Solved Firefox audio high CPU usage

[Deleted member 45312]

The tab for openH264 plugin is saying me that it will be installed shortly, but nothing happened. Is it a binary for Linux ?
Is it due to my firewall ?

 

[Deleted member 45312]

Found it.
It is in port tree : multimedia/openh264.

 

[talsamon]

It says in the addon tab under more:

This plugin is automatically installed by Mozilla to comply with the WebRTC specification and to enable WebRTC calls with devices that require the H.264 video codec. Visit http://www.openh264.org/ to view the codec source code and learn more about the implementation

Don't know why it is not installed on your pc. Has surely nothing to do with firewall. It is no binary for linux. (look with locate -i h264).

 

[Deleted member 45312]

Well. Installed multimedia/openh264 from ports tree and it is working with Firefox.
Videos seems to play better. I haven't got no more stalling video while moving mouse cursor on page. Glitches are always here, but it may be H264 artifacts because my ADSL line is slow.

 

[talsamon]

I see this thread as solved.

 

[fulano]

Next try: compiled audio/alsa-plugins with

BLKCNT_P2=on: Restrict number of fragments to ^2 aligned
BUFSZ_P2=on: Restrict buffer size to ^2 aligned

in the moment it looks good.

Worked for me also!
Many many thanks talsamon and dlegrand!