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144 lines
3.4 KiB
144 lines
3.4 KiB
/* aKode: Pulse-Sink
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Copyright (C) 2004 Allan Sandfeld Jensen <kde@carewolf.com>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "config.h"
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#ifdef HAVE_STDINT_H
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#include <stdint.h>
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#elif defined(HAVE_INTTYPES_H)
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#include <inttypes.h>
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#endif
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#include <pulse/simple.h>
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#include "audioframe.h"
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#include "audiobuffer.h"
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#include "pulse_sink.h"
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#include <iostream>
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namespace aKode {
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extern "C" { PulseSinkPlugin pulse_sink; };
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struct PulseSink::private_data
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{
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private_data() : server(0), error(false) {};
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pa_simple *server;
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pa_sample_spec sample_spec;
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bool error;
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AudioConfiguration config;
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};
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PulseSink::PulseSink()
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{
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m_data = new private_data;
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m_data->sample_spec.rate = 44100;
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m_data->sample_spec.channels = 2;
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m_data->sample_spec.format = PA_SAMPLE_S16NE;
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}
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bool PulseSink::open() {
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int error = 0;
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m_data->server = pa_simple_new(0, "akode-client", PA_STREAM_PLAYBACK, 0, "", &m_data->sample_spec, 0, 0, &error );
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if (!m_data->server || error != 0) {
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m_data->error = true;
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close();
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std::cout << "Cannot open client\n";
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return false;
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}
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return true;
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}
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void PulseSink::close() {
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if (m_data->server) {
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pa_simple_free(m_data->server);
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m_data->server = 0;
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}
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}
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PulseSink::~PulseSink()
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{
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close();
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delete m_data;
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}
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int PulseSink::setAudioConfiguration(const AudioConfiguration* config)
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{
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if (m_data->error) return -1;
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int res = 0;
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if (*config == m_data->config) return 0;
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m_data->config = *config;
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if (config->channel_config != MonoStereo ) return -1;
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m_data->sample_spec.channels = config->channels;
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if (config->sample_width != 16) {
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res = 1;
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m_data->config.sample_width = 16;
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}
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m_data->sample_spec.rate = config->sample_rate;
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// create new connection
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close();
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open();
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return res;
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}
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const AudioConfiguration* PulseSink::audioConfiguration() const
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{
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return &m_data->config;
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}
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bool PulseSink::writeFrame(AudioFrame* frame)
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{
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if ( m_data->error ) return false;
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if ( frame->channels != m_data->config.channels || frame->sample_rate != m_data->config.sample_rate)
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{
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if (setAudioConfiguration(frame)!=0)
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return false;
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}
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int channels = m_data->config.channels;
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int length = frame->length;
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int16_t *buffer = new int16_t[length*channels];
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int16_t** data = (int16_t**)frame->data;
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for(int i = 0; i<length; i++)
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for(int j=0; j<channels; j++)
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buffer[i*channels+j] = data[j][i];
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int error = 0;
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pa_simple_write(m_data->server, buffer, channels*length*2, &error);
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delete[] buffer;
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return (error == 0);
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}
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} // namespace
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