** Description changed: + [ Description ] + + The version of gst-libav1.0 that made it to xenial-updates contained a + buggy check against the values of an enumeration as present in ffmpeg + 2.8.10, also in xenial. This was in a piece of code that was filtering + ffmpeg's available plugins out of the ones to make it through to gst- + libav's supposed decoders and encoders. The effect is that you can't + play some file formats. (Attached.) + + [ Fix ] + + Instead of doing a range-based comparison on the enumeration, switch to + an explicit blacklist. + + [ QA ] + + 1. Install gstreamer1.0-libav, and try to gst-play1.0 on the following + files supplied by the reporter: + + wmapro + http://samples.mplayerhq.hu/A-codecs/WMA9/wmapro/New%20Stories%20(Highway%20Blues)-2.wma + + wmal + http://samples.mplayerhq.hu/A-codecs/lossless/luckynight.wma + + 2. Check debdiff <gstreamer1.0-libav 1.8.3-1ubuntu0.1.deb> + <gstreamer1.0-libav 1.8.3-1ubuntu0.2.deb> and see that new decoders and + encoders are present wrt 1.8.3-1ubuntu0.1 in xenial-updates. Do the same + against previous version (1.8.2) in x-updates. + + [ Regression potential ] + + If this fix is wrong somehow, then it might make the situation *worse* + or at least not better by not restoring the decoders and encoders that + it should. The (2) case above is designed to check this. Note that there + are some expected removals wrt. 1.8.2 - that's what the upstream commit + was attempting to implement but it was accidentally too broad when used + with ffmpeg 2.8.10. + + [ Original report ] + That is with the current ffmpeg shared in 16.04. So maybe consider reverting patch, i.e. 1.8.2-1 seems to work ok. Otherwise consider building with plugin supplied ffmpeg (called libav), there is recent precedent for static linking as seen by vlc last year. - Sample files - + Sample files - wmapro http://samples.mplayerhq.hu/A-codecs/WMA9/wmapro/New%20Stories%20(Highway%20Blues)-2.wma wmal http://samples.mplayerhq.hu/A-codecs/lossless/luckynight.wma ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: gstreamer1.0-libav 1.8.3-1ubuntu0.1 ProcVersionSignature: Ubuntu 4.8.0-34.36~16.04.1-generic 4.8.11 Uname: Linux 4.8.0-34-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CurrentDesktop: Unity Date: Sat Feb 4 08:51:10 2017 SourcePackage: gst-libav1.0 UpgradeStatus: No upgrade log present (probably fresh install)
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1661842 Title: gstreamer 1.8.3 incorrectly removes some decoders and encoders when built against ffmpeg 2.8.10 To manage notifications about this bug go to: https://bugs.launchpad.net/gstreamer/+bug/1661842/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
