[Ffmpeg-devel] PTS / DTS with XViD

Jani Boutellier bow
Tue Jul 18 12:10:02 CEST 2006

Ok, I attached a video clip that is in the OGM format and contains XViD 

Well, if it is not "officially" possible to use ogm files, which 
container format would truly support B-Frames with FFMPEG?

Matroska is out of the question since I tried to use it with FFMPEG but 
it resulted only in errors (I sent a post a week ago to the ffmpeg-user 
-list about this issue).

M?ns Rullg?rd wrote:
> 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.
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