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
34 * from standard AC3" but ok
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...
42 * v3 and v4/5 headers are parsed.
46 /*****************************************************************************
48 *****************************************************************************/
54 #include <vlc_common.h>
55 #include <vlc_plugin.h>
57 #include <vlc_demux.h>
58 #include <vlc_charset.h>
61 /*****************************************************************************
63 *****************************************************************************/
64 static int Open ( vlc_object_t * );
65 static void Close ( vlc_object_t * );
68 set_description( N_("Real demuxer" ) )
69 set_capability( "demux", 50 )
70 set_category( CAT_INPUT )
71 set_subcategory( SUBCAT_INPUT_DEMUX )
72 set_callbacks( Open, Close )
73 add_shortcut( "real" )
77 /*****************************************************************************
79 *****************************************************************************/
93 int i_frame_slice_count;
98 int i_coded_frame_size;
102 block_t **p_subpackets;
103 mtime_t *p_subpackets_timecode;
111 uint32_t i_file_offset;
112 uint32_t i_time_offset;
113 uint32_t i_frame_index;
118 int64_t i_data_offset;
120 uint32_t i_data_packets_count;
121 uint32_t i_data_packets;
122 int64_t i_data_offset_next;
126 int64_t i_our_duration;
131 char* psz_description;
134 real_track_t **track;
137 uint8_t buffer[65536];
141 int64_t i_index_offset;
143 real_index_t *p_index;
146 static int Demux( demux_t * );
147 static int Control( demux_t *, int i_query, va_list args );
150 static void DemuxVideo( demux_t *, real_track_t *tk, mtime_t i_dts, unsigned i_flags );
151 static void DemuxAudio( demux_t *, real_track_t *tk, mtime_t i_pts, unsigned i_flags );
153 static int ControlSeekByte( demux_t *, int64_t i_bytes );
154 static int ControlSeekTime( demux_t *, mtime_t i_time );
156 static int HeaderRead( demux_t *p_demux );
157 static int CodecParse( demux_t *p_demux, int i_len, int i_num );
159 static void RVoid( const uint8_t **pp_data, int *pi_data, int i_size );
160 static int RLength( const uint8_t **pp_data, int *pi_data );
161 static uint8_t R8( const uint8_t **pp_data, int *pi_data );
162 static uint16_t R16( const uint8_t **pp_data, int *pi_data );
163 static uint32_t R32( const uint8_t **pp_data, int *pi_data );
165 /*****************************************************************************
167 *****************************************************************************/
168 static int Open( vlc_object_t *p_this )
170 demux_t *p_demux = (demux_t*)p_this;
173 const uint8_t *p_peek;
174 bool b_real_audio = false;
176 if( stream_Peek( p_demux->s, &p_peek, 10 ) < 10 )
180 if( !memcmp( p_peek, ".ra", 3 ) )
182 msg_Err( p_demux, ".ra files unsuported" );
185 /* Real Media Format */
186 else if( memcmp( p_peek, ".RMF", 4 ) )
191 /* Fill p_demux field */
192 p_demux->pf_demux = Demux;
193 p_demux->pf_control = Control;
195 p_demux->p_sys = p_sys = calloc( 1, sizeof( *p_sys ) );
199 p_sys->i_data_offset = 0;
204 p_sys->b_seek = false;
205 p_sys->b_real_audio = b_real_audio;
207 /* Parse the headers */
208 /* Real Audio files */
211 CodecParse( p_demux, 32, 0 ); /* At least 32 */
212 return VLC_EGENERIC; /* We don't know how to read
213 correctly the data yet */
216 else if( HeaderRead( p_demux ) )
218 msg_Err( p_demux, "invalid header" );
226 /*****************************************************************************
228 *****************************************************************************/
229 static void Close( vlc_object_t *p_this )
231 demux_t *p_demux = (demux_t*)p_this;
232 demux_sys_t *p_sys = p_demux->p_sys;
234 for( int i = 0; i < p_sys->i_track; i++ )
236 real_track_t *tk = p_sys->track[i];
238 es_format_Clean( &tk->fmt );
241 block_Release( tk->p_frame );
243 for( int j = 0; j < tk->i_subpackets; j++ )
245 if( tk->p_subpackets[ j ] )
246 block_Release( tk->p_subpackets[ j ] );
248 if( tk->i_subpackets )
250 free( tk->p_subpackets );
251 free( tk->p_subpackets_timecode );
255 if( p_sys->i_track > 0 )
256 free( p_sys->track );
258 free( p_sys->psz_title );
259 free( p_sys->psz_artist );
260 free( p_sys->psz_copyright );
261 free( p_sys->psz_description );
262 free( p_sys->p_index );
268 /*****************************************************************************
270 *****************************************************************************/
271 static int Demux( demux_t *p_demux )
273 demux_sys_t *p_sys = p_demux->p_sys;
276 if( p_sys->i_data_packets >= p_sys->i_data_packets_count &&
277 p_sys->i_data_packets_count )
279 if( stream_Read( p_demux->s, header, 18 ) < 18 )
282 if( memcmp( header, "DATA", 4 ) )
285 p_sys->i_data_offset = stream_Tell( p_demux->s ) - 18;
286 p_sys->i_data_size = GetDWBE( &header[4] );
287 p_sys->i_data_packets_count = GetDWBE( &header[10] );
288 p_sys->i_data_packets = 0;
289 p_sys->i_data_offset_next = GetDWBE( &header[14] );
291 msg_Dbg( p_demux, "entering new DATA packets=%d next=%u",
292 p_sys->i_data_packets_count,
293 (unsigned int)p_sys->i_data_offset_next );
296 /* Read Packet Header */
297 if( stream_Read( p_demux->s, header, 12 ) < 12 )
299 //const int i_version = GetWBE( &header[0] );
300 const int i_size = GetWBE( &header[2] ) - 12;
301 const int i_id = GetWBE( &header[4] );
302 const int64_t i_pts = 1 + 1000 * GetDWBE( &header[6] );
303 const int i_flags= header[11]; /* flags 0x02 -> keyframe */
305 p_sys->i_data_packets++;
309 msg_Err( p_demux, "Got a NUKK size to read. (Invalid format?)" );
313 assert( i_size <= sizeof(p_sys->buffer) );
315 p_sys->i_buffer = stream_Read( p_demux->s, p_sys->buffer, i_size );
316 if( p_sys->i_buffer < i_size )
319 real_track_t *tk = NULL;
320 for( int i = 0; i < p_sys->i_track; i++ )
322 if( p_sys->track[i]->i_id == i_id )
323 tk = p_sys->track[i];
328 msg_Warn( p_demux, "unknown track id(0x%x)", i_id );
332 if( tk->fmt.i_cat == VIDEO_ES )
334 DemuxVideo( p_demux, tk, i_pts, i_flags );
338 assert( tk->fmt.i_cat == AUDIO_ES );
339 DemuxAudio( p_demux, tk, i_pts, i_flags );
344 for( int i = 0; i < p_sys->i_track; i++ )
346 real_track_t *tk = p_sys->track[i];
348 if( i_pcr <= 0 || ( tk->i_last_dts > 0 && tk->i_last_dts < i_pcr ) )
349 i_pcr = tk->i_last_dts;
351 if( i_pcr > 0 && i_pcr != p_sys->i_pcr )
353 p_sys->i_pcr = i_pcr;
354 es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
359 /*****************************************************************************
361 *****************************************************************************/
362 static int Control( demux_t *p_demux, int i_query, va_list args )
364 demux_sys_t *p_sys = p_demux->p_sys;
371 case DEMUX_GET_POSITION:
372 pf = (double*) va_arg( args, double* );
374 /* read stream size maybe failed in rtsp streaming,
375 so use duration to determin the position at first */
376 if( p_sys->i_our_duration > 0 )
378 *pf = (double)p_sys->i_pcr / 1000.0 / p_sys->i_our_duration;
383 i64 = stream_Size( p_demux->s );
385 *pf = (double)1.0*stream_Tell( p_demux->s ) / (double)i64;
389 pi64 = (int64_t*)va_arg( args, int64_t * );
391 if( p_sys->i_our_duration > 0 )
393 *pi64 = p_sys->i_pcr;
397 /* same as GET_POSTION */
398 i64 = stream_Size( p_demux->s );
399 if( p_sys->i_our_duration > 0 && i64 > 0 )
401 *pi64 = (int64_t)( 1000.0 * p_sys->i_our_duration * stream_Tell( p_demux->s ) / i64 );
408 case DEMUX_SET_POSITION:
409 f = (double) va_arg( args, double );
410 i64 = (int64_t) ( stream_Size( p_demux->s ) * f );
412 if( !p_sys->p_index && i64 != 0 )
415 msg_Err( p_demux,"Seek No Index Real File failed!" );
416 return VLC_EGENERIC; // no index!
420 /* it is a rtsp stream , it is specials in access/rtsp/... */
421 msg_Dbg(p_demux, "Seek in real rtsp stream!");
422 p_sys->i_pcr = INT64_C(1000) * ( p_sys->i_our_duration * f );
423 p_sys->b_seek = true;
424 return stream_Seek( p_demux->s, p_sys->i_pcr );
426 return ControlSeekByte( p_demux, i64 );
429 if( !p_sys->p_index )
432 i64 = (int64_t) va_arg( args, int64_t );
433 return ControlSeekTime( p_demux, i64 );
435 case DEMUX_GET_LENGTH:
436 pi64 = (int64_t*)va_arg( args, int64_t * );
439 if( p_sys->i_our_duration <= 0 )
442 /* our stored duration is in ms, so... */
443 *pi64 = INT64_C(1000) * p_sys->i_our_duration;
448 vlc_meta_t *p_meta = (vlc_meta_t*)va_arg( args, vlc_meta_t* );
450 /* the core will crash if we provide NULL strings, so check
451 * every string first */
452 if( p_sys->psz_title )
453 vlc_meta_SetTitle( p_meta, p_sys->psz_title );
454 if( p_sys->psz_artist )
455 vlc_meta_SetArtist( p_meta, p_sys->psz_artist );
456 if( p_sys->psz_copyright )
457 vlc_meta_SetCopyright( p_meta, p_sys->psz_copyright );
458 if( p_sys->psz_description )
459 vlc_meta_SetDescription( p_meta, p_sys->psz_description );
470 /*****************************************************************************
472 *****************************************************************************/
473 static void CheckPcr( demux_t *p_demux, real_track_t *tk, mtime_t i_dts )
475 demux_sys_t *p_sys = p_demux->p_sys;
478 tk->i_last_dts = i_dts;
480 if( p_sys->i_pcr > 0 || i_dts <= 0 )
483 p_sys->i_pcr = i_dts;
484 es_out_Control( p_demux->out, ES_OUT_SET_PCR, p_sys->i_pcr );
487 static void DemuxVideo( demux_t *p_demux, real_track_t *tk, mtime_t i_dts, unsigned i_flags )
489 demux_sys_t *p_sys = p_demux->p_sys;
491 const uint8_t *p_data = p_sys->buffer;
492 int i_data = p_sys->i_buffer;
496 uint8_t i_hdr = R8( &p_data, &i_data );
497 uint8_t i_type = i_hdr >> 6;
506 R8( &p_data, &i_data );
513 else if( i_type == 3 )
515 i_len = RLength( &p_data, &i_data );
516 i_pos = RLength( &p_data, &i_data );
517 i_frame_num = R8( &p_data, &i_data );
523 assert( i_type == 0 || i_type == 2 );
524 i_seq = R8( &p_data, &i_data );
525 i_len = RLength( &p_data, &i_data );
527 i_pos = RLength( &p_data, &i_data );
528 i_frame_num = R8( &p_data, &i_data );
531 if( (i_seq & 0x7f) == 1 || tk->i_frame_num != i_frame_num )
533 tk->i_frame_slice = 0;
534 tk->i_frame_slice_count = 2 * (i_hdr & 0x3f) + 1;
535 tk->i_frame_pos = 2*4 * tk->i_frame_slice_count + 1;
536 tk->i_frame_size = i_len + 2*4 * tk->i_frame_slice_count + 1;
537 tk->i_frame_num = i_frame_num;
540 block_Release( tk->p_frame );
542 tk->p_frame = block_New( p_demux, tk->i_frame_size );
545 tk->i_frame_size = 0;
549 tk->p_frame->i_dts = i_dts;
550 tk->p_frame->i_pts = 0;
552 tk->p_frame->i_flags |= BLOCK_FLAG_TYPE_I;
560 i_frame_data = i_len;
564 i_frame_data = i_data;
565 if( i_type == 2 && i_frame_data > i_pos )
566 i_frame_data = i_pos;
568 if( i_frame_data > i_data )
573 if( tk->i_frame_slice > tk->i_frame_slice_count || !tk->p_frame )
577 SetDWLE( &tk->p_frame->p_buffer[2*4*(tk->i_frame_slice-1) + 1 + 0], 1 );
578 SetDWLE( &tk->p_frame->p_buffer[2*4*(tk->i_frame_slice-1) + 1 + 4], tk->i_frame_pos - (2*4 * tk->i_frame_slice_count + 1) );
580 if( tk->i_frame_pos + i_frame_data > tk->i_frame_size )
583 memcpy( &tk->p_frame->p_buffer[tk->i_frame_pos], p_data, i_frame_data );
584 RVoid( &p_data, &i_data, i_frame_data );
585 tk->i_frame_pos += i_frame_data;
587 if( i_type != 0 || tk->i_frame_pos >= tk->i_frame_size )
589 /* Fix the buffer once the real number of slice is known */
590 tk->p_frame->p_buffer[0] = tk->i_frame_slice - 1;
591 tk->p_frame->i_buffer = tk->i_frame_pos - 2*4*( tk->i_frame_slice_count - tk->i_frame_slice );
593 memmove( &tk->p_frame->p_buffer[1+2*4*tk->i_frame_slice ],
594 &tk->p_frame->p_buffer[1+2*4*tk->i_frame_slice_count],
595 tk->i_frame_pos - (2*4*tk->i_frame_slice_count + 1) );
598 CheckPcr( p_demux, tk, tk->p_frame->i_dts );
599 es_out_Send( p_demux->out, tk->p_es, tk->p_frame );
601 tk->i_frame_size = 0;
607 static void DemuxAudioMethod1( demux_t *p_demux, real_track_t *tk, mtime_t i_pts, unsigned int i_flags )
609 demux_sys_t *p_sys = p_demux->p_sys;
610 uint8_t *p_buf = p_sys->buffer;
613 if( (i_flags & 2) || p_sys->b_seek )
616 tk->i_out_subpacket = 0;
617 p_sys->b_seek = false;
620 if( tk->fmt.i_codec == VLC_FOURCC( 'c', 'o', 'o', 'k' ) ||
621 tk->fmt.i_codec == VLC_FOURCC( 'a', 't', 'r', 'c' ) ||
622 tk->fmt.i_codec == VLC_FOURCC( 's', 'i', 'p', 'r' ) )
624 const int i_num = tk->i_frame_size / tk->i_subpacket_size;
625 const int y = tk->i_subpacket / ( tk->i_frame_size / tk->i_subpacket_size );
627 for( int i = 0; i < i_num; i++ )
629 block_t *p_block = block_New( p_demux, tk->i_subpacket_size );
632 if( &p_buf[tk->i_subpacket_size] > &p_sys->buffer[p_sys->i_buffer] )
635 memcpy( p_block->p_buffer, p_buf, tk->i_subpacket_size );
639 p_buf += tk->i_subpacket_size;
641 int i_index = tk->i_subpacket_h * i +
642 ((tk->i_subpacket_h + 1) / 2) * (y&1) + (y>>1);
644 if( tk->p_subpackets[i_index] != NULL )
646 msg_Dbg(p_demux, "p_subpackets[ %d ] not null!", i_index );
647 block_Release( tk->p_subpackets[i_index] );
650 tk->p_subpackets[i_index] = p_block;
651 if( tk->i_subpacket == 0 )
652 tk->p_subpackets_timecode[0] = i_pts;
658 const int y = tk->i_subpacket / (tk->i_subpacket_h / 2);
659 assert( tk->fmt.i_codec == VLC_FOURCC( '2', '8', '_', '8' ) );
661 for( int i = 0; i < tk->i_subpacket_h / 2; i++ )
663 block_t *p_block = block_New( p_demux, tk->i_coded_frame_size);
666 if( &p_buf[tk->i_coded_frame_size] > &p_sys->buffer[p_sys->i_buffer] )
669 int i_index = (i * 2 * tk->i_frame_size / tk->i_coded_frame_size) + y;
671 memcpy( p_block->p_buffer, p_buf, tk->i_coded_frame_size );
673 p_block->i_pts = i_index == 0 ? i_pts : 0;
675 p_buf += tk->i_coded_frame_size;
677 if( tk->p_subpackets[i_index] != NULL )
679 msg_Dbg(p_demux, "p_subpackets[ %d ] not null!", i_index );
680 block_Release( tk->p_subpackets[i_index] );
683 tk->p_subpackets[i_index] = p_block;
688 while( tk->i_out_subpacket != tk->i_subpackets &&
689 tk->p_subpackets[tk->i_out_subpacket] )
691 block_t *p_block = tk->p_subpackets[tk->i_out_subpacket];
692 tk->p_subpackets[tk->i_out_subpacket] = NULL;
694 if( tk->p_subpackets_timecode[tk->i_out_subpacket] )
697 p_block->i_pts = tk->p_subpackets_timecode[tk->i_out_subpacket];
699 tk->p_subpackets_timecode[tk->i_out_subpacket] = 0;
701 tk->i_out_subpacket++;
703 CheckPcr( p_demux, tk, p_block->i_pts );
704 es_out_Send( p_demux->out, tk->p_es, p_block );
707 if( tk->i_subpacket == tk->i_subpackets &&
708 tk->i_out_subpacket != tk->i_subpackets )
710 msg_Warn( p_demux, "i_subpacket != i_out_subpacket, "
711 "this shouldn't happen" );
714 if( tk->i_subpacket == tk->i_subpackets )
717 tk->i_out_subpacket = 0;
720 static void DemuxAudioMethod2( demux_t *p_demux, real_track_t *tk, mtime_t i_pts )
722 demux_sys_t *p_sys = p_demux->p_sys;
724 if( p_sys->i_buffer < 2 )
727 int i_sub = (p_sys->buffer[1] >> 4)&0x0f;
728 if( p_sys->i_buffer < 2+2*i_sub )
731 uint8_t *p_sub = &p_sys->buffer[2+2*i_sub];
733 for( int i = 0; i < i_sub; i++ )
735 const int i_sub_size = GetWBE( &p_sys->buffer[2+i*2] );
736 block_t *p_block = block_New( p_demux, i_sub_size );
740 if( &p_sub[i_sub_size] > &p_sys->buffer[p_sys->i_buffer] )
743 memcpy( p_block->p_buffer, p_sub, i_sub_size );
747 p_block->i_pts = ( i == 0 ? i_pts : 0 );
749 CheckPcr( p_demux, tk, p_block->i_pts );
750 es_out_Send( p_demux->out, tk->p_es, p_block );
753 static void DemuxAudioMethod3( demux_t *p_demux, real_track_t *tk, mtime_t i_pts )
755 demux_sys_t *p_sys = p_demux->p_sys;
757 if( p_sys->i_buffer <= 0 )
760 block_t *p_block = block_New( p_demux, p_sys->i_buffer );
764 if( tk->fmt.i_codec == VLC_FOURCC( 'a', '5', '2', ' ' ) )
766 uint8_t *p_src = p_sys->buffer;
767 uint8_t *p_dst = p_block->p_buffer;
770 while( p_dst < &p_block->p_buffer[p_sys->i_buffer - 1])
780 memcpy( p_block->p_buffer, p_sys->buffer, p_sys->i_buffer );
783 p_block->i_pts = i_pts;
785 CheckPcr( p_demux, tk, p_block->i_pts );
786 es_out_Send( p_demux->out, tk->p_es, p_block );
789 static void DemuxAudio( demux_t *p_demux, real_track_t *tk, mtime_t i_pts, unsigned i_flags )
791 switch( tk->fmt.i_codec )
793 case VLC_FOURCC( 'c', 'o', 'o', 'k' ):
794 case VLC_FOURCC( 'a', 't', 'r', 'c' ):
795 case VLC_FOURCC( 's', 'i', 'p', 'r' ):
796 case VLC_FOURCC( '2', '8', '_', '8' ):
797 DemuxAudioMethod1( p_demux, tk, i_pts, i_flags );
799 case VLC_FOURCC( 'm','p','4','a' ):
800 DemuxAudioMethod2( p_demux, tk, i_pts );
803 DemuxAudioMethod3( p_demux, tk, i_pts );
808 /*****************************************************************************
809 * Helpers: seek/control
810 *****************************************************************************/
811 static int ControlGoToIndex( demux_t *p_demux, real_index_t *p_index )
813 demux_sys_t *p_sys = p_demux->p_sys;
815 p_sys->b_seek = true;
816 p_sys->i_pcr = INT64_C(1000) * p_index->i_time_offset;
817 for( int i = 0; i < p_sys->i_track; i++ )
818 p_sys->track[i]->i_last_dts = 0;
819 return stream_Seek( p_demux->s, p_index->i_file_offset );
821 static int ControlSeekTime( demux_t *p_demux, mtime_t i_time )
823 demux_sys_t *p_sys = p_demux->p_sys;
824 real_index_t *p_index = p_sys->p_index;
826 while( p_index->i_file_offset != 0 )
828 if( p_index->i_time_offset * INT64_C(1000) > i_time )
830 if( p_index != p_sys->p_index )
836 if( p_index->i_file_offset == 0 )
838 return ControlGoToIndex( p_demux, p_index );
840 static int ControlSeekByte( demux_t *p_demux, int64_t i_bytes )
842 demux_sys_t *p_sys = p_demux->p_sys;
843 real_index_t *p_index = p_sys->p_index;
845 while( p_index->i_file_offset != 0 )
847 if( p_index->i_file_offset > i_bytes )
849 if( p_index != p_sys->p_index )
855 if( p_index->i_file_offset == 0 )
857 return ControlGoToIndex( p_demux, p_index );
860 /*****************************************************************************
861 * Helpers: header reading
862 *****************************************************************************/
865 * This function will read a pascal string with size stored in 2 bytes from
868 * FIXME what is the right charset ?
870 static char *StreamReadString2( stream_t *s )
874 if( stream_Read( s, p_tmp, 2 ) < 2 )
877 const int i_length = GetWBE( p_tmp );
881 char *psz_string = calloc( 1, i_length + 1 );
883 stream_Read( s, psz_string, i_length ); /* Valid even if !psz_string */
886 EnsureUTF8( psz_string );
891 * This function will read a pascal string with size stored in 1 byte from a
894 * FIXME what is the right charset ?
896 static char *MemoryReadString1( const uint8_t **pp_data, int *pi_data )
898 const uint8_t *p_data = *pp_data;
899 int i_data = *pi_data;
901 char *psz_string = NULL;
906 int i_length = *p_data++; i_data--;
907 if( i_length > i_data )
912 psz_string = strndup( (const char*)p_data, i_length );
914 EnsureUTF8( psz_string );
927 * This function parses(skip) the .RMF identification chunk.
929 static int HeaderRMF( demux_t *p_demux )
933 if( stream_Read( p_demux->s, p_buffer, 8 ) < 8 )
936 msg_Dbg( p_demux, " - file version=0x%x num headers=%d",
937 GetDWBE( &p_buffer[0] ), GetDWBE( &p_buffer[4] ) );
941 * This function parses the PROP properties chunk.
943 static int HeaderPROP( demux_t *p_demux )
945 demux_sys_t *p_sys = p_demux->p_sys;
947 uint8_t p_buffer[40];
950 if( stream_Read( p_demux->s, p_buffer, 40 ) < 40 )
953 msg_Dbg( p_demux, " - max bitrate=%d avg bitrate=%d",
954 GetDWBE(&p_buffer[0]), GetDWBE(&p_buffer[4]) );
955 msg_Dbg( p_demux, " - max packet size=%d avg bitrate=%d",
956 GetDWBE(&p_buffer[8]), GetDWBE(&p_buffer[12]) );
957 msg_Dbg( p_demux, " - packets count=%d", GetDWBE(&p_buffer[16]) );
958 msg_Dbg( p_demux, " - duration=%d ms", GetDWBE(&p_buffer[20]) );
959 msg_Dbg( p_demux, " - preroll=%d ms", GetDWBE(&p_buffer[24]) );
960 msg_Dbg( p_demux, " - index offset=%d", GetDWBE(&p_buffer[28]) );
961 msg_Dbg( p_demux, " - data offset=%d", GetDWBE(&p_buffer[32]) );
962 msg_Dbg( p_demux, " - num streams=%d", GetWBE(&p_buffer[36]) );
964 /* set the duration for export in control */
965 p_sys->i_our_duration = GetDWBE(&p_buffer[20]);
967 p_sys->i_index_offset = GetDWBE(&p_buffer[28]);
969 i_flags = GetWBE(&p_buffer[38]);
970 msg_Dbg( p_demux, " - flags=0x%x %s%s%s",
972 i_flags&0x0001 ? "PN_SAVE_ENABLED " : "",
973 i_flags&0x0002 ? "PN_PERFECT_PLAY_ENABLED " : "",
974 i_flags&0x0004 ? "PN_LIVE_BROADCAST" : "" );
979 * This functions parses the CONT commentairs chunk.
981 static int HeaderCONT( demux_t *p_demux )
983 demux_sys_t *p_sys = p_demux->p_sys;
986 p_sys->psz_title = StreamReadString2( p_demux->s );
987 if( p_sys->psz_title )
988 msg_Dbg( p_demux, " - title=`%s'", p_sys->psz_title );
991 p_sys->psz_artist = StreamReadString2( p_demux->s );
992 if( p_sys->psz_artist )
993 msg_Dbg( p_demux, " - artist=`%s'", p_sys->psz_artist );
996 p_sys->psz_copyright = StreamReadString2( p_demux->s );
997 if( p_sys->psz_copyright )
998 msg_Dbg( p_demux, " - copyright=`%s'", p_sys->psz_copyright );
1001 p_sys->psz_description = StreamReadString2( p_demux->s );
1002 if( p_sys->psz_description )
1003 msg_Dbg( p_demux, " - comment=`%s'", p_sys->psz_description );
1008 * This function parses the MDPR (Media properties) chunk.
1010 static int HeaderMDPR( demux_t *p_demux )
1012 uint8_t p_buffer[30];
1014 if( stream_Read( p_demux->s, p_buffer, 30 ) < 30 )
1015 return VLC_EGENERIC;
1017 const int i_num = GetWBE( &p_buffer[0] );
1018 msg_Dbg( p_demux, " - id=0x%x", i_num );
1019 msg_Dbg( p_demux, " - max bitrate=%d avg bitrate=%d",
1020 GetDWBE(&p_buffer[2]), GetDWBE(&p_buffer[6]) );
1021 msg_Dbg( p_demux, " - max packet size=%d avg packet size=%d",
1022 GetDWBE(&p_buffer[10]), GetDWBE(&p_buffer[14]) );
1023 msg_Dbg( p_demux, " - start time=%d", GetDWBE(&p_buffer[18]) );
1024 msg_Dbg( p_demux, " - preroll=%d", GetDWBE(&p_buffer[22]) );
1025 msg_Dbg( p_demux, " - duration=%d", GetDWBE(&p_buffer[26]) );
1028 const uint8_t *p_peek;
1029 int i_peek_org = stream_Peek( p_demux->s, &p_peek, 2 * 256 );
1030 int i_peek = i_peek_org;
1032 return VLC_EGENERIC;
1034 char *psz_name = MemoryReadString1( &p_peek, &i_peek );
1037 msg_Dbg( p_demux, " - name=`%s'", psz_name );
1040 char *psz_mime = MemoryReadString1( &p_peek, &i_peek );
1043 msg_Dbg( p_demux, " - mime=`%s'", psz_mime );
1046 const int i_skip = i_peek_org - i_peek;
1047 if( i_skip > 0 && stream_Read( p_demux->s, NULL, i_skip ) < i_skip )
1048 return VLC_EGENERIC;
1051 if( stream_Read( p_demux->s, p_buffer, 4 ) < 4 )
1052 return VLC_EGENERIC;
1054 const uint32_t i_size = GetDWBE( p_buffer );
1057 CodecParse( p_demux, i_size, i_num );
1058 if( stream_Read( p_demux->s, NULL, i_size ) < i_size )
1059 return VLC_EGENERIC;
1064 * This function parses DATA chunk (it contains the actual movie data).
1066 static int HeaderDATA( demux_t *p_demux, uint32_t i_size )
1068 demux_sys_t *p_sys = p_demux->p_sys;
1069 uint8_t p_buffer[8];
1071 if( stream_Read( p_demux->s, p_buffer, 8 ) < 8 )
1072 return VLC_EGENERIC;
1074 p_sys->i_data_offset = stream_Tell( p_demux->s ) - 10;
1075 p_sys->i_data_size = i_size;
1076 p_sys->i_data_packets_count = GetDWBE( p_buffer );
1077 p_sys->i_data_packets = 0;
1078 p_sys->i_data_offset_next = GetDWBE( &p_buffer[4] );
1080 msg_Dbg( p_demux, " - packets count=%d next=%u",
1081 p_sys->i_data_packets_count,
1082 (unsigned int)p_sys->i_data_offset_next );
1086 * This function parses the INDX (movie index chunk).
1087 * It is optional but seeking without it is ... hard.
1089 static void HeaderINDX( demux_t *p_demux )
1091 demux_sys_t *p_sys = p_demux->p_sys;
1094 uint32_t i_index_count;
1096 if( p_sys->i_index_offset == 0 )
1099 stream_Seek( p_demux->s, p_sys->i_index_offset );
1101 if( stream_Read( p_demux->s, buffer, 20 ) < 20 )
1104 const uint32_t i_id = VLC_FOURCC( buffer[0], buffer[1], buffer[2], buffer[3] );
1105 const uint32_t i_size = GetDWBE( &buffer[4] );
1106 int i_version = GetWBE( &buffer[8] );
1108 msg_Dbg( p_demux, "Real index %4.4s size=%d version=%d",
1109 (char*)&i_id, i_size, i_version );
1111 if( (i_size < 20) && (i_id != VLC_FOURCC('I','N','D','X')) )
1114 i_index_count = GetDWBE( &buffer[10] );
1116 msg_Dbg( p_demux, "Real Index : num : %d ", i_index_count );
1118 if( i_index_count >= ( 0xffffffff / sizeof(*p_sys->p_index) ) )
1121 if( GetDWBE( &buffer[16] ) > 0 )
1122 msg_Dbg( p_demux, "Real Index: Does next index exist? %d ",
1123 GetDWBE( &buffer[16] ) );
1125 /* One extra entry is allocated (that MUST be set to 0) to identify the
1127 * TODO add a clean entry count (easier to build index on the fly) */
1128 p_sys->p_index = calloc( i_index_count + 1, sizeof(*p_sys->p_index) );
1129 if( !p_sys->p_index )
1132 for( unsigned int i = 0; i < i_index_count; i++ )
1134 uint8_t p_entry[14];
1136 if( stream_Read( p_demux->s, p_entry, 14 ) < 14 )
1139 if( GetWBE( &p_entry[0] ) != 0 )
1141 msg_Dbg( p_demux, "Real Index: invaild version of index entry %d ",
1142 GetWBE( &p_entry[0] ) );
1146 real_index_t *p_idx = &p_sys->p_index[i];
1148 p_idx->i_time_offset = GetDWBE( &p_entry[2] );
1149 p_idx->i_file_offset = GetDWBE( &p_entry[6] );
1150 p_idx->i_frame_index = GetDWBE( &p_entry[10] );
1154 "Real Index: time %"PRIu32" file %"PRIu32" frame %"PRIu32,
1155 p_idx->i_time_offset,
1156 p_idx->i_file_offset,
1157 p_idx->i_frame_index );
1164 * This function parses the complete RM headers and move the
1165 * stream pointer to the data to be read.
1167 static int HeaderRead( demux_t *p_demux )
1169 demux_sys_t *p_sys = p_demux->p_sys;
1173 const int64_t i_stream_position = stream_Tell( p_demux->s );
1174 uint8_t header[100]; /* FIXME */
1176 /* Read the header */
1177 if( stream_Read( p_demux->s, header, 10 ) < 10 )
1178 return VLC_EGENERIC;
1180 const uint32_t i_id = VLC_FOURCC( header[0], header[1],
1181 header[2], header[3] );
1182 const uint32_t i_size = GetDWBE( &header[4] );
1183 const int i_version = GetWBE( &header[8] );
1185 msg_Dbg( p_demux, "object %4.4s size=%d version=%d",
1186 (char*)&i_id, i_size, i_version );
1189 if( i_size < 10 && i_id != VLC_FOURCC('D','A','T','A') )
1191 msg_Dbg( p_demux, "invalid size for object %4.4s", (char*)&i_id );
1192 return VLC_EGENERIC;
1198 case VLC_FOURCC('.','R','M','F'):
1199 i_ret = HeaderRMF( p_demux );
1201 case VLC_FOURCC('P','R','O','P'):
1202 i_ret = HeaderPROP( p_demux );
1204 case VLC_FOURCC('C','O','N','T'):
1205 i_ret = HeaderCONT( p_demux );
1207 case VLC_FOURCC('M','D','P','R'):
1208 i_ret = HeaderMDPR( p_demux );
1210 case VLC_FOURCC('D','A','T','A'):
1211 i_ret = HeaderDATA( p_demux, i_size );
1215 msg_Dbg( p_demux, "unknown chunk" );
1216 i_ret = VLC_SUCCESS;
1222 if( i_id == VLC_FOURCC('D','A','T','A') ) /* In this case, parsing is finished */
1225 /* Skip unread data */
1226 const int64_t i_stream_current = stream_Tell( p_demux->s );
1227 const int64_t i_stream_skip = (i_stream_position + i_size) - i_stream_current;
1229 if( i_stream_skip > 0 )
1231 if( stream_Read( p_demux->s, NULL, i_stream_skip ) != i_stream_skip )
1232 return VLC_EGENERIC;
1234 else if( i_stream_skip < 0 )
1236 return VLC_EGENERIC;
1240 /* read index if possible */
1241 if( p_sys->i_index_offset > 0 )
1243 const int64_t i_position = stream_Tell( p_demux->s );
1245 HeaderINDX( p_demux );
1247 if( stream_Seek( p_demux->s, i_position ) )
1248 return VLC_EGENERIC;
1253 static void CodecMetaRead( demux_t *p_demux, const uint8_t **pp_data, int *pi_data )
1255 demux_sys_t *p_sys = p_demux->p_sys;
1258 p_sys->psz_title = MemoryReadString1( pp_data, pi_data );
1259 if( p_sys->psz_title )
1260 msg_Dbg( p_demux, " - title=`%s'", p_sys->psz_title );
1263 p_sys->psz_artist = MemoryReadString1( pp_data, pi_data );
1264 if( p_sys->psz_artist )
1265 msg_Dbg( p_demux, " - artist=`%s'", p_sys->psz_artist );
1268 p_sys->psz_copyright = MemoryReadString1( pp_data, pi_data );
1269 if( p_sys->psz_copyright )
1270 msg_Dbg( p_demux, " - copyright=`%s'", p_sys->psz_copyright );
1273 p_sys->psz_description = MemoryReadString1( pp_data, pi_data );
1274 if( p_sys->psz_description )
1275 msg_Dbg( p_demux, " - Comment=`%s'", p_sys->psz_description );
1278 static int CodecVideoParse( demux_t *p_demux, int i_tk_id, const uint8_t *p_data, int i_data )
1280 demux_sys_t *p_sys = p_demux->p_sys;
1283 return VLC_EGENERIC;
1287 es_format_Init( &fmt, VIDEO_ES,
1288 VLC_FOURCC( p_data[8], p_data[9], p_data[10], p_data[11] ) );
1289 fmt.video.i_width = GetWBE( &p_data[12] );
1290 fmt.video.i_height= GetWBE( &p_data[14] );
1291 fmt.video.i_frame_rate = (GetWBE( &p_data[22] ) << 16) | GetWBE( &p_data[24] );
1292 fmt.video.i_frame_rate_base = 1 << 16;
1295 fmt.p_extra = malloc( 8 );
1299 memcpy( fmt.p_extra, &p_data[26], 8 );
1301 //msg_Dbg( p_demux, " - video 0x%08x 0x%08x", dw0, dw1 );
1304 switch( GetDWBE( &p_data[30] ) )
1308 fmt.i_codec = VLC_FOURCC( 'R','V','1','3' );
1314 fmt.i_codec = VLC_FOURCC( 'R','V','2','0' );
1317 fmt.i_codec = VLC_FOURCC( 'R','V','3','0' );
1320 fmt.i_codec = VLC_FOURCC( 'R','V','4','0' );
1323 msg_Dbg( p_demux, " - video %4.4s %dx%d - %8.8x",
1324 (char*)&fmt.i_codec, fmt.video.i_width, fmt.video.i_height, GetDWBE( &p_data[30] ) );
1326 real_track_t *tk = malloc( sizeof( *tk ) );
1329 es_format_Clean( &fmt );
1332 tk->i_out_subpacket = 0;
1333 tk->i_subpacket = 0;
1334 tk->i_subpackets = 0;
1335 tk->p_subpackets = NULL;
1336 tk->p_subpackets_timecode = NULL;
1339 tk->i_frame_num = -1;
1340 tk->i_frame_size = 0;
1343 tk->p_es = es_out_Add( p_demux->out, &fmt );
1345 TAB_APPEND( p_sys->i_track, p_sys->track, tk );
1348 static int CodecAudioParse( demux_t *p_demux, int i_tk_id, const uint8_t *p_data, int i_data )
1350 demux_sys_t *p_sys = p_demux->p_sys;
1354 return VLC_EGENERIC;
1357 int i_coded_frame_size = 0;
1358 int i_subpacket_h = 0;
1359 int i_frame_size = 0;
1360 int i_subpacket_size = 0;
1362 int i_version = GetWBE( &p_data[4] );
1363 int i_extra_codec = 0;
1365 msg_Dbg( p_demux, " - audio version=%d", i_version );
1367 es_format_Init( &fmt, AUDIO_ES, 0 );
1369 RVoid( &p_data, &i_data, 6 ); /* 4 + version */
1370 if( i_version == 3 ) /* RMF version 3 or .ra version 3 */
1372 RVoid( &p_data, &i_data, 2 + 10 + 4 );
1375 CodecMetaRead( p_demux, &p_data, &i_data );
1377 RVoid( &p_data, &i_data, 1 + 1 );
1379 memcpy( &fmt.i_codec, p_data, 4 );
1380 RVoid( &p_data, &i_data, 4 );
1382 fmt.audio.i_channels = 1; /* This is always the case in rm3 */
1383 fmt.audio.i_rate = 8000;
1385 msg_Dbg( p_demux, " - audio codec=%4.4s channels=%d rate=%dHz",
1386 (char*)&fmt.i_codec, fmt.audio.i_channels, fmt.audio.i_rate );
1388 else /* RMF version 4/5 or .ra version 4 */
1390 RVoid( &p_data, &i_data, 2 + 4 + 4 + 2 + 4 );
1391 i_flavor = R16( &p_data, &i_data );
1392 i_coded_frame_size = R32( &p_data, &i_data );
1393 RVoid( &p_data, &i_data, 4 + 4 + 4 );
1394 i_subpacket_h = R16( &p_data, &i_data );
1395 i_frame_size = R16( &p_data, &i_data );
1396 i_subpacket_size = R16( &p_data, &i_data );
1397 if( !i_frame_size || !i_coded_frame_size )
1398 return VLC_EGENERIC;
1400 RVoid( &p_data, &i_data, 2 + (i_version == 5 ? 6 : 0 ) );
1402 fmt.audio.i_rate = R16( &p_data, &i_data );
1403 RVoid( &p_data, &i_data, 2 );
1404 fmt.audio.i_bitspersample = R16( &p_data, &i_data );
1405 fmt.audio.i_channels = R16( &p_data, &i_data );
1406 fmt.audio.i_blockalign = i_frame_size;
1408 if( i_version == 5 )
1412 memcpy( p_genr, &p_data[0], 4 );
1413 memcpy( &fmt.i_codec, &p_data[4], 4 );
1415 RVoid( &p_data, &i_data, 8 );
1417 else /* version 4 */
1420 RVoid( &p_data, &i_data, 1 + *p_data );
1421 if( i_data >= 1 + 4 )
1422 memcpy( &fmt.i_codec, &p_data[1], 4 );
1424 RVoid( &p_data, &i_data, 1 + *p_data );
1427 msg_Dbg( p_demux, " - audio codec=%4.4s channels=%d rate=%dHz",
1428 (char*)&fmt.i_codec, fmt.audio.i_channels, fmt.audio.i_rate );
1430 RVoid( &p_data, &i_data, 3 );
1432 if( p_sys->b_real_audio )
1434 CodecMetaRead( p_demux, &p_data, &i_data );
1438 if( i_version == 5 )
1439 RVoid( &p_data, &i_data, 1 );
1440 i_extra_codec = R32( &p_data, &i_data );
1444 switch( fmt.i_codec )
1446 case VLC_FOURCC('l','p','c','J'):
1447 fmt.i_codec = VLC_FOURCC( '1','4','_','4' );
1448 case VLC_FOURCC('1','4','_','4'):
1449 fmt.audio.i_blockalign = 0x14 ;
1452 case VLC_FOURCC('2','8','_','8'):
1453 fmt.audio.i_blockalign = i_coded_frame_size;
1456 case VLC_FOURCC( 'd','n','e','t' ):
1457 fmt.i_codec = VLC_FOURCC( 'a','5','2',' ' );
1460 case VLC_FOURCC( 'r','a','a','c' ):
1461 case VLC_FOURCC( 'r','a','c','p' ):
1462 fmt.i_codec = VLC_FOURCC( 'm','p','4','a' );
1464 if( i_extra_codec > 0 )
1467 RVoid( &p_data, &i_data, 1 );
1469 if( i_extra_codec > 0 )
1471 fmt.p_extra = malloc( i_extra_codec );
1472 if( !fmt.p_extra || i_extra_codec > i_data )
1475 fmt.i_extra = i_extra_codec;
1476 memcpy( fmt.p_extra, p_data, fmt.i_extra );
1480 case VLC_FOURCC('s','i','p','r'):
1481 fmt.audio.i_flavor = i_flavor;
1482 case VLC_FOURCC('c','o','o','k'):
1483 case VLC_FOURCC('a','t','r','c'):
1484 if( i_subpacket_size <= 0 ||
1485 i_frame_size / i_subpacket_size <= 0 )
1487 es_format_Clean( &fmt );
1488 return VLC_EGENERIC;
1490 if( !memcmp( p_genr, "genr", 4 ) )
1491 fmt.audio.i_blockalign = i_subpacket_size;
1493 fmt.audio.i_blockalign = i_coded_frame_size;
1495 if( i_extra_codec > 0 )
1497 fmt.p_extra = malloc( i_extra_codec );
1498 if( !fmt.p_extra || i_extra_codec > i_data )
1501 fmt.i_extra = i_extra_codec;
1502 memcpy( fmt.p_extra, p_data, fmt.i_extra );
1507 case VLC_FOURCC('r','a','l','f'):
1508 msg_Dbg( p_demux, " - audio codec not supported=%4.4s",
1509 (char*)&fmt.i_codec );
1513 msg_Dbg( p_demux, " - unknown audio codec=%4.4s",
1514 (char*)&fmt.i_codec );
1517 msg_Dbg( p_demux, " - extra data=%d", fmt.i_extra );
1520 real_track_t *tk = malloc( sizeof( *tk ) );
1523 es_format_Clean( &fmt );
1528 tk->i_frame_size = 0;
1531 tk->i_subpacket_h = i_subpacket_h;
1532 tk->i_subpacket_size = i_subpacket_size;
1533 tk->i_coded_frame_size = i_coded_frame_size;
1534 tk->i_frame_size = i_frame_size;
1536 tk->i_out_subpacket = 0;
1537 tk->i_subpacket = 0;
1538 tk->i_subpackets = 0;
1539 tk->p_subpackets = NULL;
1540 tk->p_subpackets_timecode = NULL;
1541 if( fmt.i_codec == VLC_FOURCC('c','o','o','k') ||
1542 fmt.i_codec == VLC_FOURCC('a','t','r','c') ||
1543 fmt.i_codec == VLC_FOURCC('s','i','p','r') )
1546 i_subpacket_h * i_frame_size / tk->i_subpacket_size;
1548 calloc( tk->i_subpackets, sizeof(block_t *) );
1549 tk->p_subpackets_timecode =
1550 calloc( tk->i_subpackets , sizeof( int64_t ) );
1552 else if( fmt.i_codec == VLC_FOURCC('2','8','_','8') )
1555 i_subpacket_h * i_frame_size / tk->i_coded_frame_size;
1557 calloc( tk->i_subpackets, sizeof(block_t *) );
1558 tk->p_subpackets_timecode =
1559 calloc( tk->i_subpackets , sizeof( int64_t ) );
1562 /* Check if the calloc went correctly */
1563 if( tk->i_subpacket > 0 && ( !tk->p_subpackets || !tk->p_subpackets_timecode ) )
1565 free( tk->p_subpackets_timecode );
1566 free( tk->p_subpackets );
1568 msg_Err( p_demux, "Can't alloc subpacket" );
1569 return VLC_EGENERIC;
1573 tk->p_es = es_out_Add( p_demux->out, &fmt );
1575 TAB_APPEND( p_sys->i_track, p_sys->track, tk );
1581 static int CodecParse( demux_t *p_demux, int i_len, int i_num )
1583 const uint8_t *p_peek;
1585 msg_Dbg( p_demux, " - specific data len=%d", i_len );
1586 if( stream_Peek( p_demux->s, &p_peek, i_len ) < i_len )
1587 return VLC_EGENERIC;
1589 if( i_len >= 8 && !memcmp( &p_peek[4], "VIDO", 4 ) )
1591 return CodecVideoParse( p_demux, i_num, p_peek, i_len );
1593 else if( i_len >= 4 && !memcmp( &p_peek[0], ".ra\xfd", 4 ) )
1595 return CodecAudioParse( p_demux, i_num, p_peek, i_len );
1600 /*****************************************************************************
1601 * Helpers: memory buffer fct.
1602 *****************************************************************************/
1603 static void RVoid( const uint8_t **pp_data, int *pi_data, int i_size )
1605 if( i_size > *pi_data )
1611 #define RX(name, type, size, code ) \
1612 static type name( const uint8_t **pp_data, int *pi_data ) { \
1613 if( *pi_data < (size) ) \
1616 RVoid( pp_data, pi_data, size ); \
1619 RX(R8, uint8_t, 1, **pp_data )
1620 RX(R16, uint16_t, 2, GetWBE( *pp_data ) )
1621 RX(R32, uint32_t, 4, GetDWBE( *pp_data ) )
1622 static int RLength( const uint8_t **pp_data, int *pi_data )
1624 const int v0 = R16( pp_data, pi_data ) & 0x7FFF;
1627 return (v0 << 16) | R16( pp_data, pi_data );