1 /*****************************************************************************
2 * asf.c: asf muxer module for vlc
3 *****************************************************************************
4 * Copyright (C) 2003-2004 the VideoLAN team
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 // deprecated -- added sout-asf-packet-size
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.")
63 #define PACKETSIZE_TEXT N_("Packet Size")
64 #define PACKETSIZE_LONGTEXT N_("The ASF packet size -- default is 4096 bytes")
67 set_description( _("ASF muxer") );
68 set_category( CAT_SOUT );
69 set_subcategory( SUBCAT_SOUT_MUX );
70 set_shortname( "ASF" );
72 set_capability( "sout mux", 5 );
73 add_shortcut( "asf" );
74 add_shortcut( "asfh" );
75 set_callbacks( Open, Close );
77 add_string( SOUT_CFG_PREFIX "title", "", NULL, TITLE_TEXT, TITLE_LONGTEXT,
79 add_string( SOUT_CFG_PREFIX "author", "", NULL, AUTHOR_TEXT,
80 AUTHOR_LONGTEXT, VLC_TRUE );
81 add_string( SOUT_CFG_PREFIX "copyright","", NULL, COPYRIGHT_TEXT,
82 COPYRIGHT_LONGTEXT, VLC_TRUE );
83 add_string( SOUT_CFG_PREFIX "comment", "", NULL, COMMENT_TEXT,
84 COMMENT_LONGTEXT, VLC_TRUE );
85 add_string( SOUT_CFG_PREFIX "rating", "", NULL, RATING_TEXT,
86 RATING_LONGTEXT, VLC_TRUE );
87 add_integer( "sout-asf-packet-size", 4096, NULL, PACKETSIZE_TEXT, PACKETSIZE_LONGTEXT, VLC_TRUE );
91 /*****************************************************************************
93 *****************************************************************************/
94 static const char *ppsz_sout_options[] = {
95 "title", "author", "copyright", "comment", "rating", NULL
98 static int Control ( sout_mux_t *, int, va_list );
99 static int AddStream( sout_mux_t *, sout_input_t * );
100 static int DelStream( sout_mux_t *, sout_input_t * );
101 static int Mux ( sout_mux_t * );
108 /* codec information */
109 uint16_t i_tag; /* for audio */
110 vlc_fourcc_t i_fourcc; /* for video */
111 char *psz_name; /* codec name */
112 int i_blockalign; /* for audio only */
113 vlc_bool_t b_audio_correction;
124 struct sout_mux_sys_t
126 guid_t fid; /* file id */
128 int64_t i_packet_count;
131 mtime_t i_preroll_time;
135 asf_track_t track[MAX_ASF_TRACKS];
137 vlc_bool_t b_write_header;
144 vlc_bool_t b_asf_http;
155 static int MuxGetStream( sout_mux_t *, int *pi_stream, mtime_t *pi_dts );
157 static block_t *asf_header_create( sout_mux_t *, vlc_bool_t );
158 static block_t *asf_packet_create( sout_mux_t *, asf_track_t *, block_t * );
159 static block_t *asf_stream_end_create( sout_mux_t *);
160 static block_t *asf_packet_flush( sout_mux_t * );
170 static void bo_init ( bo_t *, uint8_t *, int );
171 static void bo_add_u8 ( bo_t *, uint8_t );
172 static void bo_addle_u16( bo_t *, uint16_t );
173 static void bo_addle_u32( bo_t *, uint32_t );
174 static void bo_addle_u64( bo_t *, uint64_t );
175 static void bo_add_mem ( bo_t *, uint8_t *, int );
177 static void bo_addle_str16( bo_t *, char * );
179 /*****************************************************************************
181 *****************************************************************************/
182 static int Open( vlc_object_t *p_this )
184 sout_mux_t *p_mux = (sout_mux_t*)p_this;
185 sout_mux_sys_t *p_sys;
189 msg_Dbg( p_mux, "Asf muxer opened" );
190 sout_CfgParse( p_mux, SOUT_CFG_PREFIX, ppsz_sout_options, p_mux->p_cfg );
192 p_mux->pf_control = Control;
193 p_mux->pf_addstream = AddStream;
194 p_mux->pf_delstream = DelStream;
197 p_mux->p_sys = p_sys = malloc( sizeof( sout_mux_sys_t ) );
198 p_sys->b_asf_http = p_mux->psz_mux && !strcmp( p_mux->psz_mux, "asfh" );
199 if( p_sys->b_asf_http )
201 msg_Dbg( p_mux, "creating asf stream to be used with mmsh" );
204 p_sys->i_pk_used = 0;
205 p_sys->i_pk_frame = 0;
206 p_sys->i_dts_first = -1;
207 p_sys->i_dts_last = 0;
208 p_sys->i_preroll_time = 2000;
209 p_sys->i_bitrate = 0;
212 p_sys->b_write_header = VLC_TRUE;
214 p_sys->i_packet_size = config_GetInt( p_mux, "sout-asf-packet-size" );
215 msg_Dbg( p_mux, "Packet size %d", p_sys->i_packet_size);
216 p_sys->i_packet_count= 0;
218 /* Generate a random fid */
219 srand( mdate() & 0xffffffff );
220 p_sys->fid.Data1 = 0xbabac001;
221 p_sys->fid.Data2 = ( (uint64_t)rand() << 16 ) / RAND_MAX;
222 p_sys->fid.Data3 = ( (uint64_t)rand() << 16 ) / RAND_MAX;
223 for( i = 0; i < 8; i++ )
225 p_sys->fid.Data4[i] = ( (uint64_t)rand() << 8 ) / RAND_MAX;
229 var_Get( p_mux, SOUT_CFG_PREFIX "title", &val );
230 p_sys->psz_title = val.psz_string;
232 var_Get( p_mux, SOUT_CFG_PREFIX "author", &val );
233 p_sys->psz_author = val.psz_string;
235 var_Get( p_mux, SOUT_CFG_PREFIX "copyright", &val );
236 p_sys->psz_copyright = val.psz_string;
238 var_Get( p_mux, SOUT_CFG_PREFIX "comment", &val );
239 p_sys->psz_comment = val.psz_string;
241 var_Get( p_mux, SOUT_CFG_PREFIX "rating", &val );
242 p_sys->psz_rating = val.psz_string;
244 msg_Dbg( p_mux, "meta data: title='%s' author='%s' copyright='%s' "
245 "comment='%s' rating='%s'",
246 p_sys->psz_title, p_sys->psz_author, p_sys->psz_copyright,
247 p_sys->psz_comment, p_sys->psz_rating );
252 /*****************************************************************************
254 *****************************************************************************/
255 static void Close( vlc_object_t * p_this )
257 sout_mux_t *p_mux = (sout_mux_t*)p_this;
258 sout_mux_sys_t *p_sys = p_mux->p_sys;
262 msg_Dbg( p_mux, "Asf muxer closed" );
264 /* Flush last packet if any */
265 if( (out = asf_packet_flush( p_mux ) ) )
267 sout_AccessOutWrite( p_mux->p_access, out );
270 if( ( out = asf_stream_end_create( p_mux ) ) )
272 sout_AccessOutWrite( p_mux->p_access, out );
276 if( !sout_AccessOutSeek( p_mux->p_access, 0 ) )
278 out = asf_header_create( p_mux, VLC_FALSE );
279 sout_AccessOutWrite( p_mux->p_access, out );
282 for( i = 0; i < p_sys->i_track; i++ )
284 free( p_sys->track[i].p_extra );
285 es_format_Clean( &p_sys->track[i].fmt );
290 /*****************************************************************************
292 *****************************************************************************/
293 static int Control( sout_mux_t *p_mux, int i_query, va_list args )
295 sout_mux_sys_t *p_sys = p_mux->p_sys;
301 case MUX_CAN_ADD_STREAM_WHILE_MUXING:
302 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
303 if( p_sys->b_asf_http ) *pb_bool = VLC_TRUE;
304 else *pb_bool = VLC_FALSE;
307 case MUX_GET_ADD_STREAM_WAIT:
308 pb_bool = (vlc_bool_t*)va_arg( args, vlc_bool_t * );
313 ppsz = (char**)va_arg( args, char ** );
314 if( p_sys->b_asf_http )
315 *ppsz = strdup( "video/x-ms-asf-stream" );
317 *ppsz = strdup( "video/x-ms-asf" );
325 /*****************************************************************************
327 *****************************************************************************/
328 static int AddStream( sout_mux_t *p_mux, sout_input_t *p_input )
330 sout_mux_sys_t *p_sys = p_mux->p_sys;
334 msg_Dbg( p_mux, "adding input" );
335 if( p_sys->i_track >= MAX_ASF_TRACKS )
337 msg_Dbg( p_mux, "cannot add this track (too much track)" );
341 tk = p_input->p_sys = &p_sys->track[p_sys->i_track];
342 tk->i_id = p_sys->i_track + 1;
343 tk->i_cat = p_input->p_fmt->i_cat;
345 tk->b_audio_correction = 0;
351 int i_blockalign = p_input->p_fmt->audio.i_blockalign;
352 int i_bitspersample = p_input->p_fmt->audio.i_bitspersample;
355 switch( p_input->p_fmt->i_codec )
357 case VLC_FOURCC( 'a', '5', '2', ' ' ):
358 tk->i_tag = WAVE_FORMAT_A52;
359 tk->psz_name = "A/52";
362 case VLC_FOURCC( 'm', 'p', 'g', 'a' ):
364 tk->psz_name = "MPEG Audio Layer 3";
365 tk->i_tag = WAVE_FORMAT_MPEGLAYER3;
371 tk->psz_name = "MPEG Audio Layer 1/2";
372 tk->i_tag = WAVE_FORMAT_MPEG;
378 case VLC_FOURCC( 'w', 'm', 'a', '1' ):
379 tk->psz_name = "Windows Media Audio v1";
380 tk->i_tag = WAVE_FORMAT_WMA1;
381 tk->b_audio_correction = VLC_TRUE;
383 case VLC_FOURCC( 'w', 'm', 'a', ' ' ):
384 case VLC_FOURCC( 'w', 'm', 'a', '2' ):
385 tk->psz_name= "Windows Media Audio (v2) 7, 8 and 9 Series";
386 tk->i_tag = WAVE_FORMAT_WMA2;
387 tk->b_audio_correction = VLC_TRUE;
389 case VLC_FOURCC( 'w', 'm', 'a', 'p' ):
390 tk->psz_name = "Windows Media Audio 9 Professional";
391 tk->i_tag = WAVE_FORMAT_WMAP;
392 tk->b_audio_correction = VLC_TRUE;
394 case VLC_FOURCC( 'w', 'm', 'a', 'l' ):
395 tk->psz_name = "Windows Media Audio 9 Lossless";
396 tk->i_tag = WAVE_FORMAT_WMAL;
397 tk->b_audio_correction = VLC_TRUE;
400 case VLC_FOURCC( 'u', '8', ' ', ' ' ):
401 tk->psz_name = "Raw audio 8bits";
402 tk->i_tag = WAVE_FORMAT_PCM;
403 i_blockalign= p_input->p_fmt->audio.i_channels;
406 case VLC_FOURCC( 's', '1', '6', 'l' ):
407 tk->psz_name = "Raw audio 16bits";
408 tk->i_tag = WAVE_FORMAT_PCM;
409 i_blockalign= 2 * p_input->p_fmt->audio.i_channels;
410 i_bitspersample = 16;
412 case VLC_FOURCC( 's', '2', '4', 'l' ):
413 tk->psz_name = "Raw audio 24bits";
414 tk->i_tag = WAVE_FORMAT_PCM;
415 i_blockalign= 3 * p_input->p_fmt->audio.i_channels;
416 i_bitspersample = 24;
418 case VLC_FOURCC( 's', '3', '2', 'l' ):
419 tk->psz_name = "Raw audio 32bits";
420 tk->i_tag = WAVE_FORMAT_PCM;
421 i_blockalign= 4 * p_input->p_fmt->audio.i_channels;
422 i_bitspersample = 32;
428 tk->i_extra = sizeof( WAVEFORMATEX ) +
429 p_input->p_fmt->i_extra + i_extra;
430 tk->p_extra = malloc( tk->i_extra );
431 bo_init( &bo, tk->p_extra, tk->i_extra );
432 bo_addle_u16( &bo, tk->i_tag );
433 bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels );
434 bo_addle_u32( &bo, p_input->p_fmt->audio.i_rate );
435 bo_addle_u32( &bo, p_input->p_fmt->i_bitrate / 8 );
436 bo_addle_u16( &bo, i_blockalign );
437 tk->i_blockalign = i_blockalign;
438 bo_addle_u16( &bo, i_bitspersample );
439 if( p_input->p_fmt->i_extra > 0 )
441 bo_addle_u16( &bo, p_input->p_fmt->i_extra );
442 bo_add_mem ( &bo, p_input->p_fmt->p_extra,
443 p_input->p_fmt->i_extra );
447 bo_addle_u16( &bo, i_extra );
448 if( tk->i_tag == WAVE_FORMAT_MPEGLAYER3 )
450 msg_Dbg( p_mux, "adding mp3 header" );
451 bo_addle_u16( &bo, 1 ); /* wId */
452 bo_addle_u32( &bo, 2 ); /* fdwFlags */
453 bo_addle_u16( &bo, 1152 ); /* nBlockSize */
454 bo_addle_u16( &bo, 1 ); /* nFramesPerBlock */
455 bo_addle_u16( &bo, 1393 ); /* nCodecDelay */
457 else if( tk->i_tag == WAVE_FORMAT_MPEG )
459 msg_Dbg( p_mux, "adding mp2 header" );
460 bo_addle_u16( &bo, 2 ); /* fwHeadLayer */
461 bo_addle_u32( &bo, p_input->p_fmt->i_bitrate );
462 bo_addle_u16( &bo, p_input->p_fmt->audio.i_channels == 2 ?1:8 );
463 bo_addle_u16( &bo, 0 ); /* fwHeadModeExt */
464 bo_addle_u16( &bo, 1 ); /* wHeadEmphasis */
465 bo_addle_u16( &bo, 16 ); /* fwHeadFlags */
466 bo_addle_u32( &bo, 0 ); /* dwPTSLow */
467 bo_addle_u32( &bo, 0 ); /* dwPTSHigh */
471 if( p_input->p_fmt->i_bitrate > 24000 )
473 p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
477 p_sys->i_bitrate += 512000;
483 tk->i_extra = 11 + sizeof( BITMAPINFOHEADER ) +
484 p_input->p_fmt->i_extra;
485 tk->p_extra = malloc( tk->i_extra );
486 bo_init( &bo, tk->p_extra, tk->i_extra );
487 bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
488 bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
489 bo_add_u8 ( &bo, 0x02 ); /* flags */
490 bo_addle_u16( &bo, sizeof( BITMAPINFOHEADER ) +
491 p_input->p_fmt->i_extra );
492 bo_addle_u32( &bo, sizeof( BITMAPINFOHEADER ) +
493 p_input->p_fmt->i_extra );
494 bo_addle_u32( &bo, p_input->p_fmt->video.i_width );
495 bo_addle_u32( &bo, p_input->p_fmt->video.i_height );
496 bo_addle_u16( &bo, 1 );
497 bo_addle_u16( &bo, 24 );
498 if( p_input->p_fmt->i_codec == VLC_FOURCC('m','p','4','v') )
500 tk->psz_name = "MPEG-4 Video";
501 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', 'S' );
503 else if( p_input->p_fmt->i_codec == VLC_FOURCC('D','I','V','3') )
505 tk->psz_name = "MSMPEG-4 V3 Video";
506 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '3' );
508 else if( p_input->p_fmt->i_codec == VLC_FOURCC('D','I','V','2') )
510 tk->psz_name = "MSMPEG-4 V2 Video";
511 tk->i_fourcc = VLC_FOURCC( 'M', 'P', '4', '2' );
513 else if( p_input->p_fmt->i_codec == VLC_FOURCC('D','I','V','1') )
515 tk->psz_name = "MSMPEG-4 V1 Video";
516 tk->i_fourcc = VLC_FOURCC( 'M', 'P', 'G', '4' );
518 else if( p_input->p_fmt->i_codec == VLC_FOURCC('W','M','V','1') )
520 tk->psz_name = "Windows Media Video 7";
521 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '1' );
523 else if( p_input->p_fmt->i_codec == VLC_FOURCC('W','M','V','2') )
525 tk->psz_name = "Windows Media Video 8";
526 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '2' );
528 else if( p_input->p_fmt->i_codec == VLC_FOURCC('W','M','V','3') )
530 tk->psz_name = "Windows Media Video 9";
531 tk->i_fourcc = VLC_FOURCC( 'W', 'M', 'V', '3' );
533 else if( p_input->p_fmt->i_codec == VLC_FOURCC('h','2','6','4') )
535 tk->psz_name = "H.264/MPEG-4 AVC";
536 tk->i_fourcc = VLC_FOURCC('h','2','6','4');
540 tk->psz_name = _("Unknown Video");
541 tk->i_fourcc = p_input->p_fmt->i_codec;
543 bo_add_mem( &bo, (uint8_t*)&tk->i_fourcc, 4 );
544 bo_addle_u32( &bo, 0 );
545 bo_addle_u32( &bo, 0 );
546 bo_addle_u32( &bo, 0 );
547 bo_addle_u32( &bo, 0 );
548 bo_addle_u32( &bo, 0 );
549 if( p_input->p_fmt->i_extra > 0 )
551 bo_add_mem ( &bo, p_input->p_fmt->p_extra,
552 p_input->p_fmt->i_extra );
555 if( p_input->p_fmt->i_bitrate > 50000 )
557 p_sys->i_bitrate += p_input->p_fmt->i_bitrate;
561 p_sys->i_bitrate += 1000000;
566 msg_Err(p_mux, "unhandled track type" );
570 es_format_Copy( &tk->fmt, p_input->p_fmt );
576 /*****************************************************************************
578 *****************************************************************************/
579 static int DelStream( sout_mux_t *p_mux, sout_input_t *p_input )
581 msg_Dbg( p_mux, "removing input" );
585 /*****************************************************************************
587 *****************************************************************************/
588 static int Mux( sout_mux_t *p_mux )
590 sout_mux_sys_t *p_sys = p_mux->p_sys;
592 if( p_sys->b_write_header )
594 block_t *out = asf_header_create( p_mux, VLC_TRUE );
596 out->i_flags |= BLOCK_FLAG_HEADER;
597 sout_AccessOutWrite( p_mux->p_access, out );
599 p_sys->b_write_header = VLC_FALSE;
604 sout_input_t *p_input;
611 if( MuxGetStream( p_mux, &i_stream, &i_dts ) )
613 /* not enough data */
617 if( p_sys->i_dts_first < 0 )
619 p_sys->i_dts_first = i_dts;
621 if( p_sys->i_dts_last < i_dts )
623 p_sys->i_dts_last = i_dts;
626 p_input = p_mux->pp_inputs[i_stream];
627 tk = (asf_track_t*)p_input->p_sys;
629 data = block_FifoGet( p_input->p_fifo );
631 if( ( pk = asf_packet_create( p_mux, tk, data ) ) )
633 sout_AccessOutWrite( p_mux->p_access, pk );
640 static int MuxGetStream( sout_mux_t *p_mux, int *pi_stream, mtime_t *pi_dts )
646 for( i = 0, i_dts = 0, i_stream = -1; i < p_mux->i_nb_inputs; i++ )
648 sout_input_t *p_input = p_mux->pp_inputs[i];
651 if( p_input->p_fifo->i_depth <= 0 )
653 if( p_input->p_fmt->i_cat == AUDIO_ES ||
654 p_input->p_fmt->i_cat == VIDEO_ES )
656 /* We need that audio+video fifo contain at least 1 packet */
663 p_data = block_FifoShow( p_input->p_fifo );
664 if( i_stream == -1 || p_data->i_dts < i_dts )
667 i_dts = p_data->i_dts;
671 *pi_stream = i_stream;
677 /****************************************************************************
678 * Asf header construction
679 ****************************************************************************/
681 /****************************************************************************
683 ****************************************************************************/
684 static void bo_init( bo_t *p_bo, uint8_t *p_buffer, int i_size )
686 p_bo->i_buffer_size = i_size;
688 p_bo->p_buffer = p_buffer;
690 static void bo_add_u8( bo_t *p_bo, uint8_t i )
692 if( p_bo->i_buffer < p_bo->i_buffer_size )
694 p_bo->p_buffer[p_bo->i_buffer] = i;
698 static void bo_addle_u16( bo_t *p_bo, uint16_t i )
700 bo_add_u8( p_bo, i &0xff );
701 bo_add_u8( p_bo, ( ( i >> 8) &0xff ) );
703 static void bo_addle_u32( bo_t *p_bo, uint32_t i )
705 bo_addle_u16( p_bo, i &0xffff );
706 bo_addle_u16( p_bo, ( ( i >> 16) &0xffff ) );
708 static void bo_addle_u64( bo_t *p_bo, uint64_t i )
710 bo_addle_u32( p_bo, i &0xffffffff );
711 bo_addle_u32( p_bo, ( ( i >> 32) &0xffffffff ) );
714 static void bo_add_mem( bo_t *p_bo, uint8_t *p_mem, int i_size )
716 int i_copy = __MIN( i_size, p_bo->i_buffer_size - p_bo->i_buffer );
720 memcpy( &p_bo->p_buffer[p_bo->i_buffer], p_mem, i_copy );
722 p_bo->i_buffer += i_size;
725 static void bo_addle_str16( bo_t *bo, char *str )
727 bo_addle_u16( bo, strlen( str ) + 1 );
730 uint16_t c = (uint8_t)*str++;
731 bo_addle_u16( bo, c );
732 if( c == '\0' ) break;
736 static void bo_addle_str16_nosize( bo_t *bo, char *str )
740 uint16_t c = (uint8_t)*str++;
741 bo_addle_u16( bo, c );
742 if( c == '\0' ) break;
746 /****************************************************************************
748 ****************************************************************************/
749 static void bo_add_guid( bo_t *p_bo, const guid_t *id )
752 bo_addle_u32( p_bo, id->Data1 );
753 bo_addle_u16( p_bo, id->Data2 );
754 bo_addle_u16( p_bo, id->Data3 );
755 for( i = 0; i < 8; i++ )
757 bo_add_u8( p_bo, id->Data4[i] );
761 static const guid_t asf_object_header_guid =
762 {0x75B22630, 0x668E, 0x11CF, {0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C}};
763 static const guid_t asf_object_data_guid =
764 {0x75B22636, 0x668E, 0x11CF, {0xA6, 0xD9, 0x00, 0xAA, 0x00, 0x62, 0xCE, 0x6C}};
765 static const guid_t asf_object_file_properties_guid =
766 {0x8cabdca1, 0xa947, 0x11cf, {0x8e, 0xe4, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
767 static const guid_t asf_object_stream_properties_guid =
768 {0xB7DC0791, 0xA9B7, 0x11CF, {0x8E, 0xE6, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
769 static const guid_t asf_object_header_extention_guid =
770 {0x5FBF03B5, 0xA92E, 0x11CF, {0x8E, 0xE3, 0x00, 0xC0, 0x0C, 0x20, 0x53, 0x65}};
771 static const guid_t asf_object_stream_type_audio =
772 {0xF8699E40, 0x5B4D, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
773 static const guid_t asf_object_stream_type_video =
774 {0xbc19efc0, 0x5B4D, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
775 static const guid_t asf_guid_audio_conceal_none =
776 {0x20FB5700, 0x5B55, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
777 static const guid_t asf_guid_audio_conceal_spread =
778 {0xBFC3CD50, 0x618F, 0x11CF, {0x8B, 0xB2, 0x00, 0xAA, 0x00, 0xB4, 0xE2, 0x20}};
779 static const guid_t asf_guid_video_conceal_none =
780 {0x20FB5700, 0x5B55, 0x11CF, {0xA8, 0xFD, 0x00, 0x80, 0x5F, 0x5C, 0x44, 0x2B}};
781 static const guid_t asf_guid_reserved_1 =
782 {0xABD3D211, 0xA9BA, 0x11cf, {0x8E, 0xE6, 0x00, 0xC0, 0x0C ,0x20, 0x53, 0x65}};
783 static const guid_t asf_object_codec_list_guid =
784 {0x86D15240, 0x311D, 0x11D0, {0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6}};
785 static const guid_t asf_object_codec_list_reserved_guid =
786 {0x86D15241, 0x311D, 0x11D0, {0xA3, 0xA4, 0x00, 0xA0, 0xC9, 0x03, 0x48, 0xF6}};
787 static const guid_t asf_object_content_description_guid =
788 {0x75B22633, 0x668E, 0x11CF, {0xa6, 0xd9, 0x00, 0xaa, 0x00, 0x62, 0xce, 0x6c}};
789 static const guid_t asf_object_index_guid =
790 {0x33000890, 0xE5B1, 0x11CF, {0x89, 0xF4, 0x00, 0xA0, 0xC9, 0x03, 0x49, 0xCB}};
791 static const guid_t asf_object_metadata_guid =
792 {0xC5F8CBEA, 0x5BAF, 0x4877, {0x84, 0x67, 0xAA, 0x8C, 0x44, 0xFA, 0x4C, 0xCA}};
794 /****************************************************************************
796 ****************************************************************************/
797 static void asf_chunk_add( bo_t *bo,
798 int i_type, int i_len, int i_flags, int i_seq )
800 bo_addle_u16( bo, i_type );
801 bo_addle_u16( bo, i_len + 8 );
802 bo_addle_u32( bo, i_seq );
803 bo_addle_u16( bo, i_flags );
804 bo_addle_u16( bo, i_len + 8 );
807 static block_t *asf_header_create( sout_mux_t *p_mux, vlc_bool_t b_broadcast )
809 sout_mux_sys_t *p_sys = p_mux->p_sys;
811 mtime_t i_duration = 0;
812 int i_size, i_header_ext_size, i;
813 int i_ci_size, i_cm_size = 0, i_cd_size = 0;
817 msg_Dbg( p_mux, "Asf muxer creating header" );
819 if( p_sys->i_dts_first > 0 )
821 i_duration = p_sys->i_dts_last - p_sys->i_dts_first;
822 if( i_duration < 0 ) i_duration = 0;
825 /* calculate header size */
828 for( i = 0; i < p_sys->i_track; i++ )
830 i_size += 78 + p_sys->track[i].i_extra;
831 i_ci_size += 8 + 2 * strlen( p_sys->track[i].psz_name );
832 if( p_sys->track[i].i_cat == AUDIO_ES ) i_ci_size += 4;
833 else if( p_sys->track[i].i_cat == VIDEO_ES ) i_ci_size += 6;
835 /* Error correction data field */
836 if( p_sys->track[i].b_audio_correction ) i_size += 8;
839 /* size of the content description object */
840 if( *p_sys->psz_title || *p_sys->psz_author || *p_sys->psz_copyright ||
841 *p_sys->psz_comment || *p_sys->psz_rating )
843 i_cd_size = 34 + 2 * ( strlen( p_sys->psz_title ) + 1 +
844 strlen( p_sys->psz_author ) + 1 +
845 strlen( p_sys->psz_copyright ) + 1 +
846 strlen( p_sys->psz_comment ) + 1 +
847 strlen( p_sys->psz_rating ) + 1 );
850 /* size of the metadata object */
851 for( i = 0; i < p_sys->i_track; i++ )
853 if( p_sys->track[i].i_cat == VIDEO_ES )
855 i_cm_size = 26 + 2 * (16 + 2 * sizeof("AspectRatio?"));
860 i_header_ext_size = i_cm_size ? i_cm_size + 46 : 0;
861 i_size += i_ci_size + i_cd_size + i_header_ext_size ;
863 if( p_sys->b_asf_http )
865 out = block_New( p_mux, i_size + 50 + 12 );
866 bo_init( &bo, out->p_buffer, i_size + 50 + 12 );
867 asf_chunk_add( &bo, 0x4824, i_size + 50, 0xc00, p_sys->i_seq++ );
871 out = block_New( p_mux, i_size + 50 );
872 bo_init( &bo, out->p_buffer, i_size + 50 );
876 bo_add_guid ( &bo, &asf_object_header_guid );
877 bo_addle_u64( &bo, i_size );
878 bo_addle_u32( &bo, 2 + p_sys->i_track +
879 (i_cd_size ? 1 : 0) + (i_cm_size ? 1 : 0) );
880 bo_add_u8 ( &bo, 1 );
881 bo_add_u8 ( &bo, 2 );
885 /* file properties */
886 bo_add_guid ( &bo, &asf_object_file_properties_guid );
887 bo_addle_u64( &bo, 104 );
888 bo_add_guid ( &bo, &p_sys->fid );
889 bo_addle_u64( &bo, i_size + 50 + p_sys->i_packet_count *
890 p_sys->i_packet_size ); /* file size */
891 bo_addle_u64( &bo, 0 ); /* creation date */
892 bo_addle_u64( &bo, b_broadcast ? 0xffffffffLL : p_sys->i_packet_count );
893 bo_addle_u64( &bo, i_duration * 10 ); /* play duration (100ns) */
894 bo_addle_u64( &bo, i_duration * 10 ); /* send duration (100ns) */
895 bo_addle_u64( &bo, p_sys->i_preroll_time ); /* preroll duration (ms) */
896 bo_addle_u32( &bo, b_broadcast ? 0x01 : 0x02 /* seekable */ ); /* flags */
897 bo_addle_u32( &bo, p_sys->i_packet_size ); /* packet size min */
898 bo_addle_u32( &bo, p_sys->i_packet_size ); /* packet size max */
899 bo_addle_u32( &bo, p_sys->i_bitrate ); /* maxbitrate */
901 /* header extention */
902 if( i_header_ext_size )
904 bo_add_guid ( &bo, &asf_object_header_extention_guid );
905 bo_addle_u64( &bo, i_header_ext_size );
906 bo_add_guid ( &bo, &asf_guid_reserved_1 );
907 bo_addle_u16( &bo, 6 );
908 bo_addle_u32( &bo, i_header_ext_size - 46 );
911 /* metadata object (part of header extension) */
914 int64_t i_num, i_den;
915 unsigned int i_dst_num, i_dst_den;
917 for( i = 0; i < p_sys->i_track; i++ )
918 if( p_sys->track[i].i_cat == VIDEO_ES ) break;
920 i_num = p_sys->track[i].fmt.video.i_aspect *
921 (int64_t)p_sys->track[i].fmt.video.i_height;
922 i_den = VOUT_ASPECT_FACTOR * p_sys->track[i].fmt.video.i_width;
923 vlc_ureduce( &i_dst_num, &i_dst_den, i_num, i_den, 0 );
925 msg_Dbg( p_mux, "pixel aspect-ratio: %i/%i", i_dst_num, i_dst_den );
927 bo_add_guid ( &bo, &asf_object_metadata_guid );
928 bo_addle_u64( &bo, i_cm_size );
929 bo_addle_u16( &bo, 2 ); /* description records count */
930 /* 1st description record */
931 bo_addle_u16( &bo, 0 ); /* reserved */
932 bo_addle_u16( &bo, i + 1 ); /* stream number (0 for the whole file) */
933 bo_addle_u16( &bo, 2 * sizeof("AspectRatioX") ); /* name length */
934 bo_addle_u16( &bo, 0x3 /* DWORD */ ); /* data type */
935 bo_addle_u32( &bo, 4 ); /* data length */
936 bo_addle_str16_nosize( &bo, "AspectRatioX" );
937 bo_addle_u32( &bo, i_dst_num ); /* data */
938 /* 2nd description record */
939 bo_addle_u16( &bo, 0 ); /* reserved */
940 bo_addle_u16( &bo, i + 1 ); /* stream number (0 for the whole file) */
941 bo_addle_u16( &bo, 2 * sizeof("AspectRatioY") ); /* name length */
942 bo_addle_u16( &bo, 0x3 /* DWORD */ ); /* data type */
943 bo_addle_u32( &bo, 4 ); /* data length */
944 bo_addle_str16_nosize( &bo, "AspectRatioY" );
945 bo_addle_u32( &bo, i_dst_den ); /* data */
948 /* content description header */
951 bo_add_guid ( &bo, &asf_object_content_description_guid );
952 bo_addle_u64( &bo, i_cd_size );
953 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_title ) + 2 );
954 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_author ) + 2 );
955 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_copyright ) + 2 );
956 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_comment ) + 2 );
957 bo_addle_u16( &bo, 2 * strlen( p_sys->psz_rating ) + 2 );
959 bo_addle_str16_nosize( &bo, p_sys->psz_title );
960 bo_addle_str16_nosize( &bo, p_sys->psz_author );
961 bo_addle_str16_nosize( &bo, p_sys->psz_copyright );
962 bo_addle_str16_nosize( &bo, p_sys->psz_comment );
963 bo_addle_str16_nosize( &bo, p_sys->psz_rating );
966 /* stream properties */
967 for( i = 0; i < p_sys->i_track; i++ )
969 tk = &p_sys->track[i];
971 bo_add_guid ( &bo, &asf_object_stream_properties_guid );
972 bo_addle_u64( &bo, 78 + tk->i_extra + (tk->b_audio_correction ? 8:0) );
974 if( tk->i_cat == AUDIO_ES )
976 bo_add_guid( &bo, &asf_object_stream_type_audio );
977 if( tk->b_audio_correction )
978 bo_add_guid( &bo, &asf_guid_audio_conceal_spread );
980 bo_add_guid( &bo, &asf_guid_audio_conceal_none );
982 else if( tk->i_cat == VIDEO_ES )
984 bo_add_guid( &bo, &asf_object_stream_type_video );
985 bo_add_guid( &bo, &asf_guid_video_conceal_none );
987 bo_addle_u64( &bo, 0 ); /* time offset */
988 bo_addle_u32( &bo, tk->i_extra );
989 /* correction data length */
990 bo_addle_u32( &bo, tk->b_audio_correction ? 8 : 0 );
991 bo_addle_u16( &bo, tk->i_id ); /* stream number */
992 bo_addle_u32( &bo, 0 );
993 bo_add_mem ( &bo, tk->p_extra, tk->i_extra );
995 /* Error correction data field */
996 if( tk->b_audio_correction )
998 bo_add_u8( &bo, 0x1 ); /* span */
999 bo_addle_u16( &bo, tk->i_blockalign ); /* virtual packet length */
1000 bo_addle_u16( &bo, tk->i_blockalign ); /* virtual chunck length */
1001 bo_addle_u16( &bo, 1 ); /* silence length */
1002 bo_add_u8( &bo, 0x0 ); /* data */
1007 bo_add_guid ( &bo, &asf_object_codec_list_guid );
1008 bo_addle_u64( &bo, i_ci_size );
1009 bo_add_guid ( &bo, &asf_object_codec_list_reserved_guid );
1010 bo_addle_u32( &bo, p_sys->i_track );
1011 for( i = 0; i < p_sys->i_track; i++ )
1013 tk = &p_sys->track[i];
1015 if( tk->i_cat == VIDEO_ES ) bo_addle_u16( &bo, 1 /* video */ );
1016 else if( tk->i_cat == AUDIO_ES ) bo_addle_u16( &bo, 2 /* audio */ );
1017 else bo_addle_u16( &bo, 0xFFFF /* unknown */ );
1019 bo_addle_str16( &bo, tk->psz_name );
1020 bo_addle_u16( &bo, 0 );
1021 if( tk->i_cat == AUDIO_ES )
1023 bo_addle_u16( &bo, 2 );
1024 bo_addle_u16( &bo, tk->i_tag );
1026 else if( tk->i_cat == VIDEO_ES )
1028 bo_addle_u16( &bo, 4 );
1029 bo_add_mem ( &bo, (uint8_t*)&tk->i_fourcc, 4 );
1034 bo_add_guid ( &bo, &asf_object_data_guid );
1035 bo_addle_u64( &bo, 50 + p_sys->i_packet_count * p_sys->i_packet_size );
1036 bo_add_guid ( &bo, &p_sys->fid );
1037 bo_addle_u64( &bo, p_sys->i_packet_count );
1038 bo_addle_u16( &bo, 0x101 );
1043 /****************************************************************************
1045 ****************************************************************************/
1046 static block_t *asf_packet_flush( sout_mux_t *p_mux )
1048 sout_mux_sys_t *p_sys = p_mux->p_sys;
1049 int i_pad, i_preheader = p_sys->b_asf_http ? 12 : 0;
1053 if( !p_sys->pk ) return 0;
1055 i_pad = p_sys->i_packet_size - p_sys->i_pk_used;
1056 memset( p_sys->pk->p_buffer + p_sys->i_pk_used, 0, i_pad );
1058 bo_init( &bo, p_sys->pk->p_buffer, 14 + i_preheader );
1060 if( p_sys->b_asf_http )
1061 asf_chunk_add( &bo, 0x4424, p_sys->i_packet_size, 0x0, p_sys->i_seq++);
1063 bo_add_u8 ( &bo, 0x82 );
1064 bo_addle_u16( &bo, 0 );
1065 bo_add_u8( &bo, 0x11 );
1066 bo_add_u8( &bo, 0x5d );
1067 bo_addle_u16( &bo, i_pad );
1068 bo_addle_u32( &bo, (p_sys->i_pk_dts - p_sys->i_dts_first) / 1000 +
1069 p_sys->i_preroll_time );
1070 bo_addle_u16( &bo, 0 /* data->i_length */ );
1071 bo_add_u8( &bo, 0x80 | p_sys->i_pk_frame );
1076 p_sys->i_packet_count++;
1081 static block_t *asf_packet_create( sout_mux_t *p_mux,
1082 asf_track_t *tk, block_t *data )
1084 sout_mux_sys_t *p_sys = p_mux->p_sys;
1086 int i_data = data->i_buffer;
1088 uint8_t *p_data= data->p_buffer;
1089 block_t *first = NULL, **last = &first;
1090 int i_preheader = p_sys->b_asf_http ? 12 : 0;
1092 while( i_pos < i_data )
1097 if( p_sys->pk == NULL )
1099 p_sys->pk = block_New( p_mux, p_sys->i_packet_size + i_preheader );
1100 /* reserve 14 bytes for the packet header */
1101 p_sys->i_pk_used = 14 + i_preheader;
1102 p_sys->i_pk_frame = 0;
1103 p_sys->i_pk_dts = data->i_dts;
1106 bo_init( &bo, &p_sys->pk->p_buffer[p_sys->i_pk_used],
1107 p_sys->i_packet_size - p_sys->i_pk_used );
1109 /* add payload (header size = 17) */
1110 i_payload = __MIN( i_data - i_pos,
1111 p_sys->i_packet_size - p_sys->i_pk_used - 17 );
1113 if( tk->b_audio_correction && p_sys->i_pk_frame && i_payload < i_data )
1115 /* Don't know why yet but WMP doesn't like splitted WMA packets */
1116 *last = asf_packet_flush( p_mux );
1117 last = &(*last)->p_next;
1121 bo_add_u8 ( &bo, !(data->i_flags & BLOCK_FLAG_TYPE_P ||
1122 data->i_flags & BLOCK_FLAG_TYPE_B) ?
1123 0x80 | tk->i_id : tk->i_id );
1124 bo_add_u8 ( &bo, tk->i_sequence );
1125 bo_addle_u32( &bo, i_pos );
1126 bo_add_u8 ( &bo, 0x08 ); /* flags */
1127 bo_addle_u32( &bo, i_data );
1128 bo_addle_u32( &bo, (data->i_dts - p_sys->i_dts_first) / 1000 +
1129 p_sys->i_preroll_time );
1130 bo_addle_u16( &bo, i_payload );
1131 bo_add_mem ( &bo, &p_data[i_pos], i_payload );
1133 p_sys->i_pk_used += 17 + i_payload;
1135 p_sys->i_pk_frame++;
1137 if( p_sys->i_pk_used + 17 >= p_sys->i_packet_size )
1139 /* Not enough data for another payload, flush the packet */
1140 *last = asf_packet_flush( p_mux );
1141 last = &(*last)->p_next;
1146 block_Release( data );
1151 static block_t *asf_stream_end_create( sout_mux_t *p_mux )
1153 sout_mux_sys_t *p_sys = p_mux->p_sys;
1155 block_t *out = NULL;
1158 if( p_sys->b_asf_http )
1160 out = block_New( p_mux, 12 );
1161 bo_init( &bo, out->p_buffer, 12 );
1162 asf_chunk_add( &bo, 0x4524, 0, 0x00, p_sys->i_seq++ );
1167 out = block_New( p_mux, 56 );
1168 bo_init( &bo, out->p_buffer, 56 );
1169 bo_add_guid ( &bo, &asf_object_index_guid );
1170 bo_addle_u64( &bo, 56 );
1171 bo_add_guid ( &bo, &p_sys->fid );
1172 bo_addle_u64( &bo, 10000000 );
1173 bo_addle_u32( &bo, 5 );
1174 bo_addle_u32( &bo, 0 );