On Sun, Feb 8, 2009 at 10:08 PM, Kevin Kofler <kevin.kofler@xxxxxxxxx> wrote: > Gregory Maxwell wrote: >> It's another indicator that Fedora should discontinue shipping these >> non-free media focused infrastructures rather than continuing to patch >> the non-free stuff out. > > Are you volunterring to fix Phonon's GStreamer backend? It has tons of bugs. > The xine-lib backend is the only reliable and recommended one. I wasn't aware that it was broken, but I don't use KDE. Fedora ought not have two parallel media codec infrastructures if it can at all be avoided. Even if it takes more effort to fix KDE to use GStreamer, doing so will resolve two problems (two codec infrastructures; Free media support) rather than one (Free media support). >> Some of the proprietary-codecs focused tools provide their own home >> grown implementations of the codecs (i.e. ffmpeg). These often do not >> implement the full spec, so its important to test their behaviour. > > Huh? FFmpeg uses libvorbis and libtheora. Only optionally, unfortunately. I.e. see ffmpeg libavcodec/vp3.c. Or try playing http://people.xiph.org/~xiphmont/test-vectors/vorbis/lsp-test.ogg with something that uses ffmpeg (like mplayer): crackles and sputters. The ffmpeg Vorbis decoder doesn't implement the full spec, only the more commonly used parts. FFmpeg even ships its own totally broken Vorbis encoder that delivers miserable quality even at high bitrates, which it uses if you ask for "vorbis". :( It's really a mess. There is a culture of associated with many of these proprietary codec libraries where they use their own version of everything— which reduces dependency problems, and isn't a big deal for the non-free codecs where their is no official version. But at as a result of this plus an overall indifference towards free codecs, support for the free stuff generally stinks in these libraries. I have no interest in fixing FFmpeg's Theora and Vorbis codecs, they should be using the BSD licensed reference implementations, other people with the expertise feel the same way. FFMpeg wants to have their own version for their own reasons. ::shrugs:: It has been this way for years, it's an upstream problem, and I don't think Fedora should count on fixing it, especially since Fedora will never ship these pieces of software except in highly patched and cut down forms. -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
