x #B977 Fix ChannelLayout for mov files with channel bitmap
x #B977 Fix ChannelLayout for mov files with channel bitmap

A mov file with a 'chan' atom using
kAudioChannelLayoutTag_UseChannelBitmap would have the correct
'ChannelPositions' parameter, but an incorrect 'ChannelLayout':

Channel positions  : Front: L C R, Back: L R, LFE
ChannelLayout      : R C LFE Ls Rs ?

This was due to an off-by-one error when calling
Mpeg4_chan_ChannelBitmap_Layout.

Signed-off-by: Peter Chapman <48e6ba195e6703838cee5e9fa98314f11a039c34@vidcheck.com>

MediaArea/MediaInfoLib,MediaArea/MediaInfoLib,JeromeMartinez/MediaInfoLib,JeromeMartinez/MediaInfoLib,tribouille/MediaInfoLib,tribouille/MediaInfoLib,MediaArea/MediaInfoLib,tribouille/MediaInfoLib,MediaArea/MediaInfoLib,MediaArea/MediaInfoLib,tribouille/MediaInfoLib,MediaArea/MediaInfoLib,MediaArea/MediaInfoLib,JeromeMartinez/MediaInfoLib,tribouille/MediaInfoLib,JeromeMartinez/MediaInfoLib,JeromeMartinez/MediaInfoLib,JeromeMartinez/MediaInfoLib,tribouille/MediaInfoLib,tribouille/MediaInfoLib,JeromeMartinez/MediaInfoLib,MediaArea/MediaInfoLib,JeromeMartinez/MediaInfoLib,MediaArea/MediaInfoLib,tribouille/MediaInfoLib,JeromeMartinez/MediaInfoLib