FFmpeg MKV to MP4 HD

[bat guano]

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> Format/Info : Advanced Video Codec
> Bit rate : 6 410 Kbps
> Width : 1 920 pixels
> Height : 1 040 pixels
> Display aspect ratio : 16:9

> Bit rate : 1 510 Kbps
> Channel(s) : 6 channels
> Channel positions : Front: L C R, Side: L R, LFE
> Sampling rate : 48.0 KHz



Hi
BBC HD is 1280x720 h264 video with 2 channel aac audio.
Your mkv file is 1920x1040 h264 video with 6 channel aac audio.

Do a 60 second test run using "-t 60" with FFmpeg.
Try these settings for a first attempt:-
ffmpeg -i filename.mkv -t 60 -vf "scale=1280:trunc(ow/a/2)*2" -vcodec libx264 -acodec libfaac -aq 120 -ac 2 filename.mp4