[FFmpeg-devel] Killing AVFrac
Måns Rullgård
mans
Sun Jul 8 22:26:03 CEST 2007
Michael Niedermayer <michaelni at gmx.at> writes:
> Hi
>
> On Sun, Jul 08, 2007 at 04:21:57PM +0100, M?ns Rullg?rd wrote:
>> Attached patch is an attempt to remove use of AVFrac. It works, apart
>> >from audio timestamps occasionally being off by one. Can anyone see
>> what might be causing the difference?
>
> well the code in ffmpeg.c does convert to double before the divide and:
But are the values computed there used for anything other than
comparisons? From a quick glance it didn't seem like they were
assigned as actual timestamps.
>> @@ -2177,7 +2175,7 @@ static int compute_pkt_fields2(AVStream *st, AVPacket *pkt){
>>
>> // av_log(NULL, AV_LOG_DEBUG, "av_write_frame: pts2:%"PRId64" dts2:%"PRId64"\n", pkt->pts, pkt->dts);
>> st->cur_dts= pkt->dts;
>> - st->pts.val= pkt->dts;
>> + st->pts.num= pkt->dts * st->pts.den;
>>
>> /* update pts */
>> switch (st->codec->codec_type) {
>
> is also not what it was, that said iam not saying the code makes sense as it
> is currently
Well, there is the den/2 bias thing... What's the purpose of that
anyway?
--
M?ns Rullg?rd
mans at mansr.com
More information about the ffmpeg-devel
mailing list