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libburn.h

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00001 /* -*- indent-tabs-mode: t; tab-width: 8; c-basic-offset: 8; -*- */
00002 
00003 /* Copyright (c) 2004 - 2006 Derek Foreman, Ben Jansens
00004    Copyright (c) 2006 - 2011 Thomas Schmitt <scdbackup@gmx.net>
00005    Provided under GPL version 2 or later.
00006 
00007    This is the official API definition of libburn.
00008 
00009 */
00010 /* Important: If you add a public API function then add its name to file
00011                  libburn/libburn.ver
00012 */
00013 
00014 
00015 #ifndef LIBBURN_H
00016 #define LIBBURN_H
00017 
00018 /* 
00019 
00020 Applications must use 64 bit off_t. E.g. by defining
00021   #define _LARGEFILE_SOURCE
00022   #define _FILE_OFFSET_BITS 64
00023 or take special precautions to interface with the library by 64 bit integers
00024 where this .h files prescribe off_t.
00025 
00026 To prevent 64 bit file i/o in the library would keep the application from
00027 processing tracks of more than 2 GB size.
00028 
00029 */
00030 #include <sys/types.h>
00031 
00032 #ifndef DOXYGEN
00033 
00034 #if defined(__cplusplus)
00035 #define BURN_BEGIN_DECLS \
00036     namespace burn { \
00037         extern "C" {
00038 #define BURN_END_DECLS \
00039         } \
00040     }
00041 #else
00042 #define BURN_BEGIN_DECLS
00043 #define BURN_END_DECLS
00044 #endif
00045 
00046 BURN_BEGIN_DECLS
00047 
00048 #endif
00049 
00050 /** References a physical drive in the system */
00051 struct burn_drive;
00052 
00053 /** References a whole disc */
00054 struct burn_disc;
00055 
00056 /** References a single session on a disc */
00057 struct burn_session;
00058 
00059 /** References a single track on a disc */
00060 struct burn_track;
00061 
00062 /* ts A61111 */
00063 /** References a set of write parameters */
00064 struct burn_write_opts;
00065 
00066 /** Session format for normal audio or data discs */
00067 #define BURN_CDROM  0
00068 /** Session format for obsolete CD-I discs */
00069 #define BURN_CDI    0x10
00070 /** Session format for CDROM-XA discs */
00071 #define BURN_CDXA   0x20
00072 
00073 #define BURN_POS_END 100
00074 
00075 /** Mask for mode bits */
00076 #define BURN_MODE_BITS 127
00077 
00078 /** Track mode - mode 0 data
00079     0 bytes of user data.  it's all 0s.  mode 0.  get it?  HAH
00080 */
00081 #define BURN_MODE0      (1 << 0)
00082 /** Track mode - mode "raw" - all 2352 bytes supplied by app
00083     FOR DATA TRACKS ONLY!
00084 */
00085 #define BURN_MODE_RAW       (1 << 1)
00086 /** Track mode - mode 1 data
00087     2048 bytes user data, and all the LEC money can buy
00088 */
00089 #define BURN_MODE1      (1 << 2)
00090 /** Track mode - mode 2 data
00091     defaults to formless, 2336 bytes of user data, unprotected
00092     | with a data form if required.
00093 */
00094 #define BURN_MODE2      (1 << 3)
00095 /** Track mode modifier - Form 1, | with MODE2 for reasonable results
00096     2048 bytes of user data, 4 bytes of subheader
00097 */
00098 #define BURN_FORM1      (1 << 4)
00099 /** Track mode modifier - Form 2, | with MODE2 for reasonable results
00100     lots of user data.  not much LEC.
00101 */
00102 #define BURN_FORM2      (1 << 5)
00103 /** Track mode - audio
00104     2352 bytes per sector.  may be | with 4ch or preemphasis.
00105     NOT TO BE CONFUSED WITH BURN_MODE_RAW
00106     Audio data must be 44100Hz 16bit stereo with no riff or other header at
00107     beginning.  Extra header data will cause pops or clicks.  Audio data should
00108     also be in little-endian byte order.  Big-endian audio data causes static.
00109 */
00110 #define BURN_AUDIO      (1 << 6)
00111 /** Track mode modifier - 4 channel audio. */
00112 #define BURN_4CH        (1 << 7)
00113 /** Track mode modifier - Digital copy permitted, can be set on any track.*/
00114 #define BURN_COPY       (1 << 8)
00115 /** Track mode modifier - 50/15uS pre-emphasis */
00116 #define BURN_PREEMPHASIS    (1 << 9)
00117 /** Input mode modifier - subcodes present packed 16 */
00118 #define BURN_SUBCODE_P16    (1 << 10)
00119 /** Input mode modifier - subcodes present packed 96 */
00120 #define BURN_SUBCODE_P96    (1 << 11)
00121 /** Input mode modifier - subcodes present raw 96 */
00122 #define BURN_SUBCODE_R96    (1 << 12)
00123 
00124 /** Possible disc writing style/modes */
00125 enum burn_write_types
00126 {
00127     /** Packet writing.
00128           currently unsupported, (for DVD Incremental Streaming use TAO)
00129     */
00130     BURN_WRITE_PACKET,
00131 
00132     /** With CD:                     Track At Once recording
00133           2s gaps between tracks, no fonky lead-ins
00134 
00135         With sequential DVD-R[W]:    Incremental Streaming
00136         With DVD+R and BD-R:         Track of open size
00137         With DVD-RAM, DVD+RW, BD-RE: Random Writeable (used sequentially)
00138         With overwriteable DVD-RW:   Rigid Restricted Overwrite 
00139     */
00140     BURN_WRITE_TAO,
00141 
00142     /** With CD:                     Session At Once
00143           Block type MUST be BURN_BLOCK_SAO
00144           ts A70122: Currently not capable of mixing data and audio tracks.
00145 
00146         With sequential DVD-R[W]:    Disc-at-once, DAO
00147           Single session, single track, fixed size mandatory, (-dvd-compat)
00148         With other DVD or BD media:  same as BURN_WRITE_TAO but may demand
00149                                      that track size is known in advance.
00150     */
00151     BURN_WRITE_SAO,
00152 
00153     /** With CD: Raw disc at once recording.
00154           all subcodes must be provided by lib or user
00155           only raw block types are supported
00156         With DVD and BD media: not supported.
00157 
00158         ts A90901: This had been disabled because its implementation
00159                    relied on code from cdrdao which is not understood
00160                    currently.
00161                    A burn run will abort with "FATAL" error message
00162                    if this mode is attempted.
00163                    @since 0.7.2
00164         ts A91016: Re-implemented according to ECMA-130 Annex A and B.
00165                    Now understood, explained and not stemming from cdrdao.
00166                    @since 0.7.4
00167     */
00168     BURN_WRITE_RAW,
00169 
00170     /** In replies this indicates that not any writing will work.
00171         As parameter for inquiries it indicates that no particular write
00172             mode shall is specified.
00173         Do not use for setting a write mode for burning. It will not work.
00174     */
00175     BURN_WRITE_NONE
00176 };
00177 
00178 /** Data format to send to the drive */
00179 enum burn_block_types
00180 {
00181     /** sync, headers, edc/ecc provided by lib/user */
00182     BURN_BLOCK_RAW0 = 1,
00183     /** sync, headers, edc/ecc and p/q subs provided by lib/user */
00184     BURN_BLOCK_RAW16 = 2,
00185     /** sync, headers, edc/ecc and packed p-w subs provided by lib/user */
00186     BURN_BLOCK_RAW96P = 4,
00187     /** sync, headers, edc/ecc and raw p-w subs provided by lib/user */
00188     BURN_BLOCK_RAW96R = 8,
00189     /** only 2048 bytes of user data provided by lib/user */
00190     BURN_BLOCK_MODE1 = 256,
00191     /** 2336 bytes of user data provided by lib/user */
00192     BURN_BLOCK_MODE2R = 512,
00193     /** 2048 bytes of user data provided by lib/user
00194         subheader provided in write parameters
00195         are we ever going to support this shit?  I vote no.
00196         (supposed to be supported on all drives...)
00197     */
00198     BURN_BLOCK_MODE2_PATHETIC = 1024,
00199     /** 2048 bytes of data + 8 byte subheader provided by lib/user
00200         hey, this is also dumb
00201     */
00202     BURN_BLOCK_MODE2_LAME = 2048,
00203     /** 2324 bytes of data provided by lib/user
00204         subheader provided in write parameters
00205         no sir, I don't like it.
00206     */
00207     BURN_BLOCK_MODE2_OBSCURE = 4096,
00208     /** 2332 bytes of data supplied by lib/user
00209         8 bytes sub header provided in write parameters
00210         this is the second least suck mode2, and is mandatory for
00211         all drives to support.
00212     */
00213     BURN_BLOCK_MODE2_OK = 8192,
00214     /** SAO block sizes are based on cue sheet, so use this. */
00215     BURN_BLOCK_SAO = 16384
00216 };
00217 
00218 /** Possible status of the drive in regard to the disc in it. */
00219 enum burn_disc_status
00220 {
00221     /** The current status is not yet known */
00222     BURN_DISC_UNREADY,
00223 
00224     /** The drive holds a blank disc. It is ready for writing from scratch.
00225         Unused multi-session media:
00226           CD-R, CD-RW, DVD-R, DVD-RW, DVD+R, BD-R
00227         Blanked multi-session media (i.e. treated by burn_disc_erase())
00228           CD-RW, DVD-RW
00229         Overwriteable media with or without valid data
00230           DVD-RAM, DVD+RW, formatted DVD-RW, BD-RE
00231     */
00232     BURN_DISC_BLANK,
00233 
00234     /** There is no disc at all in the drive */
00235     BURN_DISC_EMPTY,
00236 
00237     /** There is an incomplete disc in the drive. It is ready for appending
00238         another session.
00239         Written but not yet closed multi-session media
00240           CD-R, CD-RW, DVD-R, DVD-RW, DVD+R, BD-R
00241     */
00242     BURN_DISC_APPENDABLE,
00243 
00244     /** There is a disc with data on it in the drive. It is usable only for
00245         reading.
00246         Written and closed multi-session media
00247           CD-R, CD-RW, DVD-R, DVD-RW, DVD+R, BD-R
00248         Read-Only media
00249           CD-ROM, DVD-ROM, BD-ROM
00250         Note that many DVD-ROM drives report any written media
00251         as Read-Only media and not by their real media types.
00252     */
00253     BURN_DISC_FULL,
00254 
00255     /* ts A61007 */
00256         /* @since 0.2.4 */
00257     /** The drive was not grabbed when the status was inquired */
00258     BURN_DISC_UNGRABBED,
00259 
00260     /* ts A61020 */
00261         /* @since 0.2.6 */
00262     /** The media seems to be unsuitable for reading and for writing */
00263     BURN_DISC_UNSUITABLE
00264 };
00265 
00266 
00267 /** Possible data source return values */
00268 enum burn_source_status
00269 {
00270     /** The source is ok */
00271     BURN_SOURCE_OK,
00272     /** The source is at end of file */
00273     BURN_SOURCE_EOF,
00274     /** The source is unusable */
00275     BURN_SOURCE_FAILED
00276 };
00277 
00278 
00279 /** Possible busy states for a drive */
00280 enum burn_drive_status
00281 {
00282     /** The drive is not in an operation */
00283     BURN_DRIVE_IDLE,
00284     /** The library is spawning the processes to handle a pending
00285         operation (A read/write/etc is about to start but hasn't quite
00286         yet) */
00287     BURN_DRIVE_SPAWNING,
00288     /** The drive is reading data from a disc */
00289     BURN_DRIVE_READING,
00290     /** The drive is writing data to a disc */
00291     BURN_DRIVE_WRITING,
00292     /** The drive is writing Lead-In */
00293     BURN_DRIVE_WRITING_LEADIN,
00294     /** The drive is writing Lead-Out */
00295     BURN_DRIVE_WRITING_LEADOUT,
00296     /** The drive is erasing a disc */
00297     BURN_DRIVE_ERASING,
00298     /** The drive is being grabbed */
00299     BURN_DRIVE_GRABBING,
00300 
00301     /* ts A61102 */
00302         /* @since 0.2.6 */
00303     /** The drive gets written zeroes before the track payload data */
00304     BURN_DRIVE_WRITING_PREGAP,
00305     /** The drive is told to close a track (TAO only) */
00306     BURN_DRIVE_CLOSING_TRACK,
00307     /** The drive is told to close a session (TAO only) */
00308     BURN_DRIVE_CLOSING_SESSION,
00309 
00310     /* ts A61223 */
00311         /* @since 0.3.0 */
00312     /** The drive is formatting media */
00313     BURN_DRIVE_FORMATTING,
00314 
00315     /* ts A70822 */
00316         /* @since 0.4.0 */
00317     /** The drive is busy in synchronous read (if you see this then it
00318         has been interrupted) */
00319     BURN_DRIVE_READING_SYNC,
00320     /** The drive is busy in synchronous write (if you see this then it
00321         has been interrupted) */
00322     BURN_DRIVE_WRITING_SYNC
00323     
00324 };
00325 
00326     
00327 /** Information about a track on a disc - this is from the q sub channel of the
00328     lead-in area of a disc.  The documentation here is very terse.
00329     See a document such as mmc3 for proper information.
00330 
00331     CAUTION : This structure is prone to future extension !
00332 
00333     Do not restrict your application to unsigned char with any counter like
00334     "session", "point", "pmin", ...
00335     Do not rely on the current size of a burn_toc_entry. 
00336 
00337     ts A70201 : DVD extension, see below
00338 */
00339 struct burn_toc_entry
00340 {
00341     /** Session the track is in */
00342     unsigned char session;
00343     /** Type of data.  for this struct to be valid, it must be 1 */
00344     unsigned char adr;
00345     /** Type of data in the track */
00346     unsigned char control;
00347     /** Zero.  Always.  Really. */
00348     unsigned char tno;
00349     /** Track number or special information */
00350     unsigned char point;
00351     unsigned char min;
00352     unsigned char sec;
00353     unsigned char frame;
00354     unsigned char zero;
00355     /** Track start time minutes for normal tracks */
00356     unsigned char pmin;
00357     /** Track start time seconds for normal tracks */
00358     unsigned char psec;
00359     /** Track start time frames for normal tracks */
00360     unsigned char pframe;
00361 
00362     /* Indicates whether extension data are valid and eventually override
00363        older elements in this structure:
00364          bit0= DVD extension is valid @since 0.3.2
00365                    @since 0.5.2 : DVD extensions are made valid for CD too
00366     */
00367     unsigned char extensions_valid;  
00368 
00369     /* ts A70201 : DVD extension. extensions_valid:bit0
00370        If invalid the members are guaranteed to be 0. */
00371         /* @since 0.3.2 */
00372     /* Tracks and session numbers are 16 bit. Here are the high bytes. */
00373     unsigned char session_msb;
00374     unsigned char point_msb;
00375     /* pmin, psec, and pframe may be too small if DVD extension is valid */
00376     int start_lba; 
00377     /* min, sec, and frame may be too small if DVD extension is valid */
00378     int track_blocks;
00379     
00380     /* ts A90909 : LRA extension. extensions_valid:bit1 */
00381     /* @since 0.7.2 */
00382     /* MMC-5 6.27.3.18 : The Last Recorded Address is valid for DVD-R,
00383                       DVD-R DL when LJRS = 00b, DVD-RW, HD DVD-R, and BD-R.
00384        This would mean profiles: 0x11, 0x15, 0x13, 0x14, 0x51, 0x41, 0x42 
00385     */
00386     int last_recorded_address;
00387 };
00388 
00389 
00390 /** Data source interface for tracks.
00391     This allows to use arbitrary program code as provider of track input data.
00392 
00393     Objects compliant to this interface are either provided by the application
00394     or by API calls of libburn: burn_fd_source_new() , burn_file_source_new(),
00395     and burn_fifo_source_new().
00396 
00397     The API calls allow to use any file object as data source. Consider to feed
00398     an eventual custom data stream asynchronously into a pipe(2) and to let
00399     libburn handle the rest. 
00400     In this case the following rule applies:
00401     Call burn_source_free() exactly once for every source obtained from
00402     libburn API. You MUST NOT otherwise use or manipulate its components.
00403 
00404     In general, burn_source objects can be freed as soon as they are attached
00405     to track objects. The track objects will keep them alive and dispose them
00406     when they are no longer needed. With a fifo burn_source it makes sense to
00407     keep the own reference for inquiring its state while burning is in
00408     progress.
00409 
00410     ---
00411 
00412     The following description of burn_source applies only to application
00413     implemented burn_source objects. You need not to know it for API provided
00414     ones.
00415 
00416     If you really implement an own passive data producer by this interface,
00417     then beware: it can do anything and it can spoil everything.
00418 
00419     In this case the functions (*read), (*get_size), (*set_size), (*free_data)
00420     MUST be implemented by the application and attached to the object at
00421     creation time.
00422     Function (*read_sub) is allowed to be NULL or it MUST be implemented and
00423     attached.
00424 
00425     burn_source.refcount MUST be handled properly: If not exactly as many
00426     references are freed as have been obtained, then either memory leaks or
00427     corrupted memory are the consequence.
00428     All objects which are referred to by *data must be kept existent until
00429     (*free_data) is called via burn_source_free() by the last referer.
00430 */
00431 struct burn_source {
00432 
00433     /** Reference count for the data source. MUST be 1 when a new source
00434             is created and thus the first reference is handed out. Increment
00435             it to take more references for yourself. Use burn_source_free()
00436             to destroy your references to it. */
00437     int refcount;
00438 
00439 
00440     /** Read data from the source. Semantics like with read(2), but MUST
00441         either deliver the full buffer as defined by size or MUST deliver
00442         EOF (return 0) or failure (return -1) at this call or at the
00443         next following call. I.e. the only incomplete buffer may be the
00444         last one from that source.
00445         libburn will read a single sector by each call to (*read).
00446         The size of a sector depends on BURN_MODE_*. The known range is
00447         2048 to 2352.
00448 
00449             If this call is reading from a pipe then it will learn
00450             about the end of data only when that pipe gets closed on the
00451             feeder side. So if the track size is not fixed or if the pipe
00452             delivers less than the predicted amount or if the size is not
00453             block aligned, then burning will halt until the input process
00454             closes the pipe.
00455 
00456         IMPORTANT:
00457         If this function pointer is NULL, then the struct burn_source is of
00458         version >= 1 and the job of .(*read)() is done by .(*read_xt)().
00459         See below, member .version.
00460     */
00461     int (*read)(struct burn_source *, unsigned char *buffer, int size);
00462 
00463 
00464     /** Read subchannel data from the source (NULL if lib generated) 
00465         WARNING: This is an obscure feature with CD raw write modes.
00466         Unless you checked the libburn code for correctness in that aspect
00467         you should not rely on raw writing with own subchannels.
00468         ADVICE: Set this pointer to NULL.
00469     */
00470     int (*read_sub)(struct burn_source *, unsigned char *buffer, int size);
00471 
00472 
00473     /** Get the size of the source's data. Return 0 means unpredictable
00474         size. If application provided (*get_size) allows return 0, then
00475         the application MUST provide a fully functional (*set_size).
00476     */
00477     off_t (*get_size)(struct burn_source *); 
00478 
00479 
00480     /* ts A70125 : BROKE BINARY BACKWARD COMPATIBILITY AT libburn-0.3.1. */
00481         /* @since 0.3.2 */
00482     /** Program the reply of (*get_size) to a fixed value. It is advised
00483         to implement this by a attribute  off_t fixed_size;  in *data .
00484         The read() function does not have to take into respect this fake
00485         setting. It is rather a note of libburn to itself. Eventually
00486         necessary truncation or padding is done in libburn. Truncation
00487         is usually considered a misburn. Padding is considered ok.
00488 
00489         libburn is supposed to work even if (*get_size) ignores the
00490             setting by (*set_size). But your application will not be able to
00491         enforce fixed track sizes by  burn_track_set_size() and possibly
00492         even padding might be left out.
00493     */
00494     int (*set_size)(struct burn_source *source, off_t size);
00495 
00496 
00497     /** Clean up the source specific data. This function will be called
00498         once by burn_source_free() when the last referer disposes the
00499         source.
00500     */
00501     void (*free_data)(struct burn_source *);
00502 
00503 
00504     /** Next source, for when a source runs dry and padding is disabled
00505         WARNING: This is an obscure feature. Set to NULL at creation and
00506                  from then on leave untouched and uninterpreted.
00507     */
00508     struct burn_source *next;
00509 
00510 
00511     /** Source specific data. Here the various source classes express their
00512         specific properties and the instance objects store their individual
00513         management data.
00514             E.g. data could point to a struct like this:
00515         struct app_burn_source
00516         {
00517             struct my_app *app_handle;
00518             ... other individual source parameters ...
00519             off_t fixed_size;
00520         };
00521 
00522         Function (*free_data) has to be prepared to clean up and free
00523         the struct.
00524     */
00525     void *data;
00526 
00527 
00528     /* ts A71222 : Supposed to be binary backwards compatible extension. */
00529         /* @since 0.4.2 */
00530     /** Valid only if above member .(*read)() is NULL. This indicates a
00531         version of struct burn_source younger than 0.
00532         From then on, member .version tells which further members exist
00533         in the memory layout of struct burn_source. libburn will only touch
00534         those announced extensions.
00535 
00536         Versions:
00537          0  has .(*read)() != NULL, not even .version is present.
00538              1  has .version, .(*read_xt)(), .(*cancel)()
00539     */
00540     int version;
00541 
00542     /** This substitutes for (*read)() in versions above 0. */
00543     int (*read_xt)(struct burn_source *, unsigned char *buffer, int size);
00544 
00545     /** Informs the burn_source that the consumer of data prematurely
00546         ended reading. This call may or may not be issued by libburn
00547         before (*free_data)() is called.
00548     */
00549     int (*cancel)(struct burn_source *source);
00550 };
00551 
00552 
00553 /** Information on a drive in the system */
00554 struct burn_drive_info
00555 {
00556     /** Name of the vendor of the drive */
00557     char vendor[9];
00558     /** Name of the drive */
00559     char product[17];
00560     /** Revision of the drive */
00561     char revision[5];
00562 
00563     /** Invalid: Was: "Location of the drive in the filesystem." */
00564     /** This string has no meaning any more. Once it stored the persistent
00565         drive address. Now always use function  burn_drive_d_get_adr()  to
00566         inquire a persistent address.           ^^^^^^ ALWAYS ^^^^^^^^ */
00567     char location[17];
00568 
00569     /** Can the drive read DVD-RAM discs */
00570     unsigned int read_dvdram:1;
00571     /** Can the drive read DVD-R discs */
00572     unsigned int read_dvdr:1;
00573     /** Can the drive read DVD-ROM discs */
00574     unsigned int read_dvdrom:1;
00575     /** Can the drive read CD-R discs */
00576     unsigned int read_cdr:1;
00577     /** Can the drive read CD-RW discs */
00578     unsigned int read_cdrw:1;
00579 
00580     /** Can the drive write DVD-RAM discs */
00581     unsigned int write_dvdram:1;
00582     /** Can the drive write DVD-R discs */
00583     unsigned int write_dvdr:1;
00584     /** Can the drive write CD-R discs */
00585     unsigned int write_cdr:1;
00586     /** Can the drive write CD-RW discs */
00587     unsigned int write_cdrw:1;
00588 
00589     /** Can the drive simulate a write */
00590     unsigned int write_simulate:1;
00591 
00592     /** Can the drive report C2 errors */
00593     unsigned int c2_errors:1;
00594 
00595     /** The size of the drive's buffer (in kilobytes) */
00596     int buffer_size;
00597     /** 
00598      * The supported block types in tao mode.
00599      * They should be tested with the desired block type.
00600      * See also burn_block_types.
00601      */
00602     int tao_block_types;
00603     /** 
00604      * The supported block types in sao mode.
00605      * They should be tested with the desired block type.
00606      * See also burn_block_types.
00607      */
00608     int sao_block_types;
00609     /** 
00610      * The supported block types in raw mode.
00611      * They should be tested with the desired block type.
00612      * See also burn_block_types.
00613      */
00614     int raw_block_types;
00615     /** 
00616      * The supported block types in packet mode.
00617      * They should be tested with the desired block type.
00618      * See also burn_block_types.
00619      */
00620     int packet_block_types;
00621 
00622     /** The value by which this drive can be indexed when using functions
00623         in the library. This is the value to pass to all libbburn functions
00624         that operate on a drive. */
00625     struct burn_drive *drive;
00626 };
00627 
00628 
00629 /** Operation progress report. All values are 0 based indices. 
00630  * */
00631 struct burn_progress {
00632     /** The total number of sessions */
00633     int sessions;
00634     /** Current session.*/
00635     int session;
00636     /** The total number of tracks */
00637     int tracks;
00638     /** Current track. */
00639     int track;
00640     /** The total number of indices */
00641     int indices;
00642     /** Curent index. */
00643     int index;
00644     /** The starting logical block address */
00645     int start_sector;
00646     /** On write: The number of sectors.
00647         On blank: 0x10000 as upper limit for relative progress steps */
00648     int sectors;
00649     /** On write: The current sector being processed.
00650         On blank: Relative progress steps 0 to 0x10000 */
00651     int sector;
00652 
00653     /* ts A61023 */
00654         /* @since 0.2.6 */
00655     /** The capacity of the drive buffer */
00656     unsigned buffer_capacity;
00657     /** The free space in the drive buffer (might be slightly outdated) */
00658     unsigned buffer_available;
00659 
00660     /* ts A61119 */
00661         /* @since 0.2.6 */
00662     /** The number of bytes sent to the drive buffer */
00663     off_t buffered_bytes;
00664     /** The minimum number of bytes stored in buffer during write.
00665             (Caution: Before surely one buffer size of bytes was processed,
00666                       this value is 0xffffffff.) 
00667     */
00668     unsigned buffer_min_fill;
00669 };
00670 
00671 
00672 /* ts A61226 */
00673 /* @since 0.3.0 */
00674 /** Description of a speed capability as reported by the drive in conjunction
00675     with eventually loaded media. There can be more than one such object per
00676     drive. So they are chained via .next and .prev , where NULL marks the end
00677     of the chain. This list is set up by burn_drive_scan() and gets updated
00678     by burn_drive_grab().
00679     A copy may be obtained by burn_drive_get_speedlist() and disposed by
00680     burn_drive_free_speedlist().
00681     For technical background info see SCSI specs MMC and SPC:
00682     mode page 2Ah (from SPC 5Ah MODE SENSE) , mmc3r10g.pdf , 6.3.11 Table 364
00683     ACh GET PERFORMANCE, Type 03h , mmc5r03c.pdf , 6.8.5.3 Table 312
00684 */
00685 struct burn_speed_descriptor {
00686 
00687     /** Where this info comes from : 
00688         0 = misc , 1 = mode page 2Ah , 2 = ACh GET PERFORMANCE */
00689     int source;
00690 
00691     /** The media type that was current at the time of report
00692         -2 = state unknown, -1 = no media was loaded , else see
00693         burn_disc_get_profile() */
00694     int profile_loaded;
00695     char profile_name[80];
00696 
00697     /** The attributed capacity of appropriate media in logical block units
00698         i.e. 2352 raw bytes or 2048 data bytes. -1 = capacity unknown. */
00699     int end_lba;
00700 
00701     /** Speed is given in 1000 bytes/s , 0 = invalid. The numbers
00702         are supposed to be usable with burn_drive_set_speed() */
00703     int write_speed;
00704     int read_speed;
00705 
00706     /** Expert info from ACh GET PERFORMANCE and/or mode page 2Ah.
00707         Expect values other than 0 or 1 to get a meaning in future.*/
00708     /* Rotational control: 0 = CLV/default , 1 = CAV */
00709     int wrc;
00710     /* 1 = drive promises reported performance over full media */
00711     int exact;
00712     /* 1 = suitable for mixture of read and write */
00713     int mrw;
00714 
00715     /** List chaining. Use .next until NULL to iterate over the list */
00716     struct burn_speed_descriptor *prev;
00717     struct burn_speed_descriptor *next;
00718 };
00719 
00720 
00721 /** Initialize the library.
00722     This must be called before using any other functions in the library. It
00723     may be called more than once with no effect.
00724     It is possible to 'restart' the library by shutting it down and
00725     re-initializing it. Once this was necessary if you follow the older and
00726     more general way of accessing a drive via burn_drive_scan() and
00727     burn_drive_grab(). See burn_drive_scan_and_grab() with its strong
00728     urges and its explanations.
00729     @return Nonzero if the library was able to initialize; zero if
00730             initialization failed.
00731 */
00732 int burn_initialize(void);
00733 
00734 /** Shutdown the library.
00735     This should be called before exiting your application. Make sure that all
00736     drives you have grabbed are released <i>before</i> calling this.
00737 */
00738 void burn_finish(void);
00739 
00740 
00741 /* ts A61002 */
00742 /** Abort any running drive operation and eventually call burn_finish().
00743 
00744     You MUST shut down the busy drives if an aborting event occurs during a
00745     burn run. For that you may call this function either from your own signal
00746     handling code or indirectly by activating the built-in signal handling:
00747       burn_set_signal_handling("my_app_name : ", NULL, 0);
00748     Else you may eventually call burn_drive_cancel() on the active drives and
00749     wait for them to assume state BURN_DRIVE_IDLE.
00750     @param patience      Maximum number of seconds to wait for drives to
00751                          finish.
00752                          @since 0.7.8 :
00753                          If this is -1, then only the cancel operations will
00754                          be performed and no burn_finish() will happen.
00755     @param pacifier_func If not NULL: a function to produce appeasing messages.
00756                          See burn_abort_pacifier() for an example.
00757     @param handle        Opaque handle to be used with pacifier_func
00758     @return 1  ok, all went well
00759             0  had to leave a drive in unclean state
00760             <0 severe error, do no use libburn again
00761     @since 0.2.6
00762 */
00763 int burn_abort(int patience, 
00764                int (*pacifier_func)(void *handle, int patience, int elapsed),
00765                void *handle);
00766 
00767 /** A pacifier function suitable for burn_abort.
00768     @param handle If not NULL, a pointer to a text suitable for printf("%s")
00769     @param patience Maximum number of seconds to wait
00770     @param elapsed  Elapsed number of seconds
00771 */
00772 int burn_abort_pacifier(void *handle, int patience, int elapsed);
00773 
00774 
00775 /** ts A61006 : This is for development only. Not suitable for applications.
00776     Set the verbosity level of the library. The default value is 0, which means
00777     that nothing is output on stderr. The more you increase this, the more
00778     debug output should be displayed on stderr for you.
00779     @param level The verbosity level desired. 0 for nothing, higher positive
00780                  values for more information output.
00781 */
00782 void burn_set_verbosity(int level);
00783 
00784 /* ts A91111 */
00785 /** Enable resp. disable logging of SCSI commands (currently GNU/Linux only).
00786     This call can be made at any time - even before burn_initialize().
00787     It is in effect for all active drives and currently not very thread
00788     safe for multiple drives.
00789     @param flag  Bitfield for control purposes. The default is 0.
00790                  bit0= log to file /tmp/libburn_sg_command_log
00791                  bit1= log to stderr
00792                  bit2= flush output after each line
00793     @since 0.7.4
00794 */
00795 void burn_set_scsi_logging(int flag);
00796 
00797 /* ts A60813 */
00798 /** Set parameters for behavior on opening device files. To be called early
00799     after burn_initialize() and before any bus scan. But not mandatory at all.
00800     Parameter value 1 enables a feature, 0 disables.  
00801     Default is (1,0,0). Have a good reason before you change it.
00802     @param exclusive
00803                      0 = no attempt to make drive access exclusive.
00804                      1 = Try to open only devices which are not marked as busy
00805                      and try to mark them busy if opened sucessfully. (O_EXCL
00806                      on GNU/Linux , flock(LOCK_EX) on FreeBSD.)
00807                      2 = in case of a SCSI device, also try to open exclusively
00808                          the matching /dev/sr, /dev/scd and /dev/st .
00809                      One may select a device SCSI file family by adding
00810                       0 = default family
00811                       4 = /dev/sr%d
00812                       8 = /dev/scd%d
00813                      16 = /dev/sg%d
00814                      Do not use other values !
00815                      Add 32 to demand on GNU/Linux an exclusive lock by
00816                      fcntl(,F_SETLK,) after open() has succeeded.
00817     @param blocking  Try to wait for drives which do not open immediately but
00818                      also do not return an error as well. (O_NONBLOCK)
00819                      This might stall indefinitely with /dev/hdX hard disks.
00820     @param abort_on_busy  Unconditionally abort process when a non blocking
00821                           exclusive opening attempt indicates a busy drive.
00822                           Use this only after thorough tests with your app.
00823     @since 0.2.2
00824 */
00825 void burn_preset_device_open(int exclusive, int blocking, int abort_on_busy);
00826 
00827 
00828 /* ts A70223 */
00829 /** Allows the use of media types which are implemented in libburn but not yet
00830     tested. The list of those untested profiles is subject to change.
00831              - Currently no media types are under test reservation -
00832     If you really test such media, then please report the outcome on
00833     libburn-hackers@pykix.org
00834     If ever then this call should be done soon after burn_initialize() before
00835     any drive scanning.
00836     @param yes 1=allow all implemented profiles, 0=only tested media (default)
00837     @since 0.3.4
00838 */
00839 void burn_allow_untested_profiles(int yes);
00840 
00841 
00842 /* ts A60823 */
00843 /** Aquire a drive with known persistent address.
00844 
00845     This is the sysadmin friendly way to open one drive and to leave all
00846     others untouched. It bundles the following API calls to form a
00847     non-obtrusive way to use libburn:
00848       burn_drive_add_whitelist() , burn_drive_scan() , burn_drive_grab()
00849     You are *strongly urged* to use this call whenever you know the drive
00850     address in advance.
00851 
00852     If not, then you have to use directly above calls. In that case, you are
00853     *strongly urged* to drop any unintended drive which will be exclusively
00854     occupied and not closed by burn_drive_scan().
00855     This can be done by shutting down the library including a call to
00856     burn_finish(). You may later start a new libburn session and should then
00857     use the function described here with an address obtained after
00858     burn_drive_scan() via burn_drive_d_get_adr(drive_infos[driveno].drive,adr).
00859     Another way is to drop the unwanted drives by burn_drive_info_forget().
00860 
00861     Operating on multiple drives:
00862 
00863     Different than with burn_drive_scan() it is allowed to call
00864     burn_drive_scan_and_grab() without giving up any other scanned drives. So
00865     this call can be used to get a collection of more than one aquired drives.
00866     The attempt to aquire the same drive twice will fail, though.
00867 
00868     Pseudo-drives:
00869 
00870     burn_drive_scan_and_grab() is able to aquire virtual drives which will
00871     accept options much like a MMC burner drive. Many of those options will not
00872     cause any effect, though. The address of a pseudo-drive begins with
00873     prefix "stdio:" followed by a path.
00874     Examples:  "stdio:/tmp/pseudo_drive" , "stdio:/dev/null" , "stdio:-"
00875 
00876     If the path is empty, the result is a null-drive = drive role 0.
00877     It pretends to have loaded no media and supports no reading or writing.
00878 
00879     If the path leads to an existing regular file, or to a not yet existing
00880     file, or to an existing block device, then the result is a random access
00881     stdio-drive capable of reading and writing = drive role 2.
00882 
00883     If the path leads to an existing file of any type other than directory,
00884     then the result is a sequential write-only stdio-drive = drive role 3.
00885 
00886     The special address form "stdio:/dev/fd/{number}" is interpreted literally
00887     as reference to open file descriptor {number}. This address form coincides
00888     with real files on some systems, but it is in fact hardcoded in libburn.
00889     Special address "stdio:-" means stdout = "stdio:/dev/fd/1".
00890     The role of such a drive is determined by the file type obtained via
00891     fstat({number}).
00892    
00893     Roles 2 and 3 perform all their eventual data transfer activities on a file
00894     via standard i/o functions open(2), lseek(2), read(2), write(2), close(2).
00895     The media profile is reported as 0xffff. Write space information from those
00896     media is not necessarily realistic.
00897 
00898     The capabilities of role 2 resemble DVD-RAM but it can simulate writing.
00899     If the path does not exist in the filesystem yet, it is attempted to create
00900     it as a regular file as soon as write operations are started.
00901 
00902     The capabilities of role 3 resemble a blank DVD-R. Nevertheless each
00903     burn_disc_write() run may only write a single track.
00904 
00905     One may distinguish pseudo-drives from MMC drives by call
00906     burn_drive_get_drive_role().
00907 
00908     @param drive_infos On success returns a one element array with the drive
00909                   (cdrom/burner). Thus use with driveno 0 only. On failure
00910                   the array has no valid elements at all.
00911                   The returned array should be freed via burn_drive_info_free()
00912                   when it is no longer needed.
00913                   This is a result from call burn_drive_scan(). See there.
00914                   Use with driveno 0 only.
00915     @param adr    The persistent address of the desired drive. Either once
00916                   obtained by burn_drive_d_get_adr() or composed skillfully by
00917                   application resp. its user. E.g. "/dev/sr0".
00918                   Consider to preprocess it by burn_drive_convert_fs_adr().
00919     @param load   Nonzero to make the drive attempt to load a disc (close its
00920                   tray door, etc).
00921     @return       1 = success , 0 = drive not found , -1 = other error
00922     @since 0.2.2
00923 */    
00924 int burn_drive_scan_and_grab(struct burn_drive_info *drive_infos[],
00925                              char* adr, int load);
00926 
00927 
00928 /* ts A51221 */
00929 /* @since 0.2.2 */
00930 /** Maximum number of particularly permissible drive addresses */
00931 #define BURN_DRIVE_WHITELIST_LEN 255
00932 
00933 /** Add a device to the list of permissible drives. As soon as some entry is in
00934     the whitelist all non-listed drives are banned from scanning.
00935     @return 1 success, <=0 failure
00936     @since 0.2.2
00937 */
00938 int burn_drive_add_whitelist(char *device_address);
00939 
00940 /** Remove all drives from whitelist. This enables all possible drives. */
00941 void burn_drive_clear_whitelist(void);
00942 
00943 
00944 /** Scan for drives. This function MUST be called until it returns nonzero.
00945     In case of re-scanning:
00946     All pointers to struct burn_drive and all struct burn_drive_info arrays
00947     are invalidated by using this function. Do NOT store drive pointers across
00948     calls to this function !
00949     To avoid invalid pointers one MUST free all burn_drive_info arrays
00950     by burn_drive_info_free() before calling burn_drive_scan() a second time.
00951     If there are drives left, then burn_drive_scan() will refuse to work.
00952 
00953     After this call all drives depicted by the returned array are subject
00954     to eventual (O_EXCL) locking. See burn_preset_device_open(). This state
00955     ends either with burn_drive_info_forget() or with burn_drive_release().
00956     It is unfriendly to other processes on the system to hold drives locked
00957     which one does not definitely plan to use soon.
00958     @param drive_infos Returns an array of drive info items (cdroms/burners).
00959                   The returned array must be freed by burn_drive_info_free()
00960                   before burn_finish(), and also before calling this function
00961                   burn_drive_scan() again.
00962     @param n_drives Returns the number of drive items in drive_infos.
00963     @return 0 while scanning is not complete
00964             >0 when it is finished sucessfully,
00965             <0 when finished but failed.
00966 */
00967 int burn_drive_scan(struct burn_drive_info *drive_infos[],
00968             unsigned int *n_drives);
00969 
00970 /* ts A60904 : ticket 62, contribution by elmom */
00971 /** Release memory about a single drive and any exclusive lock on it.
00972     Become unable to inquire or grab it. Expect FATAL consequences if you try.
00973     @param drive_info pointer to a single element out of the array
00974                       obtained from burn_drive_scan() : &(drive_infos[driveno])
00975     @param force controls degree of permissible drive usage at the moment this
00976                  function is called, and the amount of automatically provided
00977                  drive shutdown : 
00978                   0= drive must be ungrabbed and BURN_DRIVE_IDLE
00979                   1= try to release drive resp. accept BURN_DRIVE_GRABBING 
00980                  Use these two only. Further values are to be defined.
00981     @return 1 on success, 2 if drive was already forgotten,
00982             0 if not permissible, <0 on other failures, 
00983     @since 0.2.2
00984 */
00985 int burn_drive_info_forget(struct burn_drive_info *drive_info, int force);
00986 
00987 
00988 /** When no longer needed, free a whole burn_drive_info array which was
00989     returned by burn_drive_scan().
00990     For freeing single drive array elements use burn_drive_info_forget().
00991 */
00992 void burn_drive_info_free(struct burn_drive_info drive_infos[]);
00993 
00994 
00995 /* ts A60823 */
00996 /* @since 0.2.2 */
00997 /** Maximum length+1 to expect with a persistent drive address string */
00998 #define BURN_DRIVE_ADR_LEN 1024
00999 
01000 /* ts A70906 */
01001 /** Inquire the persistent address of the given drive.
01002     @param drive The drive to inquire.
01003     @param adr   An application provided array of at least BURN_DRIVE_ADR_LEN
01004                  characters size. The persistent address gets copied to it.
01005     @return >0 success , <=0 error (due to libburn internal problem)
01006     @since 0.4.0
01007 */
01008 int burn_drive_d_get_adr(struct burn_drive *drive, char adr[]);
01009 
01010 /* A60823 */
01011 /** Inquire the persistent address of a drive via a given drive_info object.
01012     (Note: This is a legacy call.)
01013     @param drive_info The drive to inquire.Usually some &(drive_infos[driveno])
01014     @param adr   An application provided array of at least BURN_DRIVE_ADR_LEN
01015                  characters size. The persistent address gets copied to it.
01016     @return >0 success , <=0 error (due to libburn internal problem)
01017     @since 0.2.6
01018 */
01019 int burn_drive_get_adr(struct burn_drive_info *drive_info, char adr[]);
01020 
01021 
01022 /* ts A60922 ticket 33 */
01023 /** Evaluate whether the given address would be a possible persistent drive
01024     address of libburn.
01025     @return 1 means yes, 0 means no
01026     @since 0.2.6
01027 */
01028 int burn_drive_is_enumerable_adr(char *adr);
01029 
01030 /* ts A60922 ticket 33 */
01031 /** Try to convert a given existing filesystem address into a persistent drive
01032     address. This succeeds with symbolic links or if a hint about the drive's
01033     system address can be read from the filesystem object and a matching drive
01034     is found.
01035     @param path The address of an existing file system object
01036     @param adr  An application provided array of at least BURN_DRIVE_ADR_LEN
01037                 characters size. The persistent address gets copied to it.
01038     @return     1 = success , 0 = failure , -1 = severe error
01039     @since 0.2.6
01040 */
01041 int burn_drive_convert_fs_adr(char *path, char adr[]);
01042 
01043 /* ts A60923 */
01044 /** Try to convert a given SCSI address of bus,host,channel,target,lun into
01045     a persistent drive address. If a SCSI address component parameter is < 0
01046     then it is not decisive and the first enumerated address which matches
01047     the >= 0 parameters is taken as result.
01048     Note: bus and (host,channel) are supposed to be redundant.
01049     @param bus_no "Bus Number" (something like a virtual controller)
01050     @param host_no "Host Number" (something like half a virtual controller)
01051     @param channel_no "Channel Number" (other half of "Host Number")
01052     @param target_no "Target Number" or "SCSI Id" (a device)
01053     @param lun_no "Logical Unit Number" (a sub device)
01054     @param adr  An application provided array of at least BURN_DRIVE_ADR_LEN
01055                 characters size. The persistent address gets copied to it.
01056     @return     1 = success , 0 = failure , -1 = severe error
01057     @since 0.2.6
01058 */
01059 int burn_drive_convert_scsi_adr(int bus_no, int host_no, int channel_no,
01060                  int target_no, int lun_no, char adr[]);
01061 
01062 /* ts B10728 */
01063 /** Try to convert a given persistent drive address into the address of a
01064     symbolic link that points to this drive address.
01065     Modern GNU/Linux systems may shuffle drive addresses from boot to boot.
01066     The udev daemon is supposed to create links which always point to the
01067     same drive, regardless of its system address.
01068     This call tries to find such links.
01069     @param dev_adr     Should contain a drive address as returned by
01070                        burn_drive_scan().
01071     @param link_adr    An application provided array of at least
01072                        BURN_DRIVE_ADR_LEN characters size. The found link
01073                        address gets copied to it.
01074     @param dir_adr     The address of the directory where to look for links.
01075                        Normally: "/dev"
01076     @param templ       An array of pointers to name templates, which
01077                        links have to match. A symbolic link in dir_adr matches
01078                        a name template if it begins by that text. E.g.
01079                        link address "/dev/dvdrw1" matches template "dvdrw".
01080                        If templ is NULL, then the default array gets used:
01081                         {"dvdrw", "cdrw", "dvd", "cdrom", "cd"}
01082                        If several links would match, then a link will win,
01083                        which matches the template with the lowest array index.
01084                        Among these candidates, the one with the lowest strcmp()
01085                        rank will be chosen as link_adr.
01086     @param num_templ   Number of array elements in templ.
01087     @param flag        Bitfield for control purposes. Unused yet. Submit 0.
01088     @return            <0 severe error, 0 failed to search, 2 nothing found
01089                        1 success, link_adr is valid
01090     @since 1.1.4
01091 */
01092 int burn_lookup_device_link(char *dev_adr, char link_adr[],
01093                          char *dir_adr, char **templ, int num_templ, int flag);
01094 
01095 /* ts A60923 - A61005 */
01096 /** Try to obtain bus,host,channel,target,lun from path. If there is an SCSI
01097     address at all, then this call should succeed with a persistent
01098     drive address obtained via burn_drive_d_get_adr(). It is also supposed to
01099     succeed with any device file of a (possibly emulated) SCSI device.
01100     @return     1 = success , 0 = failure , -1 = severe error
01101     @since 0.2.6
01102 */
01103 int burn_drive_obtain_scsi_adr(char *path, int *bus_no, int *host_no,
01104                 int *channel_no, int *target_no, int *lun_no);
01105 
01106 /** Grab a drive. This must be done before the drive can be used (for reading,
01107     writing, etc).
01108     @param drive The drive to grab. This is found in a returned
01109                  burn_drive_info struct.
01110     @param load Nonzero to make the drive attempt to load a disc (close its
01111                 tray door, etc).
01112     @return 1 if it was possible to grab the drive, else 0
01113 */
01114 int burn_drive_grab(struct burn_drive *drive, int load);
01115 
01116 /* ts B00114 */
01117 /* Probe available CD write modes and block types. In earlier versions this
01118    was done unconditionally on drive examination or aquiration. But it is
01119    lengthy and obtrusive, up to spoiling burn runs on the examined drives.
01120    So now this probing is omitted by default. All drives which announce to be
01121    capable of CD or DVD writing, get blindly attributed the capability for
01122    SAO and TAO. Applications which are interested in RAW modes or want to
01123    rely on the traditional write mode information, may use this call.
01124    @param drive_info  drive object to be inquired
01125    @return            >0 indicates success, <=0 means failure
01126    @since 0.7.6
01127 */
01128 int burn_drive_probe_cd_write_modes(struct burn_drive_info *drive_info);
01129 
01130 /* ts A90824 */
01131 /** Calm down or alert a drive. Some drives stay alert after reading for
01132     quite some time. This saves time with the startup for the next read
01133     operation but also causes noise and consumes extra energy. It makes
01134     sense to calm down the drive if no read operation is expected for the
01135     next few seconds. The drive will get alert automatically if operations
01136     are required.
01137     @param d      The drive to influence.
01138     @param flag   Bitfield for control purposes
01139                   bit0= become alert (else start snoozing)
01140                         This is not mandatory to allow further drive operations
01141     @return       1= success , 0= drive role not suitable for calming
01142     @since 0.7.0
01143 */
01144 int burn_drive_snooze(struct burn_drive *d, int flag);
01145 
01146 
01147 /** Release a drive. This should not be done until the drive is no longer
01148     busy (see burn_drive_get_status).
01149     @param drive The drive to release.
01150     @param eject Nonzero to make the drive eject the disc in it.
01151 */
01152 void burn_drive_release(struct burn_drive *drive, int eject);
01153 
01154 
01155 /* ts A70918 */
01156 /** Like burn_drive_release() but keeping the drive tray closed and its
01157     eject button disabled. This physically locked drive state will last until
01158     the drive is grabbed again and released via burn_drive_release().
01159     Programs like eject, cdrecord, growisofs will break that ban too.
01160     @param d    The drive to release and leave locked.
01161     @param flag Bitfield for control purposes (unused yet, submit 0)
01162     @return 1 means success, <=0 means failure
01163     @since 0.4.0
01164 */
01165 int burn_drive_leave_locked(struct burn_drive *d, int flag);
01166 
01167 
01168 /** Returns what kind of disc a drive is holding. This function may need to be
01169     called more than once to get a proper status from it. See burn_disc_status
01170     for details.
01171     @param drive The drive to query for a disc.
01172     @return The status of the drive, or what kind of disc is in it.
01173             Note: BURN_DISC_UNGRABBED indicates wrong API usage
01174 */
01175 enum burn_disc_status burn_disc_get_status(struct burn_drive *drive);
01176 
01177 
01178 /* ts A61020 */
01179 /** WARNING: This revives an old bug-like behavior that might be dangerous.
01180     Sets the drive status to BURN_DISC_BLANK if it is BURN_DISC_UNREADY
01181     or BURN_DISC_UNSUITABLE. Thus marking media as writable which actually
01182     failed to declare themselves either blank or (partially) filled.
01183     @return 1 drive status has been set , 0 = unsuitable drive status
01184     @since 0.2.6
01185 */
01186 int burn_disc_pretend_blank(struct burn_drive *drive);
01187 
01188 
01189 /* ts A61106 */
01190 /** WARNING: This overrides the safety measures against unsuitable media.
01191     Sets the drive status to BURN_DISC_FULL if it is BURN_DISC_UNREADY
01192     or BURN_DISC_UNSUITABLE. Thus marking media as blankable which actually
01193     failed to declare themselves either blank or (partially) filled.
01194     @since 0.2.6
01195 */
01196 int burn_disc_pretend_full(struct burn_drive *drive);
01197 
01198 
01199 /* ts A61021 */
01200 /** Reads ATIP information from inserted media. To be obtained via
01201     burn_drive_get_write_speed(), burn_drive_get_min_write_speed(),
01202     burn_drive_get_start_end_lba(). The drive must be grabbed for this call.
01203     @param drive The drive to query.
01204     @return 1=sucess, 0=no valid ATIP info read, -1 severe error
01205     @since 0.2.6
01206 */
01207 int burn_disc_read_atip(struct burn_drive *drive);
01208 
01209 
01210 /* ts A61020 */
01211 /** Returns start and end lba of the media which is currently inserted
01212     in the given drive. The drive has to be grabbed to have hope for reply.
01213     Shortcomming (not a feature): unless burn_disc_read_atip() was called 
01214     only blank media will return valid info.
01215     @param drive The drive to query.
01216     @param start_lba Returns the start lba value
01217     @param end_lba Returns the end lba value
01218     @param flag Bitfield for control purposes (unused yet, submit 0)
01219     @return 1 if lba values are valid , 0 if invalid
01220     @since 0.2.6
01221 */
01222 int burn_drive_get_start_end_lba(struct burn_drive *drive,
01223                                  int *start_lba, int *end_lba, int flag);
01224 
01225 
01226 /* ts A90902 */
01227 /** Guess the manufacturer name of CD media from the ATIP addresses of lead-in
01228     and lead-out. (Currently only lead-in is interpreted. Lead-out may in
01229     future be used to identify the media type in more detail.)
01230     The parameters of this call should be obtained by burn_disc_read_atip(d),
01231     burn_drive_get_start_end_lba(d, &start_lba, &end_lba, 0),
01232     burn_lba_to_msf(start_lba, &m_li, &s_li, &f_li) and
01233     burn_lba_to_msf(end_lba, &m_lo, &s_lo, &f_lo).
01234     @param m_li  "minute" part of ATIP lead-in resp. start_lba
01235     @param s_li  "second" of lead-in resp. start_lba
01236     @param f_li  "frame" of lead-in
01237     @param m_lo  "minute" part of ATIP lead-out
01238     @param s_lo  "second" of lead-out
01239     @param f_lo  "frame" of lead-out
01240     @param flag  Bitfield for control purposes,
01241                  bit0= append a text "(aka ...)" to reply if other brands or
01242                        vendor names are known.
01243     @return      Printable text or NULL on memory shortage.
01244                  Dispose by free() when no longer needed.
01245     @since 0.7.2
01246 */
01247 char *burn_guess_cd_manufacturer(int m_li, int s_li, int f_li,
01248                                  int m_lo, int s_lo, int f_lo, int flag);
01249 
01250 /* ts A90909 */
01251 /** Retrieve some media information which is mainly specific to CD. For other
01252     media only the bits in reply parameter valid are supposed to be meaningful.
01253     @param d         The drive to query.
01254     @param disc_type A string saying either "CD-DA or CD-ROM", or "CD-I",
01255                      or ""CD-ROM XA", or "undefined".
01256     @param disc_id   A 32 bit number read from the media. (Meaning unclear yet)
01257     @param bar_code  8 hex digits from a barcode on media read by the drive
01258                      (if the drive has a bar code reader built in).
01259     @param app_code  The Host Application Code which must be set in the Write
01260                      Parameters Page if the media is not unrestricted (URU==0).
01261     @param valid     Replies bits which indicate the validity of other reply
01262                      parameters or the state of certain CD info bits:
01263                      bit0= disc_type is valid
01264                      bit1= disc_id is valid
01265                      bit2= bar_code is valid
01266                      bit3= disc_app_code is valid
01267                      bit4= Disc is unrestricted (URU bit, 51h READ DISC INFO)
01268                            This seems to be broken with my drives. The bit is
01269                            0 and the validity bit for disc_app_code is 0 too.
01270                      bit5= Disc is nominally erasable (Erasable bit)
01271                            This will be set with overwriteable media which
01272                            libburn normally considers to be unerasable blank.
01273     @return          1 success, <= 0 an error occured
01274     @since 0.7.2
01275 */
01276 int burn_disc_get_cd_info(struct burn_drive *d, char disc_type[80],
01277                         unsigned int *disc_id, char bar_code[9], int *app_code,
01278             int *valid);
01279 
01280 /* ts B00924 */
01281 /** Read the current usage of the eventual BD Spare Area. This area gets
01282     reserved on BD media during formatting. During writing it is used to
01283     host replacements of blocks which failed the checkread immediately after
01284     writing.
01285     This call applies only to recordable BD media. I.e. profiles 0x41 to 0x43.
01286     @param d            The drive to query.
01287     @param alloc_blocks Returns the number of blocks reserved as Spare Area
01288     @param free_blocks  Returns the number of yet unused blocks in that area
01289     @param flag         Bitfield for control purposes (unused yet, submit 0)
01290     @return             1 = reply prarameters are valid,
01291                         <=0 = reply is invalid (e.g. because no BD profile)
01292     @since 0.8.8
01293 */
01294 int burn_disc_get_bd_spare_info(struct burn_drive *d,
01295                                 int *alloc_blocks, int *free_blocks, int flag);
01296 
01297 /* ts B10801 */
01298 /** Retrieve some media information which is mainly specific to media of
01299     the DVD-R family: DVD-R , DVD-RW , DVD-R DL , HD DVD-R
01300     Currently the information cannot be retrieved from other media types.
01301     @param d              The drive to query.
01302     @param disk_category  returns DVD Book to which the media complies
01303     @param book_name      returns a pointer to the book name of disk_category.
01304                           This memory is static. Do not alter or free it !
01305     @param part_version   returns the Media Version in the DVD Book
01306     @param num_layers     returns the number of media layers
01307     @param num_blocks     returns the number of blocks between pysical start
01308                           and physical end of the media
01309     @param flag           Bitfield for control purposes (unused yet, submit 0)
01310     @return               1 = reply prarameters are valid,
01311                           <=0 = reply is invalid (e.g. because no DVD-R)
01312     @since 1.1.4
01313 */
01314 int burn_disc_get_phys_format_info(struct burn_drive *d, int *disk_category,
01315                         char **book_name, int *part_version, int *num_layers,
01316                         int *num_blocks, int flag);
01317 
01318 /* ts A61110 */
01319 /** Read start lba and Next Writeable Address of a track from media.
01320     Usually a track lba is obtained from the result of burn_track_get_entry().
01321     This call retrieves an updated lba, eventual nwa, and can address the
01322     invisible track to come.
01323     The drive must be grabbed for this call. One may not issue this call
01324     during ongoing burn_disc_write() or burn_disc_erase().
01325     @param d The drive to query.
01326     @param o If not NULL: write parameters to be set on drive before query
01327     @param trackno 0=next track to come, >0 number of existing track
01328     @param lba return value: start lba
01329     @param nwa return value: Next Writeable Address
01330     @return 1=nwa is valid , 0=nwa is not valid , -1=error
01331     @since 0.2.6
01332 */
01333 int burn_disc_track_lba_nwa(struct burn_drive *d, struct burn_write_opts *o,
01334                 int trackno, int *lba, int *nwa);
01335 
01336 /* ts B10525 */
01337 /** Tells whether a previous attempt to determine the Next Writeable Address
01338     of the upcomming track reveiled that the READ TRACK INFORMATION Damage Bit
01339     is set for this track, resp. that no valid writable address is available. 
01340     See MMC-5 6.27.3.7 Damage Bit, 6.27.3.11 NWA_V (NWA valid)
01341     @param d     The drive to query.
01342     @param flag  Bitfield for control purposes (unused yet, submit 0)
01343     @return      0= Looks ok: Damage Bit is not set, NWA_V is set
01344                  1= Damaged and theoretically writable (NWA_V is set)
01345                  2= Not writable: NWA_V is not set
01346                  3= Damaged and not writable (NWA_V is not set),
01347     @since 1.1.0
01348 */
01349 int burn_disc_next_track_is_damaged(struct burn_drive *d, int flag);
01350 
01351 /* ts B10527 */
01352 /** Try to close the last track and session of media which have bit0 set in
01353     the return value of call burn_disc_next_track_is_damaged().
01354     Whether it helps depends much on the reason why the media is reported
01355     as damaged by the drive.
01356     This call works only for profiles 0x09 CD-R, 0x0a CD-RW, 0x11 DVD-R,
01357     0x14 DVD-RW sequential, 0x1b DVD+R, 0x2b DVD+R DL, 0x41 BD-R sequential.
01358     Note: After writing it is advised to give up the drive and to grab it again
01359           in order to learn about its view on the new media state.
01360     @param o     Write options created by burn_write_opts_new() and
01361                  manipulated by burn_write_opts_set_multi().
01362                  burn_write_opts_set_write_type() should be set to
01363                  BURN_WRITE_TAO, burn_write_opts_set_simulate() should be
01364                  set to 0.
01365     @param flag  Bitfield for control purposes
01366                  bit0= force close, even if no damage was seen
01367     @return      <=0 media not marked as damaged, or media type not suitable,
01368                      or closing attempted but failed
01369                  1= attempt finished without error indication
01370     @since 1.1.0
01371 */
01372 int burn_disc_close_damaged(struct burn_write_opts *o, int flag);
01373 
01374 
01375 /* ts A70131 */
01376 /** Read start lba of the first track in the last complete session.
01377     This is the first parameter of mkisofs option -C. The second parameter
01378     is nwa as obtained by burn_disc_track_lba_nwa() with trackno 0.
01379     @param d The drive to query.
01380     @param start_lba returns the start address of that track
01381     @return <= 0 : failure, 1 = ok 
01382     @since 0.3.2
01383 */
01384 int burn_disc_get_msc1(struct burn_drive *d, int *start_lba);
01385 
01386 
01387 /* ts A70213 */
01388 /** Return the best possible estimation of the currently available capacity of
01389     the media. This might depend on particular write option settings. For
01390     inquiring the space with such a set of options, the drive has to be
01391     grabbed and BURN_DRIVE_IDLE. If not, then one will only get a canned value
01392     from the most recent automatic inquiry (e.g. during last drive grabbing).
01393     An eventual start address from burn_write_opts_set_start_byte() will be
01394     subtracted from the obtained capacity estimation. Negative results get
01395     defaulted to 0.
01396     If the drive is actually a file in a large filesystem or a large block
01397     device, then the capacity is curbed to a maximum of 0x7ffffff0 blocks
01398     = 4 TB - 32 KB.
01399     @param d The drive to query.
01400     @param o If not NULL: write parameters to be set on drive before query
01401     @return number of most probably available free bytes
01402     @since 0.3.4
01403 */
01404 off_t burn_disc_available_space(struct burn_drive *d,
01405                                 struct burn_write_opts *o);
01406 
01407 /* ts A61202 */
01408 /** Tells the MMC Profile identifier of the loaded media. The drive must be
01409     grabbed in order to get a non-zero result.
01410     libburn currently writes only to profiles 
01411       0x09 "CD-R"
01412       0x0a "CD-RW"
01413       0x11 "DVD-R sequential recording"
01414       0x12 "DVD-RAM"
01415       0x13 "DVD-RW restricted overwrite"
01416       0x14 "DVD-RW sequential recording",
01417       0x15 "DVD-R/DL sequential recording",
01418       0x1a "DVD+RW"
01419       0x1b "DVD+R",
01420       0x2b "DVD+R/DL",
01421       0x41 "BD-R sequential recording",
01422       0x43 "BD-RE",
01423       0xffff "stdio file"
01424     Note: 0xffff is not a MMC profile but a libburn invention.
01425     Read-only are the profiles
01426       0x08 "CD-ROM",
01427       0x10 "DVD-ROM",
01428       0x40 "BD-ROM",
01429     Read-only for now is this BD-R profile (testers wanted)
01430       0x42 "BD-R random recording"
01431     @param d The drive where the media is inserted.
01432     @param pno Profile Number. See also mmc5r03c.pdf, table 89
01433     @param name Profile Name (see above list, unknown profiles have empty name)
01434     @return 1 profile is valid, 0 no profile info available 
01435     @since 0.3.0
01436 */
01437 int burn_disc_get_profile(struct burn_drive *d, int *pno, char name[80]);
01438 
01439 
01440 /* ts A90903 : API */
01441 /** Obtain product id and standards defined media codes.
01442     The product id is a printable string which is supposed to be the same
01443     for identical media but should vary with non-identical media. Some media
01444     do not allow to obtain such an id at all. 
01445     The pair (profile_number, product_id) should be the best id to identify
01446     media with identical product specifications.
01447     The reply parameters media_code1 and media_code2 can be used with
01448     burn_guess_manufacturer()
01449     The reply parameters have to be disposed by free() when no longer needed.
01450     @param d           The drive where the media is inserted.
01451     @param product_id  Reply: Printable text depicting manufacturer and
01452                        eventually media id.
01453     @param media_code1 Reply: The eventual manufacturer identification as read
01454                        from DVD/BD media or a text "XXmYYsZZf" from CD media
01455                        ATIP lead-in.
01456     @param media_code2 The eventual media id as read from DVD+/BD media or a
01457                        text "XXmYYsZZf" from CD ATIP lead-out.
01458     @param book_type   Book type text for DVD and BD.
01459                        Caution: is NULL with CD, even if return value says ok.
01460     @param flag        Bitfield for control purposes
01461                        bit0= do not escape " _/" (not suitable for
01462                              burn_guess_manufacturer())
01463     @return            1= ok, product_id and media codes are valid,
01464                        0= no product id_available, reply parameters are NULL
01465                       <0= error
01466     @since 0.7.2
01467 */
01468 int burn_disc_get_media_id(struct burn_drive *d,
01469     char **product_id, char **media_code1, char **media_code2,
01470     char **book_type, int flag);
01471 
01472 
01473 /* ts A90904 */
01474 /** Guess the name of a manufacturer by profile number, manufacturer code
01475     and media code. The profile number can be obtained by
01476     burn_disc_get_profile(), the other two parameters can be obtained as
01477     media_code1 and media_code2 by burn_get_media_product_id().
01478     @param profile_no   Profile number (submit -1 if not known)
01479     @param manuf_code   Manufacturer code from media (e.g. "RICOHJPN")
01480     @param media_code   Media ID code from media (e.g. "W11")
01481     @param flag  Bitfield for control purposes, submit 0
01482     @return      Printable text or NULL on memory shortage.
01483                  If the text begins with "Unknown " then no item of the
01484                  manufacturer list matched the codes.
01485                  Dispose by free() when no longer needed.
01486     @since 0.7.2
01487 */
01488 char *burn_guess_manufacturer(int profile_no,
01489                  char *manuf_code, char *media_code, int flag);
01490 
01491 
01492 /** Tells whether a disc can be erased or not
01493     @param d The drive to inquire.
01494     @return Non-zero means erasable
01495 */
01496 int burn_disc_erasable(struct burn_drive *d);
01497 
01498 /** Returns the progress and status of a drive.
01499     @param drive The drive to query busy state for.
01500     @param p Returns the progress of the operation, NULL if you don't care
01501     @return the current status of the drive. See also burn_drive_status.
01502 */
01503 enum burn_drive_status burn_drive_get_status(struct burn_drive *drive,
01504                          struct burn_progress *p);
01505 
01506 /** Creates a write_opts struct for burning to the specified drive.
01507     The returned object must later be freed with burn_write_opts_free().
01508     @param drive The drive to write with
01509     @return The write_opts, NULL on error
01510 */
01511 struct burn_write_opts *burn_write_opts_new(struct burn_drive *drive);
01512 
01513 
01514 /* ts A70901 */
01515 /** Inquires the drive associated with a burn_write_opts object.
01516     @param opts object to inquire
01517     @return pointer to drive
01518     @since 0.4.0
01519 */
01520 struct burn_drive *burn_write_opts_get_drive(struct burn_write_opts *opts);
01521 
01522 
01523 /** Frees a write_opts struct created with burn_write_opts_new
01524     @param opts write_opts to free
01525 */
01526 void burn_write_opts_free(struct burn_write_opts *opts);
01527 
01528 /** Creates a read_opts struct for reading from the specified drive
01529     must be freed with burn_read_opts_free
01530     @param drive The drive to read from
01531     @return The read_opts
01532 */
01533 struct burn_read_opts *burn_read_opts_new(struct burn_drive *drive);
01534 
01535 /** Frees a read_opts struct created with burn_read_opts_new
01536     @param opts write_opts to free
01537 */
01538 void burn_read_opts_free(struct burn_read_opts *opts);
01539 
01540 /** Erase a disc in the drive. The drive must be grabbed successfully BEFORE
01541     calling this functions. Always ensure that the drive reports a status of
01542     BURN_DISC_FULL before calling this function. An erase operation is not
01543     cancellable, as control of the operation is passed wholly to the drive and
01544     there is no way to interrupt it safely.
01545     @param drive The drive with which to erase a disc.
01546                  Only drive roles 1 (MMC) and 5 (stdio random write-only)
01547                  support erasing.
01548     @param fast Nonzero to do a fast erase, where only the disc's headers are
01549                 erased; zero to erase the entire disc.
01550                 With DVD-RW, fast blanking yields media capable only of DAO.
01551 */
01552 void burn_disc_erase(struct burn_drive *drive, int fast);
01553 
01554 
01555 /* ts A70101 - A70417 */
01556 /** Format media for use with libburn. This currently applies to DVD-RW
01557     in state "Sequential Recording" (profile 0014h) which get formatted to
01558     state "Restricted Overwrite" (profile 0013h). DVD+RW can be "de-iced"
01559     by setting bit2 of flag. DVD-RAM and BD-RE may get formatted initially
01560     or re-formatted to adjust their Defect Managment.
01561     This function usually returns while the drive is still in the process
01562     of formatting. The formatting is done, when burn_drive_get_status()
01563     returns BURN_DRIVE_IDLE. This may be immediately after return or may
01564     need several thousand seconds to occur.
01565     @param drive The drive with the disc to format.
01566     @param size The size in bytes to be used with the format command. It should
01567                 be divisible by 32*1024. The effect of this parameter may
01568                 depend on the media profile and on parameter flag.
01569     @param flag Bitfield for control purposes:
01570                 bit0= after formatting, write the given number of zero-bytes
01571                       to the media and eventually perform preliminary closing.
01572                 bit1+2: size mode
01573                    0 = use parameter size as far as it makes sense
01574                    1 = insist in size 0 even if there is a better default known
01575                        (on DVD-RAM or BD-R identical to size mode 0,
01576                         i.e. they never get formatted with payload size 0)
01577                    2 = without bit7: format to maximum available size
01578                        with bit7   : take size from indexed format descriptor
01579                    3 = without bit7: format to default size
01580                        with bit7   : take size from indexed format descriptor
01581                 bit3= -reserved-
01582                 bit4= enforce re-format of (partly) formatted media
01583                 bit5= try to disable eventual defect management
01584         bit6= try to avoid lengthy media certification
01585                 bit7, bit8 to bit15 =
01586                       bit7 enables MMC expert application mode (else libburn
01587                       tries to choose a suitable format type):
01588                       If it is set then bit8 to bit15 contain the index of
01589                       the format to use. See burn_disc_get_formats(),
01590                       burn_disc_get_format_descr().
01591                       Acceptable types are: 0x00, 0x01, 0x10, 0x11, 0x13,
01592                       0x15, 0x26, 0x30, 0x31, 0x32.
01593                       If bit7 is set, then bit4 is set automatically.
01594                bit16= enable POW on blank BD-R
01595     @since 0.3.0
01596 */
01597 void burn_disc_format(struct burn_drive *drive, off_t size, int flag);
01598 
01599 
01600 /* ts A70112 */
01601 /* @since 0.3.0 */
01602 /** Possible formatting status values */
01603 #define BURN_FORMAT_IS_UNFORMATTED 1
01604 #define BURN_FORMAT_IS_FORMATTED   2
01605 #define BURN_FORMAT_IS_UNKNOWN     3
01606 
01607 /* ts A70112 */
01608 /** Inquire the formatting status, the associated sizes and the number of
01609     available formats.  The info is media specific and stems from MMC command
01610     23h READ FORMAT CAPACITY. See mmc5r03c.pdf 6.24 for background details.
01611     Media type can be determined via burn_disc_get_profile().
01612     @param drive The drive with the disc to format.
01613     @param status The current formatting status of the inserted media.
01614                   See BURN_FORMAT_IS_* macros. Note: "unknown" is the
01615                   legal status for quick formatted, yet unwritten DVD-RW.
01616     @param size The size in bytes associated with status.
01617                 unformatted: the maximum achievable size of the media
01618                 formatted:   the currently formatted capacity
01619                 unknown:     maximum capacity of drive or of media
01620     @param bl_sas Additional info "Block Length/Spare Area Size".
01621                   Expected to be constantly 2048 for non-BD media.
01622     @param num_formats The number of available formats. To be used with
01623                        burn_disc_get_format_descr() to obtain such a format
01624                        and eventually with burn_disc_format() to select one.
01625     @return 1 reply is valid , <=0 failure
01626     @since 0.3.0
01627 */
01628 int burn_disc_get_formats(struct burn_drive *drive, int *status, off_t *size,
01629                 unsigned *bl_sas, int *num_formats);
01630 
01631 /* ts A70112 */
01632 /** Inquire parameters of an available media format.
01633     @param drive The drive with the disc to format.
01634     @param index The index of the format item. Beginning with 0 up to reply
01635                  parameter from burn_disc_get_formats() : num_formats - 1
01636     @param type  The format type.  See mmc5r03c.pdf, 6.5, 04h FORMAT UNIT.
01637                  0x00=full, 0x10=CD-RW/DVD-RW full, 0x11=CD-RW/DVD-RW grow,
01638                  0x15=DVD-RW quick, 0x13=DVD-RW quick grow,
01639                  0x26=DVD+RW background, 0x30=BD-RE with spare areas,
01640                  0x31=BD-RE without spare areas
01641     @param size  The maximum size in bytes achievable with this format.
01642     @param tdp   Type Dependent Parameter. See mmc5r03c.pdf.
01643     @return 1 reply is valid , <=0 failure
01644     @since 0.3.0
01645 */
01646 int burn_disc_get_format_descr(struct burn_drive *drive, int index,
01647                 int *type, off_t *size, unsigned *tdp);
01648 
01649 
01650 
01651 /* ts A61109 : this was and is defunct */
01652 /** Read a disc from the drive and write it to an fd pair. The drive must be
01653     grabbed successfully BEFORE calling this function. Always ensure that the
01654     drive reports a status of BURN_DISC_FULL before calling this function.
01655     @param drive The drive from which to read a disc.
01656     @param o The options for the read operation.
01657 */
01658 void burn_disc_read(struct burn_drive *drive, const struct burn_read_opts *o);
01659 
01660 
01661 
01662 /* ts A70222 */
01663 /* @since 0.3.4 */
01664 /** The length of a rejection reasons string for burn_precheck_write() and
01665     burn_write_opts_auto_write_type() .
01666 */
01667 #define BURN_REASONS_LEN 4096
01668 
01669 
01670 /* ts A70219 */
01671 /** Examines a completed setup for burn_disc_write() whether it is permissible
01672     with drive and media. This function is called by burn_disc_write() but
01673     an application might be interested in this check in advance.
01674     @param o The options for the writing operation.
01675     @param disc The descrition of the disc to be created
01676     @param reasons Eventually returns a list of rejection reason statements
01677     @param silent 1= do not issue error messages , 0= report problems
01678     @return 1 ok, -1= no recordable media detected, 0= other failure
01679     @since 0.3.4
01680 */
01681 int burn_precheck_write(struct burn_write_opts *o, struct burn_disc *disc,
01682                         char reasons[BURN_REASONS_LEN], int silent);
01683 
01684 
01685 /** Write a disc in the drive. The drive must be grabbed successfully before
01686     calling this function. Always ensure that the drive reports a status of
01687     BURN_DISC_BLANK ot BURN_DISC_APPENDABLE before calling this function.
01688     Note: write_type BURN_WRITE_SAO is currently not capable of writing a mix
01689     of data and audio tracks. You must use BURN_WRITE_TAO for such sessions.
01690     To be set by burn_write_opts_set_write_type(). 
01691     Note: This function is not suitable for overwriting data in the middle of
01692           a valid data area because it is allowed to append trailing data.
01693           For exact random access overwriting use burn_random_access_write().
01694     Note: After writing it is advised to give up the drive and to grab it again
01695           in order to learn about its view on the new media state.
01696     Note: Before mounting the written media it might be necessary to eject
01697           and reload in order to allow the operating system to notice the new
01698           media state.
01699     @param o The options for the writing operation.
01700     @param disc The struct burn_disc * that described the disc to be created
01701 */
01702 void burn_disc_write(struct burn_write_opts *o, struct burn_disc *disc);
01703 
01704 
01705 /* ts A90227 */
01706 /** Control stream recording during the write run and eventually set the start
01707     LBA for stream recording.
01708     Stream recording is set from struct burn_write_opts when the write run
01709     gets started. See burn_write_opts_set_stream_recording().
01710     The call described here can be used later to override this setting and
01711     to program automatic switching at a given LBA. It also affects subsequent
01712     calls to burn_random_access_write().
01713     @param drive    The drive which performs the write operation.
01714     @param recmode  -1= disable stream recording
01715                      0= leave setting as is
01716                      1= enable stream recording
01717     @param start    The LBA where actual stream recording shall start.
01718                     (0 means unconditional stream recording)
01719     @param flag     Bitfield for control purposes (unused yet, submit 0).
01720     @return         1=success , <=0 failure
01721     @since 0.6.4
01722 */
01723 int burn_drive_set_stream_recording(struct burn_drive *drive, int recmode,
01724                                     int start, int flag);
01725 
01726 /** Cancel an operation on a drive.
01727     This will only work when the drive's busy state is BURN_DRIVE_READING or
01728     BURN_DRIVE_WRITING.
01729     @param drive The drive on which to cancel the current operation.
01730 */
01731 void burn_drive_cancel(struct burn_drive *drive);
01732 
01733 
01734 /* ts A61223 */
01735 /** Inquire whether the most recent asynchronous media job was successful.
01736     This applies to burn_disc_erase(), burn_disc_format(), burn_disc_write().
01737     Reasons for non-success may be: rejection of burn parameters, abort due to
01738     fatal errors during write, blank or format, a call to burn_drive_cancel()
01739     by the application thread.
01740     @param d The drive to inquire.
01741     @return 1=burn seems to have went well, 0=burn failed 
01742     @since 0.2.6
01743 */
01744 int burn_drive_wrote_well(struct burn_drive *d);
01745 
01746 
01747 /** Convert a minute-second-frame (MSF) value to sector count
01748     @param m Minute component
01749     @param s Second component
01750     @param f Frame component
01751     @return The sector count
01752 */
01753 int burn_msf_to_sectors(int m, int s, int f);
01754 
01755 /** Convert a sector count to minute-second-frame (MSF)
01756     @param sectors The sector count
01757     @param m Returns the minute component
01758     @param s Returns the second component
01759     @param f Returns the frame component
01760 */
01761 void burn_sectors_to_msf(int sectors, int *m, int *s, int *f);
01762 
01763 /** Convert a minute-second-frame (MSF) value to an lba
01764     @param m Minute component
01765     @param s Second component
01766     @param f Frame component
01767     @return The lba
01768 */
01769 int burn_msf_to_lba(int m, int s, int f);
01770 
01771 /** Convert an lba to minute-second-frame (MSF)
01772     @param lba The lba
01773     @param m Returns the minute component
01774     @param s Returns the second component
01775     @param f Returns the frame component
01776 */
01777 void burn_lba_to_msf(int lba, int *m, int *s, int *f);
01778 
01779 /** Create a new disc
01780     @return Pointer to a burn_disc object or NULL on failure.
01781 */
01782 struct burn_disc *burn_disc_create(void);
01783 
01784 /** Delete disc and decrease the reference count on all its sessions
01785     @param d The disc to be freed
01786 */
01787 void burn_disc_free(struct burn_disc *d);
01788 
01789 /** Create a new session
01790     @return Pointer to a burn_session object or NULL on failure.
01791  */
01792 struct burn_session *burn_session_create(void);
01793 
01794 /** Free a session (and decrease reference count on all tracks inside)
01795     @param s Session to be freed
01796 */
01797 void burn_session_free(struct burn_session *s);
01798 
01799 /** Add a session to a disc at a specific position, increasing the 
01800     sessions's reference count.
01801     @param d Disc to add the session to
01802     @param s Session to add to the disc
01803     @param pos position to add at (BURN_POS_END is "at the end")
01804     @return 0 for failure, 1 for success
01805 */
01806 int burn_disc_add_session(struct burn_disc *d, struct burn_session *s,
01807               unsigned int pos);
01808 
01809 /** Remove a session from a disc
01810     @param d Disc to remove session from
01811     @param s Session pointer to find and remove
01812 */
01813 int burn_disc_remove_session(struct burn_disc *d, struct burn_session *s);
01814 
01815 
01816 /** Create a track (for TAO recording, or to put in a session) */
01817 struct burn_track *burn_track_create(void);
01818 
01819 /** Free a track
01820     @param t Track to free
01821 */
01822 void burn_track_free(struct burn_track *t);
01823 
01824 /** Add a track to a session at specified position
01825     @param s Session to add to
01826     @param t Track to insert in session
01827     @param pos position to add at (BURN_POS_END is "at the end")
01828     @return 0 for failure, 1 for success
01829 */
01830 int burn_session_add_track(struct burn_session *s, struct burn_track *t,
01831                unsigned int pos);
01832 
01833 /** Remove a track from a session
01834     @param s Session to remove track from
01835     @param t Track pointer to find and remove
01836     @return 0 for failure, 1 for success
01837 */
01838 int burn_session_remove_track(struct burn_session *s, struct burn_track *t);
01839 
01840 
01841 /** Define the data in a track
01842     @param t the track to define
01843     @param offset The lib will write this many 0s before start of data
01844     @param tail The number of extra 0s to write after data
01845     @param pad 1 means the lib should pad the last sector with 0s if the
01846            track isn't exactly sector sized.  (otherwise the lib will
01847            begin reading from the next track)
01848     @param mode data format (bitfield)
01849 */
01850 void burn_track_define_data(struct burn_track *t, int offset, int tail,
01851                 int pad, int mode);
01852 
01853 
01854 /* ts A61024 */
01855 /** Define whether a track shall swap bytes of its input stream.
01856     @param t The track to change
01857     @param swap_source_bytes 0=do not swap, 1=swap byte pairs
01858     @return 1=success , 0=unacceptable value
01859     @since 0.2.6
01860 */
01861 int burn_track_set_byte_swap(struct burn_track *t, int swap_source_bytes);
01862 
01863 
01864 /* ts A90910 */
01865 /** Activates CD XA compatibility modes.
01866     libburn currently writes data only in CD mode 1. Some programs insist in
01867     sending data with additional management bytes. These bytes have to be
01868     stripped in order to make the input suitable for BURN_MODE1.
01869     @param t     The track to manipulate
01870     @param value 0= no conversion
01871                  1= strip 8 byte sector headers of CD-ROM XA mode 2 form 1
01872                     see MMC-5 4.2.3.8.5.3 Block Format for Mode 2 form 1 Data
01873                  all other values are reserved
01874     @return 1=success , 0=unacceptable value
01875     @since 0.7.2
01876 */
01877 int burn_track_set_cdxa_conv(struct burn_track *t, int value);
01878 
01879 
01880 /** Set the ISRC details for a track
01881     @param t The track to change
01882     @param country the 2 char country code. Each character must be
01883            only numbers or letters.
01884     @param owner 3 char owner code. Each character must be only numbers
01885            or letters.
01886     @param year 2 digit year. A number in 0-99 (Yep, not Y2K friendly).
01887     @param serial 5 digit serial number. A number in 0-99999.
01888 */
01889 void burn_track_set_isrc(struct burn_track *t, char *country, char *owner,
01890              unsigned char year, unsigned int serial);
01891 
01892 /** Disable ISRC parameters for a track
01893     @param t The track to change
01894 */
01895 void burn_track_clear_isrc(struct burn_track *t);
01896 
01897 /** Hide the first track in the "pre gap" of the disc
01898     @param s session to change
01899     @param onoff 1 to enable hiding, 0 to disable
01900 */
01901 void burn_session_hide_first_track(struct burn_session *s, int onoff);
01902 
01903 /** Get the drive's disc struct - free when done
01904     @param d drive to query
01905     @return the disc struct or NULL on failure
01906 */
01907 struct burn_disc *burn_drive_get_disc(struct burn_drive *d);
01908 
01909 /** Set the track's data source
01910     @param t The track to set the data source for
01911     @param s The data source to use for the contents of the track
01912     @return An error code stating if the source is ready for use for
01913             writing the track, or if an error occured
01914     
01915 */
01916 enum burn_source_status burn_track_set_source(struct burn_track *t,
01917                           struct burn_source *s);
01918 
01919 
01920 /* ts A70218 */
01921 /** Set a default track size to be used only if the track turns out to be of
01922     unpredictable length and if the effective write type demands a fixed size.
01923     This can be useful to enable write types CD SAO or DVD DAO together with
01924     a track source like stdin. If the track source delivers fewer bytes than
01925     announced then the track will be padded up with zeros.
01926     @param t The track to change
01927     @param size The size to set
01928     @return 0=failure 1=sucess
01929     @since 0.3.4
01930 */
01931 int burn_track_set_default_size(struct burn_track *t, off_t size);
01932 
01933 /** Free a burn_source (decrease its refcount and maybe free it)
01934     @param s Source to free
01935 */
01936 void burn_source_free(struct burn_source *s);
01937 
01938 /** Creates a data source for an image file (and maybe subcode file)
01939     @param path The file address for the main channel payload.
01940     @param subpath Eventual address for subchannel data. Only used in exotic
01941                    raw write modes. Submit NULL for normal tasks.
01942     @return Pointer to a burn_source object, NULL indicates failure
01943 */
01944 struct burn_source *burn_file_source_new(const char *path,
01945                      const char *subpath);
01946 
01947 
01948 /* ts A91122 : An interface to open(O_DIRECT) or similar OS tricks. */
01949 
01950 /** Opens a file with eventual acceleration preparations which may depend
01951     on the operating system and on compile time options of libburn.
01952     You may use this call instead of open(2) for opening file descriptors
01953     which shall be handed to burn_fd_source_new().
01954     This should only be done for tracks with BURN_BLOCK_MODE1 (2048 bytes
01955     per block).
01956 
01957     If you use this call then you MUST allocate the buffers which you use
01958     with read(2) by call burn_os_alloc_buffer(). Read sizes MUST be a multiple
01959     of a safe buffer amount. Else you risk that track data get altered during
01960     transmission.
01961     burn_disk_write() will allocate a suitable read/write buffer for its own
01962     operations. A fifo created by burn_fifo_source_new() will allocate
01963     suitable memory for its buffer if called with flag bit0 and a multiple
01964     of a safe buffer amount. 
01965     @param path       The file address to open
01966     @param open_flags The flags as of man 2 open. Normally just O_RDONLY.
01967     @param flag       Bitfield for control purposes (unused yet, submit 0).
01968     @return           A file descriptor as of open(2). Finally to be disposed
01969                       by close(2).
01970                       -1 indicates failure.
01971     @since 0.7.4
01972 */
01973 int burn_os_open_track_src(char *path, int open_flags, int flag);
01974 
01975 /** Allocate a memory area that is suitable for reading with a file descriptor
01976     opened by burn_os_open_track_src().
01977     @param amount     Number of bytes to allocate. This should be a multiple
01978                       of the operating system's i/o block size. 32 KB is
01979                       guaranteed by libburn to be safe.
01980     @param flag       Bitfield for control purposes (unused yet, submit 0).
01981     @return           The address of the allocated memory, or NULL on failure.
01982                       A non-NULL return value has finally to be disposed via
01983                       burn_os_free_buffer().
01984     @since 0.7.4
01985 */
01986 void *burn_os_alloc_buffer(size_t amount, int flag);
01987 
01988 /** Dispose a memory area which was obtained by burn_os_alloc_buffer(),
01989     @param buffer     Memory address to be freed.
01990     @param amount     The number of bytes which was allocated at that
01991                       address.
01992     @param flag       Bitfield for control purposes (unused yet, submit 0).
01993     @return           1 success , <=0 failure
01994     @since 0.7.4
01995 */
01996 int burn_os_free_buffer(void *buffer, size_t amount, int flag);
01997 
01998 
01999 /** Creates a data source for an image file (a track) from an open
02000     readable filedescriptor, an eventually open readable subcodes file
02001     descriptor and eventually a fixed size in bytes.
02002     @param datafd The source of data.
02003     @param subfd The eventual source of subchannel data. Only used in exotic
02004                  raw write modes. Submit -1 for normal tasks.
02005     @param size The eventual fixed size of eventually both fds. 
02006                 If this value is 0, the size will be determined from datafd.
02007     @return Pointer to a burn_source object, NULL indicates failure
02008 */
02009 struct burn_source *burn_fd_source_new(int datafd, int subfd, off_t size);
02010 
02011 
02012 /* ts B00922 */
02013 /** Creates an offset source which shall provide a byte interval of a stream
02014     to its consumer. It is supposed to be chain-linked with other offset
02015     sources which serve neighboring consumers. The chronological sequence
02016     of consumers and the sequence of offset sources must match. The intervals
02017     of the sources must not overlap.
02018 
02019     A chain of these burn_source objects may be used to feed multiple tracks
02020     from one single stream of input bytes.
02021     Each of the offset sources will skip the bytes up to its start address and
02022     provide the prescribed number of bytes to the track. Skipping takes into
02023     respect the bytes which have been processed by eventual predecessors in the
02024     chain.
02025     Important: It is not allowed to free an offset source before its successor
02026                has ended its work. Best is to keep them all until all tracks
02027                are done.
02028 
02029     @param inp   The burn_source object from which to read stream data.
02030                  E.g. created by burn_file_source_new().
02031     @param prev  The eventual offset source object which shall read data from
02032                  inp before the new offset source will begin its own work.
02033                  This must either be a result of  burn_offst_source_new()  or
02034                  it must be NULL.
02035     @param start The byte address where to start reading bytes for the
02036                  consumer. inp bytes may get skipped to reach this address.
02037     @param size  The number of bytes to be delivered to the consumer.
02038     @param flag  Bitfield for control purposes (unused yet, submit 0).
02039     @return      Pointer to a burn_source object, later to be freed by
02040                  burn_source_free(). NULL indicates failure.
02041     @since 0.8.8
02042 */
02043 struct burn_source *burn_offst_source_new(
02044                 struct burn_source *inp, struct burn_source *prev,
02045                 off_t start, off_t size, int flag);
02046 
02047 /* ts A70930 */
02048 /** Creates a fifo which acts as proxy for an already existing data source.
02049     The fifo provides a ring buffer which shall smoothen the data stream
02050     between burn_source and writer thread. Each fifo serves only for one
02051     data source and gets attached to one track as its only data source
02052     by burn_track_set_source().
02053     A fifo starts its life in "standby" mode with no buffer space allocated.
02054     As soon as its track requires bytes, the fifo establishes a worker thread
02055     and allocates its buffer. After input has ended and all buffer content is
02056     consumed, the buffer space gets freed and the worker thread ends.
02057     This happens asynchronously. So expect two buffers and worker threads to
02058     exist for a short time between tracks. Be modest in your size demands if
02059     multiple tracks are to be expected. 
02060     @param inp        The burn_source for which the fifo shall act as proxy.
02061                       It can be disposed by burn_source_free() immediately
02062                       after this call.
02063     @param chunksize  The size in bytes of a chunk.
02064                       Use 2048 for sources suitable for BURN_BLOCK_MODE1,
02065                       2352 for sources which deliver for BURN_BLOCK_AUDIO,
02066                       2056 for sources which shall get treated by 
02067                       burn_track_set_cdxa_conv(track, 1).
02068                       Some variations of burn_source might work only with
02069                       a particular chunksize. E.g. libisofs demands 2048.
02070     @param chunks     The number of chunks to be allocated in ring buffer.
02071                       This value must be >= 2.
02072     @param flag       Bitfield for control purposes:
02073                       bit0= The read method of inp is capable of delivering
02074                             arbitrary amounts of data per call. Not only one
02075                             sector.
02076                             Suitable for inp from burn_file_source_new()
02077                             and burn_fd_source_new() if not the fd has
02078                             exotic limitations on read size.
02079                             You MUST use this on inp which uses an fd opened
02080                             with burn_os_open_track_src().
02081                             Better do not use with other inp types.
02082                             @since 0.7.4
02083     @return           A pointer to the newly created burn_source.
02084                       Later both burn_sources, inp and the returned fifo, have
02085                       to be disposed by calling burn_source_free() for each.
02086                       inp can be freed immediately, the returned fifo may be
02087                       kept as handle for burn_fifo_inquire_status().
02088     @since 0.4.0
02089 */
02090 struct burn_source *burn_fifo_source_new(struct burn_source *inp,
02091                                          int chunksize, int chunks, int flag);
02092 
02093 /* ts A71003 */
02094 /** Inquires state and fill parameters of a fifo burn_source which was created
02095     by burn_fifo_source_new() . Do not use with other burn_source variants.
02096     @param fifo  The fifo object to inquire
02097     @param size  The total size of the fifo
02098     @param free_bytes  The current free capacity of the fifo
02099     @param status_text  Returns a pointer to a constant text, see below
02100     @return  <0 reply invalid, >=0 fifo status code:
02101              bit0+1=input status, bit2=consumption status, i.e:
02102              0="standby"   : data processing not started yet
02103              1="active"    : input and consumption are active
02104              2="ending"    : input has ended without error
02105              3="failing"   : input had error and ended,
02106              4="unused"    : ( consumption has ended before processing start )
02107              5="abandoned" : consumption has ended prematurely
02108              6="ended"     : consumption has ended without input error
02109              7="aborted"   : consumption has ended after input error
02110     @since 0.4.0
02111 */
02112 int burn_fifo_inquire_status(struct burn_source *fifo, int *size, 
02113                             int *free_bytes, char **status_text);
02114 
02115 /* ts A91125 */
02116 /** Inquire various counters which reflect the fifo operation.
02117     @param fifo              The fifo object to inquire
02118     @param total_min_fill    The minimum number of bytes in the fifo. Beginning
02119                              from the moment when fifo consumption is enabled.
02120     @param interval_min_fill The minimum byte number beginning from the moment
02121                              when fifo consumption is enabled or from the
02122                              most recent moment when burn_fifo_next_interval()
02123                              was called.
02124     @param put_counter       The number of data transactions into the fifo.
02125     @param get_counter       The number of data transactions out of the fifo.
02126     @param empty_counter     The number of times the fifo was empty.
02127     @param full_counter      The number of times the fifo was full.
02128     @since 0.7.4
02129 */
02130 void burn_fifo_get_statistics(struct burn_source *fifo,
02131                              int *total_min_fill, int *interval_min_fill,
02132                              int *put_counter, int *get_counter,
02133                              int *empty_counter, int *full_counter);
02134 
02135 /* ts A91125 */
02136 /** Inquire the fifo minimum fill counter for intervals and reset that counter.
02137     @param fifo              The fifo object to inquire
02138     @param interval_min_fill The minimum number of bytes in the fifo. Beginning
02139                              from the moment when fifo consumption is enabled
02140                              or from the most recent moment when
02141                              burn_fifo_next_interval() was called.
02142     @since 0.7.4
02143 */
02144 void burn_fifo_next_interval(struct burn_source *fifo, int *interval_min_fill);
02145 
02146 /* ts A80713 */
02147 /** Obtain a preview of the first input data of a fifo which was created
02148     by burn_fifo_source_new(). The data will later be delivered normally to
02149     the consumer track of the fifo.
02150     bufsize may not be larger than the fifo size (chunk_size * chunks) - 32k.
02151     This call will succeed only if data consumption by the track has not
02152     started yet, i.e. best before the call to burn_disc_write().
02153     It will start the worker thread of the fifo with the expectable side
02154     effects on the external data source. Then it waits either until enough
02155     data have arrived or until it becomes clear that this will not happen.
02156     The call may be repeated with increased bufsize. It will always yield
02157     the bytes beginning from the first one in the fifo.
02158     @param fifo     The fifo object to inquire resp. start
02159     @param buf      Pointer to memory of at least bufsize bytes where to
02160                     deliver the peeked data.
02161     @param bufsize  Number of bytes to peek from the start of the fifo data
02162     @param flag     Bitfield for control purposes (unused yet, submit 0).
02163     @return <0 on severe error, 0 if not enough data, 1 if bufsize bytes read
02164     @since 0.5.0
02165 */
02166 int burn_fifo_peek_data(struct burn_source *fifo, char *buf, int bufsize,
02167                         int flag);
02168 
02169 /* ts A91125 */
02170 /** Start the fifo worker thread and wait either until the requested number
02171     of bytes have arrived or until it becomes clear that this will not happen.
02172     Filling will go on asynchronously after burn_fifo_fill() returned.
02173     This call and burn_fifo_peek_data() do not disturb each other.
02174     @param fifo     The fifo object to start
02175     @param fill     Number of bytes desired. Expect to get return 1 if 
02176                     at least fifo size - 32k were read.
02177     @param flag     Bitfield for control purposes.
02178                     bit0= fill fifo to maximum size
02179     @return <0 on severe error, 0 if not enough data,
02180              1 if desired amount or fifo full
02181     @since 0.7.4
02182 */
02183 int burn_fifo_fill(struct burn_source *fifo, int fill, int flag);
02184 
02185 
02186 /* ts A70328 */
02187 /** Sets a fixed track size after the data source object has already been
02188     created.
02189     @param t The track to operate on
02190     @param size the number of bytes to use as track size
02191     @return <=0 indicates failure , >0 success
02192     @since 0.3.6
02193 */
02194 int burn_track_set_size(struct burn_track *t, off_t size);
02195 
02196 
02197 /** Tells how long a track will be on disc
02198     >>> NOTE: Not reliable with tracks of undefined length
02199 */
02200 int burn_track_get_sectors(struct burn_track *);
02201 
02202 
02203 /* ts A61101 */
02204 /** Tells how many source bytes have been read and how many data bytes have
02205     been written by the track during burn.
02206     @param t The track to inquire
02207     @param read_bytes Number of bytes read from the track source
02208     @param written_bytes Number of bytes written to track
02209     @since 0.2.6
02210 */
02211 int burn_track_get_counters(struct burn_track *t, 
02212                             off_t *read_bytes, off_t *written_bytes);
02213 
02214 
02215 /** Sets drive read and write speed
02216     Note: "k" is 1000, not 1024. 1xCD = 176.4 k/s, 1xDVD = 1385 k/s.
02217           Fractional speeds should be rounded up. Like 4xCD = 706.
02218     @param d The drive to set speed for
02219     @param read Read speed in k/s (0 is max, -1 is min).
02220     @param write Write speed in k/s (0 is max, -1 is min). 
02221 */
02222 void burn_drive_set_speed(struct burn_drive *d, int read, int write);
02223 
02224 
02225 /* ts A70711 */
02226 /** Controls the behavior with writing when the drive buffer is suspected to
02227     be full. To check and wait for enough free buffer space before writing
02228     will move the task of waiting from the operating system's device driver
02229     to libburn. While writing is going on and waiting is enabled, any write
02230     operation will be checked whether it will fill the drive buffer up to
02231     more than max_percent. If so, then waiting will happen until the buffer
02232     fill is predicted with at most min_percent.
02233     Thus: if min_percent < max_percent then transfer rate will oscillate. 
02234     This may allow the driver to operate on other devices, e.g. a disk from
02235     which to read the input for writing. On the other hand, this checking might
02236     reduce maximum throughput to the drive or even get misled by faulty buffer
02237     fill replies from the drive.
02238     If a setting parameter is < 0, then this setting will stay unchanged
02239     by the call.
02240     Known burner or media specific pitfalls:
02241     To have max_percent larger than the burner's best reported buffer fill has
02242     the same effect as min_percent==max_percent. Some burners do not report
02243     their full buffer with all media types. Some are not suitable because
02244     they report their buffer fill with delay.
02245     @param d The drive to control
02246     @param enable 0= disable , 1= enable waiting , (-1 = do not change setting)
02247     @param min_usec Shortest possible sleeping period (given in micro seconds)
02248     @param max_usec Longest possible sleeping period (given in micro seconds)
02249     @param timeout_sec If a single write has to wait longer than this number
02250                        of seconds, then waiting gets disabled and mindless
02251                        writing starts. A value of 0 disables this timeout.
02252     @param min_percent Minimum of desired buffer oscillation: 25 to 100
02253     @param max_percent Maximum of desired buffer oscillation: 25 to 100
02254     @return 1=success , 0=failure
02255     @since 0.3.8
02256 */
02257 int burn_drive_set_buffer_waiting(struct burn_drive *d, int enable,
02258                                 int min_usec, int max_usec, int timeout_sec,
02259                                 int min_percent, int max_percent);
02260 
02261 
02262 /* these are for my debugging, they will disappear */
02263 void burn_structure_print_disc(struct burn_disc *d);
02264 void burn_structure_print_session(struct burn_session *s);
02265 void burn_structure_print_track(struct burn_track *t);
02266 
02267 /** Sets the write type for the write_opts struct.
02268     Note: write_type BURN_WRITE_SAO is currently not capable of writing a mix
02269     of data and audio tracks. You must use BURN_WRITE_TAO for such sessions.
02270     @param opts The write opts to change
02271     @param write_type The write type to use
02272     @param block_type The block type to use
02273     @return Returns 1 on success and 0 on failure.
02274 */
02275 int burn_write_opts_set_write_type(struct burn_write_opts *opts,
02276                    enum burn_write_types write_type,
02277                    int block_type);
02278 
02279 
02280 /* ts A70207 */
02281 /** As an alternative to burn_write_opts_set_write_type() this function tries
02282     to find a suitable write type and block type for a given write job
02283     described by opts and disc. To be used after all other setups have been
02284     made, i.e. immediately before burn_disc_write().
02285     @param opts The nearly complete write opts to change
02286     @param disc The already composed session and track model
02287     @param reasons This text string collects reasons for decision resp. failure
02288     @param flag Bitfield for control purposes:
02289                 bit0= do not choose type but check the one that is already set
02290                 bit1= do not issue error messages via burn_msgs queue
02291                       (is automatically set with bit0)
02292     @return Chosen write type. BURN_WRITE_NONE on failure.
02293     @since 0.3.2
02294 */
02295 enum burn_write_types burn_write_opts_auto_write_type(
02296           struct burn_write_opts *opts, struct burn_disc *disc,
02297           char reasons[BURN_REASONS_LEN], int flag);
02298 
02299 
02300 /** Supplies toc entries for writing - not normally required for cd mastering
02301     @param opts The write opts to change
02302     @param count The number of entries
02303     @param toc_entries
02304 */
02305 void burn_write_opts_set_toc_entries(struct burn_write_opts *opts,
02306                      int count,
02307                      struct burn_toc_entry *toc_entries);
02308 
02309 /** Sets the session format for a disc
02310     @param opts The write opts to change
02311     @param format The session format to set
02312 */
02313 void burn_write_opts_set_format(struct burn_write_opts *opts, int format);
02314 
02315 /** Sets the simulate value for the write_opts struct . 
02316     This corresponds to the Test Write bit in MMC mode page 05h. Several media
02317     types do not support this. See struct burn_multi_caps.might_simulate for
02318     actual availability of this feature. 
02319     If the media is suitable, the drive will perform burn_disc_write() as a
02320     simulation instead of effective write operations. This means that the
02321     media content and burn_disc_get_status() stay unchanged.
02322     Note: With stdio-drives, the target file gets eventually created, opened,
02323           lseeked, and closed, but not written. So there are effects on it.
02324     Warning: Call burn_random_access_write() will never do simulation because
02325              it does not get any burn_write_opts.
02326     @param opts The write opts to change
02327     @param sim  Non-zero enables simulation, 0 enables real writing
02328     @return Returns 1 on success and 0 on failure.
02329 */
02330 int  burn_write_opts_set_simulate(struct burn_write_opts *opts, int sim);
02331 
02332 /** Controls buffer underrun prevention
02333     @param opts The write opts to change
02334     @param underrun_proof if non-zero, buffer underrun protection is enabled
02335     @return Returns 1 on success and 0 on failure.
02336 */
02337 int burn_write_opts_set_underrun_proof(struct burn_write_opts *opts,
02338                        int underrun_proof);
02339 
02340 /** Sets whether to use opc or not with the write_opts struct
02341     @param opts The write opts to change
02342     @param opc If non-zero, optical power calibration will be performed at
02343                start of burn
02344      
02345 */
02346 void burn_write_opts_set_perform_opc(struct burn_write_opts *opts, int opc);
02347 
02348 void burn_write_opts_set_has_mediacatalog(struct burn_write_opts *opts, int has_mediacatalog);
02349 
02350 void burn_write_opts_set_mediacatalog(struct burn_write_opts *opts, unsigned char mediacatalog[13]);
02351 
02352 
02353 /* ts A61106 */
02354 /** Sets the multi flag which eventually marks the emerging session as not
02355     being the last one and thus creating a BURN_DISC_APPENDABLE media.
02356     Note: DVD-R[W] in write mode BURN_WRITE_SAO are not capable of this.
02357           DVD-R DL are not capable of this at all.
02358           libburn will refuse to write if burn_write_opts_set_multi() is
02359           enabled under such conditions.
02360     @param opts The option object to be manipulated
02361     @param multi 1=media will be appendable, 0=media will be closed (default) 
02362     @since 0.2.6
02363 */
02364 void burn_write_opts_set_multi(struct burn_write_opts *opts, int multi);
02365 
02366 
02367 /* ts A61222 */
02368 /** Sets a start address for writing to media and write modes which allow to
02369     choose this address at all (for now: DVD+RW, DVD-RAM, formatted DVD-RW).
02370     now). The address is given in bytes. If it is not -1 then a write run
02371     will fail if choice of start address is not supported or if the block
02372     alignment of the address is not suitable for media and write mode.
02373     Alignment to 32 kB blocks is supposed to be safe with DVD media.
02374     Call burn_disc_get_multi_caps() can obtain the necessary media info. See
02375     resulting struct burn_multi_caps elements .start_adr , .start_alignment ,
02376     .start_range_low , .start_range_high .
02377     @param opts The write opts to change
02378     @param value The address in bytes (-1 = start at default address)
02379     @since 0.3.0
02380 */
02381 void burn_write_opts_set_start_byte(struct burn_write_opts *opts, off_t value);
02382 
02383 
02384 /* ts A70213 */
02385 /** Caution: still immature and likely to change. Problems arose with
02386     sequential DVD-RW on one drive.
02387 
02388     Controls whether the whole available space of the media shall be filled up
02389     by the last track of the last session.
02390     @param opts The write opts to change
02391     @param fill_up_media If 1 : fill up by last track, if 0 = do not fill up
02392     @since 0.3.4
02393 */
02394 void burn_write_opts_set_fillup(struct burn_write_opts *opts,
02395                                 int fill_up_media);
02396 
02397 
02398 /* ts A70303 */
02399 /** Eventually makes libburn ignore the failure of some conformance checks:
02400     - the check whether CD write+block type is supported by the drive
02401     - the check whether the media profile supports simulated burning 
02402     @param opts The write opts to change
02403     @param use_force 1=ignore above checks, 0=refuse work on failed check
02404     @since 0.3.4
02405 */
02406 void burn_write_opts_set_force(struct burn_write_opts *opts, int use_force);
02407 
02408 
02409 /* ts A80412 */
02410 /** Eventually makes use of the more modern write command AAh WRITE12 and
02411     sets the Streaming bit. With DVD-RAM and BD this can override the
02412     traditional slowdown to half nominal speed. But if it speeds up writing
02413     then it also disables error management and correction. Weigh your
02414     priorities. This affects the write operations of burn_disc_write()
02415     and subsequent calls of burn_random_access_write().
02416     @param opts The write opts to change
02417     @param value  0=use 2Ah WRITE10, 1=use AAh WRITE12 with Streaming bit
02418                   @since 0.6.4:
02419                   >=16 use WRITE12 but not before the LBA given by value
02420     @since 0.4.6
02421 */
02422 void burn_write_opts_set_stream_recording(struct burn_write_opts *opts, 
02423                                          int value);
02424 
02425 /* ts A91115 */
02426 /** Overrides the write chunk size for DVD and BD media which is normally
02427     determined according to media type and setting of stream recording.
02428     A chunk size of 64 KB may improve throughput with bus systems which show
02429     latency problems.
02430     @param opts The write opts to change
02431     @param obs  Number of bytes which shall be sent by a single write command.
02432                 0 means automatic size, 32768 and 65336 are the only other
02433                 accepted sizes for now.
02434     @since 0.7.4
02435 */
02436 void burn_write_opts_set_dvd_obs(struct burn_write_opts *opts, int obs);
02437 
02438 /* ts A91115 */
02439 /** Sets the rythm by which stdio pseudo drives force their output data to
02440     be consumed by the receiving storage device. This forcing keeps the memory
02441     from being clogged with lots of pending data for slow devices.
02442     @param opts   The write opts to change
02443     @param rythm  Number of 2KB output blocks after which fsync(2) is
02444                   performed. -1 means no fsync(), 0 means default,
02445                   elsewise the value must be >= 32.
02446                   Default is currently 8192 = 16 MB.
02447     @since 0.7.4
02448 */
02449 void burn_write_opts_set_stdio_fsync(struct burn_write_opts *opts, int rythm);
02450 
02451 
02452 /** Sets whether to read in raw mode or not
02453     @param opts The read opts to change
02454     @param raw_mode If non-zero, reading will be done in raw mode, so that everything in the data tracks on the
02455             disc is read, including headers.
02456 */
02457 void burn_read_opts_set_raw(struct burn_read_opts *opts, int raw_mode);
02458 
02459 /** Sets whether to report c2 errors or not 
02460     @param opts The read opts to change
02461     @param c2errors If non-zero, report c2 errors.
02462 */
02463 void burn_read_opts_set_c2errors(struct burn_read_opts *opts, int c2errors);
02464 
02465 /** Sets whether to read subcodes from audio tracks or not
02466     @param opts The read opts to change
02467     @param subcodes_audio If non-zero, read subcodes from audio tracks on the disc.
02468 */
02469 void burn_read_opts_read_subcodes_audio(struct burn_read_opts *opts,
02470                     int subcodes_audio);
02471 
02472 /** Sets whether to read subcodes from data tracks or not 
02473     @param opts The read opts to change
02474     @param subcodes_data If non-zero, read subcodes from data tracks on the disc.
02475 */
02476 void burn_read_opts_read_subcodes_data(struct burn_read_opts *opts,
02477                        int subcodes_data);
02478 
02479 /** Sets whether to recover errors if possible
02480     @param opts The read opts to change
02481     @param hardware_error_recovery If non-zero, attempt to recover errors if possible.
02482 */
02483 void burn_read_opts_set_hardware_error_recovery(struct burn_read_opts *opts,
02484                         int hardware_error_recovery);
02485 
02486 /** Sets whether to report recovered errors or not
02487     @param opts The read opts to change
02488     @param report_recovered_errors If non-zero, recovered errors will be reported.
02489 */
02490 void burn_read_opts_report_recovered_errors(struct burn_read_opts *opts,
02491                         int report_recovered_errors);
02492 
02493 /** Sets whether blocks with unrecoverable errors should be read or not
02494     @param opts The read opts to change
02495     @param transfer_damaged_blocks If non-zero, blocks with unrecoverable errors will still be read.
02496 */
02497 void burn_read_opts_transfer_damaged_blocks(struct burn_read_opts *opts,
02498                         int transfer_damaged_blocks);
02499 
02500 /** Sets the number of retries to attempt when trying to correct an error
02501     @param opts The read opts to change
02502     @param hardware_error_retries The number of retries to attempt when correcting an error.
02503 */
02504 void burn_read_opts_set_hardware_error_retries(struct burn_read_opts *opts,
02505                            unsigned char hardware_error_retries);
02506 
02507 
02508 /* ts A90815 */
02509 /** Gets the list of profile codes supported by the drive.
02510     Profiles depict the feature sets which constitute media types. For
02511     known profile codes and names see burn_disc_get_profile().
02512     @param d            is the drive to query
02513     @param num_profiles returns the number of supported profiles
02514     @param profiles     returns the profile codes
02515     @param is_current   returns the status of the corresponding profile code:
02516                         1= current, i.e. the matching media is loaded
02517                         0= not current, i.e. the matching media is not loaded
02518     @return  always 1 for now
02519     @since 0.7.0
02520 */
02521 int burn_drive_get_all_profiles(struct burn_drive *d, int *num_profiles,
02522                                 int profiles[64], char is_current[64]);
02523 
02524 
02525 /* ts A90815 */
02526 /** Obtains the profile name associated with a profile code.
02527     @param profile_code the profile code to be translated
02528     @param name         returns the profile name (e.g. "DVD+RW")  
02529     @return             1= known profile code , 0= unknown profile code
02530     @since 0.7.0
02531 */
02532 int burn_obtain_profile_name(int profile_code, char name[80]);
02533 
02534 
02535 /** Gets the maximum write speed for a drive and eventually loaded media.
02536     The return value might change by the media type of already loaded media,
02537     again by call burn_drive_grab() and again by call burn_disc_read_atip(). 
02538     @param d Drive to query
02539     @return Maximum write speed in K/s
02540 */
02541 int burn_drive_get_write_speed(struct burn_drive *d);
02542 
02543 
02544 /* ts A61021 */
02545 /** Gets the minimum write speed for a drive and eventually loaded media.
02546     The return value might change by the media type of already loaded media, 
02547     again by call burn_drive_grab() and again by call burn_disc_read_atip().
02548     @param d Drive to query
02549     @return Minimum write speed in K/s
02550     @since 0.2.6
02551 */
02552 int burn_drive_get_min_write_speed(struct burn_drive *d);
02553 
02554 
02555 /** Gets the maximum read speed for a drive
02556     @param d Drive to query
02557     @return Maximum read speed in K/s
02558 */
02559 int burn_drive_get_read_speed(struct burn_drive *d);
02560 
02561 
02562 /* ts A61226 */
02563 /** Obtain a copy of the current speed descriptor list. The drive's list gets
02564     updated on various occasions such as burn_drive_grab() but the copy
02565     obtained here stays untouched. It has to be disposed via
02566     burn_drive_free_speedlist() when it is not longer needed. Speeds
02567     may appear several times in the list. The list content depends much on
02568     drive and media type. It seems that .source == 1 applies mostly to CD media
02569     whereas .source == 2 applies to any media.
02570     @param d Drive to query
02571     @param speed_list The copy. If empty, *speed_list gets returned as NULL.
02572     @return 1=success , 0=list empty , <0 severe error
02573     @since 0.3.0
02574 */
02575 int burn_drive_get_speedlist(struct burn_drive *d,
02576                              struct burn_speed_descriptor **speed_list);
02577 
02578 /* ts A70713 */
02579 /** Look up the fastest speed descriptor which is not faster than the given
02580     speed_goal. If it is 0, then the fastest one is chosen among the
02581     descriptors with the highest end_lba. If it is -1 then the slowest speed
02582     descriptor is chosen regardless of end_lba. Parameter flag decides whether
02583     the speed goal means write speed or read speed.
02584     @param d Drive to query
02585     @param speed_goal Upper limit for speed,
02586                       0=search for maximum speed , -1 search for minimum speed
02587     @param best_descr Result of the search, NULL if no match
02588     @param flag Bitfield for control purposes
02589                 bit0= look for best read speed rather than write speed
02590                 bit1= look for any source type (else look for source==2 first
02591                   and for any other source type only with CD media)
02592     @return >0 indicates a valid best_descr, 0 = no valid best_descr
02593     @since 0.3.8
02594 */
02595 int burn_drive_get_best_speed(struct burn_drive *d, int speed_goal,
02596                         struct burn_speed_descriptor **best_descr, int flag);
02597 
02598 
02599 /* ts A61226 */
02600 /** Dispose a speed descriptor list copy which was obtained by
02601     burn_drive_get_speedlist().
02602     @param speed_list The list copy. *speed_list gets set to NULL.
02603     @return 1=list disposed , 0= *speedlist was already NULL
02604     @since 0.3.0
02605 */
02606 int burn_drive_free_speedlist(struct burn_speed_descriptor **speed_list);
02607 
02608 
02609 /* ts A70203 */
02610 /* @since 0.3.2 */
02611 /** The reply structure for burn_disc_get_multi_caps()
02612 */
02613 struct burn_multi_caps {
02614 
02615     /* Multi-session capability allows to keep the media appendable after
02616        writing a session. It also guarantees that the drive will be able
02617        to predict and use the appropriate Next Writeable Address to place
02618        the next session on the media without overwriting the existing ones.
02619        It does not guarantee that the selected write type is able to do
02620        an appending session after the next session. (E.g. CD SAO is capable
02621        of multi-session by keeping a disc appendable. But .might_do_sao
02622        will be 0 afterwards, when checking the appendable media.)
02623         1= media may be kept appendable by burn_write_opts_set_multi(o,1)
02624         0= media will not be appendable
02625     */
02626     int multi_session;
02627 
02628     /* Multi-track capability allows to write more than one track source
02629        during a single session. The written tracks can later be found in
02630        libburn's TOC model with their start addresses and sizes.
02631         1= multiple tracks per session are allowed
02632         0= only one track per session allowed
02633     */
02634     int multi_track;
02635 
02636     /* Start-address capability allows to set a non-zero address with
02637        burn_write_opts_set_start_byte(). Eventually this has to respect
02638        .start_alignment and .start_range_low, .start_range_high in this
02639        structure.
02640         1= non-zero start address is allowed
02641             0= only start address 0 is allowed (to depict the drive's own idea
02642                about the appropriate write start)
02643     */
02644     int start_adr;
02645 
02646     /** The alignment for start addresses.
02647         ( start_address % start_alignment ) must be 0.
02648     */
02649     off_t start_alignment;
02650 
02651     /** The lowest permissible start address.
02652     */
02653     off_t start_range_low;
02654 
02655     /** The highest addressable start address.
02656     */
02657     off_t start_range_high;
02658 
02659     /** Potential availability of write modes
02660          4= needs no size prediction, not to be chosen automatically
02661          3= needs size prediction, not to be chosen automatically
02662          2= available, no size prediction necessary
02663          1= available, needs exact size prediction
02664          0= not available
02665         With CD media (profiles 0x09 and 0x0a) check also the elements
02666         *_block_types of the according write mode.
02667     */
02668     int might_do_tao;
02669     int might_do_sao;
02670     int might_do_raw;
02671 
02672     /** Generally advised write mode.
02673         Not necessarily the one chosen by burn_write_opts_auto_write_type()
02674         because the burn_disc structure might impose particular demands.
02675     */
02676     enum burn_write_types advised_write_mode;
02677 
02678     /** Write mode as given by parameter wt of burn_disc_get_multi_caps().
02679     */
02680     enum burn_write_types selected_write_mode;
02681 
02682     /** Profile number which was current when the reply was generated */
02683     int current_profile;
02684 
02685     /** Wether the current profile indicates CD media. 1=yes, 0=no */
02686     int current_is_cd_profile;
02687 
02688         /* ts A70528 */
02689         /* @since 0.3.8 */
02690     /** Wether the current profile is able to perform simulated write */
02691     int might_simulate;
02692 };
02693 
02694 /** Allocates a struct burn_multi_caps (see above) and fills it with values
02695     which are appropriate for the drive and the loaded media. The drive
02696     must be grabbed for this call. The returned structure has to be disposed
02697     via burn_disc_free_multi_caps() when no longer needed.
02698     @param d The drive to inquire
02699     @param wt With BURN_WRITE_NONE the best capabilities of all write modes
02700               get returned. If set to a write mode like BURN_WRITE_SAO the
02701               capabilities with that particular mode are returned and the
02702               return value is 0 if the desired mode is not possible.
02703     @param caps returns the info structure
02704     @param flag Bitfield for control purposes (unused yet, submit 0)
02705     @return < 0 : error , 0 : writing seems impossible , 1 : writing possible 
02706     @since 0.3.2
02707 */
02708 int burn_disc_get_multi_caps(struct burn_drive *d, enum burn_write_types wt,
02709              struct burn_multi_caps **caps, int flag);
02710 
02711 /** Removes from memory a multi session info structure which was returned by
02712     burn_disc_get_multi_caps(). The pointer *caps gets set to NULL.
02713     @param caps the info structure to dispose (note: pointer to pointer)
02714     @return 0 : *caps was already NULL, 1 : memory object was disposed
02715     @since 0.3.2
02716 */
02717 int burn_disc_free_multi_caps(struct burn_multi_caps **caps);
02718 
02719 
02720 /** Gets a copy of the toc_entry structure associated with a track
02721     @param t Track to get the entry from
02722     @param entry Struct for the library to fill out
02723 */
02724 void burn_track_get_entry(struct burn_track *t, struct burn_toc_entry *entry);
02725 
02726 /** Gets a copy of the toc_entry structure associated with a session's lead out
02727     @param s Session to get the entry from
02728     @param entry Struct for the library to fill out
02729 */
02730 void burn_session_get_leadout_entry(struct burn_session *s,
02731                                     struct burn_toc_entry *entry);
02732 
02733 /** Gets an array of all the sessions for the disc
02734     THIS IS NO LONGER VALID AFTER YOU ADD OR REMOVE A SESSION
02735     @param d Disc to get session array for
02736     @param num Returns the number of sessions in the array
02737     @return array of sessions
02738 */
02739 struct burn_session **burn_disc_get_sessions(struct burn_disc *d,
02740                                              int *num);
02741 
02742 int burn_disc_get_sectors(struct burn_disc *d);
02743 
02744 /** Gets an array of all the tracks for a session
02745     THIS IS NO LONGER VALID AFTER YOU ADD OR REMOVE A TRACK
02746     @param s session to get track array for
02747     @param num Returns the number of tracks in the array
02748     @return array of tracks
02749 */
02750 struct burn_track **burn_session_get_tracks(struct burn_session *s,
02751                                             int *num);
02752 
02753 int burn_session_get_sectors(struct burn_session *s);
02754 
02755 /** Gets the mode of a track
02756     @param track the track to query
02757     @return the track's mode
02758 */
02759 int burn_track_get_mode(struct burn_track *track);
02760 
02761 /** Returns whether the first track of a session is hidden in the pregap
02762     @param session the session to query
02763     @return non-zero means the first track is hidden
02764 */
02765 int burn_session_get_hidefirst(struct burn_session *session);
02766 
02767 /** Returns the library's version in its parts.
02768     This is the runtime counterpart of the three build time macros 
02769     burn_header_version_* below.
02770     @param major The major version number
02771     @param minor The minor version number
02772     @param micro The micro version number
02773 */
02774 void burn_version(int *major, int *minor, int *micro);
02775 
02776 
02777 /* ts A80129 */
02778 /* @since 0.4.4 */
02779 /** These three release version numbers tell the revision of this header file
02780     and of the API it describes. They are memorized by applications at build
02781     time.
02782     Immediately after burn_initialize() an application should do this check:
02783       burn_version(&major, &minor, &micro);
02784       if(major > burn_header_version_major
02785          || (major == burn_header_version_major
02786              && (minor > burn_header_version_minor
02787                  || (minor == burn_header_version_minor
02788                      && micro >= burn_header_version_micro)))) {
02789           ... Young enough. Go on with program run ....
02790       } else {
02791           ... Too old. Do not use this libburn version ...
02792       }
02793 
02794 */
02795 #define burn_header_version_major  1
02796 #define burn_header_version_minor  1
02797 #define burn_header_version_micro  6
02798 /** Note:
02799     Above version numbers are also recorded in configure.ac because libtool
02800     wants them as parameters at build time.
02801     For the library compatibility check, BURN_*_VERSION in configure.ac
02802     are not decisive. Only the three numbers above do matter.
02803 */
02804 /** Usage discussion:
02805 
02806 Some developers of the libburnia project have differing
02807 opinions how to ensure the compatibility of libaries
02808 and applications.
02809 
02810 It is about whether to use at compile time and at runtime
02811 the version numbers isoburn_header_version_* provided here.
02812 Thomas Schmitt advises to use them.
02813 Vreixo Formoso advises to use other means.
02814 
02815 At compile time:
02816 
02817 Vreixo Formoso advises to leave proper version matching
02818 to properly programmed checks in the the application's
02819 build system, which will eventually refuse compilation.
02820 
02821 Thomas Schmitt advises to use the macros defined here
02822 for comparison with the application's requirements of
02823 library revisions and to eventually break compilation.
02824 
02825 Both advises are combinable. I.e. be master of your
02826 build system and have #if checks in the source code
02827 of your application, nevertheless.
02828 
02829 At runtime (via *_is_compatible()):
02830 
02831 Vreixo Formoso advises to compare the application's
02832 requirements of library revisions with the runtime
02833 library. This is to allow runtime libraries which are
02834 young enough for the application but too old for
02835 the lib*.h files seen at compile time.
02836 
02837 Thomas Schmitt advises to compare the header
02838 revisions defined here with the runtime library.
02839 This is to enforce a strictly monotonous chain
02840 of revisions from app to header to library,
02841 at the cost of excluding some older libraries.
02842 
02843 These two advises are mutually exclusive.
02844 
02845 */
02846 
02847 /* ts A91226 */
02848 /** Obtain the id string of the SCSI transport interface.
02849     This interface may be a system specific adapter module of libburn or
02850     an adapter to a supporting library like libcdio.
02851     @param flag  Bitfield for control puposes, submit 0 for now
02852     @return      A pointer to the id string. Do not alter the string content.
02853     @since 0.7.6
02854 */
02855 char *burn_scsi_transport_id(int flag);
02856 
02857 /* ts A60924 : ticket 74 */
02858 /** Control queueing and stderr printing of messages from libburn.
02859     Severity may be one of "NEVER", "ABORT", "FATAL", "FAILURE", "SORRY",
02860     "WARNING", "HINT", "NOTE", "UPDATE", "DEBUG", "ALL".
02861     @param queue_severity Gives the minimum limit for messages to be queued.
02862                           Default: "NEVER". If you queue messages then you
02863                           must consume them by burn_msgs_obtain().
02864     @param print_severity Does the same for messages to be printed directly
02865                           to stderr. Default: "FATAL".
02866     @param print_id       A text prefix to be printed before the message.
02867     @return               >0 for success, <=0 for error
02868     @since 0.2.6
02869 */
02870 int burn_msgs_set_severities(char *queue_severity,
02871                              char *print_severity, char *print_id);
02872 
02873 /* ts A60924 : ticket 74 */
02874 /*  @since 0.2.6 */
02875 #define BURN_MSGS_MESSAGE_LEN 4096
02876 
02877 /** Obtain the oldest pending libburn message from the queue which has at
02878     least the given minimum_severity. This message and any older message of
02879     lower severity will get discarded from the queue and is then lost forever.
02880     @param minimum_severity  may be one of "NEVER", "ABORT", "FATAL",
02881                       "FAILURE", "SORRY", "WARNING", "HINT", "NOTE", "UPDATE",
02882                       "DEBUG", "ALL".
02883                       To call with minimum_severity "NEVER" will discard the
02884                       whole queue.
02885     @param error_code Will become a unique error code as listed in
02886                       libburn/libdax_msgs.h
02887     @param msg_text   Must provide at least BURN_MSGS_MESSAGE_LEN bytes.
02888     @param os_errno   Will become the eventual errno related to the message
02889     @param severity   Will become the severity related to the message and
02890                       should provide at least 80 bytes.
02891     @return 1 if a matching item was found, 0 if not, <0 for severe errors
02892     @since 0.2.6
02893 */
02894 int burn_msgs_obtain(char *minimum_severity,
02895                      int *error_code, char msg_text[], int *os_errno,
02896                      char severity[]);
02897 
02898 
02899 /* ts A70922 */
02900 /** Submit a message to the libburn queueing system. It will be queued or
02901     printed as if it was generated by libburn itself.
02902     @param error_code The unique error code of your message.
02903                       Submit 0 if you do not have reserved error codes within
02904                       the libburnia project.
02905     @param msg_text   Not more than BURN_MSGS_MESSAGE_LEN characters of
02906                       message text.
02907     @param os_errno   Eventual errno related to the message. Submit 0 if
02908                       the message is not related to a operating system error.
02909     @param severity   One of "ABORT", "FATAL", "FAILURE", "SORRY", "WARNING",
02910                       "HINT", "NOTE", "UPDATE", "DEBUG". Defaults to "FATAL".
02911     @param d          An eventual drive to which the message shall be related.
02912                       Submit NULL if the message is not specific to a
02913                       particular drive object.
02914     @return           1 if message was delivered, <=0 if failure
02915     @since 0.4.0
02916 */
02917 int burn_msgs_submit(int error_code, char msg_text[], int os_errno,
02918                      char severity[], struct burn_drive *d);
02919 
02920 
02921 /* ts A71016 */
02922 /** Convert a severity name into a severity number, which gives the severity
02923     rank of the name.
02924     @param severity_name A name as with burn_msgs_submit(), e.g. "SORRY".
02925     @param severity_number The rank number: the higher, the more severe.
02926     @param flag Bitfield for control purposes (unused yet, submit 0)
02927     @return >0 success, <=0 failure
02928     @since 0.4.0
02929 */
02930 int burn_text_to_sev(char *severity_name, int *severity_number, int flag);
02931 
02932 
02933 /* ts A80202 */
02934 /** Convert a severity number into a severity name
02935     @since 0.4.4
02936     @param severity_number The rank number: the higher, the more severe.
02937     @param severity_name A name as with burn_msgs_submit(), e.g. "SORRY".
02938     @param flag Bitfield for control purposes (unused yet, submit 0)
02939     @since 0.4.4
02940 */
02941 int burn_sev_to_text(int severity_number, char **severity_name, int flag);
02942 
02943 
02944 
02945 /* ts A70915 */
02946 /** Replace the messenger object handle of libburn by a compatible handle
02947     obtained from a related library. 
02948     See also: libisofs, API function iso_get_messenger().
02949     @param messenger The foreign but compatible message handle.
02950     @return 1 : success, <=0 : failure
02951     @since 0.4.0
02952 */
02953 int burn_set_messenger(void *messenger);
02954 
02955 
02956 /* ts A61002 */
02957 /* @since 0.2.6 */
02958 /** The prototype of a handler function suitable for burn_set_signal_handling()
02959     Such a function has to return -2 if it does not want the process to
02960     exit with value 1.
02961 */
02962 typedef int (*burn_abort_handler_t)(void *handle, int signum, int flag);
02963 
02964 /** Control built-in signal handling. Either by setting an own handler or
02965     by activating the built-in signal handler.
02966 
02967     A function parameter handle of NULL activates the built-in abort handler. 
02968     Depending on mode it may cancel all drive operations, wait for all drives
02969     to become idle, exit(1). It may also prepare function
02970     burn_drive_get_status() for waiting and performing exit(1). 
02971     If parameter handle may be NULL or a text that shall be used as prefix for
02972     pacifier messages of burn_abort_pacifier(). Other than with an application
02973     provided handler, the prefix char array does not have to be kept existing
02974     until the eventual signal event.
02975     Before version 0.7.8 only action 0 was available. I.e. the built-in handler
02976     waited for the drives to become idle and then performed exit(1) directly.
02977     But during burn_disc_write() onto real CD or DVD, FreeBSD 8.0 pauses the
02978     other threads until the signal handler returns.
02979     The new actions try to avoid this deadlock. It is advised to use action 3
02980     at least during burn_disc_write(), burn_disc_erase(), burn_disc_format():
02981       burn_set_signal_handling(text, NULL, 0x30);
02982     and to call burn_is_aborting(0) when the drive is BURN_DRIVE_IDLE.
02983     If burn_is_aborting(0) returns 1, then call burn_abort() and exit(1).
02984 
02985     @param handle Opaque handle eventually pointing to an application
02986                   provided memory object
02987     @param handler A function to be called on signals. It will get handle as
02988                   argument. flag will be 0.
02989                   It should finally call burn_abort(). See there.
02990     @param mode : bit0 - bit3:
02991                     Receiving signals:
02992                     0 Call handler(handle, signum, 0) on nearly all signals
02993                     1 Enable system default reaction on all signals
02994                     2 Try to ignore nearly all signals
02995                    10 like mode 2 but handle SIGABRT like with mode 0
02996                   bit4 - bit7: With handler == NULL :
02997                     Action of built-in handler. "control thread" is the one
02998                     which called burn_set_signal_handling().
02999                     All actions activate receive mode 2 to ignore further
03000                     signals.
03001                     0 Same as 1 (for pre-0.7.8 backward compatibility)
03002                     @since 0.7.8
03003                     1 Catch the control thread in abort handler, call
03004                       burn_abort(>0) and finally exit(1).
03005                       Does not always work with FreeBSD.
03006                     2 Call burn_abort(-1) and return from handler. When the
03007                       control thread calls burn_drive_get_status(), then do
03008                       burn_abort(>0) instead, and finally exit(1).
03009                       Does not always work with FreeBSD.
03010                     3 Call burn_abort(-1), return from handler. It is duty of
03011                       the application to detect a pending abort condition
03012                       by calling burn_is_aborting() and to wait for all
03013                       drives to become idle. E.g. by calling burn_abort(>0).
03014                     4 Like 3, but without calling burn_abort(-1). Only the
03015                       indicator of burn_is_aborting() gets set.
03016     @since 0.2.6
03017 */
03018 void burn_set_signal_handling(void *handle, burn_abort_handler_t handler, 
03019                  int mode);
03020 
03021 
03022 /* ts B00304 */
03023 /* Inquire whether the built-in abort handler was triggered by a signal.
03024    This has to be done to detect pending abort handling if signal handling
03025    was set to the built-in handler and action was set to 2 or 3.
03026    @param flag  Bitfield for control purposes (unused yet, submit 0)
03027    @return    0 = no abort was triggered
03028              >0 = action that was triggered (action 0 is reported as 1)
03029    @since 0.7.8
03030 */
03031 int burn_is_aborting(int flag);
03032 
03033 
03034 /* ts A70811 */
03035 /** Write data in random access mode.
03036     The drive must be grabbed successfully before calling this function which
03037     circumvents usual libburn session processing and rather writes data without
03038     preparations or finalizing. This will work only with overwriteable media
03039     which are also suitable for burn_write_opts_set_start_byte(). The same
03040     address alignment restrictions as with this function apply. I.e. for DVD
03041     it is best to align to 32 KiB blocks (= 16 LBA units). The amount of data
03042     to be written is subject to the same media dependent alignment rules.
03043     Again, 32 KiB is most safe.
03044     Call burn_disc_get_multi_caps() can obtain the necessary media info. See
03045     resulting struct burn_multi_caps elements .start_adr , .start_alignment ,
03046     .start_range_low , .start_range_high .
03047     Other than burn_disc_write() this is a synchronous call which returns
03048     only after the write transaction has ended (sucessfully or not). So it is
03049     wise not to transfer giant amounts of data in a single call.
03050     Important: Data have to fit into the already formatted area of the media.
03051     @param d            The drive to which to write 
03052     @param byte_address The start address of the write in byte
03053                         (1 LBA unit = 2048 bytes) (do respect media alignment)
03054     @param data         The bytes to be written
03055     @param data_count   The number of those bytes (do respect media alignment)
03056                         data_count == 0 is permitted (e.g. to flush the
03057                         drive buffer without further data transfer).
03058     @param flag         Bitfield for control purposes:
03059                         bit0 = flush the drive buffer after eventual writing
03060     @return 1=sucessful , <=0 : number of transfered bytes * -1
03061     @since 0.4.0
03062 */
03063 int burn_random_access_write(struct burn_drive *d, off_t byte_address,
03064                              char *data, off_t data_count, int flag);
03065 
03066 
03067 /* ts A81215 */
03068 /** Inquire the maximum amount of readable data.
03069     It is supposed that all LBAs in the range from 0 to media_read_acpacity-1
03070     can be read via burn_read_data() although some of them may never have been
03071     recorded. If tracks are recognizable then it is better to only read
03072     LBAs which are part of some track.
03073     If the drive is actually a large file or block device, then the capacity
03074     is curbed to a maximum of 0x7ffffff0 blocks = 4 TB - 32 KB.
03075     @param d            The drive from which to read
03076     @param capacity     Will return the result if valid
03077     @param flag         Bitfield for control purposes: Unused yet, submit 0.
03078     @return 1=sucessful , <=0 an error occured
03079     @since 0.6.0
03080 */
03081 int burn_get_read_capacity(struct burn_drive *d, int *capacity, int flag);
03082 
03083 
03084 /* ts A70812 */
03085 /** Read data in random access mode.
03086     The drive must be grabbed successfully before calling this function.
03087     With all currently supported drives and media the byte_address has to
03088     be aligned to 2048 bytes. Only data tracks with 2048 bytes per sector
03089     can be read this way. I.e. not CD-audio, not CD-video-stream ...
03090     This is a synchronous call which returns only after the full read job
03091     has ended (sucessfully or not). So it is wise not to read giant amounts
03092     of data in a single call.
03093     @param d            The drive from which to read
03094     @param byte_address The start address of the read in byte (aligned to 2048)
03095     @param data         A memory buffer capable of taking data_size bytes
03096     @param data_size    The amount of data to be read. This does not have to
03097                         be aligned to any block size.
03098     @param data_count   The amount of data actually read (interesting on error)
03099     @param flag         Bitfield for control purposes:
03100                         bit0= - reserved -
03101                         bit1= do not submit error message if read error
03102                         bit2= on error do not try to read a second time
03103                               with single block steps.
03104                               @since 0.5.2 
03105                         bit3= return -2 on permission denied error rather than
03106                               issueing a warning message.
03107                               @since 1.0.6
03108     @return 1=sucessful , <=0 an error occured
03109                           with bit3:  -2= permission denied error
03110     @since 0.4.0
03111 */
03112 int burn_read_data(struct burn_drive *d, off_t byte_address,
03113                    char data[], off_t data_size, off_t *data_count, int flag);
03114 
03115 
03116 /* ts A70904 */
03117 /** Inquire whether the drive object is a real MMC drive or a pseudo-drive
03118     created by a stdio: address.
03119     @param d      The drive to inquire
03120     @return       0= null-drive
03121                   1= real MMC drive
03122                   2= stdio-drive, random access, read-write
03123                   3= stdio-drive, sequential, write-only
03124                   4= stdio-drive, random access, read-only
03125                      (only if enabled by burn_allow_drive_role_4())
03126                   5= stdio-drive, random access, write-only
03127                      (only if enabled by burn_allow_drive_role_4())
03128     @since 0.4.0
03129 */
03130 int burn_drive_get_drive_role(struct burn_drive *d);
03131 
03132 
03133 /* ts B10312 */
03134 /** Allow drive role 4 "random access read-only"
03135     and drive role 5 "random access write-only".
03136     By default a random access file assumes drive role 2 "read-write"
03137     regardless whether it is actually readable or writeable.
03138     If enabled, random-access file objects which recognizably allow no
03139     writing will be classified as role 4 and those which allow no reading
03140     will get role 5.
03141     Candidates are drive addresses of the form stdio:/dev/fd/# , where # is
03142     the integer number of an open file descriptor. If this descriptor was
03143     opened read-only resp. write-only, then it gets role 4 resp. role 5.
03144     Other paths may get tested by an attempt to open them for read-write
03145     (role 2) resp. read-only (role 4) resp. write-only (role 5). See bit1.
03146     @param allowed      Bitfield for control purposes:
03147                         bit0= Enable roles 4 and 5 for drives which get
03148                               aquired after this call
03149                         bit1= with bit0:
03150                               Test whether the file can be opened for
03151                               read-write resp. read-only resp. write-only.
03152                               Classify as roles 2 resp. 4 resp. 5.
03153                         bit2= with bit0 and bit1:
03154                               Classify files which cannot be opened at all
03155                               as role 0 : useless dummy.
03156                               Else classify as role 2.
03157                         bit3= Classify non-empty role 5 drives as
03158                               BURN_DISC_APPENDABLE with Next Writeable Address
03159                               after the end of the file. It is nevertheless
03160                               possible to change this address by call
03161                               burn_write_opts_set_start_byte().
03162     @since 1.0.6
03163 */
03164 void burn_allow_drive_role_4(int allowed);
03165 
03166 
03167 /* ts A70923 */
03168 /** Find out whether a given address string would lead to the given drive
03169     object. This should be done in advance for track source addresses
03170     with parameter drive_role set to 2. 
03171     Although a real MMC drive should hardly exist as two drive objects at
03172     the same time, this can easily happen with stdio-drives. So if more than
03173     one drive is used by the application, then this gesture is advised:
03174       burn_drive_d_get_adr(d2, adr2);
03175       if (burn_drive_equals_adr(d1, adr2, burn_drive_get_drive_role(d2)))
03176         ... Both drive objects point to the same storage facility ...
03177  
03178     @param d1      Existing drive object
03179     @param adr2    Address string to be tested. Prefix "stdio:" overrides
03180                    parameter drive_role2 by either 0 or 2 as appropriate.
03181                    The string must be shorter than BURN_DRIVE_ADR_LEN.
03182     @param drive_role2  Role as burn_drive_get_drive_role() would attribute
03183                    to adr2 if it was a drive. Use value 2 for checking track
03184                    sources resp. pseudo-drive addresses without "stdio:".
03185                    Use 1 for checking drive addresses including those with
03186                    prefix "stdio:".
03187     @return        1= adr2 leads to d1 , 0= adr2 seems not to lead to d1,
03188                    -1 = adr2 is bad
03189     @since 0.4.0
03190 */
03191 int burn_drive_equals_adr(struct burn_drive *d1, char *adr2, int drive_role2);
03192 
03193 
03194 
03195 /*
03196   Audio track data extraction facility.
03197 */
03198 
03199 /* Maximum size for address paths and fmt_info strings */
03200 #define LIBDAX_AUDIOXTR_STRLEN 4096
03201 
03202 
03203 /** Extractor object encapsulating intermediate states of extraction.
03204     The clients of libdax_audioxtr shall only allocate pointers to this
03205     struct and get a storage object via libdax_audioxtr_new().
03206     Appropriate initial value for the pointer is NULL.
03207 */
03208 struct libdax_audioxtr;
03209 
03210 
03211 /** Open an audio file, check wether suitable, create extractor object.
03212     @param xtr Opaque handle to extractor. Gets attached extractor object.
03213     @param path Address of the audio file to extract. "-" is stdin (but might
03214                 be not suitable for all futurely supported formats).
03215     @param flag Bitfield for control purposes (unused yet, submit 0)
03216     @return >0 success
03217              0 unsuitable format
03218             -1 severe error
03219             -2 path not found
03220     @since 0.2.4
03221 */
03222 int libdax_audioxtr_new(struct libdax_audioxtr **xtr, char *path, int flag);
03223 
03224 
03225 /** Obtain identification parameters of opened audio source.
03226     @param xtr Opaque handle to extractor
03227     @param fmt Gets pointed to the audio file format id text: ".wav" , ".au"
03228     @param fmt_info Gets pointed to a format info text telling parameters
03229     @param num_channels     e.g. 1=mono, 2=stereo, etc
03230     @param sample_rate      e.g. 11025, 44100
03231     @param bits_per_sample  e.g. 8= 8 bits per sample, 16= 16 bits ...
03232     @param msb_first Byte order of samples: 0=Intel 1=Motorola
03233     @param flag Bitfield for control purposes (unused yet, submit 0)
03234     @return >0 success, <=0 failure
03235     @since 0.2.4
03236 */
03237 int libdax_audioxtr_get_id(struct libdax_audioxtr *xtr,
03238                            char **fmt, char **fmt_info,
03239                            int *num_channels, int *sample_rate,
03240                            int *bits_per_sample, int *msb_first, int flag);
03241 
03242 
03243 /** Obtain a prediction about the extracted size based on internal information
03244     of the formatted file.
03245     @param xtr Opaque handle to extractor
03246     @param size Gets filled with the predicted size
03247     @param flag Bitfield for control purposes (unused yet, submit 0)
03248     @return 1 prediction was possible , 0 no prediction could be made
03249     @since 0.2.4
03250 */
03251 int libdax_audioxtr_get_size(struct libdax_audioxtr *o, off_t *size, int flag);
03252 
03253 
03254 /** Obtain next buffer full of extracted data in desired format (only raw audio
03255     for now).
03256     @param xtr Opaque handle to extractor
03257     @param buffer Gets filled with extracted data
03258     @param buffer_size Maximum number of bytes to be filled into buffer
03259     @param flag Bitfield for control purposes
03260                 bit0= do not stop at predicted end of data
03261     @return >0 number of valid buffer bytes,
03262              0 End of file
03263             -1 operating system reports error
03264             -2 usage error by application
03265     @since 0.2.4
03266 */
03267 int libdax_audioxtr_read(struct libdax_audioxtr *xtr,
03268                          char buffer[], int buffer_size, int flag);
03269 
03270 
03271 /** Try to obtain a file descriptor which will deliver extracted data
03272     to normal calls of read(2). This may fail because the format is
03273     unsuitable for that, but ".wav" is ok. If this call succeeds the xtr
03274     object will have forgotten its file descriptor and libdax_audioxtr_read()
03275     will return a usage error. One may use *fd after libdax_audioxtr_destroy()
03276     and will have to close it via close(2) when done with it.
03277     @param xtr Opaque handle to extractor
03278     @param fd Eventually returns the file descriptor number
03279     @param flag Bitfield for control purposes
03280                 bit0= do not dup(2) and close(2) but hand out original fd
03281     @return 1 success, 0 cannot hand out fd , -1 severe error
03282     @since 0.2.4
03283 */
03284 int libdax_audioxtr_detach_fd(struct libdax_audioxtr *o, int *fd, int flag);
03285 
03286 
03287 /** Clean up after extraction and destroy extractor object.
03288     @param xtr Opaque handle to extractor, *xtr is allowed to be NULL,
03289                *xtr is set to NULL by this function
03290     @param flag Bitfield for control purposes (unused yet, submit 0)
03291     @return 1 = destroyed object, 0 = was already destroyed
03292     @since 0.2.4
03293 */
03294 int libdax_audioxtr_destroy(struct libdax_audioxtr **xtr, int flag);
03295 
03296 
03297 
03298 #ifndef DOXYGEN
03299 
03300 BURN_END_DECLS
03301 
03302 #endif
03303 
03304 
03305 /* ts A91205 */
03306 /* The following experiments may be interesting in future:
03307 */
03308 
03309 /* Perform OPC explicitely.
03310    # define Libburn_pioneer_dvr_216d_with_opC 1
03311 */
03312 
03313 /* Load mode page 5 and modify it rather than composing from scratch.
03314    # define Libburn_pioneer_dvr_216d_load_mode5 1
03315 */
03316 
03317 /* Inquire drive events and react by reading configuration or starting unit.
03318    # define Libburn_pioneer_dvr_216d_get_evenT 1
03319 */
03320 
03321 /* ts A91112 */
03322 /* Do not probe CD modes but declare only data and audio modes supported.
03323    For other modes resp. real probing one has to call
03324    burn_drive_probe_cd_write_modes().
03325 
03326 */
03327 #define Libburn_dummy_probe_write_modeS 1
03328 
03329 
03330 #endif /*LIBBURN_H*/

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