+ try:
+ can_downmix = open("/proc/stb/audio/ac3_choices", "r").read()[:-1].find("downmix") != -1
+ except:
+ can_downmix = False
+
+ SystemInfo["CanDownmixAC3"] = can_downmix
+ if can_downmix:
+ def setAC3Downmix(configElement):
+ open("/proc/stb/audio/ac3", "w").write(configElement.value and "downmix" or "passthrough")
+ config.av.downmix_ac3 = ConfigYesNo(default = True)
+ config.av.downmix_ac3.addNotifier(setAC3Downmix)
+
+ try:
+ can_osd_alpha = open("/proc/stb/video/alpha", "r") and True or False
+ except:
+ can_osd_alpha = False
+
+ SystemInfo["CanChangeOsdAlpha"] = can_osd_alpha
+
+ def setAlpha(config):
+ open("/proc/stb/video/alpha", "w").write(str(config.value))
+
+ if can_osd_alpha:
+ config.av.osd_alpha = ConfigSlider(default=255, limits=(0,255))
+ config.av.osd_alpha.addNotifier(setAlpha)