I want to create a MKV file with video codec VP8
and audio codec opus
I tried the following command in ffmpeg:
ffmpeg -y -i ./INPUT.flv -threads 8 -aspect 16:9 -vcodec libvpx -vb 2M -acodec libopus -ac 2 OUTPUT.mkv
I have installed libopus0 in my Ubuntu, but I am getting this error:
Duration: 00:07:53.30, start: 0.000000, bitrate: 541 kb/s
Stream #0.0: Video: h264 (Main), yuv420p, 640x360, 410 kb/s, 29.97 tbr, 1k tbn, 59.94 tbc
Stream #0.1: Audio: aac, 44100 Hz, stereo, s16, 131 kb/s
Unknown encoder 'libopus0'
What is the problem, and how can I correct this issue?
ffmpeg
allows VP9/VP8 & Opus in Matroska (MKV/MKA). Example:
ffmpeg -i input -c:v libvpx-vp9 -c:a libopus output.mkv
-strict experimental
for Opus.