recopy fresh game engien from trunk
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Joseph Eagar
198
source/gameengine/VideoTexture/VideoBase.cpp
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198
source/gameengine/VideoTexture/VideoBase.cpp
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/* $Id$
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-----------------------------------------------------------------------------
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This source file is part of VideoTexture library
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Copyright (c) 2007 The Zdeno Ash Miklas
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later
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version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along with
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this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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Place - Suite 330, Boston, MA 02111-1307, USA, or go to
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http://www.gnu.org/copyleft/lesser.txt.
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-----------------------------------------------------------------------------
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*/
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#if defined WIN32
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#define WINDOWS_LEAN_AND_MEAN
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#include <windows.h>
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#endif
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#include "VideoBase.h"
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#include "FilterSource.h"
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// VideoBase implementation
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// initialize image data
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void VideoBase::init(short width, short height)
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{
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// save original sizes
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m_orgSize[0] = width;
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m_orgSize[1] = height;
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// call base class initialization
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ImageBase::init(width, height);
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}
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// process video frame
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void VideoBase::process (BYTE * sample)
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{
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// if scale was changed
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if (m_scaleChange)
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// reset image
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init(m_orgSize[0], m_orgSize[1]);
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// if image is allocated and is able to store new image
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if (m_image != NULL && !m_avail)
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{
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// filters used
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// convert video format to image
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switch (m_format)
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{
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case RGBA32:
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{
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FilterRGBA32 filtRGBA;
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// use filter object for format to convert image
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filterImage(filtRGBA, sample, m_orgSize);
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// finish
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break;
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}
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case RGB24:
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{
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FilterRGB24 filtRGB;
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// use filter object for format to convert image
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filterImage(filtRGB, sample, m_orgSize);
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// finish
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break;
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}
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case YV12:
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{
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// use filter object for format to convert image
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FilterYV12 filtYUV;
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filtYUV.setBuffs(sample, m_orgSize);
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filterImage(filtYUV, sample, m_orgSize);
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// finish
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break;
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}
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}
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}
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}
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// python functions
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// exceptions for video source initialization
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ExceptionID SourceVideoEmpty, SourceVideoCreation;
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ExpDesc SourceVideoEmptyDesc (SourceVideoEmpty, "Source Video is empty");
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ExpDesc SourceVideoCreationDesc (SourceVideoCreation, "SourceVideo object was not created");
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// open video source
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void Video_open (VideoBase * self, char * file, short captureID)
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{
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// if file is empty, throw exception
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if (file == NULL) THRWEXCP(SourceVideoEmpty, S_OK);
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// open video file or capture device
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if (captureID >= 0)
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self->openCam(file, captureID);
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else
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self->openFile(file);
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}
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// play video
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PyObject * Video_play (PyImage * self)
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{ if (getVideo(self)->play()) Py_RETURN_TRUE; else Py_RETURN_FALSE; }
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// pause video
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PyObject * Video_pause (PyImage * self)
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{ if (getVideo(self)->pause()) Py_RETURN_TRUE; else Py_RETURN_FALSE; }
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PyObject * Video_stop (PyImage * self)
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{ if (getVideo(self)->stop()) Py_RETURN_TRUE; else Py_RETURN_FALSE; }
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// get status
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PyObject * Video_getStatus (PyImage * self, void * closure)
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{
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return Py_BuildValue("h", getVideo(self)->getStatus());
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}
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// refresh video
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PyObject * Video_refresh (PyImage * self)
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{
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getVideo(self)->refresh();
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return Video_getStatus(self, NULL);
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}
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// get range
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PyObject * Video_getRange (PyImage * self, void * closure)
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{
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return Py_BuildValue("[ff]", getVideo(self)->getRange()[0],
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getVideo(self)->getRange()[1]);
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}
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// set range
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int Video_setRange (PyImage * self, PyObject * value, void * closure)
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{
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// check validity of parameter
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if (value == NULL || !PySequence_Check(value) || PySequence_Length(value) != 2
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|| !PyFloat_Check(PySequence_Fast_GET_ITEM(value, 0))
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|| !PyFloat_Check(PySequence_Fast_GET_ITEM(value, 1)))
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{
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PyErr_SetString(PyExc_TypeError, "The value must be a sequence of 2 float");
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return -1;
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}
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// set range
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getVideo(self)->setRange(PyFloat_AsDouble(PySequence_Fast_GET_ITEM(value, 0)),
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PyFloat_AsDouble(PySequence_Fast_GET_ITEM(value, 1)));
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// success
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return 0;
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}
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// get repeat
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PyObject * Video_getRepeat (PyImage * self, void * closure)
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{ return Py_BuildValue("h", getVideo(self)->getRepeat()); }
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// set repeat
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int Video_setRepeat (PyImage * self, PyObject * value, void * closure)
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{
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// check validity of parameter
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if (value == NULL || !PyLong_Check(value))
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{
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PyErr_SetString(PyExc_TypeError, "The value must be an int");
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return -1;
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}
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// set repeat
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getVideo(self)->setRepeat(int(PyLong_AsSsize_t(value)));
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// success
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return 0;
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}
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// get frame rate
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PyObject * Video_getFrameRate (PyImage * self, void * closure)
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{ return Py_BuildValue("f", double(getVideo(self)->getFrameRate())); }
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// set frame rate
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int Video_setFrameRate (PyImage * self, PyObject * value, void * closure)
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{
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// check validity of parameter
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if (value == NULL || !PyFloat_Check(value))
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{
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PyErr_SetString(PyExc_TypeError, "The value must be a float");
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return -1;
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}
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// set repeat
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getVideo(self)->setFrameRate(float(PyFloat_AsDouble(value)));
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// success
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return 0;
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}
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