def _create_buffers(self, source):
"""Creates a new set of OpenAL buffers from the passed
SoundSource."""
queue = []
for snddata in source._buffers:
if snddata._bufid is None:
bufid = None
for kbufid, kdata in self._buffers.items():
if kdata is None:
# free buffer found
bufid = kbufid
break
if bufid is not None:
snddata._bufid = bufid
self._buffers[bufid] = snddata
else:
# No free buffer id, create a new one
bufid = al.gen_buffers(1)[0]
self._buffers[bufid] = snddata
snddata._bufid = bufid
# Buffer id assigned, now buffer the data.
al.buffer_data(snddata._bufid, snddata.format, snddata.data,
snddata.frequency)
queue.append(snddata._bufid)
al.source_queue_buffers(source._ssid, queue)
def run():
if len (sys.argv) < 2:
print ("Usage: %s wavefile" % os.path.basename(sys.argv[0]))
print (" Using an example wav file...")
wavefp = wave.open(RESOURCES.get("hey.wav"))
else:
wavefp = wave.open(sys.argv[1], "rb")
channels = wavefp.getnchannels()
bitrate = wavefp.getsampwidth() * 8
samplerate = wavefp.getframerate()
wavbuf = wavefp.readframes(wavefp.getnframes())
formatmap = {
(1, 8) : al.AL_FORMAT_MONO8,
(2, 8) : al.AL_FORMAT_STEREO8,
(1, 16): al.AL_FORMAT_MONO16,
(2, 16) : al.AL_FORMAT_STEREO16,
}
alformat = formatmap[(channels, bitrate)]
device = alc.open_device()
context = alc.create_context(device)
alc.make_context_current(context)
sources = al.gen_sources(1)
al.source_f(sources[0], al.AL_PITCH, 1)
al.source_f(sources[0], al.AL_GAIN, 1)
al.source_3f(sources[0], al.AL_POSITION, 0, 0, 0)
al.source_3f(sources[0], al.AL_VELOCITY, 0, 0, 0)
buffers = al.gen_buffers(1)
al.buffer_data(buffers[0], alformat, wavbuf, samplerate)
al.source_queue_buffers(sources[0], buffers)
al.source_play(sources[0])
state = al.get_source_i(sources[0], al.AL_SOURCE_STATE)
while state == al.AL_PLAYING:
print("playing the file...")
time.sleep(1)
state = al.get_source_i(sources[0], al.AL_SOURCE_STATE)
print("done")
al.delete_sources(sources)
al.delete_buffers(buffers)
alc.destroy_context(context)
alc.close_device(device)