Bug#1021032: vlc: playing mp4 videos results in a black screen
On Sun, 2022-10-02 at 18:44 +0200, Sebastian Ramacher wrote:
> On 2022-10-02 08:55:34 -0700, eeickmeyer@ubuntu.com wrote:
> > Hi Sebastian,
> >
> > On Sun, 2022-10-02 at 17:35 +0200, Sebastian Ramacher wrote:
> > > Control: tags -1 upstream fixed-upstream
> > >
> > > On 2022-10-02 17:12:57 +0200, Sebastian Ramacher wrote:
> > > > Control: tags -1 confirmed
> > > >
> > > > On 2022-09-30 13:23:02 -0500, Aaron Rainbolt wrote:
> > > > > Package: vlc
> > > > > Version: 3.0.17.4-4+b2
> > > > > Severity: important
> > > > > X-Debbugs-Cc: arraybolt3@gmail.com
> > > > >
> > > > > Dear Maintainer,
> > > > >
> > > > > When attempting to play back MP4 videos using VLC, only a
> > > > > black
> > > > > screen is
> > > > > displayed, sometimes with the VLC logo still slightly visible
> > > > > in
> > > > > the
> > > > > background. This problem appears to have been caused by the
> > > > > introduction of
> > > > > ffmpeg5 into Debian.
> > > >
> > > > No, I don't think so. This issue is more recent.
> > > >
> > > > >
> > > > > Steps to reproduce:
> > > > >
> > > > > 1. Download a .mp4 video. Any video should work, I
> > > > > personally
> > > > > use drone
> > > > > footage from Pexels.
> > > > > 2. Open the video using VLC. Using Media -> Open File...
> > > > > from
> > > > > within the
> > > > > GUI works, as well as using the command line (vlc
> > > > > ./video.mp4).
> > > > >
> > > > > Expected result:
> > > > >
> > > > > The video should play back properly, allowing audio to be
> > > > > heard
> > > > > and video to
> > > > > be seen.
> > > > >
> > > > > Actual result:
> > > > >
> > > > > The screen remains black (or, if you open the video from the
> > > > > command line, the
> > > > > VLC logo can be seen dimly in the area where the video should
> > > > > be). The
> > > > > playback slider moves normally, as if the video was playing
> > > > > back
> > > > > properly.
> > > >
> > > > Indeed, I have no idea why though.
> > >
> > > The issue seems to be fixed in 3.0.18-rc2.
> > >
> > > Cheers
> >
> > This is excellent news. FYI, we're tracking this bug in Launchpad
> > as
> > well at https://launchpad.net/bugs/1991457 ;. Not sure if you feel
> > like
> > packaging an rc soon for this (even in experimental), but it would
> > definitely help us as we have multiple flavors with this seeded
> > (Ubuntu
> > Studio, Kubuntu, Lubuntu, and Ubuntu Unity have chimed-in so far).
>
> There are no tarballs yet. Whenever they (or the 3.0.18 release)
> becomes
> available, I'll upload new version.
>
> Cheers
Thanks. We're about 1.5 weeks away from Final Freeze, so we don't have
time to wait for a 3.0.18 release. Is there a link to the upstream
commit so that we can patch what we have to fix this bug downstream?
Thanks in advance,
Erich
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