[Bug 699924] smoothstreaming: no audio with BBC bigbuckbunny stream

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=699924
  GStreamer | gst-plugins-bad | git

Antonio Ospite <ospite> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #257428|0                           |1
        is obsolete|                            |

--- Comment #16 from Antonio Ospite <ospite at studenti.unina.it> 2013-10-31 17:07:47 UTC ---
Created an attachment (id=258677)
 View: https://bugzilla.gnome.org/attachment.cgi?id=258677
 Review: https://bugzilla.gnome.org/review?bug=699924&attachment=258677

mssdemux: fix setting codec_data when using WaveFormatEx

OK, the smoothstreaming specifications[1,2,3] always mention WAVEFORMATEX
and never smaller structures like WAVEFORMAT or PCMWAVEFORMAT, so I think the
buffer can assumed to be at least 18 bytes and always consuming the wav
header gives the (possibly empty) codec private data.

Version 1 (Thanks to the Wayback Machine):
[1]
http://web.archive.org/web/20120907004742/http://www.iis.net/community/files/media/smoothspecs/%5BMS-SMTH%5D.pdf

Version 2.1:
[2]
http://download.microsoft.com/download/B/0/B/B0B199DB-41E6-400F-90CD-C350D0C14A53/%5BMS-SSTR%5D.pdf

Version 4:
[3]
http://download.microsoft.com/download/9/5/E/95EF66AF-9026-4BB0-A41D-A4F81802D92C/%5BMS-SSTR%5D.pdf

The attached file contains three commits, the first two are preliminary
changes, the third one is the actual fix for this issue. The commits can be
imported with "git am" of course.

Ciao,
   Antonio

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