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https://github.com/mpv-player/mpv
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fadce2d781
Based on Bernard Leak's mail <bernard 4t brenda-arkle.demon.co.uk> git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@11001 b3059339-0415-0410-9bf9-f77b7e298cf2
1057 lines
31 KiB
C
1057 lines
31 KiB
C
/*
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* tivo@wingert.org, February 2003
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*
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* Copyright (C) 2003 Christopher R. Wingert
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*
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* The license covers the portions of this file regarding TiVo additions.
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*
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* Olaf Beck and Tridge (indirectly) were essential at providing
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* information regarding the format of the TiVo streams.
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*
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* However, no code in the following subsection is directly copied from
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* either author.
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <time.h>
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#include <stdarg.h>
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#include "config.h"
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#include "mp_msg.h"
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#include "help_mp.h"
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#include "stream.h"
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#include "demuxer.h"
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#include "parse_es.h"
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#include "stheader.h"
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//#include "mp3_hdr.h"
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//#include "../subreader.h"
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#include "../sub_cc.h"
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//#include "../libvo/sub.h"
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//#include "dvdauth.h"
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extern void resync_audio_stream( sh_audio_t *sh_audio );
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extern void skip_audio_frame( sh_audio_t *sh_audio );
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extern int sub_justify;
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// 2/c0: audio data
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// 3/c0: audio packet header (PES header)
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// 4/c0: audio data (S/A only?)
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// 9/c0: audio packet header, AC-3 audio
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// 2/e0: video data
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// 6/e0: video packet header (PES header)
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// 7/e0: video sequence header start
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// 8/e0: video I-frame header start
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// a/e0: video P-frame header start
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// b/e0: video B-frame header start
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// c/e0: video GOP header start
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// e/01: closed-caption data
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// e/02: Extended data services data
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#define TIVO_PES_FILEID ( 0xf5467abd )
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#define TIVO_PART_LENGTH ( 0x20000000 )
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#define CHUNKSIZE ( 128 * 1024 )
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#define MAX_AUDIO_BUFFER ( 16 * 1024 )
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#define PTS_MHZ ( 90 )
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#define PTS_KHZ ( PTS_MHZ * 1000 )
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#define TY_V ( 1 )
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#define TY_A ( 1 )
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typedef struct sTivoInfo
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{
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unsigned char lastAudio[ MAX_AUDIO_BUFFER ];
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int lastAudioEnd;
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int tivoType; // 1 = SA, 2 = DTiVo
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float firstAudioPTS;
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float firstVideoPTS;
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float lastAudioPTS;
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float lastVideoPTS;
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int headerOk;
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unsigned int pesFileId; // Should be 0xf5467abd
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int streamType; // Should be 0x02
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int chunkSize; // Should always be 128k
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off_t size;
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int readHeader;
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} TiVoInfo;
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off_t vstream_streamsize( );
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void ty_ClearOSD( int start );
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// DTiVo MPEG 336, 480, 576, 768
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// SA TiVo 864
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// DTiVo AC-3 1550
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//
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#define SERIES1_PTS_LENGTH ( 11 )
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#define SERIES1_PTS_OFFSET ( 6 )
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#define SERIES2_PTS_LENGTH ( 16 )
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#define SERIES2_PTS_OFFSET ( 9 )
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#define AC3_PTS_LENGTH ( 16 )
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#define AC3_PTS_OFFSET ( 9 )
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#define NUMBER_DIFFERENT_AUDIO_SIZES ( 6 )
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static int Series1AudioWithPTS[ NUMBER_DIFFERENT_AUDIO_SIZES ] =
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{
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336 + SERIES1_PTS_LENGTH,
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480 + SERIES1_PTS_LENGTH,
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576 + SERIES1_PTS_LENGTH,
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768 + SERIES1_PTS_LENGTH,
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864 + SERIES1_PTS_LENGTH
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};
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static int Series2AudioWithPTS[ NUMBER_DIFFERENT_AUDIO_SIZES ] =
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{
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336 + SERIES2_PTS_LENGTH,
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480 + SERIES2_PTS_LENGTH,
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576 + SERIES2_PTS_LENGTH,
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768 + SERIES2_PTS_LENGTH,
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864 + SERIES2_PTS_LENGTH
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};
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static int IsValidAudioPacket( int size, int *ptsOffset, int *ptsLen )
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{
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int count;
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*ptsOffset = 0;
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*ptsLen = 0;
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// AC-3
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if ( ( size == 1550 ) || ( size == 1552 ) )
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{
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*ptsOffset = AC3_PTS_OFFSET;
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*ptsLen = AC3_PTS_LENGTH;
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return( 1 );
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}
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// MPEG
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for( count = 0 ; count < NUMBER_DIFFERENT_AUDIO_SIZES ; count++ )
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{
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if ( size == Series1AudioWithPTS[ count ] )
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{
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*ptsOffset = SERIES1_PTS_OFFSET;
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*ptsLen = SERIES1_PTS_LENGTH;
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break;
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}
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}
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if ( *ptsOffset == 0 )
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{
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for( count = 0 ; count < NUMBER_DIFFERENT_AUDIO_SIZES ; count++ )
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{
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if ( size == Series2AudioWithPTS[ count ] )
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{
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*ptsOffset = SERIES2_PTS_OFFSET;
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*ptsLen = SERIES2_PTS_LENGTH;
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break;
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}
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}
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}
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if ( *ptsOffset == 0 )
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{
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mp_msg( MSGT_DEMUX, MSGL_DBG3, "ty:Tossing Audio Packet Size %d\n",
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size );
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return( 0 );
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}
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else
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{
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return( 1 );
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}
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}
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static float get_ty_pts( unsigned char *buf )
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{
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float result = 0;
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unsigned char temp;
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temp = ( buf[ 0 ] & 0xE ) >> 1;
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result = ( (float) temp ) * ( (float) ( 1L << 30 ) ) / ( (float)PTS_KHZ );
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temp = buf[ 1 ];
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result += ( (float) temp ) * ( (float) ( 1L << 22 ) ) / ( (float)PTS_KHZ );
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temp = ( buf[ 2 ] & 0xFE ) >> 1;
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result += ( (float) temp ) * ( (float) ( 1L << 15 ) ) / ( (float)PTS_KHZ );
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temp = buf[ 3 ];
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result += ( (float) temp ) * ( (float) ( 1L << 7 ) ) / ( (float)PTS_KHZ );
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temp = ( buf[ 4 ] & 0xFE ) >> 1;
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result += ( (float) temp ) / ( (float)PTS_MHZ );
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return result;
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}
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static void demux_ty_AddToAudioBuffer( TiVoInfo *tivo, unsigned char *buffer,
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int size )
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{
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if ( ( tivo->lastAudioEnd + size ) < MAX_AUDIO_BUFFER )
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{
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memcpy( &( tivo->lastAudio[ tivo->lastAudioEnd ] ),
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buffer, size );
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tivo->lastAudioEnd += size;
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}
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else
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{
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mp_msg( MSGT_DEMUX, MSGL_ERR,
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"ty:WARNING - Would have blown my audio buffer\n" );
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}
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}
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static void demux_ty_CopyToDemuxPacket( int type, TiVoInfo *tivo, demux_stream_t *ds,
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unsigned char *buffer, int size, off_t pos, float pts )
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{
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demux_packet_t *dp;
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// mp_msg( MSGT_DEMUX, MSGL_DBG3, "ty:Calling ds_add_packet() %7.1f\n", pts );
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// printf( "%x %x %x %x\n",
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// buffer[ 0 ], buffer[ 1 ], buffer[ 2 ], buffer[ 3 ] );
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dp = new_demux_packet( size );
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memcpy( dp->buffer, buffer, size );
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dp->pts = pts;
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dp->pos = pos;
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dp->flags = 0;
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ds_add_packet( ds, dp );
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ds->pts = pts;
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if ( type == TY_V )
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{
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if ( tivo->firstVideoPTS == -1 )
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{
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tivo->firstVideoPTS = pts;
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}
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}
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if ( type == TY_A )
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{
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if ( tivo->firstAudioPTS == -1 )
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{
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tivo->firstAudioPTS = pts;
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}
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}
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}
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static int demux_ty_FindESHeader( unsigned char *header, int headerSize,
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unsigned char *buffer, int bufferSize, int *esOffset1 )
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{
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int count;
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*esOffset1 = -1;
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for( count = 0 ; count < bufferSize ; count++ )
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{
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if ( ( buffer[ count + 0 ] == header[ 0 ] ) &&
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( buffer[ count + 1 ] == header[ 1 ] ) &&
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( buffer[ count + 2 ] == header[ 2 ] ) &&
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( buffer[ count + 3 ] == header[ 3 ] ) )
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{
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*esOffset1 = count;
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return( 1 );
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}
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}
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return( -1 );
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}
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static void demux_ty_FindESPacket( unsigned char *header, int headerSize,
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unsigned char *buffer, int bufferSize, int *esOffset1, int *esOffset2 )
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{
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int count;
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*esOffset1 = -1;
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*esOffset2 = -1;
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for( count = 0 ; count < bufferSize ; count++ )
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{
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if ( ( buffer[ count + 0 ] == header[ 0 ] ) &&
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( buffer[ count + 1 ] == header[ 1 ] ) &&
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( buffer[ count + 2 ] == header[ 2 ] ) &&
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( buffer[ count + 3 ] == header[ 3 ] ) )
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{
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*esOffset1 = count;
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break;
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}
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}
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if ( *esOffset1 != -1 )
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{
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for( count = *esOffset1 + 1 ;
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count < bufferSize ; count++ )
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{
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if ( ( buffer[ count + 0 ] == header[ 0 ] ) &&
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( buffer[ count + 1 ] == header[ 1 ] ) &&
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( buffer[ count + 2 ] == header[ 2 ] ) &&
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( buffer[ count + 3 ] == header[ 3 ] ) )
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{
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*esOffset2 = count;
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break;
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}
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}
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}
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}
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static int tivobuffer2hostlong( unsigned char *buffer )
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{
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return
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(
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buffer[ 0 ] << 24 | buffer[ 1 ] << 16 | buffer[ 2 ] << 8 | buffer[ 3 ]
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);
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}
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static unsigned char tivo_reversebyte( unsigned char val )
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{
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int count;
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unsigned char ret;
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ret = 0;
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for ( count = 0 ; count < 8 ; count++ )
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{
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ret = ret << 1;
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ret |= ( ( val >> count ) & 0x01 );
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}
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return( ret );
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}
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static unsigned char ty_VideoPacket[] = { 0x00, 0x00, 0x01, 0xe0 };
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static unsigned char ty_MPEGAudioPacket[] = { 0x00, 0x00, 0x01, 0xc0 };
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static unsigned char ty_AC3AudioPacket[] = { 0x00, 0x00, 0x01, 0xbd };
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int demux_ty_fill_buffer( demuxer_t *demux )
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{
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int invalidType = 0;
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int errorHeader = 0;
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int recordsDecoded = 0;
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off_t filePos = 0;
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unsigned char chunk[ CHUNKSIZE ];
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int whichChunk;
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int readSize;
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unsigned int pesFileId = 0;
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int numberRecs;
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unsigned char *recPtr;
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int offset;
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int size;
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int type;
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int nybbleType;
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int counter;
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int aid;
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demux_stream_t *ds = NULL;
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int esOffset1;
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int esOffset2;
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TiVoInfo *tivo = 0;
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if ( demux->stream->type == STREAMTYPE_DVD )
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{
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return( 0 );
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}
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mp_msg( MSGT_DEMUX, MSGL_DBG3, "ty:Parsing a chunk\n" );
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if ( ( demux->a_streams[ MAX_A_STREAMS - 1 ] ) == 0 )
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{
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demux->a_streams[ MAX_A_STREAMS - 1 ] = malloc( sizeof( TiVoInfo ) );
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tivo = demux->a_streams[ MAX_A_STREAMS - 1 ];
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memset( tivo, 0, sizeof( TiVoInfo ) );
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tivo->firstAudioPTS = -1;
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tivo->firstVideoPTS = -1;
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}
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else
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{
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tivo = demux->a_streams[ MAX_A_STREAMS - 1 ];
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}
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if( demux->stream->eof ) return 0;
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// ======================================================================
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// If we haven't figured out the size of the stream, let's do so
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// ======================================================================
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#ifdef STREAMTYPE_STREAM_TY
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if ( demux->stream->type == STREAMTYPE_STREAM_TY )
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{
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// The vstream code figures out the exact size of the stream
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demux->movi_start = 0;
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demux->movi_end = vstream_streamsize();
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tivo->size = vstream_streamsize();
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}
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else
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#endif
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{
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// If its a local file, try to find the Part Headers, so we can
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// calculate the ACTUAL stream size
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// If we can't find it, go off with the file size and hope the
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// extract program did the "right thing"
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if ( tivo->readHeader == 0 )
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{
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tivo->readHeader = 1;
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filePos = demux->filepos;
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stream_seek( demux->stream, 0 );
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// mp_msg( MSGT_DEMUX, MSGL_DBG3,
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// "ty:Reading a chunk %d\n", __LINE__ );
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readSize = stream_read( demux->stream, chunk, CHUNKSIZE );
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if ( readSize == CHUNKSIZE )
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{
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tivo->pesFileId = tivobuffer2hostlong( &chunk[ 0x00 ] );
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tivo->streamType = tivobuffer2hostlong( &chunk[ 0x04 ] );
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tivo->chunkSize = tivobuffer2hostlong( &chunk[ 0x08 ] );
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tivo->size = tivobuffer2hostlong( &chunk[ 0x0c ] );
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if ( tivo->pesFileId == TIVO_PES_FILEID )
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{
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off_t numberParts;
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off_t size;
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if ( demux->stream->end_pos > TIVO_PART_LENGTH )
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{
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numberParts = demux->stream->end_pos / TIVO_PART_LENGTH;
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mp_msg( MSGT_DEMUX, MSGL_DBG3, "ty:Number Parts %d\n",
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numberParts );
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stream_seek( demux->stream, numberParts * TIVO_PART_LENGTH );
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// mp_msg( MSGT_DEMUX, MSGL_DBG3,
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// "ty:Reading a chunk %d\n", __LINE__ );
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readSize = stream_read( demux->stream, chunk, CHUNKSIZE );
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pesFileId = tivobuffer2hostlong( &chunk[ 0x00 ] );
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if ( pesFileId == TIVO_PES_FILEID )
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{
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size = tivobuffer2hostlong( &chunk[ 0x0c ] );
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size /= 256;
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size -= 4;
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size *= CHUNKSIZE;
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tivo->size = numberParts * TIVO_PART_LENGTH;
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tivo->size += size;
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mp_msg( MSGT_DEMUX, MSGL_DBG3,
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"ty:Header Calc Stream Size %lld\n", tivo->size );
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}
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else
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{
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tivo->size = demux->stream->end_pos;
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}
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}
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else
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{
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tivo->size = demux->stream->end_pos;
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}
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}
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else
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{
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tivo->size = demux->stream->end_pos;
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}
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}
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if ( tivo->size > demux->stream->end_pos )
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{
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tivo->size = demux->stream->end_pos;
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}
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if ( demux->stream->start_pos > 0 )
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{
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filePos = demux->stream->start_pos;
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}
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stream_seek( demux->stream, filePos );
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demux->filepos = stream_tell( demux->stream );
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}
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demux->movi_start = 0;
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demux->movi_end = tivo->size;
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}
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// ======================================================================
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// Give a clue as to where we are in the stream
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// ======================================================================
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mp_msg( MSGT_DEMUX, MSGL_DBG3,
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"ty:ty header size %llx\n", tivo->size );
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mp_msg( MSGT_DEMUX, MSGL_DBG3,
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"ty:file end_pos %llx\n", demux->stream->end_pos );
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// mp_msg( MSGT_DEMUX, MSGL_DBG3,
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// "ty:vstream size %llx\n", vstream_streamsize() );
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mp_msg( MSGT_DEMUX, MSGL_DBG3,
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"\nty:wanted current offset %llx\n", stream_tell( demux->stream ) );
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if ( tivo->size > 0 )
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{
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if ( stream_tell( demux->stream ) > tivo->size )
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{
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demux->stream->eof = 1;
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return( 0 );
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}
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}
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// Make sure we are on a 128k boundary
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if ( ( demux->filepos % CHUNKSIZE ) != 0 )
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{
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whichChunk = demux->filepos / CHUNKSIZE;
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if ( ( demux->filepos % CHUNKSIZE ) > ( CHUNKSIZE / 2 ) )
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{
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whichChunk++;
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}
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stream_seek( demux->stream, ( whichChunk * CHUNKSIZE ) );
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}
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demux->filepos = stream_tell( demux->stream );
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readSize = stream_read( demux->stream, chunk, CHUNKSIZE );
|
|
if ( readSize != CHUNKSIZE )
|
|
{
|
|
return( 0 );
|
|
}
|
|
|
|
// We found a part header, skip it
|
|
pesFileId = tivobuffer2hostlong( &chunk[ 0x00 ] );
|
|
if( pesFileId == TIVO_PES_FILEID )
|
|
{
|
|
demux->filepos = stream_tell( demux->stream );
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3, "ty:Skipping PART Header\n" );
|
|
readSize = stream_read( demux->stream, chunk, CHUNKSIZE );
|
|
if ( readSize != CHUNKSIZE )
|
|
{
|
|
return( 0 );
|
|
}
|
|
}
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3,
|
|
"\nty:actual current offset %llx\n", ( stream_tell( demux->stream ) -
|
|
0x20000 ) );
|
|
|
|
|
|
// Let's make a Video Demux Stream for Mplayer
|
|
aid = 0x0;
|
|
if( !demux->v_streams[ aid ] ) new_sh_video( demux, aid );
|
|
if( demux->video->id == -1 ) demux->video->id = aid;
|
|
if( demux->video->id == aid )
|
|
{
|
|
ds = demux->video;
|
|
if( !ds->sh ) ds->sh = demux->v_streams[ aid ];
|
|
}
|
|
|
|
// ======================================================================
|
|
// Finally, we get to actually parse the chunk
|
|
// ======================================================================
|
|
numberRecs = chunk[ 0 ];
|
|
recPtr = &chunk[ 4 ];
|
|
offset = ( numberRecs * 16 ) + 4;
|
|
for ( counter = 0 ; counter < numberRecs ; counter++ )
|
|
{
|
|
size = ( recPtr[ 0 ] << 8 | recPtr[ 1 ] ) << 4 | ( recPtr[ 2 ] >> 4 );
|
|
type = recPtr[ 3 ];
|
|
nybbleType = recPtr[ 2 ] & 0x0f;
|
|
recordsDecoded++;
|
|
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3,
|
|
"ty:Record Type %x/%x %d\n", nybbleType, type, size );
|
|
|
|
// ================================================================
|
|
// Video Parsing
|
|
// ================================================================
|
|
if ( type == 0xe0 )
|
|
{
|
|
if ( ( size > 0 ) && ( ( size + offset ) <= CHUNKSIZE ) )
|
|
{
|
|
#if 0
|
|
printf( "Video Chunk Header " );
|
|
for( count = 0 ; count < 24 ; count++ )
|
|
{
|
|
printf( "%2.2x ", chunk[ offset + count ] );
|
|
}
|
|
printf( "\n" );
|
|
#endif
|
|
demux_ty_FindESHeader( ty_VideoPacket, 4, &chunk[ offset ],
|
|
size, &esOffset1 );
|
|
if ( esOffset1 != -1 )
|
|
{
|
|
tivo->lastVideoPTS = get_ty_pts(
|
|
&chunk[ offset + esOffset1 + 9 ] );
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3, "Video PTS %7.1f\n",
|
|
tivo->lastVideoPTS );
|
|
}
|
|
|
|
// Do NOT Pass the PES Header onto the MPEG2 Decode
|
|
if( nybbleType != 0x06 )
|
|
{
|
|
demux_ty_CopyToDemuxPacket( TY_V, tivo, demux->video,
|
|
&chunk[ offset ], size, ( demux->filepos + offset ),
|
|
tivo->lastVideoPTS );
|
|
}
|
|
offset += size;
|
|
}
|
|
else
|
|
{
|
|
errorHeader++;
|
|
}
|
|
}
|
|
// ================================================================
|
|
// Audio Parsing
|
|
// ================================================================
|
|
else if ( type == 0xc0 )
|
|
{
|
|
if ( ( size > 0 ) && ( ( size + offset ) <= CHUNKSIZE ) )
|
|
{
|
|
#if 0
|
|
printf( "Audio Chunk Header " );
|
|
for( count = 0 ; count < 24 ; count++ )
|
|
{
|
|
printf( "%2.2x ", chunk[ offset + count ] );
|
|
}
|
|
printf( "\n" );
|
|
#endif
|
|
|
|
if( demux->audio->id == -1 )
|
|
{
|
|
if ( nybbleType == 0x02 )
|
|
{
|
|
continue; // DTiVo inconclusive, wait for more
|
|
}
|
|
else if ( nybbleType == 0x09 )
|
|
{
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3, "ty:Setting AC-3 Audio\n" );
|
|
aid = 0x80; // AC-3
|
|
}
|
|
else
|
|
{
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3, "ty:Setting MPEG Audio\n" );
|
|
aid = 0x0; // MPEG Audio
|
|
}
|
|
|
|
demux->audio->id = aid;
|
|
if( !demux->a_streams[ aid ] ) new_sh_audio( demux, aid );
|
|
if( demux->audio->id == aid )
|
|
{
|
|
ds = demux->audio;
|
|
if( !ds->sh ) ds->sh = demux->a_streams[ aid ];
|
|
}
|
|
}
|
|
|
|
aid = demux->audio->id;
|
|
|
|
|
|
// SA DTiVo Audio Data, no PES
|
|
// ================================================
|
|
if ( nybbleType == 0x02 )
|
|
{
|
|
if ( tivo->tivoType == 2 )
|
|
{
|
|
demux_ty_AddToAudioBuffer( tivo, &chunk[ offset ], size );
|
|
}
|
|
else
|
|
{
|
|
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3,
|
|
"ty:Adding Audio Packet Size %d\n", size );
|
|
demux_ty_CopyToDemuxPacket( TY_A, tivo, demux->audio,
|
|
&chunk[ offset ], size, ( demux->filepos + offset ),
|
|
tivo->lastAudioPTS );
|
|
}
|
|
}
|
|
|
|
// MPEG Audio with PES Header, either SA or DTiVo
|
|
// ================================================
|
|
if ( nybbleType == 0x03 )
|
|
{
|
|
demux_ty_FindESHeader( ty_MPEGAudioPacket, 4, &chunk[ offset ],
|
|
size, &esOffset1 );
|
|
|
|
// SA PES Header, No Audio Data
|
|
// ================================================
|
|
if ( ( esOffset1 == 0 ) && ( size == 16 ) )
|
|
{
|
|
tivo->tivoType = 1;
|
|
tivo->lastAudioPTS = get_ty_pts( &chunk[ offset +
|
|
SERIES2_PTS_OFFSET ] );
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3, "SA Audio PTS %7.1f\n",
|
|
tivo->lastAudioPTS );
|
|
}
|
|
else
|
|
// DTiVo Audio with PES Header
|
|
// ================================================
|
|
{
|
|
tivo->tivoType = 2;
|
|
|
|
demux_ty_AddToAudioBuffer( tivo, &chunk[ offset ], size );
|
|
demux_ty_FindESPacket( ty_MPEGAudioPacket, 4,
|
|
tivo->lastAudio, tivo->lastAudioEnd, &esOffset1,
|
|
&esOffset2 );
|
|
|
|
if ( ( esOffset1 != -1 ) && ( esOffset2 != -1 ) )
|
|
{
|
|
int packetSize = esOffset2 - esOffset1;
|
|
int headerSize;
|
|
int ptsOffset;
|
|
|
|
if ( IsValidAudioPacket( packetSize, &ptsOffset,
|
|
&headerSize ) )
|
|
{
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3,
|
|
"ty:Adding DTiVo Audio Packet Size %d\n",
|
|
packetSize );
|
|
|
|
tivo->lastAudioPTS = get_ty_pts(
|
|
&tivo->lastAudio[ esOffset1 + ptsOffset ] );
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3,
|
|
"MPEG Audio PTS %7.1f\n", tivo->lastAudioPTS );
|
|
|
|
demux_ty_CopyToDemuxPacket
|
|
(
|
|
TY_A,
|
|
tivo,
|
|
demux->audio,
|
|
&( tivo->lastAudio[ esOffset1 + headerSize ] ),
|
|
( packetSize - headerSize ),
|
|
( demux->filepos + offset ),
|
|
tivo->lastAudioPTS
|
|
);
|
|
|
|
}
|
|
|
|
// Collapse the Audio Buffer
|
|
memmove( &(tivo->lastAudio[ 0 ] ),
|
|
&( tivo->lastAudio[ esOffset2 ] ),
|
|
( tivo->lastAudioEnd - esOffset2 ) );
|
|
tivo->lastAudioEnd -= esOffset2;
|
|
}
|
|
}
|
|
}
|
|
|
|
// SA Audio with no PES Header
|
|
// ================================================
|
|
if ( nybbleType == 0x04 )
|
|
{
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3,
|
|
"ty:Adding Audio Packet Size %d\n", size );
|
|
demux_ty_CopyToDemuxPacket( TY_A, tivo, demux->audio,
|
|
&chunk[ offset ], size, ( demux->filepos + offset ),
|
|
tivo->lastAudioPTS );
|
|
}
|
|
|
|
// DTiVo AC3 Audio Data with PES Header
|
|
// ================================================
|
|
if ( nybbleType == 0x09 )
|
|
{
|
|
tivo->tivoType = 2;
|
|
|
|
demux_ty_AddToAudioBuffer( tivo, &chunk[ offset ], size );
|
|
demux_ty_FindESPacket( ty_AC3AudioPacket, 4,
|
|
tivo->lastAudio, tivo->lastAudioEnd, &esOffset1,
|
|
&esOffset2 );
|
|
|
|
if ( ( esOffset1 != -1 ) && ( esOffset2 != -1 ) )
|
|
{
|
|
int packetSize = esOffset2 - esOffset1;
|
|
int headerSize;
|
|
int ptsOffset;
|
|
|
|
if ( IsValidAudioPacket( packetSize, &ptsOffset,
|
|
&headerSize ) )
|
|
{
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3,
|
|
"ty:Adding DTiVo Audio Packet Size %d\n",
|
|
packetSize );
|
|
|
|
tivo->lastAudioPTS = get_ty_pts(
|
|
&tivo->lastAudio[ esOffset1 + ptsOffset ] );
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3,
|
|
"AC3 Audio PTS %7.1f\n", tivo->lastAudioPTS );
|
|
|
|
// AC3 Decoder WANTS the PTS
|
|
demux_ty_CopyToDemuxPacket
|
|
(
|
|
TY_A,
|
|
tivo,
|
|
demux->audio,
|
|
&( tivo->lastAudio[ esOffset1 ] ),
|
|
( packetSize ),
|
|
( demux->filepos + offset ),
|
|
tivo->lastAudioPTS
|
|
);
|
|
|
|
}
|
|
|
|
// Collapse the Audio Buffer
|
|
memmove( &(tivo->lastAudio[ 0 ] ),
|
|
&( tivo->lastAudio[ esOffset2 ] ),
|
|
( tivo->lastAudioEnd - esOffset2 ) );
|
|
tivo->lastAudioEnd -= esOffset2;
|
|
}
|
|
}
|
|
offset += size;
|
|
}
|
|
else
|
|
{
|
|
errorHeader++;
|
|
}
|
|
}
|
|
// ================================================================
|
|
// Closed Caption
|
|
// ================================================================
|
|
else if ( type == 0x01 )
|
|
{
|
|
unsigned char b1;
|
|
unsigned char b2;
|
|
unsigned char buffer[ 16 ];
|
|
|
|
b1 = ( ( ( recPtr[ 0 ] & 0x0f ) << 4 ) |
|
|
( ( recPtr[ 1 ] & 0xf0 ) >> 4 ) );
|
|
b1 &= 0x7f;
|
|
b2 = ( ( ( recPtr[ 1 ] & 0x0f ) << 4 ) |
|
|
( ( recPtr[ 2 ] & 0xf0 ) >> 4 ) );
|
|
b2 &= 0x7f;
|
|
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3, "ty:CC %x %x\n", b1, b2 );
|
|
|
|
buffer[ 0x00 ] = 0x00;
|
|
buffer[ 0x01 ] = 0x00;
|
|
buffer[ 0x02 ] = 0x01;
|
|
buffer[ 0x03 ] = 0xb2;
|
|
buffer[ 0x04 ] = 'T';
|
|
buffer[ 0x05 ] = 'Y';
|
|
buffer[ 0x06 ] = 0x01;
|
|
buffer[ 0x07 ] = b1;
|
|
buffer[ 0x08 ] = b2;
|
|
demux_ty_CopyToDemuxPacket( TY_V, tivo, demux->video, buffer, 0x09,
|
|
( demux->filepos + offset ), tivo->lastVideoPTS );
|
|
}
|
|
// ================================================================
|
|
// Extended Data Services
|
|
// ================================================================
|
|
else if ( type == 0x02 )
|
|
{
|
|
unsigned char b1;
|
|
unsigned char b2;
|
|
unsigned char buffer[ 16 ];
|
|
|
|
b1 = ( ( ( recPtr[ 0 ] & 0x0f ) << 4 ) |
|
|
( ( recPtr[ 1 ] & 0xf0 ) >> 4 ) );
|
|
b1 &= 0x7f;
|
|
b2 = ( ( ( recPtr[ 1 ] & 0x0f ) << 4 ) |
|
|
( ( recPtr[ 2 ] & 0xf0 ) >> 4 ) );
|
|
b2 &= 0x7f;
|
|
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3, "ty:XDS %x %x\n", b1, b2 );
|
|
|
|
buffer[ 0x00 ] = 0x00;
|
|
buffer[ 0x01 ] = 0x00;
|
|
buffer[ 0x02 ] = 0x01;
|
|
buffer[ 0x03 ] = 0xb2;
|
|
buffer[ 0x04 ] = 'T';
|
|
buffer[ 0x05 ] = 'Y';
|
|
buffer[ 0x06 ] = 0x02;
|
|
buffer[ 0x07 ] = b1;
|
|
buffer[ 0x08 ] = b2;
|
|
demux_ty_CopyToDemuxPacket( TY_V, tivo, demux->video, buffer, 0x09,
|
|
( demux->filepos + offset ), tivo->lastVideoPTS );
|
|
}
|
|
// ================================================================
|
|
// Found a 0x03 on Droid's TiVo, I have no idea what it is
|
|
// ================================================================
|
|
else if ( type == 0x03 )
|
|
{
|
|
if ( ( size > 0 ) && ( ( size + offset ) <= CHUNKSIZE ) )
|
|
{
|
|
offset += size;
|
|
}
|
|
}
|
|
// ================================================================
|
|
// Unknown
|
|
// ================================================================
|
|
else if ( type == 0x05 )
|
|
{
|
|
if ( ( size > 0 ) && ( ( size + offset ) <= CHUNKSIZE ) )
|
|
{
|
|
offset += size;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if ( ( size > 0 ) && ( ( size + offset ) <= CHUNKSIZE ) )
|
|
{
|
|
offset += size;
|
|
}
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3, "ty:Invalid Type %x\n", type );
|
|
invalidType++;
|
|
}
|
|
recPtr += 16;
|
|
}
|
|
|
|
if ( errorHeader > 0 )
|
|
{
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3,
|
|
"ty:Error Check - Records %d, Parsed %d, Errors %d\n",
|
|
numberRecs, recordsDecoded, errorHeader );
|
|
|
|
// Invalid MPEG ES Size Check
|
|
if ( errorHeader > ( numberRecs / 2 ) )
|
|
{
|
|
return( 0 );
|
|
}
|
|
|
|
// Invalid MPEG Stream Type Check
|
|
if ( invalidType > ( numberRecs / 2 ) )
|
|
{
|
|
return( 0 );
|
|
}
|
|
}
|
|
|
|
demux->filepos = stream_tell( demux->stream );
|
|
|
|
return( 1 );
|
|
}
|
|
|
|
void demux_seek_ty( demuxer_t *demuxer, float rel_seek_secs, int flags )
|
|
{
|
|
demux_stream_t *d_audio = demuxer->audio;
|
|
demux_stream_t *d_video = demuxer->video;
|
|
sh_audio_t *sh_audio = d_audio->sh;
|
|
sh_video_t *sh_video = d_video->sh;
|
|
off_t newpos;
|
|
off_t res;
|
|
TiVoInfo *tivo = 0;
|
|
|
|
mp_msg( MSGT_DEMUX, MSGL_DBG3, "ty:Seeking to %7.1f\n", rel_seek_secs );
|
|
|
|
if ( ( demuxer->a_streams[ MAX_A_STREAMS - 1 ] ) != 0 )
|
|
{
|
|
tivo = demuxer->a_streams[ MAX_A_STREAMS - 1 ];
|
|
tivo->lastAudioEnd = 0;
|
|
tivo->lastAudioPTS = 0;
|
|
tivo->lastVideoPTS = 0;
|
|
}
|
|
//
|
|
//================= seek in MPEG ==========================
|
|
demuxer->filepos = stream_tell( demuxer->stream );
|
|
|
|
newpos = ( flags & 1 ) ? demuxer->movi_start : demuxer->filepos;
|
|
|
|
if( flags & 2 )
|
|
{
|
|
// float seek 0..1
|
|
newpos += ( demuxer->movi_end - demuxer->movi_start ) * rel_seek_secs;
|
|
}
|
|
else
|
|
{
|
|
// time seek (secs)
|
|
if( ! sh_video->i_bps ) // unspecified or VBR
|
|
{
|
|
newpos += 2324 * 75 * rel_seek_secs; // 174.3 kbyte/sec
|
|
}
|
|
else
|
|
{
|
|
newpos += sh_video->i_bps * rel_seek_secs;
|
|
}
|
|
}
|
|
|
|
if ( newpos < demuxer->movi_start )
|
|
{
|
|
if( demuxer->stream->type != STREAMTYPE_VCD ) demuxer->movi_start = 0;
|
|
if( newpos < demuxer->movi_start ) newpos = demuxer->movi_start;
|
|
}
|
|
|
|
res = newpos / CHUNKSIZE;
|
|
if ( rel_seek_secs >= 0 )
|
|
{
|
|
newpos = ( res + 1 ) * CHUNKSIZE;
|
|
}
|
|
else
|
|
{
|
|
newpos = res * CHUNKSIZE;
|
|
}
|
|
|
|
if ( newpos < 0 )
|
|
{
|
|
newpos = 0;
|
|
}
|
|
stream_seek( demuxer->stream, newpos );
|
|
|
|
// re-sync video:
|
|
videobuf_code_len = 0; // reset ES stream buffer
|
|
|
|
ds_fill_buffer( d_video );
|
|
if( sh_audio )
|
|
{
|
|
ds_fill_buffer( d_audio );
|
|
resync_audio_stream( sh_audio );
|
|
}
|
|
|
|
while( 1 )
|
|
{
|
|
int i;
|
|
if( sh_audio && !d_audio->eof && d_video->pts && d_audio->pts )
|
|
{
|
|
float a_pts = d_audio->pts;
|
|
a_pts += ( ds_tell_pts( d_audio ) - sh_audio->a_in_buffer_len ) /
|
|
(float)sh_audio->i_bps;
|
|
if( d_video->pts > a_pts )
|
|
{
|
|
skip_audio_frame( sh_audio ); // sync audio
|
|
continue;
|
|
}
|
|
}
|
|
i = sync_video_packet( d_video );
|
|
if( i == 0x1B3 || i == 0x1B8 ) break; // found it!
|
|
if( !i || !skip_video_packet( d_video ) ) break; // EOF?
|
|
}
|
|
if ( subcc_enabled )
|
|
{
|
|
ty_ClearOSD( 0 );
|
|
}
|
|
}
|
|
|
|
int demux_ty_control( demuxer_t *demuxer,int cmd, void *arg )
|
|
{
|
|
demux_stream_t *d_video = demuxer->video;
|
|
sh_video_t *sh_video = d_video->sh;
|
|
|
|
switch(cmd)
|
|
{
|
|
case DEMUXER_CTRL_GET_TIME_LENGTH:
|
|
if(!sh_video->i_bps) // unspecified or VBR
|
|
return DEMUXER_CTRL_DONTKNOW;
|
|
*((unsigned long *)arg)=
|
|
(demuxer->movi_end-demuxer->movi_start)/sh_video->i_bps;
|
|
return DEMUXER_CTRL_GUESS;
|
|
|
|
case DEMUXER_CTRL_GET_PERCENT_POS:
|
|
if (demuxer->movi_end==demuxer->movi_start)
|
|
return DEMUXER_CTRL_DONTKNOW;
|
|
*((int *)arg)=
|
|
(int)((demuxer->filepos-demuxer->movi_start)/
|
|
((demuxer->movi_end-demuxer->movi_start)/100));
|
|
return DEMUXER_CTRL_OK;
|
|
default:
|
|
return DEMUXER_CTRL_NOTIMPL;
|
|
}
|
|
}
|
|
|
|
|
|
int demux_close_ty( demuxer_t *demux )
|
|
{
|
|
TiVoInfo *tivo = 0;
|
|
|
|
if ( ( demux->a_streams[ MAX_A_STREAMS - 1 ] ) != 0 )
|
|
{
|
|
tivo = demux->a_streams[ MAX_A_STREAMS - 1 ];
|
|
free( tivo );
|
|
demux->a_streams[ MAX_A_STREAMS - 1 ] = 0;
|
|
sub_justify = 0;
|
|
}
|
|
return( 0 );
|
|
}
|
|
|
|
|