1 /*****************************************************************************
2 * asf.c: asf muxer module for vlc
3 *****************************************************************************
4 * Copyright (C) 2003-2004 VideoLAN
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * Gildas Bazin <gbazin@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
31 #include <vlc/input.h>
37 #define MAX_ASF_TRACKS 128
38 #define ASF_DATA_PACKET_SIZE 4096
40 /*****************************************************************************
42 *****************************************************************************/
43 static int Open ( vlc_object_t * );
44 static void Close ( vlc_object_t * );
46 #define SOUT_CFG_PREFIX "sout-asf-"
48 #define TITLE_TEXT N_("Title")
49 #define TITLE_LONGTEXT N_("Allows you to define the title that will be put " \
51 #define AUTHOR_TEXT N_("Author")
52 #define AUTHOR_LONGTEXT N_("Allows you to define the author that will be put "\
54 #define COPYRIGHT_TEXT N_("Copyright")
55 #define COPYRIGHT_LONGTEXT N_("Allows you to define the copyright string " \
56 "that will be put in ASF comments.")
57 #define COMMENT_TEXT N_("Comment")
58 #define COMMENT_LONGTEXT N_("Allows you to define the comment that will be " \
59 "put in ASF comments.")
60 #define RATING_TEXT N_("Rating")
61 #define RATING_LONGTEXT N_("Allows you to define the \"rating\" that will " \
62 "be put in ASF comments.")
65 set_description( _("ASF muxer") );
66 set_category( CAT_SOUT );
67 set_subcategory( SUBCAT_SOUT_MUX );
68 set_shortname( "ASF" );
70 set_capability( "sout mux", 5 );
71 add_shortcut( "asf" );
72 add_shortcut( "asfh" );
73 set_callbacks( Open, Close );
75 add_string( SOUT_CFG_PREFIX "title", "", NULL, TITLE_TEXT, TITLE_LONGTEXT,
77 add_string( SOUT_CFG_PREFIX "author", "", NULL, AUTHOR_TEXT,
78 AUTHOR_LONGTEXT, VLC_TRUE );
79 add_string( SOUT_CFG_PREFIX "copyright","", NULL, COPYRIGHT_TEXT,
80 COPYRIGHT_LONGTEXT, VLC_TRUE );
81 add_string( SOUT_CFG_PREFIX "comment", "", NULL, COMMENT_TEXT,
82 COMMENT_LONGTEXT, VLC_TRUE );
83 add_string( SOUT_CFG_PREFIX "rating", "", NULL, RATING_TEXT,
84 RATING_LONGTEXT, VLC_TRUE );
87 /*****************************************************************************
89 *****************************************************************************/
90 static const char *ppsz_sout_options[] = {
91 "title", "author", "copyright", "comment", "rating", NULL
94 static int Control ( sout_mux_t *, int, va_list );
95 static int AddStream( sout_mux_t *, sout_input_t * );
96 static int DelStream( sout_mux_t *, sout_input_t * );
97 static int Mux ( sout_mux_t * );
104 /* codec information */
105 uint16_t i_tag; /* for audio */
106 vlc_fourcc_t i_fourcc; /* for video */
107 char *psz_name; /* codec name */
108 int i_blockalign; /* for audio only */
109 vlc_bool_t b_audio_correction;
120 struct sout_mux_sys_t
122 guid_t fid; /* file id */
124 int64_t i_packet_count;
127 mtime_t i_preroll_time;
131 asf_track_t track[MAX_ASF_TRACKS];
133 vlc_bool_t b_write_header;
140 vlc_bool_t b_asf_http;
151 static int MuxGetStream( sout_mux_t *, int *pi_stream, mtime_t *pi_dts );
153 static block_t *asf_header_create( sout_mux_t *, vlc_bool_t );
154 static block_t *asf_packet_create( sout_mux_t *, asf_track_t *, block_t * );
155 static block_t *asf_stream_end_create( sout_mux_t *);
156 static block_t *asf_packet_flush( sout_mux_t * );
166 static void bo_init ( bo_t *, uint8_t *, int );
167 static void bo_add_u8 ( bo_t *, uint8_t );
168 static void bo_addle_u16( bo_t *, uint16_t );
169 static void bo_addle_u32( bo_t *, uint32_t );
170 static void bo_addle_u64( bo_t *, uint64_t );
171 static void bo_add_mem ( bo_t *, uint8_t *, int );
173 static void bo_addle_str16( bo_t *, char * );
175 /*****************************************************************************
177 *****************************************************************************/
178 static int Open( vlc_object_t *p_this )
180 sout_mux_t *p_mux = (sout_mux_t*)p_this;
181 sout_mux_sys_t *p_sys;
185 msg_Dbg( p_mux, "Asf muxer opened" );
186 sout_CfgParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
188 p_mux->pf_control = Control;
189 p_mux->pf_addstream = AddStream;
190 p_mux->pf_delstream = DelStream;
193 p_mux->p_sys = p_sys = malloc( sizeof( sout_mux_sys_t ) );
194 p_sys->b_asf_http = p_mux->psz_mux && !strcmp( p_mux->psz_mux, "asfh" );
195 if( p_sys->b_asf_http )
197 msg_Dbg( p_mux, "creating asf stream to be used with mmsh" );
200 p_sys->i_pk_used = 0;
201 p_sys->i_pk_frame = 0;
202 p_sys->i_dts_first = -1;
203 p_sys->i_dts_last = 0;
204 p_sys->i_preroll_time = 2000;
205 p_sys->i_bitrate = 0;
208 p_sys->b_write_header = VLC_TRUE;
210 p_sys->i_packet_size = ASF_DATA_PACKET_SIZE;
211 p_sys->i_packet_count= 0;
213 /* Generate a random fid */
214 srand( mdate() & 0xffffffff );
215 p_sys->fid.Data1 = 0xbabac001;
216 p_sys->fid.Data2 = ( (uint64_t)rand() << 16 ) / RAND_MAX;
217 p_sys->fid.Data3 = ( (uint64_t)rand() << 16 ) / RAND_MAX;
218 for( i = 0; i < 8; i++ )
220 p_sys->fid.Data4[i] = ( (uint64_t)rand() << 8 ) / RAND_MAX;
224 var_Get( p_mux, SOUT_CFG_PREFIX "title", &val );
225 p_sys->psz_title = val.psz_string;
227 var_Get( p_mux, SOUT_CFG_PREFIX "author", &val );
228 p_sys->psz_author = val.psz_string;
230 var_Get( p_mux, SOUT_CFG_PREFIX "copyright", &val );
231 p_sys->psz_copyright = val.psz_string;
233 var_Get( p_mux, SOUT_CFG_PREFIX "comment", &val );
234 p_sys->psz_comment = val.psz_string;
236 var_Get( p_mux, SOUT_CFG_PREFIX "rating", &val );
237 p_sys->psz_rating = val.psz_string;
239 msg_Dbg( p_mux, "meta data: title='%s' author='%s' copyright='%s' "
240 "comment='%s' rating='%s'",
241 p_sys->psz_title, p_sys->psz_author, p_sys->psz_copyright,
242 p_sys->psz_comment, p_sys->psz_rating );
247 /*****************************************************************************
249 *****************************************************************************/
250 static void Close( vlc_object_t * p_this )
252 sout_mux_t *p_mux = (sout_mux_t*)p_this;
253 sout_mux_sys_t *p_sys = p_mux->p_sys;
257 msg_Dbg( p_mux, "Asf muxer closed" );
259 /* Flush last packet if any */
260 if( (out = asf_packet_flush( p_mux ) ) )
262 sout_AccessOutWrite( p_mux->p_access, out );
265 if( ( out = asf_stream_end_create( p_mux ) ) )
267 sout_AccessOutWrite( p_mux->p_access, out );
271 if( !sout_AccessOutSeek( p_mux->p_access, 0 ) )
273 out = asf_header_create( p_mux, VLC_FALSE );
274 sout_AccessOutWrite( p_mux->p_access, out );
277 for( i = 0; i < p_sys->i_track; i++ )
279 free( p_sys->track[i].p_extra );
280 es_format_Clean( &p_sys->track[i].fmt );
285 /*****************************************************************************
287 *****************************************************************************/
288 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
290 sout_mux_sys_t *p_sys = p_mux->p_sys;
296 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
297 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
298 if( p_sys->b_asf_http ) *pb_bool = VLC_TRUE;
299 else *pb_bool = VLC_FALSE;
302 case MUX_GET_ADD_STREAM_WAIT:
303 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
308 ppsz = (char**)va_arg( args, char ** );
309 if( p_sys->b_asf_http )
310 *ppsz = strdup( "video/x-ms-asf-stream" );
312 *ppsz = strdup( "video/x-ms-asf" );
320 /*****************************************************************************
322 *****************************************************************************/
323 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
325 sout_mux_sys_t *p_sys = p_mux->p_sys;
329 msg_Dbg( p_mux, "adding input" );
330 if( p_sys->i_track >= MAX_ASF_TRACKS )
332 msg_Dbg( p_mux, "cannot add this track (too much track)" );
336 tk = p_input->p_sys = &p_sys->track[p_sys->i_track];
337 tk->i_id = p_sys->i_track + 1;
338 tk->i_cat = p_input->p_fmt->i_cat;
340 tk->b_audio_correction = 0;
346 int i_blockalign = p_input->p_fmt->audio.i_blockalign;
347 int i_bitspersample = p_input->p_fmt->audio.i_bitspersample;
350 switch( p_input->p_fmt->i_codec )
352 case VLC_FOURCC( 'a', '5', '2', ' ' ):
353 tk->i_tag = WAVE_FORMAT_A52;
354 tk->psz_name = "A/52";
356 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
358 tk->psz_name = "MPEG Audio Layer 3";
359 tk->i_tag = WAVE_FORMAT_MPEGLAYER3;
364 tk->psz_name = "MPEG Audio Layer 1/2";
365 tk->i_tag = WAVE_FORMAT_MPEG;
370 case VLC_FOURCC( 'w', 'm', 'a', '1' ):
371 tk->psz_name = "Windows Media Audio v1";
372 tk->i_tag = WAVE_FORMAT_WMA1;
373 tk->b_audio_correction = VLC_TRUE;
375 case VLC_FOURCC( 'w', 'm', 'a', ' ' ):
376 case VLC_FOURCC( 'w', 'm', 'a', '2' ):
377 tk->psz_name= "Windows Media Audio (v2) 7, 8 and 9 Series";
378 tk->i_tag = WAVE_FORMAT_WMA2;
379 tk->b_audio_correction = VLC_TRUE;
381 case VLC_FOURCC( 'w', 'm', 'a', 'p' ):
382 tk->psz_name = "Windows Media Audio 9 Professional";
383 tk->i_tag = WAVE_FORMAT_WMAP;
384 tk->b_audio_correction = VLC_TRUE;
386 case VLC_FOURCC( 'w', 'm', 'a', 'l' ):
387 tk->psz_name = "Windows Media Audio 9 Lossless";
388 tk->i_tag = WAVE_FORMAT_WMAL;
389 tk->b_audio_correction = VLC_TRUE;
392 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
393 tk->psz_name = "Raw audio 8bits";
394 tk->i_tag = WAVE_FORMAT_PCM;
395 i_blockalign= p_input->p_fmt->audio.i_channels;
398 case VLC_FOURCC( 's', '1', '6', 'l' ):
399 tk->psz_name = "Raw audio 16bits";
400 tk->i_tag = WAVE_FORMAT_PCM;
401 i_blockalign= 2 * p_input->p_fmt->audio.i_channels;
402 i_bitspersample = 16;
404 case VLC_FOURCC( 's', '2', '4', 'l' ):
405 tk->psz_name = "Raw audio 24bits";
406 tk->i_tag = WAVE_FORMAT_PCM;
407 i_blockalign= 3 * p_input->p_fmt->audio.i_channels;
408 i_bitspersample = 24;
410 case VLC_FOURCC( 's', '3', '2', 'l' ):
411 tk->psz_name = "Raw audio 32bits";
412 tk->i_tag = WAVE_FORMAT_PCM;
413 i_blockalign= 4 * p_input->p_fmt->audio.i_channels;
414 i_bitspersample = 32;
420 tk->i_extra = sizeof( WAVEFORMATEX ) +
421 p_input->p_fmt->i_extra + i_extra;
422 tk->p_extra = malloc( tk->i_extra );
423 bo_init( &bo, tk->p_extra, tk->i_extra );
424 bo_addle_u16( &bo, tk->i_tag );
425 bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels );
426 bo_addle_u32( &bo, p_input->p_fmt->audio.i_rate );
427 bo_addle_u32( &bo, p_input->p_fmt->i_bitrate / 8 );
428 bo_addle_u16( &bo, i_blockalign );
429 tk->i_blockalign = i_blockalign;
430 bo_addle_u16( &bo, i_bitspersample );
431 if( p_input->p_fmt->i_extra > 0 )
433 bo_addle_u16( &bo, p_input->p_fmt->i_extra );
434 bo_add_mem ( &bo, p_input->p_fmt->p_extra,
435 p_input->p_fmt->i_extra );
439 bo_addle_u16( &bo, i_extra );
440 if( tk->i_tag == WAVE_FORMAT_MPEGLAYER3 )
442 msg_Dbg( p_mux, "adding mp3 header" );
443 bo_addle_u16( &bo, 1 ); /* wId */
444 bo_addle_u32( &bo, 2 ); /* fdwFlags */
445 bo_addle_u16( &bo, 1152 ); /* nBlockSize */
446 bo_addle_u16( &bo, 1 ); /* nFramesPerBlock */
447 bo_addle_u16( &bo, 1393 ); /* nCodecDelay */
449 else if( tk->i_tag == WAVE_FORMAT_MPEG )
451 msg_Dbg( p_mux, "adding mp2 header" );
452 bo_addle_u16( &bo, 2 ); /* fwHeadLayer */
453 bo_addle_u32( &bo, p_input->p_fmt->i_bitrate );
454 bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels == 2 ?1:8 );
455 bo_addle_u16( &bo, 0 ); /* fwHeadModeExt */
456 bo_addle_u16( &bo, 1 ); /* wHeadEmphasis */
457 bo_addle_u16( &bo, 16 ); /* fwHeadFlags */
458 bo_addle_u32( &bo, 0 ); /* dwPTSLow */
459 bo_addle_u32( &bo, 0 ); /* dwPTSHigh */
463 if( p_input->p_fmt->i_bitrate > 24000 )
465 p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
469 p_sys->i_bitrate += 512000;
475 tk->i_extra = 11 + sizeof( BITMAPINFOHEADER ) +
476 p_input->p_fmt->i_extra;
477 tk->p_extra = malloc( tk->i_extra );
478 bo_init( &bo, tk->p_extra, tk->i_extra );
479 bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
480 bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
481 bo_add_u8 ( &bo, 0x02 ); /* flags */
482 bo_addle_u16( &bo, sizeof( BITMAPINFOHEADER ) +
483 p_input->p_fmt->i_extra );
484 bo_addle_u32( &bo, sizeof( BITMAPINFOHEADER ) +
485 p_input->p_fmt->i_extra );
486 bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
487 bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
488 bo_addle_u16( &bo, 1 );
489 bo_addle_u16( &bo, 24 );
490 if( p_input->p_fmt->i_codec == VLC_FOURCC('m','p','4','v') )
492 tk->psz_name = "MPEG-4 Video";
493 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', 'S' );
495 else if( p_input->p_fmt->i_codec == VLC_FOURCC('D','I','V','3') )
497 tk->psz_name = "MSMPEG-4 V3 Video";
498 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '3' );
500 else if( p_input->p_fmt->i_codec == VLC_FOURCC('D','I','V','2') )
502 tk->psz_name = "MSMPEG-4 V2 Video";
503 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '2' );
505 else if( p_input->p_fmt->i_codec == VLC_FOURCC('D','I','V','1') )
507 tk->psz_name = "MSMPEG-4 V1 Video";
508 tk->i_fourcc = VLC_FOURCC( 'M', 'P', 'G', '4' );
510 else if( p_input->p_fmt->i_codec == VLC_FOURCC('W','M','V','1') )
512 tk->psz_name = "Windows Media Video 1";
513 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '1' );
515 else if( p_input->p_fmt->i_codec == VLC_FOURCC('W','M','V','2') )
517 tk->psz_name = "Windows Media Video 2";
518 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '2' );
520 else if( p_input->p_fmt->i_codec == VLC_FOURCC('W','M','V','3') )
522 tk->psz_name = "Windows Media Video 3";
523 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '3' );
527 tk->psz_name = _("Unknown Video");
528 tk->i_fourcc = p_input->p_fmt->i_codec;
530 bo_add_mem( &bo, (uint8_t*)&tk->i_fourcc, 4 );
531 bo_addle_u32( &bo, 0 );
532 bo_addle_u32( &bo, 0 );
533 bo_addle_u32( &bo, 0 );
534 bo_addle_u32( &bo, 0 );
535 bo_addle_u32( &bo, 0 );
536 if( p_input->p_fmt->i_extra > 0 )
538 bo_add_mem ( &bo, p_input->p_fmt->p_extra,
539 p_input->p_fmt->i_extra );
542 if( p_input->p_fmt->i_bitrate > 50000 )
544 p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
548 p_sys->i_bitrate += 1000000;
553 msg_Err(p_mux, "unhandled track type" );
557 es_format_Copy( &tk->fmt, p_input->p_fmt );
563 /*****************************************************************************
565 *****************************************************************************/
566 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
568 msg_Dbg( p_mux, "removing input" );
572 /*****************************************************************************
574 *****************************************************************************/
575 static int Mux( sout_mux_t *p_mux )
577 sout_mux_sys_t *p_sys = p_mux->p_sys;
579 if( p_sys->b_write_header )
581 block_t *out = asf_header_create( p_mux, VLC_TRUE );
583 out->i_flags |= BLOCK_FLAG_HEADER;
584 sout_AccessOutWrite( p_mux->p_access, out );
586 p_sys->b_write_header = VLC_FALSE;
591 sout_input_t *p_input;
598 if( MuxGetStream( p_mux, &i_stream, &i_dts ) )
600 /* not enough data */
604 if( p_sys->i_dts_first < 0 )
606 p_sys->i_dts_first = i_dts;
608 if( p_sys->i_dts_last < i_dts )
610 p_sys->i_dts_last = i_dts;
613 p_input = p_mux->pp_inputs[i_stream];
614 tk = (asf_track_t*)p_input->p_sys;
616 data = block_FifoGet( p_input->p_fifo );
618 if( ( pk = asf_packet_create( p_mux, tk, data ) ) )
620 sout_AccessOutWrite( p_mux->p_access, pk );
627 static int MuxGetStream( sout_mux_t *p_mux, int *pi_stream, mtime_t *pi_dts )
633 for( i = 0, i_dts = 0, i_stream = -1; i < p_mux->i_nb_inputs; i++ )
635 sout_input_t *p_input = p_mux->pp_inputs[i];
638 if( p_input->p_fifo->i_depth <= 0 )
640 if( p_input->p_fmt->i_cat == AUDIO_ES ||
641 p_input->p_fmt->i_cat == VIDEO_ES )
643 /* We need that audio+video fifo contain at least 1 packet */
650 p_data = block_FifoShow( p_input->p_fifo );
651 if( i_stream == -1 || p_data->i_dts < i_dts )
654 i_dts = p_data->i_dts;
658 *pi_stream = i_stream;
664 /****************************************************************************
665 * Asf header construction
666 ****************************************************************************/
668 /****************************************************************************
670 ****************************************************************************/
671 static void bo_init( bo_t *p_bo, uint8_t *p_buffer, int i_size )
673 p_bo->i_buffer_size = i_size;
675 p_bo->p_buffer = p_buffer;
677 static void bo_add_u8( bo_t *p_bo, uint8_t i )
679 if( p_bo->i_buffer < p_bo->i_buffer_size )
681 p_bo->p_buffer[p_bo->i_buffer] = i;
685 static void bo_addle_u16( bo_t *p_bo, uint16_t i )
687 bo_add_u8( p_bo, i &0xff );
688 bo_add_u8( p_bo, ( ( i >> 8) &0xff ) );
690 static void bo_addle_u32( bo_t *p_bo, uint32_t i )
692 bo_addle_u16( p_bo, i &0xffff );
693 bo_addle_u16( p_bo, ( ( i >> 16) &0xffff ) );
695 static void bo_addle_u64( bo_t *p_bo, uint64_t i )
697 bo_addle_u32( p_bo, i &0xffffffff );
698 bo_addle_u32( p_bo, ( ( i >> 32) &0xffffffff ) );
701 static void bo_add_mem( bo_t *p_bo, uint8_t *p_mem, int i_size )
703 int i_copy = __MIN( i_size, p_bo->i_buffer_size - p_bo->i_buffer );
707 memcpy( &p_bo->p_buffer[p_bo->i_buffer], p_mem, i_copy );
709 p_bo->i_buffer += i_size;
712 static void bo_addle_str16( bo_t *bo, char *str )
714 bo_addle_u16( bo, strlen( str ) + 1 );
717 uint16_t c = (uint8_t)*str++;
718 bo_addle_u16( bo, c );
719 if( c == '\0' ) break;
723 static void bo_addle_str16_nosize( bo_t *bo, char *str )
727 uint16_t c = (uint8_t)*str++;
728 bo_addle_u16( bo, c );
729 if( c == '\0' ) break;
733 /****************************************************************************
735 ****************************************************************************/
736 static void bo_add_guid( bo_t *p_bo, const guid_t *id )
739 bo_addle_u32( p_bo, id->Data1 );
740 bo_addle_u16( p_bo, id->Data2 );
741 bo_addle_u16( p_bo, id->Data3 );
742 for( i = 0; i < 8; i++ )
744 bo_add_u8( p_bo, id->Data4[i] );
748 static const guid_t asf_object_header_guid =
749 {0x75B22630, 0x668E, 0x11CF, {0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C}};
750 static const guid_t asf_object_data_guid =
751 {0x75B22636, 0x668E, 0x11CF, {0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C}};
752 static const guid_t asf_object_file_properties_guid =
753 {0x8cabdca1, 0xa947, 0x11cf, {0x8e, 0xe4, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
754 static const guid_t asf_object_stream_properties_guid =
755 {0xB7DC0791, 0xA9B7, 0x11CF, {0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
756 static const guid_t asf_object_header_extention_guid =
757 {0x5FBF03B5, 0xA92E, 0x11CF, {0x8E, 0xE3, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
758 static const guid_t asf_object_stream_type_audio =
759 {0xF8699E40, 0x5B4D, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
760 static const guid_t asf_object_stream_type_video =
761 {0xbc19efc0, 0x5B4D, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
762 static const guid_t asf_guid_audio_conceal_none =
763 {0x20FB5700, 0x5B55, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
764 static const guid_t asf_guid_audio_conceal_spread =
765 {0xBFC3CD50, 0x618F, 0x11CF, {0x8B, 0xB2, 0x00, 0xAA, 0x00, 0xB4, 0xE2, 0x20}};
766 static const guid_t asf_guid_video_conceal_none =
767 {0x20FB5700, 0x5B55, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
768 static const guid_t asf_guid_reserved_1 =
769 {0xABD3D211, 0xA9BA, 0x11cf, {0x8E, 0xE6, 0x00, 0xC0, 0x0C ,0x20, 0x53, 0x65}};
770 static const guid_t asf_object_codec_list_guid =
771 {0x86D15240, 0x311D, 0x11D0, {0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6}};
772 static const guid_t asf_object_codec_list_reserved_guid =
773 {0x86D15241, 0x311D, 0x11D0, {0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6}};
774 static const guid_t asf_object_content_description_guid =
775 {0x75B22633, 0x668E, 0x11CF, {0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c}};
776 static const guid_t asf_object_index_guid =
777 {0x33000890, 0xE5B1, 0x11CF, {0x89, 0xF4, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xCB}};
778 static const guid_t asf_object_metadata_guid =
779 {0xC5F8CBEA, 0x5BAF, 0x4877, {0x84, 0x67, 0xAA, 0x8C, 0x44, 0xFA, 0x4C, 0xCA}};
781 /****************************************************************************
783 ****************************************************************************/
784 static void asf_chunk_add( bo_t *bo,
785 int i_type, int i_len, int i_flags, int i_seq )
787 bo_addle_u16( bo, i_type );
788 bo_addle_u16( bo, i_len + 8 );
789 bo_addle_u32( bo, i_seq );
790 bo_addle_u16( bo, i_flags );
791 bo_addle_u16( bo, i_len + 8 );
794 static block_t *asf_header_create( sout_mux_t *p_mux, vlc_bool_t b_broadcast )
796 sout_mux_sys_t *p_sys = p_mux->p_sys;
798 mtime_t i_duration = 0;
799 int i_size, i_header_ext_size, i;
800 int i_ci_size, i_cm_size = 0, i_cd_size = 0;
804 msg_Dbg( p_mux, "Asf muxer creating header" );
806 if( p_sys->i_dts_first > 0 )
808 i_duration = p_sys->i_dts_last - p_sys->i_dts_first;
809 if( i_duration < 0 ) i_duration = 0;
812 /* calculate header size */
815 for( i = 0; i < p_sys->i_track; i++ )
817 i_size += 78 + p_sys->track[i].i_extra;
818 i_ci_size += 8 + 2 * strlen( p_sys->track[i].psz_name );
819 if( p_sys->track[i].i_cat == AUDIO_ES ) i_ci_size += 4;
820 else if( p_sys->track[i].i_cat == VIDEO_ES ) i_ci_size += 6;
822 /* Error correction data field */
823 if( p_sys->track[i].b_audio_correction ) i_size += 8;
826 /* size of the content description object */
827 if( *p_sys->psz_title || *p_sys->psz_author || *p_sys->psz_copyright ||
828 *p_sys->psz_comment || *p_sys->psz_rating )
830 i_cd_size = 34 + 2 * ( strlen( p_sys->psz_title ) + 1 +
831 strlen( p_sys->psz_author ) + 1 +
832 strlen( p_sys->psz_copyright ) + 1 +
833 strlen( p_sys->psz_comment ) + 1 +
834 strlen( p_sys->psz_rating ) + 1 );
837 /* size of the metadata object */
838 for( i = 0; i < p_sys->i_track; i++ )
840 if( p_sys->track[i].i_cat == VIDEO_ES )
842 i_cm_size = 26 + 2 * (16 + 2 * sizeof("AspectRatio?"));
847 i_header_ext_size = i_cm_size ? i_cm_size + 46 : 0;
848 i_size += i_ci_size + i_cd_size + i_header_ext_size ;
850 if( p_sys->b_asf_http )
852 out = block_New( p_mux, i_size + 50 + 12 );
853 bo_init( &bo, out->p_buffer, i_size + 50 + 12 );
854 asf_chunk_add( &bo, 0x4824, i_size + 50, 0xc00, p_sys->i_seq++ );
858 out = block_New( p_mux, i_size + 50 );
859 bo_init( &bo, out->p_buffer, i_size + 50 );
863 bo_add_guid ( &bo, &asf_object_header_guid );
864 bo_addle_u64( &bo, i_size );
865 bo_addle_u32( &bo, 2 + p_sys->i_track +
866 (i_cd_size ? 1 : 0) + (i_cm_size ? 1 : 0) );
867 bo_add_u8 ( &bo, 1 );
868 bo_add_u8 ( &bo, 2 );
872 /* file properties */
873 bo_add_guid ( &bo, &asf_object_file_properties_guid );
874 bo_addle_u64( &bo, 104 );
875 bo_add_guid ( &bo, &p_sys->fid );
876 bo_addle_u64( &bo, i_size + 50 + p_sys->i_packet_count *
877 p_sys->i_packet_size ); /* file size */
878 bo_addle_u64( &bo, 0 ); /* creation date */
879 bo_addle_u64( &bo, b_broadcast ? 0xffffffffLL : p_sys->i_packet_count );
880 bo_addle_u64( &bo, i_duration * 10 ); /* play duration (100ns) */
881 bo_addle_u64( &bo, i_duration * 10 ); /* send duration (100ns) */
882 bo_addle_u64( &bo, p_sys->i_preroll_time ); /* preroll duration (ms) */
883 bo_addle_u32( &bo, b_broadcast ? 0x01 : 0x02 /* seekable */ ); /* flags */
884 bo_addle_u32( &bo, p_sys->i_packet_size ); /* packet size min */
885 bo_addle_u32( &bo, p_sys->i_packet_size ); /* packet size max */
886 bo_addle_u32( &bo, p_sys->i_bitrate ); /* maxbitrate */
888 /* header extention */
889 if( i_header_ext_size )
891 bo_add_guid ( &bo, &asf_object_header_extention_guid );
892 bo_addle_u64( &bo, i_header_ext_size );
893 bo_add_guid ( &bo, &asf_guid_reserved_1 );
894 bo_addle_u16( &bo, 6 );
895 bo_addle_u32( &bo, i_header_ext_size - 46 );
898 /* metadata object (part of header extension) */
901 int64_t i_num, i_den;
902 int i_dst_num, i_dst_den;
904 for( i = 0; i < p_sys->i_track; i++ )
905 if( p_sys->track[i].i_cat == VIDEO_ES ) break;
907 i_num = p_sys->track[i].fmt.video.i_aspect *
908 (int64_t)p_sys->track[i].fmt.video.i_height;
909 i_den = VOUT_ASPECT_FACTOR * p_sys->track[i].fmt.video.i_width;
910 vlc_reduce( &i_dst_num, &i_dst_den, i_num, i_den, 0 );
912 msg_Dbg( p_mux, "pixel aspect-ratio: %i/%i", i_dst_num, i_dst_den );
914 bo_add_guid ( &bo, &asf_object_metadata_guid );
915 bo_addle_u64( &bo, i_cm_size );
916 bo_addle_u16( &bo, 2 ); /* description records count */
917 /* 1st description record */
918 bo_addle_u16( &bo, 0 ); /* reserved */
919 bo_addle_u16( &bo, i + 1 ); /* stream number (0 for the whole file) */
920 bo_addle_u16( &bo, 2 * sizeof("AspectRatioX") ); /* name length */
921 bo_addle_u16( &bo, 0x3 /* DWORD */ ); /* data type */
922 bo_addle_u32( &bo, 4 ); /* data length */
923 bo_addle_str16_nosize( &bo, "AspectRatioX" );
924 bo_addle_u32( &bo, i_dst_num ); /* data */
925 /* 2nd description record */
926 bo_addle_u16( &bo, 0 ); /* reserved */
927 bo_addle_u16( &bo, i + 1 ); /* stream number (0 for the whole file) */
928 bo_addle_u16( &bo, 2 * sizeof("AspectRatioY") ); /* name length */
929 bo_addle_u16( &bo, 0x3 /* DWORD */ ); /* data type */
930 bo_addle_u32( &bo, 4 ); /* data length */
931 bo_addle_str16_nosize( &bo, "AspectRatioY" );
932 bo_addle_u32( &bo, i_dst_den ); /* data */
935 /* content description header */
938 bo_add_guid ( &bo, &asf_object_content_description_guid );
939 bo_addle_u64( &bo, i_cd_size );
940 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_title ) + 2 );
941 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_author ) + 2 );
942 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_copyright ) + 2 );
943 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_comment ) + 2 );
944 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_rating ) + 2 );
946 bo_addle_str16_nosize( &bo, p_sys->psz_title );
947 bo_addle_str16_nosize( &bo, p_sys->psz_author );
948 bo_addle_str16_nosize( &bo, p_sys->psz_copyright );
949 bo_addle_str16_nosize( &bo, p_sys->psz_comment );
950 bo_addle_str16_nosize( &bo, p_sys->psz_rating );
953 /* stream properties */
954 for( i = 0; i < p_sys->i_track; i++ )
956 tk = &p_sys->track[i];
958 bo_add_guid ( &bo, &asf_object_stream_properties_guid );
959 bo_addle_u64( &bo, 78 + tk->i_extra + (tk->b_audio_correction ? 8:0) );
961 if( tk->i_cat == AUDIO_ES )
963 bo_add_guid( &bo, &asf_object_stream_type_audio );
964 if( tk->b_audio_correction )
965 bo_add_guid( &bo, &asf_guid_audio_conceal_spread );
967 bo_add_guid( &bo, &asf_guid_audio_conceal_none );
969 else if( tk->i_cat == VIDEO_ES )
971 bo_add_guid( &bo, &asf_object_stream_type_video );
972 bo_add_guid( &bo, &asf_guid_video_conceal_none );
974 bo_addle_u64( &bo, 0 ); /* time offset */
975 bo_addle_u32( &bo, tk->i_extra );
976 /* correction data length */
977 bo_addle_u32( &bo, tk->b_audio_correction ? 8 : 0 );
978 bo_addle_u16( &bo, tk->i_id ); /* stream number */
979 bo_addle_u32( &bo, 0 );
980 bo_add_mem ( &bo, tk->p_extra, tk->i_extra );
982 /* Error correction data field */
983 if( tk->b_audio_correction )
985 bo_add_u8( &bo, 0x1 ); /* span */
986 bo_addle_u16( &bo, tk->i_blockalign ); /* virtual packet length */
987 bo_addle_u16( &bo, tk->i_blockalign ); /* virtual chunck length */
988 bo_addle_u16( &bo, 1 ); /* silence length */
989 bo_add_u8( &bo, 0x0 ); /* data */
994 bo_add_guid ( &bo, &asf_object_codec_list_guid );
995 bo_addle_u64( &bo, i_ci_size );
996 bo_add_guid ( &bo, &asf_object_codec_list_reserved_guid );
997 bo_addle_u32( &bo, p_sys->i_track );
998 for( i = 0; i < p_sys->i_track; i++ )
1000 tk = &p_sys->track[i];
1002 if( tk->i_cat == VIDEO_ES ) bo_addle_u16( &bo, 1 /* video */ );
1003 else if( tk->i_cat == AUDIO_ES ) bo_addle_u16( &bo, 2 /* audio */ );
1004 else bo_addle_u16( &bo, 0xFFFF /* unknown */ );
1006 bo_addle_str16( &bo, tk->psz_name );
1007 bo_addle_u16( &bo, 0 );
1008 if( tk->i_cat == AUDIO_ES )
1010 bo_addle_u16( &bo, 2 );
1011 bo_addle_u16( &bo, tk->i_tag );
1013 else if( tk->i_cat == VIDEO_ES )
1015 bo_addle_u16( &bo, 4 );
1016 bo_add_mem ( &bo, (uint8_t*)&tk->i_fourcc, 4 );
1021 bo_add_guid ( &bo, &asf_object_data_guid );
1022 bo_addle_u64( &bo, 50 + p_sys->i_packet_count * p_sys->i_packet_size );
1023 bo_add_guid ( &bo, &p_sys->fid );
1024 bo_addle_u64( &bo, p_sys->i_packet_count );
1025 bo_addle_u16( &bo, 0x101 );
1030 /****************************************************************************
1032 ****************************************************************************/
1033 static block_t *asf_packet_flush( sout_mux_t *p_mux )
1035 sout_mux_sys_t *p_sys = p_mux->p_sys;
1036 int i_pad, i_preheader = p_sys->b_asf_http ? 12 : 0;
1040 if( !p_sys->pk ) return 0;
1042 i_pad = p_sys->i_packet_size - p_sys->i_pk_used;
1043 memset( p_sys->pk->p_buffer + p_sys->i_pk_used, 0, i_pad );
1045 bo_init( &bo, p_sys->pk->p_buffer, 14 + i_preheader );
1047 if( p_sys->b_asf_http )
1048 asf_chunk_add( &bo, 0x4424, p_sys->i_packet_size, 0x0, p_sys->i_seq++);
1050 bo_add_u8 ( &bo, 0x82 );
1051 bo_addle_u16( &bo, 0 );
1052 bo_add_u8( &bo, 0x11 );
1053 bo_add_u8( &bo, 0x5d );
1054 bo_addle_u16( &bo, i_pad );
1055 bo_addle_u32( &bo, (p_sys->i_pk_dts - p_sys->i_dts_first) / 1000 +
1056 p_sys->i_preroll_time );
1057 bo_addle_u16( &bo, 0 /* data->i_length */ );
1058 bo_add_u8( &bo, 0x80 | p_sys->i_pk_frame );
1063 p_sys->i_packet_count++;
1068 static block_t *asf_packet_create( sout_mux_t *p_mux,
1069 asf_track_t *tk, block_t *data )
1071 sout_mux_sys_t *p_sys = p_mux->p_sys;
1073 int i_data = data->i_buffer;
1075 uint8_t *p_data= data->p_buffer;
1076 block_t *first = NULL, **last = &first;
1077 int i_preheader = p_sys->b_asf_http ? 12 : 0;
1079 while( i_pos < i_data )
1084 if( p_sys->pk == NULL )
1086 p_sys->pk = block_New( p_mux, p_sys->i_packet_size + i_preheader );
1087 /* reserve 14 bytes for the packet header */
1088 p_sys->i_pk_used = 14 + i_preheader;
1089 p_sys->i_pk_frame = 0;
1090 p_sys->i_pk_dts = data->i_dts;
1093 bo_init( &bo, &p_sys->pk->p_buffer[p_sys->i_pk_used],
1094 p_sys->i_packet_size - p_sys->i_pk_used );
1096 /* add payload (header size = 17) */
1097 i_payload = __MIN( i_data - i_pos,
1098 p_sys->i_packet_size - p_sys->i_pk_used - 17 );
1100 if( tk->b_audio_correction && p_sys->i_pk_frame && i_payload < i_data )
1102 /* Don't know why yet but WMP doesn't like splitted WMA packets */
1103 *last = asf_packet_flush( p_mux );
1104 last = &(*last)->p_next;
1108 bo_add_u8 ( &bo, !(data->i_flags & BLOCK_FLAG_TYPE_P ||
1109 data->i_flags & BLOCK_FLAG_TYPE_B) ?
1110 0x80 | tk->i_id : tk->i_id );
1111 bo_add_u8 ( &bo, tk->i_sequence );
1112 bo_addle_u32( &bo, i_pos );
1113 bo_add_u8 ( &bo, 0x08 ); /* flags */
1114 bo_addle_u32( &bo, i_data );
1115 bo_addle_u32( &bo, (data->i_dts - p_sys->i_dts_first) / 1000 +
1116 p_sys->i_preroll_time );
1117 bo_addle_u16( &bo, i_payload );
1118 bo_add_mem ( &bo, &p_data[i_pos], i_payload );
1120 p_sys->i_pk_used += 17 + i_payload;
1122 p_sys->i_pk_frame++;
1124 if( p_sys->i_pk_used + 17 >= p_sys->i_packet_size )
1126 /* Not enough data for another payload, flush the packet */
1127 *last = asf_packet_flush( p_mux );
1128 last = &(*last)->p_next;
1133 block_Release( data );
1138 static block_t *asf_stream_end_create( sout_mux_t *p_mux )
1140 sout_mux_sys_t *p_sys = p_mux->p_sys;
1142 block_t *out = NULL;
1145 if( p_sys->b_asf_http )
1147 out = block_New( p_mux, 12 );
1148 bo_init( &bo, out->p_buffer, 12 );
1149 asf_chunk_add( &bo, 0x4524, 0, 0x00, p_sys->i_seq++ );
1154 out = block_New( p_mux, 56 );
1155 bo_init( &bo, out->p_buffer, 56 );
1156 bo_add_guid ( &bo, &asf_object_index_guid );
1157 bo_addle_u64( &bo, 56 );
1158 bo_add_guid ( &bo, &p_sys->fid );
1159 bo_addle_u64( &bo, 10000000 );
1160 bo_addle_u32( &bo, 5 );
1161 bo_addle_u32( &bo, 0 );