[gstreamer-bugs] [Bug 398196] multichannel AAC playback

[GStreamer (bugzilla.gnome.org)]

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  GStreamer | gst-plugins-bad | Ver: 0.10.x


Tim-Philipp Müller changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEEDINFO
            Summary|multichannel playback       |multichannel AAC playback




------- Comment #5 from Tim-Philipp Müller  2007-01-25 11:02 UTC -------
I created some clones of this bug to handle the different issues separately:

 - multichannel AAC playack: this bug
 - support for 'mp3 surround' files: bug #400550
 - only 2 channels found in dts-in-wav files: bug #400555

> ** Message: don't know how to handle audio/mpeg, mpegversion=(int)4,
> framed=(boolean)true, codec_data=(buffer)133056e59d4800, rate=(int)48000,
> channels=(int)2
> ERROR: from element /playbin0: You do not have a decoder installed to handle
> this file. You might need to install the necessary plugins.

This means you don't have the 'faad' plugin installed, or it's not installed
properly, it's part of gst-plugins-bad (please use the libfaad* package from
the same repository as you get your GStreamer faad plugin in from).


> But i can't play normal stereo aac, mp4 either (have all necessary plugins
> installed).
> The strange thing is, that booth (stereo and multichannel) mp4 files played
> with gstreamer gives: channels=(int)2 (even if there where playable, that
> would be stereo).

That's not necessarily a problem (cosmetic mostly), the decoder will ignore
this in practice.


> So the point is, that gstreamer is unable to handle more than 2
> channels beside ac3?

That's neither the point nor true (there's lots of quicktime trailers with
multichannel AAC audio and DVDs with DTS tracks). Bugs are always possible of
course.


Could you please:

 1) install the 'faad' plugin and make sure it shows up in gst-inspect-0.10

 2) tell us the output of the following commands:

    $ gst-inspect-0.10 identity | grep Version
    $ gst-inspect-0.10 playbin | grep Version
    $ gst-inspect-0.10 wavparse | grep Version
    $ gst-inspect-0.10 a52dec | grep Version
    $ gst-inspect-0.10 dtsdec | grep Version
    $ gst-inspect-0.10 faad | grep Version


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