https://bugs.kde.org/show_bug.cgi?id=382582

--- Comment #31 from jgoer...@complete.org ---
I'm the submitter of #426356, which has been marked as a duplicate of this one.
 There are some differences I wanted to highlight for all of you.

I am running the latest Flatpak digikam, which identifies with version 7.0.0-rc
in Flatpak, and in Help->About as 7.0.0 with a build date of Sept. 7, 2020. 
(Not sure why 7.0.0 release or 7.1.0 isn't in flatpak).

Anyhow, I have a Pixel 2 XL and a Pixel 4a.  Both can capture 4K video with
H.264.  This video plays back fine in my Debian buster system using VLC.  My
video card is an nVidia GTX 1070.  I am using the Nouveau open-source nvidia
drivers.  When playing on the host system with vlc, vlc comments "Trying to
open /usr/lib/x86_64-linux-gnu/dri/nouveau_drv_video.so".    This also worked
fine on the older version of Digikam included in buster.

Since I have upgraded to the digikam flatpak, however, this 4K video cannot
play smoothly.  There is significant skipping and jumping in the video
playback.

The nouveau_drv_video.so file used by vlc is in the Debian package
mesa-va-drivers.

I don't know if a missing nouveau_drv_video.so is the cause of this problem,
but it might be a reasonable place to start.

-----
Addendum:

I switched to an Intel video-based system with HEVC decoding acceleration
(necessary for 4K H.265 playback).  Outside of Digikam, my system is quite
capable of playback of both H.264 and H.265 video at 4K.  Within Digikam,
however, the issue as I described above persists.

One of the videos is reported by mplayer like this:

Selected video codec: [ffhevc] vfm: ffmpeg (FFmpeg HEVC / H.265)
Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio))

So that's not MP3.

This is also a regression from Digikam 5.9.0 in regular Debian.  I don't know
if something in the newer version hurt, or if flatpak does; either way, the
older Digikam was much better about this.

-- 
You are receiving this mail because:
You are watching all bug changes.

Reply via email to