Hi again,
I forgot a couple of details:
-> MPLAYER_AO_DEV = 'alsa' (I guess you knew that)
-> If the sound is lagged, try adding srate=48000 at the end of
/etc/mplayer/mplayer.conf
--
Cyril
Cyril wrote:
>Hi all,
>
>I've been having a few problems with my new onboard soundcard (sis7012),
>because it has no hardware volume control available. As a consequence of
>this, the only way to set the volume in freevo (or anything else) is to
>use alsa's plugin dmix.
>The way ossmixer was made couldn't work with my setup, so as a result of
>my frustration, I edited the ossmixer.py plugin to make it use amixer to
>set the volume.
>Then, as it doesn't qualify as 'oss'mixer anymore, I changed its name
>and cleaned up the code a bit.
>
>I don't know if there's a library to control alsa devices with python,
>so I only used os.system('amixer ...') calls to set the volume, but it
>seems to work really well (even to control different channels apprently).
>
>Maybe this plugin could find its place in the default plugins, i think
>it can be useful for someone :)
>
>alsamixer.py is included, so ... do whatever you want with it :)
>
>
>And congratulations to everyone in the dev team, great work!
>
>--
>Cyril
>
>
>
>------------------------------------------------------------------------
>
># -*- coding: iso-8859-1 -*-
># -----------------------------------------------------------------------
># alsamixer.py - The ALSA mixer interface for freevo.
># -----------------------------------------------------------------------
>#
># Note : Based on ossmixer.py, Rev 1.8.2.2 2005/01/20 16:32:11
>#
># To activate:
>#
># plugin.remove('mixer')
># plugin.remove('ossmixer')
># plugin.activate('alsamixer')
>#
>#
># Todo:
>#
># -----------------------------------------------------------------------
># $Log$
>#
># -----------------------------------------------------------------------
># Freevo - A Home Theater PC framework
># Copyright (C) 2002 Krister Lagerstrom, et al.
># Please see the file freevo/Docs/CREDITS for a complete list of authors.
>#
># This program is free software; you can redistribute it and/or modify
># it under the terms of the GNU General Public License as published by
># the Free Software Foundation; either version 2 of the License, or
># (at your option) any later version.
>#
># This program is distributed in the hope that it will be useful, but
># WITHOUT ANY WARRANTY; without even the implied warranty of MER-
># CHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
># Public License for more details.
>#
># You should have received a copy of the GNU General Public License along
># with this program; if not, write to the Free Software Foundation, Inc.,
># 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
>#
># ----------------------------------------------------------------------- */
>
>
>"""For manipulating the mixer.
>"""
>
>import struct
>import os
>
>import config
>import plugin
>import rc
>from event import *
>
>import ossaudiodev
>
>
>class PluginInterface(plugin.DaemonPlugin):
> SOUND_MIXER_LINE = 7
> SOUND_MASK_LINE = 64
>
> def __init__(self):
> self.plugin_name = 'ALSAMIXER'
> self.mixfd = None
> self.muted = 0
>
> # init here
> plugin.DaemonPlugin.__init__(self)
>
> if 0:
> self.mainVolume = 0
> self.pcmVolume = 0
> self.lineinVolume = 0
> self.micVolume = 0
> self.igainVolume = 0
> self.ogainVolume = 0
>
> if config.MAJOR_AUDIO_CTRL == 'VOL':
> self.setMainVolume(config.DEFAULT_VOLUME)
> if config.CONTROL_ALL_AUDIO:
> self.setPcmVolume(config.MAX_VOLUME)
> self.setOgainVolume(config.MAX_VOLUME)
>
> elif config.MAJOR_AUDIO_CTRL == 'PCM':
> self.setPcmVolume(config.DEFAULT_VOLUME)
> if config.CONTROL_ALL_AUDIO:
> self.setMainVolume(config.MAX_VOLUME)
> self.setOgainVolume(config.MAX_VOLUME)
> else:
> _debug_("No appropriate audio channel found for mixer")
>
>
> if config.CONTROL_ALL_AUDIO:
> self.setLineinVolume(0)
> self.setMicVolume(0)
>
>
> def eventhandler(self, event = None, menuw=None, arg=None):
> """
> eventhandler to handle the VOL events
> """
> # Handle volume control
> if event == MIXER_VOLUP:
> if config.MAJOR_AUDIO_CTRL == 'VOL':
> self.incMainVolume()
> rc.post_event(Event(OSD_MESSAGE, arg=_('Volume: %s%%') %
> self.getVolume()))
>
> elif config.MAJOR_AUDIO_CTRL == 'PCM':
> self.incPcmVolume()
> rc.post_event(Event(OSD_MESSAGE, arg=_('Volume: %s%%') %
> self.getVolume()))
>
> return True
>
> elif event == MIXER_VOLDOWN:
> if config.MAJOR_AUDIO_CTRL == 'VOL':
> self.decMainVolume()
> rc.post_event(Event(OSD_MESSAGE, arg=_('Volume: %s%%') %
> self.getVolume()))
>
> elif config.MAJOR_AUDIO_CTRL == 'PCM':
> self.decPcmVolume()
> rc.post_event(Event(OSD_MESSAGE, arg=_('Volume: %s%%') %
> self.getVolume()))
>
> return True
>
> elif event == MIXER_MUTE:
> if self.getMuted() == 1:
> rc.post_event(Event(OSD_MESSAGE, arg=_('Volume: %s%%') %
> self.getVolume()))
> self.setMuted(0)
>
> else:
> rc.post_event(Event(OSD_MESSAGE, arg=_('Mute')))
> self.setMuted(1)
>
> return True
>
> return False
>
>
>
> def _setVolume(self, channel, volume):
> import os
> vol = volume*2.56
> os.system('amixer sset '+channel+' '+str(vol))
>
> def getMuted(self):
> return(self.muted)
>
> def setMuted(self, mute):
> import os
> self.muted = mute
>
> if mute == 1:
> os.system('amixer sset Master mute')
> os.system('amixer sset PCM mute')
> else:
> os.system('amixer sset Master umute')
> os.system('amixer sset PCM unmute')
>
>
> def getVolume(self):
> if config.MAJOR_AUDIO_CTRL == 'VOL':
> return self.mainVolume
> elif config.MAJOR_AUDIO_CTRL == 'PCM':
> return self.pcmVolume
>
> def getMainVolume(self):
> return self.mainVolume
>
> def setMainVolume(self, volume):
> self.mainVolume = volume
> self._setVolume('Master', self.mainVolume)
>
> def incMainVolume(self):
> self.mainVolume += 5
> if self.mainVolume > 100:
> self.mainVolume = 100
> self._setVolume('Master', self.mainVolume)
>
> def decMainVolume(self):
> self.mainVolume -= 5
> if self.mainVolume < 0:
> self.mainVolume = 0
> self._setVolume('Master', self.mainVolume)
>
> def getPcmVolume(self):
> return self.pcmVolume
>
> def setPcmVolume(self, volume):
> self.pcmVolume = volume
> self._setVolume('PCM', volume)
>
> def incPcmVolume(self):
> self.pcmVolume += 5
> if self.pcmVolume > 100:
> self.pcmVolume = 100
> self._setVolume('PCM', self.pcmVolume )
>
> def decPcmVolume(self):
> self.pcmVolume -= 5
> if self.pcmVolume < 0:
> self.pcmVolume = 0
> self._setVolume('PCM', self.pcmVolume )
>
> def setLineinVolume(self, volume):
> if config.CONTROL_ALL_AUDIO:
> self.lineinVolume = volume
> self._setVolume('Line', volume)
>
> def getLineinVolume(self):
> return self.lineinVolume
>
> def setMicVolume(self, volume):
> if config.CONTROL_ALL_AUDIO:
> self.micVolume = volume
> self._setVolume('Mic', volume)
>
> def setIgainVolume(self, volume):
> print "Not Implemented"
> #if config.CONTROL_ALL_AUDIO:
> # if volume > 100:
> # volume = 100
> # elif volume < 0:
> # volume = 0
> # self._setVolume(ossaudiodev.SOUND_MIXER_IGAIN, volume)
>
> def getIgainVolume(self):
> print "Not Implemented"
> #return self.igainVolume
>
> def decIgainVolume(self):
> print "Not Implemented"
> #self.igainVolume -= 5
> #if self.igainVolume < 0:
> # self.igainVolume = 0
> #self._setVolume(ossaudiodev.SOUND_MIXER_IGAIN, volume)
>
> def incIgainVolume(self):
> print "Not Implemented"
> #self.igainVolume += 5
> #if self.igainVolume > 100:
> # self.igainVolume = 100
> #self._setVolume(ossaudiodev.SOUND_MIXER_IGAIN, volume)
>
> def setOgainVolume(self, volume):
> print "Not Implemented"
> #if volume > 100:
> # volume = 100
> #elif volume < 0:
> # volume = 0
> #self.ogainVolume = volume
> #self._setVolume(ossaudiodev.SOUND_MIXER_IGAIN, volume)
>
> def reset(self):
> if config.CONTROL_ALL_AUDIO:
> self.setLineinVolume(0)
> self.setMicVolume(0)
> if config.MAJOR_AUDIO_CTRL == 'VOL':
> self.setPcmVolume(config.MAX_VOLUME)
> elif config.MAJOR_AUDIO_CTRL == 'PCM':
> self.setMainVolume(config.MAX_VOLUME)
>
> #self.setIgainVolume(0) # SB Live input from TV Card.
>
>
>
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