MKV will likely support these too, as it is a container, not a codec.
: While typically used for high compression, the Matroska format also supports lossless compression MichelleSS 002 H265 mkv
: This is the "container" that holds the video, audio, and subtitle streams. Unlike MP4, the MKV format is favored for its flexibility, allowing for multiple audio tracks (different languages) and various subtitle formats within a single file. Technical Advantages MKV will likely support these too, as it
ffmpeg -i input.mkv -c copy output.mp4