[FFmpeg-devel] [WIP] New Filter (dejudder)

[Michael Niedermayer]

On Fri, Jan 24, 2014 at 10:49:58AM -0800, Nicholas Robbins wrote:
> > On Friday, January 24, 2014 5:02 AM, Paul B Mahol <onemda at gmail.com> wrote:
> 
> >>  detected 2 logical cores
> >>  [AVFilterGraph @ 0x2744dac9f0] Error initializing filter 'dejudder'
> >>  Error opening filters!
> >>  [AVIOContext @ 0x2744db0be0] Statistics: 0 seeks, 0 writeouts
> >>  [AVIOContext @ 0x2744db0cc0] Statistics: 32768 bytes read, 0 seeks
> >> 
> >>  I'm not sure how to debug this.
> > 
> > Wrong check for malloc failure in init function.
> 
> 
> Thanks! That did it. I think I have it working now. However, I get this sometimes at the end of an otherwise fine encode like 
> 
> $ ffmpeg  -i IN.mkv  -map 0 -c copy -c:v libx264 -preset veryfast -crf 17 -vf pullup,dejudder,fps=120000/1001 OUT.mkv
> ......
> [libx264 @ 0x51ed84a8e0] Weighted P-Frames: Y:2.5% UV:1.8%
> [libx264 @ 0x51ed84a8e0] kb/s:2383.61

> *** glibc detected *** ffmpeg: double free or corruption (!prev): 0x00000051ed847d80 ***

try valgrind or address sanitizer

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

If a bugfix only changes things apparently unrelated to the bug with no
further explanation, that is a good sign that the bugfix is wrong.
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