The mp4 muxer now writes a place-holder mdat as a free atom followed by a 0-byte mdat that covers the rest of the file, making it possible to rewrite it as 64-bit, or leave it as-is if nothing else is written afterward
The mp4 muxer now writes a place-holder mdat as a free atom followed by a 0-byte mdat that covers the rest of the file, making it possible to rewrite it as 64-bit, or leave it as-is if nothing else is written afterward