On Tue, 7 Apr 2015 07:13:16 +0800 Ben de Groot <yng...@gentoo.org> wrote:
> On 6 April 2015 at 17:35, Michał Górny <mgo...@gentoo.org> wrote: > > 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'. > > No, it does not suggest that. It simply reflects the history of the > issue: once upon a time we had ffmpeg. Then libav was introduced and > at some point made the default implementation. Now we are switching > back to ffmpeg as default implementation. There is no politics in my > statement. > > > > > This is off-topic, and strongly biased. > > The original statement may give the impression that mpv is to libav > what mplayer is to ffmpeg. Many users were surprised to find out that > mpv upstream actually recommends ffmpeg, and that some of mpv's > features do not work with libav. If we are going to specifically > recommend mpv, then it is something users need to be aware of. > > We could change it to: media-video/mpv works with both ffmpeg and > libav, though some of its features require ffmpeg. Or something along > those lines. > > >> 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. > > It's not so much ping-ponging as stumbling upon what is the best > solution for our users. Some years ago libav was made a soft default. > And if I recall correctly, that was done with very little discussion. > Recently this default was made harder by adding USE=libav to the base > profile. This resulted in quite a backlash from users. > > Moreover, many upstreams of consuming packages actually prefer ffmpeg. > Add to that the upstream ffmpeg policy of merging in changes from > libav. > > All in all, from an end-user point of view it makes more sense to have > ffmpeg as default. And when users were asked, they overwhelmingly > expressed support for changing the default to ffmpeg. > > I see no reason to stick with libav as default, except political > (which I'm trying to avoid here). > +1 -- kind regards Ian Delaney
