1 /*****************************************************************************
3 *****************************************************************************
4 * Copyright (C) 2001, 2002 VideoLAN
5 * $Id: avi.c,v 1.15 2003/08/17 18:44:26 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 */
32 #include <vlc/input.h>
37 /*****************************************************************************
39 *****************************************************************************/
40 static int Open ( vlc_object_t * );
41 static void Close ( vlc_object_t * );
44 set_description( _("Avi muxer") );
45 set_capability( "sout mux", 5 );
46 add_shortcut( "avi" );
47 set_callbacks( Open, Close );
51 /*****************************************************************************
53 *****************************************************************************/
54 static int Capability(sout_mux_t *, int , void *, void * );
55 static int AddStream( sout_mux_t *, sout_input_t * );
56 static int DelStream( sout_mux_t *, sout_input_t * );
57 static int Mux ( sout_mux_t * );
59 typedef struct avi_stream_s
65 mtime_t i_duration; // in µs
67 int i_frames; // total frame count
68 int64_t i_totalsize; // total stream size
73 BITMAPINFOHEADER *p_bih;
78 typedef struct avi_idx1_entry_s
87 typedef struct avi_idx1_s
89 unsigned int i_entry_count;
90 unsigned int i_entry_max;
92 avi_idx1_entry_t *entry;
97 vlc_bool_t b_write_header;
103 avi_stream_t stream[100];
111 #define HDR_SIZE 10240
114 #define AVIF_HASINDEX 0x00000010 // Index at end of file?
115 #define AVIF_ISINTERLEAVED 0x00000100
116 #define AVIF_TRUSTCKTYPE 0x00000800 // Use CKType to find key frames?
118 /* Flags for index */
119 #define AVIIF_KEYFRAME 0x00000010L /* this frame is a key frame.*/
122 static sout_buffer_t *avi_HeaderCreateRIFF( sout_mux_t * );
123 static sout_buffer_t *avi_HeaderCreateidx1( sout_mux_t * );
125 static void SetFCC( uint8_t *p, char *fcc )
130 static void SetDWLE( uint8_t *p, uint32_t i_dw )
132 p[3] = ( i_dw >> 24 )&0xff;
133 p[2] = ( i_dw >> 16 )&0xff;
134 p[1] = ( i_dw >> 8 )&0xff;
135 p[0] = ( i_dw )&0xff;
139 /*****************************************************************************
141 *****************************************************************************/
142 static int Open( vlc_object_t *p_this )
144 sout_mux_t *p_mux = (sout_mux_t*)p_this;
145 sout_mux_sys_t *p_sys = p_mux->p_sys;
147 msg_Dbg( p_mux, "AVI muxer opened" );
149 p_sys = malloc( sizeof( sout_mux_sys_t ) );
150 p_sys->i_streams = 0;
151 p_sys->i_stream_video = -1;
152 p_sys->i_movi_size = 0;
154 p_sys->idx1.i_entry_count = 0;
155 p_sys->idx1.i_entry_max = 10000;
156 p_sys->idx1.entry = calloc( p_sys->idx1.i_entry_max,
157 sizeof( avi_idx1_entry_t ) );
158 p_sys->b_write_header = VLC_TRUE;
161 p_mux->pf_capacity = Capability;
162 p_mux->pf_addstream = AddStream;
163 p_mux->pf_delstream = DelStream;
165 p_mux->p_sys = p_sys;
166 p_mux->i_preheader = 8; /* (fourcc,length) header */
171 /*****************************************************************************
173 *****************************************************************************/
174 static void Close( vlc_object_t * p_this )
176 sout_mux_t *p_mux = (sout_mux_t*)p_this;
177 sout_mux_sys_t *p_sys = p_mux->p_sys;
179 sout_buffer_t *p_hdr, *p_idx1;
182 msg_Dbg( p_mux, "AVI muxer closed" );
184 /* first create idx1 chunk (write at the end of the stream */
185 p_idx1 = avi_HeaderCreateidx1( p_mux );
186 p_sys->i_idx1_size = p_idx1->i_size;
187 sout_AccessOutWrite( p_mux->p_access, p_idx1 );
189 /* calculate some value for headers creations */
190 for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
192 avi_stream_t *p_stream;
194 p_stream = &p_sys->stream[i_stream];
196 p_stream->f_fps = 25;
197 if( p_stream->i_duration > 0 )
199 p_stream->f_fps = (float)p_stream->i_frames /
200 ( (float)p_stream->i_duration /
203 p_stream->i_bitrate = 128 * 1024;
204 if( p_stream->i_duration > 0 )
206 p_stream->i_bitrate =
207 8 * (uint64_t)1000000 *
208 (uint64_t)p_stream->i_totalsize /
209 (uint64_t)p_stream->i_duration;
211 msg_Info( p_mux, "stream[%d] duration:"I64Fd" totalsize:"I64Fd
212 " frames:%d fps:%f kb/s:%d",
214 (int64_t)p_stream->i_duration / (int64_t)1000000,
215 p_stream->i_totalsize,
217 p_stream->f_fps, p_stream->i_bitrate/1024 );
220 p_hdr = avi_HeaderCreateRIFF( p_mux );
221 sout_AccessOutSeek( p_mux->p_access, 0 );
222 sout_AccessOutWrite( p_mux->p_access, p_hdr );
225 static int Capability( sout_mux_t *p_mux, int i_query,
226 void *p_args, void *p_answer )
230 case SOUT_MUX_CAP_GET_ADD_STREAM_ANY_TIME:
231 *(vlc_bool_t*)p_answer = VLC_FALSE;
232 return( SOUT_MUX_CAP_ERR_OK );
234 return( SOUT_MUX_CAP_ERR_UNIMPLEMENTED );
238 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
240 sout_mux_sys_t *p_sys = p_mux->p_sys;
241 avi_stream_t *p_stream;
243 if( p_sys->i_streams >= 100 )
245 msg_Err( p_mux, "too many streams" );
249 msg_Dbg( p_mux, "adding input" );
250 p_input->p_sys = malloc( sizeof( int ) );
252 *((int*)p_input->p_sys) = p_sys->i_streams;
253 p_stream = &p_sys->stream[p_sys->i_streams];
255 switch( p_input->p_fmt->i_cat )
258 p_stream->i_cat = AUDIO_ES;
259 p_stream->fcc[0] = '0' + p_sys->i_streams / 10;
260 p_stream->fcc[1] = '0' + p_sys->i_streams % 10;
261 p_stream->fcc[2] = 'w';
262 p_stream->fcc[3] = 'b';
264 p_stream->p_bih = NULL;
266 p_stream->p_wf = malloc( sizeof( WAVEFORMATEX ) +
267 p_input->p_fmt->i_extra_data );
268 #define p_wf p_stream->p_wf
269 p_wf->cbSize = p_input->p_fmt->i_extra_data;
270 if( p_wf->cbSize > 0 )
273 p_input->p_fmt->p_extra_data,
274 p_input->p_fmt->i_extra_data );
276 p_wf->nChannels = p_input->p_fmt->i_channels;
277 p_wf->nSamplesPerSec = p_input->p_fmt->i_sample_rate;
278 p_wf->nBlockAlign = p_input->p_fmt->i_block_align;
279 p_wf->nAvgBytesPerSec= p_input->p_fmt->i_bitrate / 8;
280 p_wf->wBitsPerSample = 0;
282 switch( p_input->p_fmt->i_fourcc )
284 case VLC_FOURCC( 'a', '5', '2', ' ' ):
285 p_wf->wFormatTag = WAVE_FORMAT_A52;
287 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
288 p_wf->wFormatTag = WAVE_FORMAT_MPEGLAYER3;
290 case VLC_FOURCC( 'w', 'm', 'a', '1' ):
291 p_wf->wFormatTag = WAVE_FORMAT_WMA1;
293 case VLC_FOURCC( 'w', 'm', 'a', '2' ):
294 p_wf->wFormatTag = WAVE_FORMAT_WMA2;
296 case VLC_FOURCC( 'w', 'm', 'a', '3' ):
297 p_wf->wFormatTag = WAVE_FORMAT_WMA3;
300 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
301 p_wf->wFormatTag = WAVE_FORMAT_PCM;
302 p_wf->nBlockAlign= p_wf->nChannels;
303 p_wf->wBitsPerSample = 8;
305 case VLC_FOURCC( 's', '1', '6', 'l' ):
306 p_wf->wFormatTag = WAVE_FORMAT_PCM;
307 p_wf->nBlockAlign= 2 * p_wf->nChannels;
308 p_wf->wBitsPerSample = 16;
310 case VLC_FOURCC( 's', '2', '4', 'l' ):
311 p_wf->wFormatTag = WAVE_FORMAT_PCM;
312 p_wf->nBlockAlign= 3 * p_wf->nChannels;
313 p_wf->wBitsPerSample = 24;
315 case VLC_FOURCC( 's', '3', '2', 'l' ):
316 p_wf->wFormatTag = WAVE_FORMAT_PCM;
317 p_wf->nBlockAlign= 4 * p_wf->nChannels;
318 p_wf->wBitsPerSample = 32;
326 p_stream->i_cat = VIDEO_ES;
327 p_stream->fcc[0] = '0' + p_sys->i_streams / 10;
328 p_stream->fcc[1] = '0' + p_sys->i_streams % 10;
329 p_stream->fcc[2] = 'd';
330 p_stream->fcc[3] = 'c';
331 if( p_sys->i_stream_video < 0 )
333 p_sys->i_stream_video = p_sys->i_streams;
335 p_stream->p_wf = NULL;
336 p_stream->p_bih = malloc( sizeof( BITMAPINFOHEADER ) +
337 p_input->p_fmt->i_extra_data );
338 #define p_bih p_stream->p_bih
339 p_bih->biSize = sizeof( BITMAPINFOHEADER ) +
340 p_input->p_fmt->i_extra_data;
341 if( p_input->p_fmt->i_extra_data > 0 )
344 p_input->p_fmt->p_extra_data,
345 p_input->p_fmt->i_extra_data );
347 p_bih->biWidth = p_input->p_fmt->i_width;
348 p_bih->biHeight= p_input->p_fmt->i_height;
350 p_bih->biBitCount = 24;
351 p_bih->biSizeImage = 0;
352 p_bih->biXPelsPerMeter = 0;
353 p_bih->biYPelsPerMeter = 0;
354 p_bih->biClrUsed = 0;
355 p_bih->biClrImportant = 0;
356 switch( p_input->p_fmt->i_fourcc )
358 case VLC_FOURCC( 'm', 'p', '4', 'v' ):
359 p_bih->biCompression = VLC_FOURCC( 'X', 'V', 'I', 'D' );
362 p_bih->biCompression = p_input->p_fmt->i_fourcc;
368 return( VLC_EGENERIC );
370 p_stream->i_totalsize = 0;
371 p_stream->i_frames = 0;
372 p_stream->i_duration = 0;
375 p_stream->f_fps = 25;
376 p_stream->i_bitrate = 128 * 1024;
379 return( VLC_SUCCESS );
382 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
385 msg_Dbg( p_mux, "removing input" );
387 free( p_input->p_sys );
391 static int Mux ( sout_mux_t *p_mux )
393 sout_mux_sys_t *p_sys = p_mux->p_sys;
394 avi_stream_t *p_stream;
398 if( p_sys->b_write_header )
400 sout_buffer_t *p_hdr;
402 msg_Dbg( p_mux, "writing header" );
404 p_hdr = avi_HeaderCreateRIFF( p_mux );
405 sout_AccessOutWrite( p_mux->p_access, p_hdr );
407 p_sys->b_write_header = VLC_FALSE;
410 for( i = 0; i < p_mux->i_nb_inputs; i++ )
415 i_stream = *((int*)p_mux->pp_inputs[i]->p_sys );
416 p_stream = &p_sys->stream[i_stream];
418 p_fifo = p_mux->pp_inputs[i]->p_fifo;
419 i_count = p_fifo->i_depth;
422 avi_idx1_entry_t *p_idx;
423 sout_buffer_t *p_data;
425 p_data = sout_FifoGet( p_fifo );
427 p_stream->i_frames++;
428 if( p_data->i_length < 0 )
430 msg_Warn( p_mux, "argg length < 0 l" );
431 sout_BufferDelete( p_mux->p_sout, p_data );
435 p_stream->i_duration += p_data->i_length;
436 p_stream->i_totalsize += p_data->i_size;
438 /* add idx1 entry for this frame */
439 p_idx = &p_sys->idx1.entry[p_sys->idx1.i_entry_count];
440 memcpy( p_idx->fcc, p_stream->fcc, 4 );
441 p_idx->i_flags = AVIIF_KEYFRAME;
442 p_idx->i_pos = p_sys->i_movi_size + 4;
443 p_idx->i_length= p_data->i_size;
444 p_sys->idx1.i_entry_count++;
445 if( p_sys->idx1.i_entry_count >= p_sys->idx1.i_entry_max )
447 p_sys->idx1.i_entry_max += 10000;
448 p_sys->idx1.entry = realloc( p_sys->idx1.entry,
449 p_sys->idx1.i_entry_max * sizeof( avi_idx1_entry_t ) );
453 if( sout_BufferReallocFromPreHeader( p_mux->p_sout, p_data, 8 ) )
455 /* there isn't enough data in preheader */
456 sout_buffer_t *p_hdr;
458 p_hdr = sout_BufferNew( p_mux->p_sout, 8 );
459 SetFCC( p_hdr->p_buffer, p_stream->fcc );
460 SetDWLE( p_hdr->p_buffer + 4, p_data->i_size );
462 sout_AccessOutWrite( p_mux->p_access, p_hdr );
463 p_sys->i_movi_size += p_hdr->i_size;
468 SetFCC( p_data->p_buffer, p_stream->fcc );
469 SetDWLE( p_data->p_buffer + 4, p_data->i_size - 8 );
472 if( p_data->i_size & 0x01 )
474 sout_BufferRealloc( p_mux->p_sout, p_data, p_data->i_size + 1 );
478 p_sys->i_movi_size += p_data->i_size;
479 sout_AccessOutWrite( p_mux->p_access, p_data );
488 /****************************************************************************/
489 /****************************************************************************/
490 /****************************************************************************/
491 /****************************************************************************/
493 typedef struct buffer_out_s
501 static void bo_Init( buffer_out_t *p_bo, int i_size, uint8_t *p_buffer )
503 p_bo->i_buffer_size = i_size;
505 p_bo->p_buffer = p_buffer;
507 static void bo_AddByte( buffer_out_t *p_bo, uint8_t i )
509 if( p_bo->i_buffer < p_bo->i_buffer_size )
511 p_bo->p_buffer[p_bo->i_buffer] = i;
515 static void bo_AddWordLE( buffer_out_t *p_bo, uint16_t i )
517 bo_AddByte( p_bo, i &0xff );
518 bo_AddByte( p_bo, ( ( i >> 8) &0xff ) );
520 static void bo_AddWordBE( buffer_out_t *p_bo, uint16_t i )
522 bo_AddByte( p_bo, ( ( i >> 8) &0xff ) );
523 bo_AddByte( p_bo, i &0xff );
525 static void bo_AddDWordLE( buffer_out_t *p_bo, uint32_t i )
527 bo_AddWordLE( p_bo, i &0xffff );
528 bo_AddWordLE( p_bo, ( ( i >> 16) &0xffff ) );
530 static void bo_AddDWordBE( buffer_out_t *p_bo, uint32_t i )
532 bo_AddWordBE( p_bo, ( ( i >> 16) &0xffff ) );
533 bo_AddWordBE( p_bo, i &0xffff );
536 static void bo_AddLWordLE( buffer_out_t *p_bo, uint64_t i )
538 bo_AddDWordLE( p_bo, i &0xffffffff );
539 bo_AddDWordLE( p_bo, ( ( i >> 32) &0xffffffff ) );
541 static void bo_AddLWordBE( buffer_out_t *p_bo, uint64_t i )
543 bo_AddDWordBE( p_bo, ( ( i >> 32) &0xffffffff ) );
544 bo_AddDWordBE( p_bo, i &0xffffffff );
548 static void bo_AddFCC( buffer_out_t *p_bo, char *fcc )
550 bo_AddByte( p_bo, fcc[0] );
551 bo_AddByte( p_bo, fcc[1] );
552 bo_AddByte( p_bo, fcc[2] );
553 bo_AddByte( p_bo, fcc[3] );
556 static void bo_AddMem( buffer_out_t *p_bo, int i_size, uint8_t *p_mem )
560 for( i = 0; i < i_size; i++ )
562 bo_AddByte( p_bo, p_mem[i] );
566 /****************************************************************************
567 ****************************************************************************
569 ** avi header generation
571 ****************************************************************************
572 ****************************************************************************/
573 #define AVI_BOX_ENTER( fcc ) \
574 buffer_out_t _bo_sav_; \
575 bo_AddFCC( p_bo, fcc ); \
577 bo_AddDWordLE( p_bo, 0 )
579 #define AVI_BOX_ENTER_LIST( fcc ) \
580 AVI_BOX_ENTER( "LIST" ); \
581 bo_AddFCC( p_bo, fcc )
583 #define AVI_BOX_EXIT( i_err ) \
584 if( p_bo->i_buffer&0x01 ) bo_AddByte( p_bo, 0 ); \
585 bo_AddDWordLE( &_bo_sav_, p_bo->i_buffer - _bo_sav_.i_buffer - 4 ); \
588 static int avi_HeaderAdd_avih( sout_mux_t *p_mux,
591 sout_mux_sys_t *p_sys = p_mux->p_sys;
592 avi_stream_t *p_video = NULL;
594 uint32_t i_microsecperframe;
595 int i_maxbytespersec;
597 AVI_BOX_ENTER( "avih" );
599 if( p_sys->i_stream_video >= 0 )
601 p_video = &p_sys->stream[p_sys->i_stream_video];
602 if( p_video->i_frames <= 0 )
611 (uint32_t)( (float)1000000 /
612 (float)p_sys->stream[p_sys->i_stream_video].f_fps );
613 i_totalframes = p_sys->stream[p_sys->i_stream_video].i_frames;
617 msg_Warn( p_mux, "avi file without video track isn't a good idea..." );
618 i_microsecperframe = 0;
622 for( i_stream = 0,i_maxbytespersec = 0; i_stream < p_sys->i_streams; i_stream++ )
624 if( p_sys->stream[i_stream].i_duration > 0 )
627 p_sys->stream[p_sys->i_stream_video].i_totalsize /
628 p_sys->stream[p_sys->i_stream_video].i_duration;
632 bo_AddDWordLE( p_bo, i_microsecperframe );
633 bo_AddDWordLE( p_bo, i_maxbytespersec );
634 bo_AddDWordLE( p_bo, 0 ); /* padding */
635 bo_AddDWordLE( p_bo, AVIF_TRUSTCKTYPE |
637 AVIF_ISINTERLEAVED ); /* flags */
638 bo_AddDWordLE( p_bo, i_totalframes );
639 bo_AddDWordLE( p_bo, 0 ); /* initial frame */
640 bo_AddDWordLE( p_bo, p_sys->i_streams ); /* streams count */
641 bo_AddDWordLE( p_bo, 1024 * 1024 ); /* suggested buffer size */
644 bo_AddDWordLE( p_bo, p_video->p_bih->biWidth );
645 bo_AddDWordLE( p_bo, p_video->p_bih->biHeight );
649 bo_AddDWordLE( p_bo, 0 );
650 bo_AddDWordLE( p_bo, 0 );
652 bo_AddDWordLE( p_bo, 0 ); /* ???? */
653 bo_AddDWordLE( p_bo, 0 ); /* ???? */
654 bo_AddDWordLE( p_bo, 0 ); /* ???? */
655 bo_AddDWordLE( p_bo, 0 ); /* ???? */
659 static int avi_HeaderAdd_strh( sout_mux_t *p_mux,
661 avi_stream_t *p_stream )
663 AVI_BOX_ENTER( "strh" );
665 switch( p_stream->i_cat )
669 bo_AddFCC( p_bo, "vids" );
670 bo_AddDWordBE( p_bo, p_stream->p_bih->biCompression );
671 bo_AddDWordLE( p_bo, 0 ); /* flags */
672 bo_AddWordLE( p_bo, 0 ); /* priority */
673 bo_AddWordLE( p_bo, 0 ); /* langage */
674 bo_AddDWordLE( p_bo, 0 ); /* initial frame */
675 bo_AddDWordLE( p_bo, 1000 );/* scale */
676 bo_AddDWordLE( p_bo, (uint32_t)( 1000 * p_stream->f_fps ));
677 bo_AddDWordLE( p_bo, 0 ); /* start */
678 bo_AddDWordLE( p_bo, p_stream->i_frames );
679 bo_AddDWordLE( p_bo, 1024 * 1024 );
680 bo_AddDWordLE( p_bo, -1 ); /* quality */
681 bo_AddDWordLE( p_bo, 0 ); /* samplesize */
682 bo_AddWordLE( p_bo, 0 ); /* ??? */
683 bo_AddWordLE( p_bo, 0 ); /* ??? */
684 bo_AddWordLE( p_bo, p_stream->p_bih->biWidth );
685 bo_AddWordLE( p_bo, p_stream->p_bih->biHeight );
690 int i_rate, i_scale, i_samplesize;
692 i_samplesize = p_stream->p_wf->nBlockAlign;
693 if( i_samplesize > 1 )
695 i_scale = i_samplesize;
696 i_rate = /*i_scale **/ p_stream->i_bitrate / 8;
702 i_rate = 1000 * p_stream->i_bitrate / 8;
704 bo_AddFCC( p_bo, "auds" );
705 bo_AddDWordLE( p_bo, 0 ); /* tag */
706 bo_AddDWordLE( p_bo, 0 ); /* flags */
707 bo_AddWordLE( p_bo, 0 ); /* priority */
708 bo_AddWordLE( p_bo, 0 ); /* langage */
709 bo_AddDWordLE( p_bo, 0 ); /* initial frame */
710 bo_AddDWordLE( p_bo, i_scale );/* scale */
711 bo_AddDWordLE( p_bo, i_rate );
712 bo_AddDWordLE( p_bo, 0 ); /* start */
713 bo_AddDWordLE( p_bo, p_stream->i_frames );
714 bo_AddDWordLE( p_bo, 10 * 1024 );
715 bo_AddDWordLE( p_bo, -1 ); /* quality */
716 bo_AddDWordLE( p_bo, i_samplesize );
717 bo_AddWordLE( p_bo, 0 ); /* ??? */
718 bo_AddWordLE( p_bo, 0 ); /* ??? */
719 bo_AddWordLE( p_bo, 0 );
720 bo_AddWordLE( p_bo, 0 );
728 static int avi_HeaderAdd_strf( sout_mux_t *p_mux,
730 avi_stream_t *p_stream )
732 AVI_BOX_ENTER( "strf" );
734 switch( p_stream->i_cat )
737 bo_AddWordLE( p_bo, p_stream->p_wf->wFormatTag );
738 bo_AddWordLE( p_bo, p_stream->p_wf->nChannels );
739 bo_AddDWordLE( p_bo, p_stream->p_wf->nSamplesPerSec );
740 bo_AddDWordLE( p_bo, p_stream->p_wf->nAvgBytesPerSec );
741 bo_AddWordLE( p_bo, p_stream->p_wf->nBlockAlign );
742 bo_AddWordLE( p_bo, p_stream->p_wf->wBitsPerSample );
743 bo_AddWordLE( p_bo, p_stream->p_wf->cbSize );
744 bo_AddMem( p_bo, p_stream->p_wf->cbSize, (uint8_t*)&p_stream->p_wf[1] );
747 bo_AddDWordLE( p_bo, p_stream->p_bih->biSize );
748 bo_AddDWordLE( p_bo, p_stream->p_bih->biWidth );
749 bo_AddDWordLE( p_bo, p_stream->p_bih->biHeight );
750 bo_AddWordLE( p_bo, p_stream->p_bih->biPlanes );
751 bo_AddWordLE( p_bo, p_stream->p_bih->biBitCount );
752 if( VLC_FOURCC( 0, 0, 0, 1 ) == 0x00000001 )
754 bo_AddDWordBE( p_bo, p_stream->p_bih->biCompression );
758 bo_AddDWordLE( p_bo, p_stream->p_bih->biCompression );
760 bo_AddDWordLE( p_bo, p_stream->p_bih->biSizeImage );
761 bo_AddDWordLE( p_bo, p_stream->p_bih->biXPelsPerMeter );
762 bo_AddDWordLE( p_bo, p_stream->p_bih->biYPelsPerMeter );
763 bo_AddDWordLE( p_bo, p_stream->p_bih->biClrUsed );
764 bo_AddDWordLE( p_bo, p_stream->p_bih->biClrImportant );
766 p_stream->p_bih->biSize - sizeof( BITMAPINFOHEADER ),
767 (uint8_t*)&p_stream->p_bih[1] );
774 static int avi_HeaderAdd_strl( sout_mux_t *p_mux,
776 avi_stream_t *p_stream )
778 AVI_BOX_ENTER_LIST( "strl" );
780 avi_HeaderAdd_strh( p_mux, p_bo, p_stream );
781 avi_HeaderAdd_strf( p_mux, p_bo, p_stream );
786 static sout_buffer_t *avi_HeaderCreateRIFF( sout_mux_t *p_mux )
788 sout_mux_sys_t *p_sys = p_mux->p_sys;
789 sout_buffer_t *p_hdr;
791 int i_maxbytespersec;
795 p_hdr = sout_BufferNew( p_mux->p_sout, HDR_SIZE );
796 memset( p_hdr->p_buffer, 0, HDR_SIZE );
798 bo_Init( &bo, HDR_SIZE, p_hdr->p_buffer );
800 bo_AddFCC( &bo, "RIFF" );
801 bo_AddDWordLE( &bo, p_sys->i_movi_size + HDR_SIZE - 8 + p_sys->i_idx1_size );
802 bo_AddFCC( &bo, "AVI " );
804 bo_AddFCC( &bo, "LIST" );
805 bo_AddDWordLE( &bo, HDR_SIZE - 8);
806 bo_AddFCC( &bo, "hdrl" );
808 avi_HeaderAdd_avih( p_mux, &bo );
809 for( i_stream = 0,i_maxbytespersec = 0; i_stream < p_sys->i_streams; i_stream++ )
811 avi_HeaderAdd_strl( p_mux, &bo, &p_sys->stream[i_stream] );
814 i_junk = HDR_SIZE - bo.i_buffer - 8 - 12;
815 bo_AddFCC( &bo, "JUNK" );
816 bo_AddDWordLE( &bo, i_junk );
818 bo.i_buffer += i_junk;
819 bo_AddFCC( &bo, "LIST" );
820 bo_AddDWordLE( &bo, p_sys->i_movi_size + 4 );
821 bo_AddFCC( &bo, "movi" );
826 static sout_buffer_t * avi_HeaderCreateidx1( sout_mux_t *p_mux )
828 sout_mux_sys_t *p_sys = p_mux->p_sys;
829 sout_buffer_t *p_idx1;
830 uint32_t i_idx1_size;
834 i_idx1_size = 16 * p_sys->idx1.i_entry_count;
836 p_idx1 = sout_BufferNew( p_mux->p_sout, i_idx1_size + 8 );
837 memset( p_idx1->p_buffer, 0, i_idx1_size );
839 bo_Init( &bo, i_idx1_size, p_idx1->p_buffer );
840 bo_AddFCC( &bo, "idx1" );
841 bo_AddDWordLE( &bo, i_idx1_size );
843 for( i = 0; i < p_sys->idx1.i_entry_count; i++ )
845 bo_AddFCC( &bo, p_sys->idx1.entry[i].fcc );
846 bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_flags );
847 bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_pos );
848 bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_length );