BUG: ‘Your platform doesn’t suppport hardware accelerated AV1 decoding.’ when i use ‘cv2.VideoCapture’

[piwawa]

System information (version)

• OpenCV => 4.6.0
• Operating System / Platform => Windows 64 Bit 21H2
• Compiler => Visual Studio Code 1.69.2
• opencv_videoio_ffmpeg460_64.dll
• Python => 3.10
• opencv-contrib-python 4.6.0.66
• opencv-python 4.5.5.64

Detailed description

I download a '.mkv' video from YOUTUBE. When i used cv2.VideoCapture(path) with python in VSCode, it throwed a warning as follow and can't decode it. I post it in opencv forum and figure out that maybe an issue with 'opencv_videoio_ffmpegxxx_64.dll' which does not include AV1 support. Maybe update opencv_videoio_ffmpegxxx_64.dll will work.

Warning message:

[av1 @ 0000028a88053c40] Your platform doesn’t suppport hardware accelerated AV1 decoding.
[av1 @ 0000028a88053c40] Failed to get pixel format.
[av1 @ 0000028a88053c40] Missing Sequence Header.
[av1 @ 0000028a88053c40] video_get_buffer: image parameters invalid
[av1 @ 0000028a88053c40] get_buffer() failed
[av1 @ 0000028a88053c40] thread_get_buffer() failed
[av1 @ 0000028a88053c40] Failed to allocate space for current frame.
[av1 @ 0000028a88053c40] Get current frame error

[alalek]

duplicate of #11389

[piwawa]

duplicate of #11389

Any solution?

[canghaiyunfan]

How to solve this issue?