media-video/libav >=9.17

Schnulli · Guru Joined: 25 Jun 2010 Posts: 320 Location: Bremen DE

Hi all,
i had been a user of media-video/libav =<9.17
the old codec worked real fast and smoothy, listen FAST ! But buggy, so i needed as well to change.
The new codec is secure but so damned slow that i realy think about to use the old codec again in an isolated enviroment

The new Version SUCKS bec. sooooooo slow.

chithanh · Posted: Tue Feb 10, 2015 3:06 pm Post subject:

Did you read the news item about CPU_FLAGS_X86? ffmpeg/libav have been converted to use CPU_FLAGS_X86="mmx" etc.

If you do not set those new flags, then the resulting code will become much slower.

Schnulli · Guru Joined: 25 Jun 2010 Posts: 320 Location: Bremen DE

Hi chithanh

using cat /proc/cpuinfo shows me the flags whom i use, mmx is also one flag and has been setten in /etc/portage/make.conf

It is slower than the old
comparing means i try out, the quality is a bit better but the performance is in my opinion much to slow.
doing a backstep again and using it offline and again all is fine

Rendering means it takes time, if something new takes to much time, i use the old, thats it

Ant P. · Watchman Joined: 18 Apr 2009 Posts: 6920

Post your "emerge --info"

229566 · Tux's lil' helper Joined: 16 Aug 2010 Posts: 127

Schnulli · Guru Joined: 25 Jun 2010 Posts: 320 Location: Bremen DE