1 /*****************************************************************************
2 * real.c: Real demuxer.
3 *****************************************************************************
4 * Copyright (C) 2004, 2006-2007 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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
25 * Status of this demuxer:
29 * version v3 w/ 14_4/lpcJ is ok.
30 * version v4/5: - atrac3 is ok.
32 * - raac, racp are ok.
33 * - dnet is twisted "The byte order of the data is reversed
35 * - 28_8 seem problematic.
36 * - sipr should be fine, but our decoder suxx :)
37 * - ralf is unsupported, but hardly any sample exist.
38 * - mp3 is unsupported, one sample exists...
45 /*****************************************************************************
47 *****************************************************************************/
51 #include <vlc_demux.h>
52 #include <vlc_charset.h>
55 /*****************************************************************************
57 *****************************************************************************/
58 static int Open ( vlc_object_t * );
59 static void Close ( vlc_object_t * );
62 set_description( _("Real demuxer" ) );
63 set_capability( "demux2", 15 );
64 set_category( CAT_INPUT );
65 set_subcategory( SUBCAT_INPUT_DEMUX );
66 set_callbacks( Open, Close );
67 add_shortcut( "real" );
71 /*****************************************************************************
73 *****************************************************************************/
87 int i_coded_frame_size;
92 block_t **p_subpackets;
99 int64_t i_data_offset;
101 uint32_t i_data_packets_count;
102 uint32_t i_data_packets;
103 int64_t i_data_offset_next;
111 char* psz_description;
114 real_track_t **track;
116 uint8_t buffer[65536];
121 static int Demux( demux_t *p_demux );
122 static int Control( demux_t *p_demux, int i_query, va_list args );
124 static int HeaderRead( demux_t *p_demux );
125 static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num );
127 /*****************************************************************************
129 *****************************************************************************/
130 static int Open( vlc_object_t *p_this )
132 demux_t *p_demux = (demux_t*)p_this;
135 const uint8_t *p_peek;
137 if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 ) return VLC_EGENERIC;
138 if( !memcmp( p_peek, ".ra", 3 ) )
140 msg_Warn( p_demux, ".ra files unsuported" );
143 if( memcmp( p_peek, ".RMF", 4 ) ) return VLC_EGENERIC;
145 /* Fill p_demux field */
146 p_demux->pf_demux = Demux;
147 p_demux->pf_control = Control;
148 p_demux->p_sys = p_sys = malloc( sizeof( demux_sys_t ) );
149 memset( p_sys, 0, sizeof( demux_sys_t ) );
150 p_sys->i_data_offset = 0;
156 /* Parse the headers */
157 if( HeaderRead( p_demux ) )
160 msg_Err( p_demux, "invalid header" );
161 for( i = 0; i < p_sys->i_track; i++ )
163 real_track_t *tk = p_sys->track[i];
167 es_out_Del( p_demux->out, tk->p_es );
171 if( p_sys->i_track > 0 )
173 free( p_sys->track );
182 /*****************************************************************************
184 *****************************************************************************/
185 static void Close( vlc_object_t *p_this )
187 demux_t *p_demux = (demux_t*)p_this;
188 demux_sys_t *p_sys = p_demux->p_sys;
191 for( i = 0; i < p_sys->i_track; i++ )
193 real_track_t *tk = p_sys->track[i];
194 int j = tk->i_subpackets;
196 if( tk->p_frame ) block_Release( tk->p_frame );
197 es_format_Clean( &tk->fmt );
201 if( tk->p_subpackets[ j ] )
202 block_Release( tk->p_subpackets[ j ] );
204 if( tk->i_subpackets ) free( tk->p_subpackets );
209 if( p_sys->psz_title ) free( p_sys->psz_title );
210 if( p_sys->psz_artist ) free( p_sys->psz_artist );
211 if( p_sys->psz_copyright ) free( p_sys->psz_copyright );
212 if( p_sys->psz_description ) free( p_sys->psz_description );
214 if( p_sys->i_track > 0 ) free( p_sys->track );
219 /*****************************************************************************
221 *****************************************************************************/
222 static int Demux( demux_t *p_demux )
224 demux_sys_t *p_sys = p_demux->p_sys;
226 int i_size, i_id, i_flags, i;
228 real_track_t *tk = NULL;
229 vlc_bool_t b_selected;
231 if( p_sys->i_data_packets >= p_sys->i_data_packets_count &&
232 p_sys->i_data_packets_count )
234 if( stream_Read( p_demux->s, header, 18 ) < 18 )
238 if( strncmp( (char *)header, "DATA", 4 ) )
242 p_sys->i_data_offset = stream_Tell( p_demux->s ) - 18;
243 p_sys->i_data_size = GetDWBE( &header[4] );
244 p_sys->i_data_packets_count = GetDWBE( &header[10] );
245 p_sys->i_data_packets = 0;
246 p_sys->i_data_offset_next = GetDWBE( &header[14] );
248 msg_Dbg( p_demux, "entering new DATA packets=%d next=%u",
249 p_sys->i_data_packets_count,
250 (uint32_t)p_sys->i_data_offset_next );
253 if( stream_Read( p_demux->s, header, 12 ) < 12 ) return 0;
255 i_size = GetWBE( &header[2] ) - 12;
256 i_id = GetWBE( &header[4] );
257 i_pts = 1000 * GetDWBE( &header[6] );
258 i_pts += 1000; /* Avoid 0 pts */
259 i_flags= header[11]; /* flags 0x02 -> keyframe */
262 msg_Dbg( p_demux, "packet %d size=%d id=%d pts=%u",
263 p_sys->i_data_packets, i_size, i_id, (uint32_t)(i_pts/1000) );
266 p_sys->i_data_packets++;
268 stream_Read( p_demux->s, p_sys->buffer, i_size );
270 for( i = 0; i < p_sys->i_track; i++ )
272 if( p_sys->track[i]->i_id == i_id ) tk = p_sys->track[i];
277 msg_Warn( p_demux, "unknown track id(0x%x)", i_id );
280 es_out_Control( p_demux->out, ES_OUT_GET_ES_STATE, tk->p_es, &b_selected );
282 if( tk->fmt.i_cat == VIDEO_ES && b_selected )
284 uint8_t *p = p_sys->buffer;
286 while( p < &p_sys->buffer[i_size - 2] )
295 if( (h&0xc0) == 0x40 )
299 i_len = &p_sys->buffer[i_size] - p;
305 i_subseq = (*p++)&0x7f;
307 i_len = (p[0] << 8)|p[1]; p += 2;
308 if( (i_len&0xc000) == 0 )
311 i_len |= (p[0] << 8)|p[1]; p += 2;
319 i_offset = (p[0] << 8)|p[1]; p += 2;
320 if( (i_offset&0xc000) == 0 )
323 i_offset |= (p[0] << 8)|p[1]; p += 2;
324 i_offset &= 0x3fffffff;
333 i_copy = i_len - i_offset;
334 if( i_copy > &p_sys->buffer[i_size] - p )
336 i_copy = &p_sys->buffer[i_size] - p;
338 else if( i_copy < 0 )
343 msg_Dbg( p_demux, " - len=%d offset=%d size=%d subseq=%d seqnum=%d",
344 i_len, i_offset, i_copy, i_subseq, i_seqnum );
346 if( (h&0xc0) == 0x80 )
348 /* last fragment -> fixes */
350 i_offset = i_len - i_copy;
351 msg_Dbg( p_demux, "last fixing copy=%d offset=%d",
356 ( tk->p_frame->i_dts != i_pts ||
357 tk->i_frame != i_len ) )
359 msg_Dbg( p_demux, "sending size=%d", tk->p_frame->i_buffer );
361 if( p_sys->i_pcr < tk->p_frame->i_dts )
363 p_sys->i_pcr = tk->p_frame->i_dts;
365 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
366 (int64_t)p_sys->i_pcr );
368 es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
374 if( (h&0xc0) != 0x80 && (h&0xc0) != 0x00 && !tk->p_frame )
382 if( tk->p_frame == NULL )
384 msg_Dbg( p_demux, "new frame size=%d", i_len );
386 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
390 memset( &tk->p_frame->p_buffer[8], 0, i_len );
391 tk->p_frame->i_dts = i_pts;
392 tk->p_frame->i_pts = i_pts;
394 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len; /* len */
395 ((uint32_t*)tk->p_frame->p_buffer)[1] = 0; /* chunk counts */
398 if( i_offset < tk->i_frame)
400 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
402 msg_Dbg( p_demux, "copying new buffer n=%d offset=%d copy=%d",
403 i_ck, i_offset, i_copy );
405 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
407 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
412 if( (h&0xc0) != 0x80 )
421 int i_ck = ((uint32_t*)tk->p_frame->p_buffer)[1]++;
423 if( (h&0xc0) == 0x80 )
427 i_offset = i_len - i_offset;
429 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
430 memcpy( &tk->p_frame->p_buffer[i_offset+ 8], p, i_copy );
433 if( p_sys->i_pcr < tk->p_frame->i_dts )
435 p_sys->i_pcr = tk->p_frame->i_dts;
436 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
437 (int64_t)p_sys->i_pcr );
439 es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
447 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[i_ck] = i_offset;
448 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
452 if( (h&0xc0) != 0x00 )
457 if( !( p_frame = block_New( p_demux, i_copy + 8 + 8 ) ) )
461 p_frame->i_dts = i_pts;
462 p_frame->i_pts = i_pts;
464 ((uint32_t*)p_frame->p_buffer)[0] = i_copy;
465 ((uint32_t*)p_frame->p_buffer)[1] = 1;
466 ((uint32_t*)(p_frame->p_buffer+i_copy+8))[0] = 0;
467 memcpy( &p_frame->p_buffer[8], p, i_copy );
471 if( p_sys->i_pcr < p_frame->i_dts )
473 p_sys->i_pcr = p_frame->i_dts;
474 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
475 (int64_t)p_sys->i_pcr );
477 es_out_Send( p_demux->out, tk->p_es, p_frame );
483 if( !( tk->p_frame = block_New( p_demux, i_len + 8 + 1000) ) )
487 memset( &tk->p_frame->p_buffer[8], 0, i_len );
488 tk->p_frame->i_dts = i_pts;
489 tk->p_frame->i_pts = i_pts;
491 ((uint32_t*)tk->p_frame->p_buffer)[0] = i_len; /* len */
492 ((uint32_t*)tk->p_frame->p_buffer)[1] = 1; /* chunk counts */
493 ((uint32_t*)(tk->p_frame->p_buffer+i_len+8))[0] = i_offset;
494 memcpy( &tk->p_frame->p_buffer[i_offset + 8], p, i_copy );
501 else if( tk->fmt.i_cat == AUDIO_ES && b_selected )
504 if( p_sys->i_pcr < i_pts )
506 p_sys->i_pcr = i_pts;
507 es_out_Control( p_demux->out, ES_OUT_SET_PCR,
508 (int64_t)p_sys->i_pcr );
511 if( tk->fmt.i_codec == VLC_FOURCC( 'm','p','4','a' ) )
513 int i_sub = (p_sys->buffer[1] >> 4)&0x0f;
514 uint8_t *p_sub = &p_sys->buffer[2+2*i_sub];
517 for( i = 0; i < i_sub; i++ )
519 int i_sub_size = GetWBE( &p_sys->buffer[2+i*2]);
520 block_t *p_block = block_New( p_demux, i_sub_size );
523 memcpy( p_block->p_buffer, p_sub, i_sub_size );
527 p_block->i_pts = ( i == 0 ? i_pts : 0 );
529 es_out_Send( p_demux->out, tk->p_es, p_block );
533 else if( tk->fmt.i_codec == VLC_FOURCC( 'c', 'o', 'o', 'k' ) ||
534 tk->fmt.i_codec == VLC_FOURCC( 'a', 't', 'r', 'c') ||
535 tk->fmt.i_codec == VLC_FOURCC( 's', 'i', 'p', 'r') ||
536 tk->fmt.i_codec == VLC_FOURCC( '2', '8', '_', '8') )
538 uint8_t *p_buf = p_sys->buffer;
539 int y = tk->i_subpacket / ( tk->i_frame_size /tk->i_subpacket_size);
543 if( i_flags & 2 ) y = tk->i_subpacket = 0;
545 if( tk->fmt.i_codec == VLC_FOURCC( 'c', 'o', 'o', 'k' ) ||
546 tk->fmt.i_codec == VLC_FOURCC( 'a', 't', 'r', 'c' ))
547 for( i = 0; i < tk->i_frame_size / tk->i_subpacket_size; i++ )
549 block_t *p_block = block_New( p_demux, tk->i_subpacket_size );
550 memcpy( p_block->p_buffer, p_buf, tk->i_subpacket_size );
551 p_buf += tk->i_subpacket_size;
553 i_index = tk->i_subpacket_h * i +
554 ((tk->i_subpacket_h + 1) / 2) * (y&1) + (y>>1);
556 p_block->i_dts = p_block->i_pts = i_pts;
557 tk->p_subpackets[i_index] = p_block;
561 if( tk->fmt.i_codec == VLC_FOURCC( '2', '8', '_', '8' ) ||
562 tk->fmt.i_codec == VLC_FOURCC( 's', 'i', 'p', 'r' ) )
563 for( i = 0; i < tk->i_subpacket_h / 2; i++ )
565 block_t *p_block = block_New( p_demux, tk->i_coded_frame_size);
566 memcpy( p_block->p_buffer, p_buf, tk->i_coded_frame_size );
567 p_buf += tk->i_coded_frame_size;
569 i_index = (i * 2 * tk->i_frame_size) /
570 tk->i_coded_frame_size + y;
572 p_block->i_dts = p_block->i_pts = i_pts;
573 tk->p_subpackets[i_index] = p_block;
577 while( tk->i_out_subpacket != tk->i_subpackets &&
578 tk->p_subpackets[tk->i_out_subpacket] )
580 block_t *p_block = tk->p_subpackets[tk->i_out_subpacket];
581 tk->p_subpackets[tk->i_out_subpacket] = 0;
583 if( tk->i_out_subpacket ) p_block->i_dts = p_block->i_pts = 0;
584 es_out_Send( p_demux->out, tk->p_es, p_block );
586 tk->i_out_subpacket++;
589 if( tk->i_subpacket == tk->i_subpackets &&
590 tk->i_out_subpacket != tk->i_subpackets )
592 msg_Warn( p_demux, "i_subpacket != i_out_subpacket, "
593 "this shouldn't happen" );
596 if( tk->i_subpacket == tk->i_subpackets )
599 tk->i_out_subpacket = 0;
604 block_t *p_block = block_New( p_demux, i_size );
606 if( tk->fmt.i_codec == VLC_FOURCC( 'a', '5', '2', ' ' ) )
608 uint8_t *src = p_sys->buffer;
609 uint8_t *dst = p_block->p_buffer;
612 while( dst < &p_block->p_buffer[i_size- 1])
622 memcpy( p_block->p_buffer, p_sys->buffer, i_size );
624 p_block->i_dts = p_block->i_pts = i_pts;
625 es_out_Send( p_demux->out, tk->p_es, p_block );
633 /*****************************************************************************
635 *****************************************************************************/
636 static int Control( demux_t *p_demux, int i_query, va_list args )
638 demux_sys_t *p_sys = p_demux->p_sys;
648 case DEMUX_GET_POSITION:
649 pf = (double*) va_arg( args, double* );
650 i64 = stream_Size( p_demux->s );
653 *pf = (double)stream_Tell( p_demux->s ) / (double)i64;
661 case DEMUX_SET_POSITION:
662 f = (double) va_arg( args, double );
663 i64 = stream_Size( p_demux->s );
665 es_out_Control( p_demux->out, ES_OUT_RESET_PCR );
667 return stream_Seek( p_demux->s, (int64_t)(i64 * f) );
670 pi64 = (int64_t*)va_arg( args, int64_t * );
671 if( p_sys->i_mux_rate > 0 )
673 *pi64 = (int64_t)1000000 * ( stream_Tell( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
680 case DEMUX_GET_LENGTH:
681 pi64 = (int64_t*)va_arg( args, int64_t * );
683 /* the commented following lines are fen's implementation, which doesn't seem to
684 * work for one reason or another -- FK */
685 /*if( p_sys->i_mux_rate > 0 )
687 *pi64 = (int64_t)1000000 * ( stream_Size( p_demux->s ) / 50 ) / p_sys->i_mux_rate;
690 if( p_sys->i_our_duration > 0 )
692 /* our stored duration is in ms, so... */
693 *pi64 = (int64_t)1000 * p_sys->i_our_duration;
702 vlc_meta_t *p_meta = (vlc_meta_t*)va_arg( args, vlc_meta_t* );
704 /* the core will crash if we provide NULL strings, so check
705 * every string first */
706 if( p_sys->psz_title )
707 vlc_meta_SetTitle( p_meta, p_sys->psz_title );
708 if( p_sys->psz_artist )
709 vlc_meta_SetArtist( p_meta, p_sys->psz_artist );
710 if( p_sys->psz_copyright )
711 vlc_meta_SetCopyright( p_meta, p_sys->psz_copyright );
712 if( p_sys->psz_description )
713 vlc_meta_SetDescription( p_meta, p_sys->psz_description );
725 /*****************************************************************************
727 *****************************************************************************/
728 static int HeaderRead( demux_t *p_demux )
730 demux_sys_t *p_sys = p_demux->p_sys;
731 uint8_t header[100]; /* FIXME */
740 /* Read the header */
741 if( stream_Read( p_demux->s, header, 10 ) < 10 )
745 i_id = VLC_FOURCC( header[0], header[1], header[2], header[3] );
746 i_size = GetDWBE( &header[4] );
747 i_version = GetWBE( &header[8] );
749 msg_Dbg( p_demux, "object %4.4s size=%d version=%d",
750 (char*)&i_id, i_size, i_version );
752 if( i_size < 10 && i_id != VLC_FOURCC('D','A','T','A') )
754 msg_Dbg( p_demux, "invalid size for object %4.4s", (char*)&i_id );
757 i_skip = i_size - 10;
759 if( i_id == VLC_FOURCC('.','R','M','F') )
761 if( stream_Read( p_demux->s, header, 8 ) < 8 ) return VLC_EGENERIC;
762 msg_Dbg( p_demux, " - file version=0x%x num headers=%d",
763 GetDWBE( &header[0] ), GetDWBE( &header[4] ) );
767 else if( i_id == VLC_FOURCC('P','R','O','P') )
771 if( stream_Read(p_demux->s, header, 40) < 40 ) return VLC_EGENERIC;
773 msg_Dbg( p_demux, " - max bitrate=%d avg bitrate=%d",
774 GetDWBE(&header[0]), GetDWBE(&header[4]) );
775 msg_Dbg( p_demux, " - max packet size=%d avg bitrate=%d",
776 GetDWBE(&header[8]), GetDWBE(&header[12]) );
777 msg_Dbg( p_demux, " - packets count=%d", GetDWBE(&header[16]) );
778 msg_Dbg( p_demux, " - duration=%d ms", GetDWBE(&header[20]) );
779 msg_Dbg( p_demux, " - preroll=%d ms", GetDWBE(&header[24]) );
780 msg_Dbg( p_demux, " - index offset=%d", GetDWBE(&header[28]) );
781 msg_Dbg( p_demux, " - data offset=%d", GetDWBE(&header[32]) );
782 msg_Dbg( p_demux, " - num streams=%d", GetWBE(&header[36]) );
784 /* set the duration for export in control */
785 p_sys->i_our_duration = (int)GetDWBE(&header[20]);
787 i_flags = GetWBE(&header[38]);
788 msg_Dbg( p_demux, " - flags=0x%x %s%s%s",
790 i_flags&0x0001 ? "PN_SAVE_ENABLED " : "",
791 i_flags&0x0002 ? "PN_PERFECT_PLAY_ENABLED " : "",
792 i_flags&0x0004 ? "PN_LIVE_BROADCAST" : "" );
795 else if( i_id == VLC_FOURCC('C','O','N','T') )
800 /* FIXME FIXME: should convert from whatever the character
801 * encoding of the input meta data is to UTF-8. */
803 stream_Read( p_demux->s, header, 2 );
804 if( ( i_len = GetWBE( header ) ) > 0 )
806 psz = malloc( i_len + 1 );
807 stream_Read( p_demux->s, psz, i_len );
810 msg_Dbg( p_demux, " - title=`%s'", psz );
812 asprintf( &p_sys->psz_title, psz );
818 stream_Read( p_demux->s, header, 2 );
819 if( ( i_len = GetWBE( header ) ) > 0 )
821 psz = malloc( i_len + 1 );
822 stream_Read( p_demux->s, psz, i_len );
825 msg_Dbg( p_demux, " - author=`%s'", psz );
827 asprintf( &p_sys->psz_artist, psz );
833 stream_Read( p_demux->s, header, 2 );
834 if( ( i_len = GetWBE( header ) ) > 0 )
836 psz = malloc( i_len + 1 );
837 stream_Read( p_demux->s, psz, i_len );
840 msg_Dbg( p_demux, " - copyright=`%s'", psz );
842 asprintf( &p_sys->psz_copyright, psz );
848 stream_Read( p_demux->s, header, 2 );
849 if( ( i_len = GetWBE( header ) ) > 0 )
851 psz = malloc( i_len + 1 );
852 stream_Read( p_demux->s, psz, i_len );
855 msg_Dbg( p_demux, " - comment=`%s'", psz );
857 asprintf( &p_sys->psz_description, psz );
863 else if( i_id == VLC_FOURCC('M','D','P','R') )
865 /* Media properties header */
870 if( stream_Read(p_demux->s, header, 30) < 30 ) return VLC_EGENERIC;
871 i_num = GetWBE( header );
872 msg_Dbg( p_demux, " - id=0x%x", i_num );
873 msg_Dbg( p_demux, " - max bitrate=%d avg bitrate=%d",
874 GetDWBE(&header[2]), GetDWBE(&header[6]) );
875 msg_Dbg( p_demux, " - max packet size=%d avg packet size=%d",
876 GetDWBE(&header[10]), GetDWBE(&header[14]) );
877 msg_Dbg( p_demux, " - start time=%d", GetDWBE(&header[18]) );
878 msg_Dbg( p_demux, " - preroll=%d", GetDWBE(&header[22]) );
879 msg_Dbg( p_demux, " - duration=%d", GetDWBE(&header[26]) );
883 stream_Read( p_demux->s, header, 1 );
884 if( ( i_len = header[0] ) > 0 )
886 psz = malloc( i_len + 1 );
887 stream_Read( p_demux->s, psz, i_len );
890 msg_Dbg( p_demux, " - name=`%s'", psz );
896 stream_Read( p_demux->s, header, 1 );
897 if( ( i_len = header[0] ) > 0 )
899 psz = malloc( i_len + 1 );
900 stream_Read( p_demux->s, psz, i_len );
903 msg_Dbg( p_demux, " - mime=`%s'", psz );
909 stream_Read( p_demux->s, header, 4 );
910 if( ( i_len = GetDWBE( header ) ) > 0 )
912 ReadCodecSpecificData( p_demux, i_len, i_num );
913 stream_Read( p_demux->s, NULL, i_len );
919 else if( i_id == VLC_FOURCC('D','A','T','A') )
921 stream_Read( p_demux->s, header, 8 );
923 p_sys->i_data_offset = stream_Tell( p_demux->s ) - 10;
924 p_sys->i_data_size = i_size;
925 p_sys->i_data_packets_count = GetDWBE( header );
926 p_sys->i_data_packets = 0;
927 p_sys->i_data_offset_next = GetDWBE( &header[4] );
929 msg_Dbg( p_demux, " - packets count=%d next=%u",
930 p_sys->i_data_packets_count,
931 (uint32_t)p_sys->i_data_offset_next );
933 /* we have finished the header */
939 msg_Dbg( p_demux, "unknown chunk" );
942 if( i_skip < 0 ) return VLC_EGENERIC;
943 stream_Read( p_demux->s, NULL, i_skip );
946 /* TODO read index if possible */
951 static int ReadCodecSpecificData( demux_t *p_demux, int i_len, int i_num )
953 demux_sys_t *p_sys = p_demux->p_sys;
956 const uint8_t *p_peek;
958 msg_Dbg( p_demux, " - specific data len=%d", i_len );
959 if( stream_Peek(p_demux->s, &p_peek, i_len) < i_len ) return VLC_EGENERIC;
961 if( ( i_len >= 8 ) && !memcmp( &p_peek[4], "VIDO", 4 ) )
963 es_format_Init( &fmt, VIDEO_ES, VLC_FOURCC( p_peek[8], p_peek[9],
964 p_peek[10], p_peek[11] ) );
965 fmt.video.i_width = GetWBE( &p_peek[12] );
966 fmt.video.i_height= GetWBE( &p_peek[14] );
969 fmt.p_extra = malloc( 8 );
970 ((uint32_t*)fmt.p_extra)[0] = GetDWBE( &p_peek[26] );
971 ((uint32_t*)fmt.p_extra)[1] = GetDWBE( &p_peek[30] );
973 msg_Dbg( p_demux, " - video 0x%08x 0x%08x",
974 ((uint32_t*)fmt.p_extra)[0], ((uint32_t*)fmt.p_extra)[1] );
976 if( GetDWBE( &p_peek[30] ) == 0x10003000 ||
977 GetDWBE( &p_peek[30] ) == 0x10003001 )
979 fmt.i_codec = VLC_FOURCC( 'R','V','1','3' );
981 else if( GetDWBE( &p_peek[30] ) == 0x20001000 ||
982 GetDWBE( &p_peek[30] ) == 0x20100001 ||
983 GetDWBE( &p_peek[30] ) == 0x20200002 )
985 fmt.i_codec = VLC_FOURCC( 'R','V','2','0' );
987 else if( GetDWBE( &p_peek[30] ) == 0x30202002 )
989 fmt.i_codec = VLC_FOURCC( 'R','V','3','0' );
991 else if( GetDWBE( &p_peek[30] ) == 0x40000000 )
993 fmt.i_codec = VLC_FOURCC( 'R','V','4','0' );
996 msg_Dbg( p_demux, " - video %4.4s %dx%d",
997 (char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height );
999 tk = malloc( sizeof( real_track_t ) );
1000 tk->i_out_subpacket = 0;
1001 tk->i_subpacket = 0;
1002 tk->i_subpackets = 0;
1003 tk->p_subpackets = NULL;
1008 tk->p_es = es_out_Add( p_demux->out, &fmt );
1010 TAB_APPEND( p_sys->i_track, p_sys->track, tk );
1012 else if( !strncmp( (char *)p_peek, ".ra\xfd", 4 ) )
1014 int i_header_size, i_flavor, i_coded_frame_size, i_subpacket_h;
1015 int i_frame_size, i_subpacket_size;
1017 int i_version = GetWBE( &p_peek[4] ); /* [0..3] = '.','r','a',0xfd */
1018 msg_Dbg( p_demux, " - audio version=%d", i_version );
1020 p_peek += 6; /* 4 + version */
1021 es_format_Init( &fmt, AUDIO_ES, 0 );
1023 if( i_version == 3 )
1028 i_header_size = GetWBE( p_peek ); p_peek += 2; /* Size from now */
1029 p_peek += 10; /* Unknown */
1031 p_peek += 4; /* Data Size */
1034 i_len = *p_peek ; p_peek++;
1037 psz = malloc( i_len + 1 );
1038 memcpy( psz, p_peek, i_len );
1041 msg_Dbg( p_demux, " - title=`%s'", psz );
1043 asprintf( &p_sys->psz_title, psz );
1049 i_len = *p_peek ; p_peek++;
1052 psz = malloc( i_len + 1 );
1053 memcpy( psz, p_peek, i_len );
1056 msg_Dbg( p_demux, " - artist=`%s'", psz );
1058 asprintf( &p_sys->psz_artist, psz );
1064 i_len = *p_peek ; p_peek++;
1067 psz = malloc( i_len + 1 );
1068 memcpy( psz, p_peek, i_len );
1071 msg_Dbg( p_demux, " - Copyright=`%s'", psz );
1073 asprintf( &p_sys->psz_copyright, psz );
1079 i_len = *p_peek ; p_peek++;
1082 psz = malloc( i_len + 1 );
1083 memcpy( psz, p_peek, i_len );
1086 msg_Dbg( p_demux, " - Comment=`%s'", psz );
1088 asprintf( &p_sys->psz_description, psz );
1091 /* This might be unusefull */
1094 p_peek ++; /* Unknown */
1095 p_peek ++; /* FourCC length = 4 */
1096 memcpy( (char *)&fmt.i_codec, p_peek, 4 ); p_peek += 4;
1099 fmt.audio.i_channels = 1; /* This is always the case in rm3 */
1100 fmt.audio.i_rate = 8000;
1102 msg_Dbg( p_demux, " - audio codec=%4.4s channels=%d rate=%dHz",
1103 (char*)&fmt.i_codec, fmt.audio.i_channels, fmt.audio.i_rate );
1105 else /* RMF version 4/5 */
1107 p_peek += 2; /* 00 00 */
1108 p_peek += 4; /* .ra4 or .ra5 */
1109 p_peek += 4; /* data size */
1110 p_peek += 2; /* version (4 or 5) */
1111 i_header_size = GetDWBE( p_peek ); p_peek += 4; /* header size */
1112 i_flavor = GetWBE( p_peek ); p_peek += 2; /* codec flavor */
1113 i_coded_frame_size = GetDWBE( p_peek ); p_peek += 4; /* coded frame size*/
1114 p_peek += 4; /* ?? */
1115 p_peek += 4; /* ?? */
1116 p_peek += 4; /* ?? */
1117 i_subpacket_h = GetWBE( p_peek ); p_peek += 2; /* 1 */
1118 i_frame_size = GetWBE( p_peek ); p_peek += 2; /* frame size */
1119 i_subpacket_size = GetWBE( p_peek ); p_peek += 2; /* subpacket_size */
1120 p_peek += 2; /* ?? */
1122 if( i_version == 5 ) p_peek += 6; /* 0, srate, 0 */
1124 fmt.audio.i_rate = GetWBE( p_peek ); p_peek += 2; /* Sample Rate */
1125 p_peek += 2; /* ?? */
1126 fmt.audio.i_bitspersample = GetWBE( p_peek ); p_peek += 2;/* Sure?*/
1127 fmt.audio.i_channels = GetWBE( p_peek ); p_peek += 2; /* Channels */
1128 fmt.audio.i_blockalign = i_frame_size;
1130 if( i_version == 5 )
1132 memcpy( (char *)p_genr, p_peek, 4 ); p_peek += 4; /* genr */
1133 memcpy( (char *)&fmt.i_codec, p_peek, 4 ); p_peek += 4;
1137 p_peek += p_peek[0] + 1; /* descr 1 */
1138 memcpy( (char *)&fmt.i_codec, p_peek + 1, 4 ); /* descr 2 */
1139 p_peek += p_peek[0] + 1;
1142 msg_Dbg( p_demux, " - audio codec=%4.4s channels=%d rate=%dHz",
1143 (char*)&fmt.i_codec, fmt.audio.i_channels, fmt.audio.i_rate );
1145 p_peek += 3; /* ?? */
1146 if( i_version == 5 ) p_peek++;
1147 /* Extra Data then: DWord + byte[] */
1148 fmt.i_extra = GetDWBE( p_peek ); p_peek += 4;
1151 switch( fmt.i_codec )
1153 case VLC_FOURCC('1','4','_','4'):
1154 /* fmt.audio.i_blockalign = 0x14 */
1156 case VLC_FOURCC('l','p','c','J'):
1157 /* fmt.audio.i_blockalign = 0x14 */
1158 fmt.i_codec = VLC_FOURCC( '1','4','_','4' );
1161 case VLC_FOURCC('2','8','_','8'):
1163 fmt.audio.i_blockalign = i_coded_frame_size;
1166 case VLC_FOURCC( 'd','n','e','t' ):
1167 fmt.i_codec = VLC_FOURCC( 'a','5','2',' ' );
1170 case VLC_FOURCC( 'r','a','a','c' ):
1171 case VLC_FOURCC( 'r','a','c','p' ):
1172 if( fmt.i_extra > 0 ) { fmt.i_extra--; p_peek++; }
1173 if( fmt.i_extra > 0 )
1175 fmt.p_extra = malloc( fmt.i_extra );
1176 memcpy( fmt.p_extra, p_peek, fmt.i_extra );
1179 fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
1182 case VLC_FOURCC('s','i','p','r'):
1183 fmt.audio.i_flavor = i_flavor;
1184 case VLC_FOURCC('c','o','o','k'):
1185 case VLC_FOURCC('a','t','r','c'):
1186 if( !memcmp( p_genr, "genr", 4 ) )
1187 fmt.audio.i_blockalign = i_subpacket_size;
1189 fmt.audio.i_blockalign = i_coded_frame_size;
1190 if( !fmt.i_extra ) break;
1191 fmt.p_extra = malloc( fmt.i_extra );
1192 memcpy( fmt.p_extra, p_peek, fmt.i_extra );
1195 case VLC_FOURCC('r','a','l','f'):
1196 msg_Dbg( p_demux, " - audio codec not supported=%4.4s",
1197 (char*)&fmt.i_codec );
1201 msg_Dbg( p_demux, " - unknown audio codec=%4.4s",
1202 (char*)&fmt.i_codec );
1206 if( fmt.i_codec != 0 )
1210 msg_Dbg( p_demux, " - extra data=%d", fmt.i_extra );
1212 tk = malloc( sizeof( real_track_t ) );
1218 tk->i_subpacket_h = i_subpacket_h;
1219 tk->i_subpacket_size = i_subpacket_size;
1220 tk->i_coded_frame_size = i_coded_frame_size;
1221 tk->i_frame_size = i_frame_size;
1223 tk->i_out_subpacket = 0;
1224 tk->i_subpacket = 0;
1225 tk->i_subpackets = 0;
1226 tk->p_subpackets = NULL;
1227 if( fmt.i_codec == VLC_FOURCC('c','o','o','k')
1228 || fmt.i_codec == VLC_FOURCC('a','t','r','c') )
1231 i_subpacket_h * i_frame_size / tk->i_subpacket_size;
1233 malloc( tk->i_subpackets * sizeof(block_t *) );
1235 else if( fmt.i_codec == VLC_FOURCC('2','8','_','8') )
1238 i_subpacket_h * i_frame_size / tk->i_coded_frame_size;
1240 malloc( tk->i_subpackets * sizeof(block_t *) );
1243 for( i = 0; i < tk->i_subpackets; i++ ) tk->p_subpackets[i] = NULL;
1245 tk->p_es = es_out_Add( p_demux->out, &fmt );
1247 TAB_APPEND( p_sys->i_track, p_sys->track, tk );