Carl Eugen Hoyos <[email protected]> added the comment:
I tested the sample again, and afaics the reference decoder and Nvidia's VDPAU implementation show worse artefacts for the same frames as libavcodec, so I don't think there is an issue. To test with the reference decoder, I removed the first 49 frames and could decode the remaining ~778, ffmpeg needed -vsync 0 to decode 776 (strict 1 for 780). Nearly all showed identical crc, two groups of frames after the middle show differences, all decoders show artefacts for these frames. ---------- status: open -> closed substatus: reproduced -> works_for_me ____________________________________________________ FFmpeg issue tracker <[email protected]> <https://roundup.ffmpeg.org/roundup/ffmpeg/issue420> ____________________________________________________
