[MEncoder-users] Bug: floating point exception when converting to DV

Levente Novák lnovak at dragon.unideb.hu
Tue May 1 18:26:27 CEST 2007


On Wed, 2007-04-25 at 22:28 +0200, Levente Novák wrote:
> I would like to transcode a mpeg2 material to DV (raw DV, not DV Avi),
> but mencoder gets a floating point exception before writing any frame.
> This happens with all types of input files when output is set to DV;
> however, DV Avi works OK (at least it gives playable files).
> 
> Here is my command line:
> 
> mencoder birthday.mpg -of lavf -lavfopts \
> i_certify_that_my_video_stream_does_not_use_b_frames:format=dv \
> -oac pcm -ovc lavc -lavcopts vcodec=dvvideo -o birthday.dv
> 
Snip...

Still nobody knows why I get a floating point error? Ffmpeg uses
libavformat also and it does not SIGFPE. What are the differences in
their lavf use? (Unfortunately Ffmpeg does use vhook and not yet the
same filter architecture than MEncoder. As bttv's interlaced YV12 is
broken, I really must use MEncoder.)

Levente





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