Actually mp3 sound files don't even play (progress bar stays still). Video mp4 shows normally without sound.

We always closed the audio device in digiKam-7.7.0 when no video is playing. This change is already removed in the digiKam-7.8.0 trial version. But the problem is still there, so it wasn't the problem. There must have been another change to QtAV.

Maik

MP3-file preview frame also shows incorrect length (correct information at properties sidebar), if it helps.

Same problem with appimage 7.7 and 7.8 on Fedora: video plays well, but no sound.

This is not an internal digiKam problem, as the native digiKam version plays sound without any problems. Something must be missing in the VM when compiling / creating the AppImage.

The only difference to an older AppImage is that it still has sound and that Pulse is also available. In current AppImages, only OpenAL.
Gilles, I think there is something missing to compile QtAV with Pulse.

Maik

hi Maik,

Yes probably. I will take a look.

Gilles

Git commit bd48db4af207073d4865562488ea6cc847ac53af by Gilles Caulier.
Committed on 12/10/2022 at 14:47.
Pushed by cgilles into branch 'qt5-maintenance'.

Add pulse audio support in AppImage

M  +1    -0    project/bundles/appimage/01-build-host.sh

https://invent.kde.org/graphics/digikam/commit/bd48db4af207073d4865562488ea6cc847ac53af

The current AppImage now plays sound here again.

Maik

(In reply to Maik Qualmann from comment #8)
> The current AppImage now plays sound here again.
> 
> Maik

There is indeed a change in the last AppImage:
 - there is some sound, but with a lot of noise
 - and the video lags a lot (video is jerky).
In the previous AppImage: no sound at all, but the video was ok (not jerky).

Of course the video plays nice (with sound) outside Digikam (VLC, ...).

You're using Fedora with Gnome I assume? QtAV is now part of digiKam, the debug messages are now in the digiKam namespace. There are a lot of debugging messages during playback. If you have enabled internet debugging under digiKam Setup-> Miscellaneous-> System, please disable it and restart digiKam. The debug environment variable should also not be set.

Maik

not internet debugging -> internal debugging...

Maik

Indeed Maik, I'm using Fedora with Gnome.
"Enable internal debug logging" was already deactivated. And I don't use debug environment variable (AFAIK, unless they are used by default?). 
Note that I have tested deactivating the option "Disable HW acceleration OpenCL": no effect.

Note that as you asked, I have tested with KDE Plasma -> same result.
And also Gnome X11 or Wayland does not change anything.

(In reply to Maik Qualmann from comment #8)
> The current AppImage now plays sound here again.

I have 7.8.0 from Oct 14 but fix is not there.

(In reply to myaccount132 from comment #14)
> I have 7.8.0 from Oct 14 but fix is not there.

My comment was related to the upcoming digiKam -7.9.0 AppImage from here:

https://files.kde.org/digikam/

Please test it.

Maik

And i will rebuild all 7.9.0 bundles this evening

Gilles

By quick testing mp4 video sound is ok, but all mp3 files have silent gaps.

(In reply to myaccount132 from comment #17)
> By quick testing mp4 video sound is ok, but all mp3 files have silent gaps.

... they're not actually gaps, but playing stops abruptly and constantly for short times.

Tested newer 7.9.0 build from today. Now both mp3 audio and mp4 video audio play at equally correct speed but also have equally corrupt output (distortion, analogue synth type sounds).

(In reply to myaccount132 from comment #19)
> Tested newer 7.9.0 build from today. Now both mp3 audio and mp4 video audio
> play at equally correct speed but also have equally corrupt output
> (distortion, analogue synth type sounds).

Retested 20221022 build and behavior change actually seems to be from upgrading Ubuntu 22.04 -> 22.10 as this previous version now behaves similarly. Anyway, there still seems to be something wrong with the audio.

Maik,

Problem is also reproducible on my computer with 8.0.0 and a native compilation using libportaudio under Kubuntu 22.04.

In fact the first video is ok, but when i switch to another one, no sound. I need to restart digiKam

Gilles

I have tested with 8.0.0 version (still Appimage on Fedora 37):
- now the video and sound are working well
- EXCEPTED during the first 2-3 seconds of the video which are laggy (and no sound)
Strange ...

I have exactly the same problem here under Kubuntu 22.04 (Plasma desktop).

Disabling the desktop OpenGL effects fix the problem. Do ask me why...

Gilles Caulier

(In reply to caulier.gilles from comment #23)
> I have exactly the same problem here under Kubuntu 22.04 (Plasma desktop).
> 
> Disabling the desktop OpenGL effects fix the problem. Do ask me why...
> 
> Gilles Caulier
I tested that as well (I suppose you mean disabling compositing : Alt+Shift+F12 on KDE xorg ?). No effect, same problem under Fedora.

Same issue in openSUSE 15.4 and openSUSE Tumbleweed using KDE Plasma - no sound available, disabling compositing has no effect.
Application digikam is not shown in the audio section of the plasma control panel during video playback.
No sound problems in earlier releases including 7.10.0.

video playback with mp3 audio

console output during video playback:
digikam.qtav.warn: invalid index 0 ( valid is 0 ~ 0 ) for stream type 2
digikam.qtav.warn: invalid video frame from decoder. undecoded data size: 0

Roland, under openSUSE Tumbleweed have you tested the AppImage or the already available native digiKam version from the repository?
Here with my developer version under openSUSE Tumbleweed no sound problems, either with FFmpeg4 or FFmpeg5.
Have you installed the required Packman FFmpeg packages?

Maik

Hi Maik,

I have installed digiKam from the repo KDE:Extra.
PackMan ffmpeg 4.4.4-1599.1.pm.5 is available.

I have just tested the AppImage version, it is working 👍

Perhaps, it's now a task for the package maintainer of the repo.

Appears to be fixed in 8.0.0

It's a great news.