seems like the codecs=‘something’ is REALLY nitpicky. managed to get a test video to play with:
<video>
<source src="test.mp4" type='video/mp4; codecs="avc1.4d401f"'>
</video>
I made the video by encoding some random clip with ffmpeg -i random_video.mp4 -c:v libaom-av1 -crf 30 test.mp4
(seems to work just as well with libsvtav1
)
As for how are you supposed to know the “4d401f”? beats me, found it here: https://caraya.github.io/av1-video-demo/
edit: https://developer.mozilla.org/en-US/docs/Web/Media/Formats/codecs_parameter#av1 does say that the codec string should look a bit different, but… I dunno, not a video-understanding-webmonke.
edit2: and now I realize that since it works with the codecs=avc1 - it’s the older av1 variant? Not really what you were asking. Whoopsiedaisy.
and you’re absolutely sure the files are av1? if you try to open the video files with ffmpeg, eg:
ffmpeg -i videofile.mkv
, what does it say the codec is?at least my av1 videos say:
Stream #0:0[0x1](und): Video: av1 (libdav1d) (Main) (av01 / 0x31307661), yuv420p(tv, progressive), 854x854, 464 kb/s, SAR 1:1 DAR 1:1, 30 fps, 30 tbr, 16k tbn (default)