[packman] HandBrake on Leap 15.3 does not produce hearable audio tracks

Carl Fletcher caf4926 at gmail.com
Sat May 29 22:34:32 CEST 2021


I switched to the flatpack version in Tumbleweed because of issues with PM
version

On Sat, 29 May 2021 at 20:17, Manfred Hollstein <manfred.h at gmx.net> wrote:

> On Sat, 29 May 2021, 20:55:29 +0200, Luigi Baldoni wrote:
> > Sent: Saturday, May 29, 2021 at 8:05 PM
> > From: "Manfred Hollstein" <manfred.h at gmx.net>
> > >
> > > I normally use HandBrake to convert AV recordings from my Dreambox into
> > > a format to keep on my local server. Doing this on Leap 15.3 produces a
> > > video which can be seen, and it also produces audio channels which are
> > > shown normally using e.g. "mpv" - however, the audio is not hearable,
> > > it's just silent.
> > >
> > > Trying to playback that file using "vlc" then shows:
> > >
> > > $ vlc S01E05.D\303nnes\ Eis.mkv
> > > VLC media player 3.0.13 Vetinari (revision 3.0.12.1-158-g6977abc430)
> > > [0000555864925f90] main libvlc: Running vlc with the default
> interface. Use 'cvlc' to use vlc without interface.
> > > [0000555864a09f30] main audio output error: too low audio sample
> frequency (0)
> > > [00007fc0ccd0de10] main decoder error: failed to create audio output
> > > [00007fc0b4007020] gl gl: Initialized libplacebo v2.43.1
> > > libva info: VA-API version 1.10.0
> > > libva info: User environment variable requested driver 'iHD'
> > > libva info: Trying to open /usr/lib64/dri/iHD_drv_video.so
> > > libva info: Found init function __vaDriverInit_1_10
> > > libva info: va_openDriver() returns 0
> > > [00007fc0ccc35ee0] avcodec decoder: Using Intel iHD driver for
> Intel(R) Gen Graphics - 20.3.0 () for hardware decoding
> > >
> > > Note the "main audio output error: too low audio sample frequency"! I
> > > guess this is the reason why there is no audio. Trying to play back the
> > > same file on Leap 15.2 does not change anything, so the issue is caused
> > > on the conversion side, i.e. on Leap 15.3. Using the same preset on
> Leap
> > > 15.2 I get a fully functional video with hearable sound! AFAICS, the
> > > main difference between Leap 15.2 and 15.3 is ffmpeg-4.2 vs.
> ffmpeg-4.4.
> >
> > What does mediainfo have to say about it?
>
> Did not know about that program yet, will install it next.
>
> As an FYI, I rebooted into Leap 15.2 in the meantime and converted the
> file successfully.  Interestingly, "vlc" still complains about the low
> audio sample frequency and happily plays back video and audio. Will
> check again tomorrow on 15.3.
>
> > Regards
>
> Cheers.
>
> l8er
> manfred
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