1 /*****************************************************************************
2 * asf.c : ASFv01 file input module for vlc
3 *****************************************************************************
4 * Copyright (C) 2001 VideoLAN
5 * $Id: asf.c,v 1.21 2003/02/27 13:19:43 gbazin Exp $
6 * Authors: Laurent Aimar <fenrir@via.ecp.fr>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
21 *****************************************************************************/
23 /*****************************************************************************
25 *****************************************************************************/
26 #include <stdlib.h> /* malloc(), free() */
27 #include <string.h> /* strdup() */
29 #include <sys/types.h>
32 #include <vlc/input.h>
37 /*****************************************************************************
39 *****************************************************************************/
40 static int Activate ( vlc_object_t * );
41 static void Deactivate ( vlc_object_t * );
42 static int Demux ( input_thread_t * );
44 /*****************************************************************************
46 *****************************************************************************/
48 set_description( _("ASF v1.0 demuxer (file only)") );
49 set_capability( "demux", 200 );
50 set_callbacks( Activate, Deactivate );
51 add_shortcut( "asf" );
54 static uint16_t GetWLE( uint8_t *p_buff )
56 return( (p_buff[0]) + ( p_buff[1] <<8 ) );
58 static uint32_t GetDWLE( uint8_t *p_buff )
60 return( p_buff[0] + ( p_buff[1] <<8 ) +
61 ( p_buff[2] <<16 ) + ( p_buff[3] <<24 ) );
64 /*****************************************************************************
65 * Activate: check file and initializes ASF structures
66 *****************************************************************************/
67 static int Activate( vlc_object_t * p_this )
69 input_thread_t *p_input = (input_thread_t *)p_this;
76 /* Initialize access plug-in structures. */
77 if( p_input->i_mtu == 0 )
80 p_input->i_bufsize = INPUT_DEFAULT_BUFSIZE;
83 p_input->pf_demux = Demux;
85 /* a little test to see if it could be a asf stream */
86 if( input_Peek( p_input, &p_peek, 16 ) < 16 )
88 msg_Warn( p_input, "ASF v1.0 plugin discarded (cannot peek)" );
91 GetGUID( &guid, p_peek );
92 if( !CmpGUID( &guid, &asf_object_header_guid ) )
94 msg_Warn( p_input, "ASF v1.0 plugin discarded (not a valid file)" );
98 /* create our structure that will contains all data */
99 if( !( p_input->p_demux_data =
100 p_demux = malloc( sizeof( demux_sys_t ) ) ) )
102 msg_Err( p_input, "out of memory" );
105 memset( p_demux, 0, sizeof( demux_sys_t ) );
107 /* Now load all object ( except raw data ) */
108 if( !ASF_ReadObjectRoot( p_input, &p_demux->root, p_input->stream.b_seekable ) )
110 msg_Warn( p_input, "ASF v1.0 plugin discarded (not a valid file)" );
114 /* Check if we have found all mandatory asf object */
115 if( !p_demux->root.p_hdr || !p_demux->root.p_data )
117 ASF_FreeObjectRoot( p_input, &p_demux->root );
119 msg_Warn( p_input, "ASF v1.0 plugin discarded (not a valid file)" );
123 if( !( p_demux->p_fp = ASF_FindObject( p_demux->root.p_hdr,
124 &asf_object_file_properties_guid, 0 ) ) )
126 ASF_FreeObjectRoot( p_input, &p_demux->root );
128 msg_Warn( p_input, "ASF v1.0 plugin discarded (missing file_properties object)" );
132 if( p_demux->p_fp->i_min_data_packet_size != p_demux->p_fp->i_max_data_packet_size )
134 ASF_FreeObjectRoot( p_input, &p_demux->root );
136 msg_Warn( p_input, "ASF v1.0 plugin discarded (invalid file_properties object)" );
140 p_demux->i_streams = ASF_CountObject( p_demux->root.p_hdr,
141 &asf_object_stream_properties_guid );
142 if( !p_demux->i_streams )
144 ASF_FreeObjectRoot( p_input, &p_demux->root );
146 msg_Warn( p_input, "ASF plugin discarded (cannot find any stream!)" );
151 input_info_category_t *p_cat = input_InfoCategory( p_input, "Asf" );
152 msg_Dbg( p_input, "found %d streams", p_demux->i_streams );
153 input_AddInfo( p_cat, "Number of streams", "%d" , p_demux->i_streams );
156 /* create one program */
157 vlc_mutex_lock( &p_input->stream.stream_lock );
158 if( input_InitStream( p_input, 0 ) == -1)
160 vlc_mutex_unlock( &p_input->stream.stream_lock );
161 msg_Err( p_input, "cannot init stream" );
164 if( input_AddProgram( p_input, 0, 0) == NULL )
166 vlc_mutex_unlock( &p_input->stream.stream_lock );
167 msg_Err( p_input, "cannot add program" );
170 p_input->stream.p_selected_program = p_input->stream.pp_programs[0];
171 p_input->stream.i_mux_rate = 0 ; /* FIXME */
172 vlc_mutex_unlock( &p_input->stream.stream_lock );
174 for( i_stream = 0; i_stream < p_demux->i_streams; i_stream ++ )
176 asf_stream_t *p_stream;
177 asf_object_stream_properties_t *p_sp;
178 char psz_cat[sizeof("Stream ")+10];
179 input_info_category_t *p_cat;
180 sprintf( psz_cat, "Stream %d", i_stream );
181 p_cat = input_InfoCategory( p_input, psz_cat);
183 p_sp = ASF_FindObject( p_demux->root.p_hdr,
184 &asf_object_stream_properties_guid,
188 p_demux->stream[p_sp->i_stream_number] =
189 malloc( sizeof( asf_stream_t ) );
190 memset( p_stream, 0, sizeof( asf_stream_t ) );
191 p_stream->p_sp = p_sp;
193 vlc_mutex_lock( &p_input->stream.stream_lock );
195 input_AddES( p_input,
196 p_input->stream.p_selected_program,
197 p_sp->i_stream_number,
200 vlc_mutex_unlock( &p_input->stream.stream_lock );
201 if( CmpGUID( &p_sp->i_stream_type, &asf_object_stream_type_audio ) )
204 if( p_sp->p_type_specific_data )
206 i_codec = GetWLE( p_sp->p_type_specific_data );
213 p_stream->i_cat = AUDIO_ES;
214 input_AddInfo( p_cat, "Type", "Audio" );
216 "adding new audio stream(codec:0x%x,ID:%d)",
218 p_sp->i_stream_number );
222 p_stream->p_es->i_fourcc =
223 VLC_FOURCC( 'a', 'r', 'a', 'w' );
227 p_stream->p_es->i_fourcc =
228 VLC_FOURCC( 'm','p','g','a' );
231 p_stream->p_es->i_fourcc =
232 VLC_FOURCC( 'a','5','2',' ' );
235 p_stream->p_es->i_fourcc =
236 VLC_FOURCC( 'w','m','a','1' );
239 p_stream->p_es->i_fourcc =
240 VLC_FOURCC( 'w','m','a','2' );
243 p_stream->p_es->i_fourcc =
244 VLC_FOURCC( 'm','s',(i_codec >> 8)&0xff,i_codec&0xff );
246 input_AddInfo( p_cat, "Codec", "%.4s", (char*)&p_stream->p_es->i_fourcc );
247 if( p_sp->i_type_specific_data_length > 0 )
253 i_size = p_sp->i_type_specific_data_length;
255 p_wf = malloc( i_size );
256 p_stream->p_es->p_waveformatex = (void*)p_wf;
257 p_data = p_sp->p_type_specific_data;
259 p_wf->wFormatTag = GetWLE( p_data );
260 p_wf->nChannels = GetWLE( p_data + 2 );
261 input_AddInfo( p_cat, "Channels", "%d", p_wf->nChannels );
262 p_wf->nSamplesPerSec = GetDWLE( p_data + 4 );
263 input_AddInfo( p_cat, "Sample rate", "%d", p_wf->nSamplesPerSec );
264 p_wf->nAvgBytesPerSec = GetDWLE( p_data + 8 );
265 input_AddInfo( p_cat, "Avg. byterate", "%d", p_wf->nAvgBytesPerSec );
266 p_wf->nBlockAlign = GetWLE( p_data + 12 );
267 p_wf->wBitsPerSample = GetWLE( p_data + 14 );
268 input_AddInfo( p_cat, "Bits Per Sample", "%d", p_wf->wBitsPerSample );
269 p_wf->cbSize = __MAX( 0,
270 i_size - sizeof( WAVEFORMATEX ));
271 if( i_size > sizeof( WAVEFORMATEX ) )
273 memcpy( (uint8_t*)p_wf + sizeof( WAVEFORMATEX ),
274 p_data + sizeof( WAVEFORMATEX ),
275 i_size - sizeof( WAVEFORMATEX ) );
281 if( CmpGUID( &p_sp->i_stream_type, &asf_object_stream_type_video ) )
283 p_stream->i_cat = VIDEO_ES;
284 input_AddInfo( p_cat, "Type", "Video" );
286 "adding new video stream(ID:%d)",
287 p_sp->i_stream_number );
288 if( p_sp->p_type_specific_data )
290 p_stream->p_es->i_fourcc =
291 VLC_FOURCC( p_sp->p_type_specific_data[27],
292 p_sp->p_type_specific_data[28],
293 p_sp->p_type_specific_data[29],
294 p_sp->p_type_specific_data[30] );
298 p_stream->p_es->i_fourcc =
299 VLC_FOURCC( 'u','n','d','f' );
301 input_AddInfo( p_cat, "Codec", "%.4s", (char*)&p_stream->p_es->i_fourcc );
302 if( p_sp->i_type_specific_data_length > 11 )
304 BITMAPINFOHEADER *p_bih;
308 i_size = p_sp->i_type_specific_data_length - 11;
310 p_bih = malloc( i_size );
311 p_stream->p_es->p_bitmapinfoheader = (void*)p_bih;
312 p_data = p_sp->p_type_specific_data + 11;
314 p_bih->biSize = GetDWLE( p_data );
315 input_AddInfo( p_cat, "Size", "%d", p_bih->biSize );
316 p_bih->biWidth = GetDWLE( p_data + 4 );
317 p_bih->biHeight = GetDWLE( p_data + 8 );
318 input_AddInfo( p_cat, "Resolution", "%dx%d", p_bih->biWidth, p_bih->biHeight );
319 p_bih->biPlanes = GetDWLE( p_data + 12 );
320 input_AddInfo( p_cat, "Planes", "%d", p_bih->biPlanes );
321 p_bih->biBitCount = GetDWLE( p_data + 14 );
322 input_AddInfo( p_cat, "Bits per pixel", "%d", p_bih->biBitCount );
323 p_bih->biCompression= GetDWLE( p_data + 16 );
324 input_AddInfo( p_cat, "Compression Rate", "%d", p_bih->biCompression );
325 p_bih->biSizeImage = GetDWLE( p_data + 20 );
326 input_AddInfo( p_cat, "Image Size", "%d", p_bih->biSizeImage );
327 p_bih->biXPelsPerMeter = GetDWLE( p_data + 24 );
328 input_AddInfo( p_cat, "X pixels per meter", "%d", p_bih->biXPelsPerMeter );
329 p_bih->biYPelsPerMeter = GetDWLE( p_data + 28 );
330 input_AddInfo( p_cat, "Y pixels per meter", "%d", p_bih->biYPelsPerMeter );
331 p_bih->biClrUsed = GetDWLE( p_data + 32 );
332 p_bih->biClrImportant = GetDWLE( p_data + 36 );
334 if( i_size > sizeof( BITMAPINFOHEADER ) )
336 memcpy( (uint8_t*)p_bih + sizeof( BITMAPINFOHEADER ),
337 p_data + sizeof( BITMAPINFOHEADER ),
338 i_size - sizeof( BITMAPINFOHEADER ) );
345 p_stream->i_cat = UNKNOWN_ES;
347 "ignoring unknown stream(ID:%d)",
348 p_sp->i_stream_number );
349 p_stream->p_es->i_fourcc = VLC_FOURCC( 'u','n','d','f' );
351 p_stream->p_es->i_cat = p_stream->i_cat;
353 vlc_mutex_lock( &p_input->stream.stream_lock );
354 if( p_stream->p_es->i_fourcc != VLC_FOURCC( 'u','n','d','f' ) )
356 input_SelectES( p_input, p_stream->p_es );
358 vlc_mutex_unlock( &p_input->stream.stream_lock );
362 p_demux->i_data_begin = p_demux->root.p_data->i_object_pos + 50;
363 if( p_demux->root.p_data->i_object_size != 0 )
365 p_demux->i_data_end = p_demux->root.p_data->i_object_pos +
366 p_demux->root.p_data->i_object_size;
370 p_demux->i_data_end = -1;
374 // go to first packet
375 ASF_SeekAbsolute( p_input, p_demux->i_data_begin );
377 vlc_mutex_lock( &p_input->stream.stream_lock );
378 /* try to calculate movie time */
379 if( p_demux->p_fp->i_data_packets_count > 0 )
384 /* real number of packets */
385 i_count = ( p_input->stream.p_selected_area->i_size -
386 p_demux->i_data_begin ) /
387 p_demux->p_fp->i_min_data_packet_size;
388 /* calculate the time duration in s */
389 i_length = (mtime_t)p_demux->p_fp->i_play_duration / 10 *
391 (mtime_t)p_demux->p_fp->i_data_packets_count /
395 p_input->stream.i_mux_rate =
396 p_input->stream.p_selected_area->i_size / 50 / i_length;
400 p_input->stream.i_mux_rate = 0;
407 p_input->stream.i_mux_rate = 0;
412 p_input->stream.p_selected_program->b_is_ok = 1;
413 vlc_mutex_unlock( &p_input->stream.stream_lock );
420 static mtime_t GetMoviePTS( demux_sys_t *p_demux )
426 for( i_stream = 0; i_stream < 128 ; i_stream++ )
428 #define p_stream p_demux->stream[i_stream]
429 if( p_stream && p_stream->p_es && p_stream->p_es->p_decoder_fifo && p_stream->i_time > 0)
433 i_time = p_stream->i_time;
437 i_time = __MIN( i_time, p_stream->i_time );
446 /*****************************************************************************
447 * Demux: read packet and send them to decoders
448 *****************************************************************************/
449 #define GETVALUE2b( bits, var, def ) \
450 switch( (bits)&0x03 ) \
452 case 1: var = p_peek[i_skip]; i_skip++; break; \
453 case 2: var = GetWLE( p_peek + i_skip ); i_skip+= 2; break; \
454 case 3: var = GetDWLE( p_peek + i_skip ); i_skip+= 4; break; \
456 default: var = def; break;\
459 static int DemuxPacket( input_thread_t *p_input, vlc_bool_t b_play_audio )
461 demux_sys_t *p_demux = p_input->p_demux_data;
462 int i_data_packet_min = p_demux->p_fp->i_min_data_packet_size;
466 int i_packet_size_left;
468 int i_packet_property;
470 int b_packet_multiple_payload;
472 int i_packet_sequence;
473 int i_packet_padding_length;
475 uint32_t i_packet_send_time;
476 uint16_t i_packet_duration;
479 int i_payload_length_type;
482 if( input_Peek( p_input, &p_peek, i_data_packet_min ) < i_data_packet_min )
485 msg_Warn( p_input, "cannot peek while getting new packet, EOF ?" );
490 /* *** parse error correction if present *** */
493 unsigned int i_error_correction_length_type;
494 unsigned int i_error_correction_data_length;
495 unsigned int i_opaque_data_present;
497 i_error_correction_data_length = p_peek[0] & 0x0f; // 4bits
498 i_opaque_data_present = ( p_peek[0] >> 4 )& 0x01; // 1bit
499 i_error_correction_length_type = ( p_peek[0] >> 5 ) & 0x03; // 2bits
500 i_skip += 1; // skip error correction flags
502 if( i_error_correction_length_type != 0x00 ||
503 i_opaque_data_present != 0 ||
504 i_error_correction_data_length != 0x02 )
506 goto loop_error_recovery;
509 i_skip += i_error_correction_data_length;
513 msg_Warn( p_input, "p_peek[0]&0x80 != 0x80" );
517 if( i_skip + 2 >= i_data_packet_min )
519 goto loop_error_recovery;
522 i_packet_flags = p_peek[i_skip]; i_skip++;
523 i_packet_property = p_peek[i_skip]; i_skip++;
525 b_packet_multiple_payload = i_packet_flags&0x01;
527 /* read some value */
528 GETVALUE2b( i_packet_flags >> 5, i_packet_length, i_data_packet_min );
529 GETVALUE2b( i_packet_flags >> 1, i_packet_sequence, 0 );
530 GETVALUE2b( i_packet_flags >> 3, i_packet_padding_length, 0 );
532 i_packet_send_time = GetDWLE( p_peek + i_skip ); i_skip += 4;
533 i_packet_duration = GetWLE( p_peek + i_skip ); i_skip += 2;
535 // i_packet_size_left = i_packet_length; // XXX données reellement lu
536 /* FIXME I have to do that for some file, I don't known why */
537 i_packet_size_left = i_data_packet_min;
539 if( b_packet_multiple_payload )
541 i_payload_count = p_peek[i_skip] & 0x3f;
542 i_payload_length_type = ( p_peek[i_skip] >> 6 )&0x03;
548 i_payload_length_type = 0x02; // unused
551 for( i_payload = 0; i_payload < i_payload_count ; i_payload++ )
553 asf_stream_t *p_stream;
556 int i_media_object_number;
557 int i_media_object_offset;
558 int i_replicated_data_length;
559 int i_payload_data_length;
560 int i_payload_data_pos;
561 int i_sub_payload_data_length;
567 if( i_skip >= i_packet_size_left )
569 /* prevent some segfault with invalid file */
573 i_stream_number = p_peek[i_skip] & 0x7f;
576 GETVALUE2b( i_packet_property >> 4, i_media_object_number, 0 );
577 GETVALUE2b( i_packet_property >> 2, i_tmp, 0 );
578 GETVALUE2b( i_packet_property, i_replicated_data_length, 0 );
580 if( i_replicated_data_length > 1 ) // should be at least 8 bytes
582 i_pts = (mtime_t)GetDWLE( p_peek + i_skip + 4 ) * 1000;
583 i_skip += i_replicated_data_length;
586 i_media_object_offset = i_tmp;
588 if( i_skip >= i_packet_size_left )
593 else if( i_replicated_data_length == 1 )
596 msg_Dbg( p_input, "found compressed payload" );
598 i_pts = (mtime_t)i_tmp * 1000;
599 i_pts_delta = (mtime_t)p_peek[i_skip] * 1000; i_skip++;
601 i_media_object_offset = 0;
605 i_pts = (mtime_t)i_packet_send_time * 1000;
608 i_media_object_offset = i_tmp;
611 i_pts = __MAX( i_pts - p_demux->p_fp->i_preroll * 1000, 0 );
612 if( b_packet_multiple_payload )
614 GETVALUE2b( i_payload_length_type, i_payload_data_length, 0 );
618 i_payload_data_length = i_packet_length -
619 i_packet_padding_length - i_skip;
622 if( i_payload_data_length < 0 || i_skip + i_payload_data_length > i_packet_size_left )
629 "payload(%d/%d) stream_number:%d media_object_number:%d media_object_offset:%d replicated_data_length:%d payload_data_length %d",
633 i_media_object_number,
634 i_media_object_offset,
635 i_replicated_data_length,
636 i_payload_data_length );
639 if( !( p_stream = p_demux->stream[i_stream_number] ) )
642 "undeclared stream[Id 0x%x]", i_stream_number );
643 i_skip += i_payload_data_length;
644 continue; // over payload
647 if( !p_stream->p_es || !p_stream->p_es->p_decoder_fifo )
649 i_skip += i_payload_data_length;
654 for( i_payload_data_pos = 0;
655 i_payload_data_pos < i_payload_data_length &&
656 i_packet_size_left > 0;
657 i_payload_data_pos += i_sub_payload_data_length )
659 data_packet_t *p_data;
661 // read sub payload length
662 if( i_replicated_data_length == 1 )
664 i_sub_payload_data_length = p_peek[i_skip]; i_skip++;
665 i_payload_data_pos++;
669 i_sub_payload_data_length = i_payload_data_length;
672 /* FIXME I don't use i_media_object_number, sould I ? */
673 if( p_stream->p_pes && i_media_object_offset == 0 ) {
674 /* send complete packet to decoder */
675 if( p_stream->p_pes->i_pes_size > 0 )
677 if( p_stream->p_es->p_decoder_fifo &&
678 ( b_play_audio || p_stream->i_cat != AUDIO_ES ) )
680 input_DecodePES( p_stream->p_es->p_decoder_fifo,
685 input_DeletePES( p_input->p_method_data,
688 p_stream->p_pes = NULL;
692 if( !p_stream->p_pes ) // add a new PES
695 ( (mtime_t)i_pts + i_payload * (mtime_t)i_pts_delta );
697 p_stream->p_pes = input_NewPES( p_input->p_method_data );
698 p_stream->p_pes->i_dts =
699 p_stream->p_pes->i_pts =
700 input_ClockGetTS( p_input,
701 p_input->stream.p_selected_program,
702 p_stream->i_time * 9 /100 );
704 p_stream->p_pes->p_next = NULL;
705 p_stream->p_pes->i_nb_data = 0;
706 p_stream->p_pes->i_pes_size = 0;
709 i_read = i_sub_payload_data_length + i_skip;
710 if( input_SplitBuffer( p_input, &p_data, i_read ) < i_read )
712 msg_Warn( p_input, "cannot read data" );
715 p_data->p_payload_start += i_skip;
716 i_packet_size_left -= i_read;
719 if( !p_stream->p_pes->p_first )
721 p_stream->p_pes->p_first = p_stream->p_pes->p_last = p_data;
725 p_stream->p_pes->p_last->p_next = p_data;
726 p_stream->p_pes->p_last = p_data;
728 p_stream->p_pes->i_pes_size += i_sub_payload_data_length;
729 p_stream->p_pes->i_nb_data++;
732 if( i_packet_size_left > 0 )
734 if( input_Peek( p_input, &p_peek, i_packet_size_left ) < i_packet_size_left )
737 msg_Warn( p_input, "cannot peek, EOF ?" );
744 if( i_packet_size_left > 0 )
746 if( !ASF_SkipBytes( p_input, i_packet_size_left ) )
748 msg_Warn( p_input, "cannot skip data, EOF ?" );
756 msg_Warn( p_input, "unsupported packet header" );
757 if( p_demux->p_fp->i_min_data_packet_size != p_demux->p_fp->i_max_data_packet_size )
759 msg_Err( p_input, "unsupported packet header, fatal error" );
762 ASF_SkipBytes( p_input, i_data_packet_min );
767 static int Demux( input_thread_t *p_input )
769 demux_sys_t *p_demux = p_input->p_demux_data;
770 vlc_bool_t b_play_audio;
773 /* catch seek from user */
774 if( p_input->stream.p_selected_program->i_synchro_state == SYNCHRO_REINIT )
778 msleep( DEFAULT_PTS_DELAY );
779 i_offset = ASF_TellAbsolute( p_input ) - p_demux->i_data_begin;
785 /* XXX work only when i_min_data_packet_size == i_max_data_packet_size */
786 i_offset += p_demux->p_fp->i_min_data_packet_size -
787 i_offset % p_demux->p_fp->i_min_data_packet_size;
788 ASF_SeekAbsolute( p_input, p_demux->i_data_begin + i_offset );
790 p_demux->i_time = -1;
791 for( i = 0; i < 128 ; i++ )
793 #define p_stream p_demux->stream[i]
796 p_stream->i_time = -1;
802 vlc_mutex_lock( &p_input->stream.stream_lock );
803 if( p_input->stream.control.i_rate == DEFAULT_RATE )
805 b_play_audio = VLC_TRUE;
811 b_play_audio = VLC_TRUE;
812 for( i = 0; i < 128; i++ )
814 if( p_demux->stream[i] &&
815 p_demux->stream[i]->i_cat == VIDEO_ES &&
816 p_demux->stream[i]->p_es &&
817 p_demux->stream[i]->p_es->p_decoder_fifo )
819 /* there is at least ine video track so no need to play audio */
820 b_play_audio = VLC_FALSE;
824 vlc_mutex_unlock( &p_input->stream.stream_lock );
829 mtime_t i_time_begin = GetMoviePTS( p_demux );
832 if( ( i_result = DemuxPacket( p_input, b_play_audio ) ) <= 0 )
836 if( i_time_begin == -1 )
838 i_time_begin = GetMoviePTS( p_demux );
842 i_length = GetMoviePTS( p_demux ) - i_time_begin;
843 if( i_length < 0 || i_length >= 40 * 1000 )
850 p_demux->i_time = GetMoviePTS( p_demux );
851 if( p_demux->i_time >= 0 )
853 /* update pcr XXX in mpeg scale so in 90000 unit/s */
854 p_demux->i_pcr = p_demux->i_time * 9 / 100;
856 /* first wait for the good time to read next packets */
857 input_ClockManageRef( p_input,
858 p_input->stream.p_selected_program,
865 /*****************************************************************************
866 * MP4End: frees unused data
867 *****************************************************************************/
868 static void Deactivate( vlc_object_t * p_this )
871 if( p ) { free( p ); }
873 input_thread_t * p_input = (input_thread_t *)p_this;
874 demux_sys_t *p_demux = p_input->p_demux_data;
877 msg_Dbg( p_input, "Freeing all memory" );
878 ASF_FreeObjectRoot( p_input, &p_demux->root );
879 for( i_stream = 0; i_stream < 128; i_stream++ )
881 #define p_stream p_demux->stream[i_stream]
884 if( p_stream->p_pes )
886 input_DeletePES( p_input->p_method_data, p_stream->p_pes );
892 FREE( p_input->p_demux_data );