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Added pts for mp3 and wav. And perfect seeking for mp3, unless flags & 2 

wich is % seeking


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@4765 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
albeu 2002-02-20 16:55:11 +00:00
parent 8b88d6cbe1
commit b91a761966
1 changed files with 65 additions and 7 deletions
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72
libmpdemux/demux_audio.c
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@ -22,12 +22,14 @@
typedef struct da_priv {
int frmt;
float last_pts;
} da_priv_t;
extern int mp_decode_mp3_header(unsigned char* hbuf);
extern void free_sh_audio(sh_audio_t* sh);
extern void resync_audio_stream(sh_audio_t *sh_audio);
static int hr_mp3_seek = 0;
int demux_audio_open(demuxer_t* demuxer) {
stream_t *s;
@ -117,7 +119,7 @@ int demux_audio_open(demuxer_t* demuxer) {
buf[30] = '\0';
demux_info_add(demuxer,"Album",buf);
stream_read(s,buf,4);
buf[5] = '\0';
buf[4] = '\0';
demux_info_add(demuxer,"Year",buf);
stream_read(s,buf,30);
buf[30] = '\0';
@ -168,6 +170,7 @@ int demux_audio_open(demuxer_t* demuxer) {
priv = (da_priv_t*)malloc(sizeof(da_priv_t));
priv->frmt = frmt;
priv->last_pts = -1;
demuxer->priv = priv;
demuxer->audio->id = 0;
demuxer->audio->sh = sh_audio;
@ -216,6 +219,8 @@ int demux_audio_fill_buffer(demux_stream_t *ds) {
dp = new_demux_packet(len);
memcpy(dp->buffer,hdr,4);
stream_read(s,dp->buffer + 4,len-4);
priv->last_pts = priv->last_pts < 0 ? 0 : priv->last_pts + 1152/(float)sh_audio->samplerate;
ds->pts = priv->last_pts - (ds_tell_pts(demux->audio)-sh_audio->a_in_buffer_len)/(float)sh_audio->i_bps;
ds_add_packet(ds,dp);
return 1;
}
@ -224,6 +229,8 @@ int demux_audio_fill_buffer(demux_stream_t *ds) {
int l = sh_audio->wf->nAvgBytesPerSec;
demux_packet_t* dp = new_demux_packet(l);
stream_read(s,dp->buffer,l);
priv->last_pts = priv->last_pts < 0 ? 0 : priv->last_pts + l/(float)sh_audio->i_bps;
ds->pts = priv->last_pts - (ds_tell_pts(demux->audio)-sh_audio->a_in_buffer_len)/(float)sh_audio->i_bps;
ds_add_packet(ds,dp);
return 1;
}
@ -235,6 +242,26 @@ int demux_audio_fill_buffer(demux_stream_t *ds) {
return 0;
}
static void high_res_mp3_seek(demuxer_t *demuxer,float time) {
uint8_t hdr[4];
int len,nf;
da_priv_t* priv = demuxer->priv;
sh_audio_t* sh = (sh_audio_t*)demuxer->audio->sh;
nf = time*sh->samplerate/1152;
while(nf > 0) {
stream_read(demuxer->stream,hdr,4);
len = mp_decode_mp3_header(hdr);
if(len < 0) {
stream_skip(demuxer->stream,-3);
continue;
}
stream_skip(demuxer->stream,len-4);
priv->last_pts += 1152/(float)sh->samplerate;
nf--;
}
}
void demux_audio_seek(demuxer_t *demuxer,float rel_seek_secs,int flags){
sh_audio_t* sh_audio;
stream_t* s;
@ -242,27 +269,44 @@ void demux_audio_seek(demuxer_t *demuxer,float rel_seek_secs,int flags){
float len;
da_priv_t* priv;
sh_audio = demuxer->audio->sh;
if(!(sh_audio = demuxer->audio->sh))
return;
s = demuxer->stream;
priv = demuxer->priv;
if(priv->frmt == MP3 && hr_mp3_seek && !(flags & 2)) {
len = (flags & 1) ? rel_seek_secs - priv->last_pts : rel_seek_secs;
if(len < 0) {
stream_seek(s,demuxer->movi_start);
len = priv->last_pts + len;
priv->last_pts = 0;
}
if(len > 0)
high_res_mp3_seek(demuxer,len);
sh_audio->timer = priv->last_pts - (ds_tell_pts(demuxer->audio)-sh_audio->a_in_buffer_len)/(float)sh_audio->i_bps;
resync_audio_stream(sh_audio);
return;
}
base = flags&1 ? demuxer->movi_start : stream_tell(s) ;
len = (demuxer->movi_end && flags&2) ? (demuxer->movi_end - demuxer->movi_start)*rel_seek_secs : rel_seek_secs;
pos = base+(len*sh_audio->i_bps);
if(demuxer->movi_end && pos >= demuxer->movi_end) {
sh_audio->timer = (stream_tell(s) - demuxer->movi_start)/sh_audio->i_bps;
sh_audio->timer = (stream_tell(s) - demuxer->movi_start)/(float)sh_audio->i_bps;
return;
} else if(pos < demuxer->movi_start)
pos = demuxer->movi_start;
priv->last_pts = (pos-demuxer->movi_start)/(float)sh_audio->i_bps;
sh_audio->timer = priv->last_pts - (ds_tell_pts(demuxer->audio)-sh_audio->a_in_buffer_len)/(float)sh_audio->i_bps;
sh_audio->timer = flags&1 ? rel_seek_secs : (pos-demuxer->movi_start)/sh_audio->i_bps;
switch(priv->frmt) {
case WAV:
pos += (pos % (sh_audio->channels * sh_audio->samplesize) );
pos -= (pos % (sh_audio->channels * sh_audio->samplesize) );
// We need to decrease the pts by one step to make it the "last one"
priv->last_pts -= sh_audio->wf->nAvgBytesPerSec/(float)sh_audio->i_bps;
break;
}
@ -271,3 +315,17 @@ void demux_audio_seek(demuxer_t *demuxer,float rel_seek_secs,int flags){
resync_audio_stream(sh_audio);
}
/****************** Options stuff ******************/
#include "../cfgparser.h"
static config_t demux_audio_opts[] = {
{ "hr-mp3-seek", &hr_mp3_seek, CONF_TYPE_FLAG, 0, 0, 1, NULL },
{ "nohr-mp3-seek", &hr_mp3_seek, CONF_TYPE_FLAG, 0, 1, 0, NULL},
{NULL, NULL, 0, 0, 0, 0, NULL}
};
void demux_audio_register_options(m_config_t* cfg) {
m_config_register_options(cfg,demux_audio_opts);
}