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Bug 762085 - gst-base 1.7 update created background buzzing noise with audioconvert
gst-base 1.7 update created background buzzing noise with audioconvert
Status: RESOLVED FIXED
Product: GStreamer
Classification: Platform
Component: gst-plugins-base
1.7.1
Other Linux
: Normal blocker
: 1.7.2
Assigned To: GStreamer Maintainers
GStreamer Maintainers
Depends on:
Blocks:
 
 
Reported: 2016-02-15 15:53 UTC by Sebastien Bacher
Modified: 2016-02-17 10:48 UTC
See Also:
GNOME target: ---
GNOME version: ---



Description Sebastien Bacher 2016-02-15 15:53:30 UTC
The bug has been reported on https://launchpad.net/bugs/1539700

When using crossfading in rhythmbox the sound is noisy like in https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1539700/+attachment/4559321/+files/Rb-audio_cd.ogg

The issue is not there with gst-plugins-base 1.6.3 but is with 1.7.1

That gst command has a similar issue
$ gst-launch-1.0 cdiocddasrc mode=1 ! audioconvert ! audioresample ! pulsesink


I've tried to backport https://cgit.freedesktop.org/gstreamer/gst-plugins-base/commit/?id=7bbfa39ada905b44743170f6c29d13e5fefb5888 but that doesn't resolve the issue
Comment 1 Sebastien Bacher 2016-02-15 15:55:33 UTC
that command also has the issue

"gst-launch-1.0 -v audiotestsrc wave=silence ! queue ! adder name=a ! audio/x-raw,format=S16LE,rate=44100,channels=2 ! audioconvert ! autoaudiosink   uridecodebin uri=file:///tmp/song.mp3 ! audioconvert ! queue ! a."
Comment 2 Edward Hervey 2016-02-16 16:22:46 UTC
(In reply to Sebastien Bacher from comment #1)
> that command also has the issue
> 
> "gst-launch-1.0 -v audiotestsrc wave=silence ! queue ! adder name=a !
> audio/x-raw,format=S16LE,rate=44100,channels=2 ! audioconvert !
> autoaudiosink   uridecodebin uri=file:///tmp/song.mp3 ! audioconvert ! queue
> ! a."

I can't seem to reproduce that issue on master.

Can you check with master or latest 1.7.9x pre-release ?
Comment 3 Sebastien Bacher 2016-02-16 17:44:42 UTC
ok, I'm going to have a look to build from git ... but where can I find the pre-release? I'm looking on http://ftp.gnome.org/pub/gnome/sources/gst-plugins-base/1.7/ but 1.7.1 is the most recent tarball
Comment 4 Tim-Philipp Müller 2016-02-16 17:59:04 UTC
1.7.1 is the most recent tarball indeed.

There were multiple fixes in git master that might fix this, so would be awesome if you could test that if you can reproduce the reported issue yourself.
Comment 5 Sebastien Bacher 2016-02-17 10:14:52 UTC
indeed, it seems fixed with git ... do you know when are the next 1.7 tarballs going to be rolled out?

https://lists.freedesktop.org/archives/gstreamer-announce/2015-October/000359.html states that 1.8.0 should be out by now, did the plan change? should we roll back Ubuntu to 1.6 (our feature freeze is this week and we decided to go for 1.7 based on the 1.8 roadmap that seems off now...)
Comment 6 Sebastian Dröge (slomo) 2016-02-17 10:26:13 UTC
Hopefully 1.7.2 will be released this or next week, and with that the feature freeze starts. From there on we only need to fix all remaining blocker bugs and do 1-2 1.7.9x release candidates until we're certain that nothing is broken.
Comment 7 Sebastien Bacher 2016-02-17 10:48:01 UTC
Great, thanks for the status update, looking forward having new tarballs including that fix! ;-)