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lib: fix typos in libvlc_media_player_set_equalizer
[vlc.git] / modules / mux / avi.c
blobbc72fc1f93df4b929910f1f168a7995e177d8748
1 /*****************************************************************************
2 * avi.c
3 *****************************************************************************
4 * Copyright (C) 2001-2009 VLC authors and VideoLAN
5 * $Id$
6 *
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU Lesser General Public License as published by
11 * the Free Software Foundation; either version 2.1 of the License, or
12 * (at your option) any later version.
13 *
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 Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with this program; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
23
24 /*****************************************************************************
25 * Preamble
26 *****************************************************************************/
27 /* TODO: add OpenDML write support */
28
29
30 #ifdef HAVE_CONFIG_H
31 # include "config.h"
32 #endif
33
34 #include <vlc_common.h>
35 #include <vlc_plugin.h>
36 #include <vlc_sout.h>
37 #include <vlc_block.h>
38 #include <vlc_codecs.h>
39
40 /*****************************************************************************
41 * Module descriptor
42 *****************************************************************************/
43 static int Open ( vlc_object_t * );
44 static void Close ( vlc_object_t * );
45
46 #define SOUT_CFG_PREFIX "sout-avi-"
47
48 #define CFG_ARTIST_TEXT N_("Artist")
49 #define CFG_DATE_TEXT N_("Date")
50 #define CFG_GENRE_TEXT N_("Genre")
51 #define CFG_COPYRIGHT_TEXT N_("Copyright")
52 #define CFG_COMMENT_TEXT N_("Comment")
53 #define CFG_NAME_TEXT N_("Name")
54 #define CFG_SUBJECT_TEXT N_("Subject")
55 #define CFG_ENCODER_TEXT N_("Encoder")
56 #define CFG_KEYWORDS_TEXT N_("Keywords")
57
58 vlc_module_begin ()
59 set_description( N_("AVI muxer") )
60 set_category( CAT_SOUT )
61 set_subcategory( SUBCAT_SOUT_MUX )
62 set_capability( "sout mux", 5 )
63 add_shortcut( "avi" )
64
65 add_string( SOUT_CFG_PREFIX "artist", NULL, CFG_ARTIST_TEXT, NULL, true )
66 add_string( SOUT_CFG_PREFIX "date", NULL, CFG_DATE_TEXT, NULL, true )
67 add_string( SOUT_CFG_PREFIX "genre", NULL, CFG_GENRE_TEXT, NULL, true )
68 add_string( SOUT_CFG_PREFIX "copyright", NULL, CFG_COPYRIGHT_TEXT, NULL, true )
69 add_string( SOUT_CFG_PREFIX "comment", NULL, CFG_COMMENT_TEXT, NULL, true )
70 add_string( SOUT_CFG_PREFIX "name", NULL, CFG_NAME_TEXT, NULL, true )
71 add_string( SOUT_CFG_PREFIX "subject", NULL, CFG_SUBJECT_TEXT, NULL, true )
72 add_string( SOUT_CFG_PREFIX "encoder",
73 "VLC Media Player - " VERSION_MESSAGE,
74 CFG_ENCODER_TEXT, NULL, true )
75 add_string( SOUT_CFG_PREFIX "keywords", NULL, CFG_KEYWORDS_TEXT, NULL, true )
76
77 set_callbacks( Open, Close )
78 vlc_module_end ()
79
80
81 /*****************************************************************************
82 * Local prototypes
83 *****************************************************************************/
84 static int Control( sout_mux_t *, int, va_list );
85 static int AddStream( sout_mux_t *, sout_input_t * );
86 static int DelStream( sout_mux_t *, sout_input_t * );
87 static int Mux ( sout_mux_t * );
88
89 typedef struct avi_stream_s
90 {
91 int i_cat;
92
93 char fcc[4];
94
95 mtime_t i_duration; // in µs
96
97 int i_frames; // total frame count
98 int64_t i_totalsize; // total stream size
99
100 float f_fps;
101 int i_bitrate;
102
103 VLC_BITMAPINFOHEADER *p_bih;
104 WAVEFORMATEX *p_wf;
105
106 } avi_stream_t;
107
108 typedef struct avi_idx1_entry_s
109 {
110 char fcc[4];
111 uint32_t i_flags;
112 uint32_t i_pos;
113 uint32_t i_length;
114
115 } avi_idx1_entry_t;
116
117 typedef struct avi_idx1_s
118 {
119 unsigned int i_entry_count;
120 unsigned int i_entry_max;
121
122 avi_idx1_entry_t *entry;
123 } avi_idx1_t;
124
125 struct sout_mux_sys_t
126 {
127 bool b_write_header;
128
129 int i_streams;
130 int i_stream_video;
131
132 off_t i_movi_size;
133 avi_stream_t stream[100];
134
135 avi_idx1_t idx1;
136 off_t i_idx1_size;
137
138 };
139
140 #define HDR_BASE_SIZE 512 /* single video&audio ~ 400 bytes header */
141
142 /* Flags in avih */
143 #define AVIF_HASINDEX 0x00000010 // Index at end of file?
144 #define AVIF_ISINTERLEAVED 0x00000100
145 #define AVIF_TRUSTCKTYPE 0x00000800 // Use CKType to find key frames?
146
147 /* Flags for index */
148 #define AVIIF_KEYFRAME 0x00000010L /* this frame is a key frame.*/
149
150
151 static block_t *avi_HeaderCreateRIFF( sout_mux_t * );
152 static block_t *avi_HeaderCreateidx1( sout_mux_t * );
153
154 static void SetFCC( uint8_t *p, char *fcc )
155 {
156 memcpy( p, fcc, 4 );
157 }
158
159 /*****************************************************************************
160 * Open:
161 *****************************************************************************/
162 static int Open( vlc_object_t *p_this )
163 {
164 sout_mux_t *p_mux = (sout_mux_t*)p_this;
165 sout_mux_sys_t *p_sys;
166
167 msg_Dbg( p_mux, "AVI muxer opened" );
168
169 p_sys = malloc( sizeof( sout_mux_sys_t ) );
170 if( !p_sys )
171 return VLC_ENOMEM;
172 p_sys->i_streams = 0;
173 p_sys->i_stream_video = -1;
174 p_sys->i_movi_size = 0;
175
176 p_sys->idx1.i_entry_count = 0;
177 p_sys->idx1.i_entry_max = 10000;
178 p_sys->idx1.entry = calloc( p_sys->idx1.i_entry_max,
179 sizeof( avi_idx1_entry_t ) );
180 if( !p_sys->idx1.entry )
181 {
182 free( p_sys );
183 return VLC_ENOMEM;
184 }
185 p_sys->b_write_header = true;
186
187
188 p_mux->pf_control = Control;
189 p_mux->pf_addstream = AddStream;
190 p_mux->pf_delstream = DelStream;
191 p_mux->pf_mux = Mux;
192 p_mux->p_sys = p_sys;
193
194 return VLC_SUCCESS;
195 }
196
197 /*****************************************************************************
198 * Close:
199 *****************************************************************************/
200 static void Close( vlc_object_t * p_this )
201 {
202 sout_mux_t *p_mux = (sout_mux_t*)p_this;
203 sout_mux_sys_t *p_sys = p_mux->p_sys;
204
205 block_t *p_hdr, *p_idx1;
206 int i_stream;
207
208 msg_Dbg( p_mux, "AVI muxer closed" );
209
210 /* first create idx1 chunk (write at the end of the stream */
211 p_idx1 = avi_HeaderCreateidx1( p_mux );
212 p_sys->i_idx1_size = p_idx1->i_buffer;
213 sout_AccessOutWrite( p_mux->p_access, p_idx1 );
214
215 /* calculate some value for headers creations */
216 for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
217 {
218 avi_stream_t *p_stream;
219
220 p_stream = &p_sys->stream[i_stream];
221
222 p_stream->f_fps = 25;
223 if( p_stream->i_duration > 0 )
224 {
225 p_stream->f_fps = (float)p_stream->i_frames /
226 ( (float)p_stream->i_duration /
227 (float)1000000 );
228 }
229 p_stream->i_bitrate = 128 * 1024;
230 if( p_stream->i_duration > 0 )
231 {
232 p_stream->i_bitrate =
233 8 * (uint64_t)1000000 *
234 (uint64_t)p_stream->i_totalsize /
235 (uint64_t)p_stream->i_duration;
236 }
237 msg_Info( p_mux, "stream[%d] duration:%"PRId64" totalsize:%"PRId64
238 " frames:%d fps:%f KiB/s:%d",
239 i_stream,
240 (int64_t)p_stream->i_duration / (int64_t)1000000,
241 p_stream->i_totalsize,
242 p_stream->i_frames,
243 p_stream->f_fps, p_stream->i_bitrate/1024 );
244 }
245
246 p_hdr = avi_HeaderCreateRIFF( p_mux );
247 sout_AccessOutSeek( p_mux->p_access, 0 );
248 sout_AccessOutWrite( p_mux->p_access, p_hdr );
249
250 for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
251 {
252 avi_stream_t *p_stream;
253 p_stream = &p_sys->stream[i_stream];
254 free( p_stream->p_bih );
255 free( p_stream->p_wf );
256 }
257 free( p_sys->idx1.entry );
258 free( p_sys );
259 }
260
261 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
262 {
263 VLC_UNUSED(p_mux);
264 bool *pb_bool;
265 char **ppsz;
266
267 switch( i_query )
268 {
269 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
270 pb_bool = (bool*)va_arg( args, bool * );
271 *pb_bool = false;
272 return VLC_SUCCESS;
273
274 case MUX_GET_ADD_STREAM_WAIT:
275 pb_bool = (bool*)va_arg( args, bool * );
276 *pb_bool = true;
277 return VLC_SUCCESS;
278
279 case MUX_GET_MIME:
280 ppsz = (char**)va_arg( args, char ** );
281 *ppsz = strdup( "video/avi" );
282 return VLC_SUCCESS;
283
284 default:
285 return VLC_EGENERIC;
286 }
287 }
288
289 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
290 {
291 sout_mux_sys_t *p_sys = p_mux->p_sys;
292 avi_stream_t *p_stream;
293
294 if( p_sys->i_streams >= 100 )
295 {
296 msg_Err( p_mux, "too many streams" );
297 return VLC_EGENERIC;
298 }
299
300 msg_Dbg( p_mux, "adding input" );
301 p_input->p_sys = malloc( sizeof( int ) );
302 if( !p_input->p_sys )
303 return VLC_ENOMEM;
304
305 *((int*)p_input->p_sys) = p_sys->i_streams;
306 p_stream = &p_sys->stream[p_sys->i_streams];
307
308 switch( p_input->p_fmt->i_cat )
309 {
310 case AUDIO_ES:
311 p_stream->i_cat = AUDIO_ES;
312 p_stream->fcc[0] = '0' + p_sys->i_streams / 10;
313 p_stream->fcc[1] = '0' + p_sys->i_streams % 10;
314 p_stream->fcc[2] = 'w';
315 p_stream->fcc[3] = 'b';
316
317 p_stream->p_bih = NULL;
318
319 p_stream->p_wf = malloc( sizeof( WAVEFORMATEX ) +
320 p_input->p_fmt->i_extra );
321 if( !p_stream->p_wf )
322 {
323 free( p_input->p_sys );
324 return VLC_ENOMEM;
325 }
326 #define p_wf p_stream->p_wf
327 p_wf->cbSize = p_input->p_fmt->i_extra;
328 if( p_wf->cbSize > 0 )
329 {
330 memcpy( &p_wf[1],
331 p_input->p_fmt->p_extra,
332 p_input->p_fmt->i_extra );
333 }
334 p_wf->nChannels = p_input->p_fmt->audio.i_channels;
335 p_wf->nSamplesPerSec = p_input->p_fmt->audio.i_rate;
336 p_wf->nBlockAlign = p_input->p_fmt->audio.i_blockalign;
337 p_wf->nAvgBytesPerSec= p_input->p_fmt->i_bitrate / 8;
338 p_wf->wBitsPerSample = 0;
339
340 switch( p_input->p_fmt->i_codec )
341 {
342 case VLC_CODEC_A52:
343 p_wf->wFormatTag = WAVE_FORMAT_A52;
344 p_wf->nBlockAlign= 1;
345 break;
346 case VLC_CODEC_MP3:
347 p_wf->wFormatTag = WAVE_FORMAT_MPEGLAYER3;
348 p_wf->nBlockAlign= 1;
349 break;
350 case VLC_CODEC_WMA1:
351 p_wf->wFormatTag = WAVE_FORMAT_WMA1;
352 break;
353 case VLC_CODEC_WMA2:
354 p_wf->wFormatTag = WAVE_FORMAT_WMA2;
355 break;
356 case VLC_CODEC_WMAP:
357 p_wf->wFormatTag = WAVE_FORMAT_WMAP;
358 break;
359 case VLC_CODEC_WMAL:
360 p_wf->wFormatTag = WAVE_FORMAT_WMAL;
361 break;
362 /* raw codec */
363 case VLC_CODEC_U8:
364 p_wf->wFormatTag = WAVE_FORMAT_PCM;
365 p_wf->nBlockAlign= p_wf->nChannels;
366 p_wf->wBitsPerSample = 8;
367 p_wf->nAvgBytesPerSec = (p_wf->wBitsPerSample/8) *
368 p_wf->nSamplesPerSec * p_wf->nChannels;
369 break;
370 case VLC_CODEC_S16L:
371 p_wf->wFormatTag = WAVE_FORMAT_PCM;
372 p_wf->nBlockAlign= 2 * p_wf->nChannels;
373 p_wf->wBitsPerSample = 16;
374 p_wf->nAvgBytesPerSec = (p_wf->wBitsPerSample/8) *
375 p_wf->nSamplesPerSec * p_wf->nChannels;
376 break;
377 case VLC_CODEC_S24L:
378 p_wf->wFormatTag = WAVE_FORMAT_PCM;
379 p_wf->nBlockAlign= 3 * p_wf->nChannels;
380 p_wf->wBitsPerSample = 24;
381 p_wf->nAvgBytesPerSec = (p_wf->wBitsPerSample/8) *
382 p_wf->nSamplesPerSec * p_wf->nChannels;
383 break;
384 case VLC_CODEC_S32L:
385 p_wf->wFormatTag = WAVE_FORMAT_PCM;
386 p_wf->nBlockAlign= 4 * p_wf->nChannels;
387 p_wf->wBitsPerSample = 32;
388 p_wf->nAvgBytesPerSec = (p_wf->wBitsPerSample/8) *
389 p_wf->nSamplesPerSec * p_wf->nChannels;
390 break;
391 default:
392 return VLC_EGENERIC;
393 }
394 #undef p_wf
395 break;
396 case VIDEO_ES:
397 p_stream->i_cat = VIDEO_ES;
398 p_stream->fcc[0] = '0' + p_sys->i_streams / 10;
399 p_stream->fcc[1] = '0' + p_sys->i_streams % 10;
400 p_stream->fcc[2] = 'd';
401 p_stream->fcc[3] = 'c';
402 if( p_sys->i_stream_video < 0 )
403 {
404 p_sys->i_stream_video = p_sys->i_streams;
405 }
406 p_stream->p_wf = NULL;
407 p_stream->p_bih = malloc( sizeof( VLC_BITMAPINFOHEADER ) +
408 p_input->p_fmt->i_extra );
409 if( !p_stream->p_bih )
410 {
411 free( p_input->p_sys );
412 return VLC_ENOMEM;
413 }
414 #define p_bih p_stream->p_bih
415 p_bih->biSize = sizeof( VLC_BITMAPINFOHEADER ) +
416 p_input->p_fmt->i_extra;
417 if( p_input->p_fmt->i_extra > 0 )
418 {
419 memcpy( &p_bih[1],
420 p_input->p_fmt->p_extra,
421 p_input->p_fmt->i_extra );
422 }
423 p_bih->biWidth = p_input->p_fmt->video.i_width;
424 p_bih->biHeight= p_input->p_fmt->video.i_height;
425 p_bih->biPlanes= 1;
426 p_bih->biBitCount = 24;
427 p_bih->biSizeImage = 0;
428 p_bih->biXPelsPerMeter = 0;
429 p_bih->biYPelsPerMeter = 0;
430 p_bih->biClrUsed = 0;
431 p_bih->biClrImportant = 0;
432 switch( p_input->p_fmt->i_codec )
433 {
434 case VLC_CODEC_MP4V:
435 p_bih->biCompression = VLC_FOURCC( 'X', 'V', 'I', 'D' );
436 break;
437 default:
438 p_bih->biCompression = p_input->p_fmt->i_original_fourcc ?: p_input->p_fmt->i_codec;
439 break;
440 }
441 #undef p_bih
442 break;
443 default:
444 return( VLC_EGENERIC );
445 }
446 p_stream->i_totalsize = 0;
447 p_stream->i_frames = 0;
448 p_stream->i_duration = 0;
449
450 /* fixed later */
451 p_stream->f_fps = 25;
452 p_stream->i_bitrate = 128 * 1024;
453
454 p_sys->i_streams++;
455 return( VLC_SUCCESS );
456 }
457
458 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
459 {
460 msg_Dbg( p_mux, "removing input" );
461
462 free( p_input->p_sys );
463 return 0;
464 }
465
466 static int Mux ( sout_mux_t *p_mux )
467 {
468 sout_mux_sys_t *p_sys = p_mux->p_sys;
469 avi_stream_t *p_stream;
470 int i_stream, i;
471
472 if( p_sys->b_write_header )
473 {
474 block_t *p_hdr;
475
476 msg_Dbg( p_mux, "writing header" );
477
478 p_hdr = avi_HeaderCreateRIFF( p_mux );
479 sout_AccessOutWrite( p_mux->p_access, p_hdr );
480
481 p_sys->b_write_header = false;
482 }
483
484 for( i = 0; i < p_mux->i_nb_inputs; i++ )
485 {
486 int i_count;
487 block_fifo_t *p_fifo;
488
489 i_stream = *((int*)p_mux->pp_inputs[i]->p_sys );
490 p_stream = &p_sys->stream[i_stream];
491
492 p_fifo = p_mux->pp_inputs[i]->p_fifo;
493 i_count = block_FifoCount( p_fifo );
494 while( i_count > 1 )
495 {
496 avi_idx1_entry_t *p_idx;
497 block_t *p_data;
498
499 p_data = block_FifoGet( p_fifo );
500 if( block_FifoCount( p_fifo ) > 0 )
501 {
502 block_t *p_next = block_FifoShow( p_fifo );
503 p_data->i_length = p_next->i_dts - p_data->i_dts;
504 }
505
506
507 if( p_stream->i_frames == 0 &&p_stream->i_cat == VIDEO_ES )
508 {
509 /* Add header present at the end of BITMAP info header
510 to first frame in case of XVID */
511 if( p_stream->p_bih->biCompression
512 == VLC_FOURCC( 'X', 'V', 'I', 'D' ) )
513 {
514 int i_header_length =
515 p_stream->p_bih->biSize - sizeof(VLC_BITMAPINFOHEADER);
516 p_data = block_Realloc( p_data,
517 i_header_length, p_data->i_buffer );
518 if( !p_data)
519 return VLC_ENOMEM;
520 memcpy(p_data->p_buffer,&p_stream->p_bih[1], i_header_length);
521 }
522 }
523
524 p_stream->i_frames++;
525 if( p_data->i_length < 0 )
526 {
527 msg_Warn( p_mux, "argg length < 0 l" );
528 block_Release( p_data );
529 i_count--;
530 continue;
531 }
532 p_stream->i_duration += p_data->i_length;
533 p_stream->i_totalsize += p_data->i_buffer;
534
535 /* add idx1 entry for this frame */
536 p_idx = &p_sys->idx1.entry[p_sys->idx1.i_entry_count];
537 memcpy( p_idx->fcc, p_stream->fcc, 4 );
538 p_idx->i_flags = 0;
539 if( ( p_data->i_flags & BLOCK_FLAG_TYPE_MASK ) == 0 || ( p_data->i_flags & BLOCK_FLAG_TYPE_I ) )
540 p_idx->i_flags = AVIIF_KEYFRAME;
541 p_idx->i_pos = p_sys->i_movi_size + 4;
542 p_idx->i_length= p_data->i_buffer;
543 p_sys->idx1.i_entry_count++;
544 if( p_sys->idx1.i_entry_count >= p_sys->idx1.i_entry_max )
545 {
546 p_sys->idx1.i_entry_max += 10000;
547 p_sys->idx1.entry = xrealloc( p_sys->idx1.entry,
548 p_sys->idx1.i_entry_max * sizeof( avi_idx1_entry_t ) );
549 }
550
551 p_data = block_Realloc( p_data, 8, p_data->i_buffer );
552 if( p_data )
553 {
554 SetFCC( p_data->p_buffer, p_stream->fcc );
555 SetDWLE( p_data->p_buffer + 4, p_data->i_buffer - 8 );
556
557 if( p_data->i_buffer & 0x01 )
558 {
559 p_data = block_Realloc( p_data, 0, p_data->i_buffer + 1 );
560 p_data->p_buffer[ p_data->i_buffer - 1 ] = '\0';
561 }
562
563 p_sys->i_movi_size += p_data->i_buffer;
564 sout_AccessOutWrite( p_mux->p_access, p_data );
565 }
566
567 i_count--;
568 }
569
570 }
571 return( 0 );
572 }
573
574 /****************************************************************************/
575 /****************************************************************************/
576 /****************************************************************************/
577 /****************************************************************************/
578
579 typedef struct buffer_out_s
580 {
581 int i_buffer_size;
582 block_t *p_block;
583 } buffer_out_t;
584
585 static void bo_Init( buffer_out_t *p_bo, int i_size )
586 {
587 p_bo->p_block = block_Alloc( i_size );
588 p_bo->p_block->i_buffer = 0;
589 p_bo->i_buffer_size = i_size;
590 }
591
592 static void bo_SetByte( buffer_out_t *p_bo, int i_offset, uint8_t i )
593 {
594 if( i_offset >= p_bo->i_buffer_size )
595 {
596 int i_growth = HDR_BASE_SIZE;
597 while( i_offset >= p_bo->i_buffer_size + i_growth )
598 {
599 i_growth += HDR_BASE_SIZE;
600 }
601 int i = p_bo->p_block->i_buffer; /* Realloc would set payload size == buffer size */
602 p_bo->p_block = block_Realloc( p_bo->p_block, 0, p_bo->i_buffer_size + i_growth );
603 p_bo->p_block->i_buffer = i;
604 p_bo->i_buffer_size += i_growth;
605 }
606 p_bo->p_block->p_buffer[i_offset] = i;
607 }
608 static void bo_AddByte( buffer_out_t *p_bo, uint8_t i )
609 {
610 bo_SetByte( p_bo, p_bo->p_block->i_buffer, i );
611 p_bo->p_block->i_buffer++;
612 }
613 static void bo_SetWordLE( buffer_out_t *p_bo, int i_offset, uint16_t i )
614 {
615 bo_SetByte( p_bo, i_offset, i &0xff );
616 bo_SetByte( p_bo, i_offset + 1, ( ( i >> 8) &0xff ) );
617 }
618 static void bo_AddWordLE( buffer_out_t *p_bo, uint16_t i )
619 {
620 bo_AddByte( p_bo, i &0xff );
621 bo_AddByte( p_bo, ( ( i >> 8) &0xff ) );
622 }
623 static void bo_AddWordBE( buffer_out_t *p_bo, uint16_t i )
624 {
625 bo_AddByte( p_bo, ( ( i >> 8) &0xff ) );
626 bo_AddByte( p_bo, i &0xff );
627 }
628 static void bo_SetDWordLE( buffer_out_t *p_bo, int i_offset, uint32_t i )
629 {
630 bo_SetWordLE( p_bo, i_offset, i &0xffff );
631 bo_SetWordLE( p_bo, i_offset + 2, ( ( i >> 16) &0xffff ) );
632 }
633 static void bo_AddDWordLE( buffer_out_t *p_bo, uint32_t i )
634 {
635 bo_AddWordLE( p_bo, i &0xffff );
636 bo_AddWordLE( p_bo, ( ( i >> 16) &0xffff ) );
637 }
638 static void bo_AddDWordBE( buffer_out_t *p_bo, uint32_t i )
639 {
640 bo_AddWordBE( p_bo, ( ( i >> 16) &0xffff ) );
641 bo_AddWordBE( p_bo, i &0xffff );
642 }
643 #if 0
644 static void bo_AddLWordLE( buffer_out_t *p_bo, uint64_t i )
645 {
646 bo_AddDWordLE( p_bo, i &0xffffffff );
647 bo_AddDWordLE( p_bo, ( ( i >> 32) &0xffffffff ) );
648 }
649 static void bo_AddLWordBE( buffer_out_t *p_bo, uint64_t i )
650 {
651 bo_AddDWordBE( p_bo, ( ( i >> 32) &0xffffffff ) );
652 bo_AddDWordBE( p_bo, i &0xffffffff );
653 }
654 #endif
655
656 static void bo_AddFCC( buffer_out_t *p_bo, const char *fcc )
657 {
658 bo_AddByte( p_bo, fcc[0] );
659 bo_AddByte( p_bo, fcc[1] );
660 bo_AddByte( p_bo, fcc[2] );
661 bo_AddByte( p_bo, fcc[3] );
662 }
663
664 static void bo_AddMem( buffer_out_t *p_bo, int i_size, uint8_t *p_mem )
665 {
666 int i;
667
668 for( i = 0; i < i_size; i++ )
669 {
670 bo_AddByte( p_bo, p_mem[i] );
671 }
672 }
673
674 /****************************************************************************
675 ****************************************************************************
676 **
677 ** avi header generation
678 **
679 ****************************************************************************
680 ****************************************************************************/
681 #define AVI_BOX_ENTER( fcc ) \
682 int i_datasize_offset; \
683 bo_AddFCC( p_bo, fcc ); \
684 i_datasize_offset = p_bo->p_block->i_buffer; \
685 bo_AddDWordLE( p_bo, 0 )
686
687 #define AVI_BOX_ENTER_LIST( fcc ) \
688 AVI_BOX_ENTER( "LIST" ); \
689 bo_AddFCC( p_bo, fcc )
690
691 #define AVI_BOX_EXIT( i_err ) \
692 if( p_bo->p_block->i_buffer&0x01 ) bo_AddByte( p_bo, 0 ); \
693 bo_SetDWordLE( p_bo, i_datasize_offset, p_bo->p_block->i_buffer - i_datasize_offset - 4 ); \
694 return( i_err );
695
696 static int avi_HeaderAdd_avih( sout_mux_t *p_mux,
697 buffer_out_t *p_bo )
698 {
699 sout_mux_sys_t *p_sys = p_mux->p_sys;
700 avi_stream_t *p_video = NULL;
701 int i_stream;
702 uint32_t i_microsecperframe;
703 int i_maxbytespersec;
704 int i_totalframes;
705 AVI_BOX_ENTER( "avih" );
706
707 if( p_sys->i_stream_video >= 0 )
708 {
709 p_video = &p_sys->stream[p_sys->i_stream_video];
710 if( p_video->i_frames <= 0 )
711 {
712 // p_video = NULL;
713 }
714 }
715
716 if( p_video )
717 {
718 i_microsecperframe =
719 (uint32_t)( (float)1000000 /
720 (float)p_sys->stream[p_sys->i_stream_video].f_fps );
721 i_totalframes = p_sys->stream[p_sys->i_stream_video].i_frames;
722 }
723 else
724 {
725 msg_Warn( p_mux, "avi file without video track isn't a good idea..." );
726 i_microsecperframe = 0;
727 i_totalframes = 0;
728 }
729
730 for( i_stream = 0,i_maxbytespersec = 0; i_stream < p_sys->i_streams; i_stream++ )
731 {
732 if( p_sys->stream[i_stream].i_duration > 0 )
733 {
734 i_maxbytespersec +=
735 p_sys->stream[i_stream].i_totalsize /
736 p_sys->stream[i_stream].i_duration;
737 }
738 }
739
740 bo_AddDWordLE( p_bo, i_microsecperframe );
741 bo_AddDWordLE( p_bo, i_maxbytespersec );
742 bo_AddDWordLE( p_bo, 0 ); /* padding */
743 bo_AddDWordLE( p_bo, AVIF_TRUSTCKTYPE |
744 AVIF_HASINDEX |
745 AVIF_ISINTERLEAVED ); /* flags */
746 bo_AddDWordLE( p_bo, i_totalframes );
747 bo_AddDWordLE( p_bo, 0 ); /* initial frame */
748 bo_AddDWordLE( p_bo, p_sys->i_streams ); /* streams count */
749 bo_AddDWordLE( p_bo, 1024 * 1024 ); /* suggested buffer size */
750 if( p_video )
751 {
752 bo_AddDWordLE( p_bo, p_video->p_bih->biWidth );
753 bo_AddDWordLE( p_bo, p_video->p_bih->biHeight );
754 }
755 else
756 {
757 bo_AddDWordLE( p_bo, 0 );
758 bo_AddDWordLE( p_bo, 0 );
759 }
760 bo_AddDWordLE( p_bo, 0 ); /* ???? */
761 bo_AddDWordLE( p_bo, 0 ); /* ???? */
762 bo_AddDWordLE( p_bo, 0 ); /* ???? */
763 bo_AddDWordLE( p_bo, 0 ); /* ???? */
764
765 AVI_BOX_EXIT( 0 );
766 }
767 static int avi_HeaderAdd_strh( buffer_out_t *p_bo, avi_stream_t *p_stream )
768 {
769 AVI_BOX_ENTER( "strh" );
770
771 switch( p_stream->i_cat )
772 {
773 case VIDEO_ES:
774 {
775 bo_AddFCC( p_bo, "vids" );
776 bo_AddDWordBE( p_bo, p_stream->p_bih->biCompression );
777 bo_AddDWordLE( p_bo, 0 ); /* flags */
778 bo_AddWordLE( p_bo, 0 ); /* priority */
779 bo_AddWordLE( p_bo, 0 ); /* langage */
780 bo_AddDWordLE( p_bo, 0 ); /* initial frame */
781 bo_AddDWordLE( p_bo, 1000 );/* scale */
782 bo_AddDWordLE( p_bo, (uint32_t)( 1000 * p_stream->f_fps ));
783 bo_AddDWordLE( p_bo, 0 ); /* start */
784 bo_AddDWordLE( p_bo, p_stream->i_frames );
785 bo_AddDWordLE( p_bo, 1024 * 1024 );
786 bo_AddDWordLE( p_bo, -1 ); /* quality */
787 bo_AddDWordLE( p_bo, 0 ); /* samplesize */
788 bo_AddWordLE( p_bo, 0 ); /* ??? */
789 bo_AddWordLE( p_bo, 0 ); /* ??? */
790 bo_AddWordLE( p_bo, p_stream->p_bih->biWidth );
791 bo_AddWordLE( p_bo, p_stream->p_bih->biHeight );
792 }
793 break;
794 case AUDIO_ES:
795 {
796 int i_rate, i_scale, i_samplesize;
797
798 i_samplesize = p_stream->p_wf->nBlockAlign;
799 if( i_samplesize > 1 )
800 {
801 i_scale = i_samplesize;
802 i_rate = /*i_scale **/ p_stream->i_bitrate / 8;
803 }
804 else
805 {
806 i_samplesize = 1;
807 i_scale = 1000;
808 i_rate = 1000 * p_stream->i_bitrate / 8;
809 }
810 bo_AddFCC( p_bo, "auds" );
811 bo_AddDWordLE( p_bo, 0 ); /* tag */
812 bo_AddDWordLE( p_bo, 0 ); /* flags */
813 bo_AddWordLE( p_bo, 0 ); /* priority */
814 bo_AddWordLE( p_bo, 0 ); /* langage */
815 bo_AddDWordLE( p_bo, 0 ); /* initial frame */
816 bo_AddDWordLE( p_bo, i_scale );/* scale */
817 bo_AddDWordLE( p_bo, i_rate );
818 bo_AddDWordLE( p_bo, 0 ); /* start */
819 bo_AddDWordLE( p_bo, p_stream->i_frames );
820 bo_AddDWordLE( p_bo, 10 * 1024 );
821 bo_AddDWordLE( p_bo, -1 ); /* quality */
822 bo_AddDWordLE( p_bo, i_samplesize );
823 bo_AddWordLE( p_bo, 0 ); /* ??? */
824 bo_AddWordLE( p_bo, 0 ); /* ??? */
825 bo_AddWordLE( p_bo, 0 );
826 bo_AddWordLE( p_bo, 0 );
827 }
828 break;
829 }
830
831 AVI_BOX_EXIT( 0 );
832 }
833
834 static int avi_HeaderAdd_strf( buffer_out_t *p_bo, avi_stream_t *p_stream )
835 {
836 AVI_BOX_ENTER( "strf" );
837
838 switch( p_stream->i_cat )
839 {
840 case AUDIO_ES:
841 bo_AddWordLE( p_bo, p_stream->p_wf->wFormatTag );
842 bo_AddWordLE( p_bo, p_stream->p_wf->nChannels );
843 bo_AddDWordLE( p_bo, p_stream->p_wf->nSamplesPerSec );
844 bo_AddDWordLE( p_bo, p_stream->p_wf->nAvgBytesPerSec );
845 bo_AddWordLE( p_bo, p_stream->p_wf->nBlockAlign );
846 bo_AddWordLE( p_bo, p_stream->p_wf->wBitsPerSample );
847 bo_AddWordLE( p_bo, p_stream->p_wf->cbSize );
848 bo_AddMem( p_bo, p_stream->p_wf->cbSize, (uint8_t*)&p_stream->p_wf[1] );
849 break;
850 case VIDEO_ES:
851 bo_AddDWordLE( p_bo, p_stream->p_bih->biSize );
852 bo_AddDWordLE( p_bo, p_stream->p_bih->biWidth );
853 bo_AddDWordLE( p_bo, p_stream->p_bih->biHeight );
854 bo_AddWordLE( p_bo, p_stream->p_bih->biPlanes );
855 bo_AddWordLE( p_bo, p_stream->p_bih->biBitCount );
856 if( VLC_FOURCC( 0, 0, 0, 1 ) == 0x00000001 )
857 {
858 bo_AddDWordBE( p_bo, p_stream->p_bih->biCompression );
859 }
860 else
861 {
862 bo_AddDWordLE( p_bo, p_stream->p_bih->biCompression );
863 }
864 bo_AddDWordLE( p_bo, p_stream->p_bih->biSizeImage );
865 bo_AddDWordLE( p_bo, p_stream->p_bih->biXPelsPerMeter );
866 bo_AddDWordLE( p_bo, p_stream->p_bih->biYPelsPerMeter );
867 bo_AddDWordLE( p_bo, p_stream->p_bih->biClrUsed );
868 bo_AddDWordLE( p_bo, p_stream->p_bih->biClrImportant );
869 bo_AddMem( p_bo,
870 p_stream->p_bih->biSize - sizeof( VLC_BITMAPINFOHEADER ),
871 (uint8_t*)&p_stream->p_bih[1] );
872 break;
873 }
874
875 AVI_BOX_EXIT( 0 );
876 }
877
878 static int avi_HeaderAdd_strl( buffer_out_t *p_bo, avi_stream_t *p_stream )
879 {
880 AVI_BOX_ENTER_LIST( "strl" );
881
882 avi_HeaderAdd_strh( p_bo, p_stream );
883 avi_HeaderAdd_strf( p_bo, p_stream );
884
885 AVI_BOX_EXIT( 0 );
886 }
887
888 static int avi_HeaderAdd_meta( buffer_out_t *p_bo, const char psz_meta[4],
889 const char *psz_data )
890 {
891 if ( psz_data == NULL ) return 1;
892 const char *psz = psz_data;
893 AVI_BOX_ENTER( psz_meta );
894 while (*psz) bo_AddByte( p_bo, *psz++ );
895 bo_AddByte( p_bo, 0 );
896 AVI_BOX_EXIT( 0 );
897 }
898
899 static int avi_HeaderAdd_INFO( sout_mux_t *p_mux, buffer_out_t *p_bo )
900 {
901 char *psz;
902
903 #define APPLY_META(var, fourcc) \
904 psz = var_InheritString( p_mux, SOUT_CFG_PREFIX var );\
905 if ( psz )\
906 {\
907 avi_HeaderAdd_meta( p_bo, fourcc, psz );\
908 free( psz );\
909 }
910
911 AVI_BOX_ENTER_LIST( "INFO" );
912
913 APPLY_META( "artist", "IART")
914 APPLY_META( "comment", "ICMT")
915 APPLY_META( "copyright","ICOP")
916 APPLY_META( "date", "ICRD")
917 APPLY_META( "genre", "IGNR")
918 APPLY_META( "name", "INAM")
919 APPLY_META( "keywords", "IKEY")
920 APPLY_META( "subject", "ISBJ")
921 APPLY_META( "encoder", "ISFT")
922 /* Some are missing, but are they really useful ?? */
923
924 #undef APPLY_META
925
926 AVI_BOX_EXIT( 0 );
927 }
928
929 static block_t *avi_HeaderCreateRIFF( sout_mux_t *p_mux )
930 {
931 sout_mux_sys_t *p_sys = p_mux->p_sys;
932 int i_stream;
933 int i_junk;
934 buffer_out_t bo;
935
936 struct
937 {
938 int i_riffsize;
939 int i_hdrllistsize;
940 int i_hdrldatastart;
941 } offsets;
942
943 bo_Init( &bo, HDR_BASE_SIZE );
944
945 bo_AddFCC( &bo, "RIFF" );
946 offsets.i_riffsize = bo.p_block->i_buffer;
947 bo_AddDWordLE( &bo, 0xEFBEADDE );
948 bo_AddFCC( &bo, "AVI " );
949
950 bo_AddFCC( &bo, "LIST" );
951 /* HDRL List size should exclude following data in HDR buffer
952 * -12 (RIFF, RIFF size, 'AVI ' tag),
953 * - 8 (hdr1 LIST tag and its size)
954 * - 12 (movi LIST tag, size, 'movi' listType )
955 */
956 offsets.i_hdrllistsize = bo.p_block->i_buffer;
957 bo_AddDWordLE( &bo, 0xEFBEADDE );
958 bo_AddFCC( &bo, "hdrl" );
959 offsets.i_hdrldatastart = bo.p_block->i_buffer;
960
961 avi_HeaderAdd_avih( p_mux, &bo );
962 for( i_stream = 0; i_stream < p_sys->i_streams; i_stream++ )
963 {
964 avi_HeaderAdd_strl( &bo, &p_sys->stream[i_stream] );
965 }
966
967 /* align on 16 bytes */
968 int i_align = ( ( bo.p_block->i_buffer + 12 + 0xE ) & ~ 0xF );
969 i_junk = i_align - bo.p_block->i_buffer;
970 bo_AddFCC( &bo, "JUNK" );
971 bo_AddDWordLE( &bo, i_junk );
972 for( int i=0; i< i_junk; i++ )
973 {
974 bo_AddByte( &bo, 0 );
975 }
976
977 /* Now set hdrl size */
978 bo_SetDWordLE( &bo, offsets.i_hdrllistsize,
979 bo.p_block->i_buffer - offsets.i_hdrldatastart );
980
981 avi_HeaderAdd_INFO( p_mux, &bo );
982
983 bo_AddFCC( &bo, "LIST" );
984 bo_AddDWordLE( &bo, p_sys->i_movi_size + 4 );
985 bo_AddFCC( &bo, "movi" );
986
987 /* Now set RIFF size */
988 bo_SetDWordLE( &bo, offsets.i_riffsize, bo.p_block->i_buffer - 8
989 + p_sys->i_movi_size + p_sys->i_idx1_size );
990
991 return( bo.p_block );
992 }
993
994 static block_t * avi_HeaderCreateidx1( sout_mux_t *p_mux )
995 {
996 sout_mux_sys_t *p_sys = p_mux->p_sys;
997 uint32_t i_idx1_size;
998 buffer_out_t bo;
999
1000 i_idx1_size = 16 * p_sys->idx1.i_entry_count + 8;
1001
1002 bo_Init( &bo, i_idx1_size );
1003 memset( bo.p_block->p_buffer, 0, i_idx1_size);
1004
1005 bo_AddFCC( &bo, "idx1" );
1006 bo_AddDWordLE( &bo, i_idx1_size - 8);
1007
1008 for( unsigned i = 0; i < p_sys->idx1.i_entry_count; i++ )
1009 {
1010 bo_AddFCC( &bo, p_sys->idx1.entry[i].fcc );
1011 bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_flags );
1012 bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_pos );
1013 bo_AddDWordLE( &bo, p_sys->idx1.entry[i].i_length );
1014 }
1015
1016 return( bo.p_block );
1017 }
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