[BUG] Gstreamer warnings, errors on attempted video playback

[vilmibm]

Describe the bug

When trying to open videos on Fedora 39 (.mkv, .mp4, and youtube) I get warnings and errors.

To Reproduce Steps to reproduce the behavior:

1. Install library dependencies
2. Install tplay via cargo
3. Try to play any video

Expected behavior

A video plays or an error tells me what action I might take to fix the problem.

Screenshots

$ tplay 'https://www.youtube.com/watch?v=dQw4w9WgXcQ'
[youtube] Extracting URL: https://www.youtube.com/watch?v=dQw4w9WgXcQ
[youtube] dQw4w9WgXcQ: Downloading webpage
[youtube] dQw4w9WgXcQ: Downloading ios player API JSON
[youtube] dQw4w9WgXcQ: Downloading web creator player API JSON
[youtube] dQw4w9WgXcQ: Downloading player b0557ce3
[youtube] dQw4w9WgXcQ: Downloading m3u8 information
[info] dQw4w9WgXcQ: Downloading 1 format(s): 18
[download] Destination: -
[download] 100% of    8.68MiB in 00:00:05 at 1.54MiB/s
[ WARN:[email protected]] global cap_gstreamer.cpp:2769 handleMessage OpenCV | GStreamer warning: your GStreamer installation is missing a required plugin
[ WARN:[email protected]] global cap_gstreamer.cpp:2784 handleMessage OpenCV | GStreamer warning: Embedded video playback halted; module qtdemux0 reported: Internal data stream error.
[ WARN:[email protected]] global cap_gstreamer.cpp:1679 open OpenCV | GStreamer warning: unable to start pipeline
[ WARN:[email protected]] global cap_gstreamer.cpp:1164 isPipelinePlaying OpenCV | GStreamer warning: GStreamer: pipeline have not been created
MFX: Can't initialize session
[ERROR:[email protected]] global cap.cpp:164 open VIDEOIO(CV_IMAGES): raised OpenCV exception:

OpenCV(4.8.1) /builddir/build/BUILD/opencv-4.8.1/modules/videoio/src/cap_images.cpp:253: error: (-5:Bad argument) CAP_IMAGES: can't find starting number (in the name of file): /tmp/my_temp_file_ZLfDuQ.webm in function 'icvExtractPattern'


Error: Application("Error opening video")

Desktop (please complete the following information):

• OS: Fedora 39
• tplay --version: tplay 0.5.0
• yt-dlp --version: 2024.08.06
• mpv --version: mpv 0.36.0
• rustc --version: rustc 1.75.0 (82e1608df 2023-12-21)
• pkg-config --modversion opencv4: 4.8.1
• ffmpeg -version: ffmpeg version 6.1.2

Additional context

It's entirely possible/probable that this isn't a bug at all and I just need to do some more work to get this working on Fedora; I don't mind doing that work but am stuck and could use a pointer towards what I might be missing on my system. I installed equivalent packages as those listed for Ubuntu and successfully compiled and ran tplay via cargo.

I can open image files fine.