diff options
Diffstat (limited to '')
-rw-r--r-- | src/mixer/MixerAll.cxx | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/mixer/MixerAll.cxx b/src/mixer/MixerAll.cxx new file mode 100644 index 000000000..5fef6a92f --- /dev/null +++ b/src/mixer/MixerAll.cxx @@ -0,0 +1,155 @@ +/* + * Copyright (C) 2003-2014 The Music Player Daemon Project + * http://www.musicpd.org + * + * 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 + * MERCHANTABILITY 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "config.h" +#include "output/MultipleOutputs.hxx" +#include "MixerControl.hxx" +#include "MixerInternal.hxx" +#include "MixerList.hxx" +#include "output/Internal.hxx" +#include "pcm/Volume.hxx" +#include "util/Error.hxx" +#include "util/Domain.hxx" +#include "Log.hxx" + +#include <assert.h> + +static constexpr Domain mixer_domain("mixer"); + +static int +output_mixer_get_volume(const AudioOutput &ao) +{ + if (!ao.enabled) + return -1; + + Mixer *mixer = ao.mixer; + if (mixer == nullptr) + return -1; + + Error error; + int volume = mixer_get_volume(mixer, error); + if (volume < 0 && error.IsDefined()) + FormatError(error, + "Failed to read mixer for '%s'", + ao.name); + + return volume; +} + +int +MultipleOutputs::GetVolume() const +{ + unsigned ok = 0; + int total = 0; + + for (auto ao : outputs) { + int volume = output_mixer_get_volume(*ao); + if (volume >= 0) { + total += volume; + ++ok; + } + } + + if (ok == 0) + return -1; + + return total / ok; +} + +static bool +output_mixer_set_volume(AudioOutput &ao, unsigned volume) +{ + assert(volume <= 100); + + if (!ao.enabled) + return false; + + Mixer *mixer = ao.mixer; + if (mixer == nullptr) + return false; + + Error error; + bool success = mixer_set_volume(mixer, volume, error); + if (!success && error.IsDefined()) + FormatError(error, + "Failed to set mixer for '%s'", + ao.name); + + return success; +} + +bool +MultipleOutputs::SetVolume(unsigned volume) +{ + assert(volume <= 100); + + bool success = false; + for (auto ao : outputs) + success = output_mixer_set_volume(*ao, volume) + || success; + + return success; +} + +static int +output_mixer_get_software_volume(const AudioOutput &ao) +{ + if (!ao.enabled) + return -1; + + Mixer *mixer = ao.mixer; + if (mixer == nullptr || !mixer->IsPlugin(software_mixer_plugin)) + return -1; + + return mixer_get_volume(mixer, IgnoreError()); +} + +int +MultipleOutputs::GetSoftwareVolume() const +{ + unsigned ok = 0; + int total = 0; + + for (auto ao : outputs) { + int volume = output_mixer_get_software_volume(*ao); + if (volume >= 0) { + total += volume; + ++ok; + } + } + + if (ok == 0) + return -1; + + return total / ok; +} + +void +MultipleOutputs::SetSoftwareVolume(unsigned volume) +{ + assert(volume <= PCM_VOLUME_1); + + for (auto ao : outputs) { + const auto mixer = ao->mixer; + + if (mixer != nullptr && + &mixer->plugin == &software_mixer_plugin) + mixer_set_volume(mixer, volume, IgnoreError()); + } +} |