Unable to get MediaSource working with mp4 format in chrome

Question

Based on the example here

I downloaded the webm file and encoded as an mp4 file which will play locally but I\'m unable to use it as a media source.

MP4Box r

Answer 1

Your codec is wrong too, would be 'video/mp4; codecs="avc1.4D4001,mp4a.40.2"'