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author | reimar <reimar@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2007-09-14 17:39:48 +0000 |
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committer | reimar <reimar@b3059339-0415-0410-9bf9-f77b7e298cf2> | 2007-09-14 17:39:48 +0000 |
commit | 29e529c8738002ea6ac819cd5744f9e4aa2db9e4 (patch) | |
tree | 70a7eb4496c3fcdbe1d6d2292b5a1807a497aab6 /libmpdemux/demux_ty.c | |
parent | d967a56ee6fb1525a4366392393dd9c9723a518d (diff) | |
download | mpv-29e529c8738002ea6ac819cd5744f9e4aa2db9e4.tar.bz2 mpv-29e529c8738002ea6ac819cd5744f9e4aa2db9e4.tar.xz |
Fix completely broken get_ty_pts (it's an ordinary MPEG timestamp)
git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@24481 b3059339-0415-0410-9bf9-f77b7e298cf2
Diffstat (limited to 'libmpdemux/demux_ty.c')
-rw-r--r-- | libmpdemux/demux_ty.c | 26 |
1 files changed, 11 insertions, 15 deletions
diff --git a/libmpdemux/demux_ty.c b/libmpdemux/demux_ty.c index 547dcd9d5a..4d8084cd9f 100644 --- a/libmpdemux/demux_ty.c +++ b/libmpdemux/demux_ty.c @@ -45,6 +45,7 @@ #include "stheader.h" #include "sub_cc.h" #include "libavutil/avstring.h" +#include "libavutil/intreadwrite.h" extern void skip_audio_frame( sh_audio_t *sh_audio ); extern int sub_justify; @@ -354,21 +355,16 @@ static int IsValidAudioPacket( int size, int *ptsOffset, int *ptsLen ) static float get_ty_pts( unsigned char *buf ) { - float result = 0; - unsigned char temp; - - temp = ( buf[ 0 ] & 0xE ) >> 1; - result = ( (float) temp ) * ( (float) ( 1L << 30 ) ) / ( (float)PTS_KHZ ); - temp = buf[ 1 ]; - result += ( (float) temp ) * ( (float) ( 1L << 22 ) ) / ( (float)PTS_KHZ ); - temp = ( buf[ 2 ] & 0xFE ) >> 1; - result += ( (float) temp ) * ( (float) ( 1L << 15 ) ) / ( (float)PTS_KHZ ); - temp = buf[ 3 ]; - result += ( (float) temp ) * ( (float) ( 1L << 7 ) ) / ( (float)PTS_KHZ ); - temp = ( buf[ 4 ] & 0xFE ) >> 1; - result += ( (float) temp ) / ( (float)PTS_MHZ ); - - return result; + int a = buf[0] & 0xe; + int b = AV_RB16(buf + 1); + int c = AV_RB16(buf + 3); + uint64_t pts; + + if (!(1 & a & b & c)) // invalid MPEG timestamp + return 0; + a >>= 1; b >>= 1; c >>= 1; + pts = (((uint64_t)a) << 30) | (b << 15) | c; + return (float)pts / PTS_KHZ; } static void demux_ty_AddToAudioBuffer( TiVoInfo *tivo, unsigned char *buffer, |