Hello having 2 questions about x264 metadata:
1. Sometimes x264 output consequently muxed by mkvmerge contains in [Video] section field about average bitrate, sometimes not. I wanted to ask on what conditions depends presence of this metafield and how can I force to final container always containing metafield about average (and possibly peak) bitrate. This conserns cases when video is made in variable bitrate mode.
2. Is there a way to add a tag with custom name and value to x264 output, that couldnot be easily altered or removed by rebuilding with Mkv toolnix?
Thank U for answering