include/avcap/osx/QT_FormatManager.h

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00001 /*
00002  * (c) 2005, 2008 Nico Pranke <Nico.Pranke@googlemail.com>, Robin Luedtke <RobinLu@gmx.de> 
00003  *
00004  * This file is part of avcap.
00005  *
00006  * avcap is free software: you can redistribute it and/or modify
00007  * it under the terms of the GNU General Public License as published by
00008  * the Free Software Foundation, either version 3 of the License, or
00009  * (at your option) any later version.
00010  *
00011  * avcap is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00014  * GNU General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU General Public License
00017  * along with avcap.  If not, see <http://www.gnu.org/licenses/>.
00018  */
00019 
00020 /* avcap is free for non-commercial use.
00021  * To use it in commercial endeavors, please contact Nico Pranke <Nico.Pranke@googlemail.com>.
00022  */
00023 
00024 #ifndef QT_FORMATMANAGER_H
00025 #define QT_FORMATMANAGER_H
00026 
00027 #include <stdint.h>
00028 #include <QuickTime/QuickTime.h>
00029 
00030 #include "FormatManager.h"
00031 
00032 namespace avcap
00033 {
00034         class QT_DeviceDescriptor;
00035         
00037         
00040         class QT_FormatManager: public FormatManager
00041         {
00042         private:
00043                 QT_DeviceDescriptor*    mQTDeviceDescriptor;
00044                 GWorldPtr                               mGWorld;
00045                 Rect                                    mCurrentBounds;
00046                 bool                                    mNeedsDecompression;
00047                 
00048         public:
00049                 QT_FormatManager(QT_DeviceDescriptor *dd);
00050                 
00051                 virtual ~QT_FormatManager();
00052                 
00053                 int setFormat(Format *fmt);
00054                 
00055                 int setFormat(uint32_t fourcc);
00056 
00057                 Format* getFormat();
00058                 
00059                 int setResolution(int w, int h);
00060 
00061                 int getWidth();
00062 
00063                 int getHeight();
00064                 
00065                 size_t getImageSize();
00066                                 
00067                 int setFramerate(int fps);
00068                 
00069                 int getFramerate();
00070                 
00071                 void query();
00072                 
00073         private:
00074                 
00075                 int probeResolutions(Format* fmt);
00076 
00077                 int checkResolution(int w, int h);
00078 
00079                 int updateGWorld(const Rect* bounds);
00080 
00081                 static uint32_t OSType2Fourcc(OSType pixel_format);
00082                 
00083                 static OSType Fourcc2OSType(uint32_t fourcc);
00084 
00085                 inline bool needsDecompression() const 
00086                         { return mNeedsDecompression; }
00087 
00088                 friend class QT_VidCapManager;
00089         };
00090 }
00091 
00092 #endif // QT_FORMATMANAGER_H

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