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generic cur_dts update 

removing cur_dts update code from dv again, i think its not needed

Originally committed as revision 3588 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2004-10-12 10:28:27 +00:00
parent 4471e59b24
commit 8bcb147f54
2 changed files with 21 additions and 32 deletions
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9
libavformat/dv.c
View File

@ -913,15 +913,6 @@ static int dv_read_seek(AVFormatContext *s, int stream_index,
}
}
for(i = 0; i < s->nb_streams; i++) {
AVStream *st = s->streams[stream_index];
AVStream *st2 = s->streams[i];
st->cur_dts = av_rescale(timestamp,
st2->time_base.den * (int64_t)st ->time_base.num,
st ->time_base.den * (int64_t)st2->time_base.num);
}
return url_fseek(&s->pb, offset, SEEK_SET);
}

44
libavformat/utils.c
View File

@ -891,6 +891,22 @@ static void av_read_frame_flush(AVFormatContext *s)
}
}
/**
* updates the cur_dts field based on the given timestamp and AVStream.
* only needed if (dts are not set and pts!=dts) or for timestamp wrapping
*/
static void av_update_cur_dts(AVFormatContext *s, AVStream *st, int64_t timestamp){
int i;
for(i = 0; i < s->nb_streams; i++) {
AVStream *st2 = s->streams[i];
st->cur_dts = av_rescale(timestamp,
st2->time_base.den * (int64_t)st ->time_base.num,
st ->time_base.den * (int64_t)st2->time_base.num);
}
}
/**
* add a index entry into a sorted list updateing if it is already there.
* @param timestamp timestamp in the timebase of the given stream
@ -1015,7 +1031,7 @@ int av_seek_frame_binary(AVFormatContext *s, int stream_index, int64_t target_ts
int64_t pos_min, pos_max, pos, pos_limit;
int64_t ts_min, ts_max, ts;
int64_t start_pos;
int index, no_change, i;
int index, no_change;
AVStream *st;
if (stream_index < 0)
@ -1150,13 +1166,7 @@ av_log(s, AV_LOG_DEBUG, "%Ld %Ld %Ld / %Ld %Ld %Ld target:%Ld limit:%Ld start:%L
/* do the seek */
url_fseek(&s->pb, pos, SEEK_SET);
for(i = 0; i < s->nb_streams; i++) {
AVStream *st2 = s->streams[i];
st->cur_dts = av_rescale(ts,
st2->time_base.den * (int64_t)st ->time_base.num,
st ->time_base.den * (int64_t)st2->time_base.num);
}
av_update_cur_dts(s, st, ts);
return 0;
}
@ -1182,13 +1192,7 @@ static int av_seek_frame_byte(AVFormatContext *s, int stream_index, int64_t pos,
url_fseek(&s->pb, pos, SEEK_SET);
#if 0
for(i = 0; i < s->nb_streams; i++) {
st2 = s->streams[i];
st->cur_dts = av_rescale(ie->timestamp,
st2->time_base.den * (int64_t)st ->time_base.num,
st ->time_base.den * (int64_t)st2->time_base.num);
}
av_update_cur_dts(s, st, ts);
#endif
return 0;
}
@ -1196,7 +1200,7 @@ static int av_seek_frame_byte(AVFormatContext *s, int stream_index, int64_t pos,
static int av_seek_frame_generic(AVFormatContext *s,
int stream_index, int64_t timestamp, int flags)
{
int index, i;
int index;
AVStream *st;
AVIndexEntry *ie;
@ -1219,13 +1223,7 @@ static int av_seek_frame_generic(AVFormatContext *s,
av_read_frame_flush(s);
url_fseek(&s->pb, ie->pos, SEEK_SET);
for(i = 0; i < s->nb_streams; i++) {
AVStream *st2 = s->streams[i];
st->cur_dts = av_rescale(ie->timestamp,
st2->time_base.den * (int64_t)st ->time_base.num,
st ->time_base.den * (int64_t)st2->time_base.num);
}
av_update_cur_dts(s, st, ie->timestamp);
return 0;
}