On 21 August 2015 at 18:04, Heinz Diehl <htd+ml@xxxxxxxxxx> wrote:
media.fragmented-mp4.enabled
media.fragmented-mp4.exposed
Hi,
F22, latest Firefox 40. With standard configuration, I can't play any
highres video on Youtube (720 or 1080p). When setting
media.mediasource.enabled
media.mediasource.webm.enabled
to "true" as recommended by the Mozilla Community, highres videos play
just fine. BUT some other videos now do not play any longer. In
particular, when setting
media.mediasource.webm.enabled
to "false", those non-working videos work again. But then, no highres
is possible. Example:
https://www.youtube.com/watch?v=kFzN6j6FjJc
[...]
IIUC, there're two different ways of not using adobe flash to play youtube videos:
- The HTML5 player uses the gstreamer backend on the system
- The HTML5 player uses the MSE (Media Source Extensions) stuff
- If MSE can't work on your system either with webm/VP9 format or with the mp4/h264 format then it'll fallback to the HTML5 player with the gstreamer backend
- With the gstreamer HMLT5 player not all resolutions are available, for example with the gstreamer backend I only get 360p and 720p, and nothing in between or over that range
- I am not sure but I think that not all videos are available in both webm and h264 formats
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
media.mediasource.mp4.enabled
that should make videos become available with more resolutions.
Ahmad Samir
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