[FFmpeg-user] libutvideo causes Segmentation fault

Johann Rekowski johann.rekowski at googlemail.com
Sun Mar 10 20:25:41 CET 2013

On 3/10/2013 7:45 PM, Carl Eugen Hoyos wrote:
> Johann Rekowski <johann.rekowski <at> googlemail.com> writes:
>> On 3/10/2013 7:15 PM, Carl Eugen Hoyos wrote:
>>> Johann Rekowski <johann.rekowski <at> googlemail.com> writes:
>>>> libutvideo:
>>>> # git source: git://github.com/qyot27/libutvideo.git
>>>>     ./configure \
>>>>     --prefix=/usr \
>>>>     --enable-shared \
>>>>     --disable-static \
>>>>     --optlevel=3 \
>>>>     --enable-pic \
>>>>     --enable-asm=x64
>>> I can reproduce the crash you are seeing, removing
>>> "--enable-asm=x64" from the configure line works
>>> here.
> The alternative is to compile for x86 but you have
> to remove all leading underscores from
> utv_core/*.asm
> Giving the overall situation of libutvideo, I think
> it is safe to assume that ffv1 is a magnitude more
> stable / maintained / whatever.
Alright, I'll try FFV1 then.
>> Thanks for the fix, are there any plans on adding
>> support for the asm  optimizations in ffmpeg?
> Are the resulting files not supported?
I don't know, it causes an segmentation fault, maybe they are supported, 
but there is some bug that causes this segmentation fault.
>>>> I thought that FFv1 is deprecated
>>> Could you elaborate? This is the first time I read
>>> this (and I should really know).
>> Wikipedia article "http://en.wikipedia.org/wiki/FFV1" states:
>> Latest release
>> <http://en.wikipedia.org/wiki/Software_release_life_cycle> v1.1 /
>> 16 April 2006; *6 years ago*
> As you can see here, v1.1 was released in January:
> http://ffmpeg.org/download.html
It seems the wiki page is outdated.
>> And here "http://en.wikipedia.org/wiki/Snow_%28codec%29" it says
> The only similarity between Snow and FFV1 is that both
> were developed by the same person, the current FFmpeg
> maintainer Michael Niedermayer.
> If you really want to work on libutvideo, please understand
> that this is definitely the wrong mailing list...
> Carl Eugen
> _______________________________________________
> ffmpeg-user mailing list
> ffmpeg-user at ffmpeg.org
> http://ffmpeg.org/mailman/listinfo/ffmpeg-user
Well I just wanted a good codec that compresses good, multithreaded and 
fast (without overloading my CPU/Graphics Card too much). If FFV1 can do 
that too, then I'll be very much pleased. I will try it soon.

- Johann Rekowski

More information about the ffmpeg-user mailing list