diff options
Diffstat (limited to 'src/mixer/PulseMixerPlugin.cxx')
| -rw-r--r-- | src/mixer/PulseMixerPlugin.cxx | 227 |
1 files changed, 0 insertions, 227 deletions
diff --git a/src/mixer/PulseMixerPlugin.cxx b/src/mixer/PulseMixerPlugin.cxx deleted file mode 100644 index ff10256cb..000000000 --- a/src/mixer/PulseMixerPlugin.cxx +++ /dev/null @@ -1,227 +0,0 @@ -/* - * Copyright (C) 2003-2013 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 "PulseMixerPlugin.hxx" -#include "MixerInternal.hxx" -#include "output/PulseOutputPlugin.hxx" -#include "GlobalEvents.hxx" -#include "util/Error.hxx" -#include "util/Domain.hxx" -#include "Log.hxx" - -#include <pulse/thread-mainloop.h> -#include <pulse/context.h> -#include <pulse/introspect.h> -#include <pulse/stream.h> -#include <pulse/subscribe.h> -#include <pulse/error.h> - -#include <assert.h> -#include <string.h> - -struct PulseMixer final : public Mixer { - PulseOutput *output; - - bool online; - struct pa_cvolume volume; - - PulseMixer(PulseOutput *_output) - :Mixer(pulse_mixer_plugin), - output(_output), online(false) - { - } -}; - -static constexpr Domain pulse_mixer_domain("pulse_mixer"); - -static void -pulse_mixer_offline(PulseMixer *pm) -{ - if (!pm->online) - return; - - pm->online = false; - - GlobalEvents::Emit(GlobalEvents::MIXER); -} - -/** - * Callback invoked by pulse_mixer_update(). Receives the new mixer - * value. - */ -static void -pulse_mixer_volume_cb(gcc_unused pa_context *context, const pa_sink_input_info *i, - int eol, void *userdata) -{ - PulseMixer *pm = (PulseMixer *)userdata; - - if (eol) - return; - - if (i == nullptr) { - pulse_mixer_offline(pm); - return; - } - - pm->online = true; - pm->volume = i->volume; - - GlobalEvents::Emit(GlobalEvents::MIXER); -} - -static void -pulse_mixer_update(PulseMixer *pm, - struct pa_context *context, struct pa_stream *stream) -{ - pa_operation *o; - - assert(context != nullptr); - assert(stream != nullptr); - assert(pa_stream_get_state(stream) == PA_STREAM_READY); - - o = pa_context_get_sink_input_info(context, - pa_stream_get_index(stream), - pulse_mixer_volume_cb, pm); - if (o == nullptr) { - FormatError(pulse_mixer_domain, - "pa_context_get_sink_input_info() failed: %s", - pa_strerror(pa_context_errno(context))); - pulse_mixer_offline(pm); - return; - } - - pa_operation_unref(o); -} - -void -pulse_mixer_on_connect(gcc_unused PulseMixer *pm, - struct pa_context *context) -{ - pa_operation *o; - - assert(context != nullptr); - - o = pa_context_subscribe(context, - (pa_subscription_mask_t)PA_SUBSCRIPTION_MASK_SINK_INPUT, - nullptr, nullptr); - if (o == nullptr) { - FormatError(pulse_mixer_domain, - "pa_context_subscribe() failed: %s", - pa_strerror(pa_context_errno(context))); - return; - } - - pa_operation_unref(o); -} - -void -pulse_mixer_on_disconnect(PulseMixer *pm) -{ - pulse_mixer_offline(pm); -} - -void -pulse_mixer_on_change(PulseMixer *pm, - struct pa_context *context, struct pa_stream *stream) -{ - pulse_mixer_update(pm, context, stream); -} - -static Mixer * -pulse_mixer_init(void *ao, gcc_unused const config_param ¶m, - Error &error) -{ - PulseOutput *po = (PulseOutput *)ao; - - if (ao == nullptr) { - error.Set(pulse_mixer_domain, - "The pulse mixer cannot work without the audio output"); - return nullptr; - } - - PulseMixer *pm = new PulseMixer(po); - - pulse_output_set_mixer(po, pm); - - return pm; -} - -static void -pulse_mixer_finish(Mixer *data) -{ - PulseMixer *pm = (PulseMixer *) data; - - pulse_output_clear_mixer(pm->output, pm); - - delete pm; -} - -static int -pulse_mixer_get_volume(Mixer *mixer, gcc_unused Error &error) -{ - PulseMixer *pm = (PulseMixer *) mixer; - int ret; - - pulse_output_lock(pm->output); - - ret = pm->online - ? (int)((100*(pa_cvolume_avg(&pm->volume)+1))/PA_VOLUME_NORM) - : -1; - - pulse_output_unlock(pm->output); - - return ret; -} - -static bool -pulse_mixer_set_volume(Mixer *mixer, unsigned volume, Error &error) -{ - PulseMixer *pm = (PulseMixer *) mixer; - struct pa_cvolume cvolume; - bool success; - - pulse_output_lock(pm->output); - - if (!pm->online) { - pulse_output_unlock(pm->output); - error.Set(pulse_mixer_domain, "disconnected"); - return false; - } - - pa_cvolume_set(&cvolume, pm->volume.channels, - (pa_volume_t)volume * PA_VOLUME_NORM / 100 + 0.5); - success = pulse_output_set_volume(pm->output, &cvolume, error); - if (success) - pm->volume = cvolume; - - pulse_output_unlock(pm->output); - - return success; -} - -const struct mixer_plugin pulse_mixer_plugin = { - pulse_mixer_init, - pulse_mixer_finish, - nullptr, - nullptr, - pulse_mixer_get_volume, - pulse_mixer_set_volume, - false, -}; |