Python audioop.mul方法代码示例

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import mul [as 别名]
def test_issue7673(self):
        state = None
        for data, size in INVALID_DATA:
            size2 = size
            self.assertRaises(audioop.error, audioop.getsample, data, size, 0)
            self.assertRaises(audioop.error, audioop.max, data, size)
            self.assertRaises(audioop.error, audioop.minmax, data, size)
            self.assertRaises(audioop.error, audioop.avg, data, size)
            self.assertRaises(audioop.error, audioop.rms, data, size)
            self.assertRaises(audioop.error, audioop.avgpp, data, size)
            self.assertRaises(audioop.error, audioop.maxpp, data, size)
            self.assertRaises(audioop.error, audioop.cross, data, size)
            self.assertRaises(audioop.error, audioop.mul, data, size, 1.0)
            self.assertRaises(audioop.error, audioop.tomono, data, size, 0.5, 0.5)
            self.assertRaises(audioop.error, audioop.tostereo, data, size, 0.5, 0.5)
            self.assertRaises(audioop.error, audioop.add, data, data, size)
            self.assertRaises(audioop.error, audioop.bias, data, size, 0)
            self.assertRaises(audioop.error, audioop.reverse, data, size)
            self.assertRaises(audioop.error, audioop.lin2lin, data, size, size2)
            self.assertRaises(audioop.error, audioop.ratecv, data, size, 1, 1, 1, state)
            self.assertRaises(audioop.error, audioop.lin2ulaw, data, size)
            self.assertRaises(audioop.error, audioop.lin2alaw, data, size)
            self.assertRaises(audioop.error, audioop.lin2adpcm, data, size, state) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import mul [as 别名]
def test_mul(self):
        for w in 1, 2, 3, 4:
            self.assertEqual(audioop.mul(b'', w, 2), b'')
            self.assertEqual(audioop.mul(bytearray(), w, 2), b'')
            self.assertEqual(audioop.mul(memoryview(b''), w, 2), b'')
            self.assertEqual(audioop.mul(datas[w], w, 0),
                             b'\0' * len(datas[w]))
            self.assertEqual(audioop.mul(datas[w], w, 1),
                             datas[w])
        self.assertEqual(audioop.mul(datas[1], 1, 2),
                         b'\x00\x24\x7f\x80\x7f\x80\xfe')
        self.assertEqual(audioop.mul(datas[2], 2, 2),
                packs[2](0, 0x2468, 0x7fff, -0x8000, 0x7fff, -0x8000, -2))
        self.assertEqual(audioop.mul(datas[3], 3, 2),
                packs[3](0, 0x2468ac, 0x7fffff, -0x800000,
                         0x7fffff, -0x800000, -2))
        self.assertEqual(audioop.mul(datas[4], 4, 2),
                packs[4](0, 0x2468acf0, 0x7fffffff, -0x80000000,
                         0x7fffffff, -0x80000000, -2)) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import mul [as 别名]
def test_string(self):
        data = 'abcd'
        size = 2
        self.assertRaises(TypeError, audioop.getsample, data, size, 0)
        self.assertRaises(TypeError, audioop.max, data, size)
        self.assertRaises(TypeError, audioop.minmax, data, size)
        self.assertRaises(TypeError, audioop.avg, data, size)
        self.assertRaises(TypeError, audioop.rms, data, size)
        self.assertRaises(TypeError, audioop.avgpp, data, size)
        self.assertRaises(TypeError, audioop.maxpp, data, size)
        self.assertRaises(TypeError, audioop.cross, data, size)
        self.assertRaises(TypeError, audioop.mul, data, size, 1.0)
        self.assertRaises(TypeError, audioop.tomono, data, size, 0.5, 0.5)
        self.assertRaises(TypeError, audioop.tostereo, data, size, 0.5, 0.5)
        self.assertRaises(TypeError, audioop.add, data, data, size)
        self.assertRaises(TypeError, audioop.bias, data, size, 0)
        self.assertRaises(TypeError, audioop.reverse, data, size)
        self.assertRaises(TypeError, audioop.lin2lin, data, size, size)
        self.assertRaises(TypeError, audioop.ratecv, data, size, 1, 1, 1, None)
        self.assertRaises(TypeError, audioop.lin2ulaw, data, size)
        self.assertRaises(TypeError, audioop.lin2alaw, data, size)
        self.assertRaises(TypeError, audioop.lin2adpcm, data, size, None) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import mul [as 别名]
def read(self):
        ret = self.original.read()
        return audioop.mul(ret, 2, min(self._volume, 2.0)) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import mul [as 别名]
def test_mul(self):
        for w in 1, 2, 4:
            self.assertEqual(audioop.mul(b'', w, 2), b'')
            self.assertEqual(audioop.mul(datas[w], w, 0),
                             b'\0' * len(datas[w]))
            self.assertEqual(audioop.mul(datas[w], w, 1),
                             datas[w])
        self.assertEqual(audioop.mul(datas[1], 1, 2),
                         b'\x00\x24\x7f\x80\x7f\x80\xfe')
        self.assertEqual(audioop.mul(datas[2], 2, 2),
                packs[2](0, 0x2468, 0x7fff, -0x8000, 0x7fff, -0x8000, -2))
        self.assertEqual(audioop.mul(datas[4], 4, 2),
                packs[4](0, 0x2468acf0, 0x7fffffff, -0x80000000,
                         0x7fffffff, -0x80000000, -2)) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import mul [as 别名]
def run(self):
        self.loops = 0
        self._start = time.time()
        while not self._end.is_set():
            # are we paused?
            if not self._resumed.is_set():
                # wait until we aren't
                self._resumed.wait()

            if not self._connected.is_set():
                self.stop()
                break

            self.loops += 1
            data = self.data.pop(0)

            if self._volume != 1.0:
                data = audioop.mul(data, 2, min(self._volume, 2.0))

            """if len(data) != self.frame_size:
                self.stop()
                break"""

            self.player(data)
            next_time = self._start + self.delay * self.loops
            delay = max(0, self.delay + (next_time - time.time()))
            time.sleep(delay) 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import mul [as 别名]
def get_32bit_frames(self, scale_amplitude: bool = True) -> bytes:
        """Returns the raw sample frames scaled to 32 bits. See make_32bit method for more info."""
        if self.samplewidth == 4:
            return self.__frames
        frames = audioop.lin2lin(self.__frames, self.samplewidth, 4)   # type: bytes
        if not scale_amplitude:
            # we need to scale back the sample amplitude to fit back into 24/16/8 bit range
            factor = 1.0/2**(8*abs(self.samplewidth-4))
            frames = audioop.mul(frames, 4, factor)
        return frames 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import mul [as 别名]
def amplify_max(self) -> 'Sample':
        """Amplify the sample to maximum volume without clipping or overflow happening."""
        if self.__locked:
            raise RuntimeError("cannot modify a locked sample")
        max_amp = audioop.max(self.__frames, self.samplewidth)
        max_target = 2 ** (8 * self.samplewidth - 1) - 2
        if max_amp > 0:
            factor = max_target/max_amp
            self.__frames = audioop.mul(self.__frames, self.samplewidth, factor)
        return self 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import mul [as 别名]
def amplify(self, factor: float) -> 'Sample':
        """Amplifies (multiplies) the sample by the given factor. May cause clipping/overflow if factor is too large."""
        if self.__locked:
            raise RuntimeError("cannot modify a locked sample")
        self.__frames = audioop.mul(self.__frames, self.samplewidth, factor)
        return self 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import mul [as 别名]
def _frame_vol(self, frame, mult, *, maxv=2, use_audioop=True):
        if use_audioop:
            return audioop.mul(frame, 2, min(mult, maxv))
        else:
            # ffmpeg returns s16le pcm frames.
            frame_array = array('h', frame)

            for i in range(len(frame_array)):
                frame_array[i] = int(frame_array[i] * min(mult, min(1, maxv)))

            return frame_array.tobytes() 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import mul [as 别名]
def testmul(data):
    if verbose:
        print 'mul'
    data2 = []
    for d in data:
        str = ''
        for s in d:
            str = str + chr(ord(s)*2)
        data2.append(str)
    if audioop.mul(data[0], 1, 2) != data2[0] or \
              audioop.mul(data[1],2, 2) != data2[1] or \
              audioop.mul(data[2], 4, 2) != data2[2]:
        return 0
    return 1 

# 需要导入模块: import audioop [as 别名]
# 或者: from audioop import mul [as 别名]
def play_audio():
    global_settings.audio_dni = (True, settings.sound_board_metadata[C_PLUGIN_INFO][P_PLUGIN_NAME])
    global_settings.mumble_inst.sound_output.clear_buffer()

    uri = f"file:///{dir_utils.get_perm_med_dir()}/sound_board/{settings.current_track}.wav"
    command = settings.sound_board_metadata[C_PLUGIN_SETTINGS][P_VLC_DIR]

    if global_settings.audio_inst is not None:
        global_settings.audio_inst.terminate()
        global_settings.audio_inst.kill()
        global_settings.audio_inst = None

    settings.is_playing = True
    if global_settings.audio_inst is None:
        use_stereo = global_settings.cfg.getboolean(C_MAIN_SETTINGS, P_AUD_STEREO)
        if use_stereo:
            global_settings.audio_inst = sp.Popen(
                [command, uri] + ['-I', 'dummy', f'{"--quiet" if settings.sound_board_metadata.getboolean(C_PLUGIN_SETTINGS, P_VLC_QUIET, fallback=True) else ""}',
                                  '--one-instance', f'{"--no-repeat" if settings.loop_clip is False else "--repeat"}',
                                  f'--start-time={settings.skip_to if settings.loop_clip is False else 0}',
                                  '--sout',
                                  '#transcode{acodec=s16le, channels=2, samplerate=48000, '
                                  'ab=128, threads=8}:std{access=file, mux=wav, dst=-}',
                                  'vlc://quit'],
                stdout=sp.PIPE, bufsize=1024)
            settings.skip_to = 0
        else:
            global_settings.audio_inst = sp.Popen(
            [command, uri] + ['-I', 'dummy', f'{"--quiet" if settings.sound_board_metadata.getboolean(C_PLUGIN_SETTINGS, P_VLC_QUIET, fallback=True) else ""}',
                              '--one-instance', f'{"--no-repeat" if settings.loop_clip is False else "--repeat"}',
                              f'--start-time={settings.skip_to if settings.loop_clip is False else 0}',
                              '--sout',
                              '#transcode{acodec=s16le, channels=2, samplerate=24000, '
                              'ab=128, threads=8}:std{access=file, mux=wav, dst=-}',
                              'vlc://quit'],
            stdout=sp.PIPE, bufsize=1024)
            settings.skip_to = 0

    runtime_utils.unmute()
    while not settings.exit_flag and global_settings.audio_inst and settings.is_playing:
        while global_settings.mumble_inst.sound_output.get_buffer_size() > 0.5 and not settings.exit_flag:
            time.sleep(0.01)
        if global_settings.audio_inst:
            raw_music = global_settings.audio_inst.stdout.read(1024)
            if raw_music and global_settings.audio_inst:
                global_settings.mumble_inst.sound_output.add_sound(audioop.mul(raw_music, 2, settings.volume))
            else:
                stop_audio()
                settings.is_playing = False
                return
        else:
            return
    return