[Ffmpeg-devel] libtheora brokenness in lavc

matthieu castet castet.matthieu
Sun Jul 16 22:47:20 CEST 2006


matthieu castet wrote:
> matthieu castet wrote:
> 
>> matthieu castet wrote:
>>
>>> M?ns Rullg?rd wrote:
>>>
>>>> matthieu castet <castet.matthieu at free.fr> writes:
>>>>
>>>> Looks like a placeholder or something.  I wrote oggtheora.c, and I
>>>> didn't include an encoder.
>>>>
>>>>
>>> See 
>>> http://article.gmane.org/gmane.comp.video.ffmpeg.devel/19311/match=nilesh 
>>> for more details.
>>>
>>>>> IIRC it supports only stream produced by current stable encoder but
>>>>> can't decode avanced theora stream that are produced by an
>>>>> experimental encoder ( http://svn.xiph.org/trunk/theora-exp/). But the
>>>>> official decoder can't decode them either ...
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> IIRC there was also an issue with bitstreams produced by some really
>>>> old libtheora.  Is this still the case?
>>>>
>>> For this one, Alex fixes some issues about these old streams (IIRC 
>>> there are not supported by the official decoder...).
>>>
>>> But playing an old version 
>>> (http://samples.mplayerhq.hu/ogg/Theora/theora.ogg) seems still broken.
>>
>>
>> Here a patch for playing old theora file.
>>
Update the patch to latest svn (after michael change) + a fix in 
theora_decode_header parsing
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