[Ffmpeg-devel] PTS / DTS with XViD

Jani Boutellier bow
Wed Jul 19 08:37:39 CEST 2006

Rich Felker wrote:
> On Tue, Jul 18, 2006 at 10:32:40AM +0100, 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.
> The OGM format is not sanctioned by Xiph and was designed by windows
> kiddies to store "DirectShow content" in OGG. Thus it should probably
> be interpreted just like AVI..
>>> If OGM only has one
>>> timestamp then it almost surely needs to be interpreted as dts, not
>>> pts... :(
>> Yes, probably.
> Yet another broken format... :(

Ok, thanks for the help guys. It looks like I'm going to abandon this 
mess called OGM and start to look for ways to work with the MPEG 

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