Where it belongs. Used with --video-filter rotate --rotate-use-motion

While this plugin is normally only used with pace-controlled outputs,
it does not need pace control itself.

Any object can do. So do not bother with p_sout.

This reverts commit 2c055dc8.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

This patch fixes playback for this VOD stream:
http://mediadl.microsoft.com/mediadl/IISNET/SmoothMedia/Learn/795/Bill_Staples_Cineform.ism/ManifestSigned-off-by: Jean-Baptiste Kempf <jb@videolan.org>

and prepare subtitle support
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
Signed-off-by: Rafaël Carré <funman@videolan.org>

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>
Signed-off-by: Rafaël Carré <funman@videolan.org>

Since audio-channels was not a configuration item, renaming is a mere
internal matter. This also fixes callback handling and factors code.

(fix #7537)

If the calling thread is using COM with MTA model, then CoInitializeEx()
will fail, and CoUninitialize() will be unbalanced. Ultimately, the
calling thread is likely to crash. (CoInitializeEx() could also fail in
case of memory error, but that is unlikely).