[Bug 735748] playbin: can't play an avi file in totem with audio-filter=scaletempo

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=735748
  GStreamer | gst-plugins-base | 1.4.1

Tim-Philipp Müller <t.i.m> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |NEW
                 CC|                            |t.i.m at zen.co.uk
          Component|don't know                  |gst-plugins-base
            Summary|Can't play an avi file      |playbin: can't play an avi
                   |                            |file in totem with
                   |                            |audio-filter=scaletempo
     Ever Confirmed|0                           |1
           Severity|normal                      |blocker

--- Comment #11 from Tim-Philipp Müller <t.i.m at zen.co.uk> 2014-09-01 11:11:16 UTC ---
This is indeed a regression from 1.2 as far as I can tell:

gst-1.4 $ gst-launch-1.0 playbin uri=file:///734963.avi
audio-filter='scaletempo'
streaming stopped, reason not-negotiated

gst-1.4 $ gst-launch-1.0 playbin uri=file:///734963.avi
audio-filter='scaletempo ! audioconvert'
streaming stopped, reason not-negotiated

gst-1.4 $ gst-launch-1.0 playbin uri=file:///home/tpm/samples/misc/734963.avi
audio-filter='audioconvert ! scaletempo'
works

gst-1.2 $ gst-launch-1.0 playbin uri=file:///home/tpm/samples/misc/734963.avi
audio-filter='scaletempo'
works

so I'm guessing the audio-filter is now plugged before the
audioconverters/resamplers, or we have dropped a converter we had before the
audio-filter before.

(mad outputs S32LE and scaletempo only handles S16LE or F32LE)

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