[FFmpeg-devel] Massive memory leak in 6.1.1 (fixed on master)

Dennis Mungai dmngaie at gmail.com
Wed May 1 22:40:57 EEST 2024


On Wed, 1 May 2024, 21:40 James Almer, <jamrial at gmail.com> wrote:

> On 5/1/2024 1:52 PM, Ville Syrjälä wrote:
> > Hi,
> >
> > I ran into a massive memory leak while transcoding some audio
> > books after upgrading to ffmpeg 6.1.1 from 6.0.1.
> >
> > Instead of the normal ~100 MiB rss it now exceeds 10 GiB in about
> > ten seconds and keeps on going up.
> >
> > Command line used was approximately this:
> > ffmpeg -activation_bytes XXX -i book.aax -map 0:a -map 0:v -c:a mp3 -c:v
> copy \
> > -ss 0.000000 -to 909.038005 -metadata track="1/69" -metadata
> title="Chapter 1" book_01.mp3
> >
> > Bisect points to:
> > commit 90fba2774304 ("avfilter/trim: switch to activate")
> >
> > I then tried master and discovered that the leak is has been
> > fixed by these two commits:
> > commit 84e400ae37b1 ("avfilter/buffersrc: switch to activate")
> > commit d9e41ead8226 ("avfilter/avfilter: fix OOM case for default
> activate")
> >
> > So those should be cherry-picked to the next 6.1 release (assuming
> > there will be one). Both cherry-pick cleanly, and afterwards the
> > leak is gone from the 6.1 branch as well.
>
> Just backported both commits. Thanks.
>

Is this patchset available on FFmpeg 7.x?

>


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