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)
def process_source(self, source): """Processes a SoundSource. Note: this does NOT activate the SoundSink. If another SoundSink is active, chances are good that the source is processed in that SoundSink. """ ssid = source._ssid if ssid is None: ssid = self._create_source(source) # TODO: this should be only set on changes. # al.source_f(ssid, al.AL_GAIN, source.gain) # al.source_f(ssid, al.AL_PITCH, source.pitch) # al.source_fv(ssid, al.AL_POSITION, source.position) # al.source_fv(ssid, al.AL_VELOCITY, source.velocity) self._create_buffers(source) querystate = al.get_source_i(ssid, al.AL_SOURCE_STATE) if source.request == SOURCE_NONE: # if no change is to be made, nothing will be done. pass elif source.request == SOURCE_REWIND: al.source_rewind(ssid) source.request = SOURCE_NONE elif source.request == SOURCE_PLAY: if querystate != al.AL_PLAYING: al.source_play(ssid) source.request = SOURCE_NONE elif source.request == SOURCE_STOP: if querystate != al.AL_STOPPED: al.source_stop(ssid) source.request = SOURCE_NONE elif source.request == SOURCE_PAUSE: if querystate != al.AL_PAUSED: al.source_pause(ssid) source.request = SOURCE_NONE else: raise ValueError("invalid request state on source")