Integration
/* $Id$ */
/* Copyright (c) 2013-2020 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Desktop Integration */
/* 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, version 3 of the License.
*
* 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, see <http://www.gnu.org/licenses/>. */
/* TODO:
* - optionally loop the audio sample until told to stop
* - implement setting the volume (for headset/loudspeaker/audio...) */
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <libintl.h>
#include <gtk/gtk.h>
#include <pulse/pulseaudio.h>
#include <System.h>
#include <Desktop/Phone.h>
#define max(a, b) ((a) > (b) ? (a) : (b))
#ifndef PACKAGE
# define PACKAGE "Phone"
#endif
/* Pulseaudio */
/* private */
/* types */
typedef struct _PhonePlugin
{
PhonePluginHelper * helper;
guint source;
pa_threaded_mainloop * pam;
pa_context * pac;
pa_operation * pao;
} Pulseaudio;
/* prototypes */
/* plug-in */
static Pulseaudio * _pa_init(PhonePluginHelper * helper);
static void _pa_destroy(Pulseaudio * pa);
static int _pa_event(Pulseaudio * pa, PhoneEvent * event);
/* useful */
static void _pa_play(Pulseaudio * pa, char const * sound);
/* public */
/* variables */
PhonePluginDefinition plugin =
{
"Pulseaudio",
"audio-x-generic",
NULL,
_pa_init,
_pa_destroy,
_pa_event,
NULL
};
/* private */
/* functions */
/* pa_init */
static Pulseaudio * _pa_init(PhonePluginHelper * helper)
{
Pulseaudio * pa;
pa_mainloop_api * mapi = NULL;
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
if((pa = object_new(sizeof(*pa))) == NULL)
return NULL;
pa->helper = helper;
pa->source = 0;
pa->pam = pa_threaded_mainloop_new();
pa->pac = NULL;
pa->pao = NULL;
if(pa->pam == NULL)
{
_pa_destroy(pa);
error_set_code(1, "%s", "Could not initialize PulseAudio");
return NULL;
}
mapi = pa_threaded_mainloop_get_api(pa->pam);
/* XXX update the context name */
if((pa->pac = pa_context_new(mapi, PACKAGE)) == NULL)
{
_pa_destroy(pa);
error_set_code(1, "%s", "Could not initialize PulseAudio");
return NULL;
}
pa_context_connect(pa->pac, NULL, 0, NULL);
pa_threaded_mainloop_start(pa->pam);
return pa;
}
/* pa_destroy */
static void _pa_destroy(Pulseaudio * pa)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s()\n", __func__);
#endif
if(pa->source != 0)
g_source_remove(pa->source);
if(pa->pao != NULL)
pa_operation_cancel(pa->pao);
if(pa->pac != NULL)
pa_context_unref(pa->pac);
pa_threaded_mainloop_free(pa->pam);
object_delete(pa);
}
/* pa_event */
static int _pa_event(Pulseaudio * pa, PhoneEvent * event)
{
switch(event->type)
{
case PHONE_EVENT_TYPE_AUDIO_PLAY:
_pa_play(pa, event->audio_play.sample);
break;
case PHONE_EVENT_TYPE_AUDIO_STOP:
_pa_play(pa, NULL);
break;
default: /* not relevant */
break;
}
return 0;
}
/* pa_play */
static void _pa_play(Pulseaudio * pa, char const * sample)
{
#ifdef DEBUG
fprintf(stderr, "DEBUG: %s(\"%s\")\n", __func__, sample);
#endif
if(sample == NULL)
{
/* cancel the current sample */
if(pa->pao != NULL)
pa_operation_cancel(pa->pao);
pa->pao = NULL;
}
else if(pa->pao == NULL)
/* FIXME apply the proper volume */
pa->pao = pa_context_play_sample(pa->pac, sample, NULL,
PA_VOLUME_NORM, NULL, NULL);
}