def set_volume(self, lvolume, rvolume=None):
check_mixer()
# This logic differs a bit from pygames because we can use a better
# sentinal value
if rvolume is None:
# No Panning
if sdl.Mix_SetPanning(self.chan, 255, 255) == 0:
raise SDLError.from_sdl_error()
volume = int(lvolume * 128)
else:
# Panning
left = int(lvolume * 255)
right = int(rvolume * 255)
if sdl.Mix_SetPanning(self.chan, left, right) == 0:
raise SDLError.from_sdl_error()
volume = 128
sdl.Mix_Volume(self.chan, volume)
def play(self, loops=0, maxtime=-1, fade_ms=0):
"""play(loops=0, maxtime=-1, fade_ms=0) -> Channel
begin sound playback"""
if fade_ms > 0:
channelnum = sdl.Mix_FadeInChannelTimed(-1, self.chunk, loops,
fade_ms, maxtime)
else:
channelnum = sdl.Mix_PlayChannelTimed(-1, self.chunk, loops,
maxtime)
if channelnum < 0:
# failure
return None
_channeldata[channelnum].sound = self
_channeldata[channelnum].queue = None
sdl.Mix_Volume(channelnum, 128)
sdl.Mix_GroupChannel(channelnum, self._chunk_tag)
return Channel(channelnum)
def get_volume(self):
check_mixer()
volume = sdl.Mix_Volume(self.chan, -1)
return volume / 128.0