1 /*****************************************************************************
2 * libmp4.h : LibMP4 library for mp4 module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001 VideoLAN
5 * $Id: libmp4.h,v 1.4 2002/11/17 06:46:56 fenrir Exp $
6 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
21 *****************************************************************************/
23 #define FOURCC_uuid VLC_FOURCC( 'u', 'u', 'i', 'd' )
25 #define FOURCC_ftyp VLC_FOURCC( 'f', 't', 'y', 'p' )
26 #define FOURCC_moov VLC_FOURCC( 'm', 'o', 'o', 'v' )
27 #define FOURCC_cmov VLC_FOURCC( 'c', 'm', 'o', 'v' )
28 #define FOURCC_dcom VLC_FOURCC( 'd', 'c', 'o', 'm' )
29 #define FOURCC_cmvd VLC_FOURCC( 'c', 'm', 'v', 'd' )
31 #define FOURCC_moof VLC_FOURCC( 'm', 'o', 'o', 'f' )
32 #define FOURCC_mdat VLC_FOURCC( 'm', 'd', 'a', 't' )
33 #define FOURCC_skip VLC_FOURCC( 's', 'k', 'i', 'p' )
34 #define FOURCC_free VLC_FOURCC( 'f', 'r', 'e', 'e' )
35 #define FOURCC_udta VLC_FOURCC( 'u', 'd', 't', 'a' )
36 #define FOURCC_wide VLC_FOURCC( 'w', 'i', 'd', 'e' )
38 #define FOURCC_trak VLC_FOURCC( 't', 'r', 'a', 'k' )
39 #define FOURCC_mvhd VLC_FOURCC( 'm', 'v', 'h', 'd' )
40 #define FOURCC_tkhd VLC_FOURCC( 't', 'k', 'h', 'd' )
41 #define FOURCC_tref VLC_FOURCC( 't', 'r', 'e', 'f' )
42 #define FOURCC_mdia VLC_FOURCC( 'm', 'd', 'i', 'a' )
43 #define FOURCC_mdhd VLC_FOURCC( 'm', 'd', 'h', 'd' )
44 #define FOURCC_hdlr VLC_FOURCC( 'h', 'd', 'l', 'r' )
45 #define FOURCC_minf VLC_FOURCC( 'm', 'i', 'n', 'f' )
46 #define FOURCC_vmhd VLC_FOURCC( 'v', 'm', 'h', 'd' )
47 #define FOURCC_smhd VLC_FOURCC( 's', 'm', 'h', 'd' )
48 #define FOURCC_hmhd VLC_FOURCC( 'h', 'm', 'h', 'd' )
49 #define FOURCC_dinf VLC_FOURCC( 'd', 'i', 'n', 'f' )
50 #define FOURCC_url VLC_FOURCC( 'u', 'r', 'l', ' ' )
51 #define FOURCC_urn VLC_FOURCC( 'u', 'r', 'n', ' ' )
52 #define FOURCC_dref VLC_FOURCC( 'd', 'r', 'e', 'f' )
53 #define FOURCC_stbl VLC_FOURCC( 's', 't', 'b', 'l' )
54 #define FOURCC_stts VLC_FOURCC( 's', 't', 't', 's' )
55 #define FOURCC_ctts VLC_FOURCC( 'c', 't', 't', 's' )
56 #define FOURCC_stsd VLC_FOURCC( 's', 't', 's', 'd' )
57 #define FOURCC_stsz VLC_FOURCC( 's', 't', 's', 'z' )
58 #define FOURCC_stz2 VLC_FOURCC( 's', 't', 'z', '2' )
59 #define FOURCC_stsc VLC_FOURCC( 's', 't', 's', 'c' )
60 #define FOURCC_stco VLC_FOURCC( 's', 't', 'c', 'o' )
61 #define FOURCC_co64 VLC_FOURCC( 'c', 'o', '6', '4' )
62 #define FOURCC_stss VLC_FOURCC( 's', 't', 's', 's' )
63 #define FOURCC_stsh VLC_FOURCC( 's', 't', 's', 'h' )
64 #define FOURCC_stdp VLC_FOURCC( 's', 't', 'd', 'p' )
65 #define FOURCC_padb VLC_FOURCC( 'p', 'a', 'd', 'b' )
66 #define FOURCC_edts VLC_FOURCC( 'e', 'd', 't', 's' )
67 #define FOURCC_elst VLC_FOURCC( 'e', 'l', 's', 't' )
68 #define FOURCC_udta VLC_FOURCC( 'u', 'd', 't', 'a' )
69 #define FOURCC_mvex VLC_FOURCC( 'm', 'v', 'e', 'x' )
70 #define FOURCC_trex VLC_FOURCC( 't', 'r', 'e', 'x' )
71 #define FOURCC_mfhd VLC_FOURCC( 'm', 'f', 'h', 'd' )
72 #define FOURCC_traf VLC_FOURCC( 't', 'r', 'a', 'f' )
73 #define FOURCC_tfhd VLC_FOURCC( 't', 'f', 'h', 'd' )
74 #define FOURCC_trun VLC_FOURCC( 't', 'r', 'u', 'n' )
75 #define FOURCC_cprt VLC_FOURCC( 'c', 'p', 'r', 't' )
76 #define FOURCC_iods VLC_FOURCC( 'i', 'o', 'd', 's' )
78 #define FOURCC_nmhd VLC_FOURCC( 'n', 'm', 'h', 'd' )
79 #define FOURCC_mp4v VLC_FOURCC( 'm', 'p', '4', 'v' )
80 #define FOURCC_mp4a VLC_FOURCC( 'm', 'p', '4', 'a' )
81 #define FOURCC_mp4s VLC_FOURCC( 'm', 'p', '4', 's' )
82 #define FOURCC_vide VLC_FOURCC( 'v', 'i', 'd', 'e' )
83 #define FOURCC_soun VLC_FOURCC( 's', 'o', 'u', 'n' )
84 #define FOURCC_hint VLC_FOURCC( 'h', 'i', 'n', 't' )
86 #define FOURCC_dpnd VLC_FOURCC( 'd', 'p', 'n', 'd' )
87 #define FOURCC_ipir VLC_FOURCC( 'i', 'p', 'i', 'r' )
88 #define FOURCC_mpod VLC_FOURCC( 'm', 'p', 'o', 'd' )
89 #define FOURCC_hnti VLC_FOURCC( 'h', 'n', 't', 'i' )
90 #define FOURCC_rtp VLC_FOURCC( 'r', 't', 'p', ' ' )
92 #define FOURCC_isom VLC_FOURCC( 'i', 's', 'o', 'm' )
93 #define FOURCC_esds VLC_FOURCC( 'e', 's', 'd', 's' )
95 #define FOURCC_zlib VLC_FOURCC( 'z', 'l', 'i', 'b' )
96 #define FOURCC_SVQ1 VLC_FOURCC( 'S', 'V', 'Q', '1' )
97 #define FOURCC__mp3 VLC_FOURCC( '.', 'm', 'p', '3' )
98 #define FOURCC_ms55 VLC_FOURCC( 'm', 's', 0x0, 0x55 )
99 #define FOURCC_3IV1 VLC_FOURCC( '3', 'I', 'V', '1' )
100 #define FOURCC_3IV2 VLC_FOURCC( '3', 'I', 'V', '2' )
101 #define FOURCC_h263 VLC_FOURCC( 'h', '2', '6', '3' )
102 #define FOURCC_DIVX VLC_FOURCC( 'D', 'I', 'V', 'X' )
103 #define FOURCC_cvid VLC_FOURCC( 'c', 'v', 'i', 'd' )
104 #define FOURCC_mjpa VLC_FOURCC( 'm', 'j', 'p', 'a' )
105 #define FOURCC_mjpb VLC_FOURCC( 'm', 'j', 'q', 't' )
106 #define FOURCC_mjqt VLC_FOURCC( 'm', 'j', 'h', 't' )
107 #define FOURCC_mjht VLC_FOURCC( 'm', 'j', 'p', 'b' )
109 #define FOURCC_jpeg VLC_FOURCC( 'j', 'p', 'e', 'g' )
111 /* Do you want some debug information on all read boxes ? */
112 #define MP4_VERBOSE 1
114 /* memory stream and file stream object */
116 typedef struct MP4_Stream_s
118 int b_memory; /* do we uses a memory buffer */
120 input_thread_t *p_input;
122 off_t i_start; /* in the buffer position for memory stream */
131 /* uuid Universal Unique IDentifiers */
132 typedef struct UUID_s
137 /* specific structure for all boxes */
139 typedef struct MP4_Box_data_ftyp_s
141 uint32_t i_major_brand;
142 uint32_t i_minor_version;
144 uint32_t i_compatible_brands_count;
145 uint32_t *i_compatible_brands;
147 } MP4_Box_data_ftyp_t;
149 typedef struct MP4_Box_data_mvhd_s
154 uint64_t i_creation_time;
155 uint64_t i_modification_time;
156 uint32_t i_timescale;
162 uint32_t i_reserved2[2];
164 uint32_t i_predefined[6];
165 uint32_t i_next_track_id;
167 } MP4_Box_data_mvhd_t;
169 #define MP4_TRACK_ENABLED 0x000001
170 #define MP4_TRACK_IN_MOVIE 0x000002
171 #define MP4_TRACK_IN_PREVIEW 0x000004
172 typedef struct MP4_Box_data_tkhd_s
177 uint64_t i_creation_time;
178 uint64_t i_modification_time;
183 uint32_t i_reserved2[2];
185 int16_t i_predefined;
188 uint16_t i_reserved3;
193 } MP4_Box_data_tkhd_t;
195 typedef struct MP4_Box_data_mdhd_s
200 uint64_t i_creation_time;
201 uint64_t i_modification_time;
202 uint32_t i_timescale;
205 /* one bit for pad */
206 /* unsigned int(5)[3] language difference with 0x60*/
207 unsigned char i_language[3];
208 uint16_t i_predefined;
210 } MP4_Box_data_mdhd_t;
212 typedef struct MP4_Box_data_hdlr_s
217 uint32_t i_predefined;
218 uint32_t i_handler_type; /* "vide" "soun" "hint" "odsm"
219 "crsm" "sdsm" "m7sm" "ocsm"
222 unsigned char *psz_name; /* in UTF-8 */
224 } MP4_Box_data_hdlr_t;
226 typedef struct MP4_Box_data_vmhd_s
231 int16_t i_graphics_mode;
232 int16_t i_opcolor[3];
234 } MP4_Box_data_vmhd_t;
236 typedef struct MP4_Box_data_smhd_s
244 } MP4_Box_data_smhd_t;
246 typedef struct MP4_Box_data_hmhd_s
251 uint16_t i_max_PDU_size;
252 uint16_t i_avg_PDU_size;
253 uint32_t i_max_bitrate;
254 uint32_t i_avg_bitrate;
257 } MP4_Box_data_hmhd_t;
259 typedef struct MP4_Box_data_url_s
264 unsigned char *psz_location;
266 } MP4_Box_data_url_t;
268 typedef struct MP4_Box_data_urn_s
273 unsigned char *psz_name;
274 unsigned char *psz_location;
276 } MP4_Box_data_urn_t;
278 typedef struct MP4_Box_data_dref_s
283 uint32_t i_entry_count;
284 /* XXX it's also a container with i_entry_count entry */
285 } MP4_Box_data_dref_t;
287 typedef struct MP4_Box_data_stts_s
292 uint32_t i_entry_count;
293 uint32_t *i_sample_count; /* these are array */
294 int32_t *i_sample_delta;
296 } MP4_Box_data_stts_t;
298 typedef struct MP4_Box_data_ctts_s
303 uint32_t i_entry_count;
305 uint32_t *i_sample_count; /* these are array */
306 int32_t *i_sample_offset;
308 } MP4_Box_data_ctts_t;
311 typedef struct MP4_Box_data_sample_soun_s
313 uint8_t i_reserved1[6];
314 uint16_t i_data_reference_index;
316 uint32_t i_reserved2[2];
317 uint16_t i_channelcount;
318 uint16_t i_samplesize;
319 uint16_t i_predefined;
320 uint16_t i_reserved3;
321 uint16_t i_sampleratehi; /* timescale of track */
322 uint16_t i_sampleratelo;
324 } MP4_Box_data_sample_soun_t;
326 typedef struct MP4_Box_data_sample_vide_s
328 uint8_t i_reserved1[6];
329 uint16_t i_data_reference_index;
331 uint16_t i_predefined1;
332 uint16_t i_reserved2;
333 uint32_t i_predefined2[3];
338 uint32_t i_horizresolution;
339 uint32_t i_vertresolution;
341 uint32_t i_reserved3;
342 uint16_t i_predefined3;
344 uint8_t i_compressorname[32];
347 int16_t i_predefined4;
349 } MP4_Box_data_sample_vide_t;
351 typedef struct MP4_Box_data_sample_hint_s
353 uint8_t i_reserved1[6];
354 uint16_t i_data_reference_index;
358 } MP4_Box_data_sample_hint_t;
360 typedef struct MP4_Box_data_moviehintinformation_rtp_s
362 uint32_t i_description_format;
363 unsigned char *psz_text;
365 } MP4_Box_data_moviehintinformation_rtp_t;
369 typedef struct MP4_Box_data_stsd_s
374 uint32_t i_entry_count;
376 /* it contains SampleEntry handled as if it was Box */
378 } MP4_Box_data_stsd_t;
381 typedef struct MP4_Box_data_stsz_s
386 uint32_t i_sample_size;
387 uint32_t i_sample_count;
389 uint32_t *i_entry_size; /* array , empty if i_sample_size != 0 */
391 } MP4_Box_data_stsz_t;
393 typedef struct MP4_Box_data_stz2_s
398 uint32_t i_sample_size; /* 24 bits */
399 uint8_t i_field_size;
400 uint32_t i_sample_count;
402 uint32_t *i_entry_size; /* array: unsigned int(i_field_size) entry_size */
404 } MP4_Box_data_stz2_t;
406 typedef struct MP4_Box_data_stsc_s
411 uint32_t i_entry_count;
413 uint32_t *i_first_chunk; /* theses are arrays */
414 uint32_t *i_samples_per_chunk;
415 uint32_t *i_sample_description_index;
417 } MP4_Box_data_stsc_t;
420 typedef struct MP4_Box_data_co64_s
425 uint32_t i_entry_count;
427 uint64_t *i_chunk_offset;
429 } MP4_Box_data_co64_t;
432 typedef struct MP4_Box_data_stss_s
437 uint32_t i_entry_count;
439 uint32_t *i_sample_number;
441 } MP4_Box_data_stss_t;
443 typedef struct MP4_Box_data_stsh_s
448 uint32_t i_entry_count;
450 uint32_t *i_shadowed_sample_number;
451 uint32_t *i_sync_sample_number;
453 } MP4_Box_data_stsh_t;
455 typedef struct MP4_Box_data_stdp_s
460 uint16_t *i_priority;
462 } MP4_Box_data_stdp_t;
464 typedef struct MP4_Box_data_padb_s
469 uint32_t i_sample_count;
471 uint16_t *i_reserved1; /* 1bit */
472 uint16_t *i_pad2; /* 3bits */
473 uint16_t *i_reserved2; /* 1bit */
474 uint16_t *i_pad1; /* 3bits */
477 } MP4_Box_data_padb_t;
480 typedef struct MP4_Box_data_elst_s
485 uint32_t i_entry_count;
487 uint64_t *i_segment_duration;
488 int64_t *i_media_time;
489 uint16_t *i_media_rate_integer;
490 uint16_t *i_media_rate_fraction;
493 } MP4_Box_data_elst_t;
495 typedef struct MP4_Box_data_cprt_s
500 unsigned char i_language[3];
502 unsigned char *psz_notice;
503 } MP4_Box_data_cprt_t;
506 /* DecoderConfigDescriptor */
507 typedef struct MP4_descriptor_decoder_config_s
509 uint8_t i_objectTypeIndication;
510 uint8_t i_streamType;
516 int i_decoder_specific_info_len;
517 uint8_t *p_decoder_specific_info;
518 /* some other stuff */
520 } MP4_descriptor_decoder_config_t;
522 typedef struct MP4_descriptor_SL_config_s
525 int i_dummy; /* ANSI C forbids empty structures */
527 } MP4_descriptor_SL_config_t;
530 typedef struct MP4_descriptor_ES_s
533 int b_stream_dependence;
536 int i_stream_priority;
538 int i_depend_on_ES_ID; /* if b_stream_dependence set */
540 unsigned char *psz_URL;
542 uint16_t i_OCR_ES_ID; /* if b_OCRstream */
543 MP4_descriptor_decoder_config_t *p_decConfigDescr;
545 MP4_descriptor_SL_config_t *p_slConfigDescr;
547 /* some other stuff ... */
549 } MP4_descriptor_ES_t;
552 typedef struct MP4_Box_data_esds_s
557 MP4_descriptor_ES_t es_descriptor;
559 } MP4_Box_data_esds_t;
562 typedef struct MP4_Box_data_dcom_s
564 uint32_t i_algorithm; /* fourcc */
566 } MP4_Box_data_dcom_t;
568 typedef struct MP4_Box_data_cmvd_s
570 uint32_t i_uncompressed_size;
571 uint32_t i_compressed_size;
573 int b_compressed; /* Set to 1 if compressed data, 0 if uncompressed */
576 } MP4_Box_data_cmvd_t;
578 typedef struct MP4_Box_data_cmov_s
580 struct MP4_Box_s *p_moov; /* uncompressed moov */
582 } MP4_Box_data_cmov_t;
585 typedef struct MP4_Box_data_cmov_s
594 typedef union MP4_Box_data_s
596 MP4_Box_data_ftyp_t *p_ftyp;
597 MP4_Box_data_mvhd_t *p_mvhd;
598 MP4_Box_data_tkhd_t *p_tkhd;
599 MP4_Box_data_mdhd_t *p_mdhd;
600 MP4_Box_data_hdlr_t *p_hdlr;
601 MP4_Box_data_vmhd_t *p_vmhd;
602 MP4_Box_data_smhd_t *p_smhd;
603 MP4_Box_data_hmhd_t *p_hmhd;
604 MP4_Box_data_url_t *p_url;
605 MP4_Box_data_urn_t *p_urn;
606 MP4_Box_data_dref_t *p_dref;
607 MP4_Box_data_stts_t *p_stts;
608 MP4_Box_data_ctts_t *p_ctts;
609 MP4_Box_data_stsd_t *p_stsd;
610 MP4_Box_data_sample_vide_t *p_sample_vide;
611 MP4_Box_data_sample_soun_t *p_sample_soun;
612 MP4_Box_data_sample_hint_t *p_sample_hint;
614 MP4_Box_data_esds_t *p_esds;
616 MP4_Box_data_stsz_t *p_stsz;
617 MP4_Box_data_stz2_t *p_stz2;
618 MP4_Box_data_stsc_t *p_stsc;
619 MP4_Box_data_co64_t *p_co64;
620 MP4_Box_data_stss_t *p_stss;
621 MP4_Box_data_stsh_t *p_stsh;
622 MP4_Box_data_stdp_t *p_stdp;
623 MP4_Box_data_padb_t *p_padb;
624 MP4_Box_data_elst_t *p_elst;
625 MP4_Box_data_cprt_t *p_cprt;
627 MP4_Box_data_dcom_t *p_dcom;
628 MP4_Box_data_cmvd_t *p_cmvd;
629 MP4_Box_data_cmov_t *p_cmov;
631 MP4_Box_data_moviehintinformation_rtp_t p_moviehintinformation_rtp;
633 void *p_data; /* for unknow type */
638 /* the most basic structure */
639 typedef struct MP4_Box_s
641 off_t i_pos; /* absolute position */
644 uint32_t i_shortsize;
646 UUID_t i_uuid; /* Set if i_type == "uuid" */
648 uint64_t i_size; /* always set so use it */
650 MP4_Box_data_t data; /* union of pointers on extended data depending
651 on i_type (or i_usertype) */
653 struct MP4_Box_s *p_father; /* pointer on the father Box */
655 struct MP4_Box_s *p_first; /* pointer on the first child Box */
656 struct MP4_Box_s *p_last;
658 struct MP4_Box_s *p_next; /* pointer on the next boxes at the same level */
662 /*---------------------------------------------------------------------------*/
664 /****----------------------- High level functions ------------------------****/
666 /*---------------------------------------------------------------------------*/
668 /*****************************************************************************
669 * Function for manipulate stream easily
670 *****************************************************************************/
672 off_t MP4_TellAbsolute( input_thread_t *p_input );
673 int MP4_SeekAbsolute( input_thread_t *p_input, off_t i_pos);
674 int MP4_ReadData( input_thread_t *p_input, uint8_t *p_buff, int i_size );
676 /*****************************************************************************
677 * MP4_BoxGetRoot : Parse the entire file, and create all boxes in memory
678 *****************************************************************************
679 * The first box is a virtual box "root" and is the father for all first
682 * RETURN : 1 if succes and 0 if it failed
683 *****************************************************************************/
684 int MP4_BoxGetRoot( input_thread_t *p_input, MP4_Box_t *p_root );
686 /*****************************************************************************
687 * MP4_FreeBox : free memory allocated after read with MP4_ReadBox
688 * or MP4_BoxGetRoot, this means also children boxes
689 * XXX : all children have to be allocated by a malloc !! and
690 * p_box isn't freeing
691 *****************************************************************************/
692 void MP4_BoxFree( input_thread_t *p_input, MP4_Box_t *p_box );
694 /*****************************************************************************
695 * MP4_DumpBoxStructure: print the structure of the p_box
696 *****************************************************************************
697 * Usefull while debugging
698 *****************************************************************************/
699 void MP4_BoxDumpStructure( input_thread_t *p_input, MP4_Box_t *p_box );
702 /*****************************************************************************
703 * MP4_BoxGet: find a box given a path relative to p_box
704 *****************************************************************************
705 * Path Format: . .. / as usual
706 * [number] to specifie box number ex: trak[12]
710 *****************************************************************************/
711 MP4_Box_t *MP4_BoxGet( MP4_Box_t *p_box, char *psz_fmt, ... );
713 /*****************************************************************************
714 * MP4_BoxCount: find number of box given a path relative to p_box
715 *****************************************************************************
716 * Path Format: . .. / as usual
717 * [number] to specifie box number ex: trak[12]
721 *****************************************************************************/
722 int MP4_BoxCount( MP4_Box_t *p_box, char *psz_fmt, ... );
726 /*---------------------------------------------------------------------------*/
728 /****---------------------- Medium level functions -----------------------****/
730 /*---------------------------------------------------------------------------*/
733 /*****************************************************************************
734 * MP4_CountBox: given a box, count how many child have the requested type
735 * FIXME : support GUUID
736 *****************************************************************************/
737 int MP4_CountBox( MP4_Box_t *p_box, uint32_t i_type );
740 /*****************************************************************************
741 * MP4_FindBox: find first box with i_type child of p_box
742 * return NULL if not found
743 *****************************************************************************/
744 MP4_Box_t *MP4_FindBox( MP4_Box_t *p_box, uint32_t i_type );
747 /*****************************************************************************
748 * MP4_FindNextBox: find next box with thesame type and at the same level
750 *****************************************************************************/
751 MP4_Box_t *MP4_FindNextBox( MP4_Box_t *p_box );
753 /*****************************************************************************
754 * MP4_FindNbBox: find the box i_number
755 *****************************************************************************/
756 MP4_Box_t *MP4_FindNbBox( MP4_Box_t *p_box, uint32_t i_number );
759 /*---------------------------------------------------------------------------*/
760 /****----------------------- Lower level functions -----------------------****/
762 /****------Use them only when you known what they really do and need------****/
764 /****---------------------------------------------------------------------****/
765 /*---------------------------------------------------------------------------*/
768 /**** ------- First some function to make abstract from input -------- */
770 /****************************************************************************
771 * MP4_InputStream create an stram with an input
773 ****************************************************************************/
774 MP4_Stream_t *MP4_InputStream( input_thread_t *p_input );
776 /****************************************************************************
777 * MP4_MemoryStream create a memory stream
778 * if p_buffer == NULL, will allocate a buffer of i_size, else
779 * it uses p_buffer XXX you have to unallocate yourself !
781 ****************************************************************************/
782 MP4_Stream_t *MP4_MemoryStream( input_thread_t *p_input,
783 int i_size, uint8_t *p_buffer );
785 /****************************************************************************
786 * MP4_ReadStream read from a MP4_Stream_t
788 ****************************************************************************/
789 int MP4_ReadStream( MP4_Stream_t *p_stream, uint8_t *p_buff, int i_size );
791 /****************************************************************************
792 * MP4_PeekStream guess it ;)
794 ****************************************************************************/
795 int MP4_PeekStream( MP4_Stream_t *p_stream, uint8_t **pp_peek, int i_size );
797 /****************************************************************************
798 * MP4_TellStream give absolute position in the stream
799 * XXX for a memory stream give position from begining of the buffer
800 ****************************************************************************/
801 off_t MP4_TellStream( MP4_Stream_t *p_stream );
803 /****************************************************************************
804 * MP4_SeekStream seek in a MP4_Stream_t
806 ****************************************************************************/
807 int MP4_SeekStream( MP4_Stream_t *p_stream, off_t i_pos);
811 /*****************************************************************************
812 * MP4_ReadBox : parse the actual box and the children if they exist
814 * RETURN : 1 if succes and 0 if it failed
815 *****************************************************************************/
816 int MP4_ReadBox( MP4_Stream_t *p_stream, MP4_Box_t *p_box, MP4_Box_t *p_father );
819 /*****************************************************************************
820 * MP4_ReadBoxCommon : Load only common parameters for all boxes
821 *****************************************************************************
822 * p_box need to be an already allocated MP4_Box_t, and all data
823 * will only be peek not read
825 * RETURN : 0 if it fail, 1 otherwise
826 *****************************************************************************/
827 int MP4_ReadBoxCommon( MP4_Stream_t *p_stream, MP4_Box_t *p_box );
830 /*****************************************************************************
831 * MP4_MP4_GotoBox : Go to this particular box
832 *****************************************************************************
833 * RETURN : 0 if it fail, 1 otherwise
834 *****************************************************************************/
835 int MP4_GotoBox( MP4_Stream_t *p_stream, MP4_Box_t *p_box );
838 /*****************************************************************************
839 * MP4_MP4_NextBox : Go to the next box wiithin p_box->p_father
840 *****************************************************************************
841 * if p_box == NULL, go to the next box in witch we are( at the begining ).
842 *****************************************************************************/
843 int MP4_NextBox( MP4_Stream_t *p_stream, MP4_Box_t *p_box );