Exemple #1
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    def set_volume(self, volume):
        """
        Set volume level of the installed mixer.

        :param volume: the volume in the range [0..100]
        :type volume: int
        :rtype: :class:`True` if successful, else :class:`False`
        """
        if self._software_mixing:
            self._playbin.set_property('volume', volume / 100.0)
            return True

        if self._mixer is None:
            return False

        old_scale = (0, 100)
        new_scale = (self._mixer_track.min_volume,
                     self._mixer_track.max_volume)

        volume = utils.rescale(volume, old=old_scale, new=new_scale)

        volumes = (volume, ) * self._mixer_track.num_channels
        self._mixer.set_volume(self._mixer_track, volumes)

        return self._mixer.get_volume(self._mixer_track) == volumes
Exemple #2
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    def get_volume(self):
        """
        Get volume level of the installed mixer.

        Example values:

        0:
            Muted.
        100:
            Max volume for given system.
        :class:`None`:
            No mixer present, so the volume is unknown.

        :rtype: int in range [0..100] or :class:`None`
        """
        if self._software_mixing:
            return round(self._playbin.get_property('volume') * 100)

        if self._mixer is None:
            return None

        volumes = self._mixer.get_volume(self._mixer_track)
        avg_volume = float(sum(volumes)) / len(volumes)

        new_scale = (0, 100)
        old_scale = (self._mixer_track.min_volume, self._mixer_track.max_volume)
        return utils.rescale(avg_volume, old=old_scale, new=new_scale)
Exemple #3
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    def get_volume(self):
        """
        Get volume level of the installed mixer.

        Example values:

        0:
            Muted.
        100:
            Max volume for given system.
        :class:`None`:
            No mixer present, so the volume is unknown.

        :rtype: int in range [0..100] or :class:`None`
        """
        if self._software_mixing:
            return round(self._playbin.get_property('volume') * 100)

        if self._mixer is None:
            return None

        volumes = self._mixer.get_volume(self._mixer_track)
        avg_volume = float(sum(volumes)) / len(volumes)

        new_scale = (0, 100)
        old_scale = (self._mixer_track.min_volume,
                     self._mixer_track.max_volume)
        return utils.rescale(avg_volume, old=old_scale, new=new_scale)
Exemple #4
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    def set_volume(self, volume):
        """
        Set volume level of the installed mixer.

        :param volume: the volume in the range [0..100]
        :type volume: int
        :rtype: :class:`True` if successful, else :class:`False`
        """
        if self._software_mixing:
            self._playbin.set_property('volume', volume / 100.0)
            return True

        if self._mixer is None:
            return False

        old_scale = (0, 100)
        new_scale = (self._mixer_track.min_volume, self._mixer_track.max_volume)

        volume = utils.rescale(volume, old=old_scale, new=new_scale)

        volumes = (volume,) * self._mixer_track.num_channels
        self._mixer.set_volume(self._mixer_track, volumes)

        return self._mixer.get_volume(self._mixer_track) == volumes