[Bug 749542] On Windows most combinations of muxers/encoders do not work

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=749542

--- Comment #5 from Harry <bugzilla.gnome.org at harrym.e4ward.com> ---
Apologies if I'm not yet up to speed on debugging techniques.
Results for the first :

gst-launch-1.0 audiotestsrc num-buffers=500 ! avenc_ac3 ! avimux ! filesink
location=ac3.avi
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
0:00:00.367596792  8808   08F53208 ERROR  libav
gstavaudenc.c:540:gst_ffmpegaudenc_encode_audio:<avenc_ac3-0> Failed to encode
buffer: -22 - Error number -22 occurred
Got EOS from element "pipeline0".
Execution ended after 0:00:00.050150843
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

The resulting file ac3.avi is 142590 bytes long and is playable : 12 seconds of
beeee...eeep.
Mediainfo confirms it as of AVI format and AC3 codec.

I note that gst-play is not included in the Windows release,

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