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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* audiobackend-pulse.cc
*
* Wed Sep 24 07:47:47 CEST 2014
* Copyright 2014 Bent Bisballe Nyeng
* deva@aasimon.org
****************************************************************************/
/*
* This file is part of SimpleRTP.
*
* SimpleRTP 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.
*
* SimpleRTP 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 SimpleRTP; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include "audiobackend-pulse.h"
#include "mediaconfig.h"
#include "stdio.h"
#ifdef WITH_PULSE
#include <pulse/simple.h>
#include <pulse/error.h>
/*
Input example:
http://freedesktop.org/software/pulseaudio/doxygen/pacat-simple_8c-example.html
Output example:
http://freedesktop.org/software/pulseaudio/doxygen/parec-simple_8c-example.html
*/
AudioBackendPulse::AudioBackendPulse(const char *device)
{
// Initialize PulseAudio
static const pa_sample_spec ss = {
.format = PA_SAMPLE_S16LE,
.rate = SAMPLERATE,
.channels = 1
};
int error;
if (!(sIn = pa_simple_new(NULL, "Anything", PA_STREAM_RECORD, NULL, "record", &ss, NULL, NULL, &error))) {
fprintf(stderr, __FILE__": pa_simple_new() failed: %s\n", pa_strerror(error));
}
if (!(sOut = pa_simple_new(NULL, "Anything", PA_STREAM_PLAYBACK, NULL, "playback", &ss, NULL, NULL, &error))) {
fprintf(stderr, __FILE__": pa_simple_new() failed: %s\n", pa_strerror(error));
}
}
AudioBackendPulse::~AudioBackendPulse()
{
// Freeeeedoooooom! Set the PulseAudio instances free again, we're done
pa_simple_free(sIn);
pa_simple_free(sOut);
}
int AudioBackendPulse::read(char *pcm, size_t maxsize)
{
int error;
if (pa_simple_read(sIn, pcm, maxsize, &error) < 0) {
fprintf(stderr, __FILE__": pa_simple_read() failed: %s\n",
pa_strerror(error));
}
return maxsize;
}
int AudioBackendPulse::write(const char *pcm, size_t size)
{
int error;
if (pa_simple_write(sOut, pcm, size, &error) < 0) {
fprintf(stderr, __FILE__": pa_simple_write() failed: %s\n",
pa_strerror(error));
}
/*
if(pa_simple_drain(sOut, &error) < 0) {
fprintf(stderr, __FILE__": pa_simple_drain() failed: %s\n",
pa_strerror(error));
}
*/
return 0;
}
#endif/*WITH_PULSE*/
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