hi guys, i have to say like sabayon a lot and i have in my work workstation[i use gentoo at home tho] but the multimedia side is horrendous, is slow and eat resources like a freaking monster compared to just emerging ffmpeg.
Phenom II X4 965 @3.8ghz
Mobo MSI 890FX
Nvidia geforce 8800gts 320[oldie but good enough for work] using nouveau <-- dont like blob
8GB of RAM DDR3 1866
OCZ Vertex 4 120GB SSD + 2 TB Seagate Barracuda 7200RPM
problems i encountered.
1.) ffmpegthumbailer in KDE + libav: KIO process take a hugely massive amount of ram and CPU(70% each core) and is really slow the first time it create the thumbnails <--- neither happens when using ffmpeg
2.) mplayer/vlc/dragon player skip frames like doomsday : i mean playing SD content in h264/webm/mpeg1 in this machine is like at 8 fps with a bazillion droped frame logs due to slow CPU <--- WTF i just emerge ffmpeg and can perfectly watch 40mbits 1080p h264 movies without skipping a frame[hunger games BluRay]
3.) html5 content in browsers: same sad story than mplayer, basically the videos play so slow that the audio is like 1m ahead of the video and some times the browser just give up or crash[at least rekonq get fixed when switched to ffmpeg have to test chromium/firefox]
4.)opus well a no go, with ffmpeg just peachy
FFmpeg is emerged using standard flags nothing else
I understand libav/ffmpeg has become a religious thing but if you are gonna switch please choose more carefully, the multimedia stack is a slowness fest[in your defense ubuntu is the same crap and uses libav too]. So i don't know if it is a compilation issue or a version issue but for something so common as video playing and as a high performance distro is something should be properly tested and if ffmpeg works better just use it or at least the option to switch binaries[for ppl that don't know how to emerge packages for example]