<h5 dir="auto">System information (version)</h5>
<ul dir="auto">
<li>OpenCV =&gt; 4.6.0</li>
<li>Operating System / Platform =&gt; Windows 64 Bit 21H2</li>
<li>Compiler =&gt; Visual Studio Code 1.69.2</li>
<li>opencv_videoio_ffmpeg460_64.dll</li>
<li>Python =&gt; 3.10</li>
<li>opencv-contrib-python 4.6.0.66</li>
<li>opencv-python 4.5.5.64</li>
</ul>
<h5 dir="auto">Detailed description</h5>
<p dir="auto">I download a '.mkv' video from YOUTUBE. When i used <strong>cv2.VideoCapture(path)</strong> with python in VSCode, it throwed a warning as follow and can't decode it. I post it in <a href="https://forum.opencv.org/t/error-your-platform-doesnt-suppport-hardware-accelerated-av1-decoding-when-i-use-cv2-videocapture/9605" rel="nofollow">opencv forum</a> 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.</p>
<h5 dir="auto">Warning message:</h5>
<p dir="auto">[av1 @ 0000028a88053c40] Your platform doesn’t suppport hardware accelerated AV1 decoding.<br>
[av1 @ 0000028a88053c40] Failed to get pixel format.<br>
[av1 @ 0000028a88053c40] Missing Sequence Header.<br>
[av1 @ 0000028a88053c40] video_get_buffer: image parameters invalid<br>
[av1 @ 0000028a88053c40] get_buffer() failed<br>
[av1 @ 0000028a88053c40] thread_get_buffer() failed<br>
[av1 @ 0000028a88053c40] Failed to allocate space for current frame.<br>
[av1 @ 0000028a88053c40] Get current frame error</p>
<p dir="auto"><a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="/users/alalek/hovercard" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/alalek">@alalek</a> FFMPEG 4 now supports libaom enabling encoding of AV1 videos. I'm thinking of adding support for it in opencv_thirdparty. If the final binary <code class="notranslate">opencv_ffmpeg.dll</code> does not increase that much in size would this be something that could considered to be included in the official build?</p>