[gstreamer-bugs] [Bug 608892] DCA decoder broken in gst-ffmpeg

GStreamer (bugzilla.gnome.org) bugzilla at gnome.org
Sat Aug 14 12:38:49 PDT 2010


https://bugzilla.gnome.org/show_bug.cgi?id=608892
  GStreamer | gst-ffmpeg | 0.10.x

Tim-Philipp Müller <t.i.m> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |UNCONFIRMED
                 CC|                            |t.i.m at zen.co.uk
         Resolution|INCOMPLETE                  |
           Severity|normal                      |blocker

--- Comment #4 from Tim-Philipp Müller <t.i.m at zen.co.uk> 2010-08-14 19:38:43 UTC ---
Just for the record: as Sebastian said, the problem is the downmixing.

The decoder needs to do the downmixing to stereo, and ffdec_* doesn't do that
yet (see bug #587570). Until they do that, the ffdec_* AAC, DTS, AC3 decoders
are not really useful and should not have a rank, so they are not autoplugged.
Marking bug as blocker for this.

A secondary problem may be in the audiosinks, especially alsasink may advertise
more channels and then either downmix internally or just drop channels without
downmixing. This you need to work around by making alsasink use the right
device (e.g. device=front) or forcing it to 2 channels by putting this into
your gconf musicaudiosink key: "capsfilter caps='audio/x-raw-int,channels=2' !
alsasink".

Alsasink needs to do things differently so this isn't a problem any longer
(there are bugs for that elsewhere).

-- 
Configure bugmail: https://bugzilla.gnome.org/userprefs.cgi?tab=email
------- You are receiving this mail because: -------
You are the QA contact for the bug.
You are the assignee for the bug.



More information about the Gstreamer-bugs mailing list