FFMPEG converted mp4 file does not play in firefox and chrome

Question

I have used FFMPEG command to convert flv video file to mp4 and use html5 video tag and play video in browser. But after the video is converted to mp4 using ffmpeg it does n

Answer 1

Based on the answer of @Unrealist it seems it is a problem of video codec compatibility. You need to check browsers video format support, and then select appropiate audio and video codec in FFMPEG:

HTML5 video codecs browsers support chart