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CBR audio PTS fixes (using stsd v1 header)

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@6613 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
arpi 2002-06-30 00:37:02 +00:00
parent 3b83c27cc3
commit ca393eaecb
1 changed files with 24 additions and 14 deletions
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38
libmpdemux/demux_mov.c
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@ -32,7 +32,7 @@
#include "bswap.h"
#include "qtpalette.h"
#include "parse_mp4.h" // MP3 specific stuff
#include "parse_mp4.h" // .MP4 specific stuff
#ifdef USE_QTX_CODECS
#include "../loader/qtx/qtxsdk/components.h"
@ -667,7 +667,7 @@ static void lschunks(demuxer_t* demuxer,int level,off_t endpos,mov_track_t* trak
// 22 short packet_size (==0)
// 24 intfp sample_rate
// (26 short) unknown (==0)
// ---- qt3.0+
// ---- qt3.0+ (version>=1)
// 28 int samples_per_packet
// 32 int bytes_per_packet
// 36 int bytes_per_frame
@ -706,6 +706,14 @@ static void lschunks(demuxer_t* demuxer,int level,off_t endpos,mov_track_t* trak
mp_msg(MSGT_DEMUX, MSGL_INFO, "Audio bits: %d chans: %d rate: %d\n",
trak->stdata[19],trak->stdata[17],sh->samplerate);
if(trak->stdata_len >= 44 && trak->stdata[9]>=1)
mp_msg(MSGT_DEMUX,MSGL_V,"Audio header: samp/pack=%d bytes/pack=%d bytes/frame=%d bytes/samp=%d \n",
char2int(trak->stdata,28),
char2int(trak->stdata,32),
char2int(trak->stdata,36),
char2int(trak->stdata,40));
if((trak->stdata[9]==0) && trak->stdata_len >= 36) { // version 0 with extra atoms
int atom_len = char2int(trak->stdata,28);
switch(char2int(trak->stdata,32)) { // atom type
@ -1290,22 +1298,24 @@ if(trak->samplesize){
x=trak->chunks[trak->pos].size;
// printf("X = %d\n", x);
/* the following stuff is audio related */
if (trak->type == MOV_TRAK_AUDIO)
{
if(trak->stdata_len>=36 && trak->stdata[30] && trak->stdata[31]){
// extended stsd header - works for CBR MP3:
x/=(trak->stdata[30]<<8)+trak->stdata[31]; // samples/packet
// x*=(trak->stdata[34]<<8)+trak->stdata[35]; // bytes/packet
x*=(trak->stdata[38]<<8)+trak->stdata[39]; // bytes/frame
} else {
// works for ima4: -- we should find this info in mov headers!
if (trak->type == MOV_TRAK_AUDIO){
if(trak->stdata_len>=44 && trak->stdata[9]>=1){
// stsd version 1 - we have audio compression ratio info:
x/=char2int(trak->stdata,28); // samples/packet
x*=char2int(trak->stdata,32); // bytes/packet
// x*=char2int(trak->stdata,36); // bytes/frame
} else {
if(ds->ss_div!=1 || ds->ss_mul!=1){
// workaround for buggy files like 7up-high-traffic-areas.mov,
// with missing stsd v1 header containing compression rate
x/=ds->ss_div; x*=ds->ss_mul; // compression ratio fix ! HACK !
} else {
x*=(trak->stdata[18]<<8)+trak->stdata[19];x/=8; // bits/sample
x*=(trak->stdata[16]<<8)+trak->stdata[17]; //channels
x*=(trak->stdata[18]<<8)+trak->stdata[19]; //bits/sample
x/=8; // bits/sample
}
}
mp_msg(MSGT_DEMUX, MSGL_DBG2, "Audio sample %d bytes pts %5.3f\n",trak->chunks[trak->pos].size*trak->samplesize,pts);
}
mp_msg(MSGT_DEMUX, MSGL_DBG2, "Audio sample %d bytes pts %5.3f\n",trak->chunks[trak->pos].size*trak->samplesize,pts);
} /* MOV_TRAK_AUDIO */
pos=trak->chunks[trak->pos].pos;
} else {