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 *****************************************************************************/
66 int64_t i_data_offset;
68 uint32_t i_data_packets_count;
69 uint32_t i_data_packets;
70 int64_t i_data_offset_next;
75 uint8_t buffer[65536];
80 static int Demux( demux_t *p_demux );
81 static int Control( demux_t *p_demux, int i_query, va_list args );
83 static int HeaderRead( demux_t *p_demux );
84 static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num );
86 /*****************************************************************************
88 *****************************************************************************/
89 static int Open( vlc_object_t *p_this )
91 demux_t *p_demux = (demux_t*)p_this;
96 if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 ) return VLC_EGENERIC;
97 if( strncmp( (char *)p_peek, ".RMF", 4 ) ) return VLC_EGENERIC;
99 /* Fill p_demux field */
100 p_demux->pf_demux = Demux;
101 p_demux->pf_control = Control;
102 p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
103 memset( p_sys, 0, sizeof( demux_sys_t ) );
104 p_sys->i_data_offset = 0;
110 /* Parse the headers */
111 if( HeaderRead( p_demux ) )
114 msg_Err( p_demux, "invalid header" );
115 for( i = 0; i < p_sys->i_track; i++ )
117 real_track_t *tk = p_sys->track[i];
121 es_out_Del( p_demux->out, tk->p_es );
125 if( p_sys->i_track > 0 )
127 free( p_sys->track );
136 /*****************************************************************************
138 *****************************************************************************/
139 static void Close( vlc_object_t *p_this )
141 demux_t *p_demux = (demux_t*)p_this;
142 demux_sys_t *p_sys = p_demux->p_sys;
145 for( i = 0; i < p_sys->i_track; i++ )
147 real_track_t *tk = p_sys->track[i];
149 if( tk->p_frame ) block_Release( tk->p_frame );
150 es_format_Clean( &tk->fmt );
154 if( p_sys->i_track > 0 ) free( p_sys->track );
159 /*****************************************************************************
161 *****************************************************************************/
162 static int Demux( demux_t *p_demux )
164 demux_sys_t *p_sys = p_demux->p_sys;
170 real_track_t *tk = NULL;
171 vlc_bool_t b_selected;
173 if( p_sys->i_data_packets >= p_sys->i_data_packets_count &&
174 p_sys->i_data_packets_count )
176 if( stream_Read( p_demux->s, header, 18 ) < 18 )
180 if( strncmp( (char *)header, "DATA", 4 ) )
184 p_sys->i_data_offset = stream_Tell( p_demux->s ) - 18;
185 p_sys->i_data_size = GetDWBE( &header[4] );
186 p_sys->i_data_packets_count = GetDWBE( &header[10] );
187 p_sys->i_data_packets = 0;
188 p_sys->i_data_offset_next = GetDWBE( &header[14] );
190 msg_Dbg( p_demux, "entering new DATA packets=%d next=%u",
191 p_sys->i_data_packets_count,
192 (uint32_t)p_sys->i_data_offset_next );
195 if( stream_Read( p_demux->s, header, 12 ) < 12 ) return 0;
197 i_size = GetWBE( &header[2] ) - 12;
198 i_id = GetWBE( &header[4] );
199 i_pts = 1000 * GetDWBE( &header[6] );
200 i_pts += 1000; /* Avoid 0 pts */
202 /* header[11] -> flags 0x02 -> keyframe */
205 msg_Dbg( p_demux, "packet %d size=%d id=%d pts=%u",
206 p_sys->i_data_packets, i_size, i_id, (uint32_t)(i_pts/1000) );
209 p_sys->i_data_packets++;
211 stream_Read( p_demux->s, p_sys->buffer, i_size );
213 for( i = 0; i < p_sys->i_track; i++ )
215 if( p_sys->track[i]->i_id == i_id ) tk = p_sys->track[i];
220 msg_Warn( p_demux, "unknown track id(0x%x)", i_id );
223 es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b_selected );
225 if( tk->fmt.i_cat == VIDEO_ES && b_selected )
227 uint8_t *p = p_sys->buffer;
229 while( p < &p_sys->buffer[i_size - 2] )
238 if( (h&0xc0) == 0x40 )
242 i_len = &p_sys->buffer[i_size] - p;
248 i_subseq = (*p++)&0x7f;
250 i_len = (p[0] << 8)|p[1]; p += 2;
251 if( (i_len&0xc000) == 0 )
254 i_len |= (p[0] << 8)|p[1]; p += 2;
262 i_offset = (p[0] << 8)|p[1]; p += 2;
263 if( (i_offset&0xc000) == 0 )
266 i_offset |= (p[0] << 8)|p[1]; p += 2;
267 i_offset &= 0x3fffffff;
276 i_copy = i_len - i_offset;
277 if( i_copy > &p_sys->buffer[i_size] - p )
279 i_copy = &p_sys->buffer[i_size] - p;
281 else if( i_copy < 0 )
286 msg_Dbg( p_demux, " - len=%d offset=%d size=%d subseq=%d seqnum=%d",
287 i_len, i_offset, i_copy, i_subseq, i_seqnum );
289 if( (h&0xc0) == 0x80 )
291 /* last fragment -> fixes */
293 i_offset = i_len - i_copy;
294 msg_Dbg( p_demux, "last fixing copy=%d offset=%d",
299 ( tk->p_frame->i_dts != i_pts ||
300 tk->i_frame != i_len ) )
302 msg_Dbg( p_demux, "sending size=%d", tk->p_frame->i_buffer );
304 if( p_sys->i_pcr < tk->p_frame->i_dts )
306 p_sys->i_pcr = tk->p_frame->i_dts;
308 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
309 (int64_t)p_sys->i_pcr );
311 es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
317 if( (h&0xc0) != 0x80 && (h&0xc0) != 0x00 && !tk->p_frame )
325 if( tk->p_frame == NULL )
327 msg_Dbg( p_demux, "new frame size=%d", i_len );
329 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
333 memset( &tk->p_frame->p_buffer[8], 0, i_len );
334 tk->p_frame->i_dts = i_pts;
335 tk->p_frame->i_pts = i_pts;
337 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len; /* len */
338 ((uint32_t*)tk->p_frame->p_buffer)[1] = 0; /* chunk counts */
341 if( i_offset < tk->i_frame)
343 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
345 msg_Dbg( p_demux, "copying new buffer n=%d offset=%d copy=%d",
346 i_ck, i_offset, i_copy );
348 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
350 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
355 if( (h&0xc0) != 0x80 )
364 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
366 if( (h&0xc0) == 0x80 )
370 i_offset = i_len - i_offset;
372 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
373 memcpy( &tk->p_frame->p_buffer[i_offset+ 8], p, i_copy );
376 if( p_sys->i_pcr < tk->p_frame->i_dts )
378 p_sys->i_pcr = tk->p_frame->i_dts;
379 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
380 (int64_t)p_sys->i_pcr );
382 es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
390 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
391 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
395 if( (h&0xc0) != 0x00 )
400 if( !( p_frame = block_New( p_demux, i_copy + 8 + 8 ) ) )
404 p_frame->i_dts = i_pts;
405 p_frame->i_pts = i_pts;
407 ((uint32_t*)p_frame->p_buffer)[0] = i_copy;
408 ((uint32_t*)p_frame->p_buffer)[1] = 1;
409 ((uint32_t*)(p_frame->p_buffer+i_copy+8))[0] = 0;
410 memcpy( &p_frame->p_buffer[8], p, i_copy );
414 if( p_sys->i_pcr < p_frame->i_dts )
416 p_sys->i_pcr = p_frame->i_dts;
417 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
418 (int64_t)p_sys->i_pcr );
420 es_out_Send( p_demux->out, tk->p_es, p_frame );
426 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
430 memset( &tk->p_frame->p_buffer[8], 0, i_len );
431 tk->p_frame->i_dts = i_pts;
432 tk->p_frame->i_pts = i_pts;
434 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len; /* len */
435 ((uint32_t*)tk->p_frame->p_buffer)[1] = 1; /* chunk counts */
436 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[0] = i_offset;
437 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
444 else if( tk->fmt.i_cat == AUDIO_ES && b_selected )
447 if( p_sys->i_pcr < i_pts )
449 p_sys->i_pcr = i_pts;
450 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
451 (int64_t)p_sys->i_pcr );
454 if( tk->fmt.i_codec == VLC_FOURCC( 'm', 'p', '4', 'a' ) )
456 int i_sub = (p_sys->buffer[1] >> 4)&0x0f;
457 uint8_t *p_sub = &p_sys->buffer[2+2*i_sub];
460 for( i = 0; i < i_sub; i++ )
462 int i_sub_size = GetWBE( &p_sys->buffer[2+i*2]);
463 block_t *p_block = block_New( p_demux, i_sub_size );
466 memcpy( p_block->p_buffer, p_sub, i_sub_size );
470 p_block->i_pts = ( i == 0 ? i_pts : 0 );
472 es_out_Send( p_demux->out, tk->p_es, p_block );
478 block_t *p_block = block_New( p_demux, i_size );
480 if( tk->fmt.i_codec == VLC_FOURCC( 'a', '5', '2', ' ' ) )
482 uint8_t *src = p_sys->buffer;
483 uint8_t *dst = p_block->p_buffer;
486 while( dst < &p_block->p_buffer[i_size- 1])
496 memcpy( p_block->p_buffer, p_sys->buffer, i_size );
499 p_block->i_pts = i_pts;
501 es_out_Send( p_demux->out, tk->p_es, p_block );
509 /*****************************************************************************
511 *****************************************************************************/
512 static int Control( demux_t *p_demux, int i_query, va_list args )
515 demux_sys_t *p_sys = p_demux->p_sys;
521 case DEMUX_GET_POSITION:
522 pf = (double*) va_arg( args, double* );
523 i64 = stream_Size( p_demux->s );
526 *pf = (double)stream_Tell( p_demux->s ) / (double)i64;
533 case DEMUX_SET_POSITION:
534 f = (double) va_arg( args, double );
535 i64 = stream_Size( p_demux->s );
537 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
539 return stream_Seek( p_demux->s, (int64_t)(i64 * f) );
542 pi64 = (int64_t*)va_arg( args, int64_t * );
543 if( p_sys->i_mux_rate > 0 )
545 *pi64 = (int64_t)1000000 * ( stream_Tell( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
551 case DEMUX_GET_LENGTH:
552 pi64 = (int64_t*)va_arg( args, int64_t * );
553 if( p_sys->i_mux_rate > 0 )
555 *pi64 = (int64_t)1000000 * ( stream_Size( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
570 /*****************************************************************************
572 *****************************************************************************/
573 static int HeaderRead( demux_t *p_demux )
575 demux_sys_t *p_sys = p_demux->p_sys;
576 uint8_t header[100]; /* FIXME */
585 /* Read the header */
586 if( stream_Read( p_demux->s, header, 10 ) < 10 )
590 i_id = VLC_FOURCC( header[0], header[1], header[2], header[3] );
591 i_size = GetDWBE( &header[4] );
592 i_version = GetWBE( &header[8] );
594 msg_Dbg( p_demux, "object %4.4s size=%d version=%d",
595 (char*)&i_id, i_size, i_version );
599 msg_Dbg( p_demux, "invalid size for object %4.4s", (char*)&i_id );
602 i_skip = i_size - 10;
604 if( i_id == VLC_FOURCC('.','R','M','F') )
606 if( stream_Read( p_demux->s, header, 8 ) < 8 ) return VLC_EGENERIC;
607 msg_Dbg( p_demux, " - file version=0x%x num headers=%d",
608 GetDWBE( &header[0] ), GetDWBE( &header[4] ) );
612 else if( i_id == VLC_FOURCC('P','R','O','P') )
616 if( stream_Read(p_demux->s, header, 40) < 40 ) return VLC_EGENERIC;
618 msg_Dbg( p_demux, " - max bitrate=%d avg bitrate=%d",
619 GetDWBE(&header[0]), GetDWBE(&header[4]) );
620 msg_Dbg( p_demux, " - max packet size=%d avg bitrate=%d",
621 GetDWBE(&header[8]), GetDWBE(&header[12]) );
622 msg_Dbg( p_demux, " - packets count=%d", GetDWBE(&header[16]) );
623 msg_Dbg( p_demux, " - duration=%d ms", GetDWBE(&header[20]) );
624 msg_Dbg( p_demux, " - preroll=%d ms", GetDWBE(&header[24]) );
625 msg_Dbg( p_demux, " - index offset=%d", GetDWBE(&header[28]) );
626 msg_Dbg( p_demux, " - data offset=%d", GetDWBE(&header[32]) );
627 msg_Dbg( p_demux, " - num streams=%d", GetWBE(&header[36]) );
628 i_flags = GetWBE(&header[38]);
629 msg_Dbg( p_demux, " - flags=0x%x %s%s%s",
631 i_flags&0x0001 ? "PN_SAVE_ENABLED " : "",
632 i_flags&0x0002 ? "PN_PERFECT_PLAY_ENABLED " : "",
633 i_flags&0x0004 ? "PN_LIVE_BROADCAST" : "" );
636 else if( i_id == VLC_FOURCC('C','O','N','T') )
641 stream_Read( p_demux->s, header, 2 );
642 if( ( i_len = GetWBE( header ) ) > 0 )
644 psz = malloc( i_len + 1 );
645 stream_Read( p_demux->s, psz, i_len );
648 msg_Dbg( p_demux, " - title=`%s'", psz );
654 stream_Read( p_demux->s, header, 2 );
655 if( ( i_len = GetWBE( header ) ) > 0 )
657 psz = malloc( i_len + 1 );
658 stream_Read( p_demux->s, psz, i_len );
661 msg_Dbg( p_demux, " - author=`%s'", psz );
667 stream_Read( p_demux->s, header, 2 );
668 if( ( i_len = GetWBE( header ) ) > 0 )
670 psz = malloc( i_len + 1 );
671 stream_Read( p_demux->s, psz, i_len );
674 msg_Dbg( p_demux, " - copyright=`%s'", psz );
680 stream_Read( p_demux->s, header, 2 );
681 if( ( i_len = GetWBE( header ) ) > 0 )
683 psz = malloc( i_len + 1 );
684 stream_Read( p_demux->s, psz, i_len );
687 msg_Dbg( p_demux, " - comment=`%s'", psz );
693 else if( i_id == VLC_FOURCC('M','D','P','R') )
695 /* Media properties header */
700 if( stream_Read(p_demux->s, header, 30) < 30 ) return VLC_EGENERIC;
701 i_num = GetWBE( header );
702 msg_Dbg( p_demux, " - id=0x%x", i_num );
703 msg_Dbg( p_demux, " - max bitrate=%d avg bitrate=%d",
704 GetDWBE(&header[2]), GetDWBE(&header[6]) );
705 msg_Dbg( p_demux, " - max packet size=%d avg packet size=%d",
706 GetDWBE(&header[10]), GetDWBE(&header[14]) );
707 msg_Dbg( p_demux, " - start time=%d", GetDWBE(&header[18]) );
708 msg_Dbg( p_demux, " - preroll=%d", GetDWBE(&header[22]) );
709 msg_Dbg( p_demux, " - duration=%d", GetDWBE(&header[26]) );
712 stream_Read( p_demux->s, header, 1 );
713 if( ( i_len = header[0] ) > 0 )
715 psz = malloc( i_len + 1 );
716 stream_Read( p_demux->s, psz, i_len );
719 msg_Dbg( p_demux, " - name=`%s'", psz );
725 stream_Read( p_demux->s, header, 1 );
726 if( ( i_len = header[0] ) > 0 )
728 psz = malloc( i_len + 1 );
729 stream_Read( p_demux->s, psz, i_len );
732 msg_Dbg( p_demux, " - mime=`%s'", psz );
738 stream_Read( p_demux->s, header, 4 );
739 if( ( i_len = GetDWBE( header ) ) > 0 )
741 ReadCodecSpecificData( p_demux, i_len, i_num );
742 stream_Read( p_demux->s, NULL, i_len );
748 else if( i_id == VLC_FOURCC('D','A','T','A') )
750 stream_Read( p_demux->s, header, 8 );
752 p_sys->i_data_offset = stream_Tell( p_demux->s ) - 10;
753 p_sys->i_data_size = i_size;
754 p_sys->i_data_packets_count = GetDWBE( header );
755 p_sys->i_data_packets = 0;
756 p_sys->i_data_offset_next = GetDWBE( &header[4] );
758 msg_Dbg( p_demux, " - packets count=%d next=%u",
759 p_sys->i_data_packets_count,
760 (uint32_t)p_sys->i_data_offset_next );
762 /* we have finished the header */
768 msg_Dbg( p_demux, "unknown chunk" );
771 if( i_skip < 0 ) return VLC_EGENERIC;
772 stream_Read( p_demux->s, NULL, i_skip );
775 /* TODO read index if possible */
780 static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num )
782 demux_sys_t *p_sys = p_demux->p_sys;
787 msg_Dbg( p_demux, " - specific data len=%d", i_len );
788 if( stream_Peek(p_demux->s, &p_peek, i_len) < i_len ) return VLC_EGENERIC;
790 if( !strncmp( (char *)&p_peek[4], "VIDO", 4 ) )
792 es_format_Init( &fmt, VIDEO_ES, VLC_FOURCC( p_peek[8], p_peek[9],
793 p_peek[10], p_peek[11] ) );
794 fmt.video.i_width = GetWBE( &p_peek[12] );
795 fmt.video.i_height= GetWBE( &p_peek[14] );
798 fmt.p_extra = malloc( 8 );
799 ((uint32_t*)fmt.p_extra)[0] = GetDWBE( &p_peek[26] );
800 ((uint32_t*)fmt.p_extra)[1] = GetDWBE( &p_peek[30] );
802 msg_Dbg( p_demux, " - video 0x%08x 0x%08x",
803 ((uint32_t*)fmt.p_extra)[0], ((uint32_t*)fmt.p_extra)[1] );
805 if( GetDWBE( &p_peek[30] ) == 0x10003000 ||
806 GetDWBE( &p_peek[30] ) == 0x10003001 )
808 fmt.i_codec = VLC_FOURCC( 'R','V','1','3' );
811 msg_Dbg( p_demux, " - video %4.4s %dx%d",
812 (char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height );
814 tk = malloc( sizeof( real_track_t ) );
819 tk->p_es = es_out_Add( p_demux->out, &fmt );
821 TAB_APPEND( p_sys->i_track, p_sys->track, tk );
823 else if( !strncmp( (char *)p_peek, ".ra\xfd", 4 ) )
825 int i_version = GetWBE( &p_peek[4] );
826 int i_header_size, i_flavor, i_coded_frame_size, i_subpacket_h;
827 int i_frame_size, i_subpacket_size;
829 msg_Dbg( p_demux, " - audio version=%d", i_version );
832 es_format_Init( &fmt, AUDIO_ES, 0 );
836 msg_Dbg( p_demux, " - audio version 3 is not supported!" );
840 p_peek += 2; /* 00 00 */
841 p_peek += 4; /* .ra4 or .ra5 */
842 p_peek += 4; /* ?? */
843 p_peek += 2; /* version (4 or 5) */
844 i_header_size = GetDWBE( p_peek ); p_peek += 4; /* header size */
845 i_flavor = GetWBE( p_peek ); p_peek += 2; /* codec flavor */
846 i_coded_frame_size = GetDWBE( p_peek ); p_peek += 4;
847 p_peek += 4; /* ?? */
848 p_peek += 4; /* ?? */
849 p_peek += 4; /* ?? */
850 i_subpacket_h = GetWBE( p_peek ); p_peek += 2;
851 i_frame_size = GetWBE( p_peek ); p_peek += 2;
852 i_subpacket_size = GetWBE( p_peek ); p_peek += 2;
853 p_peek += 2; /* ?? */
855 if( i_version == 5 ) p_peek += 6; /* 0, srate, 0 */
857 fmt.audio.i_rate = GetWBE( p_peek ); p_peek += 2;
858 p_peek += 2; /* ?? */
859 fmt.audio.i_bitspersample = GetWBE( p_peek ); p_peek += 2;
860 fmt.audio.i_channels = GetWBE( p_peek ); p_peek += 2;
861 fmt.audio.i_blockalign = i_frame_size;
865 p_peek += 4; /* genr */
866 memcpy( (char *)&fmt.i_codec, p_peek, 4 ); p_peek += 4;
870 p_peek += p_peek[0] + 1; /* descr 1 */
871 memcpy( (char *)&fmt.i_codec, p_peek + 1, 4 ); /* descr 2 */
872 p_peek += p_peek[0] + 1;
875 msg_Dbg( p_demux, " - audio codec=%4.4s channels=%d rate=%dHz",
876 (char*)&fmt.i_codec, fmt.audio.i_channels, fmt.audio.i_rate );
878 p_peek += 3; /* ?? */
879 if( i_version == 5 ) p_peek++;
881 switch( fmt.i_codec )
883 case VLC_FOURCC( 'd', 'n', 'e', 't' ):
884 fmt.i_codec = VLC_FOURCC( 'a', '5', '2', ' ' );
887 case VLC_FOURCC( 'r', 'a', 'a', 'c' ):
888 case VLC_FOURCC( 'r', 'a', 'c', 'p' ):
889 fmt.i_extra = GetDWBE( p_peek ); p_peek += 4;
890 if( fmt.i_extra > 0 ) { fmt.i_extra--; p_peek++; }
891 if( fmt.i_extra > 0 )
893 fmt.p_extra = malloc( fmt.i_extra );
894 memcpy( fmt.p_extra, p_peek, fmt.i_extra );
897 fmt.i_codec = VLC_FOURCC( 'm', 'p', '4', 'a' );
900 case VLC_FOURCC('c','o','o','k'):
901 fmt.i_extra = GetDWBE( p_peek ); p_peek += 4;
902 fmt.p_extra = malloc( fmt.i_extra + 10 );
904 ((short*)(fmt.p_extra))[0] = i_subpacket_size;
905 ((short*)(fmt.p_extra))[1] = i_subpacket_h;
906 ((short*)(fmt.p_extra))[2] = i_flavor;
907 ((short*)(fmt.p_extra))[3] = i_coded_frame_size;
908 ((short*)(fmt.p_extra))[4] = fmt.i_extra;
909 if( fmt.i_extra ) memcpy( fmt.p_extra + 10, p_peek, fmt.i_extra );
914 msg_Dbg( p_demux, " - unknown audio codec=%4.4s",
915 (char*)&fmt.i_codec );
919 if( fmt.i_codec != 0 )
921 msg_Dbg( p_demux, " - extra data=%d", fmt.i_extra );
923 tk = malloc( sizeof( real_track_t ) );
928 tk->p_es = es_out_Add( p_demux->out, &fmt );
930 TAB_APPEND( p_sys->i_track, p_sys->track, tk );