Dnia 2015-04-06, o godz. 14:10:12 Ben de Groot <yng...@gentoo.org> napisał(a):
> On 30 March 2015 at 00:23, Michał Górny <mgo...@gentoo.org> wrote: > > Dnia 2015-03-30, o godz. 00:07:16 > > > > Include example code. > > > > Updated version: > > Title: FFmpeg default > Author: Ben de Groot <yng...@gentoo.org> > Content-Type: text/plain > Posted: 2015-04-07 > Revision: 1 > News-Item-Format: 1.0 > Display-If-Installed: media-video/ffmpeg > Display-If-Installed: media-video/libav > > Since the choice between ffmpeg and libav has been made more > explicit, there has been a lot of discussion about what the > default implementation should be. It can be concluded that > media-video/ffmpeg has wider support, and would be somewhat > more convenient for most end-users. > > For this reason the default implementation has been switched > back from media-video/libav to media-video/ffmpeg by removing > the libav useflag from the base profile. 'Switched back' is suggesting there was some 'unintentional' switch from ffmpeg to libav. Keep this free of politics, and just 'switched'. > If the libav useflag is already globally enabled or disabled > in /etc/portage/make.conf, then no further action is required. > > Users who implicitly relied on libav being enabled in their > profile, and who wish to continue using libav, should enable > USE=libav in their /etc/portage/make.conf file. > > > Also please prepare an update to the USE=libav news item to state > > updated default. > > Diff: > > --- > /var/portage/metadata/news/2015-02-01-use-libav/2015-02-01-use-libav.en.txt > 2015-02-04 05:31:20.000000000 +0800 > +++ /home/ben/tmp/2015-02-01-use-libav.en.txt 2015-04-06 > 14:05:56.982039939 +0800 > @@ -2,7 +2,7 @@ > Author: Michał Górny <mgo...@gentoo.org> > Content-Type: text/plain > Posted: 2015-02-01 > -Revision: 1 > +Revision: 2 > News-Item-Format: 1.0 > Display-If-Installed: media-video/ffmpeg > Display-If-Installed: media-video/libav > @@ -20,17 +20,17 @@ > However, whenever appropriate additional USE=libav will be introduced to > control the preference of one implementation over the other. > > -Users who currently use libav (the Gentoo default) do not have to > -perform any action since USE=libav is enabled by default. It should be > -noted that the users still need to enable USE=ffmpeg on packages with > -optional libav support as well. Users who want to use ffmpeg instead > -need to specify USE=-libav in make.conf explicitly. > +Users who currently use libav need to enable USE=libav in > +/etc/portage/make.conf. It should be noted that users still need to > +enable USE=ffmpeg on packages with optional libav support as well. > +Users who currently use ffmpeg need to take no action. > > Please also note that some packages support only one of the two > implementations. An attempt to install one of those packages may result > in blockers requiring the user changes the global USE=libav state. > The most notable example of such package is media-video/mplayer. > -media-video/mpv may be used as a replacement for users who prefer libav. > +media-video/mpv may be used as a replacement for users who prefer libav, > +even though upstream mpv developers recommend using ffmpeg. This is off-topic, and strongly biased. > Please do not alter the state of 'libav' flag on a per-package basis > (e.g. via package.use). The flag needs to be set globally to have FYI: since Council's meeting in one week, I have added this to the agenda. I'm really concerned about Gentoo's PR when users suffer due to developers ping-ponging implementations/defaults. -- Best regards, Michał Górny
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