Comments (4)
Hi @wilsonlv 👋
Apologies for the late response and thank you for the report!
I've tested it, and yes, I can reproduce the issue.
The reason is that by default, we encode the output with the mp4v
codec, whereas the input file you likely used was coded with h264
. While the latter takes up less space, the former works more reliably with OpenCV.
I'll make a PR shortly, adding codec selection to sv.process_video
. Although my tests show that the setup isn't trivial - OpenCV really doesn't like telling when it doesn't support the codec.
In the meantime, here's a command to convert to h264
.
ffmpeg -i input-any.mp4 -c:v libx264 output-h264.mp4
Hope this helps 😉
from supervision.
Related PR
from supervision.
@LinasKo Appreciate for your response, thank you !
from supervision.
I'm converting this issue into a discussion and moving it to the Q&A section.
from supervision.
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