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Code Issues Releases Wiki Activity

Further simplify demux_ty_FindESHeader

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24504 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar 2007-09-14 20:41:32 +00:00
parent 99ef8adf6f
commit 9bb5a91413
1 changed files with 11 additions and 11 deletions
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22
libmpdemux/demux_ty.c
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@ -353,10 +353,10 @@ static void demux_ty_CopyToDemuxPacket( int type, TiVoInfo *tivo, demux_stream_t
tivo->firstAudioPTS = pts; tivo->firstAudioPTS = pts;
} }
static int demux_ty_FindESHeader( unsigned char *header, static int demux_ty_FindESHeader( uint8_t nal,
unsigned char *buffer, int bufferSize ) unsigned char *buffer, int bufferSize )
{ {
uint32_t search = AV_RB32(header); uint32_t search = 0x00000100 | nal;
uint32_t found = -1; uint32_t found = -1;
uint8_t *p = buffer; uint8_t *p = buffer;
uint8_t *end = p + bufferSize; uint8_t *end = p + bufferSize;
@ -369,24 +369,24 @@ static int demux_ty_FindESHeader( unsigned char *header,
return -1; return -1;
} }
static void demux_ty_FindESPacket( unsigned char *header, static void demux_ty_FindESPacket( uint8_t nal,
unsigned char *buffer, int bufferSize, int *esOffset1, int *esOffset2 ) unsigned char *buffer, int bufferSize, int *esOffset1, int *esOffset2 )
{ {
*esOffset1 = demux_ty_FindESHeader(header, buffer, bufferSize); *esOffset1 = demux_ty_FindESHeader(nal, buffer, bufferSize);
if (*esOffset1 == -1) { if (*esOffset1 == -1) {
*esOffset2 = -1; *esOffset2 = -1;
return; return;
} }
buffer += *esOffset1 + 1; buffer += *esOffset1 + 1;
bufferSize -= *esOffset1 + 1; bufferSize -= *esOffset1 + 1;
*esOffset2 = demux_ty_FindESHeader(header, buffer, bufferSize); *esOffset2 = demux_ty_FindESHeader(nal, buffer, bufferSize);
if (*esOffset2 != -1) if (*esOffset2 != -1)
*esOffset2 += *esOffset1 + 1; *esOffset2 += *esOffset1 + 1;
} }
static unsigned char ty_VideoPacket[] = { 0x00, 0x00, 0x01, 0xe0 }; #define VIDEO_NAL 0xe0
static unsigned char ty_MPEGAudioPacket[] = { 0x00, 0x00, 0x01, 0xc0 }; #define AUDIO_NAL 0xc0
static unsigned char ty_AC3AudioPacket[] = { 0x00, 0x00, 0x01, 0xbd }; #define AC3_NAL 0xbd
static int demux_ty_fill_buffer( demuxer_t *demux, demux_stream_t *dsds ) static int demux_ty_fill_buffer( demuxer_t *demux, demux_stream_t *dsds )
{ {
@ -608,7 +608,7 @@ static int demux_ty_fill_buffer( demuxer_t *demux, demux_stream_t *dsds )
{ {
if ( size > 0 && size + offset <= CHUNKSIZE ) if ( size > 0 && size + offset <= CHUNKSIZE )
{ {
int esOffset1 = demux_ty_FindESHeader( ty_VideoPacket, &chunk[ offset ], int esOffset1 = demux_ty_FindESHeader( VIDEO_NAL, &chunk[ offset ],
size); size);
if ( esOffset1 != -1 ) if ( esOffset1 != -1 )
tivo->lastVideoPTS = get_ty_pts( tivo->lastVideoPTS = get_ty_pts(
@ -692,7 +692,7 @@ static int demux_ty_fill_buffer( demuxer_t *demux, demux_stream_t *dsds )
{ {
int esOffset1, esOffset2; int esOffset1, esOffset2;
if ( nybbleType == 0x03 ) if ( nybbleType == 0x03 )
esOffset1 = demux_ty_FindESHeader( ty_MPEGAudioPacket, &chunk[ offset ], esOffset1 = demux_ty_FindESHeader( AUDIO_NAL, &chunk[ offset ],
size); size);
// SA PES Header, No Audio Data // SA PES Header, No Audio Data
@ -710,7 +710,7 @@ static int demux_ty_fill_buffer( demuxer_t *demux, demux_stream_t *dsds )
tivo->tivoType = 2; tivo->tivoType = 2;
demux_ty_AddToAudioBuffer( tivo, &chunk[ offset ], size ); demux_ty_AddToAudioBuffer( tivo, &chunk[ offset ], size );
demux_ty_FindESPacket( nybbleType == 9 ? ty_AC3AudioPacket : ty_MPEGAudioPacket, demux_ty_FindESPacket( nybbleType == 9 ? AC3_NAL : AUDIO_NAL,
tivo->lastAudio, tivo->lastAudioEnd, &esOffset1, tivo->lastAudio, tivo->lastAudioEnd, &esOffset1,
&esOffset2 ); &esOffset2 );