1 /*****************************************************************************
2 * libmp4.h : LibMP4 library for mp4 module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001 VideoLAN
5 * $Id: libmp4.h,v 1.8 2003/03/11 18:57:50 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__mp3 VLC_FOURCC( '.', 'm', 'p', '3' )
96 #define FOURCC_ms02 VLC_FOURCC( 'm', 's', 0x0, 0x02 )
97 #define FOURCC_ms11 VLC_FOURCC( 'm', 's', 0x0, 0x11 )
98 #define FOURCC_ms55 VLC_FOURCC( 'm', 's', 0x0, 0x55 )
99 #define FOURCC_twos VLC_FOURCC( 't', 'w', 'o', 's' )
100 #define FOURCC_sowt VLC_FOURCC( 's', 'o', 'w', 't' )
101 #define FOURCC_QDMC VLC_FOURCC( 'Q', 'D', 'M', 'C' )
102 #define FOURCC_QDM2 VLC_FOURCC( 'Q', 'D', 'M', '2' )
103 #define FOURCC_ima4 VLC_FOURCC( 'i', 'm', 'a', '4' )
104 #define FOURCC_IMA4 VLC_FOURCC( 'I', 'M', 'A', '4' )
105 #define FOURCC_dvi VLC_FOURCC( 'd', 'v', 'i', ' ' )
106 #define FOURCC_MAC3 VLC_FOURCC( 'M', 'A', 'C', '3' )
107 #define FOURCC_MAC6 VLC_FOURCC( 'M', 'A', 'C', '6' )
108 #define FOURCC_alaw VLC_FOURCC( 'a', 'l', 'a', 'w' )
109 #define FOURCC_ulaw VLC_FOURCC( 'u', 'l', 'a', 'w' )
111 #define FOURCC_zlib VLC_FOURCC( 'z', 'l', 'i', 'b' )
112 #define FOURCC_SVQ1 VLC_FOURCC( 'S', 'V', 'Q', '1' )
113 #define FOURCC_SVQ3 VLC_FOURCC( 'S', 'V', 'Q', '3' )
114 #define FOURCC_3IV1 VLC_FOURCC( '3', 'I', 'V', '1' )
115 #define FOURCC_3IV2 VLC_FOURCC( '3', 'I', 'V', '2' )
116 #define FOURCC_h263 VLC_FOURCC( 'h', '2', '6', '3' )
117 #define FOURCC_DIVX VLC_FOURCC( 'D', 'I', 'V', 'X' )
118 #define FOURCC_cvid VLC_FOURCC( 'c', 'v', 'i', 'd' )
119 #define FOURCC_mjpa VLC_FOURCC( 'm', 'j', 'p', 'a' )
120 #define FOURCC_mjpb VLC_FOURCC( 'm', 'j', 'q', 't' )
121 #define FOURCC_mjqt VLC_FOURCC( 'm', 'j', 'h', 't' )
122 #define FOURCC_mjht VLC_FOURCC( 'm', 'j', 'p', 'b' )
124 #define FOURCC_dvc VLC_FOURCC( 'd', 'v', 'c', ' ' )
125 #define FOURCC_dvp VLC_FOURCC( 'd', 'v', 'p', ' ' )
126 #define FOURCC_raw VLC_FOURCC( 'r', 'a', 'w', ' ' )
128 #define FOURCC_jpeg VLC_FOURCC( 'j', 'p', 'e', 'g' )
131 #define FOURCC_rmra VLC_FOURCC( 'r', 'm', 'r', 'a' )
132 #define FOURCC_rmda VLC_FOURCC( 'r', 'm', 'd', 'a' )
133 #define FOURCC_rdrf VLC_FOURCC( 'r', 'd', 'r', 'f' )
134 #define FOURCC_rmdr VLC_FOURCC( 'r', 'm', 'd', 'r' )
135 #define FOURCC_rmvc VLC_FOURCC( 'r', 'm', 'v', 'c' )
136 #define FOURCC_rmcd VLC_FOURCC( 'r', 'm', 'c', 'd' )
137 #define FOURCC_rmqu VLC_FOURCC( 'r', 'm', 'q', 'u' )
138 #define FOURCC_alis VLC_FOURCC( 'a', 'l', 'i', 's' )
140 /* Do you want some debug information on all read boxes ? */
141 #define MP4_VERBOSE 1
143 /* memory stream and file stream object */
145 typedef struct MP4_Stream_s
147 int b_memory; /* do we uses a memory buffer */
149 input_thread_t *p_input;
151 off_t i_start; /* in the buffer position for memory stream */
160 /* uuid Universal Unique IDentifiers */
161 typedef struct UUID_s
166 /* specific structure for all boxes */
168 typedef struct MP4_Box_data_ftyp_s
170 uint32_t i_major_brand;
171 uint32_t i_minor_version;
173 uint32_t i_compatible_brands_count;
174 uint32_t *i_compatible_brands;
176 } MP4_Box_data_ftyp_t;
178 typedef struct MP4_Box_data_mvhd_s
183 uint64_t i_creation_time;
184 uint64_t i_modification_time;
185 uint32_t i_timescale;
191 uint32_t i_reserved2[2];
193 uint32_t i_predefined[6];
194 uint32_t i_next_track_id;
196 } MP4_Box_data_mvhd_t;
198 #define MP4_TRACK_ENABLED 0x000001
199 #define MP4_TRACK_IN_MOVIE 0x000002
200 #define MP4_TRACK_IN_PREVIEW 0x000004
201 typedef struct MP4_Box_data_tkhd_s
206 uint64_t i_creation_time;
207 uint64_t i_modification_time;
212 uint32_t i_reserved2[2];
214 int16_t i_predefined;
217 uint16_t i_reserved3;
222 } MP4_Box_data_tkhd_t;
224 typedef struct MP4_Box_data_mdhd_s
229 uint64_t i_creation_time;
230 uint64_t i_modification_time;
231 uint32_t i_timescale;
234 /* one bit for pad */
235 /* unsigned int(5)[3] language difference with 0x60*/
236 unsigned char i_language[3];
237 uint16_t i_predefined;
239 } MP4_Box_data_mdhd_t;
241 typedef struct MP4_Box_data_hdlr_s
246 uint32_t i_predefined;
247 uint32_t i_handler_type; /* "vide" "soun" "hint" "odsm"
248 "crsm" "sdsm" "m7sm" "ocsm"
251 unsigned char *psz_name; /* in UTF-8 */
253 } MP4_Box_data_hdlr_t;
255 typedef struct MP4_Box_data_vmhd_s
260 int16_t i_graphics_mode;
261 int16_t i_opcolor[3];
263 } MP4_Box_data_vmhd_t;
265 typedef struct MP4_Box_data_smhd_s
273 } MP4_Box_data_smhd_t;
275 typedef struct MP4_Box_data_hmhd_s
280 uint16_t i_max_PDU_size;
281 uint16_t i_avg_PDU_size;
282 uint32_t i_max_bitrate;
283 uint32_t i_avg_bitrate;
286 } MP4_Box_data_hmhd_t;
288 typedef struct MP4_Box_data_url_s
293 unsigned char *psz_location;
295 } MP4_Box_data_url_t;
297 typedef struct MP4_Box_data_urn_s
302 unsigned char *psz_name;
303 unsigned char *psz_location;
305 } MP4_Box_data_urn_t;
307 typedef struct MP4_Box_data_dref_s
312 uint32_t i_entry_count;
313 /* XXX it's also a container with i_entry_count entry */
314 } MP4_Box_data_dref_t;
316 typedef struct MP4_Box_data_stts_s
321 uint32_t i_entry_count;
322 uint32_t *i_sample_count; /* these are array */
323 int32_t *i_sample_delta;
325 } MP4_Box_data_stts_t;
327 typedef struct MP4_Box_data_ctts_s
332 uint32_t i_entry_count;
334 uint32_t *i_sample_count; /* these are array */
335 int32_t *i_sample_offset;
337 } MP4_Box_data_ctts_t;
340 typedef struct MP4_Box_data_sample_soun_s
342 uint8_t i_reserved1[6];
343 uint16_t i_data_reference_index;
345 //uint32_t i_reserved2[2];
346 uint16_t i_qt_version;
347 uint16_t i_qt_revision_level;
348 uint32_t i_qt_vendor;
350 uint16_t i_channelcount;
351 uint16_t i_samplesize;
352 uint16_t i_predefined;
353 uint16_t i_reserved3;
354 uint16_t i_sampleratehi; /* timescale of track */
355 uint16_t i_sampleratelo;
357 /* for version 1 (i_reserved1[0] == 1) */
358 uint32_t i_sample_per_packet;
359 uint32_t i_bytes_per_packet;
360 uint32_t i_bytes_per_frame;
361 uint32_t i_bytes_per_sample;
362 } MP4_Box_data_sample_soun_t;
364 typedef struct MP4_Box_data_sample_vide_s
366 uint8_t i_reserved1[6];
367 uint16_t i_data_reference_index;
369 uint16_t i_predefined1;
370 uint16_t i_reserved2;
371 uint32_t i_predefined2[3];
376 uint32_t i_horizresolution;
377 uint32_t i_vertresolution;
379 uint32_t i_reserved3;
380 uint16_t i_predefined3;
382 uint8_t i_compressorname[32];
385 int16_t i_predefined4;
387 } MP4_Box_data_sample_vide_t;
389 typedef struct MP4_Box_data_sample_hint_s
391 uint8_t i_reserved1[6];
392 uint16_t i_data_reference_index;
396 } MP4_Box_data_sample_hint_t;
398 typedef struct MP4_Box_data_moviehintinformation_rtp_s
400 uint32_t i_description_format;
401 unsigned char *psz_text;
403 } MP4_Box_data_moviehintinformation_rtp_t;
407 typedef struct MP4_Box_data_stsd_s
412 uint32_t i_entry_count;
414 /* it contains SampleEntry handled as if it was Box */
416 } MP4_Box_data_stsd_t;
419 typedef struct MP4_Box_data_stsz_s
424 uint32_t i_sample_size;
425 uint32_t i_sample_count;
427 uint32_t *i_entry_size; /* array , empty if i_sample_size != 0 */
429 } MP4_Box_data_stsz_t;
431 typedef struct MP4_Box_data_stz2_s
436 uint32_t i_sample_size; /* 24 bits */
437 uint8_t i_field_size;
438 uint32_t i_sample_count;
440 uint32_t *i_entry_size; /* array: unsigned int(i_field_size) entry_size */
442 } MP4_Box_data_stz2_t;
444 typedef struct MP4_Box_data_stsc_s
449 uint32_t i_entry_count;
451 uint32_t *i_first_chunk; /* theses are arrays */
452 uint32_t *i_samples_per_chunk;
453 uint32_t *i_sample_description_index;
455 } MP4_Box_data_stsc_t;
458 typedef struct MP4_Box_data_co64_s
463 uint32_t i_entry_count;
465 uint64_t *i_chunk_offset;
467 } MP4_Box_data_co64_t;
470 typedef struct MP4_Box_data_stss_s
475 uint32_t i_entry_count;
477 uint32_t *i_sample_number;
479 } MP4_Box_data_stss_t;
481 typedef struct MP4_Box_data_stsh_s
486 uint32_t i_entry_count;
488 uint32_t *i_shadowed_sample_number;
489 uint32_t *i_sync_sample_number;
491 } MP4_Box_data_stsh_t;
493 typedef struct MP4_Box_data_stdp_s
498 uint16_t *i_priority;
500 } MP4_Box_data_stdp_t;
502 typedef struct MP4_Box_data_padb_s
507 uint32_t i_sample_count;
509 uint16_t *i_reserved1; /* 1bit */
510 uint16_t *i_pad2; /* 3bits */
511 uint16_t *i_reserved2; /* 1bit */
512 uint16_t *i_pad1; /* 3bits */
515 } MP4_Box_data_padb_t;
518 typedef struct MP4_Box_data_elst_s
523 uint32_t i_entry_count;
525 uint64_t *i_segment_duration;
526 int64_t *i_media_time;
527 uint16_t *i_media_rate_integer;
528 uint16_t *i_media_rate_fraction;
531 } MP4_Box_data_elst_t;
533 typedef struct MP4_Box_data_cprt_s
538 unsigned char i_language[3];
540 unsigned char *psz_notice;
541 } MP4_Box_data_cprt_t;
544 /* DecoderConfigDescriptor */
545 typedef struct MP4_descriptor_decoder_config_s
547 uint8_t i_objectTypeIndication;
548 uint8_t i_streamType;
554 int i_decoder_specific_info_len;
555 uint8_t *p_decoder_specific_info;
556 /* some other stuff */
558 } MP4_descriptor_decoder_config_t;
560 typedef struct MP4_descriptor_SL_config_s
563 int i_dummy; /* ANSI C forbids empty structures */
565 } MP4_descriptor_SL_config_t;
568 typedef struct MP4_descriptor_ES_s
571 int b_stream_dependence;
574 int i_stream_priority;
576 int i_depend_on_ES_ID; /* if b_stream_dependence set */
578 unsigned char *psz_URL;
580 uint16_t i_OCR_ES_ID; /* if b_OCRstream */
581 MP4_descriptor_decoder_config_t *p_decConfigDescr;
583 MP4_descriptor_SL_config_t *p_slConfigDescr;
585 /* some other stuff ... */
587 } MP4_descriptor_ES_t;
590 typedef struct MP4_Box_data_esds_s
595 MP4_descriptor_ES_t es_descriptor;
597 } MP4_Box_data_esds_t;
600 typedef struct MP4_Box_data_dcom_s
602 uint32_t i_algorithm; /* fourcc */
604 } MP4_Box_data_dcom_t;
606 typedef struct MP4_Box_data_cmvd_s
608 uint32_t i_uncompressed_size;
609 uint32_t i_compressed_size;
611 int b_compressed; /* Set to 1 if compressed data, 0 if uncompressed */
614 } MP4_Box_data_cmvd_t;
616 typedef struct MP4_Box_data_cmov_s
618 struct MP4_Box_s *p_moov; /* uncompressed moov */
620 } MP4_Box_data_cmov_t;
622 typedef struct MP4_Box_data_rdrf_s
630 } MP4_Box_data_rdrf_t;
632 typedef struct MP4_Box_data_rmdr_s
639 } MP4_Box_data_rmdr_t;
641 typedef struct MP4_Box_data_rmvc_s
646 uint32_t i_gestaltType;
649 uint16_t i_checkType; /* 0: val1 is version min
650 1: gestalt value & val2 == val1 */
652 } MP4_Box_data_rmvc_t;
654 typedef struct MP4_Box_data_rmcd_s
660 } MP4_Box_data_rmcd_t;
662 typedef struct MP4_Box_data_rmqu_s
666 } MP4_Box_data_rmqu_t;
669 typedef struct MP4_Box_data__s
678 typedef union MP4_Box_data_s
680 MP4_Box_data_ftyp_t *p_ftyp;
681 MP4_Box_data_mvhd_t *p_mvhd;
682 MP4_Box_data_tkhd_t *p_tkhd;
683 MP4_Box_data_mdhd_t *p_mdhd;
684 MP4_Box_data_hdlr_t *p_hdlr;
685 MP4_Box_data_vmhd_t *p_vmhd;
686 MP4_Box_data_smhd_t *p_smhd;
687 MP4_Box_data_hmhd_t *p_hmhd;
688 MP4_Box_data_url_t *p_url;
689 MP4_Box_data_urn_t *p_urn;
690 MP4_Box_data_dref_t *p_dref;
691 MP4_Box_data_stts_t *p_stts;
692 MP4_Box_data_ctts_t *p_ctts;
693 MP4_Box_data_stsd_t *p_stsd;
694 MP4_Box_data_sample_vide_t *p_sample_vide;
695 MP4_Box_data_sample_soun_t *p_sample_soun;
696 MP4_Box_data_sample_hint_t *p_sample_hint;
698 MP4_Box_data_esds_t *p_esds;
700 MP4_Box_data_stsz_t *p_stsz;
701 MP4_Box_data_stz2_t *p_stz2;
702 MP4_Box_data_stsc_t *p_stsc;
703 MP4_Box_data_co64_t *p_co64;
704 MP4_Box_data_stss_t *p_stss;
705 MP4_Box_data_stsh_t *p_stsh;
706 MP4_Box_data_stdp_t *p_stdp;
707 MP4_Box_data_padb_t *p_padb;
708 MP4_Box_data_elst_t *p_elst;
709 MP4_Box_data_cprt_t *p_cprt;
711 MP4_Box_data_dcom_t *p_dcom;
712 MP4_Box_data_cmvd_t *p_cmvd;
713 MP4_Box_data_cmov_t *p_cmov;
715 MP4_Box_data_moviehintinformation_rtp_t p_moviehintinformation_rtp;
717 MP4_Box_data_rdrf_t *p_rdrf;
718 MP4_Box_data_rmdr_t *p_rmdr;
719 MP4_Box_data_rmqu_t *p_rmqu;
720 MP4_Box_data_rmvc_t *p_rmvc;
722 void *p_data; /* for unknow type */
727 /* the most basic structure */
728 typedef struct MP4_Box_s
730 off_t i_pos; /* absolute position */
733 uint32_t i_shortsize;
735 UUID_t i_uuid; /* Set if i_type == "uuid" */
737 uint64_t i_size; /* always set so use it */
739 MP4_Box_data_t data; /* union of pointers on extended data depending
740 on i_type (or i_usertype) */
742 struct MP4_Box_s *p_father; /* pointer on the father Box */
744 struct MP4_Box_s *p_first; /* pointer on the first child Box */
745 struct MP4_Box_s *p_last;
747 struct MP4_Box_s *p_next; /* pointer on the next boxes at the same level */
751 /*---------------------------------------------------------------------------*/
753 /****----------------------- High level functions ------------------------****/
755 /*---------------------------------------------------------------------------*/
757 /*****************************************************************************
758 * Function for manipulate stream easily
759 *****************************************************************************/
761 off_t MP4_TellAbsolute( input_thread_t *p_input );
762 int MP4_SeekAbsolute( input_thread_t *p_input, off_t i_pos);
763 int MP4_ReadData( input_thread_t *p_input, uint8_t *p_buff, int i_size );
765 /*****************************************************************************
766 * MP4_BoxGetRoot : Parse the entire file, and create all boxes in memory
767 *****************************************************************************
768 * The first box is a virtual box "root" and is the father for all first
771 * RETURN : 1 if succes and 0 if it failed
772 *****************************************************************************/
773 int MP4_BoxGetRoot( input_thread_t *p_input, MP4_Box_t *p_root );
775 /*****************************************************************************
776 * MP4_FreeBox : free memory allocated after read with MP4_ReadBox
777 * or MP4_BoxGetRoot, this means also children boxes
778 * XXX : all children have to be allocated by a malloc !! and
779 * p_box isn't freeing
780 *****************************************************************************/
781 void MP4_BoxFree( input_thread_t *p_input, MP4_Box_t *p_box );
783 /*****************************************************************************
784 * MP4_DumpBoxStructure: print the structure of the p_box
785 *****************************************************************************
786 * Usefull while debugging
787 *****************************************************************************/
788 void MP4_BoxDumpStructure( input_thread_t *p_input, MP4_Box_t *p_box );
791 /*****************************************************************************
792 * MP4_BoxGet: find a box given a path relative to p_box
793 *****************************************************************************
794 * Path Format: . .. / as usual
795 * [number] to specifie box number ex: trak[12]
799 *****************************************************************************/
800 MP4_Box_t *MP4_BoxGet( MP4_Box_t *p_box, char *psz_fmt, ... );
802 /*****************************************************************************
803 * MP4_BoxCount: find number of box given a path relative to p_box
804 *****************************************************************************
805 * Path Format: . .. / as usual
806 * [number] to specifie box number ex: trak[12]
810 *****************************************************************************/
811 int MP4_BoxCount( MP4_Box_t *p_box, char *psz_fmt, ... );
815 /*---------------------------------------------------------------------------*/
817 /****---------------------- Medium level functions -----------------------****/
819 /*---------------------------------------------------------------------------*/
822 /*****************************************************************************
823 * MP4_CountBox: given a box, count how many child have the requested type
824 * FIXME : support GUUID
825 *****************************************************************************/
826 int MP4_CountBox( MP4_Box_t *p_box, uint32_t i_type );
829 /*****************************************************************************
830 * MP4_FindBox: find first box with i_type child of p_box
831 * return NULL if not found
832 *****************************************************************************/
833 MP4_Box_t *MP4_FindBox( MP4_Box_t *p_box, uint32_t i_type );
836 /*****************************************************************************
837 * MP4_FindNextBox: find next box with thesame type and at the same level
839 *****************************************************************************/
840 MP4_Box_t *MP4_FindNextBox( MP4_Box_t *p_box );
842 /*****************************************************************************
843 * MP4_FindNbBox: find the box i_number
844 *****************************************************************************/
845 MP4_Box_t *MP4_FindNbBox( MP4_Box_t *p_box, uint32_t i_number );
848 /*---------------------------------------------------------------------------*/
849 /****----------------------- Lower level functions -----------------------****/
851 /****------Use them only when you known what they really do and need------****/
853 /****---------------------------------------------------------------------****/
854 /*---------------------------------------------------------------------------*/
857 /**** ------- First some function to make abstract from input -------- */
859 /****************************************************************************
860 * MP4_InputStream create an stram with an input
862 ****************************************************************************/
863 MP4_Stream_t *MP4_InputStream( input_thread_t *p_input );
865 /****************************************************************************
866 * MP4_MemoryStream create a memory stream
867 * if p_buffer == NULL, will allocate a buffer of i_size, else
868 * it uses p_buffer XXX you have to unallocate yourself !
870 ****************************************************************************/
871 MP4_Stream_t *MP4_MemoryStream( input_thread_t *p_input,
872 int i_size, uint8_t *p_buffer );
874 /****************************************************************************
875 * MP4_ReadStream read from a MP4_Stream_t
877 ****************************************************************************/
878 int MP4_ReadStream( MP4_Stream_t *p_stream, uint8_t *p_buff, int i_size );
880 /****************************************************************************
881 * MP4_PeekStream guess it ;)
883 ****************************************************************************/
884 int MP4_PeekStream( MP4_Stream_t *p_stream, uint8_t **pp_peek, int i_size );
886 /****************************************************************************
887 * MP4_TellStream give absolute position in the stream
888 * XXX for a memory stream give position from begining of the buffer
889 ****************************************************************************/
890 off_t MP4_TellStream( MP4_Stream_t *p_stream );
892 /****************************************************************************
893 * MP4_SeekStream seek in a MP4_Stream_t
895 ****************************************************************************/
896 int MP4_SeekStream( MP4_Stream_t *p_stream, off_t i_pos);
900 /*****************************************************************************
901 * MP4_ReadBox : parse the actual box and the children if they exist
903 * RETURN : 1 if succes and 0 if it failed
904 *****************************************************************************/
905 int MP4_ReadBox( MP4_Stream_t *p_stream, MP4_Box_t *p_box, MP4_Box_t *p_father );
908 /*****************************************************************************
909 * MP4_ReadBoxCommon : Load only common parameters for all boxes
910 *****************************************************************************
911 * p_box need to be an already allocated MP4_Box_t, and all data
912 * will only be peek not read
914 * RETURN : 0 if it fail, 1 otherwise
915 *****************************************************************************/
916 int MP4_ReadBoxCommon( MP4_Stream_t *p_stream, MP4_Box_t *p_box );
919 /*****************************************************************************
920 * MP4_MP4_GotoBox : Go to this particular box
921 *****************************************************************************
922 * RETURN : 0 if it fail, 1 otherwise
923 *****************************************************************************/
924 int MP4_GotoBox( MP4_Stream_t *p_stream, MP4_Box_t *p_box );
927 /*****************************************************************************
928 * MP4_MP4_NextBox : Go to the next box wiithin p_box->p_father
929 *****************************************************************************
930 * if p_box == NULL, go to the next box in witch we are( at the begining ).
931 *****************************************************************************/
932 int MP4_NextBox( MP4_Stream_t *p_stream, MP4_Box_t *p_box );