[Ffmpeg-devel] trouble with h264.c
Fri May 13 17:04:56 CEST 2005
Guillaume POIRIER <poirierg at gmail.com> writes:
> On 5/13/05, M?ns Rullg?rd <mru at inprovide.com> wrote:
>> Scott Treude <scott at niceshoes.com> writes:
>> > Hello,
>> > I'm trying to convert an h264 quicktime to a series of ppm files and
>> > I'm receiving the following error:
>> > ffmpeg: h264.c:2316: mc_dir_part: Assertion `pic->data' failed.
>> > The command I'm using is:
>> > /usr/local/bin/ffmpeg -ss 100 -t .2 -i myMovie.mov test%d.ppm
>> > It seems to work fine without the -ss; so is seeking a problem with h264?
>> This is a know problem, at least to me. Unfortunately, I'm not sure
>> how to fix it. The problem is that a reference picture used by the
>> picture being decoded is unavailable, since it was before the point
>> you started decoding at.
>> Michael, Loren, what should we do about this? It used to work, a long
>> time ago. IIRC, it broke around the time B-frame support was added.
> Hummm... not so sure. I encoded a movie no more than 2-3 weeks ago
> that played fine, but now it triggers that assertion error.
This movie, does it always trigger that error? If so, we're not
talking about the same bug.
> AFAIR, B-frame support is much older.
I've been seeing that error when seeking for several months. Search
the archives for my report.
mru at inprovide.com
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