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sdrangel/plugins/samplesource/v4l/v4linput.h
2014-12-03 00:13:18 +00:00

107 lines
3.2 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2012 maintech GmbH, Otto-Hahn-Str. 15, 97204 Hoechberg, Germany //
// written by Christian Daniel //
// //
// 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 as version 3 of the License, or //
// //
// 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 V3 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/>. //
///////////////////////////////////////////////////////////////////////////////////
#ifndef INCLUDE_V4LINPUT_H
#define INCLUDE_V4LINPUT_H
#include "dsp/samplesource/samplesource.h"
#include <QString>
struct v4l_buffer {
void *start;
size_t length;
};
class V4LThread;
class V4LInput : public SampleSource {
public:
struct Settings {
qint32 m_gain;
Settings();
void resetToDefaults();
QByteArray serialize() const;
bool deserialize(const QByteArray& data);
};
class MsgConfigureV4L : public Message {
MESSAGE_CLASS_DECLARATION
public:
const GeneralSettings& getGeneralSettings() const { return m_generalSettings; }
const Settings& getSettings() const { return m_settings; }
static MsgConfigureV4L* create(const GeneralSettings& generalSettings, const Settings& settings)
{
return new MsgConfigureV4L(generalSettings, settings);
}
private:
GeneralSettings m_generalSettings;
Settings m_settings;
MsgConfigureV4L(const GeneralSettings& generalSettings, const Settings& settings) :
Message(),
m_generalSettings(generalSettings),
m_settings(settings)
{ }
};
class MsgReportV4L : public Message {
MESSAGE_CLASS_DECLARATION
public:
const std::vector<int>& getGains() const { return m_gains; }
static MsgReportV4L* create(const std::vector<int>& gains)
{
return new MsgReportV4L(gains);
}
protected:
std::vector<int> m_gains;
MsgReportV4L(const std::vector<int>& gains) :
Message(),
m_gains(gains)
{ }
};
V4LInput(MessageQueue* msgQueueToGUI);
~V4LInput();
bool startInput(int device);
void stopInput();
const QString& getDeviceDescription() const;
int getSampleRate() const;
quint64 getCenterFrequency() const;
bool handleMessage(Message* message);
private:
QMutex m_mutex;
Settings m_settings;
V4LThread* m_V4LThread;
QString m_deviceDescription;
std::vector<int> m_gains;
void applySettings(const GeneralSettings& generalSettings, const Settings& settings, bool force);
};
#endif // INCLUDE_V4L_H