def play(loops=0, startpos=0.0):
"""play(loops=0, start=0.0): return None
Start the playback of the music stream"""
global _current_music, _music_pos, _music_pos_time, \
_music_frequency, _music_format, _music_channels
check_mixer()
if not _current_music:
raise SDLError("music not loaded")
sdl.Mix_HookMusicFinished(_endmusic_callback)
sdl.Mix_SetPostMix(_mixmusic_callback, ffi.NULL)
frequency, format, channels = (ffi.new('int*'), ffi.new('uint16_t*'),
ffi.new('int*'))
sdl.Mix_QuerySpec(frequency, format, channels)
_music_pos = 0
_music_pos_time = sdl.SDL_GetTicks()
_music_frequency = frequency[0]
_music_format = format[0]
_music_channels = channels[0]
volume = sdl.Mix_VolumeMusic(-1)
val = sdl.Mix_FadeInMusicPos(_current_music, loops, 0, startpos)
sdl.Mix_VolumeMusic(volume)
if val == -1:
raise SDLError.from_sdl_error()
def _endmusic_callback():
global _current_music, _queue_music, _music_pos, _music_pos_time
if _endmusic_event is not None and sdl.SDL_WasInit(sdl.SDL_INIT_AUDIO):
event.post(event.Event(_endmusic_event))
if _queue_music:
if _current_music:
sdl.Mix_FreeMusic(_current_music)
_current_music = _queue_music
_queue_music = None
sdl.Mix_HookMusicFinished(_endmusic_callback)
_music_pos = 0
sdl.Mix_PlayMusic(_current_music, 0)
else:
_music_pos_time = -1
sdl.Mix_SetPostMix(ffi.NULL, ffi.NULL)
def _endmusic_callback():
global _current_music, _queue_music, _music_pos, _music_pos_time
if _endmusic_event is not None and sdl.SDL_WasInit(sdl.SDL_INIT_AUDIO):
# Pygame doesn't do the same checks for this path as in
# event.post, and people rely on that, so we also duplicate
# the logic
event = ffi.new('SDL_Event*')
event.type = _endmusic_event
sdl.SDL_PushEvent(event)
if _queue_music:
if _current_music:
sdl.Mix_FreeMusic(_current_music)
_current_music = _queue_music
_queue_music = None
sdl.Mix_HookMusicFinished(_endmusic_callback)
_music_pos = 0
sdl.Mix_PlayMusic(_current_music, 0)
else:
_music_pos_time = -1
sdl.Mix_SetPostMix(ffi.NULL, ffi.NULL)