Author: dmeyer
Date: Fri Dec 29 20:23:48 2006
New Revision: 2309
Modified:
trunk/popcorn/src/backends/gstreamer/child.py
trunk/popcorn/src/generic.py
Log:
provide some doc about pixel-aspect-ratio
Modified: trunk/popcorn/src/backends/gstreamer/child.py
==============================================================================
--- trunk/popcorn/src/backends/gstreamer/child.py (original)
+++ trunk/popcorn/src/backends/gstreamer/child.py Fri Dec 29 20:23:48 2006
@@ -142,17 +142,6 @@
# xaspect = display_aspect[0] * fullscreen[1]
# yaspect = display_aspect[1] * fullscreen[0]
# vo.set_property('pixel-aspect-ratio', '%s/%s' % (xaspect,
yaspect))
- #
- # For popcorn we should either get both values to the player
- # (xaspect, yaspect) or both variables. The later is much easier
- # for the user to configure.
- #
- # Maybe we should create a config option for the monitor aspect
- # 16/9, 15/9 or 4/3. This is what the user needs. The fullscreen
- # values could be get during runtime. Maybe we can ask the x server
- # for the resolution or for non x based code we could ask the given
- # kaa.display display (fb, dfb). This would be the best choice for
- # the user.
goom = gst.element_factory_make("goom", "goom0")
self._gst.set_property('vis-plugin', goom)
Modified: trunk/popcorn/src/generic.py
==============================================================================
--- trunk/popcorn/src/generic.py (original)
+++ trunk/popcorn/src/generic.py Fri Dec 29 20:23:48 2006
@@ -100,7 +100,34 @@
# settings that are set global is most cases
'postprocessing': False,
'software-scaler': True,
- 'pixel-aspect-ratio': '1:1', # of the output
+
+ # The pixel-aspect-ratio is set for the output. If both
+ # the screen resolution and the physical resolution of the
+ # monitor / tv are the same, this has to be set to 1:1.
+ # For all other cases this needs to be calculated. Because
+ # kaa.popcorn may not know the real fullscreen resolution
+ # for same displays, simple settings for an aspect like
+ # 4:3 or 16:9 are not possible (and a window may have a
+ # different aspect ratio than the screen itself). And
+ # since a config should work with different X-Server
+ # resolutions this has to be a player property.
+ #
+ # An easy way to calculate this is to use
+ # a1 = display_aspect[0] * fullscreen[1]
+ # a2 = display_aspect[1] * fullscreen[0]
+ # set_property('%s:%s' % (a1, a2)
+ # with display_aspect as physical monitor aspect and
+ # fullscreen the maximum pixels.
+ # So for a 16:9 TV and a 800x600 screen the
+ # pixel-aspect-ratio is 16 * 600 : 9 * 800.
+ #
+ # An application like Freevo who knows the fullscreen size
+ # can offer a simpler way for the user to only provide the
+ # monitor aspect (4:3, 16:9, 15:9 and 15:10)
+ #
+ # Note: the value has to be a string with int values or
+ # gstreamer won't work.
+ 'pixel-aspect-ratio': '1:1',
# settings usefull for changing after a stream is
# loaded.
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