[theora] ffmpeg2theora 0.25 synchronization issues when converting from .mov

Andrew Chew andrew at okashistudios.com
Sun Oct 4 18:45:35 PDT 2009

On Oct 4, 2009, at 5:36 PM, Andrew Chew wrote:

> On Oct 3, 2009, at 12:51 PM, Jason Self wrote:
>> On Oct 2, 2009, at 4:14 AM, Gregory Maxwell wrote:
>>> 2009/10/2 Ivo Emanuel Gonçalves <justivo at gmail.com>:
>>>> Someone (forgot who) reported in this thread that they believe
>>>> libtheora 1.0 didn't have this problem.  Is it possible to grab an
>>>> old
>>>> binary of ffmpeg2theora and test one/some of the problematic files?
>>> FWIW— what is being described here can't be a libtheora problem.  It
>>> could be a ffmpeg2theora problem, or a ffmpeg problem.
>>> (Ivo's suggestion to try an older ffmpeg2theora is still, however,
>>> perfectly valid)
>> I have completed my regression testing: ffmpeg2theora version 0.15
>> does not appear to exhibit this problem, although version 0.17  
>> does. I
>> could not test version 0.16 because it would report "illegal
>> instruction" and die.
> I grabbed ffmpeg2theora-0.15 through 0.25 in preparation for my  
> regression testing.  I started with 0.15...and I still see this  
> problem.  Does anyone know where to get versions earlier than 0.15?
> I just realized that I normally convert my videos using the Xiph  
> Quicktime components.  I stopped using that when I upgraded to Snow  
> Leopard and realized that the Xiph Quicktime components don't work  
> with the latest Quicktime that ships with Snow Leopard.  In any  
> case, I've never had problems converting using that.  It's only when  
> I went to using ffmpeg2theora that I started having these problems.
> So it would appear that there's more evidence that this is an ffmpeg  
> problem, not a theora problem.

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