Re: [Matplotlib-users] Saving animations

[Ryan M. <rm...@gm...>]

On Thu, Oct 4, 2012 at 12:38 PM, Andreas Mueller
<amu...@ai...> wrote:
> On 10/04/2012 03:51 PM, Benjamin Root wrote:
> On Thu, Oct 4, 2012 at 10:02 AM, Andreas Mueller <amu...@ai...>
> wrote:
>>
>> Hi everybody.
>> I have been trying to save some animations I made and I encountered the
>> problem mentioned here.
>> I am using current master.
>> To be precise, when I use
>> anim.save("file.mp4", fps=10, extra_args=['-vcodec', 'libx264'])
>> I get "RuntimeError: Error writing to file" from the agg backend.
>> If I don't use the extra_args, it works, but I get very, very bad
>> quality that can not be redeemed using bitrate.
>> I have ffmpeg and libx264 installed. I also tried the mencoder by passing
>> MencoderWriter() to save, but that resulted in a video where all frames
>> are identical.
>>
>> Any help on this would be appreciated. Is there an easy way to just dump
>> the frames? I can do the mencoder bit myself.
>>
>> Thanks,
>> Andy
>>
>
> Exactly which version of mpl are you using, and what is your platform?  This
> will help us diagnose what is going on.
>
>
>> Thanks for the quick answer.
>> I am not on the box but I used master from yesterday, so
>> 89482b21c8582d49a2ddc2865e472eb404fd07e2, I guess.
>> The platform is Ubuntu Precise (with loads of random Python packages, but
>> that seems somewhat unrelated).

I'm on Ubuntu Precise (12.04) here as well. No problems with/without,
but I'm noticing the extra_args aren't being used (which I think is a
known bug I need to fix.) Can you run with --verbose-debug and post
the relevant output? (Or just compress and attach.)

Ryan

-- 
Ryan May
Graduate Research Assistant
School of Meteorology
University of Oklahoma