When opening AV1 files, the application shows "Error opening file: Unable to obtain a valid pixel format from file." about yuview HOT 7 OPEN

Hi,

Here are the files as requested:
201411_blender_big_buck_bunny_24fps_1080p_av1.mp4
201411_blender_big_buck_bunny_60fps_2160p_av1.mp4

The MKV versions have been remuxed with ffmpeg (-i filename.mp4 -vcodec copy -acodec copy out.mkv).

Kind regards

from yuview.

Hi! Thx for the report. Could you send me the file? If you can not share it publicly then you can also send it to me vial E-Mail.
Christian

from yuview.

I tried to recreate the issue. I observed 2 things:

• When using the FFmpeg decoder, everything works for me
• When using the dav1d decoder integration, decoding does not work. However, I am getting a different error message:
  

@dscp46 Do you observe this using FFmpeg as a decoder for AV1 or dav1d. If its FFmpeg, which version are you using.

from yuview.

I tried to recreate the issue. I observed 2 things:

* When using the FFmpeg decoder, everything works for me

* When using the dav1d decoder integration, decoding does not work. However, I am getting a different error message:
  ![image](https://private-user-images.githubusercontent.com/11556397/298880188-7c207966-f37f-4793-9383-3f19cd8ec89d.png?jwt=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.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.3URkE_djYs3HDpA3dKTDp68omEo6GGjSJQeXHAj6prw)

@dscp46 Do you observe this using FFmpeg as a decoder for AV1 or dav1d. If its FFmpeg, which version are you using.

I got the same message as you when using dav1d from Windows 10 with the last release.
When using the flatpak file, are all external libs included inside, or do I need to report the versions of the libs installed on my host OS?

from yuview.

The releases that we ship do not contain ffmpeg or libdav1d. So you have to install ffmpeg on your system and somehow make it discoberable to your system. Or you can specify the library paths in the YUView settings. On debian it should be enough to use your package manager to install ffmpeg to make YUView find it.

from yuview.

I've tried to load /usr/lib/x86_64-linux-gnu/libavutil.so.57.28.100, /usr/lib/x86_64-linux-gnu/libavformat.so.59.27.100, /usr/lib/x86_64-linux-gnu/libavcodec.so.59.37.100 and /usr/lib/x86_64-linux-gnu/libswresample.so.4.7.100, which are provided by debian bookworm's repository to no avail: I was told to save the attached file:
fail-ffmpeg.log

When trying to load /usr/lib/x86_64-linux-gnu/libdav1d.so.6.6.0, I've got the following error message, which I don't have when loading /usr/lib/x86_64-linux-gnu/libdav1d.so.4.0.2 (an obsolete version I still have from prior my system upgrade from Debian 11 (bullseye), or the one you've supplied on your download menu, but I've got the behaviour mentionned in the first comment of this ticket with them.

Apparently, the following versions of ffmpeg libs are used when I try to open AV1 files, but I don't understand from where they're pulled, since these versions are not installed on my system:

from yuview.

One thing I've noticed in the info pane is that libdav1d doesn't seem to be selected when valid versions of libdav1d (including the one referenced in the 'Help' menu) is selected and defined as the default AV1 decoder:

from yuview.