[Ffmpeg-devel] VP3 decoding issue
Mike Melanson
mike
Wed Oct 26 00:24:08 CEST 2005
Derk-Jan Hartman wrote:
> On 12-okt-2005, at 21:52, matthieu castet wrote:
>
>> Derk-Jan Hartman wrote:
>>
>>> Apparently a while ago VP3 decoding stopped working in VLC and ffmpeg.
>>> http://sidekick.student.utwente.nl/videolan/VP3-Artifact.mov
>>>
>> Server returned 403: Forbidden ....
>>
>>
>> Does it play fine with vp3 binary decoder.
>> If it works with previous version of ffmpeg, could you find which
>> commit break it ?
>
>
> All my VP3 NSV streams that i tested are broken, and I traced the bug
> to vp3.c 1.51 -> 1.52
>
> revision 1.52
> date: 2005/05/17 23:39:23; author: melanson; state: Exp; lines: +45 -11
> use VLCs for in place of get_fragment_run_length(), get_mode_code(), and
> get_motion_vector_vlc()
>
> Something there broke vp3 on MacOS X PPC.
> Anyone could help me getting any further from this point?
I made those changes (as the CVS notes). I remember validating the
changes extensively. Is it possible that the PPC's VLC readers are
messed up? Some weird optimizations that are not returning the correct
numbers?
--
-Mike Melanson
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