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108 lines
3.2 KiB
C++
108 lines
3.2 KiB
C++
/*
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* Copyright (C) 2004-2012 Savoir-Faire Linux Inc.
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* Author: Emmanuel Milou <emmanuel.milou@savoirfairelinux.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Additional permission under GNU GPL version 3 section 7:
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*
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* If you modify this program, or any covered work, by linking or
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* combining it with the OpenSSL project's OpenSSL library (or a
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* modified version of that library), containing parts covered by the
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* terms of the OpenSSL or SSLeay licenses, Savoir-Faire Linux Inc.
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* grants you additional permission to convey the resulting work.
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* Corresponding Source for a non-source form of such a combination
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* shall include the source code for the parts of OpenSSL used as well
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* as that of the covered work.
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*/
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#ifndef _AUDIO_STREAM_H
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#define _AUDIO_STREAM_H
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#include <pulse/pulseaudio.h>
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#include <string>
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#include "noncopyable.h"
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#include "pulselayer.h"
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/**
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* This data structure contains the different king of audio streams available
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*/
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enum STREAM_TYPE {
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PLAYBACK_STREAM, CAPTURE_STREAM, RINGTONE_STREAM
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};
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class AudioStream {
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public:
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/**
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* Constructor
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*
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* @param context pulseaudio's application context.
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* @param mainloop pulseaudio's main loop
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* @param description
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* @param types
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* @param audio sampling rate
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* @param pointer to pa_source_info or pa_sink_info (depending on type).
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*
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* //@param channel number
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* //@param device name
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*/
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AudioStream(pa_context *, pa_threaded_mainloop *, const char *, int, unsigned, const PaDeviceInfos*);
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~AudioStream();
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/**
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* Accessor: Get the pulseaudio stream object
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* @return pa_stream* The stream
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*/
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pa_stream* pulseStream() {
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return audiostream_;
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}
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const pa_sample_spec *sampleSpec() {
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return pa_stream_get_sample_spec(audiostream_);
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}
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inline size_t sampleSize() {
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return pa_sample_size(sampleSpec());
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}
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inline uint8_t channels() {
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return sampleSpec()->channels;
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}
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bool isReady();
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private:
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NON_COPYABLE(AudioStream);
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/**
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* Mandatory asynchronous callback on the audio stream state
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*/
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static void stream_state_callback(pa_stream* s, void* user_data);
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/**
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* The pulse audio object
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*/
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pa_stream* audiostream_;
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/**
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* A pointer to the opaque threaded main loop object
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*/
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pa_threaded_mainloop * mainloop_;
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};
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#endif // _AUDIO_STREAM_H
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