1 /*****************************************************************************
2 * mp4.c : MP4 file input module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001-2004 the VideoLAN team
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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
21 *****************************************************************************/
23 /*****************************************************************************
25 *****************************************************************************/
31 #include <vlc_common.h>
32 #include <vlc_plugin.h>
35 #include <vlc_demux.h>
37 #include <vlc_charset.h>
38 #include <vlc_iso_lang.h>
40 #include <vlc_input.h>
45 /*****************************************************************************
47 *****************************************************************************/
48 static int Open ( vlc_object_t * );
49 static void Close( vlc_object_t * );
52 set_category( CAT_INPUT )
53 set_subcategory( SUBCAT_INPUT_DEMUX )
54 set_description( N_("MP4 stream demuxer") )
55 set_shortname( N_("MP4") )
56 set_capability( "demux", 242 )
57 set_callbacks( Open, Close )
60 /*****************************************************************************
62 *****************************************************************************/
63 static int Demux ( demux_t * );
64 static int DemuxRef( demux_t *p_demux ){ (void)p_demux; return 0;}
65 static int Seek ( demux_t *, mtime_t );
66 static int Control ( demux_t *, int, va_list );
68 /* Contain all information about a chunk */
71 uint64_t i_offset; /* absolute position of this chunk in the file */
72 uint32_t i_sample_description_index; /* index for SampleEntry to use */
73 uint32_t i_sample_count; /* how many samples in this chunk */
74 uint32_t i_sample_first; /* index of the first sample in this chunk */
76 /* now provide way to calculate pts, dts, and offset without too
77 much memory and with fast access */
79 /* with this we can calculate dts/pts without waste memory */
81 uint32_t *p_sample_count_dts;
82 uint32_t *p_sample_delta_dts; /* dts delta */
84 uint32_t *p_sample_count_pts;
85 int32_t *p_sample_offset_pts; /* pts-dts */
87 /* TODO if needed add pts
88 but quickly *add* support for edts and seeking */
92 /* Contain all needed information for read all track with vlc */
95 unsigned int i_track_ID;/* this should be unique */
97 int b_ok; /* The track is usable */
98 int b_enable; /* is the trak enable by default */
99 bool b_selected; /* is the trak being played */
100 bool b_chapter; /* True when used for chapter only */
107 /* display size only ! */
111 /* more internal data */
112 uint64_t i_timescale; /* time scale for this track only */
115 int i_elst; /* current elst */
116 int64_t i_elst_time; /* current elst start time (in movie time scale)*/
117 MP4_Box_t *p_elst; /* elst (could be NULL) */
119 /* give the next sample to read, i_chunk is to find quickly where
120 the sample is located */
121 uint32_t i_sample; /* next sample to read */
122 uint32_t i_chunk; /* chunk where next sample is stored */
123 /* total count of chunk and sample */
124 uint32_t i_chunk_count;
125 uint32_t i_sample_count;
127 mp4_chunk_t *chunk; /* always defined for each chunk */
129 /* sample size, p_sample_size defined only if i_sample_size == 0
130 else i_sample_size is size for all sample */
131 uint32_t i_sample_size;
132 uint32_t *p_sample_size; /* XXX perhaps add file offset if take
133 too much time to do sumations each time*/
135 MP4_Box_t *p_stbl; /* will contain all timing information */
136 MP4_Box_t *p_stsd; /* will contain all data to initialize decoder */
137 MP4_Box_t *p_sample;/* point on actual sdsd */
148 MP4_Box_t *p_root; /* container for the whole file */
152 uint64_t i_time; /* time position of the presentation
153 * in movie timescale */
154 uint64_t i_timescale; /* movie time scale */
155 uint64_t i_duration; /* movie duration */
156 unsigned int i_tracks; /* number of tracks */
157 mp4_track_t *track; /* array of track */
160 MP4_Box_t *p_tref_chap;
163 input_title_t *p_title;
166 /*****************************************************************************
167 * Declaration of local function
168 *****************************************************************************/
169 static void MP4_TrackCreate ( demux_t *, mp4_track_t *, MP4_Box_t *, bool b_force_enable );
170 static void MP4_TrackDestroy( mp4_track_t * );
172 static int MP4_TrackSelect ( demux_t *, mp4_track_t *, mtime_t );
173 static void MP4_TrackUnselect(demux_t *, mp4_track_t * );
175 static int MP4_TrackSeek ( demux_t *, mp4_track_t *, mtime_t );
177 static uint64_t MP4_TrackGetPos ( mp4_track_t * );
178 static int MP4_TrackSampleSize( mp4_track_t * );
179 static int MP4_TrackNextSample( demux_t *, mp4_track_t * );
180 static void MP4_TrackSetELST( demux_t *, mp4_track_t *, int64_t );
182 static void MP4_UpdateSeekpoint( demux_t * );
183 static const char *MP4_ConvertMacCode( uint16_t );
185 /* Return time in s of a track */
186 static inline int64_t MP4_TrackGetDTS( demux_t *p_demux, mp4_track_t *p_track )
188 #define chunk p_track->chunk[p_track->i_chunk]
190 unsigned int i_index = 0;
191 unsigned int i_sample = p_track->i_sample - chunk.i_sample_first;
192 int64_t i_dts = chunk.i_first_dts;
194 while( i_sample > 0 )
196 if( i_sample > chunk.p_sample_count_dts[i_index] )
198 i_dts += chunk.p_sample_count_dts[i_index] *
199 chunk.p_sample_delta_dts[i_index];
200 i_sample -= chunk.p_sample_count_dts[i_index];
205 i_dts += i_sample * chunk.p_sample_delta_dts[i_index];
212 /* now handle elst */
213 if( p_track->p_elst )
215 demux_sys_t *p_sys = p_demux->p_sys;
216 MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;
218 /* convert to offset */
219 if( ( elst->i_media_rate_integer[p_track->i_elst] > 0 ||
220 elst->i_media_rate_fraction[p_track->i_elst] > 0 ) &&
221 elst->i_media_time[p_track->i_elst] > 0 )
223 i_dts -= elst->i_media_time[p_track->i_elst];
226 /* add i_elst_time */
227 i_dts += p_track->i_elst_time * p_track->i_timescale /
230 if( i_dts < 0 ) i_dts = 0;
233 return INT64_C(1000000) * i_dts / p_track->i_timescale;
236 static inline int64_t MP4_TrackGetPTSDelta( mp4_track_t *p_track )
238 mp4_chunk_t *ck = &p_track->chunk[p_track->i_chunk];
239 unsigned int i_index = 0;
240 unsigned int i_sample = p_track->i_sample - ck->i_sample_first;
242 if( ck->p_sample_count_pts == NULL || ck->p_sample_offset_pts == NULL )
245 for( i_index = 0;; i_index++ )
247 if( i_sample < ck->p_sample_count_pts[i_index] )
248 return ck->p_sample_offset_pts[i_index] * INT64_C(1000000) /
249 (int64_t)p_track->i_timescale;
251 i_sample -= ck->p_sample_count_pts[i_index];
255 static inline int64_t MP4_GetMoviePTS(demux_sys_t *p_sys )
257 return INT64_C(1000000) * p_sys->i_time / p_sys->i_timescale;
260 static void LoadChapter( demux_t *p_demux );
262 /*****************************************************************************
263 * Open: check file and initializes MP4 structures
264 *****************************************************************************/
265 static int Open( vlc_object_t * p_this )
267 demux_t *p_demux = (demux_t *)p_this;
270 const uint8_t *p_peek;
281 /* A little test to see if it could be a mp4 */
282 if( stream_Peek( p_demux->s, &p_peek, 8 ) < 8 ) return VLC_EGENERIC;
284 switch( VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] ) )
295 case VLC_FOURCC( 'p', 'n', 'o', 't' ):
302 stream_Control( p_demux->s, STREAM_CAN_SEEK, &b_seekable );
305 msg_Warn( p_demux, "MP4 plugin discarded (unseekable)" );
309 /*Set exported functions */
310 p_demux->pf_demux = Demux;
311 p_demux->pf_control = Control;
313 /* create our structure that will contains all data */
314 p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
315 memset( p_sys, 0, sizeof( demux_sys_t ) );
317 /* Now load all boxes ( except raw data ) */
318 if( ( p_sys->p_root = MP4_BoxGetRoot( p_demux->s ) ) == NULL )
320 msg_Warn( p_demux, "MP4 plugin discarded (not a valid file)" );
324 MP4_BoxDumpStructure( p_demux->s, p_sys->p_root );
326 if( ( p_ftyp = MP4_BoxGet( p_sys->p_root, "/ftyp" ) ) )
328 switch( p_ftyp->data.p_ftyp->i_major_brand )
332 "ISO Media file (isom) version %d.",
333 p_ftyp->data.p_ftyp->i_minor_version );
337 "unrecognized major file specification (%4.4s).",
338 (char*)&p_ftyp->data.p_ftyp->i_major_brand );
344 msg_Dbg( p_demux, "file type box missing (assuming ISO Media file)" );
347 /* the file need to have one moov box */
348 if( MP4_BoxCount( p_sys->p_root, "/moov" ) <= 0 )
350 MP4_Box_t *p_foov = MP4_BoxGet( p_sys->p_root, "/foov" );
354 msg_Err( p_demux, "MP4 plugin discarded (no moov box)" );
357 /* we have a free box as a moov, rename it */
358 p_foov->i_type = FOURCC_moov;
361 if( ( p_rmra = MP4_BoxGet( p_sys->p_root, "/moov/rmra" ) ) )
363 int i_count = MP4_BoxCount( p_rmra, "rmda" );
366 msg_Dbg( p_demux, "detected playlist mov file (%d ref)", i_count );
368 input_thread_t *p_input = demux_GetParentInput( p_demux );
369 input_item_t *p_current = input_GetItem( p_input );
371 for( i = 0; i < i_count; i++ )
373 MP4_Box_t *p_rdrf = MP4_BoxGet( p_rmra, "rmda[%d]/rdrf", i );
377 if( !p_rdrf || !( psz_ref = strdup( p_rdrf->data.p_rdrf->psz_ref ) ) )
381 i_ref_type = p_rdrf->data.p_rdrf->i_ref_type;
383 msg_Dbg( p_demux, "new ref=`%s' type=%4.4s",
384 psz_ref, (char*)&i_ref_type );
386 if( i_ref_type == VLC_FOURCC( 'u', 'r', 'l', ' ' ) )
388 if( strstr( psz_ref, "qt5gateQT" ) )
390 msg_Dbg( p_demux, "ignoring pseudo ref =`%s'", psz_ref );
393 if( !strncmp( psz_ref, "http://", 7 ) ||
394 !strncmp( psz_ref, "rtsp://", 7 ) )
401 char *psz_path = strdup( p_demux->psz_path );
402 char *end = strrchr( psz_path, '/' );
403 if( end ) end[1] = '\0';
404 else *psz_path = '\0';
406 if( asprintf( &psz_absolute, "%s://%s%s",
407 p_demux->psz_access, psz_path, psz_ref ) < 0 )
411 psz_ref = psz_absolute;
414 msg_Dbg( p_demux, "adding ref = `%s'", psz_ref );
415 input_item_t *p_input = input_item_New( p_demux, psz_ref, NULL );
416 input_item_CopyOptions( p_current, p_input );
417 input_item_AddSubItem( p_current, p_input );
418 vlc_gc_decref( p_input );
422 msg_Err( p_demux, "unknown ref type=%4.4s FIXME (send a bug report)",
423 (char*)&p_rdrf->data.p_rdrf->i_ref_type );
427 vlc_object_release( p_input );
430 if( !(p_mvhd = MP4_BoxGet( p_sys->p_root, "/moov/mvhd" ) ) )
434 msg_Err( p_demux, "cannot find /moov/mvhd" );
439 msg_Warn( p_demux, "cannot find /moov/mvhd (pure ref file)" );
440 p_demux->pf_demux = DemuxRef;
446 p_sys->i_timescale = p_mvhd->data.p_mvhd->i_timescale;
447 if( p_sys->i_timescale == 0 )
449 msg_Err( p_this, "bad timescale" );
452 p_sys->i_duration = p_mvhd->data.p_mvhd->i_duration;
455 if( !( p_sys->i_tracks = MP4_BoxCount( p_sys->p_root, "/moov/trak" ) ) )
457 msg_Err( p_demux, "cannot find any /moov/trak" );
460 msg_Dbg( p_demux, "found %d track%c",
462 p_sys->i_tracks ? 's':' ' );
464 /* allocate memory */
465 p_sys->track = calloc( p_sys->i_tracks, sizeof( mp4_track_t ) );
466 if( p_sys->track == NULL )
468 memset( p_sys->track, 0, p_sys->i_tracks * sizeof( mp4_track_t ) );
470 /* Search the first chap reference (like quicktime) and
471 * check that at least 1 stream is enabled */
472 p_sys->p_tref_chap = NULL;
473 b_enabled_es = false;
474 for( i = 0; i < p_sys->i_tracks; i++ )
476 MP4_Box_t *p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
479 MP4_Box_t *p_tkhd = MP4_BoxGet( p_trak, "tkhd" );
480 if( p_tkhd && (p_tkhd->data.p_tkhd->i_flags&MP4_TRACK_ENABLED) )
483 MP4_Box_t *p_chap = MP4_BoxGet( p_trak, "tref/chap", i );
484 if( p_chap && p_chap->data.p_tref_generic->i_entry_count > 0 && !p_sys->p_tref_chap )
485 p_sys->p_tref_chap = p_chap;
488 /* now process each track and extract all usefull information */
489 for( i = 0; i < p_sys->i_tracks; i++ )
491 p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
492 MP4_TrackCreate( p_demux, &p_sys->track[i], p_trak, !b_enabled_es );
494 if( p_sys->track[i].b_ok && !p_sys->track[i].b_chapter )
497 switch( p_sys->track[i].fmt.i_cat )
506 psz_cat = "subtitle";
514 msg_Dbg( p_demux, "adding track[Id 0x%x] %s (%s) language %s",
515 p_sys->track[i].i_track_ID, psz_cat,
516 p_sys->track[i].b_enable ? "enable":"disable",
517 p_sys->track[i].fmt.psz_language ?
518 p_sys->track[i].fmt.psz_language : "undef" );
520 else if( p_sys->track[i].b_ok && p_sys->track[i].b_chapter )
522 msg_Dbg( p_demux, "using track[Id 0x%x] for chapter language %s",
523 p_sys->track[i].i_track_ID,
524 p_sys->track[i].fmt.psz_language ?
525 p_sys->track[i].fmt.psz_language : "undef" );
529 msg_Dbg( p_demux, "ignoring track[Id 0x%x]",
530 p_sys->track[i].i_track_ID );
535 LoadChapter( p_demux );
542 MP4_BoxFree( p_demux->s, p_sys->p_root );
548 /*****************************************************************************
549 * Demux: read packet and send them to decoders
550 *****************************************************************************
551 * TODO check for newly selected track (ie audio upt to now )
552 *****************************************************************************/
553 static int Demux( demux_t *p_demux )
555 demux_sys_t *p_sys = p_demux->p_sys;
556 unsigned int i_track;
559 unsigned int i_track_selected;
561 /* check for newly selected/unselected track */
562 for( i_track = 0, i_track_selected = 0; i_track < p_sys->i_tracks;
565 mp4_track_t *tk = &p_sys->track[i_track];
568 if( !tk->b_ok || tk->b_chapter ||
569 ( tk->b_selected && tk->i_sample >= tk->i_sample_count ) )
574 es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b );
576 if( tk->b_selected && !b )
578 MP4_TrackUnselect( p_demux, tk );
580 else if( !tk->b_selected && b)
582 MP4_TrackSelect( p_demux, tk, MP4_GetMoviePTS( p_sys ) );
591 if( i_track_selected <= 0 )
593 p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
594 if( p_sys->i_timescale > 0 )
596 int64_t i_length = (mtime_t)1000000 *
597 (mtime_t)p_sys->i_duration /
598 (mtime_t)p_sys->i_timescale;
599 if( MP4_GetMoviePTS( p_sys ) >= i_length )
604 msg_Warn( p_demux, "no track selected, exiting..." );
609 MP4_UpdateSeekpoint( p_demux );
611 /* first wait for the good time to read a packet */
612 es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr + 1 );
614 p_sys->i_pcr = MP4_GetMoviePTS( p_sys );
616 /* we will read 100ms for each stream so ...*/
617 p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
619 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
621 mp4_track_t *tk = &p_sys->track[i_track];
623 if( !tk->b_ok || tk->b_chapter || !tk->b_selected || tk->i_sample >= tk->i_sample_count )
626 while( MP4_TrackGetDTS( p_demux, tk ) < MP4_GetMoviePTS( p_sys ) )
629 msg_Dbg( p_demux, "tk(%i)=%lld mv=%lld", i_track,
630 MP4_TrackGetDTS( p_demux, tk ),
631 MP4_GetMoviePTS( p_sys ) );
634 if( MP4_TrackSampleSize( tk ) > 0 )
640 if( stream_Seek( p_demux->s, MP4_TrackGetPos( tk ) ) )
642 msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
644 MP4_TrackUnselect( p_demux, tk );
650 stream_Block( p_demux->s, MP4_TrackSampleSize(tk) )) )
652 msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
654 MP4_TrackUnselect( p_demux, tk );
658 if( tk->b_drms && tk->p_drms )
663 drms_get_p_key( tk->p_drms, p_key );
665 for( size_t i_pos = tk->p_skcr->data.p_skcr->i_init; i_pos < p_block->i_buffer; )
667 int n = __MIN( tk->p_skcr->data.p_skcr->i_encr, p_block->i_buffer - i_pos );
668 drms_decrypt( tk->p_drms, (uint32_t*)&p_block->p_buffer[i_pos], n, p_key );
670 i_pos += __MIN( tk->p_skcr->data.p_skcr->i_decr, p_block->i_buffer - i_pos );
675 drms_decrypt( tk->p_drms, (uint32_t*)p_block->p_buffer,
676 p_block->i_buffer, NULL );
679 else if( tk->fmt.i_cat == SPU_ES )
681 if( tk->fmt.i_codec == VLC_FOURCC( 's', 'u', 'b', 't' ) &&
682 p_block->i_buffer >= 2 )
684 uint16_t i_size = GetWBE( p_block->p_buffer );
686 if( i_size + 2 <= p_block->i_buffer )
689 /* remove the length field, and append a '\0' */
690 memmove( &p_block->p_buffer[0],
691 &p_block->p_buffer[2], i_size );
692 p_block->p_buffer[i_size] = '\0';
693 p_block->i_buffer = i_size + 1;
695 /* convert \r -> \n */
696 while( ( p = strchr((char *) p_block->p_buffer, '\r' ) ) )
704 p_block->i_buffer = 0;
709 p_block->i_dts = MP4_TrackGetDTS( p_demux, tk ) + 1;
711 i_delta = MP4_TrackGetPTSDelta( tk );
713 p_block->i_pts = p_block->i_dts + i_delta;
714 else if( tk->fmt.i_cat != VIDEO_ES )
715 p_block->i_pts = p_block->i_dts;
719 if( !tk->b_drms || ( tk->b_drms && tk->p_drms ) )
720 es_out_Send( p_demux->out, tk->p_es, p_block );
724 if( MP4_TrackNextSample( p_demux, tk ) )
732 static void MP4_UpdateSeekpoint( demux_t *p_demux )
734 demux_sys_t *p_sys = p_demux->p_sys;
737 if( !p_sys->p_title )
739 i_time = MP4_GetMoviePTS( p_sys );
740 for( i = 0; i < p_sys->p_title->i_seekpoint; i++ )
742 if( i_time < p_sys->p_title->seekpoint[i]->i_time_offset )
747 if( i != p_demux->info.i_seekpoint && i >= 0 )
749 p_demux->info.i_seekpoint = i;
750 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
753 /*****************************************************************************
755 ******************************************************************************/
756 static int Seek( demux_t *p_demux, mtime_t i_date )
758 demux_sys_t *p_sys = p_demux->p_sys;
759 unsigned int i_track;
761 /* First update update global time */
762 p_sys->i_time = i_date * p_sys->i_timescale / 1000000;
763 p_sys->i_pcr = i_date;
765 /* Now for each stream try to go to this time */
766 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
768 mp4_track_t *tk = &p_sys->track[i_track];
769 MP4_TrackSeek( p_demux, tk, i_date );
771 MP4_UpdateSeekpoint( p_demux );
773 es_out_Control( p_demux->out, ES_OUT_SET_NEXT_DISPLAY_TIME, i_date );
778 /*****************************************************************************
780 *****************************************************************************/
781 static int Control( demux_t *p_demux, int i_query, va_list args )
783 demux_sys_t *p_sys = p_demux->p_sys;
790 case DEMUX_GET_POSITION:
791 pf = (double*)va_arg( args, double * );
792 if( p_sys->i_duration > 0 )
794 *pf = (double)p_sys->i_time / (double)p_sys->i_duration;
802 case DEMUX_SET_POSITION:
803 f = (double)va_arg( args, double );
804 if( p_sys->i_timescale > 0 )
806 i64 = (int64_t)( f * (double)1000000 *
807 (double)p_sys->i_duration /
808 (double)p_sys->i_timescale );
809 return Seek( p_demux, i64 );
811 else return VLC_SUCCESS;
814 pi64 = (int64_t*)va_arg( args, int64_t * );
815 if( p_sys->i_timescale > 0 )
817 *pi64 = (mtime_t)1000000 *
818 (mtime_t)p_sys->i_time /
819 (mtime_t)p_sys->i_timescale;
825 i64 = (int64_t)va_arg( args, int64_t );
826 return Seek( p_demux, i64 );
828 case DEMUX_GET_LENGTH:
829 pi64 = (int64_t*)va_arg( args, int64_t * );
830 if( p_sys->i_timescale > 0 )
832 *pi64 = (mtime_t)1000000 *
833 (mtime_t)p_sys->i_duration /
834 (mtime_t)p_sys->i_timescale;
840 msg_Warn( p_demux, "DEMUX_GET_FPS unimplemented !!" );
845 vlc_meta_t *p_meta = (vlc_meta_t *)va_arg( args, vlc_meta_t*);
846 MP4_Box_t *p_0xa9xxx;
848 MP4_Box_t *p_udta = MP4_BoxGet( p_sys->p_root, "/moov/udta/meta/ilst" );
851 p_udta = MP4_BoxGet( p_sys->p_root, "/moov/udta" );
858 for( p_0xa9xxx = p_udta->p_first; p_0xa9xxx != NULL;
859 p_0xa9xxx = p_0xa9xxx->p_next )
862 if( !p_0xa9xxx || !p_0xa9xxx->data.p_0xa9xxx )
865 /* FIXME FIXME: should convert from whatever the character
866 * encoding of MP4 meta data is to UTF-8. */
867 #define SET(fct) do { char *psz_utf = strdup( p_0xa9xxx->data.p_0xa9xxx->psz_text ? p_0xa9xxx->data.p_0xa9xxx->psz_text : "" ); \
868 if( psz_utf ) { EnsureUTF8( psz_utf ); \
869 fct( p_meta, psz_utf ); free( psz_utf ); } } while(0)
871 /* XXX Becarefull p_udta can have box that are not 0xa9xx */
872 switch( p_0xa9xxx->i_type )
874 case FOURCC_0xa9nam: /* Full name */
875 SET( vlc_meta_SetTitle );
878 SET( vlc_meta_SetArtist );
881 SET( vlc_meta_SetArtist );
884 SET( vlc_meta_SetCopyright );
886 case FOURCC_0xa9day: /* Creation Date */
887 SET( vlc_meta_SetDate );
889 case FOURCC_0xa9des: /* Description */
890 SET( vlc_meta_SetDescription );
892 case FOURCC_0xa9gen: /* Genre */
893 SET( vlc_meta_SetGenre );
896 case FOURCC_0xa9alb: /* Album */
897 SET( vlc_meta_SetAlbum );
900 case FOURCC_0xa9trk: /* Track */
901 SET( vlc_meta_SetTrackNum );
904 case FOURCC_0xa9cmt: /* Commment */
905 SET( vlc_meta_SetDescription );
908 case FOURCC_0xa9url: /* URL */
909 SET( vlc_meta_SetURL );
912 case FOURCC_0xa9enc: /* Encoded By */
913 SET( vlc_meta_SetEncodedBy );
917 case FOURCC_0xa9inf: /* Information */
918 case FOURCC_0xa9dir: /* Director */
919 case FOURCC_0xa9dis: /* Disclaimer */
920 case FOURCC_0xa9req: /* Requirements */
921 case FOURCC_0xa9fmt: /* Original Format */
922 case FOURCC_0xa9dsa: /* Display Source As */
923 case FOURCC_0xa9hst: /* Host Computer */
924 case FOURCC_0xa9prd: /* Producer */
925 case FOURCC_0xa9prf: /* Performers */
926 case FOURCC_0xa9ope: /* Original Performer */
927 case FOURCC_0xa9src: /* Providers Source Content */
928 case FOURCC_0xa9wrt: /* Writer */
929 case FOURCC_0xa9com: /* Composer */
930 case FOURCC_WLOC: /* Window Location */
931 /* TODO one day, but they aren't really meaningfull */
942 case DEMUX_GET_TITLE_INFO:
944 input_title_t ***ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
945 int *pi_int = (int*)va_arg( args, int* );
946 int *pi_title_offset = (int*)va_arg( args, int* );
947 int *pi_seekpoint_offset = (int*)va_arg( args, int* );
949 if( !p_sys->p_title )
953 *ppp_title = malloc( sizeof( input_title_t**) );
954 (*ppp_title)[0] = vlc_input_title_Duplicate( p_sys->p_title );
955 *pi_title_offset = 0;
956 *pi_seekpoint_offset = 0;
959 case DEMUX_SET_TITLE:
961 const int i_title = (int)va_arg( args, int );
962 if( !p_sys->p_title || i_title != 0 )
966 case DEMUX_SET_SEEKPOINT:
968 const int i_seekpoint = (int)va_arg( args, int );
969 if( !p_sys->p_title )
971 return Seek( p_demux, p_sys->p_title->seekpoint[i_seekpoint]->i_time_offset );
974 case DEMUX_SET_NEXT_DEMUX_TIME:
975 case DEMUX_SET_GROUP:
976 case DEMUX_HAS_UNSUPPORTED_META:
977 case DEMUX_GET_ATTACHMENTS:
981 msg_Warn( p_demux, "control query %u unimplemented", i_query );
986 /*****************************************************************************
987 * Close: frees unused data
988 *****************************************************************************/
989 static void Close ( vlc_object_t * p_this )
991 demux_t * p_demux = (demux_t *)p_this;
992 demux_sys_t *p_sys = p_demux->p_sys;
993 unsigned int i_track;
995 msg_Dbg( p_demux, "freeing all memory" );
997 MP4_BoxFree( p_demux->s, p_sys->p_root );
998 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
1000 MP4_TrackDestroy( &p_sys->track[i_track] );
1002 FREENULL( p_sys->track );
1004 if( p_sys->p_title )
1005 vlc_input_title_Delete( p_sys->p_title );
1012 /****************************************************************************
1013 * Local functions, specific to vlc
1014 ****************************************************************************/
1016 static void LoadChapterGpac( demux_t *p_demux, MP4_Box_t *p_chpl )
1018 demux_sys_t *p_sys = p_demux->p_sys;
1021 p_sys->p_title = vlc_input_title_New();
1022 for( i = 0; i < p_chpl->data.p_chpl->i_chapter; i++ )
1024 seekpoint_t *s = vlc_seekpoint_New();
1026 s->psz_name = strdup( p_chpl->data.p_chpl->chapter[i].psz_name );
1027 EnsureUTF8( s->psz_name );
1028 s->i_time_offset = p_chpl->data.p_chpl->chapter[i].i_start / 10;
1029 TAB_APPEND( p_sys->p_title->i_seekpoint, p_sys->p_title->seekpoint, s );
1032 static void LoadChapterApple( demux_t *p_demux, mp4_track_t *tk )
1034 demux_sys_t *p_sys = p_demux->p_sys;
1036 for( tk->i_sample = 0; tk->i_sample < tk->i_sample_count; tk->i_sample++ )
1038 const int64_t i_dts = MP4_TrackGetDTS( p_demux, tk );
1039 const int64_t i_pts_delta = MP4_TrackGetPTSDelta( tk );
1040 const unsigned int i_size = MP4_TrackSampleSize( tk );
1042 if( i_size > 0 && !stream_Seek( p_demux->s, MP4_TrackGetPos( tk ) ) )
1045 const int i_read = stream_Read( p_demux->s, p_buffer, __MIN( sizeof(p_buffer), i_size ) );
1046 const int i_len = __MIN( GetWBE(p_buffer), i_read-2 );
1050 seekpoint_t *s = vlc_seekpoint_New();
1052 s->psz_name = strndup( &p_buffer[2], i_len );
1053 EnsureUTF8( s->psz_name );
1055 s->i_time_offset = i_dts + __MAX( i_pts_delta, 0 );
1057 if( !p_sys->p_title )
1058 p_sys->p_title = vlc_input_title_New();
1059 TAB_APPEND( p_sys->p_title->i_seekpoint, p_sys->p_title->seekpoint, s );
1062 if( tk->i_sample+1 >= tk->chunk[tk->i_chunk].i_sample_first +
1063 tk->chunk[tk->i_chunk].i_sample_count )
1067 static void LoadChapter( demux_t *p_demux )
1069 demux_sys_t *p_sys = p_demux->p_sys;
1072 if( ( p_chpl = MP4_BoxGet( p_sys->p_root, "/moov/udta/chpl" ) ) && p_chpl->data.p_chpl->i_chapter > 0 )
1074 LoadChapterGpac( p_demux, p_chpl );
1076 else if( p_sys->p_tref_chap )
1078 MP4_Box_data_tref_generic_t *p_chap = p_sys->p_tref_chap->data.p_tref_generic;
1081 /* Load the first subtitle track like quicktime */
1082 for( i = 0; i < p_chap->i_entry_count; i++ )
1084 for( j = 0; j < p_sys->i_tracks; j++ )
1086 mp4_track_t *tk = &p_sys->track[j];
1087 if( tk->b_ok && tk->i_track_ID == p_chap->i_track_ID[i] &&
1088 tk->fmt.i_cat == SPU_ES && tk->fmt.i_codec == VLC_FOURCC( 's', 'u', 'b', 't' ) )
1091 if( j < p_sys->i_tracks )
1093 LoadChapterApple( p_demux, &p_sys->track[j] );
1100 /* now create basic chunk data, the rest will be filled by MP4_CreateSamplesIndex */
1101 static int TrackCreateChunksIndex( demux_t *p_demux,
1102 mp4_track_t *p_demux_track )
1104 MP4_Box_t *p_co64; /* give offset for each chunk, same for stco and co64 */
1107 unsigned int i_chunk;
1108 unsigned int i_index, i_last;
1110 if( ( !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "stco" ) )&&
1111 !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "co64" ) ) )||
1112 ( !(p_stsc = MP4_BoxGet( p_demux_track->p_stbl, "stsc" ) ) ))
1114 return( VLC_EGENERIC );
1117 p_demux_track->i_chunk_count = p_co64->data.p_co64->i_entry_count;
1118 if( !p_demux_track->i_chunk_count )
1120 msg_Warn( p_demux, "no chunk defined" );
1121 return( VLC_EGENERIC );
1123 p_demux_track->chunk = calloc( p_demux_track->i_chunk_count,
1124 sizeof( mp4_chunk_t ) );
1125 if( p_demux_track->chunk == NULL )
1130 /* first we read chunk offset */
1131 for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1133 mp4_chunk_t *ck = &p_demux_track->chunk[i_chunk];
1135 ck->i_offset = p_co64->data.p_co64->i_chunk_offset[i_chunk];
1137 ck->i_first_dts = 0;
1138 ck->p_sample_count_dts = NULL;
1139 ck->p_sample_delta_dts = NULL;
1140 ck->p_sample_count_pts = NULL;
1141 ck->p_sample_offset_pts = NULL;
1144 /* now we read index for SampleEntry( soun vide mp4a mp4v ...)
1145 to be used for the sample XXX begin to 1
1146 We construct it begining at the end */
1147 i_last = p_demux_track->i_chunk_count; /* last chunk proceded */
1148 i_index = p_stsc->data.p_stsc->i_entry_count;
1151 msg_Warn( p_demux, "cannot read chunk table or table empty" );
1152 return( VLC_EGENERIC );
1157 for( i_chunk = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
1158 i_chunk < i_last; i_chunk++ )
1160 if( i_chunk >= p_demux_track->i_chunk_count )
1162 msg_Warn( p_demux, "corrupted chunk table" );
1163 return VLC_EGENERIC;
1166 p_demux_track->chunk[i_chunk].i_sample_description_index =
1167 p_stsc->data.p_stsc->i_sample_description_index[i_index];
1168 p_demux_track->chunk[i_chunk].i_sample_count =
1169 p_stsc->data.p_stsc->i_samples_per_chunk[i_index];
1171 i_last = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
1174 p_demux_track->chunk[0].i_sample_first = 0;
1175 for( i_chunk = 1; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1177 p_demux_track->chunk[i_chunk].i_sample_first =
1178 p_demux_track->chunk[i_chunk-1].i_sample_first +
1179 p_demux_track->chunk[i_chunk-1].i_sample_count;
1182 msg_Dbg( p_demux, "track[Id 0x%x] read %d chunk",
1183 p_demux_track->i_track_ID, p_demux_track->i_chunk_count );
1188 static int TrackCreateSamplesIndex( demux_t *p_demux,
1189 mp4_track_t *p_demux_track )
1192 MP4_Box_data_stsz_t *stsz;
1193 MP4_Box_data_stts_t *stts;
1194 /* TODO use also stss and stsh table for seeking */
1195 /* FIXME use edit table */
1200 int64_t i_index_sample_used;
1205 * Gives the sample size for each samples. There is also a stz2 table
1206 * (compressed form) that we need to implement TODO */
1207 p_box = MP4_BoxGet( p_demux_track->p_stbl, "stsz" );
1210 /* FIXME and stz2 */
1211 msg_Warn( p_demux, "cannot find STSZ box" );
1212 return VLC_EGENERIC;
1214 stsz = p_box->data.p_stsz;
1217 * Gives mapping between sample and decoding time
1219 p_box = MP4_BoxGet( p_demux_track->p_stbl, "stts" );
1222 msg_Warn( p_demux, "cannot find STTS box" );
1223 return VLC_EGENERIC;
1225 stts = p_box->data.p_stts;
1227 /* Use stsz table to create a sample number -> sample size table */
1228 p_demux_track->i_sample_count = stsz->i_sample_count;
1229 if( stsz->i_sample_size )
1231 /* 1: all sample have the same size, so no need to construct a table */
1232 p_demux_track->i_sample_size = stsz->i_sample_size;
1233 p_demux_track->p_sample_size = NULL;
1237 /* 2: each sample can have a different size */
1238 p_demux_track->i_sample_size = 0;
1239 p_demux_track->p_sample_size =
1240 calloc( p_demux_track->i_sample_count, sizeof( uint32_t ) );
1241 if( p_demux_track->p_sample_size == NULL )
1244 for( i_sample = 0; i_sample < p_demux_track->i_sample_count; i_sample++ )
1246 p_demux_track->p_sample_size[i_sample] =
1247 stsz->i_entry_size[i_sample];
1251 /* Use stts table to create a sample number -> dts table.
1252 * XXX: if we don't want to waste too much memory, we can't expand
1253 * the box! so each chunk will contain an "extract" of this table
1254 * for fast research (problem with raw stream where a sample is sometime
1255 * just channels*bits_per_sample/8 */
1258 i_index = 0; i_index_sample_used = 0;
1259 for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1261 mp4_chunk_t *ck = &p_demux_track->chunk[i_chunk];
1262 int64_t i_entry, i_sample_count, i;
1265 ck->i_first_dts = i_last_dts;
1267 /* count how many entries are needed for this chunk
1268 * for p_sample_delta_dts and p_sample_count_dts */
1269 i_sample_count = ck->i_sample_count;
1272 while( i_sample_count > 0 )
1274 i_sample_count -= stts->i_sample_count[i_index+i_entry];
1275 /* don't count already used sample in this entry */
1277 i_sample_count += i_index_sample_used;
1283 ck->p_sample_count_dts = calloc( i_entry, sizeof( uint32_t ) );
1284 ck->p_sample_delta_dts = calloc( i_entry, sizeof( uint32_t ) );
1286 if( !ck->p_sample_count_dts || !ck->p_sample_delta_dts )
1290 i_sample_count = ck->i_sample_count;
1291 for( i = 0; i < i_entry; i++ )
1296 i_rest = stts->i_sample_count[i_index] - i_index_sample_used;
1298 i_used = __MIN( i_rest, i_sample_count );
1300 i_index_sample_used += i_used;
1301 i_sample_count -= i_used;
1303 ck->p_sample_count_dts[i] = i_used;
1304 ck->p_sample_delta_dts[i] = stts->i_sample_delta[i_index];
1306 i_last_dts += i_used * ck->p_sample_delta_dts[i];
1308 if( i_index_sample_used >= stts->i_sample_count[i_index] )
1311 i_index_sample_used = 0;
1317 * Gives the delta between decoding time (dts) and composition table (pts)
1319 p_box = MP4_BoxGet( p_demux_track->p_stbl, "ctts" );
1322 MP4_Box_data_ctts_t *ctts = p_box->data.p_ctts;
1324 msg_Warn( p_demux, "CTTS table" );
1326 /* Create pts-dts table per chunk */
1327 i_index = 0; i_index_sample_used = 0;
1328 for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1330 mp4_chunk_t *ck = &p_demux_track->chunk[i_chunk];
1331 int64_t i_entry, i_sample_count, i;
1333 /* count how many entries are needed for this chunk
1334 * for p_sample_delta_dts and p_sample_count_dts */
1335 i_sample_count = ck->i_sample_count;
1338 while( i_sample_count > 0 )
1340 i_sample_count -= ctts->i_sample_count[i_index+i_entry];
1342 /* don't count already used sample in this entry */
1344 i_sample_count += i_index_sample_used;
1350 ck->p_sample_count_pts = calloc( i_entry, sizeof( uint32_t ) );
1351 ck->p_sample_offset_pts = calloc( i_entry, sizeof( int32_t ) );
1352 if( !ck->p_sample_count_pts || !ck->p_sample_offset_pts )
1356 i_sample_count = ck->i_sample_count;
1357 for( i = 0; i < i_entry; i++ )
1362 i_rest = ctts->i_sample_count[i_index] -
1363 i_index_sample_used;
1365 i_used = __MIN( i_rest, i_sample_count );
1367 i_index_sample_used += i_used;
1368 i_sample_count -= i_used;
1370 ck->p_sample_count_pts[i] = i_used;
1371 ck->p_sample_offset_pts[i] = ctts->i_sample_offset[i_index];
1373 if( i_index_sample_used >= ctts->i_sample_count[i_index] )
1376 i_index_sample_used = 0;
1382 msg_Dbg( p_demux, "track[Id 0x%x] read %d samples length:%"PRId64"s",
1383 p_demux_track->i_track_ID, p_demux_track->i_sample_count,
1384 i_last_dts / p_demux_track->i_timescale );
1391 * Create ES and PES to init decoder if needed, for a track starting at i_chunk
1393 static int TrackCreateES( demux_t *p_demux, mp4_track_t *p_track,
1394 unsigned int i_chunk, es_out_id_t **pp_es )
1396 MP4_Box_t *p_sample;
1404 if( !p_track->chunk[i_chunk].i_sample_description_index )
1406 msg_Warn( p_demux, "invalid SampleEntry index (track[Id 0x%x])",
1407 p_track->i_track_ID );
1408 return VLC_EGENERIC;
1411 p_sample = MP4_BoxGet( p_track->p_stsd, "[%d]",
1412 p_track->chunk[i_chunk].i_sample_description_index - 1 );
1415 ( !p_sample->data.p_data && p_track->fmt.i_cat != SPU_ES ) )
1417 msg_Warn( p_demux, "cannot find SampleEntry (track[Id 0x%x])",
1418 p_track->i_track_ID );
1419 return VLC_EGENERIC;
1422 p_track->p_sample = p_sample;
1424 if( ( p_frma = MP4_BoxGet( p_track->p_sample, "sinf/frma" ) ) )
1426 msg_Warn( p_demux, "Original Format Box: %4.4s", (char *)&p_frma->data.p_frma->i_type );
1428 p_sample->i_type = p_frma->data.p_frma->i_type;
1431 if( p_track->fmt.i_cat == AUDIO_ES && ( p_track->i_sample_size == 1 || p_track->i_sample_size == 2 ) )
1433 MP4_Box_data_sample_soun_t *p_soun;
1435 p_soun = p_sample->data.p_sample_soun;
1437 if( p_soun->i_qt_version == 0 )
1439 switch( p_sample->i_type )
1441 case VLC_FOURCC( 'i', 'm', 'a', '4' ):
1442 p_soun->i_qt_version = 1;
1443 p_soun->i_sample_per_packet = 64;
1444 p_soun->i_bytes_per_packet = 34;
1445 p_soun->i_bytes_per_frame = 34 * p_soun->i_channelcount;
1446 p_soun->i_bytes_per_sample = 2;
1448 case VLC_FOURCC( 'M', 'A', 'C', '3' ):
1449 p_soun->i_qt_version = 1;
1450 p_soun->i_sample_per_packet = 6;
1451 p_soun->i_bytes_per_packet = 2;
1452 p_soun->i_bytes_per_frame = 2 * p_soun->i_channelcount;
1453 p_soun->i_bytes_per_sample = 2;
1455 case VLC_FOURCC( 'M', 'A', 'C', '6' ):
1456 p_soun->i_qt_version = 1;
1457 p_soun->i_sample_per_packet = 12;
1458 p_soun->i_bytes_per_packet = 2;
1459 p_soun->i_bytes_per_frame = 2 * p_soun->i_channelcount;
1460 p_soun->i_bytes_per_sample = 2;
1462 case VLC_FOURCC( 'a', 'l', 'a', 'w' ):
1463 case VLC_FOURCC( 'u', 'l', 'a', 'w' ):
1464 p_soun->i_samplesize = 8;
1466 case VLC_FOURCC( 'N', 'O', 'N', 'E' ):
1467 case VLC_FOURCC( 'r', 'a', 'w', ' ' ):
1468 case VLC_FOURCC( 't', 'w', 'o', 's' ):
1469 case VLC_FOURCC( 's', 'o', 'w', 't' ):
1470 /* What would be the fun if you could trust the .mov */
1471 p_track->i_sample_size = ((p_soun->i_samplesize+7)/8) * p_soun->i_channelcount;
1478 else if( p_soun->i_qt_version == 1 && p_soun->i_sample_per_packet <= 0 )
1480 p_soun->i_qt_version = 0;
1485 switch( p_track->fmt.i_cat )
1488 p_track->fmt.video.i_width = p_sample->data.p_sample_vide->i_width;
1489 p_track->fmt.video.i_height = p_sample->data.p_sample_vide->i_height;
1490 p_track->fmt.video.i_bits_per_pixel =
1491 p_sample->data.p_sample_vide->i_depth;
1493 /* fall on display size */
1494 if( p_track->fmt.video.i_width <= 0 )
1495 p_track->fmt.video.i_width = p_track->i_width;
1496 if( p_track->fmt.video.i_height <= 0 )
1497 p_track->fmt.video.i_height = p_track->i_height;
1499 /* Find out apect ratio from display size */
1500 if( p_track->i_width > 0 && p_track->i_height > 0 &&
1501 /* Work-around buggy muxed files */
1502 p_sample->data.p_sample_vide->i_width != p_track->i_width )
1503 p_track->fmt.video.i_aspect =
1504 VOUT_ASPECT_FACTOR * p_track->i_width / p_track->i_height;
1506 /* Support for cropping (eg. in H263 files) */
1507 p_track->fmt.video.i_visible_width = p_track->fmt.video.i_width;
1508 p_track->fmt.video.i_visible_height = p_track->fmt.video.i_height;
1511 p_track->fmt.video.i_frame_rate = p_track->i_timescale;
1512 p_track->fmt.video.i_frame_rate_base = 1;
1514 if( p_track->fmt.video.i_frame_rate &&
1515 (p_box = MP4_BoxGet( p_track->p_stbl, "stts" )) &&
1516 p_box->data.p_stts->i_entry_count >= 1 )
1518 p_track->fmt.video.i_frame_rate_base =
1519 p_box->data.p_stts->i_sample_delta[0];
1525 p_track->fmt.audio.i_channels =
1526 p_sample->data.p_sample_soun->i_channelcount;
1527 p_track->fmt.audio.i_rate =
1528 p_sample->data.p_sample_soun->i_sampleratehi;
1529 p_track->fmt.i_bitrate = p_sample->data.p_sample_soun->i_channelcount *
1530 p_sample->data.p_sample_soun->i_sampleratehi *
1531 p_sample->data.p_sample_soun->i_samplesize;
1532 p_track->fmt.audio.i_bitspersample =
1533 p_sample->data.p_sample_soun->i_samplesize;
1535 if( p_track->i_sample_size != 0 &&
1536 p_sample->data.p_sample_soun->i_qt_version == 1 && p_sample->data.p_sample_soun->i_sample_per_packet <= 0 )
1538 msg_Err( p_demux, "Invalid sample per packet value for qt_version 1" );
1539 return VLC_EGENERIC;
1548 /* It's a little ugly but .. there are special cases */
1549 switch( p_sample->i_type )
1551 case( VLC_FOURCC( '.', 'm', 'p', '3' ) ):
1552 case( VLC_FOURCC( 'm', 's', 0x00, 0x55 ) ):
1554 MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
1555 p_track->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
1556 if( p_track->i_sample_size > 1 )
1557 p_soun->i_qt_version = 0;
1560 case( VLC_FOURCC( 'a', 'c', '-', '3' ) ):
1562 MP4_Box_t *p_dac3_box = MP4_BoxGet( p_sample, "dac3", 0 );
1564 p_track->fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
1567 static const int pi_bitrate[] = {
1574 MP4_Box_data_dac3_t *p_dac3 = p_dac3_box->data.p_dac3;
1575 p_track->fmt.audio.i_channels = 0;
1576 p_track->fmt.i_bitrate = 0;
1577 if( p_dac3->i_bitrate_code < sizeof(pi_bitrate)/sizeof(*pi_bitrate) )
1578 p_track->fmt.i_bitrate = pi_bitrate[p_dac3->i_bitrate_code] * 1000;
1579 p_track->fmt.audio.i_bitspersample = 0;
1583 case( VLC_FOURCC( 'e', 'c', '-', '3' ) ):
1585 p_track->fmt.i_codec = VLC_FOURCC( 'e', 'a', 'c', '3' );
1589 case( VLC_FOURCC( 'r', 'a', 'w', ' ' ) ):
1590 case( VLC_FOURCC( 'N', 'O', 'N', 'E' ) ):
1592 MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
1594 if(p_soun && (p_soun->i_samplesize+7)/8 == 1 )
1595 p_track->fmt.i_codec = VLC_FOURCC( 'u', '8', ' ', ' ' );
1597 p_track->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
1599 /* Buggy files workaround */
1600 if( p_sample->data.p_sample_soun && (p_track->i_timescale !=
1601 p_sample->data.p_sample_soun->i_sampleratehi) )
1603 MP4_Box_data_sample_soun_t *p_soun =
1604 p_sample->data.p_sample_soun;
1606 msg_Warn( p_demux, "i_timescale (%"PRIu64") != i_sampleratehi "
1607 "(%u), making both equal (report any problem).",
1608 p_track->i_timescale, p_soun->i_sampleratehi );
1610 if( p_soun->i_sampleratehi )
1611 p_track->i_timescale = p_soun->i_sampleratehi;
1613 p_soun->i_sampleratehi = p_track->i_timescale;
1618 case( VLC_FOURCC( 's', '2', '6', '3' ) ):
1619 p_track->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '3' );
1622 case( VLC_FOURCC( 't', 'e', 'x', 't' ) ):
1623 case( VLC_FOURCC( 't', 'x', '3', 'g' ) ):
1624 p_track->fmt.i_codec = VLC_FOURCC( 's', 'u', 'b', 't' );
1625 /* FIXME: Not true, could be UTF-16 with a Byte Order Mark (0xfeff) */
1626 /* FIXME UTF-8 doesn't work here ? */
1627 if( p_track->b_mac_encoding )
1628 p_track->fmt.subs.psz_encoding = strdup( "MAC" );
1630 p_track->fmt.subs.psz_encoding = strdup( "UTF-8" );
1633 case VLC_FOURCC('y','v','1','2'):
1634 p_track->fmt.i_codec = VLC_FOURCC('Y','V','1','2');
1636 case VLC_FOURCC('y','u','v','2'):
1637 p_track->fmt.i_codec = VLC_FOURCC('Y','U','Y','2');
1640 case VLC_FOURCC('i','n','2','4'):
1641 /* in in24/in32 there's enda-atom to tell it's little-endian (if present) */
1642 if( ( MP4_BoxGet( p_sample, "wave/enda" ) ) ||
1643 ( MP4_BoxGet( p_sample, "enda" ) ) )
1645 p_track->fmt.i_codec = VLC_FOURCC('4','2','n','i');
1647 p_track->fmt.i_codec = p_sample->i_type;
1652 p_track->fmt.i_codec = p_sample->i_type;
1656 /* now see if esds is present and if so create a data packet
1657 with decoder_specific_info */
1658 #define p_decconfig p_esds->data.p_esds->es_descriptor.p_decConfigDescr
1659 if( ( ( p_esds = MP4_BoxGet( p_sample, "esds" ) ) ||
1660 ( p_esds = MP4_BoxGet( p_sample, "wave/esds" ) ) )&&
1661 ( p_esds->data.p_esds )&&
1664 /* First update information based on i_objectTypeIndication */
1665 switch( p_decconfig->i_objectTypeIndication )
1667 case( 0x20 ): /* MPEG4 VIDEO */
1668 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','v' );
1671 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
1678 case( 0x65): /* MPEG2 video */
1679 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
1681 /* Theses are MPEG2-AAC */
1682 case( 0x66): /* main profile */
1683 case( 0x67): /* Low complexity profile */
1684 case( 0x68): /* Scaleable Sampling rate profile */
1685 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
1687 /* true MPEG 2 audio */
1689 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','a' );
1691 case( 0x6a): /* MPEG1 video */
1692 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
1694 case( 0x6b): /* MPEG1 audio */
1695 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','a' );
1697 case( 0x6c ): /* jpeg */
1698 p_track->fmt.i_codec = VLC_FOURCC( 'j','p','e','g' );
1700 case( 0x6d ): /* png */
1701 p_track->fmt.i_codec = VLC_FOURCC( 'p','n','g',' ' );
1703 case( 0x6e ): /* jpeg200 */
1704 p_track->fmt.i_codec = VLC_FOURCC( 'M','J','2','C' );
1706 case( 0xa3 ): /* vc1 */
1707 p_track->fmt.i_codec = VLC_FOURCC( 'W','V','C','1' );
1711 case( 0xe0 ): /* NeroDigital: dvd subs */
1712 if( p_track->fmt.i_cat == SPU_ES )
1714 p_track->fmt.i_codec = VLC_FOURCC( 's','p','u',' ' );
1715 if( p_track->i_width > 0 )
1716 p_track->fmt.subs.spu.i_original_frame_width = p_track->i_width;
1717 if( p_track->i_height > 0 )
1718 p_track->fmt.subs.spu.i_original_frame_height = p_track->i_height;
1721 case( 0xe1 ): /* QCelp for 3gp */
1722 if( p_track->fmt.i_cat == AUDIO_ES )
1724 p_track->fmt.i_codec = VLC_FOURCC( 'Q','c','l','p' );
1730 /* Unknown entry, but don't touch i_fourcc */
1732 "unknown objectTypeIndication(0x%x) (Track[ID 0x%x])",
1733 p_decconfig->i_objectTypeIndication,
1734 p_track->i_track_ID );
1737 p_track->fmt.i_extra = p_decconfig->i_decoder_specific_info_len;
1738 if( p_track->fmt.i_extra > 0 )
1740 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1741 memcpy( p_track->fmt.p_extra, p_decconfig->p_decoder_specific_info,
1742 p_track->fmt.i_extra );
1747 switch( p_sample->i_type )
1749 /* qt decoder, send the complete chunk */
1750 case VLC_FOURCC ('h', 'd', 'v', '1'): // HDV 720p30
1751 case VLC_FOURCC ('h', 'd', 'v', '2'): // HDV 1080i60
1752 case VLC_FOURCC ('h', 'd', 'v', '3'): // HDV 1080i50
1753 case VLC_FOURCC ('h', 'd', 'v', '5'): // HDV 720p25
1754 case VLC_FOURCC ('m', 'x', '5', 'n'): // MPEG2 IMX NTSC 525/60 50mb/s produced by FCP
1755 case VLC_FOURCC ('m', 'x', '5', 'p'): // MPEG2 IMX PAL 625/60 50mb/s produced by FCP
1756 case VLC_FOURCC ('m', 'x', '4', 'n'): // MPEG2 IMX NTSC 525/60 40mb/s produced by FCP
1757 case VLC_FOURCC ('m', 'x', '4', 'p'): // MPEG2 IMX PAL 625/60 40mb/s produced by FCP
1758 case VLC_FOURCC ('m', 'x', '3', 'n'): // MPEG2 IMX NTSC 525/60 30mb/s produced by FCP
1759 case VLC_FOURCC ('m', 'x', '3', 'p'): // MPEG2 IMX PAL 625/50 30mb/s produced by FCP
1760 case VLC_FOURCC ('x', 'd', 'v', '2'): // XDCAM HD 1080i60
1761 case VLC_FOURCC ('A', 'V', 'm', 'p'): // AVID IMX PAL
1762 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
1764 /* qt decoder, send the complete chunk */
1765 case VLC_FOURCC( 'S', 'V', 'Q', '3' ):
1766 case VLC_FOURCC( 'S', 'V', 'Q', '1' ):
1767 case VLC_FOURCC( 'V', 'P', '3', '1' ):
1768 case VLC_FOURCC( '3', 'I', 'V', '1' ):
1769 case VLC_FOURCC( 'Z', 'y', 'G', 'o' ):
1770 p_track->fmt.i_extra =
1771 p_sample->data.p_sample_vide->i_qt_image_description;
1772 if( p_track->fmt.i_extra > 0 )
1774 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1775 memcpy( p_track->fmt.p_extra,
1776 p_sample->data.p_sample_vide->p_qt_image_description,
1777 p_track->fmt.i_extra);
1780 case VLC_FOURCC( 'Q', 'D', 'M', 'C' ):
1781 case VLC_FOURCC( 'Q', 'D', 'M', '2' ):
1782 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1783 case VLC_FOURCC( 'a', 'l', 'a', 'c' ):
1784 p_track->fmt.i_extra =
1785 p_sample->data.p_sample_soun->i_qt_description;
1786 if( p_track->fmt.i_extra > 0 )
1788 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1789 memcpy( p_track->fmt.p_extra,
1790 p_sample->data.p_sample_soun->p_qt_description,
1791 p_track->fmt.i_extra);
1795 /* avc1: send avcC (h264 without annexe B, ie without start code)*/
1796 case VLC_FOURCC( 'a', 'v', 'c', '1' ):
1798 MP4_Box_t *p_avcC = MP4_BoxGet( p_sample, "avcC" );
1802 p_track->fmt.i_extra = p_avcC->data.p_avcC->i_avcC;
1803 if( p_track->fmt.i_extra > 0 )
1805 p_track->fmt.p_extra = malloc( p_avcC->data.p_avcC->i_avcC );
1806 memcpy( p_track->fmt.p_extra, p_avcC->data.p_avcC->p_avcC,
1807 p_track->fmt.i_extra );
1812 msg_Err( p_demux, "missing avcC" );
1817 case VLC_FOURCC('m','s',0x00,0x02):
1818 case VLC_FOURCC('m','s',0x00,0x11):
1819 case VLC_FOURCC('Q','c','l','p'):
1820 p_track->fmt.audio.i_blockalign = p_sample->data.p_sample_soun->i_bytes_per_frame;
1831 *pp_es = es_out_Add( p_demux->out, &p_track->fmt );
1836 /* given a time it return sample/chunk
1837 * it also update elst field of the track
1839 static int TrackTimeToSampleChunk( demux_t *p_demux, mp4_track_t *p_track,
1840 int64_t i_start, uint32_t *pi_chunk,
1841 uint32_t *pi_sample )
1843 demux_sys_t *p_sys = p_demux->p_sys;
1846 unsigned int i_sample;
1847 unsigned int i_chunk;
1850 /* FIXME see if it's needed to check p_track->i_chunk_count */
1851 if( p_track->i_chunk_count == 0 )
1852 return( VLC_EGENERIC );
1854 /* handle elst (find the correct one) */
1855 MP4_TrackSetELST( p_demux, p_track, i_start );
1856 if( p_track->p_elst && p_track->p_elst->data.p_elst->i_entry_count > 0 )
1858 MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;
1859 int64_t i_mvt= i_start * p_sys->i_timescale / (int64_t)1000000;
1861 /* now calculate i_start for this elst */
1863 i_start -= p_track->i_elst_time * INT64_C(1000000) / p_sys->i_timescale;
1871 /* to track time scale */
1872 i_start = i_start * p_track->i_timescale / (int64_t)1000000;
1873 /* add elst offset */
1874 if( ( elst->i_media_rate_integer[p_track->i_elst] > 0 ||
1875 elst->i_media_rate_fraction[p_track->i_elst] > 0 ) &&
1876 elst->i_media_time[p_track->i_elst] > 0 )
1878 i_start += elst->i_media_time[p_track->i_elst];
1881 msg_Dbg( p_demux, "elst (%d) gives %"PRId64"ms (movie)-> %"PRId64
1882 "ms (track)", p_track->i_elst,
1883 i_mvt * 1000 / p_sys->i_timescale,
1884 i_start * 1000 / p_track->i_timescale );
1888 /* convert absolute time to in timescale unit */
1889 i_start = i_start * p_track->i_timescale / (int64_t)1000000;
1892 /* we start from sample 0/chunk 0, hope it won't take too much time */
1893 /* *** find good chunk *** */
1894 for( i_chunk = 0; ; i_chunk++ )
1896 if( i_chunk + 1 >= p_track->i_chunk_count )
1898 /* at the end and can't check if i_start in this chunk,
1899 it will be check while searching i_sample */
1900 i_chunk = p_track->i_chunk_count - 1;
1904 if( (uint64_t)i_start >= p_track->chunk[i_chunk].i_first_dts &&
1905 (uint64_t)i_start < p_track->chunk[i_chunk + 1].i_first_dts )
1911 /* *** find sample in the chunk *** */
1912 i_sample = p_track->chunk[i_chunk].i_sample_first;
1913 i_dts = p_track->chunk[i_chunk].i_first_dts;
1914 for( i_index = 0; i_sample < p_track->chunk[i_chunk].i_sample_count; )
1917 p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
1918 p_track->chunk[i_chunk].p_sample_delta_dts[i_index] < (uint64_t)i_start )
1921 p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
1922 p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
1924 i_sample += p_track->chunk[i_chunk].p_sample_count_dts[i_index];
1929 if( p_track->chunk[i_chunk].p_sample_delta_dts[i_index] <= 0 )
1933 i_sample += ( i_start - i_dts ) /
1934 p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
1939 if( i_sample >= p_track->i_sample_count )
1941 msg_Warn( p_demux, "track[Id 0x%x] will be disabled "
1942 "(seeking too far) chunk=%d sample=%d",
1943 p_track->i_track_ID, i_chunk, i_sample );
1944 return( VLC_EGENERIC );
1948 /* *** Try to find nearest sync points *** */
1949 if( ( p_stss = MP4_BoxGet( p_track->p_stbl, "stss" ) ) )
1951 unsigned int i_index;
1953 "track[Id 0x%x] using Sync Sample Box (stss)",
1954 p_track->i_track_ID );
1955 for( i_index = 0; i_index < p_stss->data.p_stss->i_entry_count; i_index++ )
1957 if( p_stss->data.p_stss->i_sample_number[i_index] >= i_sample )
1961 msg_Dbg( p_demux, "stts gives %d --> %d (sample number)",
1963 p_stss->data.p_stss->i_sample_number[i_index-1] );
1964 i_sample = p_stss->data.p_stss->i_sample_number[i_index-1];
1965 /* new i_sample is less than old so i_chunk can only decreased */
1966 while( i_chunk > 0 &&
1967 i_sample < p_track->chunk[i_chunk].i_sample_first )
1974 msg_Dbg( p_demux, "stts gives %d --> %d (sample number)",
1976 p_stss->data.p_stss->i_sample_number[i_index] );
1977 i_sample = p_stss->data.p_stss->i_sample_number[i_index];
1978 /* new i_sample is more than old so i_chunk can only increased */
1979 while( i_chunk < p_track->i_chunk_count - 1 &&
1980 i_sample >= p_track->chunk[i_chunk].i_sample_first +
1981 p_track->chunk[i_chunk].i_sample_count )
1992 msg_Dbg( p_demux, "track[Id 0x%x] does not provide Sync "
1993 "Sample Box (stss)", p_track->i_track_ID );
1996 *pi_chunk = i_chunk;
1997 *pi_sample = i_sample;
2002 static int TrackGotoChunkSample( demux_t *p_demux, mp4_track_t *p_track,
2003 unsigned int i_chunk, unsigned int i_sample )
2005 bool b_reselect = false;
2007 /* now see if actual es is ok */
2008 if( p_track->i_chunk >= p_track->i_chunk_count ||
2009 p_track->chunk[p_track->i_chunk].i_sample_description_index !=
2010 p_track->chunk[i_chunk].i_sample_description_index )
2012 msg_Warn( p_demux, "recreate ES for track[Id 0x%x]",
2013 p_track->i_track_ID );
2015 es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE,
2016 p_track->p_es, &b_reselect );
2018 es_out_Del( p_demux->out, p_track->p_es );
2020 p_track->p_es = NULL;
2022 if( TrackCreateES( p_demux, p_track, i_chunk, &p_track->p_es ) )
2024 msg_Err( p_demux, "cannot create es for track[Id 0x%x]",
2025 p_track->i_track_ID );
2027 p_track->b_ok = false;
2028 p_track->b_selected = false;
2029 return VLC_EGENERIC;
2033 /* select again the new decoder */
2036 es_out_Control( p_demux->out, ES_OUT_SET_ES, p_track->p_es );
2039 p_track->i_chunk = i_chunk;
2040 p_track->i_sample = i_sample;
2042 return p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC;
2045 /****************************************************************************
2047 ****************************************************************************
2048 * Parse track information and create all needed data to run a track
2049 * If it succeed b_ok is set to 1 else to 0
2050 ****************************************************************************/
2051 static void MP4_TrackCreate( demux_t *p_demux, mp4_track_t *p_track,
2052 MP4_Box_t *p_box_trak,
2053 bool b_force_enable )
2055 demux_sys_t *p_sys = p_demux->p_sys;
2057 MP4_Box_t *p_tkhd = MP4_BoxGet( p_box_trak, "tkhd" );
2058 MP4_Box_t *p_tref = MP4_BoxGet( p_box_trak, "tref" );
2073 /* hint track unsupported */
2075 /* set default value (-> track unusable) */
2076 p_track->b_ok = false;
2077 p_track->b_enable = false;
2078 p_track->b_selected = false;
2079 p_track->b_chapter = false;
2080 p_track->b_mac_encoding = false;
2082 es_format_Init( &p_track->fmt, UNKNOWN_ES, 0 );
2089 /* do we launch this track by default ? */
2091 ( ( p_tkhd->data.p_tkhd->i_flags&MP4_TRACK_ENABLED ) != 0 );
2092 if( !p_track->b_enable )
2093 p_track->fmt.i_priority = -1;
2095 p_track->i_track_ID = p_tkhd->data.p_tkhd->i_track_ID;
2096 p_track->i_width = p_tkhd->data.p_tkhd->i_width / 65536;
2097 p_track->i_height = p_tkhd->data.p_tkhd->i_height / 65536;
2101 /* msg_Warn( p_demux, "unhandled box: tref --> FIXME" ); */
2104 p_mdhd = MP4_BoxGet( p_box_trak, "mdia/mdhd" );
2105 p_hdlr = MP4_BoxGet( p_box_trak, "mdia/hdlr" );
2107 if( ( !p_mdhd )||( !p_hdlr ) )
2112 p_track->i_timescale = p_mdhd->data.p_mdhd->i_timescale;
2113 if( !p_track->i_timescale )
2116 if( p_mdhd->data.p_mdhd->i_language_code < 0x800 )
2118 /* We can convert i_language_code into iso 639 code,
2120 strcpy( language, MP4_ConvertMacCode( p_mdhd->data.p_mdhd->i_language_code ) );
2121 p_track->b_mac_encoding = true;
2125 for( i = 0; i < 3; i++ )
2126 language[i] = p_mdhd->data.p_mdhd->i_language[i];
2130 switch( p_hdlr->data.p_hdlr->i_handler_type )
2132 case( FOURCC_soun ):
2133 if( !( p_smhd = MP4_BoxGet( p_box_trak, "mdia/minf/smhd" ) ) )
2137 p_track->fmt.i_cat = AUDIO_ES;
2140 case( FOURCC_vide ):
2141 if( !( p_vmhd = MP4_BoxGet( p_box_trak, "mdia/minf/vmhd" ) ) )
2145 p_track->fmt.i_cat = VIDEO_ES;
2148 case( FOURCC_text ):
2149 case( FOURCC_subp ):
2150 case( FOURCC_tx3g ):
2151 case( FOURCC_sbtl ):
2152 p_track->fmt.i_cat = SPU_ES;
2159 p_track->i_elst = 0;
2160 p_track->i_elst_time = 0;
2161 if( ( p_track->p_elst = p_elst = MP4_BoxGet( p_box_trak, "edts/elst" ) ) )
2163 MP4_Box_data_elst_t *elst = p_elst->data.p_elst;
2166 msg_Warn( p_demux, "elst box found" );
2167 for( i = 0; i < elst->i_entry_count; i++ )
2169 msg_Dbg( p_demux, " - [%d] duration=%"PRId64"ms media time=%"PRId64
2170 "ms) rate=%d.%d", i,
2171 elst->i_segment_duration[i] * 1000 / p_sys->i_timescale,
2172 elst->i_media_time[i] >= 0 ?
2173 (int64_t)(elst->i_media_time[i] * 1000 / p_track->i_timescale) :
2175 elst->i_media_rate_integer[i],
2176 elst->i_media_rate_fraction[i] );
2183 p_dinf = MP4_BoxGet( p_minf, "dinf" );
2185 if( !( p_track->p_stbl = MP4_BoxGet( p_box_trak,"mdia/minf/stbl" ) ) ||
2186 !( p_track->p_stsd = MP4_BoxGet( p_box_trak,"mdia/minf/stbl/stsd") ) )
2191 p_drms = MP4_BoxGet( p_track->p_stsd, "drms" );
2192 p_track->b_drms = p_drms != NULL;
2193 p_track->p_drms = p_track->b_drms ?
2194 p_drms->data.p_sample_soun->p_drms : NULL;
2198 p_drms = MP4_BoxGet( p_track->p_stsd, "drmi" );
2199 p_track->b_drms = p_drms != NULL;
2200 p_track->p_drms = p_track->b_drms ?
2201 p_drms->data.p_sample_vide->p_drms : NULL;
2205 p_track->p_skcr = MP4_BoxGet( p_drms, "sinf/skcr" );
2208 if( *language && strcmp( language, "```" ) && strcmp( language, "und" ) )
2210 p_track->fmt.psz_language = strdup( language );
2213 p_udta = MP4_BoxGet( p_box_trak, "udta" );
2216 MP4_Box_t *p_0xa9xxx;
2217 for( p_0xa9xxx = p_udta->p_first; p_0xa9xxx != NULL;
2218 p_0xa9xxx = p_0xa9xxx->p_next )
2220 switch( p_0xa9xxx->i_type )
2222 case FOURCC_0xa9nam:
2223 p_track->fmt.psz_description =
2224 strdup( p_0xa9xxx->data.p_0xa9xxx->psz_text );
2230 /* Create chunk index table and sample index table */
2231 if( TrackCreateChunksIndex( p_demux,p_track ) ||
2232 TrackCreateSamplesIndex( p_demux, p_track ) )
2234 return; /* cannot create chunks index */
2237 p_track->i_chunk = 0;
2238 p_track->i_sample = 0;
2240 /* Mark chapter only track */
2241 if( p_sys->p_tref_chap )
2243 MP4_Box_data_tref_generic_t *p_chap = p_sys->p_tref_chap->data.p_tref_generic;
2246 for( i = 0; i < p_chap->i_entry_count; i++ )
2248 if( p_track->i_track_ID == p_chap->i_track_ID[i] )
2250 p_track->b_chapter = true;
2251 p_track->b_enable = false;
2258 if( b_force_enable &&
2259 ( p_track->fmt.i_cat == VIDEO_ES || p_track->fmt.i_cat == AUDIO_ES ) )
2261 msg_Warn( p_demux, "Enabling track[Id 0x%x] (buggy file without enabled track)",
2262 p_track->i_track_ID );
2263 p_track->b_enable = true;
2264 p_track->fmt.i_priority = 0;
2267 p_track->p_es = NULL;
2268 if( TrackCreateES( p_demux,
2269 p_track, p_track->i_chunk,
2270 p_track->b_chapter ? NULL : &p_track->p_es ) )
2272 msg_Err( p_demux, "cannot create es for track[Id 0x%x]",
2273 p_track->i_track_ID );
2276 p_track->b_ok = true;
2280 for( i = 0; i < p_track->i_chunk_count; i++ )
2282 fprintf( stderr, "%-5d sample_count=%d pts=%lld\n",
2283 i, p_track->chunk[i].i_sample_count,
2284 p_track->chunk[i].i_first_dts );
2291 /****************************************************************************
2293 ****************************************************************************
2294 * Destroy a track created by MP4_TrackCreate.
2295 ****************************************************************************/
2296 static void MP4_TrackDestroy( mp4_track_t *p_track )
2298 unsigned int i_chunk;
2300 p_track->b_ok = false;
2301 p_track->b_enable = false;
2302 p_track->b_selected = false;
2304 es_format_Clean( &p_track->fmt );
2306 for( i_chunk = 0; i_chunk < p_track->i_chunk_count; i_chunk++ )
2308 if( p_track->chunk )
2310 FREENULL(p_track->chunk[i_chunk].p_sample_count_dts);
2311 FREENULL(p_track->chunk[i_chunk].p_sample_delta_dts );
2313 FREENULL(p_track->chunk[i_chunk].p_sample_count_pts);
2314 FREENULL(p_track->chunk[i_chunk].p_sample_offset_pts );
2317 FREENULL( p_track->chunk );
2319 if( !p_track->i_sample_size )
2321 FREENULL( p_track->p_sample_size );
2325 static int MP4_TrackSelect( demux_t *p_demux, mp4_track_t *p_track,
2328 if( !p_track->b_ok || p_track->b_chapter )
2330 return VLC_EGENERIC;
2333 if( p_track->b_selected )
2335 msg_Warn( p_demux, "track[Id 0x%x] already selected",
2336 p_track->i_track_ID );
2340 return MP4_TrackSeek( p_demux, p_track, i_start );
2343 static void MP4_TrackUnselect( demux_t *p_demux, mp4_track_t *p_track )
2345 if( !p_track->b_ok || p_track->b_chapter )
2350 if( !p_track->b_selected )
2352 msg_Warn( p_demux, "track[Id 0x%x] already unselected",
2353 p_track->i_track_ID );
2358 es_out_Control( p_demux->out, ES_OUT_SET_ES_STATE,
2359 p_track->p_es, false );
2362 p_track->b_selected = false;
2365 static int MP4_TrackSeek( demux_t *p_demux, mp4_track_t *p_track,
2371 if( !p_track->b_ok || p_track->b_chapter )
2372 return VLC_EGENERIC;
2374 p_track->b_selected = false;
2376 if( TrackTimeToSampleChunk( p_demux, p_track, i_start,
2377 &i_chunk, &i_sample ) )
2379 msg_Warn( p_demux, "cannot select track[Id 0x%x]",
2380 p_track->i_track_ID );
2381 return VLC_EGENERIC;
2384 p_track->b_selected = true;
2386 if( !TrackGotoChunkSample( p_demux, p_track, i_chunk, i_sample ) )
2387 p_track->b_selected = true;
2389 return p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC;
2394 * 3 types: for audio
2397 #define QT_V0_MAX_SAMPLES 1024
2398 static int MP4_TrackSampleSize( mp4_track_t *p_track )
2401 MP4_Box_data_sample_soun_t *p_soun;
2403 if( p_track->i_sample_size == 0 )
2405 /* most simple case */
2406 return p_track->p_sample_size[p_track->i_sample];
2408 if( p_track->fmt.i_cat != AUDIO_ES )
2410 return p_track->i_sample_size;
2413 p_soun = p_track->p_sample->data.p_sample_soun;
2415 if( p_soun->i_qt_version == 1 )
2417 int i_samples = p_track->chunk[p_track->i_chunk].i_sample_count;
2418 if( p_track->fmt.audio.i_blockalign > 1 )
2419 i_samples = p_soun->i_sample_per_packet;
2421 i_size = i_samples / p_soun->i_sample_per_packet * p_soun->i_bytes_per_frame;
2423 else if( p_track->i_sample_size > 256 )
2425 /* We do that so we don't read too much data
2426 * (in this case we are likely dealing with compressed data) */
2427 i_size = p_track->i_sample_size;
2431 /* Read a bunch of samples at once */
2432 int i_samples = p_track->chunk[p_track->i_chunk].i_sample_count -
2433 ( p_track->i_sample -
2434 p_track->chunk[p_track->i_chunk].i_sample_first );
2436 i_samples = __MIN( QT_V0_MAX_SAMPLES, i_samples );
2437 i_size = i_samples * p_track->i_sample_size;
2440 //fprintf( stderr, "size=%d\n", i_size );
2444 static uint64_t MP4_TrackGetPos( mp4_track_t *p_track )
2446 unsigned int i_sample;
2449 i_pos = p_track->chunk[p_track->i_chunk].i_offset;
2451 if( p_track->i_sample_size )
2453 MP4_Box_data_sample_soun_t *p_soun =
2454 p_track->p_sample->data.p_sample_soun;
2456 if( p_soun->i_qt_version == 0 )
2458 i_pos += ( p_track->i_sample -
2459 p_track->chunk[p_track->i_chunk].i_sample_first ) *
2460 p_track->i_sample_size;
2464 /* we read chunk by chunk unless a blockalign is requested */
2465 if( p_track->fmt.audio.i_blockalign > 1 )
2466 i_pos += ( p_track->i_sample - p_track->chunk[p_track->i_chunk].i_sample_first ) /
2467 p_soun->i_sample_per_packet * p_soun->i_bytes_per_frame;
2472 for( i_sample = p_track->chunk[p_track->i_chunk].i_sample_first;
2473 i_sample < p_track->i_sample; i_sample++ )
2475 i_pos += p_track->p_sample_size[i_sample];
2482 static int MP4_TrackNextSample( demux_t *p_demux, mp4_track_t *p_track )
2484 if( p_track->fmt.i_cat == AUDIO_ES && p_track->i_sample_size != 0 )
2486 MP4_Box_data_sample_soun_t *p_soun;
2488 p_soun = p_track->p_sample->data.p_sample_soun;
2490 if( p_soun->i_qt_version == 1 )
2492 /* we read chunk by chunk unless a blockalign is requested */
2493 if( p_track->fmt.audio.i_blockalign > 1 )
2494 p_track->i_sample += p_soun->i_sample_per_packet;
2496 p_track->i_sample += p_track->chunk[p_track->i_chunk].i_sample_count;
2498 else if( p_track->i_sample_size > 256 )
2500 /* We do that so we don't read too much data
2501 * (in this case we are likely dealing with compressed data) */
2502 p_track->i_sample += 1;
2507 p_track->i_sample += QT_V0_MAX_SAMPLES;
2508 if( p_track->i_sample >
2509 p_track->chunk[p_track->i_chunk].i_sample_first +
2510 p_track->chunk[p_track->i_chunk].i_sample_count )
2513 p_track->chunk[p_track->i_chunk].i_sample_first +
2514 p_track->chunk[p_track->i_chunk].i_sample_count;
2520 p_track->i_sample++;
2523 if( p_track->i_sample >= p_track->i_sample_count )
2524 return VLC_EGENERIC;
2526 /* Have we changed chunk ? */
2527 if( p_track->i_sample >=
2528 p_track->chunk[p_track->i_chunk].i_sample_first +
2529 p_track->chunk[p_track->i_chunk].i_sample_count )
2531 if( TrackGotoChunkSample( p_demux, p_track, p_track->i_chunk + 1,
2532 p_track->i_sample ) )
2534 msg_Warn( p_demux, "track[0x%x] will be disabled "
2535 "(cannot restart decoder)", p_track->i_track_ID );
2536 MP4_TrackUnselect( p_demux, p_track );
2537 return VLC_EGENERIC;
2541 /* Have we changed elst */
2542 if( p_track->p_elst && p_track->p_elst->data.p_elst->i_entry_count > 0 )
2544 demux_sys_t *p_sys = p_demux->p_sys;
2545 MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;
2546 uint64_t i_mvt = MP4_TrackGetDTS( p_demux, p_track ) *
2547 p_sys->i_timescale / (int64_t)1000000;
2549 if( (unsigned int)p_track->i_elst < elst->i_entry_count &&
2550 i_mvt >= p_track->i_elst_time +
2551 elst->i_segment_duration[p_track->i_elst] )
2553 MP4_TrackSetELST( p_demux, p_track,
2554 MP4_TrackGetDTS( p_demux, p_track ) );
2561 static void MP4_TrackSetELST( demux_t *p_demux, mp4_track_t *tk,
2564 demux_sys_t *p_sys = p_demux->p_sys;
2565 int i_elst_last = tk->i_elst;
2567 /* handle elst (find the correct one) */
2569 tk->i_elst_time = 0;
2570 if( tk->p_elst && tk->p_elst->data.p_elst->i_entry_count > 0 )
2572 MP4_Box_data_elst_t *elst = tk->p_elst->data.p_elst;
2573 int64_t i_mvt= i_time * p_sys->i_timescale / (int64_t)1000000;
2575 for( tk->i_elst = 0; (unsigned int)tk->i_elst < elst->i_entry_count; tk->i_elst++ )
2577 mtime_t i_dur = elst->i_segment_duration[tk->i_elst];
2579 if( tk->i_elst_time <= i_mvt && i_mvt < tk->i_elst_time + i_dur )
2583 tk->i_elst_time += i_dur;
2586 if( (unsigned int)tk->i_elst >= elst->i_entry_count )
2588 /* msg_Dbg( p_demux, "invalid number of entry in elst" ); */
2589 tk->i_elst = elst->i_entry_count - 1;
2590 tk->i_elst_time -= elst->i_segment_duration[tk->i_elst];
2593 if( elst->i_media_time[tk->i_elst] < 0 )
2596 tk->i_elst_time += elst->i_segment_duration[tk->i_elst];
2599 if( i_elst_last != tk->i_elst )
2601 msg_Warn( p_demux, "elst old=%d new=%d", i_elst_last, tk->i_elst );
2606 static const char *MP4_ConvertMacCode( uint16_t i_code )
2608 static const struct { const char *psz_iso639_1; uint16_t i_code; } p_cvt[] = {
2609 { "en", 0 }, { "fr", 1 }, { "de", 2 }, { "it", 3 }, { "nl", 4 },
2610 { "sv", 5 }, { "es", 6 }, { "da", 7 }, { "pt", 8 }, { "no", 9 },
2611 { "he", 10 }, { "ja", 11 }, { "ar", 12 }, { "fi", 13 }, { "el", 14 },
2612 { "is", 15 }, { "mt", 16 }, { "tr", 17 }, { "hr", 18 }, { "zh", 19 },
2613 { "ur", 20 }, { "hi", 21 }, { "th", 22 }, { "ko", 23 }, { "lt", 24 },
2614 { "pl", 25 }, { "hu", 26 }, { "et", 27 }, { "lv", 28 }, //{ "??", 29 },
2615 { "fo", 30 }, { "fa", 31 }, { "ru", 32 }, { "zh", 33 }, { "nl", 34 },
2616 { "ga", 35 }, { "sq", 36 }, { "ro", 37 }, { "cs", 38 }, { "sk", 39 },
2617 { "sl", 40 }, { "yi", 41 }, { "sr", 42 }, { "mk", 43 }, { "bg", 44 },
2618 { "uk", 45 }, { "be", 46 }, { "uz", 47 }, { "az", 48 }, { "kk", 48 },
2619 { "az", 50 }, { "hy", 51 }, { "ka", 52 }, { "mo", 53 }, { "ky", 54 },
2620 { "tg", 55 }, { "tk", 56 }, { "mn", 57 }, { "mn", 58 }, { "ps", 59 },
2621 { "ku", 60 }, { "ks", 61 }, { "sd", 62 }, { "bo", 63 }, { "ne", 64 },
2622 { "sa", 65 }, { "mr", 66 }, { "bn", 67 }, { "as", 68 }, { "gu", 69 },
2623 { "pa", 70 }, { "or", 71 }, { "ml", 72 }, { "kn", 73 }, { "ta", 74 },
2624 { "te", 75 }, { "si", 76 }, { "my", 77 }, { "km", 78 }, { "lo", 79 },
2625 { "vi", 80 }, { "id", 81 }, { "tl", 82 }, { "ms", 83 }, { "ms", 84 },
2626 { "am", 85 }, { "ti", 86 }, { "om", 87 }, { "so", 88 }, { "sw", 89 },
2627 { "rw", 90 }, { "rn", 91 }, { "ny", 92 }, { "mg", 93 }, { "eo", 94 },
2629 { "cy", 128 }, { "eu", 129 },
2630 { "ca", 130 }, { "la", 131 }, { "qu", 132 }, { "gn", 133 }, { "ay", 134 },
2631 { "tt", 135 }, { "ug", 136 }, { "dz", 137 }, { "jv", 138 }, { "su", 139 },
2632 { "gl", 140 }, { "af", 141 }, { "br", 142 }, { "iu", 143 }, { "gd", 144 },
2633 { "gv", 145 }, { "ga", 146 }, { "to", 147 }, { "el", 148 },
2638 for( i = 0; p_cvt[i].psz_iso639_1 != NULL; i++ )
2640 if( p_cvt[i].i_code == i_code )
2641 return p_cvt[i].psz_iso639_1;