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#include "perf_precomp.hpp"
#include "opencv2/videoio.hpp"

namespace opencv_test { namespace {

#if defined(HAVE_NVCUVID)

#if defined(HAVE_FFMPEG_WRAPPER) // should this be set in preprocessor or in cvconfig.h
#define VIDEO_SRC Values("cv/video/768x576.avi", "cv/video/1920x1080.avi")
#else
// CUDA demuxer has to fall back to ffmpeg to process "cv/video/768x576.avi"
#define VIDEO_SRC Values( "cv/video/1920x1080.avi")
#endif

DEF_PARAM_TEST_1(FileName, string);

//////////////////////////////////////////////////////
// VideoReader

PERF_TEST_P(FileName, VideoReader, VIDEO_SRC)
{
    declare.time(20);

    const string inputFile = perf::TestBase::getDataPath(GetParam());

    if (PERF_RUN_CUDA())
    {
        cv::Ptr<cv::cudacodec::VideoReader> d_reader = cv::cudacodec::createVideoReader(inputFile);

        cv::cuda::GpuMat frame;

        TEST_CYCLE_N(10) d_reader->nextFrame(frame);

        CUDA_SANITY_CHECK(frame);
    }
    else
    {
        cv::VideoCapture reader(inputFile);
        ASSERT_TRUE( reader.isOpened() );

        cv::Mat frame;

        TEST_CYCLE_N(10) reader >> frame;

        CPU_SANITY_CHECK(frame);
    }
}

#endif

//////////////////////////////////////////////////////
// VideoWriter

#if defined(HAVE_NVCUVID) && defined(_WIN32)

PERF_TEST_P(FileName, VideoWriter, VIDEO_SRC)
{
    declare.time(30);

    const string inputFile = perf::TestBase::getDataPath(GetParam());
    const string outputFile = cv::tempfile(".avi");

    const double FPS = 25.0;

    cv::VideoCapture reader(inputFile);
    ASSERT_TRUE( reader.isOpened() );

    cv::Mat frame;

    if (PERF_RUN_CUDA())
    {
        cv::Ptr<cv::cudacodec::VideoWriter> d_writer;

        cv::cuda::GpuMat d_frame;

        for (int i = 0; i < 10; ++i)
        {
            reader >> frame;
            ASSERT_FALSE(frame.empty());

            d_frame.upload(frame);

            if (d_writer.empty())
                d_writer = cv::cudacodec::createVideoWriter(outputFile, frame.size(), FPS);

            startTimer(); next();
            d_writer->write(d_frame);
            stopTimer();
        }
    }
    else
    {
        cv::VideoWriter writer;

        for (int i = 0; i < 10; ++i)
        {
            reader >> frame;
            ASSERT_FALSE(frame.empty());

            if (!writer.isOpened())
                writer.open(outputFile, VideoWriter::fourcc('X', 'V', 'I', 'D'), FPS, frame.size());

            startTimer(); next();
            writer.write(frame);
            stopTimer();
        }
    }

    SANITY_CHECK(frame);
}

#endif
}} // namespace