1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 VideoLAN
5 * $Id: avi.c,v 1.10 2003/03/11 19:02:30 fenrir Exp $
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
27 /* TODO: add OpenDML write support */
30 #include <sys/types.h>
37 #include <vlc/input.h>
47 #define AVIF_HASINDEX 0x00000010 // Index at end of file?
48 #define AVIF_MUSTUSEINDEX 0x00000020
49 #define AVIF_ISINTERLEAVED 0x00000100
50 #define AVIF_TRUSTCKTYPE 0x00000800 // Use CKType to find key frames?
51 #define AVIF_WASCAPTUREFILE 0x00010000
52 #define AVIF_COPYRIGHTED 0x00020000
55 #define AVIIF_LIST 0x00000001L /* chunk is a 'LIST' */
56 #define AVIIF_KEYFRAME 0x00000010L /* this frame is a key frame.*/
57 #define AVIIF_NOTIME 0x00000100L /* this frame doesn't take any time */
58 #define AVIIF_COMPUSE 0x0FFF0000L /* these bits are for compressor use */
60 /*****************************************************************************
62 *****************************************************************************/
63 static int Open ( vlc_object_t * );
64 static void Close ( vlc_object_t * );
66 static int Capability(sout_mux_t *, int , void *, void * );
67 static int AddStream( sout_mux_t *, sout_input_t * );
68 static int DelStream( sout_mux_t *, sout_input_t * );
69 static int Mux ( sout_mux_t * );
71 static sout_buffer_t *avi_HeaderCreateRIFF( sout_mux_t * );
72 static sout_buffer_t *avi_HeaderCreateidx1( sout_mux_t * );
74 static void SetFCC( uint8_t *p, char *fcc )
82 static void SetDWLE( uint8_t *p, uint32_t i_dw )
84 p[3] = ( i_dw >> 24 )&0xff;
85 p[2] = ( i_dw >> 16 )&0xff;
86 p[1] = ( i_dw >> 8 )&0xff;
90 /*****************************************************************************
92 *****************************************************************************/
94 set_description( _("Avi muxer") );
95 set_capability( "sout mux", 5 );
96 add_shortcut( "avi" );
97 set_callbacks( Open, Close );
101 #define HDR_SIZE 10240
103 typedef struct avi_stream_s
109 mtime_t i_duration; // in µs
111 int i_frames; // total frame count
112 int64_t i_totalsize; // total stream size
117 BITMAPINFOHEADER *p_bih;
122 typedef struct avi_idx1_entry_s
131 typedef struct avi_idx1_s
133 unsigned int i_entry_count;
134 unsigned int i_entry_max;
136 avi_idx1_entry_t *entry;
139 struct sout_mux_sys_t
145 avi_stream_t stream[100];
152 /*****************************************************************************
154 *****************************************************************************/
155 static int Open( vlc_object_t *p_this )
157 sout_mux_t *p_mux = (sout_mux_t*)p_this;
158 sout_mux_sys_t *p_sys = p_mux->p_sys;
159 sout_buffer_t *p_hdr;
161 p_sys = malloc( sizeof( sout_mux_sys_t ) );
162 p_sys->i_streams = 0;
163 p_sys->i_stream_video = -1;
164 p_sys->i_movi_size = 0;
166 p_sys->idx1.i_entry_count = 0;
167 p_sys->idx1.i_entry_max = 10000;
168 p_sys->idx1.entry = calloc( p_sys->idx1.i_entry_max, sizeof( avi_idx1_entry_t ) );
170 msg_Info( p_mux, "Open" );
172 p_mux->pf_capacity = Capability;
173 p_mux->pf_addstream = AddStream;
174 p_mux->pf_delstream = DelStream;
176 p_mux->p_sys = p_sys;
177 p_mux->i_preheader = 8; // (fourcc,length) header
179 /* room to add header at the end */
180 p_hdr = sout_BufferNew( p_mux->p_sout, HDR_SIZE );
181 memset( p_hdr->p_buffer, 0, HDR_SIZE );
182 sout_AccessOutWrite( p_mux->p_access, p_hdr );
187 /*****************************************************************************
189 *****************************************************************************/
191 static void Close( vlc_object_t * p_this )
193 sout_mux_t *p_mux = (sout_mux_t*)p_this;
194 sout_mux_sys_t *p_sys = p_mux->p_sys;
196 sout_buffer_t *p_hdr, *p_idx1;
199 msg_Info( p_mux, "Close" );
201 /* first create idx1 chunk (write at the end of the stream */
202 p_idx1 = avi_HeaderCreateidx1( p_mux );
203 p_sys->i_idx1_size = p_idx1->i_size;
204 sout_AccessOutWrite( p_mux->p_access, p_idx1 );
206 /* calculate some value for headers creations */
207 for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
209 avi_stream_t *p_stream;
211 p_stream = &p_sys->stream[i_stream];
213 p_stream->f_fps = 25;
214 if( p_stream->i_duration > 0 )
216 p_stream->f_fps = (float)p_stream->i_frames /
217 ( (float)p_stream->i_duration /
220 p_stream->i_bitrate = 128 * 1024;
221 if( p_stream->i_duration > 0 )
223 p_stream->i_bitrate =
224 8 * (uint64_t)1000000 *
225 (uint64_t)p_stream->i_totalsize /
226 (uint64_t)p_stream->i_duration;
228 msg_Err( p_mux, "stream[%d] duration:%lld totalsize:%lld frames:%d fps:%f kb/s:%d",
230 p_stream->i_duration/1000000, p_stream->i_totalsize,
232 p_stream->f_fps, p_stream->i_bitrate/1024 );
235 p_hdr = avi_HeaderCreateRIFF( p_mux );
236 sout_AccessOutSeek( p_mux->p_access, 0 );
237 sout_AccessOutWrite( p_mux->p_access, p_hdr );
240 static int Capability( sout_mux_t *p_mux, int i_query, void *p_args, void *p_answer )
244 case SOUT_MUX_CAP_GET_ADD_STREAM_ANY_TIME:
245 *(vlc_bool_t*)p_answer = VLC_TRUE;
246 return( SOUT_MUX_CAP_ERR_OK );
248 return( SOUT_MUX_CAP_ERR_UNIMPLEMENTED );
252 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
254 sout_mux_sys_t *p_sys = p_mux->p_sys;
255 avi_stream_t *p_stream;
257 if( p_sys->i_streams >= 100 )
259 msg_Err( p_mux, "too many streams" );
262 if( p_input->input_format.p_format == NULL )
264 msg_Err( p_mux, "stream descriptor missing" );
268 msg_Dbg( p_mux, "adding input" );
269 p_input->p_sys = malloc( sizeof( int ) );
271 *((int*)p_input->p_sys) = p_sys->i_streams;
272 p_stream = &p_sys->stream[p_sys->i_streams];
274 switch( p_input->input_format.i_cat )
279 (WAVEFORMATEX*)p_input->input_format.p_format;
281 p_stream->i_cat = AUDIO_ES;
282 p_stream->fcc[0] = '0' + p_sys->i_streams / 10;
283 p_stream->fcc[1] = '0' + p_sys->i_streams % 10;
284 p_stream->fcc[2] = 'w';
285 p_stream->fcc[3] = 'b';
287 p_stream->p_bih = NULL;
288 p_stream->p_wf = malloc( sizeof( WAVEFORMATEX ) + p_wf->cbSize );
289 memcpy( p_stream->p_wf,
291 sizeof( WAVEFORMATEX ) + p_wf->cbSize);
296 BITMAPINFOHEADER *p_bih =
297 (BITMAPINFOHEADER*)p_input->input_format.p_format;;
299 p_stream->i_cat = VIDEO_ES;
300 p_stream->fcc[0] = '0' + p_sys->i_streams / 10;
301 p_stream->fcc[1] = '0' + p_sys->i_streams % 10;
302 p_stream->fcc[2] = 'd';
303 p_stream->fcc[3] = 'c';
304 if( p_sys->i_stream_video < 0 )
306 p_sys->i_stream_video = p_sys->i_streams;
308 p_stream->p_wf = NULL;
309 p_stream->p_bih = malloc( p_bih->biSize );
310 memcpy( p_stream->p_bih,
318 p_stream->i_totalsize = 0;
319 p_stream->i_frames = 0;
320 p_stream->i_duration = 0;
326 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
329 msg_Dbg( p_mux, "removing input" );
331 free( p_input->p_sys ); p_input->p_sys = NULL;
336 static int Mux ( sout_mux_t *p_mux )
338 sout_mux_sys_t *p_sys = p_mux->p_sys;
339 avi_stream_t *p_stream;
343 for( i = 0; i < p_mux->i_nb_inputs; i++ )
348 i_stream = *((int*)p_mux->pp_inputs[i]->p_sys );
349 p_stream = &p_sys->stream[i_stream];
351 p_fifo = p_mux->pp_inputs[i]->p_fifo;
352 i_count = p_fifo->i_depth;
355 avi_idx1_entry_t *p_idx;
356 sout_buffer_t *p_data;
358 p_data = sout_FifoGet( p_fifo );
360 p_stream->i_frames++;
361 p_stream->i_duration += p_data->i_length;
362 p_stream->i_totalsize += p_data->i_size;
364 /* add idx1 entry for this frame */
365 p_idx = &p_sys->idx1.entry[p_sys->idx1.i_entry_count];
366 memcpy( p_idx->fcc, p_stream->fcc, 4 );
367 p_idx->i_flags = AVIIF_KEYFRAME;
368 p_idx->i_pos = p_sys->i_movi_size + 4;
369 p_idx->i_length= p_data->i_size;
370 p_sys->idx1.i_entry_count++;
371 if( p_sys->idx1.i_entry_count >= p_sys->idx1.i_entry_max )
373 p_sys->idx1.i_entry_max += 10000;
374 p_sys->idx1.entry = realloc( p_sys->idx1.entry,
375 p_sys->idx1.i_entry_max * sizeof( avi_idx1_entry_t ) );
379 if( sout_BufferReallocFromPreHeader( p_mux->p_sout, p_data, 8 ) )
381 /* there isn't enough data in preheader */
382 sout_buffer_t *p_hdr;
384 p_hdr = sout_BufferNew( p_mux->p_sout, 8 );
385 SetFCC( p_hdr->p_buffer, p_stream->fcc );
386 SetDWLE( p_hdr->p_buffer + 4, p_data->i_size );
388 sout_AccessOutWrite( p_mux->p_access, p_hdr );
389 p_sys->i_movi_size += p_hdr->i_size;
394 SetFCC( p_data->p_buffer, p_stream->fcc );
395 SetDWLE( p_data->p_buffer + 4, p_data->i_size - 8 );
398 if( p_data->i_size & 0x01 )
400 sout_BufferRealloc( p_mux->p_sout, p_data, p_data->i_size + 1 );
404 sout_AccessOutWrite( p_mux->p_access, p_data );
405 p_sys->i_movi_size += p_data->i_size;
414 /****************************************************************************/
415 /****************************************************************************/
416 /****************************************************************************/
417 /****************************************************************************/
419 typedef struct buffer_out_s
427 static void bo_Init( buffer_out_t *p_bo, int i_size, uint8_t *p_buffer )
429 p_bo->i_buffer_size = i_size;
431 p_bo->p_buffer = p_buffer;
433 static void bo_AddByte( buffer_out_t *p_bo, uint8_t i )
435 if( p_bo->i_buffer < p_bo->i_buffer_size )
437 p_bo->p_buffer[p_bo->i_buffer] = i;
441 static void bo_AddWordLE( buffer_out_t *p_bo, uint16_t i )
443 bo_AddByte( p_bo, i &0xff );
444 bo_AddByte( p_bo, ( ( i >> 8) &0xff ) );
446 static void bo_AddWordBE( buffer_out_t *p_bo, uint16_t i )
448 bo_AddByte( p_bo, ( ( i >> 8) &0xff ) );
449 bo_AddByte( p_bo, i &0xff );
451 static void bo_AddDWordLE( buffer_out_t *p_bo, uint32_t i )
453 bo_AddWordLE( p_bo, i &0xffff );
454 bo_AddWordLE( p_bo, ( ( i >> 16) &0xffff ) );
456 static void bo_AddDWordBE( buffer_out_t *p_bo, uint32_t i )
458 bo_AddWordBE( p_bo, ( ( i >> 16) &0xffff ) );
459 bo_AddWordBE( p_bo, i &0xffff );
462 static void bo_AddLWordLE( buffer_out_t *p_bo, uint64_t i )
464 bo_AddDWordLE( p_bo, i &0xffffffff );
465 bo_AddDWordLE( p_bo, ( ( i >> 32) &0xffffffff ) );
467 static void bo_AddLWordBE( buffer_out_t *p_bo, uint64_t i )
469 bo_AddDWordBE( p_bo, ( ( i >> 32) &0xffffffff ) );
470 bo_AddDWordBE( p_bo, i &0xffffffff );
474 static void bo_AddFCC( buffer_out_t *p_bo, char *fcc )
476 bo_AddByte( p_bo, fcc[0] );
477 bo_AddByte( p_bo, fcc[1] );
478 bo_AddByte( p_bo, fcc[2] );
479 bo_AddByte( p_bo, fcc[3] );
482 static void bo_AddMem( buffer_out_t *p_bo, int i_size, uint8_t *p_mem )
486 for( i = 0; i < i_size; i++ )
488 bo_AddByte( p_bo, p_mem[i] );
492 /****************************************************************************
493 ****************************************************************************
495 ** avi header generation
497 ****************************************************************************
498 ****************************************************************************/
499 #define AVI_BOX_ENTER( fcc ) \
500 buffer_out_t _bo_sav_; \
501 bo_AddFCC( p_bo, fcc ); \
503 bo_AddDWordLE( p_bo, 0 )
505 #define AVI_BOX_ENTER_LIST( fcc ) \
506 AVI_BOX_ENTER( "LIST" ); \
507 bo_AddFCC( p_bo, fcc )
509 #define AVI_BOX_EXIT( i_err ) \
510 if( p_bo->i_buffer&0x01 ) bo_AddByte( p_bo, 0 ); \
511 bo_AddDWordLE( &_bo_sav_, p_bo->i_buffer - _bo_sav_.i_buffer - 4 ); \
514 static int avi_HeaderAdd_avih( sout_mux_t *p_mux,
517 sout_mux_sys_t *p_sys = p_mux->p_sys;
518 avi_stream_t *p_video = NULL;
520 uint32_t i_microsecperframe;
521 int i_maxbytespersec;
523 AVI_BOX_ENTER( "avih" );
525 if( p_sys->i_stream_video >= 0 )
527 p_video = &p_sys->stream[p_sys->i_stream_video];
528 if( p_video->i_frames <= 0 )
537 (uint32_t)( (float)1000000 /
538 (float)p_sys->stream[p_sys->i_stream_video].f_fps );
539 i_totalframes = p_sys->stream[p_sys->i_stream_video].i_frames;
543 msg_Warn( p_mux, "avi file without audio video track isn't a good idea..." );
544 i_microsecperframe = 0;
548 for( i_stream = 0,i_maxbytespersec = 0; i_stream < p_sys->i_streams; i_stream++ )
550 if( p_sys->stream[p_sys->i_stream_video].i_duration > 0 )
553 p_sys->stream[p_sys->i_stream_video].i_totalsize /
554 p_sys->stream[p_sys->i_stream_video].i_duration;
558 bo_AddDWordLE( p_bo, i_microsecperframe );
559 bo_AddDWordLE( p_bo, i_maxbytespersec );
560 bo_AddDWordLE( p_bo, 0 ); /* padding */
561 bo_AddDWordLE( p_bo, AVIF_TRUSTCKTYPE |
563 AVIF_ISINTERLEAVED ); /* flags */
564 bo_AddDWordLE( p_bo, i_totalframes );
565 bo_AddDWordLE( p_bo, 0 ); /* initial frame */
566 bo_AddDWordLE( p_bo, p_sys->i_streams ); /* streams count */
567 bo_AddDWordLE( p_bo, 1024 * 1024 ); /* suggested buffer size */
570 bo_AddDWordLE( p_bo, p_video->p_bih->biWidth );
571 bo_AddDWordLE( p_bo, p_video->p_bih->biHeight );
575 bo_AddDWordLE( p_bo, 0 );
576 bo_AddDWordLE( p_bo, 0 );
578 bo_AddDWordLE( p_bo, 0 ); /* ???? */
579 bo_AddDWordLE( p_bo, 0 ); /* ???? */
580 bo_AddDWordLE( p_bo, 0 ); /* ???? */
581 bo_AddDWordLE( p_bo, 0 ); /* ???? */
585 static int avi_HeaderAdd_strh( sout_mux_t *p_mux,
587 avi_stream_t *p_stream )
589 AVI_BOX_ENTER( "strh" );
591 switch( p_stream->i_cat )
595 bo_AddFCC( p_bo, "vids" );
596 bo_AddDWordBE( p_bo, p_stream->p_bih->biCompression );
597 bo_AddDWordLE( p_bo, 0 ); /* flags */
598 bo_AddWordLE( p_bo, 0 ); /* priority */
599 bo_AddWordLE( p_bo, 0 ); /* langage */
600 bo_AddDWordLE( p_bo, 0 ); /* initial frame */
601 bo_AddDWordLE( p_bo, 1000 );/* scale */
602 bo_AddDWordLE( p_bo, (uint32_t)( 1000 * p_stream->f_fps ));
603 bo_AddDWordLE( p_bo, 0 ); /* start */
604 bo_AddDWordLE( p_bo, p_stream->i_frames );
605 bo_AddDWordLE( p_bo, 1024 * 1024 );
606 bo_AddDWordLE( p_bo, -1 ); /* quality */
607 bo_AddDWordLE( p_bo, 0 ); /* samplesize */
608 bo_AddWordLE( p_bo, 0 ); /* ??? */
609 bo_AddWordLE( p_bo, 0 ); /* ??? */
610 bo_AddWordLE( p_bo, p_stream->p_bih->biWidth );
611 bo_AddWordLE( p_bo, p_stream->p_bih->biHeight );
616 int i_rate, i_scale, i_samplesize;
618 i_samplesize = p_stream->p_wf->nBlockAlign;
619 if( i_samplesize > 1 )
621 i_scale = i_samplesize;
622 i_rate = i_scale * p_stream->i_bitrate / 8;
628 i_rate = 1000 * p_stream->i_bitrate / 8;
630 bo_AddFCC( p_bo, "auds" );
631 bo_AddDWordLE( p_bo, 0 ); /* tag */
632 bo_AddDWordLE( p_bo, 0 ); /* flags */
633 bo_AddWordLE( p_bo, 0 ); /* priority */
634 bo_AddWordLE( p_bo, 0 ); /* langage */
635 bo_AddDWordLE( p_bo, 0 ); /* initial frame */
636 bo_AddDWordLE( p_bo, i_scale );/* scale */
637 bo_AddDWordLE( p_bo, i_rate );
638 bo_AddDWordLE( p_bo, 0 ); /* start */
639 bo_AddDWordLE( p_bo, p_stream->i_frames );
640 bo_AddDWordLE( p_bo, 10 * 1024 );
641 bo_AddDWordLE( p_bo, -1 ); /* quality */
642 bo_AddDWordLE( p_bo, i_samplesize );
643 bo_AddWordLE( p_bo, 0 ); /* ??? */
644 bo_AddWordLE( p_bo, 0 ); /* ??? */
645 bo_AddWordLE( p_bo, 0 );
646 bo_AddWordLE( p_bo, 0 );
654 static int avi_HeaderAdd_strf( sout_mux_t *p_mux,
656 avi_stream_t *p_stream )
658 AVI_BOX_ENTER( "strf" );
660 switch( p_stream->i_cat )
663 bo_AddWordLE( p_bo, p_stream->p_wf->wFormatTag );
664 bo_AddWordLE( p_bo, p_stream->p_wf->nChannels );
665 bo_AddDWordLE( p_bo, p_stream->p_wf->nSamplesPerSec );
666 bo_AddDWordLE( p_bo, p_stream->p_wf->nAvgBytesPerSec );
667 bo_AddWordLE( p_bo, p_stream->p_wf->nBlockAlign );
668 bo_AddWordLE( p_bo, p_stream->p_wf->wBitsPerSample );
669 bo_AddWordLE( p_bo, p_stream->p_wf->cbSize );
670 bo_AddMem( p_bo, p_stream->p_wf->cbSize, (uint8_t*)&p_stream->p_wf[1] );
673 bo_AddDWordLE( p_bo, p_stream->p_bih->biSize );
674 bo_AddDWordLE( p_bo, p_stream->p_bih->biWidth );
675 bo_AddDWordLE( p_bo, p_stream->p_bih->biHeight );
676 bo_AddWordLE( p_bo, p_stream->p_bih->biPlanes );
677 bo_AddWordLE( p_bo, p_stream->p_bih->biBitCount );
678 if( VLC_FOURCC( 0, 0, 0, 1 ) == 0x00000001 )
680 bo_AddDWordBE( p_bo, p_stream->p_bih->biCompression );
684 bo_AddDWordLE( p_bo, p_stream->p_bih->biCompression );
686 bo_AddDWordLE( p_bo, p_stream->p_bih->biSizeImage );
687 bo_AddDWordLE( p_bo, p_stream->p_bih->biXPelsPerMeter );
688 bo_AddDWordLE( p_bo, p_stream->p_bih->biYPelsPerMeter );
689 bo_AddDWordLE( p_bo, p_stream->p_bih->biClrUsed );
690 bo_AddDWordLE( p_bo, p_stream->p_bih->biClrImportant );
692 p_stream->p_bih->biSize - sizeof( BITMAPINFOHEADER ),
693 (uint8_t*)&p_stream->p_bih[1] );
700 static int avi_HeaderAdd_strl( sout_mux_t *p_mux,
702 avi_stream_t *p_stream )
704 AVI_BOX_ENTER_LIST( "strl" );
706 avi_HeaderAdd_strh( p_mux, p_bo, p_stream );
707 avi_HeaderAdd_strf( p_mux, p_bo, p_stream );
712 static sout_buffer_t *avi_HeaderCreateRIFF( sout_mux_t *p_mux )
714 sout_mux_sys_t *p_sys = p_mux->p_sys;
715 sout_buffer_t *p_hdr;
717 int i_maxbytespersec;
721 p_hdr = sout_BufferNew( p_mux->p_sout, HDR_SIZE );
722 memset( p_hdr->p_buffer, 0, HDR_SIZE );
724 bo_Init( &bo, HDR_SIZE, p_hdr->p_buffer );
726 bo_AddFCC( &bo, "RIFF" );
727 bo_AddDWordLE( &bo, p_sys->i_movi_size + HDR_SIZE - 8 + p_sys->i_idx1_size );
728 bo_AddFCC( &bo, "AVI " );
730 bo_AddFCC( &bo, "LIST" );
731 bo_AddDWordLE( &bo, HDR_SIZE - 8);
732 bo_AddFCC( &bo, "hdrl" );
734 avi_HeaderAdd_avih( p_mux, &bo );
735 for( i_stream = 0,i_maxbytespersec = 0; i_stream < p_sys->i_streams; i_stream++ )
737 avi_HeaderAdd_strl( p_mux, &bo, &p_sys->stream[i_stream] );
740 i_junk = HDR_SIZE - bo.i_buffer - 8 - 12;
741 bo_AddFCC( &bo, "JUNK" );
742 bo_AddDWordLE( &bo, i_junk );
744 bo.i_buffer += i_junk;
745 bo_AddFCC( &bo, "LIST" );
746 bo_AddDWordLE( &bo, p_sys->i_movi_size + 4 );
747 bo_AddFCC( &bo, "movi" );
752 static sout_buffer_t * avi_HeaderCreateidx1( sout_mux_t *p_mux )
754 sout_mux_sys_t *p_sys = p_mux->p_sys;
755 sout_buffer_t *p_idx1;
756 uint32_t i_idx1_size;
760 i_idx1_size = 16 * p_sys->idx1.i_entry_count;
762 p_idx1 = sout_BufferNew( p_mux->p_sout, i_idx1_size + 8 );
763 memset( p_idx1->p_buffer, 0, i_idx1_size );
765 bo_Init( &bo, i_idx1_size, p_idx1->p_buffer );
766 bo_AddFCC( &bo, "idx1" );
767 bo_AddDWordLE( &bo, i_idx1_size );
769 for( i = 0; i < p_sys->idx1.i_entry_count; i++ )
771 bo_AddFCC( &bo, p_sys->idx1.entry[i].fcc );
772 bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_flags );
773 bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_pos );
774 bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_length );