[FFmpeg-user] ffmpeg stalls/freezes

[Jim Worrall]

On Dec 4, 2011, at 11:25 AM, Jim Worrall wrote:

> 
> On Dec 4, 2011, at 10:53 AM, Carl Eugen Hoyos wrote:
>> 
>> Jim Worrall <coniophora <at> gmail.com> writes:
>> 
>>> Update:  When I set the audio bitrate at 64k or lower, I don't get the error
>>> AND it doesn't freeze; the transcode succeeds.
>> 
>> Could you provide a sample?
>> (Perhaps it also freezes / succeeds with a heavily cut version of your file.)
>> 
>> Carl Eugen
>> 
> You're right, the cut version behaves the same way.  It is about 2 seconds,
> 4 MB: http://dl.dropbox.com/u/18324334/baby1.avi
> 
> Behavior vs. audio bitrate:
> 96k --> error (also error if bitrate is not set)
> 72k --> freeze
> 64k --> success
> 
> Command line:
> ffmpeg -i baby1.avi -c:v libx264 -vprofile main -preset veryslow -x264opts level=3.1:ref=8 -c:a aac -strict experimental -b:a 72k -y output.m4v
> 
> Jim
Using libvo_aacenc instead of aac, there is no error or freeze
Jim