Mediapath option

[Nykakin]

For my project I needed a way to provide a custom prefix for output MPEG DASH media files so I added --media-prefix option to mp4-dash.py.

$ mp4dash input.mp4 --profile=on-demand --force --output-dir=. --media-prefix=test-prefix
Parsing media file 1: input.mp4
Extracting track 2 from input.mp4
Extracting track 1 from input.mp4
Parsing media file 1: tmp4ETFDr = Extracted[track 2 from input.mp4]
Parsing media file 2: tmpJkU6GQ = Extracted[track 1 from input.mp4]
Processing and Copying media file tmpJkU6GQ = Extracted[track 1 from input.mp4]
Processing and Copying media file tmp4ETFDr = Extracted[track 2 from input.mp4]
$ ls
input.mp4 stream.mpd test-prefix-audio-und.mp4 test-prefix-video-1.mp4

[barbibulle]

There's an equivalent fix that was integrated in the main distribution. Let me know if that doesn't address your requirements.