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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include <iostream>
#include "itkOpenCVVideoCapture.h"
#include "itkVideoFileReader.h"
#include "itkOpenCVVideoIOFactory.h"
#include "opencv2/core/version.hpp"
#if !defined( CV_VERSION_EPOCH )
// OpenCV 3.x
#include "opencv2/videoio/videoio_c.h"
#include "opencv2/imgproc/imgproc_c.h" // cvCvtColor, CV_RGB2BGR, ...
#endif
// ITK typedefs
typedef unsigned char ScalarPixelType;
typedef itk::Image<ScalarPixelType, 2> ScalarFrameType;
typedef itk::VideoStream< ScalarFrameType > ScalarVideoStreamType;
typedef itk::VideoFileReader< ScalarVideoStreamType > scalarReaderType;
typedef itk::RGBPixel<unsigned char> RGBPixelType;
typedef itk::Image<RGBPixelType, 2> RGBFrameType;
typedef itk::VideoStream< RGBFrameType > RGBVideoStreamType;
typedef itk::VideoFileReader< RGBVideoStreamType > rgbReaderType;
//
// Main test
//
int itkOpenCVVideoCaptureTest ( int argc, char *argv[] )
{
//
// Check arguments
//
if (argc != 6)
{
std::cerr << "Usage: " << argv[0] << " input_video scalar_output_video RGB_output_video "
<< "width height" << std::endl;
return EXIT_FAILURE;
}
itk::ObjectFactoryBase::RegisterFactory( itk::OpenCVVideoIOFactory::New() );
//
// Test with scalars
//
// Set up an itk reader
itk::ObjectFactoryBase::RegisterFactory( itk::OpenCVVideoIOFactory::New() );
scalarReaderType::Pointer scalarReader = scalarReaderType::New();
scalarReader->SetFileName(argv[1]);
// Set up OpenCVVideoCapture
typedef itk::OpenCVVideoCapture<ScalarVideoStreamType> ScalarCaptureType;
ScalarCaptureType* scalarCap = new ScalarCaptureType();
scalarCap->open(scalarReader->GetOutput());
// Check FourCC
scalarCap->set(CV_CAP_PROP_FOURCC, CV_FOURCC('M','P','4','2'));
if ((int)scalarCap->get(CV_CAP_PROP_FOURCC) != CV_FOURCC('M','P','4','2'))
{
std::cerr << "FourCC not reporting correctly" << std::endl;
return EXIT_FAILURE;
}
// Check FpS
double eps = 0.0001;
if (scalarCap->get(CV_CAP_PROP_FPS) > 24 + eps || scalarCap->get(CV_CAP_PROP_FPS) < 24 - eps)
{
std::cerr << "FpS not reporting correctly" << std::endl;
return EXIT_FAILURE;
}
// Check width and height
if ((int)(scalarCap->get(CV_CAP_PROP_FRAME_WIDTH)) != atoi(argv[4]) ||
(int)(scalarCap->get(CV_CAP_PROP_FRAME_HEIGHT)) != atoi(argv[5]))
{
std::cerr << "Frame dimensions not reporting correctly. Got ["
<< scalarCap->get(CV_CAP_PROP_FRAME_WIDTH) << ","
<< scalarCap->get(CV_CAP_PROP_FRAME_HEIGHT) << "] Expected: ["
<< atoi(argv[4]) << "," << atoi(argv[5]) << "]" << std::endl;
return EXIT_FAILURE;
}
// Set up OpenCV VideoWriter
cv::VideoWriter scalarWriter(argv[2],
(int)scalarCap->get(CV_CAP_PROP_FOURCC),
scalarCap->get(CV_CAP_PROP_FPS),
cv::Size(scalarCap->get(CV_CAP_PROP_FRAME_WIDTH),
scalarCap->get(CV_CAP_PROP_FRAME_HEIGHT)),
false);
// Loop through the frames and write
cv::Mat outFrame;
while (scalarCap->read(outFrame))
{
scalarWriter << outFrame;
}
// Clean up
delete scalarCap;
//
// Test with RGB
//
// Set up an itk reader
itk::ObjectFactoryBase::RegisterFactory( itk::OpenCVVideoIOFactory::New() );
rgbReaderType::Pointer rgbReader = rgbReaderType::New();
rgbReader->SetFileName(argv[1]);
// Set up OpenCVVideoCapture
typedef itk::OpenCVVideoCapture<RGBVideoStreamType> RGBCaptureType;
RGBCaptureType* rgbCap = new RGBCaptureType();
rgbCap->open(rgbReader->GetOutput());
// Check FourCC
if ((int)rgbCap->get(CV_CAP_PROP_FOURCC) != CV_FOURCC('M', 'P', '4', '2'))
{
std::cerr << "FourCC not reporting correctly" << std::endl;
return EXIT_FAILURE;
}
// Check FpS
if (rgbCap->get(CV_CAP_PROP_FPS) > 24 + eps || rgbCap->get(CV_CAP_PROP_FPS) < 24 - eps)
{
std::cerr << "FpS not reporting correctly" << std::endl;
return EXIT_FAILURE;
}
// Set up OpenCV VideoWriter
cv::VideoWriter rgbWriter(argv[3],
(int)rgbCap->get(CV_CAP_PROP_FOURCC),
rgbCap->get(CV_CAP_PROP_FPS),
cv::Size(rgbCap->get(CV_CAP_PROP_FRAME_WIDTH),
rgbCap->get(CV_CAP_PROP_FRAME_HEIGHT)),
true);
// Loop through the frames and write
while (rgbCap->read(outFrame))
{
rgbWriter << outFrame;
}
// Clean up
delete rgbCap;
return EXIT_SUCCESS;
}
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