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>
46 #define uint64_t int64_t
49 /*****************************************************************************
51 *****************************************************************************/
52 static int Open ( vlc_object_t * );
53 static void Close( vlc_object_t * );
56 set_category( CAT_INPUT );
57 set_subcategory( SUBCAT_INPUT_DEMUX );
58 set_description( N_("MP4 stream demuxer") );
59 set_capability( "demux", 242 );
60 set_callbacks( Open, Close );
63 /*****************************************************************************
65 *****************************************************************************/
66 static int Demux ( demux_t * );
67 static int DemuxRef( demux_t *p_demux ){ (void)p_demux; return 0;}
68 static int Seek ( demux_t *, mtime_t );
69 static int Control ( demux_t *, int, va_list );
71 /* Contain all information about a chunk */
74 uint64_t i_offset; /* absolute position of this chunk in the file */
75 uint32_t i_sample_description_index; /* index for SampleEntry to use */
76 uint32_t i_sample_count; /* how many samples in this chunk */
77 uint32_t i_sample_first; /* index of the first sample in this chunk */
79 /* now provide way to calculate pts, dts, and offset without to
80 much memory and with fast acces */
82 /* with this we can calculate dts/pts without waste memory */
84 uint32_t *p_sample_count_dts;
85 uint32_t *p_sample_delta_dts; /* dts delta */
87 uint32_t *p_sample_count_pts;
88 int32_t *p_sample_offset_pts; /* pts-dts */
90 /* TODO if needed add pts
91 but quickly *add* support for edts and seeking */
95 /* Contain all needed information for read all track with vlc */
98 unsigned int i_track_ID;/* this should be unique */
100 int b_ok; /* The track is usable */
101 int b_enable; /* is the trak enable by default */
102 bool b_selected; /* is the trak being played */
103 bool b_chapter; /* True when used for chapter only */
110 /* display size only ! */
114 /* more internal data */
115 uint64_t i_timescale; /* time scale for this track only */
118 int i_elst; /* current elst */
119 int64_t i_elst_time; /* current elst start time (in movie time scale)*/
120 MP4_Box_t *p_elst; /* elst (could be NULL) */
122 /* give the next sample to read, i_chunk is to find quickly where
123 the sample is located */
124 uint32_t i_sample; /* next sample to read */
125 uint32_t i_chunk; /* chunk where next sample is stored */
126 /* total count of chunk and sample */
127 uint32_t i_chunk_count;
128 uint32_t i_sample_count;
130 mp4_chunk_t *chunk; /* always defined for each chunk */
132 /* sample size, p_sample_size defined only if i_sample_size == 0
133 else i_sample_size is size for all sample */
134 uint32_t i_sample_size;
135 uint32_t *p_sample_size; /* XXX perhaps add file offset if take
136 too much time to do sumations each time*/
138 MP4_Box_t *p_stbl; /* will contain all timing information */
139 MP4_Box_t *p_stsd; /* will contain all data to initialize decoder */
140 MP4_Box_t *p_sample;/* point on actual sdsd */
150 MP4_Box_t *p_root; /* container for the whole file */
154 uint64_t i_time; /* time position of the presentation
155 * in movie timescale */
156 uint64_t i_timescale; /* movie time scale */
157 uint64_t i_duration; /* movie duration */
158 unsigned int i_tracks; /* number of tracks */
159 mp4_track_t *track; /* array of track */
162 MP4_Box_t *p_tref_chap;
165 input_title_t *p_title;
168 /*****************************************************************************
169 * Declaration of local function
170 *****************************************************************************/
171 static void MP4_TrackCreate ( demux_t *, mp4_track_t *, MP4_Box_t *, bool b_force_enable );
172 static void MP4_TrackDestroy( mp4_track_t * );
174 static int MP4_TrackSelect ( demux_t *, mp4_track_t *, mtime_t );
175 static void MP4_TrackUnselect(demux_t *, mp4_track_t * );
177 static int MP4_TrackSeek ( demux_t *, mp4_track_t *, mtime_t );
179 static uint64_t MP4_TrackGetPos ( mp4_track_t * );
180 static int MP4_TrackSampleSize( mp4_track_t * );
181 static int MP4_TrackNextSample( demux_t *, mp4_track_t * );
182 static void MP4_TrackSetELST( demux_t *, mp4_track_t *, int64_t );
184 static void MP4_UpdateSeekpoint( demux_t * );
185 static const char *MP4_ConvertMacCode( uint16_t );
187 /* Return time in s of a track */
188 static inline int64_t MP4_TrackGetDTS( demux_t *p_demux, mp4_track_t *p_track )
190 #define chunk p_track->chunk[p_track->i_chunk]
192 unsigned int i_index = 0;
193 unsigned int i_sample = p_track->i_sample - chunk.i_sample_first;
194 int64_t i_dts = chunk.i_first_dts;
196 while( i_sample > 0 )
198 if( i_sample > chunk.p_sample_count_dts[i_index] )
200 i_dts += chunk.p_sample_count_dts[i_index] *
201 chunk.p_sample_delta_dts[i_index];
202 i_sample -= chunk.p_sample_count_dts[i_index];
207 i_dts += i_sample * chunk.p_sample_delta_dts[i_index];
215 /* now handle elst */
216 if( p_track->p_elst )
218 demux_sys_t *p_sys = p_demux->p_sys;
219 MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;
221 /* convert to offset */
222 if( ( elst->i_media_rate_integer[p_track->i_elst] > 0 ||
223 elst->i_media_rate_fraction[p_track->i_elst] > 0 ) &&
224 elst->i_media_time[p_track->i_elst] > 0 )
226 i_dts -= elst->i_media_time[p_track->i_elst];
229 /* add i_elst_time */
230 i_dts += p_track->i_elst_time * p_track->i_timescale /
233 if( i_dts < 0 ) i_dts = 0;
236 return INT64_C(1000000) * i_dts / p_track->i_timescale;
239 static inline int64_t MP4_TrackGetPTSDelta( mp4_track_t *p_track )
241 mp4_chunk_t *ck = &p_track->chunk[p_track->i_chunk];
242 unsigned int i_index = 0;
243 unsigned int i_sample = p_track->i_sample - ck->i_sample_first;
245 if( ck->p_sample_count_pts == NULL || ck->p_sample_offset_pts == NULL )
248 for( i_index = 0;; i_index++ )
250 if( i_sample < ck->p_sample_count_pts[i_index] )
251 return ck->p_sample_offset_pts[i_index] * INT64_C(1000000) /
252 (int64_t)p_track->i_timescale;
254 i_sample -= ck->p_sample_count_pts[i_index];
258 static inline int64_t MP4_GetMoviePTS(demux_sys_t *p_sys )
260 return INT64_C(1000000) * p_sys->i_time / p_sys->i_timescale;
263 static void LoadChapter( demux_t *p_demux );
265 /*****************************************************************************
266 * Open: check file and initializes MP4 structures
267 *****************************************************************************/
268 static int Open( vlc_object_t * p_this )
270 demux_t *p_demux = (demux_t *)p_this;
273 const uint8_t *p_peek;
284 /* A little test to see if it could be a mp4 */
285 if( stream_Peek( p_demux->s, &p_peek, 8 ) < 8 ) return VLC_EGENERIC;
287 switch( VLC_FOURCC( p_peek[4], p_peek[5], p_peek[6], p_peek[7] ) )
298 case VLC_FOURCC( 'p', 'n', 'o', 't' ):
305 stream_Control( p_demux->s, STREAM_CAN_SEEK, &b_seekable );
308 msg_Warn( p_demux, "MP4 plugin discarded (unseekable)" );
312 /*Set exported functions */
313 p_demux->pf_demux = Demux;
314 p_demux->pf_control = Control;
316 /* create our structure that will contains all data */
317 p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
318 memset( p_sys, 0, sizeof( demux_sys_t ) );
320 /* Now load all boxes ( except raw data ) */
321 if( ( p_sys->p_root = MP4_BoxGetRoot( p_demux->s ) ) == NULL )
323 msg_Warn( p_demux, "MP4 plugin discarded (not a valid file)" );
327 MP4_BoxDumpStructure( p_demux->s, p_sys->p_root );
329 if( ( p_ftyp = MP4_BoxGet( p_sys->p_root, "/ftyp" ) ) )
331 switch( p_ftyp->data.p_ftyp->i_major_brand )
335 "ISO Media file (isom) version %d.",
336 p_ftyp->data.p_ftyp->i_minor_version );
340 "unrecognized major file specification (%4.4s).",
341 (char*)&p_ftyp->data.p_ftyp->i_major_brand );
347 msg_Dbg( p_demux, "file type box missing (assuming ISO Media file)" );
350 /* the file need to have one moov box */
351 if( MP4_BoxCount( p_sys->p_root, "/moov" ) <= 0 )
353 MP4_Box_t *p_foov = MP4_BoxGet( p_sys->p_root, "/foov" );
357 msg_Err( p_demux, "MP4 plugin discarded (no moov box)" );
360 /* we have a free box as a moov, rename it */
361 p_foov->i_type = FOURCC_moov;
364 if( ( p_rmra = MP4_BoxGet( p_sys->p_root, "/moov/rmra" ) ) )
366 int i_count = MP4_BoxCount( p_rmra, "rmda" );
369 msg_Dbg( p_demux, "detected playlist mov file (%d ref)", i_count );
371 input_thread_t * p_input = vlc_object_find( p_demux, VLC_OBJECT_INPUT, FIND_PARENT );
372 input_item_t * p_current = input_GetItem( p_input );
373 p_current->i_type = ITEM_TYPE_PLAYLIST;
375 for( i = 0; i < i_count; i++ )
377 MP4_Box_t *p_rdrf = MP4_BoxGet( p_rmra, "rmda[%d]/rdrf", i );
381 if( !p_rdrf || !( psz_ref = strdup( p_rdrf->data.p_rdrf->psz_ref ) ) )
385 i_ref_type = p_rdrf->data.p_rdrf->i_ref_type;
387 msg_Dbg( p_demux, "new ref=`%s' type=%4.4s",
388 psz_ref, (char*)&i_ref_type );
390 if( i_ref_type == VLC_FOURCC( 'u', 'r', 'l', ' ' ) )
392 if( strstr( psz_ref, "qt5gateQT" ) )
394 msg_Dbg( p_demux, "ignoring pseudo ref =`%s'", psz_ref );
397 if( !strncmp( psz_ref, "http://", 7 ) ||
398 !strncmp( psz_ref, "rtsp://", 7 ) )
405 char *psz_path = strdup( p_demux->psz_path );
406 char *end = strrchr( psz_path, '/' );
407 if( end ) end[1] = '\0';
408 else *psz_path = '\0';
410 if( asprintf( &psz_absolute, "%s://%s%s",
411 p_demux->psz_access, psz_path, psz_ref ) < 0 )
415 psz_ref = psz_absolute;
418 input_item_t *p_input;
419 msg_Dbg( p_demux, "adding ref = `%s'", psz_ref );
420 p_input = input_ItemNewExt( p_demux, psz_ref, NULL,
422 input_ItemCopyOptions( p_current, p_input );
423 input_ItemAddSubItem( p_current, p_input );
424 vlc_gc_decref( p_input );
428 msg_Err( p_demux, "unknown ref type=%4.4s FIXME (send a bug report)",
429 (char*)&p_rdrf->data.p_rdrf->i_ref_type );
433 vlc_object_release( p_input );
436 if( !(p_mvhd = MP4_BoxGet( p_sys->p_root, "/moov/mvhd" ) ) )
440 msg_Err( p_demux, "cannot find /moov/mvhd" );
445 msg_Warn( p_demux, "cannot find /moov/mvhd (pure ref file)" );
446 p_demux->pf_demux = DemuxRef;
452 p_sys->i_timescale = p_mvhd->data.p_mvhd->i_timescale;
453 if( p_sys->i_timescale == 0 )
455 msg_Err( p_this, "bad timescale" );
458 p_sys->i_duration = p_mvhd->data.p_mvhd->i_duration;
461 if( !( p_sys->i_tracks = MP4_BoxCount( p_sys->p_root, "/moov/trak" ) ) )
463 msg_Err( p_demux, "cannot find any /moov/trak" );
466 msg_Dbg( p_demux, "found %d track%c",
468 p_sys->i_tracks ? 's':' ' );
470 /* allocate memory */
471 p_sys->track = calloc( p_sys->i_tracks, sizeof( mp4_track_t ) );
472 if( p_sys->track == NULL )
474 memset( p_sys->track, 0, p_sys->i_tracks * sizeof( mp4_track_t ) );
476 /* Search the first chap reference (like quicktime) and
477 * check that at least 1 stream is enabled */
478 p_sys->p_tref_chap = NULL;
479 b_enabled_es = false;
480 for( i = 0; i < p_sys->i_tracks; i++ )
482 MP4_Box_t *p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
485 MP4_Box_t *p_tkhd = MP4_BoxGet( p_trak, "tkhd" );
486 if( p_tkhd && (p_tkhd->data.p_tkhd->i_flags&MP4_TRACK_ENABLED) )
489 MP4_Box_t *p_chap = MP4_BoxGet( p_trak, "tref/chap", i );
490 if( p_chap && p_chap->data.p_tref_generic->i_entry_count > 0 && !p_sys->p_tref_chap )
491 p_sys->p_tref_chap = p_chap;
494 /* now process each track and extract all usefull information */
495 for( i = 0; i < p_sys->i_tracks; i++ )
497 p_trak = MP4_BoxGet( p_sys->p_root, "/moov/trak[%d]", i );
498 MP4_TrackCreate( p_demux, &p_sys->track[i], p_trak, !b_enabled_es );
500 if( p_sys->track[i].b_ok && !p_sys->track[i].b_chapter )
503 switch( p_sys->track[i].fmt.i_cat )
512 psz_cat = "subtitle";
520 msg_Dbg( p_demux, "adding track[Id 0x%x] %s (%s) language %s",
521 p_sys->track[i].i_track_ID, psz_cat,
522 p_sys->track[i].b_enable ? "enable":"disable",
523 p_sys->track[i].fmt.psz_language ?
524 p_sys->track[i].fmt.psz_language : "undef" );
526 else if( p_sys->track[i].b_ok && p_sys->track[i].b_chapter )
528 msg_Dbg( p_demux, "using track[Id 0x%x] for chapter language %s",
529 p_sys->track[i].i_track_ID,
530 p_sys->track[i].fmt.psz_language ?
531 p_sys->track[i].fmt.psz_language : "undef" );
535 msg_Dbg( p_demux, "ignoring track[Id 0x%x]",
536 p_sys->track[i].i_track_ID );
541 LoadChapter( p_demux );
548 MP4_BoxFree( p_demux->s, p_sys->p_root );
554 /*****************************************************************************
555 * Demux: read packet and send them to decoders
556 *****************************************************************************
557 * TODO check for newly selected track (ie audio upt to now )
558 *****************************************************************************/
559 static int Demux( demux_t *p_demux )
561 demux_sys_t *p_sys = p_demux->p_sys;
562 unsigned int i_track;
565 unsigned int i_track_selected;
567 /* check for newly selected/unselected track */
568 for( i_track = 0, i_track_selected = 0; i_track < p_sys->i_tracks;
571 mp4_track_t *tk = &p_sys->track[i_track];
574 if( !tk->b_ok || tk->b_chapter ||
575 ( tk->b_selected && tk->i_sample >= tk->i_sample_count ) )
580 es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b );
582 if( tk->b_selected && !b )
584 MP4_TrackUnselect( p_demux, tk );
586 else if( !tk->b_selected && b)
588 MP4_TrackSelect( p_demux, tk, MP4_GetMoviePTS( p_sys ) );
597 if( i_track_selected <= 0 )
599 p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
600 if( p_sys->i_timescale > 0 )
602 int64_t i_length = (mtime_t)1000000 *
603 (mtime_t)p_sys->i_duration /
604 (mtime_t)p_sys->i_timescale;
605 if( MP4_GetMoviePTS( p_sys ) >= i_length )
610 msg_Warn( p_demux, "no track selected, exiting..." );
615 MP4_UpdateSeekpoint( p_demux );
617 /* first wait for the good time to read a packet */
618 es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr + 1 );
620 p_sys->i_pcr = MP4_GetMoviePTS( p_sys );
622 /* we will read 100ms for each stream so ...*/
623 p_sys->i_time += __MAX( p_sys->i_timescale / 10 , 1 );
625 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
627 mp4_track_t *tk = &p_sys->track[i_track];
629 if( !tk->b_ok || tk->b_chapter || !tk->b_selected || tk->i_sample >= tk->i_sample_count )
632 while( MP4_TrackGetDTS( p_demux, tk ) < MP4_GetMoviePTS( p_sys ) )
635 msg_Dbg( p_demux, "tk(%i)=%lld mv=%lld", i_track,
636 MP4_TrackGetDTS( p_demux, tk ),
637 MP4_GetMoviePTS( p_sys ) );
640 if( MP4_TrackSampleSize( tk ) > 0 )
646 if( stream_Seek( p_demux->s, MP4_TrackGetPos( tk ) ) )
648 msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
650 MP4_TrackUnselect( p_demux, tk );
656 stream_Block( p_demux->s, MP4_TrackSampleSize(tk) )) )
658 msg_Warn( p_demux, "track[0x%x] will be disabled (eof?)",
660 MP4_TrackUnselect( p_demux, tk );
664 if( tk->b_drms && tk->p_drms )
666 drms_decrypt( tk->p_drms, (uint32_t*)p_block->p_buffer,
669 else if( tk->fmt.i_cat == SPU_ES )
671 if( tk->fmt.i_codec == VLC_FOURCC( 's', 'u', 'b', 't' ) &&
672 p_block->i_buffer >= 2 )
674 uint16_t i_size = GetWBE( p_block->p_buffer );
676 if( i_size + 2 <= p_block->i_buffer )
679 /* remove the length field, and append a '\0' */
680 memmove( &p_block->p_buffer[0],
681 &p_block->p_buffer[2], i_size );
682 p_block->p_buffer[i_size] = '\0';
683 p_block->i_buffer = i_size + 1;
685 /* convert \r -> \n */
686 while( ( p = strchr((char *) p_block->p_buffer, '\r' ) ) )
694 p_block->i_buffer = 0;
699 p_block->i_dts = MP4_TrackGetDTS( p_demux, tk ) + 1;
701 i_delta = MP4_TrackGetPTSDelta( tk );
703 p_block->i_pts = p_block->i_dts + i_delta;
704 else if( tk->fmt.i_cat != VIDEO_ES )
705 p_block->i_pts = p_block->i_dts;
709 if( !tk->b_drms || ( tk->b_drms && tk->p_drms ) )
710 es_out_Send( p_demux->out, tk->p_es, p_block );
714 if( MP4_TrackNextSample( p_demux, tk ) )
722 static void MP4_UpdateSeekpoint( demux_t *p_demux )
724 demux_sys_t *p_sys = p_demux->p_sys;
727 if( !p_sys->p_title )
729 i_time = MP4_GetMoviePTS( p_sys );
730 for( i = 0; i < p_sys->p_title->i_seekpoint; i++ )
732 if( i_time < p_sys->p_title->seekpoint[i]->i_time_offset )
737 if( i != p_demux->info.i_seekpoint && i >= 0 )
739 p_demux->info.i_seekpoint = i;
740 p_demux->info.i_update |= INPUT_UPDATE_SEEKPOINT;
743 /*****************************************************************************
744 * Seek: Got to i_date
745 ******************************************************************************/
746 static int Seek( demux_t *p_demux, mtime_t i_date )
748 demux_sys_t *p_sys = p_demux->p_sys;
749 unsigned int i_track;
751 /* First update update global time */
752 p_sys->i_time = i_date * p_sys->i_timescale / 1000000;
753 p_sys->i_pcr = i_date;
755 /* Now for each stream try to go to this time */
756 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
758 mp4_track_t *tk = &p_sys->track[i_track];
759 MP4_TrackSeek( p_demux, tk, i_date );
761 MP4_UpdateSeekpoint( p_demux );
765 /*****************************************************************************
767 *****************************************************************************/
768 static int Control( demux_t *p_demux, int i_query, va_list args )
770 demux_sys_t *p_sys = p_demux->p_sys;
777 case DEMUX_GET_POSITION:
778 pf = (double*)va_arg( args, double * );
779 if( p_sys->i_duration > 0 )
781 *pf = (double)p_sys->i_time / (double)p_sys->i_duration;
789 case DEMUX_SET_POSITION:
790 f = (double)va_arg( args, double );
791 if( p_sys->i_timescale > 0 )
793 i64 = (int64_t)( f * (double)1000000 *
794 (double)p_sys->i_duration /
795 (double)p_sys->i_timescale );
796 return Seek( p_demux, i64 );
798 else return VLC_SUCCESS;
801 pi64 = (int64_t*)va_arg( args, int64_t * );
802 if( p_sys->i_timescale > 0 )
804 *pi64 = (mtime_t)1000000 *
805 (mtime_t)p_sys->i_time /
806 (mtime_t)p_sys->i_timescale;
812 i64 = (int64_t)va_arg( args, int64_t );
813 return Seek( p_demux, i64 );
815 case DEMUX_GET_LENGTH:
816 pi64 = (int64_t*)va_arg( args, int64_t * );
817 if( p_sys->i_timescale > 0 )
819 *pi64 = (mtime_t)1000000 *
820 (mtime_t)p_sys->i_duration /
821 (mtime_t)p_sys->i_timescale;
827 msg_Warn( p_demux, "DEMUX_GET_FPS unimplemented !!" );
832 vlc_meta_t *p_meta = (vlc_meta_t *)va_arg( args, vlc_meta_t*);
833 MP4_Box_t *p_0xa9xxx;
835 MP4_Box_t *p_udta = MP4_BoxGet( p_sys->p_root, "/moov/udta/meta/ilst" );
838 p_udta = MP4_BoxGet( p_sys->p_root, "/moov/udta" );
845 for( p_0xa9xxx = p_udta->p_first; p_0xa9xxx != NULL;
846 p_0xa9xxx = p_0xa9xxx->p_next )
849 if( !p_0xa9xxx || !p_0xa9xxx->data.p_0xa9xxx )
852 /* FIXME FIXME: should convert from whatever the character
853 * encoding of MP4 meta data is to UTF-8. */
854 #define SET(fct) do { char *psz_utf = strdup( p_0xa9xxx->data.p_0xa9xxx->psz_text ? p_0xa9xxx->data.p_0xa9xxx->psz_text : "" ); \
855 if( psz_utf ) { EnsureUTF8( psz_utf ); \
856 fct( p_meta, psz_utf ); free( psz_utf ); } } while(0)
858 /* XXX Becarefull p_udta can have box that are not 0xa9xx */
859 switch( p_0xa9xxx->i_type )
861 case FOURCC_0xa9nam: /* Full name */
862 SET( vlc_meta_SetTitle );
865 SET( vlc_meta_SetArtist );
868 SET( vlc_meta_SetArtist );
871 SET( vlc_meta_SetCopyright );
873 case FOURCC_0xa9day: /* Creation Date */
874 SET( vlc_meta_SetDate );
876 case FOURCC_0xa9des: /* Description */
877 SET( vlc_meta_SetDescription );
879 case FOURCC_0xa9gen: /* Genre */
880 SET( vlc_meta_SetGenre );
883 case FOURCC_0xa9alb: /* Album */
884 SET( vlc_meta_SetAlbum );
887 case FOURCC_0xa9trk: /* Track */
888 SET( vlc_meta_SetTracknum );
891 case FOURCC_0xa9cmt: /* Commment */
892 SET( vlc_meta_SetDescription );
895 case FOURCC_0xa9url: /* URL */
896 SET( vlc_meta_SetURL );
899 case FOURCC_0xa9enc: /* Encoded By */
900 SET( vlc_meta_SetEncodedBy );
904 case FOURCC_0xa9inf: /* Information */
905 case FOURCC_0xa9dir: /* Director */
906 case FOURCC_0xa9dis: /* Disclaimer */
907 case FOURCC_0xa9req: /* Requirements */
908 case FOURCC_0xa9fmt: /* Original Format */
909 case FOURCC_0xa9dsa: /* Display Source As */
910 case FOURCC_0xa9hst: /* Host Computer */
911 case FOURCC_0xa9prd: /* Producer */
912 case FOURCC_0xa9prf: /* Performers */
913 case FOURCC_0xa9ope: /* Original Performer */
914 case FOURCC_0xa9src: /* Providers Source Content */
915 case FOURCC_0xa9wrt: /* Writer */
916 case FOURCC_0xa9com: /* Composer */
917 case FOURCC_WLOC: /* Window Location */
918 /* TODO one day, but they aren't really meaningfull */
929 case DEMUX_GET_TITLE_INFO:
931 input_title_t ***ppp_title = (input_title_t***)va_arg( args, input_title_t*** );
932 int *pi_int = (int*)va_arg( args, int* );
933 int *pi_title_offset = (int*)va_arg( args, int* );
934 int *pi_seekpoint_offset = (int*)va_arg( args, int* );
936 if( !p_sys->p_title )
940 *ppp_title = malloc( sizeof( input_title_t**) );
941 (*ppp_title)[0] = vlc_input_title_Duplicate( p_sys->p_title );
942 *pi_title_offset = 0;
943 *pi_seekpoint_offset = 0;
946 case DEMUX_SET_TITLE:
948 const int i_title = (int)va_arg( args, int );
949 if( !p_sys->p_title || i_title != 0 )
953 case DEMUX_SET_SEEKPOINT:
955 const int i_seekpoint = (int)va_arg( args, int );
956 if( !p_sys->p_title )
958 return Seek( p_demux, p_sys->p_title->seekpoint[i_seekpoint]->i_time_offset );
961 case DEMUX_SET_NEXT_DEMUX_TIME:
962 case DEMUX_SET_GROUP:
963 case DEMUX_HAS_UNSUPPORTED_META:
964 case DEMUX_GET_ATTACHMENTS:
968 msg_Warn( p_demux, "control query %u unimplemented", i_query );
973 /*****************************************************************************
974 * Close: frees unused data
975 *****************************************************************************/
976 static void Close ( vlc_object_t * p_this )
978 demux_t * p_demux = (demux_t *)p_this;
979 demux_sys_t *p_sys = p_demux->p_sys;
980 unsigned int i_track;
982 msg_Dbg( p_demux, "freeing all memory" );
984 MP4_BoxFree( p_demux->s, p_sys->p_root );
985 for( i_track = 0; i_track < p_sys->i_tracks; i_track++ )
987 MP4_TrackDestroy( &p_sys->track[i_track] );
989 FREENULL( p_sys->track );
992 vlc_input_title_Delete( p_sys->p_title );
999 /****************************************************************************
1000 * Local functions, specific to vlc
1001 ****************************************************************************/
1003 static void LoadChapterGpac( demux_t *p_demux, MP4_Box_t *p_chpl )
1005 demux_sys_t *p_sys = p_demux->p_sys;
1008 p_sys->p_title = vlc_input_title_New();
1009 for( i = 0; i < p_chpl->data.p_chpl->i_chapter; i++ )
1011 seekpoint_t *s = vlc_seekpoint_New();
1013 s->psz_name = strdup( p_chpl->data.p_chpl->chapter[i].psz_name );
1014 EnsureUTF8( s->psz_name );
1015 s->i_time_offset = p_chpl->data.p_chpl->chapter[i].i_start / 10;
1016 TAB_APPEND( p_sys->p_title->i_seekpoint, p_sys->p_title->seekpoint, s );
1019 static void LoadChapterApple( demux_t *p_demux, mp4_track_t *tk )
1021 demux_sys_t *p_sys = p_demux->p_sys;
1023 for( tk->i_sample = 0; tk->i_sample < tk->i_sample_count; tk->i_sample++ )
1025 const int64_t i_dts = MP4_TrackGetDTS( p_demux, tk );
1026 const int64_t i_pts_delta = MP4_TrackGetPTSDelta( tk );
1027 const unsigned int i_size = MP4_TrackSampleSize( tk );
1029 if( i_size > 0 && !stream_Seek( p_demux->s, MP4_TrackGetPos( tk ) ) )
1032 const int i_read = stream_Read( p_demux->s, p_buffer, __MIN( sizeof(p_buffer), i_size ) );
1033 const int i_len = __MIN( GetWBE(p_buffer), i_read-2 );
1037 seekpoint_t *s = vlc_seekpoint_New();
1039 s->psz_name = strndup( &p_buffer[2], i_len );
1040 EnsureUTF8( s->psz_name );
1042 s->i_time_offset = i_dts + __MAX( i_pts_delta, 0 );
1044 if( !p_sys->p_title )
1045 p_sys->p_title = vlc_input_title_New();
1046 TAB_APPEND( p_sys->p_title->i_seekpoint, p_sys->p_title->seekpoint, s );
1049 if( tk->i_sample+1 >= tk->chunk[tk->i_chunk].i_sample_first +
1050 tk->chunk[tk->i_chunk].i_sample_count )
1054 static void LoadChapter( demux_t *p_demux )
1056 demux_sys_t *p_sys = p_demux->p_sys;
1059 if( ( p_chpl = MP4_BoxGet( p_sys->p_root, "/moov/udta/chpl" ) ) && p_chpl->data.p_chpl->i_chapter > 0 )
1061 LoadChapterGpac( p_demux, p_chpl );
1063 else if( p_sys->p_tref_chap )
1065 MP4_Box_data_tref_generic_t *p_chap = p_sys->p_tref_chap->data.p_tref_generic;
1068 /* Load the first subtitle track like quicktime */
1069 for( i = 0; i < p_chap->i_entry_count; i++ )
1071 for( j = 0; j < p_sys->i_tracks; j++ )
1073 mp4_track_t *tk = &p_sys->track[j];
1074 if( tk->b_ok && tk->i_track_ID == p_chap->i_track_ID[i] &&
1075 tk->fmt.i_cat == SPU_ES && tk->fmt.i_codec == VLC_FOURCC( 's', 'u', 'b', 't' ) )
1078 if( j < p_sys->i_tracks )
1080 LoadChapterApple( p_demux, &p_sys->track[i] );
1087 /* now create basic chunk data, the rest will be filled by MP4_CreateSamplesIndex */
1088 static int TrackCreateChunksIndex( demux_t *p_demux,
1089 mp4_track_t *p_demux_track )
1091 MP4_Box_t *p_co64; /* give offset for each chunk, same for stco and co64 */
1094 unsigned int i_chunk;
1095 unsigned int i_index, i_last;
1097 if( ( !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "stco" ) )&&
1098 !(p_co64 = MP4_BoxGet( p_demux_track->p_stbl, "co64" ) ) )||
1099 ( !(p_stsc = MP4_BoxGet( p_demux_track->p_stbl, "stsc" ) ) ))
1101 return( VLC_EGENERIC );
1104 p_demux_track->i_chunk_count = p_co64->data.p_co64->i_entry_count;
1105 if( !p_demux_track->i_chunk_count )
1107 msg_Warn( p_demux, "no chunk defined" );
1108 return( VLC_EGENERIC );
1110 p_demux_track->chunk = calloc( p_demux_track->i_chunk_count,
1111 sizeof( mp4_chunk_t ) );
1112 if( p_demux_track->chunk == NULL )
1117 /* first we read chunk offset */
1118 for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1120 mp4_chunk_t *ck = &p_demux_track->chunk[i_chunk];
1122 ck->i_offset = p_co64->data.p_co64->i_chunk_offset[i_chunk];
1124 ck->i_first_dts = 0;
1125 ck->p_sample_count_dts = NULL;
1126 ck->p_sample_delta_dts = NULL;
1127 ck->p_sample_count_pts = NULL;
1128 ck->p_sample_offset_pts = NULL;
1131 /* now we read index for SampleEntry( soun vide mp4a mp4v ...)
1132 to be used for the sample XXX begin to 1
1133 We construct it begining at the end */
1134 i_last = p_demux_track->i_chunk_count; /* last chunk proceded */
1135 i_index = p_stsc->data.p_stsc->i_entry_count;
1138 msg_Warn( p_demux, "cannot read chunk table or table empty" );
1139 return( VLC_EGENERIC );
1144 for( i_chunk = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
1145 i_chunk < i_last; i_chunk++ )
1147 if( i_chunk >= p_demux_track->i_chunk_count )
1149 msg_Warn( p_demux, "corrupted chunk table" );
1150 return VLC_EGENERIC;
1153 p_demux_track->chunk[i_chunk].i_sample_description_index =
1154 p_stsc->data.p_stsc->i_sample_description_index[i_index];
1155 p_demux_track->chunk[i_chunk].i_sample_count =
1156 p_stsc->data.p_stsc->i_samples_per_chunk[i_index];
1158 i_last = p_stsc->data.p_stsc->i_first_chunk[i_index] - 1;
1161 p_demux_track->chunk[0].i_sample_first = 0;
1162 for( i_chunk = 1; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1164 p_demux_track->chunk[i_chunk].i_sample_first =
1165 p_demux_track->chunk[i_chunk-1].i_sample_first +
1166 p_demux_track->chunk[i_chunk-1].i_sample_count;
1169 msg_Dbg( p_demux, "track[Id 0x%x] read %d chunk",
1170 p_demux_track->i_track_ID, p_demux_track->i_chunk_count );
1175 static int TrackCreateSamplesIndex( demux_t *p_demux,
1176 mp4_track_t *p_demux_track )
1179 MP4_Box_data_stsz_t *stsz;
1180 MP4_Box_data_stts_t *stts;
1181 /* TODO use also stss and stsh table for seeking */
1182 /* FIXME use edit table */
1187 int64_t i_index_sample_used;
1192 * Gives the sample size for each samples. There is also a stz2 table
1193 * (compressed form) that we need to implement TODO */
1194 p_box = MP4_BoxGet( p_demux_track->p_stbl, "stsz" );
1197 /* FIXME and stz2 */
1198 msg_Warn( p_demux, "cannot find STSZ box" );
1199 return VLC_EGENERIC;
1201 stsz = p_box->data.p_stsz;
1204 * Gives mapping between sample and decoding time
1206 p_box = MP4_BoxGet( p_demux_track->p_stbl, "stts" );
1209 msg_Warn( p_demux, "cannot find STTS box" );
1210 return VLC_EGENERIC;
1212 stts = p_box->data.p_stts;
1214 /* Use stsz table to create a sample number -> sample size table */
1215 p_demux_track->i_sample_count = stsz->i_sample_count;
1216 if( stsz->i_sample_size )
1218 /* 1: all sample have the same size, so no need to construct a table */
1219 p_demux_track->i_sample_size = stsz->i_sample_size;
1220 p_demux_track->p_sample_size = NULL;
1224 /* 2: each sample can have a different size */
1225 p_demux_track->i_sample_size = 0;
1226 p_demux_track->p_sample_size =
1227 calloc( p_demux_track->i_sample_count, sizeof( uint32_t ) );
1228 if( p_demux_track->p_sample_size == NULL )
1231 for( i_sample = 0; i_sample < p_demux_track->i_sample_count; i_sample++ )
1233 p_demux_track->p_sample_size[i_sample] =
1234 stsz->i_entry_size[i_sample];
1238 /* Use stts table to create a sample number -> dts table.
1239 * XXX: if we don't want to waste too much memory, we can't expand
1240 * the box! so each chunk will contain an "extract" of this table
1241 * for fast research (problem with raw stream where a sample is sometime
1242 * just channels*bits_per_sample/8 */
1245 i_index = 0; i_index_sample_used = 0;
1246 for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1248 mp4_chunk_t *ck = &p_demux_track->chunk[i_chunk];
1249 int64_t i_entry, i_sample_count, i;
1252 ck->i_first_dts = i_last_dts;
1254 /* count how many entries are needed for this chunk
1255 * for p_sample_delta_dts and p_sample_count_dts */
1256 i_sample_count = ck->i_sample_count;
1259 while( i_sample_count > 0 )
1261 i_sample_count -= stts->i_sample_count[i_index+i_entry];
1262 /* don't count already used sample in this entry */
1264 i_sample_count += i_index_sample_used;
1270 ck->p_sample_count_dts = calloc( i_entry, sizeof( uint32_t ) );
1271 ck->p_sample_delta_dts = calloc( i_entry, sizeof( uint32_t ) );
1274 i_sample_count = ck->i_sample_count;
1275 for( i = 0; i < i_entry; i++ )
1280 i_rest = stts->i_sample_count[i_index] - i_index_sample_used;
1282 i_used = __MIN( i_rest, i_sample_count );
1284 i_index_sample_used += i_used;
1285 i_sample_count -= i_used;
1287 ck->p_sample_count_dts[i] = i_used;
1288 ck->p_sample_delta_dts[i] = stts->i_sample_delta[i_index];
1290 i_last_dts += i_used * ck->p_sample_delta_dts[i];
1292 if( i_index_sample_used >= stts->i_sample_count[i_index] )
1295 i_index_sample_used = 0;
1301 * Gives the delta between decoding time (dts) and composition table (pts)
1303 p_box = MP4_BoxGet( p_demux_track->p_stbl, "ctts" );
1306 MP4_Box_data_ctts_t *ctts = p_box->data.p_ctts;
1308 msg_Warn( p_demux, "CTTS table" );
1310 /* Create pts-dts table per chunk */
1311 i_index = 0; i_index_sample_used = 0;
1312 for( i_chunk = 0; i_chunk < p_demux_track->i_chunk_count; i_chunk++ )
1314 mp4_chunk_t *ck = &p_demux_track->chunk[i_chunk];
1315 int64_t i_entry, i_sample_count, i;
1317 /* count how many entries are needed for this chunk
1318 * for p_sample_delta_dts and p_sample_count_dts */
1319 i_sample_count = ck->i_sample_count;
1322 while( i_sample_count > 0 )
1324 i_sample_count -= ctts->i_sample_count[i_index+i_entry];
1326 /* don't count already used sample in this entry */
1328 i_sample_count += i_index_sample_used;
1334 ck->p_sample_count_pts = calloc( i_entry, sizeof( uint32_t ) );
1335 ck->p_sample_offset_pts = calloc( i_entry, sizeof( int32_t ) );
1338 i_sample_count = ck->i_sample_count;
1339 for( i = 0; i < i_entry; i++ )
1344 i_rest = ctts->i_sample_count[i_index] -
1345 i_index_sample_used;
1347 i_used = __MIN( i_rest, i_sample_count );
1349 i_index_sample_used += i_used;
1350 i_sample_count -= i_used;
1352 ck->p_sample_count_pts[i] = i_used;
1353 ck->p_sample_offset_pts[i] = ctts->i_sample_offset[i_index];
1355 if( i_index_sample_used >= ctts->i_sample_count[i_index] )
1358 i_index_sample_used = 0;
1364 msg_Dbg( p_demux, "track[Id 0x%x] read %d samples length:%"PRId64"s",
1365 p_demux_track->i_track_ID, p_demux_track->i_sample_count,
1366 i_last_dts / p_demux_track->i_timescale );
1373 * Create ES and PES to init decoder if needed, for a track starting at i_chunk
1375 static int TrackCreateES( demux_t *p_demux, mp4_track_t *p_track,
1376 unsigned int i_chunk, es_out_id_t **pp_es )
1378 MP4_Box_t *p_sample;
1385 if( !p_track->chunk[i_chunk].i_sample_description_index )
1387 msg_Warn( p_demux, "invalid SampleEntry index (track[Id 0x%x])",
1388 p_track->i_track_ID );
1389 return VLC_EGENERIC;
1392 p_sample = MP4_BoxGet( p_track->p_stsd, "[%d]",
1393 p_track->chunk[i_chunk].i_sample_description_index - 1 );
1396 ( !p_sample->data.p_data && p_track->fmt.i_cat != SPU_ES ) )
1398 msg_Warn( p_demux, "cannot find SampleEntry (track[Id 0x%x])",
1399 p_track->i_track_ID );
1400 return VLC_EGENERIC;
1403 p_track->p_sample = p_sample;
1405 if( p_track->fmt.i_cat == AUDIO_ES && ( p_track->i_sample_size == 1 || p_track->i_sample_size == 2 ) )
1407 MP4_Box_data_sample_soun_t *p_soun;
1409 p_soun = p_sample->data.p_sample_soun;
1411 if( p_soun->i_qt_version == 0 )
1413 switch( p_sample->i_type )
1415 case VLC_FOURCC( 'i', 'm', 'a', '4' ):
1416 p_soun->i_qt_version = 1;
1417 p_soun->i_sample_per_packet = 64;
1418 p_soun->i_bytes_per_packet = 34;
1419 p_soun->i_bytes_per_frame = 34 * p_soun->i_channelcount;
1420 p_soun->i_bytes_per_sample = 2;
1422 case VLC_FOURCC( 'M', 'A', 'C', '3' ):
1423 p_soun->i_qt_version = 1;
1424 p_soun->i_sample_per_packet = 6;
1425 p_soun->i_bytes_per_packet = 2;
1426 p_soun->i_bytes_per_frame = 2 * p_soun->i_channelcount;
1427 p_soun->i_bytes_per_sample = 2;
1429 case VLC_FOURCC( 'M', 'A', 'C', '6' ):
1430 p_soun->i_qt_version = 1;
1431 p_soun->i_sample_per_packet = 12;
1432 p_soun->i_bytes_per_packet = 2;
1433 p_soun->i_bytes_per_frame = 2 * p_soun->i_channelcount;
1434 p_soun->i_bytes_per_sample = 2;
1436 case VLC_FOURCC( 'a', 'l', 'a', 'w' ):
1437 case VLC_FOURCC( 'u', 'l', 'a', 'w' ):
1438 p_soun->i_samplesize = 8;
1440 case VLC_FOURCC( 'N', 'O', 'N', 'E' ):
1441 case VLC_FOURCC( 'r', 'a', 'w', ' ' ):
1442 case VLC_FOURCC( 't', 'w', 'o', 's' ):
1443 case VLC_FOURCC( 's', 'o', 'w', 't' ):
1444 /* What would be the fun if you could trust the .mov */
1445 p_track->i_sample_size = ((p_soun->i_samplesize+7)/8) * p_soun->i_channelcount;
1452 else if( p_soun->i_qt_version == 1 && p_soun->i_sample_per_packet <= 0 )
1454 p_soun->i_qt_version = 0;
1458 /* It's a little ugly but .. there are special cases */
1459 switch( p_sample->i_type )
1461 case( VLC_FOURCC( '.', 'm', 'p', '3' ) ):
1462 case( VLC_FOURCC( 'm', 's', 0x00, 0x55 ) ):
1463 p_track->fmt.i_codec = VLC_FOURCC( 'm', 'p', 'g', 'a' );
1466 case( VLC_FOURCC( 'r', 'a', 'w', ' ' ) ):
1467 case( VLC_FOURCC( 'N', 'O', 'N', 'E' ) ):
1469 MP4_Box_data_sample_soun_t *p_soun = p_sample->data.p_sample_soun;
1471 if(p_soun && (p_soun->i_samplesize+7)/8 == 1 )
1472 p_track->fmt.i_codec = VLC_FOURCC( 'u', '8', ' ', ' ' );
1474 p_track->fmt.i_codec = VLC_FOURCC( 't', 'w', 'o', 's' );
1476 /* Buggy files workaround */
1477 if( p_sample->data.p_sample_soun && (p_track->i_timescale !=
1478 p_sample->data.p_sample_soun->i_sampleratehi) )
1480 MP4_Box_data_sample_soun_t *p_soun =
1481 p_sample->data.p_sample_soun;
1483 msg_Warn( p_demux, "i_timescale (%"PRIu64") != i_sampleratehi "
1484 "(%u), making both equal (report any problem).",
1485 p_track->i_timescale, p_soun->i_sampleratehi );
1487 if( p_soun->i_sampleratehi )
1488 p_track->i_timescale = p_soun->i_sampleratehi;
1490 p_soun->i_sampleratehi = p_track->i_timescale;
1495 case( VLC_FOURCC( 's', '2', '6', '3' ) ):
1496 p_track->fmt.i_codec = VLC_FOURCC( 'h', '2', '6', '3' );
1499 case( VLC_FOURCC( 't', 'e', 'x', 't' ) ):
1500 case( VLC_FOURCC( 't', 'x', '3', 'g' ) ):
1501 p_track->fmt.i_codec = VLC_FOURCC( 's', 'u', 'b', 't' );
1502 /* FIXME: Not true, could be UTF-16 with a Byte Order Mark (0xfeff) */
1503 /* FIXME UTF-8 doesn't work here ? */
1504 if( p_track->b_mac_encoding )
1505 p_track->fmt.subs.psz_encoding = strdup( "MAC" );
1507 p_track->fmt.subs.psz_encoding = strdup( "UTF-8" );
1510 case VLC_FOURCC('y','v','1','2'):
1511 p_track->fmt.i_codec = VLC_FOURCC('Y','V','1','2');
1513 case VLC_FOURCC('y','u','v','2'):
1514 p_track->fmt.i_codec = VLC_FOURCC('Y','U','Y','2');
1517 case VLC_FOURCC('i','n','2','4'):
1518 /* in in24/in32 there's enda-atom to tell it's little-endian (if present) */
1519 if( ( MP4_BoxGet( p_sample, "wave/enda" ) ) ||
1520 ( MP4_BoxGet( p_sample, "enda" ) ) )
1522 p_track->fmt.i_codec = VLC_FOURCC('4','2','n','i');
1524 p_track->fmt.i_codec = p_sample->i_type;
1529 p_track->fmt.i_codec = p_sample->i_type;
1533 /* now see if esds is present and if so create a data packet
1534 with decoder_specific_info */
1535 #define p_decconfig p_esds->data.p_esds->es_descriptor.p_decConfigDescr
1536 if( ( ( p_esds = MP4_BoxGet( p_sample, "esds" ) ) ||
1537 ( p_esds = MP4_BoxGet( p_sample, "wave/esds" ) ) )&&
1538 ( p_esds->data.p_esds )&&
1541 /* First update information based on i_objectTypeIndication */
1542 switch( p_decconfig->i_objectTypeIndication )
1544 case( 0x20 ): /* MPEG4 VIDEO */
1545 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','v' );
1548 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
1555 case( 0x65): /* MPEG2 video */
1556 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
1558 /* Theses are MPEG2-AAC */
1559 case( 0x66): /* main profile */
1560 case( 0x67): /* Low complexity profile */
1561 case( 0x68): /* Scaleable Sampling rate profile */
1562 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
1564 /* true MPEG 2 audio */
1566 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','a' );
1568 case( 0x6a): /* MPEG1 video */
1569 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
1571 case( 0x6b): /* MPEG1 audio */
1572 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','a' );
1574 case( 0x6c ): /* jpeg */
1575 p_track->fmt.i_codec = VLC_FOURCC( 'j','p','e','g' );
1577 case( 0x6d ): /* png */
1578 p_track->fmt.i_codec = VLC_FOURCC( 'p','n','g',' ' );
1580 case( 0x6e ): /* jpeg200 */
1581 p_track->fmt.i_codec = VLC_FOURCC( 'M','J','2','C' );
1583 case( 0xa3 ): /* vc1 */
1584 p_track->fmt.i_codec = VLC_FOURCC( 'W','V','C','1' );
1588 case( 0xe0 ): /* NeroDigital: dvd subs */
1589 if( p_track->fmt.i_cat == SPU_ES )
1591 p_track->fmt.i_codec = VLC_FOURCC( 's','p','u',' ' );
1592 if( p_track->i_width > 0 )
1593 p_track->fmt.subs.spu.i_original_frame_width = p_track->i_width;
1594 if( p_track->i_height > 0 )
1595 p_track->fmt.subs.spu.i_original_frame_height = p_track->i_height;
1598 case( 0xe1 ): /* QCelp for 3gp */
1599 if( p_track->fmt.i_cat == AUDIO_ES )
1601 p_track->fmt.i_codec = VLC_FOURCC( 'Q','c','l','p' );
1607 /* Unknown entry, but don't touch i_fourcc */
1609 "unknown objectTypeIndication(0x%x) (Track[ID 0x%x])",
1610 p_decconfig->i_objectTypeIndication,
1611 p_track->i_track_ID );
1614 p_track->fmt.i_extra = p_decconfig->i_decoder_specific_info_len;
1615 if( p_track->fmt.i_extra > 0 )
1617 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1618 memcpy( p_track->fmt.p_extra, p_decconfig->p_decoder_specific_info,
1619 p_track->fmt.i_extra );
1624 switch( p_sample->i_type )
1626 /* qt decoder, send the complete chunk */
1627 case VLC_FOURCC ('h', 'd', 'v', '1'): // HDV 720p30
1628 case VLC_FOURCC ('h', 'd', 'v', '2'): // HDV 1080i60
1629 case VLC_FOURCC ('h', 'd', 'v', '3'): // HDV 1080i50
1630 case VLC_FOURCC ('h', 'd', 'v', '5'): // HDV 720p25
1631 case VLC_FOURCC ('m', 'x', '5', 'n'): // MPEG2 IMX NTSC 525/60 50mb/s produced by FCP
1632 case VLC_FOURCC ('m', 'x', '5', 'p'): // MPEG2 IMX PAL 625/60 50mb/s produced by FCP
1633 case VLC_FOURCC ('m', 'x', '4', 'n'): // MPEG2 IMX NTSC 525/60 40mb/s produced by FCP
1634 case VLC_FOURCC ('m', 'x', '4', 'p'): // MPEG2 IMX PAL 625/60 40mb/s produced by FCP
1635 case VLC_FOURCC ('m', 'x', '3', 'n'): // MPEG2 IMX NTSC 525/60 30mb/s produced by FCP
1636 case VLC_FOURCC ('m', 'x', '3', 'p'): // MPEG2 IMX PAL 625/50 30mb/s produced by FCP
1637 case VLC_FOURCC ('x', 'd', 'v', '2'): // XDCAM HD 1080i60
1638 case VLC_FOURCC ('A', 'V', 'm', 'p'): // AVID IMX PAL
1639 p_track->fmt.i_codec = VLC_FOURCC( 'm','p','g','v' );
1641 /* qt decoder, send the complete chunk */
1642 case VLC_FOURCC( 'S', 'V', 'Q', '3' ):
1643 case VLC_FOURCC( 'S', 'V', 'Q', '1' ):
1644 case VLC_FOURCC( 'V', 'P', '3', '1' ):
1645 case VLC_FOURCC( '3', 'I', 'V', '1' ):
1646 case VLC_FOURCC( 'Z', 'y', 'G', 'o' ):
1647 p_track->fmt.i_extra =
1648 p_sample->data.p_sample_vide->i_qt_image_description;
1649 if( p_track->fmt.i_extra > 0 )
1651 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1652 memcpy( p_track->fmt.p_extra,
1653 p_sample->data.p_sample_vide->p_qt_image_description,
1654 p_track->fmt.i_extra);
1657 case VLC_FOURCC( 'Q', 'D', 'M', 'C' ):
1658 case VLC_FOURCC( 'Q', 'D', 'M', '2' ):
1659 case VLC_FOURCC( 'Q', 'c', 'l', 'p' ):
1660 case VLC_FOURCC( 's', 'a', 'm', 'r' ):
1661 case VLC_FOURCC( 'a', 'l', 'a', 'c' ):
1662 p_track->fmt.i_extra =
1663 p_sample->data.p_sample_soun->i_qt_description;
1664 if( p_track->fmt.i_extra > 0 )
1666 p_track->fmt.p_extra = malloc( p_track->fmt.i_extra );
1667 memcpy( p_track->fmt.p_extra,
1668 p_sample->data.p_sample_soun->p_qt_description,
1669 p_track->fmt.i_extra);
1673 /* avc1: send avcC (h264 without annexe B, ie without start code)*/
1674 case VLC_FOURCC( 'a', 'v', 'c', '1' ):
1676 MP4_Box_t *p_avcC = MP4_BoxGet( p_sample, "avcC" );
1680 p_track->fmt.i_extra = p_avcC->data.p_avcC->i_avcC;
1681 p_track->fmt.p_extra = malloc( p_avcC->data.p_avcC->i_avcC );
1682 memcpy( p_track->fmt.p_extra, p_avcC->data.p_avcC->p_avcC,
1683 p_track->fmt.i_extra );
1687 msg_Err( p_demux, "missing avcC" );
1692 case VLC_FOURCC('m','s',0x00,0x02):
1693 case VLC_FOURCC('m','s',0x00,0x11):
1694 p_track->fmt.audio.i_blockalign = p_sample->data.p_sample_soun->i_bytes_per_frame;
1704 /* some last initialisation */
1705 switch( p_track->fmt.i_cat )
1708 p_track->fmt.video.i_width = p_sample->data.p_sample_vide->i_width;
1709 p_track->fmt.video.i_height = p_sample->data.p_sample_vide->i_height;
1710 p_track->fmt.video.i_bits_per_pixel =
1711 p_sample->data.p_sample_vide->i_depth;
1713 /* fall on display size */
1714 if( p_track->fmt.video.i_width <= 0 )
1715 p_track->fmt.video.i_width = p_track->i_width;
1716 if( p_track->fmt.video.i_height <= 0 )
1717 p_track->fmt.video.i_height = p_track->i_height;
1719 /* Find out apect ratio from display size */
1720 if( p_track->i_width > 0 && p_track->i_height > 0 &&
1721 /* Work-around buggy muxed files */
1722 p_sample->data.p_sample_vide->i_width != p_track->i_width )
1723 p_track->fmt.video.i_aspect =
1724 VOUT_ASPECT_FACTOR * p_track->i_width / p_track->i_height;
1726 /* Support for cropping (eg. in H263 files) */
1727 p_track->fmt.video.i_visible_width = p_track->fmt.video.i_width;
1728 p_track->fmt.video.i_visible_height = p_track->fmt.video.i_height;
1731 p_track->fmt.video.i_frame_rate = p_track->i_timescale;
1732 p_track->fmt.video.i_frame_rate_base = 1;
1734 if( p_track->fmt.video.i_frame_rate &&
1735 (p_box = MP4_BoxGet( p_track->p_stbl, "stts" )) &&
1736 p_box->data.p_stts->i_entry_count >= 1 )
1738 p_track->fmt.video.i_frame_rate_base =
1739 p_box->data.p_stts->i_sample_delta[0];
1745 p_track->fmt.audio.i_channels =
1746 p_sample->data.p_sample_soun->i_channelcount;
1747 p_track->fmt.audio.i_rate =
1748 p_sample->data.p_sample_soun->i_sampleratehi;
1749 p_track->fmt.i_bitrate = p_sample->data.p_sample_soun->i_channelcount *
1750 p_sample->data.p_sample_soun->i_sampleratehi *
1751 p_sample->data.p_sample_soun->i_samplesize;
1752 p_track->fmt.audio.i_bitspersample =
1753 p_sample->data.p_sample_soun->i_samplesize;
1761 *pp_es = es_out_Add( p_demux->out, &p_track->fmt );
1766 /* given a time it return sample/chunk
1767 * it also update elst field of the track
1769 static int TrackTimeToSampleChunk( demux_t *p_demux, mp4_track_t *p_track,
1770 int64_t i_start, uint32_t *pi_chunk,
1771 uint32_t *pi_sample )
1773 demux_sys_t *p_sys = p_demux->p_sys;
1776 unsigned int i_sample;
1777 unsigned int i_chunk;
1780 /* FIXME see if it's needed to check p_track->i_chunk_count */
1781 if( p_track->i_chunk_count == 0 )
1782 return( VLC_EGENERIC );
1784 /* handle elst (find the correct one) */
1785 MP4_TrackSetELST( p_demux, p_track, i_start );
1786 if( p_track->p_elst && p_track->p_elst->data.p_elst->i_entry_count > 0 )
1788 MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;
1789 int64_t i_mvt= i_start * p_sys->i_timescale / (int64_t)1000000;
1791 /* now calculate i_start for this elst */
1793 i_start -= p_track->i_elst_time * INT64_C(1000000) / p_sys->i_timescale;
1801 /* to track time scale */
1802 i_start = i_start * p_track->i_timescale / (int64_t)1000000;
1803 /* add elst offset */
1804 if( ( elst->i_media_rate_integer[p_track->i_elst] > 0 ||
1805 elst->i_media_rate_fraction[p_track->i_elst] > 0 ) &&
1806 elst->i_media_time[p_track->i_elst] > 0 )
1808 i_start += elst->i_media_time[p_track->i_elst];
1811 msg_Dbg( p_demux, "elst (%d) gives %"PRId64"ms (movie)-> %"PRId64
1812 "ms (track)", p_track->i_elst,
1813 i_mvt * 1000 / p_sys->i_timescale,
1814 i_start * 1000 / p_track->i_timescale );
1818 /* convert absolute time to in timescale unit */
1819 i_start = i_start * p_track->i_timescale / (int64_t)1000000;
1822 /* we start from sample 0/chunk 0, hope it won't take too much time */
1823 /* *** find good chunk *** */
1824 for( i_chunk = 0; ; i_chunk++ )
1826 if( i_chunk + 1 >= p_track->i_chunk_count )
1828 /* at the end and can't check if i_start in this chunk,
1829 it will be check while searching i_sample */
1830 i_chunk = p_track->i_chunk_count - 1;
1834 if( (uint64_t)i_start >= p_track->chunk[i_chunk].i_first_dts &&
1835 (uint64_t)i_start < p_track->chunk[i_chunk + 1].i_first_dts )
1841 /* *** find sample in the chunk *** */
1842 i_sample = p_track->chunk[i_chunk].i_sample_first;
1843 i_dts = p_track->chunk[i_chunk].i_first_dts;
1844 for( i_index = 0; i_sample < p_track->chunk[i_chunk].i_sample_count; )
1847 p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
1848 p_track->chunk[i_chunk].p_sample_delta_dts[i_index] < (uint64_t)i_start )
1851 p_track->chunk[i_chunk].p_sample_count_dts[i_index] *
1852 p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
1854 i_sample += p_track->chunk[i_chunk].p_sample_count_dts[i_index];
1859 if( p_track->chunk[i_chunk].p_sample_delta_dts[i_index] <= 0 )
1863 i_sample += ( i_start - i_dts ) /
1864 p_track->chunk[i_chunk].p_sample_delta_dts[i_index];
1869 if( i_sample >= p_track->i_sample_count )
1871 msg_Warn( p_demux, "track[Id 0x%x] will be disabled "
1872 "(seeking too far) chunk=%d sample=%d",
1873 p_track->i_track_ID, i_chunk, i_sample );
1874 return( VLC_EGENERIC );
1878 /* *** Try to find nearest sync points *** */
1879 if( ( p_stss = MP4_BoxGet( p_track->p_stbl, "stss" ) ) )
1881 unsigned int i_index;
1883 "track[Id 0x%x] using Sync Sample Box (stss)",
1884 p_track->i_track_ID );
1885 for( i_index = 0; i_index < p_stss->data.p_stss->i_entry_count; i_index++ )
1887 if( p_stss->data.p_stss->i_sample_number[i_index] >= i_sample )
1891 msg_Dbg( p_demux, "stts gives %d --> %d (sample number)",
1893 p_stss->data.p_stss->i_sample_number[i_index-1] );
1894 i_sample = p_stss->data.p_stss->i_sample_number[i_index-1];
1895 /* new i_sample is less than old so i_chunk can only decreased */
1896 while( i_chunk > 0 &&
1897 i_sample < p_track->chunk[i_chunk].i_sample_first )
1904 msg_Dbg( p_demux, "stts gives %d --> %d (sample number)",
1906 p_stss->data.p_stss->i_sample_number[i_index] );
1907 i_sample = p_stss->data.p_stss->i_sample_number[i_index];
1908 /* new i_sample is more than old so i_chunk can only increased */
1909 while( i_chunk < p_track->i_chunk_count - 1 &&
1910 i_sample >= p_track->chunk[i_chunk].i_sample_first +
1911 p_track->chunk[i_chunk].i_sample_count )
1922 msg_Dbg( p_demux, "track[Id 0x%x] does not provide Sync "
1923 "Sample Box (stss)", p_track->i_track_ID );
1926 *pi_chunk = i_chunk;
1927 *pi_sample = i_sample;
1932 static int TrackGotoChunkSample( demux_t *p_demux, mp4_track_t *p_track,
1933 unsigned int i_chunk, unsigned int i_sample )
1935 bool b_reselect = false;
1937 /* now see if actual es is ok */
1938 if( (p_track->i_chunk >= p_track->i_chunk_count - 1) ||
1939 (p_track->chunk[p_track->i_chunk].i_sample_description_index !=
1940 p_track->chunk[i_chunk].i_sample_description_index) )
1942 msg_Warn( p_demux, "recreate ES for track[Id 0x%x]",
1943 p_track->i_track_ID );
1945 es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE,
1946 p_track->p_es, &b_reselect );
1948 es_out_Del( p_demux->out, p_track->p_es );
1950 p_track->p_es = NULL;
1952 if( TrackCreateES( p_demux, p_track, i_chunk, &p_track->p_es ) )
1954 msg_Err( p_demux, "cannot create es for track[Id 0x%x]",
1955 p_track->i_track_ID );
1957 p_track->b_ok = false;
1958 p_track->b_selected = false;
1959 return VLC_EGENERIC;
1963 /* select again the new decoder */
1966 es_out_Control( p_demux->out, ES_OUT_SET_ES, p_track->p_es );
1969 p_track->i_chunk = i_chunk;
1970 p_track->i_sample = i_sample;
1972 return p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC;
1975 /****************************************************************************
1977 ****************************************************************************
1978 * Parse track information and create all needed data to run a track
1979 * If it succeed b_ok is set to 1 else to 0
1980 ****************************************************************************/
1981 static void MP4_TrackCreate( demux_t *p_demux, mp4_track_t *p_track,
1982 MP4_Box_t *p_box_trak,
1983 bool b_force_enable )
1985 demux_sys_t *p_sys = p_demux->p_sys;
1987 MP4_Box_t *p_tkhd = MP4_BoxGet( p_box_trak, "tkhd" );
1988 MP4_Box_t *p_tref = MP4_BoxGet( p_box_trak, "tref" );
2003 /* hint track unsupported */
2005 /* set default value (-> track unusable) */
2006 p_track->b_ok = false;
2007 p_track->b_enable = false;
2008 p_track->b_selected = false;
2009 p_track->b_chapter = false;
2010 p_track->b_mac_encoding = false;
2012 es_format_Init( &p_track->fmt, UNKNOWN_ES, 0 );
2019 /* do we launch this track by default ? */
2021 ( ( p_tkhd->data.p_tkhd->i_flags&MP4_TRACK_ENABLED ) != 0 );
2022 if( !p_track->b_enable )
2023 p_track->fmt.i_priority = -1;
2025 p_track->i_track_ID = p_tkhd->data.p_tkhd->i_track_ID;
2026 p_track->i_width = p_tkhd->data.p_tkhd->i_width / 65536;
2027 p_track->i_height = p_tkhd->data.p_tkhd->i_height / 65536;
2031 /* msg_Warn( p_demux, "unhandled box: tref --> FIXME" ); */
2034 p_mdhd = MP4_BoxGet( p_box_trak, "mdia/mdhd" );
2035 p_hdlr = MP4_BoxGet( p_box_trak, "mdia/hdlr" );
2037 if( ( !p_mdhd )||( !p_hdlr ) )
2042 p_track->i_timescale = p_mdhd->data.p_mdhd->i_timescale;
2043 if( !p_track->i_timescale )
2046 if( p_mdhd->data.p_mdhd->i_language_code < 0x800 )
2048 /* We can convert i_language_code into iso 639 code,
2050 strcpy( language, MP4_ConvertMacCode( p_mdhd->data.p_mdhd->i_language_code ) );
2051 p_track->b_mac_encoding = true;
2055 for( i = 0; i < 3; i++ )
2056 language[i] = p_mdhd->data.p_mdhd->i_language[i];
2060 switch( p_hdlr->data.p_hdlr->i_handler_type )
2062 case( FOURCC_soun ):
2063 if( !( p_smhd = MP4_BoxGet( p_box_trak, "mdia/minf/smhd" ) ) )
2067 p_track->fmt.i_cat = AUDIO_ES;
2070 case( FOURCC_vide ):
2071 if( !( p_vmhd = MP4_BoxGet( p_box_trak, "mdia/minf/vmhd" ) ) )
2075 p_track->fmt.i_cat = VIDEO_ES;
2078 case( FOURCC_text ):
2079 case( FOURCC_subp ):
2080 case( FOURCC_tx3g ):
2081 p_track->fmt.i_cat = SPU_ES;
2088 p_track->i_elst = 0;
2089 p_track->i_elst_time = 0;
2090 if( ( p_track->p_elst = p_elst = MP4_BoxGet( p_box_trak, "edts/elst" ) ) )
2092 MP4_Box_data_elst_t *elst = p_elst->data.p_elst;
2095 msg_Warn( p_demux, "elst box found" );
2096 for( i = 0; i < elst->i_entry_count; i++ )
2098 msg_Dbg( p_demux, " - [%d] duration=%"PRId64"ms media time=%"PRId64
2099 "ms) rate=%d.%d", i,
2100 elst->i_segment_duration[i] * 1000 / p_sys->i_timescale,
2101 elst->i_media_time[i] >= 0 ?
2102 (int64_t)(elst->i_media_time[i] * 1000 / p_track->i_timescale) :
2104 elst->i_media_rate_integer[i],
2105 elst->i_media_rate_fraction[i] );
2112 p_dinf = MP4_BoxGet( p_minf, "dinf" );
2114 if( !( p_track->p_stbl = MP4_BoxGet( p_box_trak,"mdia/minf/stbl" ) ) ||
2115 !( p_track->p_stsd = MP4_BoxGet( p_box_trak,"mdia/minf/stbl/stsd") ) )
2120 p_drms = MP4_BoxGet( p_track->p_stsd, "drms" );
2121 p_track->b_drms = p_drms != NULL;
2122 p_track->p_drms = p_track->b_drms ?
2123 p_drms->data.p_sample_soun->p_drms : NULL;
2126 if( *language && strcmp( language, "```" ) && strcmp( language, "und" ) )
2128 p_track->fmt.psz_language = strdup( language );
2131 p_udta = MP4_BoxGet( p_box_trak, "udta" );
2134 MP4_Box_t *p_0xa9xxx;
2135 for( p_0xa9xxx = p_udta->p_first; p_0xa9xxx != NULL;
2136 p_0xa9xxx = p_0xa9xxx->p_next )
2138 switch( p_0xa9xxx->i_type )
2140 case FOURCC_0xa9nam:
2141 p_track->fmt.psz_description =
2142 strdup( p_0xa9xxx->data.p_0xa9xxx->psz_text );
2148 /* Create chunk index table and sample index table */
2149 if( TrackCreateChunksIndex( p_demux,p_track ) ||
2150 TrackCreateSamplesIndex( p_demux, p_track ) )
2152 return; /* cannot create chunks index */
2155 p_track->i_chunk = 0;
2156 p_track->i_sample = 0;
2158 /* Mark chapter only track */
2159 if( !p_track->b_enable && p_sys->p_tref_chap )
2161 MP4_Box_data_tref_generic_t *p_chap = p_sys->p_tref_chap->data.p_tref_generic;
2164 for( i = 0; i < p_chap->i_entry_count; i++ )
2166 if( p_track->i_track_ID == p_chap->i_track_ID[i] )
2168 p_track->b_chapter = true;
2175 if( b_force_enable &&
2176 ( p_track->fmt.i_cat == VIDEO_ES || p_track->fmt.i_cat == AUDIO_ES ) )
2178 msg_Warn( p_demux, "Enabling track[Id 0x%x] (buggy file without enabled track)",
2179 p_track->i_track_ID );
2180 p_track->b_enable = true;
2181 p_track->fmt.i_priority = 0;
2184 p_track->p_es = NULL;
2185 if( TrackCreateES( p_demux,
2186 p_track, p_track->i_chunk,
2187 p_track->b_chapter ? NULL : &p_track->p_es ) )
2189 msg_Err( p_demux, "cannot create es for track[Id 0x%x]",
2190 p_track->i_track_ID );
2193 p_track->b_ok = true;
2197 for( i = 0; i < p_track->i_chunk_count; i++ )
2199 fprintf( stderr, "%-5d sample_count=%d pts=%lld\n",
2200 i, p_track->chunk[i].i_sample_count,
2201 p_track->chunk[i].i_first_dts );
2208 /****************************************************************************
2210 ****************************************************************************
2211 * Destroy a track created by MP4_TrackCreate.
2212 ****************************************************************************/
2213 static void MP4_TrackDestroy( mp4_track_t *p_track )
2215 unsigned int i_chunk;
2217 p_track->b_ok = false;
2218 p_track->b_enable = false;
2219 p_track->b_selected = false;
2221 es_format_Clean( &p_track->fmt );
2223 for( i_chunk = 0; i_chunk < p_track->i_chunk_count; i_chunk++ )
2225 if( p_track->chunk )
2227 FREENULL(p_track->chunk[i_chunk].p_sample_count_dts);
2228 FREENULL(p_track->chunk[i_chunk].p_sample_delta_dts );
2230 FREENULL(p_track->chunk[i_chunk].p_sample_count_pts);
2231 FREENULL(p_track->chunk[i_chunk].p_sample_offset_pts );
2234 FREENULL( p_track->chunk );
2236 if( !p_track->i_sample_size )
2238 FREENULL( p_track->p_sample_size );
2242 static int MP4_TrackSelect( demux_t *p_demux, mp4_track_t *p_track,
2245 if( !p_track->b_ok || p_track->b_chapter )
2247 return VLC_EGENERIC;
2250 if( p_track->b_selected )
2252 msg_Warn( p_demux, "track[Id 0x%x] already selected",
2253 p_track->i_track_ID );
2257 return MP4_TrackSeek( p_demux, p_track, i_start );
2260 static void MP4_TrackUnselect( demux_t *p_demux, mp4_track_t *p_track )
2262 if( !p_track->b_ok || p_track->b_chapter )
2267 if( !p_track->b_selected )
2269 msg_Warn( p_demux, "track[Id 0x%x] already unselected",
2270 p_track->i_track_ID );
2275 es_out_Control( p_demux->out, ES_OUT_SET_ES_STATE,
2276 p_track->p_es, false );
2279 p_track->b_selected = false;
2282 static int MP4_TrackSeek( demux_t *p_demux, mp4_track_t *p_track,
2288 if( !p_track->b_ok || p_track->b_chapter )
2289 return VLC_EGENERIC;
2291 p_track->b_selected = false;
2293 if( TrackTimeToSampleChunk( p_demux, p_track, i_start,
2294 &i_chunk, &i_sample ) )
2296 msg_Warn( p_demux, "cannot select track[Id 0x%x]",
2297 p_track->i_track_ID );
2298 return VLC_EGENERIC;
2301 p_track->b_selected = true;
2303 if( TrackGotoChunkSample( p_demux, p_track, i_chunk, i_sample ) ==
2306 p_track->b_selected = true;
2308 es_out_Control( p_demux->out, ES_OUT_SET_NEXT_DISPLAY_TIME,
2309 p_track->p_es, i_start );
2312 return p_track->b_selected ? VLC_SUCCESS : VLC_EGENERIC;
2317 * 3 types: for audio
2320 #define QT_V0_MAX_SAMPLES 1024
2321 static int MP4_TrackSampleSize( mp4_track_t *p_track )
2324 MP4_Box_data_sample_soun_t *p_soun;
2326 if( p_track->i_sample_size == 0 )
2328 /* most simple case */
2329 return p_track->p_sample_size[p_track->i_sample];
2331 if( p_track->fmt.i_cat != AUDIO_ES )
2333 return p_track->i_sample_size;
2336 p_soun = p_track->p_sample->data.p_sample_soun;
2338 if( p_soun->i_qt_version == 1 )
2340 i_size = p_track->chunk[p_track->i_chunk].i_sample_count /
2341 p_soun->i_sample_per_packet * p_soun->i_bytes_per_frame;
2343 else if( p_track->i_sample_size > 256 )
2345 /* We do that so we don't read too much data
2346 * (in this case we are likely dealing with compressed data) */
2347 i_size = p_track->i_sample_size;
2351 /* Read a bunch of samples at once */
2352 int i_samples = p_track->chunk[p_track->i_chunk].i_sample_count -
2353 ( p_track->i_sample -
2354 p_track->chunk[p_track->i_chunk].i_sample_first );
2356 i_samples = __MIN( QT_V0_MAX_SAMPLES, i_samples );
2357 i_size = i_samples * p_track->i_sample_size;
2360 //fprintf( stderr, "size=%d\n", i_size );
2364 static uint64_t MP4_TrackGetPos( mp4_track_t *p_track )
2366 unsigned int i_sample;
2369 i_pos = p_track->chunk[p_track->i_chunk].i_offset;
2371 if( p_track->i_sample_size )
2373 MP4_Box_data_sample_soun_t *p_soun =
2374 p_track->p_sample->data.p_sample_soun;
2376 if( p_soun->i_qt_version == 0 )
2378 i_pos += ( p_track->i_sample -
2379 p_track->chunk[p_track->i_chunk].i_sample_first ) *
2380 p_track->i_sample_size;
2384 /* we read chunk by chunk */
2390 for( i_sample = p_track->chunk[p_track->i_chunk].i_sample_first;
2391 i_sample < p_track->i_sample; i_sample++ )
2393 i_pos += p_track->p_sample_size[i_sample];
2400 static int MP4_TrackNextSample( demux_t *p_demux, mp4_track_t *p_track )
2402 if( p_track->fmt.i_cat == AUDIO_ES && p_track->i_sample_size != 0 )
2404 MP4_Box_data_sample_soun_t *p_soun;
2406 p_soun = p_track->p_sample->data.p_sample_soun;
2408 if( p_soun->i_qt_version == 1 )
2410 /* chunk by chunk */
2412 p_track->chunk[p_track->i_chunk].i_sample_first +
2413 p_track->chunk[p_track->i_chunk].i_sample_count;
2415 else if( p_track->i_sample_size > 256 )
2417 /* We do that so we don't read too much data
2418 * (in this case we are likely dealing with compressed data) */
2419 p_track->i_sample += 1;
2424 p_track->i_sample += QT_V0_MAX_SAMPLES;
2425 if( p_track->i_sample >
2426 p_track->chunk[p_track->i_chunk].i_sample_first +
2427 p_track->chunk[p_track->i_chunk].i_sample_count )
2430 p_track->chunk[p_track->i_chunk].i_sample_first +
2431 p_track->chunk[p_track->i_chunk].i_sample_count;
2437 p_track->i_sample++;
2440 if( p_track->i_sample >= p_track->i_sample_count )
2441 return VLC_EGENERIC;
2443 /* Have we changed chunk ? */
2444 if( p_track->i_sample >=
2445 p_track->chunk[p_track->i_chunk].i_sample_first +
2446 p_track->chunk[p_track->i_chunk].i_sample_count )
2448 if( TrackGotoChunkSample( p_demux, p_track, p_track->i_chunk + 1,
2449 p_track->i_sample ) )
2451 msg_Warn( p_demux, "track[0x%x] will be disabled "
2452 "(cannot restart decoder)", p_track->i_track_ID );
2453 MP4_TrackUnselect( p_demux, p_track );
2454 return VLC_EGENERIC;
2458 /* Have we changed elst */
2459 if( p_track->p_elst && p_track->p_elst->data.p_elst->i_entry_count > 0 )
2461 demux_sys_t *p_sys = p_demux->p_sys;
2462 MP4_Box_data_elst_t *elst = p_track->p_elst->data.p_elst;
2463 uint64_t i_mvt = MP4_TrackGetDTS( p_demux, p_track ) *
2464 p_sys->i_timescale / (int64_t)1000000;
2466 if( (unsigned int)p_track->i_elst < elst->i_entry_count &&
2467 i_mvt >= p_track->i_elst_time +
2468 elst->i_segment_duration[p_track->i_elst] )
2470 MP4_TrackSetELST( p_demux, p_track,
2471 MP4_TrackGetDTS( p_demux, p_track ) );
2478 static void MP4_TrackSetELST( demux_t *p_demux, mp4_track_t *tk,
2481 demux_sys_t *p_sys = p_demux->p_sys;
2482 int i_elst_last = tk->i_elst;
2484 /* handle elst (find the correct one) */
2486 tk->i_elst_time = 0;
2487 if( tk->p_elst && tk->p_elst->data.p_elst->i_entry_count > 0 )
2489 MP4_Box_data_elst_t *elst = tk->p_elst->data.p_elst;
2490 int64_t i_mvt= i_time * p_sys->i_timescale / (int64_t)1000000;
2492 for( tk->i_elst = 0; (unsigned int)tk->i_elst < elst->i_entry_count; tk->i_elst++ )
2494 mtime_t i_dur = elst->i_segment_duration[tk->i_elst];
2496 if( tk->i_elst_time <= i_mvt && i_mvt < tk->i_elst_time + i_dur )
2500 tk->i_elst_time += i_dur;
2503 if( (unsigned int)tk->i_elst >= elst->i_entry_count )
2505 /* msg_Dbg( p_demux, "invalid number of entry in elst" ); */
2506 tk->i_elst = elst->i_entry_count - 1;
2507 tk->i_elst_time -= elst->i_segment_duration[tk->i_elst];
2510 if( elst->i_media_time[tk->i_elst] < 0 )
2513 tk->i_elst_time += elst->i_segment_duration[tk->i_elst];
2516 if( i_elst_last != tk->i_elst )
2518 msg_Warn( p_demux, "elst old=%d new=%d", i_elst_last, tk->i_elst );
2523 static const char *MP4_ConvertMacCode( uint16_t i_code )
2525 static const struct { const char *psz_iso639_1; uint16_t i_code; } p_cvt[] = {
2526 { "en", 0 }, { "fr", 1 }, { "de", 2 }, { "it", 3 }, { "nl", 4 },
2527 { "sv", 5 }, { "es", 6 }, { "da", 7 }, { "pt", 8 }, { "no", 9 },
2528 { "he", 10 }, { "ja", 11 }, { "ar", 12 }, { "fi", 13 }, { "el", 14 },
2529 { "is", 15 }, { "mt", 16 }, { "tr", 17 }, { "hr", 18 }, { "zh", 19 },
2530 { "ur", 20 }, { "hi", 21 }, { "th", 22 }, { "ko", 23 }, { "lt", 24 },
2531 { "pl", 25 }, { "hu", 26 }, { "et", 27 }, { "lv", 28 }, //{ "??", 29 },
2532 { "fo", 30 }, { "fa", 31 }, { "ru", 32 }, { "zh", 33 }, { "nl", 34 },
2533 { "ga", 35 }, { "sq", 36 }, { "ro", 37 }, { "cs", 38 }, { "sk", 39 },
2534 { "sl", 40 }, { "yi", 41 }, { "sr", 42 }, { "mk", 43 }, { "bg", 44 },
2535 { "uk", 45 }, { "be", 46 }, { "uz", 47 }, { "az", 48 }, { "kk", 48 },
2536 { "az", 50 }, { "hy", 51 }, { "ka", 52 }, { "mo", 53 }, { "ky", 54 },
2537 { "tg", 55 }, { "tk", 56 }, { "mn", 57 }, { "mn", 58 }, { "ps", 59 },
2538 { "ku", 60 }, { "ks", 61 }, { "sd", 62 }, { "bo", 63 }, { "ne", 64 },
2539 { "sa", 65 }, { "mr", 66 }, { "bn", 67 }, { "as", 68 }, { "gu", 69 },
2540 { "pa", 70 }, { "or", 71 }, { "ml", 72 }, { "kn", 73 }, { "ta", 74 },
2541 { "te", 75 }, { "si", 76 }, { "my", 77 }, { "km", 78 }, { "lo", 79 },
2542 { "vi", 80 }, { "id", 81 }, { "tl", 82 }, { "ms", 83 }, { "ms", 84 },
2543 { "am", 85 }, { "ti", 86 }, { "om", 87 }, { "so", 88 }, { "sw", 89 },
2544 { "rw", 90 }, { "rn", 91 }, { "ny", 92 }, { "mg", 93 }, { "eo", 94 },
2546 { "cy", 128 }, { "eu", 129 },
2547 { "ca", 130 }, { "la", 131 }, { "qu", 132 }, { "gn", 133 }, { "ay", 134 },
2548 { "tt", 135 }, { "ug", 136 }, { "dz", 137 }, { "jv", 138 }, { "su", 139 },
2549 { "gl", 140 }, { "af", 141 }, { "br", 142 }, { "iu", 143 }, { "gd", 144 },
2550 { "gv", 145 }, { "ga", 146 }, { "to", 147 }, { "el", 148 },
2555 for( i = 0; p_cvt[i].psz_iso639_1 != NULL; i++ )
2557 if( p_cvt[i].i_code == i_code )
2558 return p_cvt[i].psz_iso639_1;