include/avcap/linux/V4L1_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 
00025 #ifndef V4L1_FORMATMANAGER_H_
00026 #define V4L1_FORMATMANAGER_H_
00027 
00028 #include <linux/videodev.h>
00029 
00030 #include "FormatManager.h"
00031 
00032 namespace avcap
00033 {
00034         class V4L1_DeviceDescriptor;
00035         
00037 
00042         class V4L1_FormatManager: public FormatManager
00043         {
00044         private:
00045                 struct fmtdesc {
00046                         char    description[32];
00047                         __u16   palette;
00048                         __u32   fourcc;
00049                         float   sizefactor;
00050                 };
00051                 
00052                 static const int mNumDescriptors = 18; 
00053 
00054                 static const fmtdesc mDescriptors[mNumDescriptors];
00055                 
00056                 bool mIsOVFX2;
00057                 
00058         public:
00059                 V4L1_FormatManager(V4L1_DeviceDescriptor *dd);
00060                 
00061                 virtual ~V4L1_FormatManager();
00062                 
00063                 int setFormat(Format *fmt);
00064                 
00065                 int setFormat(unsigned int fourcc);
00066 
00067                 Format* getFormat();
00068                 
00069                 int setResolution(int w, int h);
00070                 
00071                 int setBytesPerLine(int bpl);
00072 
00073                 int getWidth();
00074 
00075                 int getHeight();
00076                 
00077                 int getBytesPerLine();
00078 
00079                 int flush();
00080 
00081                 size_t getImageSize();
00082 
00083                 const VideoStandard* getVideoStandard();
00084 
00085                 int setVideoStandard(const VideoStandard* std);
00086                 
00088                 int setFramerate(int fps);
00089                 
00090                 int getFramerate();
00091 
00092                 __u16 getPalette();
00093                 
00094                 void query();
00095 
00096         private:
00097                 int getParams();
00098 
00099                 void queryResolutions();
00100                 
00101                 __u16 getPalette(__u32 fourcc);
00102                 
00103                 int updateDimensions();
00104         };
00105 }
00106 
00107 #endif //V4L1_FORMATMANAGER_H_

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