From f628ef951d7775e680426da286c51be6a6933a14 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Tue, 7 Mar 2017 18:30:13 +0100 Subject: alsa: use default card by default and add support for lookup by cardname MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- src/plugins/alsa.py | 39 +++++++++++++++++++++++++++++++-------- 1 file changed, 31 insertions(+), 8 deletions(-) diff --git a/src/plugins/alsa.py b/src/plugins/alsa.py index 56a5547..68d47bf 100644 --- a/src/plugins/alsa.py +++ b/src/plugins/alsa.py @@ -25,7 +25,9 @@ class ALSA: ALSA volume controller @variable cardindex:int The index of the audio card - @variable cardname:str The name of the audio card + @variable cardname:str The name of the audio card, will be + 'default' if the default audio card is selected + using it's logical name or logical index @variable mixername:str The name of the mixer @variable mixer:alsaaudio.Mixer The mixer object used internally by this class ''' @@ -35,19 +37,32 @@ class ALSA: ''' :int Channel index that selects all available channels ''' + + DEFAULT_CARD = -1 + ''' + :int Logical index of the default audio card + ''' - def __init__(self, cardindex = 0, mixername = 'Master'): + def __init__(self, card = -1, mixername = 'Master', *, **kwargs): ''' Constructor - @param cardindex:int The index of the audio card + @param card:int|str The index or name of the audio card, + `ALSA.DEFAULT_CARD` (-1) or 'default' for the default card @param mixername:str The name of the mixer ''' - self.cardindex = cardindex - self.cardname = alsaaudio.cards()[cardindex] + if card == -1 and 'cardindex' in kwargs: # For backwards compatibility + card = kwargs['cardindex'] + if isinstance(card, str): + if card == 'default': + card = -1 + else: + card = alsaaudio.cards().index(card) + self.card = card self.mixername = mixername - self.mixer = alsaaudio.Mixer(self.mixername, 0, self.cardindex) + self.mixer = alsaaudio.Mixer(self.mixername, 0, self.card) + self.cardname = mixer.cardname def get_volume(self): @@ -116,12 +131,20 @@ class ALSA: @staticmethod - def get_mixers(cardindex = 0): + def get_mixers(card = -1, *, **kwargs): ''' Get the names of all available mixers for an audio card - @param cardindex:int The index of the audio card + @param card:int|str The index or name of the audio card, + `ALSA.DEFAULT_CARD` (-1) or 'default' for the default card @return :list The names of all available mixers for an audio card ''' + if card == -1 and 'cardindex' in kwargs: # For backwards compatibility + card = kwargs['cardindex'] + if isinstance(card, str): + if card == 'default': + card = -1 + else: + card = alsaaudio.cards().index(card) return alsaaudio.mixers(cardindex) -- cgit v1.2.3-70-g09d2