include/avcap/linux/V4L2_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 V4L2_FORMATMANAGER_H_
00025 #define V4L2_FORMATMANAGER_H_
00026 
00027 #include "FormatManager.h"
00028 
00029 namespace avcap
00030 {
00031         class V4L2_DeviceDescriptor;
00032         
00034         
00035         class V4L2_FormatManager: public FormatManager
00036         {
00037         
00038         public:
00039                 V4L2_FormatManager(V4L2_DeviceDescriptor *dd);
00040                 
00041                 virtual ~V4L2_FormatManager();
00042                 
00043                 int setFormat(Format *fmt);
00044                 
00045                 int setFormat(unsigned int fourcc);
00046 
00047                 Format* getFormat();
00048                 
00049                 int setResolution(int w, int h);
00050 
00051                 int setBytesPerLine(int bpl);
00052 
00053                 int getWidth();
00054 
00055                 int getHeight();
00056                 
00057                 int getBytesPerLine();
00058                 
00059                 int flush();
00060 
00061                 size_t getImageSize();
00062                 
00063                 const VideoStandard* getVideoStandard();
00064 
00065                 int setVideoStandard(const VideoStandard* std);
00066                 
00067                 int setFramerate(int fps);
00068                 
00069                 int getFramerate();
00070                 
00071                 void query();
00072 
00073         private:
00074                 int tryFormat();
00075                 
00076                 int getParams();
00077                 
00078                 void queryVideoStandards();
00079                 
00080                 void queryResolutions(Format* f);
00081         
00082         };
00083 }
00084 
00085 #endif // V4L2_FORMATMANAGER_H_

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