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mkvmerge MPEG-2 video in MP4 written with invalid CodecID V_MPEG70 #1995
I used mkvmerge 12.0.0 on an MP4-contained video file. The input file plays perfectly well with VLC media player. The video codec of the input file is MPEG-2.
After muxing to Matroska using mkvmerge, the resulting output file does not display video and plays as audio only. The video format for the output file is 'V_MPEG70'.
This behaviour is reproducible with both mkvmerge gui and cli on Ubuntu 16.04. As a workaround, I am using ffmpeg (
I've attached a short portion of the MP4 input file for reference.