If software at this site is useful to you then please consider a donation: *** Big thanks to all those who have donated to support this project, you are very directly helping to keep it alive! To all who have not donated: please do so if you can afford it, this project depends on donations. net/~savoury1 for general updates about this Launchpad site before contacting me or reporting any bugs! *** *** Please always see https:/ /launchpad. *** mpv builds here depend on the private PPA for successful install! *** Somehow in the back of my mind I believe we need to come up with the right ffmpeg version with the right options compiled in and force firefox to use the libs.Latest mpv 0.37.0 (requires other PPAs for install) for Xenial & newer. This version of ffmpeg-rpi has v4l, v4l-requests and m2m but it was really built for vlc to run outside of a DE like kodi-rpi does for HW. Is it actually using HW I do not see anything in the terminal to indicate that it is or is not to be sure. Here the box is checked and the vid plays with only ffmpeg-rpi installed: If you uncheck it and then uncheck the new Force HW if available then mp4 vids will play with SW decoding. Supposedly under firefox Edit → Settings there is a checkbox to enable/disable HW decoding when checked I see that HW is forced and mp4 vids will not play.

Since the 117 snap is a mounted read only squashfs I can run firefox outside of the mounted environment by running firefox from /var/lib/snapd/snap/firefox/3006/usr/lib/firefox/ and it picks up the ffmpeg-rpi libs installed on the system when no other version of ffmpeg is installed. I can get 117 and 116 to play the big buck bunny mp4 on youtube if I only have ffmpeg-rpi (v4.4.4-2) installed. Firefox does not seem to be required to be compiled with ffmpeg as it does not retain what version of libs used after compile as I did compiling with only the libs/headers with ffmpeg-rpi from ARCH installed. It appears firefox uses a version of ffmpeg starting with the highest version installed first. I have added a little more to my learning curve today.

Mpv 0.36 for windows download