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

[bugfood-ml at fatooh.org]

> On Thu, 2007-05-03 at 21:15 -0700, Corey Hickey wrote:
> What you said is interesting: as Ffmpeg (using the same lavf) does
> encode to DV rather well, maybe there are some subtle differences in how
> this lavf is used or the switches passed to it. In contrast to MEncoder
> where you have to provide these switches yourself, Ffmpeg does it quite
> transparently: by setting -target dv a bunch of optimal parameters are
> automagically set. BTW how could one dump the lavc/lavf parameters
> either Ffmpeg or MEncoder use while perfoming a given action?

Within mencoder, the interface to lavc and the interface to lavf are
separated, and the connection between them is not perfect (hence the
reason for the_longest_mencoder_option_in_existence, and other bugs like
this one). I'm not entirely sure what you mean by "dump[ing] the lavc/lavf
parameters", but if you mean what I think you mean, then the only way I
know of would be to use a debugger to examine the relevant information
stored in the structures lavc and lavf use. ...which is more or less what
I've been doing.

> I will try your patch with different files/streams/switches during the
> weekend, maybe something will be of help.

Ok. Let me know if you find anything interesting; as I mentioned, however,
I won't be able to work on anything for several days.

-Corey