Firefox, HTML5 and high res. videos

[Ahmad Samir]

On 23 August 2015 at 09:06, Heinz Diehl <htd+ml at fritha.org> wrote:

> On 23.08.2015, Ahmad Samir wrote:
>
> > I am not sure what exactly is happening on your system, but I'd try
> > enabling MSE with h264, make sure these are set to true:
> > media.fragmented-mp4.enabled
> > media.fragmented-mp4.exposed
> > media.fragmented-mp4.ffmpeg.enabled
> > media.mediasource.mp4.enabled
>
> Thanks a lot for highly valuable information, you made my day!
> With these options enabled and webm disabled, I'm able to play both
> highres videos and all the other non-highres ones that didn't work.
>
> The blocker for those other videos was MSE & WebM VP9 being
> enabled. Now, Firefox uses MSE & H.264 and does exactly what I want it
> to do.
>
>
youtube seems to prefer mp4/h264 over webm/vp{8,9}, so if your system
supports both, youtube will default to playing mp4/h264.

And it seems that MSE support is much better with FF40; I remember testing
it with older versions a couple of months ago and it was awful.

--
Ahmad Samir
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