1 /*****************************************************************************
2 * real.c: Real demuxer.
3 *****************************************************************************
4 * Copyright (C) 2004 the VideoLAN team
7 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
27 #include <stdlib.h> /* malloc(), free() */
30 #include <vlc/input.h>
32 /*****************************************************************************
34 *****************************************************************************/
35 static int Open ( vlc_object_t * );
36 static void Close ( vlc_object_t * );
39 set_description( _("Real demuxer" ) );
40 set_capability( "demux2", 15 );
41 set_category( CAT_INPUT );
42 set_subcategory( SUBCAT_INPUT_DEMUX );
43 set_callbacks( Open, Close );
44 add_shortcut( "real" );
48 /*****************************************************************************
50 *****************************************************************************/
64 int i_coded_frame_size;
69 block_t **p_subpackets;
75 int64_t i_data_offset;
77 uint32_t i_data_packets_count;
78 uint32_t i_data_packets;
79 int64_t i_data_offset_next;
84 uint8_t buffer[65536];
89 static int Demux( demux_t *p_demux );
90 static int Control( demux_t *p_demux, int i_query, va_list args );
92 static int HeaderRead( demux_t *p_demux );
93 static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num );
95 /*****************************************************************************
97 *****************************************************************************/
98 static int Open( vlc_object_t *p_this )
100 demux_t *p_demux = (demux_t*)p_this;
105 if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 ) return VLC_EGENERIC;
106 if( strncmp( (char *)p_peek, ".RMF", 4 ) ) return VLC_EGENERIC;
108 /* Fill p_demux field */
109 p_demux->pf_demux = Demux;
110 p_demux->pf_control = Control;
111 p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
112 memset( p_sys, 0, sizeof( demux_sys_t ) );
113 p_sys->i_data_offset = 0;
119 /* Parse the headers */
120 if( HeaderRead( p_demux ) )
123 msg_Err( p_demux, "invalid header" );
124 for( i = 0; i < p_sys->i_track; i++ )
126 real_track_t *tk = p_sys->track[i];
130 es_out_Del( p_demux->out, tk->p_es );
134 if( p_sys->i_track > 0 )
136 free( p_sys->track );
145 /*****************************************************************************
147 *****************************************************************************/
148 static void Close( vlc_object_t *p_this )
150 demux_t *p_demux = (demux_t*)p_this;
151 demux_sys_t *p_sys = p_demux->p_sys;
154 for( i = 0; i < p_sys->i_track; i++ )
156 real_track_t *tk = p_sys->track[i];
158 if( tk->p_frame ) block_Release( tk->p_frame );
159 es_format_Clean( &tk->fmt );
161 while( tk->i_subpackets-- )
163 if( tk->p_subpackets[tk->i_subpackets] )
164 block_Release( tk->p_subpackets[tk->i_subpackets] );
165 if( !tk->i_subpackets ) free( tk->p_subpackets );
171 if( p_sys->i_track > 0 ) free( p_sys->track );
176 /*****************************************************************************
178 *****************************************************************************/
179 static int Demux( demux_t *p_demux )
181 demux_sys_t *p_sys = p_demux->p_sys;
187 real_track_t *tk = NULL;
188 vlc_bool_t b_selected;
190 if( p_sys->i_data_packets >= p_sys->i_data_packets_count &&
191 p_sys->i_data_packets_count )
193 if( stream_Read( p_demux->s, header, 18 ) < 18 )
197 if( strncmp( (char *)header, "DATA", 4 ) )
201 p_sys->i_data_offset = stream_Tell( p_demux->s ) - 18;
202 p_sys->i_data_size = GetDWBE( &header[4] );
203 p_sys->i_data_packets_count = GetDWBE( &header[10] );
204 p_sys->i_data_packets = 0;
205 p_sys->i_data_offset_next = GetDWBE( &header[14] );
207 msg_Dbg( p_demux, "entering new DATA packets=%d next=%u",
208 p_sys->i_data_packets_count,
209 (uint32_t)p_sys->i_data_offset_next );
212 if( stream_Read( p_demux->s, header, 12 ) < 12 ) return 0;
214 i_size = GetWBE( &header[2] ) - 12;
215 i_id = GetWBE( &header[4] );
216 i_pts = 1000 * GetDWBE( &header[6] );
217 i_pts += 1000; /* Avoid 0 pts */
219 /* header[11] -> flags 0x02 -> keyframe */
222 msg_Dbg( p_demux, "packet %d size=%d id=%d pts=%u",
223 p_sys->i_data_packets, i_size, i_id, (uint32_t)(i_pts/1000) );
226 p_sys->i_data_packets++;
228 stream_Read( p_demux->s, p_sys->buffer, i_size );
230 for( i = 0; i < p_sys->i_track; i++ )
232 if( p_sys->track[i]->i_id == i_id ) tk = p_sys->track[i];
237 msg_Warn( p_demux, "unknown track id(0x%x)", i_id );
240 es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b_selected );
242 if( tk->fmt.i_cat == VIDEO_ES && b_selected )
244 uint8_t *p = p_sys->buffer;
246 while( p < &p_sys->buffer[i_size - 2] )
255 if( (h&0xc0) == 0x40 )
259 i_len = &p_sys->buffer[i_size] - p;
265 i_subseq = (*p++)&0x7f;
267 i_len = (p[0] << 8)|p[1]; p += 2;
268 if( (i_len&0xc000) == 0 )
271 i_len |= (p[0] << 8)|p[1]; p += 2;
279 i_offset = (p[0] << 8)|p[1]; p += 2;
280 if( (i_offset&0xc000) == 0 )
283 i_offset |= (p[0] << 8)|p[1]; p += 2;
284 i_offset &= 0x3fffffff;
293 i_copy = i_len - i_offset;
294 if( i_copy > &p_sys->buffer[i_size] - p )
296 i_copy = &p_sys->buffer[i_size] - p;
298 else if( i_copy < 0 )
303 msg_Dbg( p_demux, " - len=%d offset=%d size=%d subseq=%d seqnum=%d",
304 i_len, i_offset, i_copy, i_subseq, i_seqnum );
306 if( (h&0xc0) == 0x80 )
308 /* last fragment -> fixes */
310 i_offset = i_len - i_copy;
311 msg_Dbg( p_demux, "last fixing copy=%d offset=%d",
316 ( tk->p_frame->i_dts != i_pts ||
317 tk->i_frame != i_len ) )
319 msg_Dbg( p_demux, "sending size=%d", tk->p_frame->i_buffer );
321 if( p_sys->i_pcr < tk->p_frame->i_dts )
323 p_sys->i_pcr = tk->p_frame->i_dts;
325 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
326 (int64_t)p_sys->i_pcr );
328 es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
334 if( (h&0xc0) != 0x80 && (h&0xc0) != 0x00 && !tk->p_frame )
342 if( tk->p_frame == NULL )
344 msg_Dbg( p_demux, "new frame size=%d", i_len );
346 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
350 memset( &tk->p_frame->p_buffer[8], 0, i_len );
351 tk->p_frame->i_dts = i_pts;
352 tk->p_frame->i_pts = i_pts;
354 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len; /* len */
355 ((uint32_t*)tk->p_frame->p_buffer)[1] = 0; /* chunk counts */
358 if( i_offset < tk->i_frame)
360 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
362 msg_Dbg( p_demux, "copying new buffer n=%d offset=%d copy=%d",
363 i_ck, i_offset, i_copy );
365 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
367 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
372 if( (h&0xc0) != 0x80 )
381 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
383 if( (h&0xc0) == 0x80 )
387 i_offset = i_len - i_offset;
389 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
390 memcpy( &tk->p_frame->p_buffer[i_offset+ 8], p, i_copy );
393 if( p_sys->i_pcr < tk->p_frame->i_dts )
395 p_sys->i_pcr = tk->p_frame->i_dts;
396 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
397 (int64_t)p_sys->i_pcr );
399 es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
407 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
408 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
412 if( (h&0xc0) != 0x00 )
417 if( !( p_frame = block_New( p_demux, i_copy + 8 + 8 ) ) )
421 p_frame->i_dts = i_pts;
422 p_frame->i_pts = i_pts;
424 ((uint32_t*)p_frame->p_buffer)[0] = i_copy;
425 ((uint32_t*)p_frame->p_buffer)[1] = 1;
426 ((uint32_t*)(p_frame->p_buffer+i_copy+8))[0] = 0;
427 memcpy( &p_frame->p_buffer[8], p, i_copy );
431 if( p_sys->i_pcr < p_frame->i_dts )
433 p_sys->i_pcr = p_frame->i_dts;
434 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
435 (int64_t)p_sys->i_pcr );
437 es_out_Send( p_demux->out, tk->p_es, p_frame );
443 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
447 memset( &tk->p_frame->p_buffer[8], 0, i_len );
448 tk->p_frame->i_dts = i_pts;
449 tk->p_frame->i_pts = i_pts;
451 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len; /* len */
452 ((uint32_t*)tk->p_frame->p_buffer)[1] = 1; /* chunk counts */
453 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[0] = i_offset;
454 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
461 else if( tk->fmt.i_cat == AUDIO_ES && b_selected )
464 if( p_sys->i_pcr < i_pts )
466 p_sys->i_pcr = i_pts;
467 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
468 (int64_t)p_sys->i_pcr );
471 if( tk->fmt.i_codec == VLC_FOURCC( 'm', 'p', '4', 'a' ) )
473 int i_sub = (p_sys->buffer[1] >> 4)&0x0f;
474 uint8_t *p_sub = &p_sys->buffer[2+2*i_sub];
477 for( i = 0; i < i_sub; i++ )
479 int i_sub_size = GetWBE( &p_sys->buffer[2+i*2]);
480 block_t *p_block = block_New( p_demux, i_sub_size );
483 memcpy( p_block->p_buffer, p_sub, i_sub_size );
487 p_block->i_pts = ( i == 0 ? i_pts : 0 );
489 es_out_Send( p_demux->out, tk->p_es, p_block );
493 else if( tk->fmt.i_codec == VLC_FOURCC( 'c', 'o', 'o', 'k' ) )
495 uint8_t *p_buf = p_sys->buffer;
496 int h = tk->i_subpacket_h;
497 int y = tk->i_subpacket / (tk->i_frame_size /tk->i_subpacket_size);
501 for( i = 0; i < tk->i_frame_size / tk->i_subpacket_size; i++ )
503 block_t *p_block = block_New( p_demux, tk->i_subpacket_size );
504 memcpy( p_block->p_buffer, p_buf, tk->i_subpacket_size );
505 p_buf += tk->i_subpacket_size;
507 p_block->i_dts = p_block->i_pts = i_pts;
508 tk->p_subpackets[(h*i+((h+1)/2)*(y&1)+(y>>1))] = p_block;
512 if( tk->i_subpacket == tk->i_subpackets )
514 for( i = 0; i < tk->i_subpackets; i++ )
516 block_t *p_block = tk->p_subpackets[i];
517 tk->p_subpackets[i] = 0;
519 if( i ) p_block->i_dts = p_block->i_pts = 0;
520 es_out_Send( p_demux->out, tk->p_es, p_block );
527 block_t *p_block = block_New( p_demux, i_size );
529 if( tk->fmt.i_codec == VLC_FOURCC( 'a', '5', '2', ' ' ) )
531 uint8_t *src = p_sys->buffer;
532 uint8_t *dst = p_block->p_buffer;
535 while( dst < &p_block->p_buffer[i_size- 1])
545 memcpy( p_block->p_buffer, p_sys->buffer, i_size );
547 p_block->i_dts = p_block->i_pts = i_pts;
548 es_out_Send( p_demux->out, tk->p_es, p_block );
556 /*****************************************************************************
558 *****************************************************************************/
559 static int Control( demux_t *p_demux, int i_query, va_list args )
562 demux_sys_t *p_sys = p_demux->p_sys;
568 case DEMUX_GET_POSITION:
569 pf = (double*) va_arg( args, double* );
570 i64 = stream_Size( p_demux->s );
573 *pf = (double)stream_Tell( p_demux->s ) / (double)i64;
580 case DEMUX_SET_POSITION:
581 f = (double) va_arg( args, double );
582 i64 = stream_Size( p_demux->s );
584 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
586 return stream_Seek( p_demux->s, (int64_t)(i64 * f) );
589 pi64 = (int64_t*)va_arg( args, int64_t * );
590 if( p_sys->i_mux_rate > 0 )
592 *pi64 = (int64_t)1000000 * ( stream_Tell( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
598 case DEMUX_GET_LENGTH:
599 pi64 = (int64_t*)va_arg( args, int64_t * );
600 if( p_sys->i_mux_rate > 0 )
602 *pi64 = (int64_t)1000000 * ( stream_Size( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
617 /*****************************************************************************
619 *****************************************************************************/
620 static int HeaderRead( demux_t *p_demux )
622 demux_sys_t *p_sys = p_demux->p_sys;
623 uint8_t header[100]; /* FIXME */
632 /* Read the header */
633 if( stream_Read( p_demux->s, header, 10 ) < 10 )
637 i_id = VLC_FOURCC( header[0], header[1], header[2], header[3] );
638 i_size = GetDWBE( &header[4] );
639 i_version = GetWBE( &header[8] );
641 msg_Dbg( p_demux, "object %4.4s size=%d version=%d",
642 (char*)&i_id, i_size, i_version );
646 msg_Dbg( p_demux, "invalid size for object %4.4s", (char*)&i_id );
649 i_skip = i_size - 10;
651 if( i_id == VLC_FOURCC('.','R','M','F') )
653 if( stream_Read( p_demux->s, header, 8 ) < 8 ) return VLC_EGENERIC;
654 msg_Dbg( p_demux, " - file version=0x%x num headers=%d",
655 GetDWBE( &header[0] ), GetDWBE( &header[4] ) );
659 else if( i_id == VLC_FOURCC('P','R','O','P') )
663 if( stream_Read(p_demux->s, header, 40) < 40 ) return VLC_EGENERIC;
665 msg_Dbg( p_demux, " - max bitrate=%d avg bitrate=%d",
666 GetDWBE(&header[0]), GetDWBE(&header[4]) );
667 msg_Dbg( p_demux, " - max packet size=%d avg bitrate=%d",
668 GetDWBE(&header[8]), GetDWBE(&header[12]) );
669 msg_Dbg( p_demux, " - packets count=%d", GetDWBE(&header[16]) );
670 msg_Dbg( p_demux, " - duration=%d ms", GetDWBE(&header[20]) );
671 msg_Dbg( p_demux, " - preroll=%d ms", GetDWBE(&header[24]) );
672 msg_Dbg( p_demux, " - index offset=%d", GetDWBE(&header[28]) );
673 msg_Dbg( p_demux, " - data offset=%d", GetDWBE(&header[32]) );
674 msg_Dbg( p_demux, " - num streams=%d", GetWBE(&header[36]) );
675 i_flags = GetWBE(&header[38]);
676 msg_Dbg( p_demux, " - flags=0x%x %s%s%s",
678 i_flags&0x0001 ? "PN_SAVE_ENABLED " : "",
679 i_flags&0x0002 ? "PN_PERFECT_PLAY_ENABLED " : "",
680 i_flags&0x0004 ? "PN_LIVE_BROADCAST" : "" );
683 else if( i_id == VLC_FOURCC('C','O','N','T') )
688 stream_Read( p_demux->s, header, 2 );
689 if( ( i_len = GetWBE( header ) ) > 0 )
691 psz = malloc( i_len + 1 );
692 stream_Read( p_demux->s, psz, i_len );
695 msg_Dbg( p_demux, " - title=`%s'", psz );
701 stream_Read( p_demux->s, header, 2 );
702 if( ( i_len = GetWBE( header ) ) > 0 )
704 psz = malloc( i_len + 1 );
705 stream_Read( p_demux->s, psz, i_len );
708 msg_Dbg( p_demux, " - author=`%s'", psz );
714 stream_Read( p_demux->s, header, 2 );
715 if( ( i_len = GetWBE( header ) ) > 0 )
717 psz = malloc( i_len + 1 );
718 stream_Read( p_demux->s, psz, i_len );
721 msg_Dbg( p_demux, " - copyright=`%s'", psz );
727 stream_Read( p_demux->s, header, 2 );
728 if( ( i_len = GetWBE( header ) ) > 0 )
730 psz = malloc( i_len + 1 );
731 stream_Read( p_demux->s, psz, i_len );
734 msg_Dbg( p_demux, " - comment=`%s'", psz );
740 else if( i_id == VLC_FOURCC('M','D','P','R') )
742 /* Media properties header */
747 if( stream_Read(p_demux->s, header, 30) < 30 ) return VLC_EGENERIC;
748 i_num = GetWBE( header );
749 msg_Dbg( p_demux, " - id=0x%x", i_num );
750 msg_Dbg( p_demux, " - max bitrate=%d avg bitrate=%d",
751 GetDWBE(&header[2]), GetDWBE(&header[6]) );
752 msg_Dbg( p_demux, " - max packet size=%d avg packet size=%d",
753 GetDWBE(&header[10]), GetDWBE(&header[14]) );
754 msg_Dbg( p_demux, " - start time=%d", GetDWBE(&header[18]) );
755 msg_Dbg( p_demux, " - preroll=%d", GetDWBE(&header[22]) );
756 msg_Dbg( p_demux, " - duration=%d", GetDWBE(&header[26]) );
759 stream_Read( p_demux->s, header, 1 );
760 if( ( i_len = header[0] ) > 0 )
762 psz = malloc( i_len + 1 );
763 stream_Read( p_demux->s, psz, i_len );
766 msg_Dbg( p_demux, " - name=`%s'", psz );
772 stream_Read( p_demux->s, header, 1 );
773 if( ( i_len = header[0] ) > 0 )
775 psz = malloc( i_len + 1 );
776 stream_Read( p_demux->s, psz, i_len );
779 msg_Dbg( p_demux, " - mime=`%s'", psz );
785 stream_Read( p_demux->s, header, 4 );
786 if( ( i_len = GetDWBE( header ) ) > 0 )
788 ReadCodecSpecificData( p_demux, i_len, i_num );
789 stream_Read( p_demux->s, NULL, i_len );
795 else if( i_id == VLC_FOURCC('D','A','T','A') )
797 stream_Read( p_demux->s, header, 8 );
799 p_sys->i_data_offset = stream_Tell( p_demux->s ) - 10;
800 p_sys->i_data_size = i_size;
801 p_sys->i_data_packets_count = GetDWBE( header );
802 p_sys->i_data_packets = 0;
803 p_sys->i_data_offset_next = GetDWBE( &header[4] );
805 msg_Dbg( p_demux, " - packets count=%d next=%u",
806 p_sys->i_data_packets_count,
807 (uint32_t)p_sys->i_data_offset_next );
809 /* we have finished the header */
815 msg_Dbg( p_demux, "unknown chunk" );
818 if( i_skip < 0 ) return VLC_EGENERIC;
819 stream_Read( p_demux->s, NULL, i_skip );
822 /* TODO read index if possible */
827 static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num )
829 demux_sys_t *p_sys = p_demux->p_sys;
834 msg_Dbg( p_demux, " - specific data len=%d", i_len );
835 if( stream_Peek(p_demux->s, &p_peek, i_len) < i_len ) return VLC_EGENERIC;
837 if( !strncmp( (char *)&p_peek[4], "VIDO", 4 ) )
839 es_format_Init( &fmt, VIDEO_ES, VLC_FOURCC( p_peek[8], p_peek[9],
840 p_peek[10], p_peek[11] ) );
841 fmt.video.i_width = GetWBE( &p_peek[12] );
842 fmt.video.i_height= GetWBE( &p_peek[14] );
845 fmt.p_extra = malloc( 8 );
846 ((uint32_t*)fmt.p_extra)[0] = GetDWBE( &p_peek[26] );
847 ((uint32_t*)fmt.p_extra)[1] = GetDWBE( &p_peek[30] );
849 msg_Dbg( p_demux, " - video 0x%08x 0x%08x",
850 ((uint32_t*)fmt.p_extra)[0], ((uint32_t*)fmt.p_extra)[1] );
852 if( GetDWBE( &p_peek[30] ) == 0x10003000 ||
853 GetDWBE( &p_peek[30] ) == 0x10003001 )
855 fmt.i_codec = VLC_FOURCC( 'R','V','1','3' );
857 else if( GetDWBE( &p_peek[30] ) == 0x20001000 ||
858 GetDWBE( &p_peek[30] ) == 0x20100001 ||
859 GetDWBE( &p_peek[30] ) == 0x20200002 )
861 fmt.i_codec = VLC_FOURCC( 'R','V','2','0' );
863 else if( GetDWBE( &p_peek[30] ) == 0x30202002 )
865 fmt.i_codec = VLC_FOURCC( 'R','V','3','0' );
867 else if( GetDWBE( &p_peek[30] ) == 0x40000000 )
869 fmt.i_codec = VLC_FOURCC( 'R','V','4','0' );
872 msg_Dbg( p_demux, " - video %4.4s %dx%d",
873 (char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height );
875 tk = malloc( sizeof( real_track_t ) );
880 tk->p_es = es_out_Add( p_demux->out, &fmt );
882 TAB_APPEND( p_sys->i_track, p_sys->track, tk );
884 else if( !strncmp( (char *)p_peek, ".ra\xfd", 4 ) )
886 int i_version = GetWBE( &p_peek[4] );
887 int i_header_size, i_flavor, i_coded_frame_size, i_subpacket_h;
888 int i_frame_size, i_subpacket_size;
890 msg_Dbg( p_demux, " - audio version=%d", i_version );
893 es_format_Init( &fmt, AUDIO_ES, 0 );
897 msg_Dbg( p_demux, " - audio version 3 is not supported!" );
901 p_peek += 2; /* 00 00 */
902 p_peek += 4; /* .ra4 or .ra5 */
903 p_peek += 4; /* ?? */
904 p_peek += 2; /* version (4 or 5) */
905 i_header_size = GetDWBE( p_peek ); p_peek += 4; /* header size */
906 i_flavor = GetWBE( p_peek ); p_peek += 2; /* codec flavor */
907 i_coded_frame_size = GetDWBE( p_peek ); p_peek += 4;
908 p_peek += 4; /* ?? */
909 p_peek += 4; /* ?? */
910 p_peek += 4; /* ?? */
911 i_subpacket_h = GetWBE( p_peek ); p_peek += 2;
912 i_frame_size = GetWBE( p_peek ); p_peek += 2;
913 i_subpacket_size = GetWBE( p_peek ); p_peek += 2;
914 p_peek += 2; /* ?? */
916 if( i_version == 5 ) p_peek += 6; /* 0, srate, 0 */
918 fmt.audio.i_rate = GetWBE( p_peek ); p_peek += 2;
919 p_peek += 2; /* ?? */
920 fmt.audio.i_bitspersample = GetWBE( p_peek ); p_peek += 2;
921 fmt.audio.i_channels = GetWBE( p_peek ); p_peek += 2;
922 fmt.audio.i_blockalign = i_frame_size;
926 p_peek += 4; /* genr */
927 memcpy( (char *)&fmt.i_codec, p_peek, 4 ); p_peek += 4;
931 p_peek += p_peek[0] + 1; /* descr 1 */
932 memcpy( (char *)&fmt.i_codec, p_peek + 1, 4 ); /* descr 2 */
933 p_peek += p_peek[0] + 1;
936 msg_Dbg( p_demux, " - audio codec=%4.4s channels=%d rate=%dHz",
937 (char*)&fmt.i_codec, fmt.audio.i_channels, fmt.audio.i_rate );
939 p_peek += 3; /* ?? */
940 if( i_version == 5 ) p_peek++;
942 switch( fmt.i_codec )
944 case VLC_FOURCC( 'd', 'n', 'e', 't' ):
945 fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
948 case VLC_FOURCC( 'r', 'a', 'a', 'c' ):
949 case VLC_FOURCC( 'r', 'a', 'c', 'p' ):
950 fmt.i_extra = GetDWBE( p_peek ); p_peek += 4;
951 if( fmt.i_extra > 0 ) { fmt.i_extra--; p_peek++; }
952 if( fmt.i_extra > 0 )
954 fmt.p_extra = malloc( fmt.i_extra );
955 memcpy( fmt.p_extra, p_peek, fmt.i_extra );
958 fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
961 case VLC_FOURCC('c','o','o','k'):
962 fmt.audio.i_blockalign = i_subpacket_size;
963 if( !(fmt.i_extra = GetDWBE( p_peek )) ) break;
964 fmt.p_extra = malloc( fmt.i_extra );
965 memcpy( fmt.p_extra, p_peek + 4, fmt.i_extra );
969 msg_Dbg( p_demux, " - unknown audio codec=%4.4s",
970 (char*)&fmt.i_codec );
974 if( fmt.i_codec != 0 )
976 msg_Dbg( p_demux, " - extra data=%d", fmt.i_extra );
978 tk = malloc( sizeof( real_track_t ) );
984 tk->i_subpacket_h = i_subpacket_h;
985 tk->i_subpacket_size = i_subpacket_size;
986 tk->i_coded_frame_size = i_coded_frame_size;
987 tk->i_frame_size = i_frame_size;
990 tk->i_subpackets = 0;
991 tk->p_subpackets = NULL;
992 if( fmt.i_codec == VLC_FOURCC('c','o','o','k') )
997 i_subpacket_h * i_frame_size / tk->i_subpacket_size;
999 malloc( tk->i_subpackets * sizeof(block_t *) );
1001 for( i = 0; i < tk->i_subpackets; i++ )
1002 tk->p_subpackets[i] = NULL;
1005 tk->p_es = es_out_Add( p_demux->out, &fmt );
1007 TAB_APPEND( p_sys->i_track, p_sys->track, tk );