mirror of
https://github.com/qTox/qTox.git
synced 2024-03-22 14:00:36 +08:00
67e9aeec63
The qTox Project is not associated with the Tox Project in any way, with the exception of "qTox" using the Tox Projet's "toxcore" collection of libraries. In particular, the Tox Projet does not own copyright over the qTox Project's "qTox" collection of software, source code, and assets. The qTox Project's assets are under the sole copyright of the qTox contributors, and no partiular rights are granted to the Tox Project.
86 lines
3.1 KiB
C++
86 lines
3.1 KiB
C++
/*
|
|
Copyright © 2015 by The qTox Project
|
|
|
|
This file is part of qTox, a Qt-based graphical interface for Tox.
|
|
|
|
qTox is libre 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 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
qTox 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 qTox. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
|
|
#ifndef CAMERADEVICE_H
|
|
#define CAMERADEVICE_H
|
|
|
|
#include <QHash>
|
|
#include <QString>
|
|
#include <QMutex>
|
|
#include <QVector>
|
|
#include <atomic>
|
|
#include "videomode.h"
|
|
|
|
struct AVFormatContext;
|
|
struct AVInputFormat;
|
|
struct AVDeviceInfoList;
|
|
struct AVDictionary;
|
|
|
|
/// Maintains an FFmpeg context for open camera devices,
|
|
/// takes care of sharing the context accross users
|
|
/// and closing the camera device when not in use.
|
|
/// The device can be opened recursively,
|
|
/// and must then be closed recursively
|
|
class CameraDevice
|
|
{
|
|
public:
|
|
/// Opens a device, creating a new one if needed
|
|
/// Returns a nullptr if the device couldn't be opened
|
|
static CameraDevice* open(QString devName);
|
|
/// Opens a device, creating a new one if needed
|
|
/// If the device is alreay open in another mode, the mode
|
|
/// will be ignored and the existing device is used
|
|
/// If the mode does not exist, a new device can't be opened
|
|
/// Returns a nullptr if the device couldn't be opened
|
|
static CameraDevice* open(QString devName, VideoMode mode);
|
|
void open(); ///< Opens the device again. Never fails
|
|
bool close(); ///< Closes the device. Never fails. If returns true, "this" becomes invalid
|
|
|
|
/// Returns a list of device names and descriptions
|
|
/// The names are the first part of the pair and can be passed to open(QString)
|
|
static QVector<QPair<QString, QString>> getDeviceList();
|
|
|
|
/// Get the list of video modes for a device
|
|
static QVector<VideoMode> getVideoModes(QString devName);
|
|
|
|
/// Returns the short name of the default defice
|
|
/// This is either the device in the settings
|
|
/// or the system default.
|
|
static QString getDefaultDeviceName();
|
|
|
|
private:
|
|
CameraDevice(const QString devName, AVFormatContext *context);
|
|
static CameraDevice* open(QString devName, AVDictionary** options);
|
|
static bool getDefaultInputFormat(); ///< Sets CameraDevice::iformat, returns success/failure
|
|
static QVector<QPair<QString, QString> > getRawDeviceListGeneric(); ///< Uses avdevice_list_devices
|
|
|
|
public:
|
|
const QString devName; ///< Short name of the device
|
|
AVFormatContext* context; ///< Context of the open device, must always be valid
|
|
|
|
private:
|
|
std::atomic_int refcount; ///< Number of times the device was opened
|
|
static QHash<QString, CameraDevice*> openDevices;
|
|
static QMutex openDeviceLock, iformatLock;
|
|
static AVInputFormat* iformat, *idesktopFormat;
|
|
};
|
|
|
|
#endif // CAMERADEVICE_H
|