Today I was preparing some video material for upload onto the Azure Media Services portal. Since MXF format is not supported as source for Azure Media Services I did transcode it with ffmpeg. I uploaded the videos but every encode job would fail with this error
UserInput : File type or codec not supported.
I checked again and again:
- mp4 container: supported
- aac audio, various profiles: supported
- h264 video, various profiles: supported
But every encode task would fail. It turns out that ffmpeg encodes video in a 4:2:2 bitplane format by default but Azure supports only 4:2:0. By adding the option
the the ffmpeg command line Azure encodes the videos resulting without any issue