[FFmpeg-user] showvolume filter memory leak

[ramon]

You were right, there is no memory leak in the showvolume. Vagrind does not
detect memory leaks and graphmonitor oscillates in green colour between 1
and 2 in the queue.
The problem I see is in the NUT output format.

I need to generate a vumeter from the input stream and pipe to vlc. So, I
make a vumeter and use a rawvideo  cocdec without encoding and pipe in nut
format to VLC. This works fine with the memory leak problem.
I have tried "-syncpoints none" option for nut but VLC won't play it. Also
I tried rawvideo format output but it doesn't work either.

Is there any other way to send a raw video output to vlc?

Thank you,

On Tue, Apr 19, 2022 at 7:00 PM Paul B Mahol <onemda at gmail.com> wrote:

> On Tue, Apr 19, 2022 at 12:15 PM ramon <calanor at gmail.com> wrote:
>
> > OK I'll check the pts sync as you say.
> >
> > I am simply trying the following command based on
> >
> >
> https://hhsprings.bitbucket.io/docs/programming/examples/ffmpeg/audio_visualization/_showvolume_.html
> > and I get memory leaks.,   I don't know the reason.
> >
> > ffmpeg -re -stream_loop -1 -i test.mp3 -filter_complex
> > "[0:a]showvolume,scale=1920:-1,pad=1920:1080:(ow-iw)/2:(oh-ih)/2[v]" -map
> > [v] -map 0:a -c:a copy -f null -
> >
>
>
> Used valgrind and top with exact that line and spotted nothing out of
> normal.
>
>
> >
> >
> > On Mon, Apr 18, 2022 at 8:27 PM Paul B Mahol <onemda at gmail.com> wrote:
> >
> > > On Mon, Apr 18, 2022 at 8:13 PM Paul B Mahol <onemda at gmail.com> wrote:
> > >
> > > >
> > > >
> > > > On Mon, Apr 18, 2022 at 7:00 PM ramon <calanor at gmail.com> wrote:
> > > >
> > > >> Yes, I used the master versión with your 24144af2 patch.
> > > >> Your patch corectec the leak if  dm (draw_persistent_duration) > 0,
> > and
> > > >> the
> > > >> leak memory occurs also with dm=0.
> > > >>
> > > >
> > > > Does not leak here at all.
> > > >
> > >
> > > Do note that if PTS get out of sync it could start to keep yet not used
> > > frames.
> > >
> > > Could you use graphmonitor filter after showvolume filter? The queue
> > items
> > > displayed in video should not reach red colored numbers.
> > >
> > >
> > > >
> > > >
> > > >>
> > > >>
> > > >>
> > > >> On Mon, Apr 18, 2022 at 5:51 PM Paul B Mahol <onemda at gmail.com>
> > wrote:
> > > >>
> > > >> > On Mon, Apr 18, 2022 at 5:32 PM ramon <calanor at gmail.com> wrote:
> > > >> >
> > > >> > > Thanks,but not work.  The memory leak is the same.
> > > >> > > The init function is called only once.
> > > >> > >
> > > >> > >
> > > >> > Sorry, use master version of ffmpeg.
> > > >> >
> > > >> >
> > > >> > >
> > > >> > >
> > > >> > > On Wed, Apr 13, 2022 at 6:24 PM Paul B Mahol <onemda at gmail.com>
> > > >> wrote:
> > > >> > >
> > > >> > > > On Wed, Apr 13, 2022 at 5:58 PM ramon <calanor at gmail.com>
> > wrote:
> > > >> > > >
> > > >> > > > > I'm testing the showolume filter to generate a single
> vumeter
> > > >> from an
> > > >> > > > input
> > > >> > > > > stream.
> > > >> > > > > The filter works perfectly but eats memory. Approximately
> > > >> 500MBytes
> > > >> > > > every 2
> > > >> > > > > days.
> > > >> > > > >
> > > >> > > > > Using ffmpeg version 5.0-static on GNU/Linux
> 4.15.0-45-generic
> > > >> x86_64
> > > >> > > > >
> > > >> > > > > In normal use I use an output nut format with a pipe to a
> vlc
> > > >> player.
> > > >> > > But
> > > >> > > > > with a simple output to null it also has a memory leak.
> > > >> > > > >
> > > >> > > > > My testing commandline:
> > > >> > > > >
> > > >> > > > > ffmpeg -i udp://@239.1.1.1:1234 -filter_complex
> > > >> > > > >
> > > >> > > >
> > > >> > >
> > > >> >
> > > >>
> > >
> >
> [0:a]showvolume=r=20:ds=log:m=r:v=0:t=0:dm=2:dmc=yellow:o=h:w=320:h=8[out]
> > > >> > > > > -map [out] -map 0:a -an -c:v rawvideo -pix_fmt rgb24 -f null
> > > >> > /dev/null
> > > >> > > > >
> > > >> > > >
> > > >> > > > Small leaks (648 bytes per each init) have been fixed. Thanks
> > for
> > > >> > report.
> > > >> > > >
> > > >> > > >
> > > >> > > > >
> > > >> > > > >
> > > >> > > > > Thanks,
> > > >> > > > > Ramon
> > > >> > > > > _______________________________________________
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> > > >> > > > >
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