I have used ffmpeg to concatenate two MKV containers with both files having AV1 codec like so:

ffmpeg -f concat -i input.txt -c copy "out.mkv"  

Interestingly enough, the first file has 12GiB and the second has 15GiB, but the concatenated result has only 19GiB (70%). Do MKV containers or videos in general have such a high overhead or did something go wrong?


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.