[Ffmpeg-devel] PTS / DTS with XViD

Måns Rullgård mru
Tue Jul 18 11:32:40 CEST 2006


Rich Felker said:
> On Tue, Jul 18, 2006 at 08:39:04AM +0100, M?ns Rullg?rd wrote:
>> >> OGM doesn't know anything about B-frames (it has all the same
>> >> limitations as AVI in that regard). And all containers I've ever
>> >> heard of store frames in decoding order.
>> >> --Loren Merritt
>> >>
>> > Are you sure?
>> >
>> > Both of these sites indicate that there should be B-frame support:
>> > http://www.divxland.org/container_formats.php
>> > http://en.wikipedia.org/wiki/Comparison_of_container_formats
>>
>> Both are wrong, as is to be expected of sites like those.  Which do
>> you trust, random websites or people who actually read specs and write
>> code?
>
> I have plenty of OGM files with B frames.

Perhaps, but that doesn't mean the format supports it.

> If OGM only has one
> timestamp then it almost surely needs to be interpreted as dts, not
> pts... :(

Yes, probably.

-- 
M?ns Rullg?rd
mru at inprovide.com




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