ffmpeg hwa decoder base class is only for internal use
gl: fix rgba32 display. fix wrong bpp computation
rgb48 support. only desktop gl
gl: pixel format and gl mapping fix for dynamic gl
do not quit video thread before decode and display

if a video has only 1 frame(an image), then stop state may be set before
frame is delivered to renderers and nothing will be displayed.
Merge remote-tracking branch 'upstream/master'
opengl: shaders for rgb. filtering.

Added shader procesing for RGB mode.
-GamaRGB
-FilterSharp
Added in player tile information about directory images that play now,
for sequence of images.