mirror of
git://nv-tegra.nvidia.com/tegra/gst-src/opencv_gst_samples.git
synced 2025-12-22 17:32:18 +03:00
Updating prebuilts and/or headers
f033de710a45790f16c7a2c1b693a1950187d084 - opencv-sample-apps/README 78f8540a5b70d8f6f33af45dce451967e058c457 - opencv-sample-apps/opencv_camera/Makefile db64c69a108016f4caa0562a86a9316933453ae6 - opencv-sample-apps/opencv_camera/opencv_gst_camera.cpp b04f70bbeeeb21aaedc10c2c3560b643bc005ea9 - opencv-sample-apps/opencv_encoder/Makefile afd48b88d80c0e8dd65329a0a0192ef0a3c83e7f - opencv-sample-apps/opencv_encoder/opencv_gst_encoder.cpp c15cb929e1a9a8fb03830c5ece6b68ea773ce687 - opencv-sample-apps/opencv_decoder/Makefile ebb52673c89af5c951ca7e62d7fa49f1700b18a6 - opencv-sample-apps/opencv_decoder/opencv_gst_decoder.cpp Change-Id: I4b8622004054c4dd3d90b7783bf60e1c2d72780b
This commit is contained in:
svcmobrel-release
175
opencv-sample-apps/opencv_encoder/opencv_gst_encoder.cpp
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175
opencv-sample-apps/opencv_encoder/opencv_gst_encoder.cpp
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/*
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* Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* * Neither the name of NVIDIA CORPORATION nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <iostream>
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#include <string>
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#include <sstream>
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#include <opencv2/core/core.hpp>
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#include <opencv2/videoio/videoio.hpp>
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#include <opencv2/highgui/highgui.hpp>
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#include <opencv2/imgproc/imgproc.hpp>
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static void help()
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{
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std::cout << "\nThis is a sample OpenCV application to demonstrate usage "
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"of NVIDIA accelerated GStreamer to encode CSI camera capture in an H264 "
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"mp4 container file.\n\n"
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"./opencv_nvgstenc [--Options]\n\n"
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"OPTIONS:\n"
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"\t-h,--help Prints this message\n"
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"\t--width Capture width [Default = 1280]\n"
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"\t--height Capture height [Default = 720]\n"
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"\t--fps Frames per second [Default = 30]\n"
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"\t--filename Target H264 encoded mp4 filestream "
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"[Default = test_camera_h264.mp4]\n"
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"\t--time Duration for capture in seconds [Default = 10]\n\n"
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<< std::endl;
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}
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static std::string create_cap_pipeline (int width, int height, int fps,
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unsigned int num_buffers)
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{
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std::stringstream cap_pipeline_str;
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cap_pipeline_str << "nvarguscamerasrc num-buffers="
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<< std::to_string(num_buffers) << " ! video/x-raw(memory:NVMM), "
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"width=(int)" << std::to_string(width) << ", height=(int)"
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<< std::to_string(height) << ", format=(string)NV12, "
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"framerate=(fraction)" << std::to_string(fps) << "/1 ! nvvidconv ! "
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"video/x-raw, format=(string)I420 ! videoconvert ! video/x-raw, "
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"format=(string)BGR ! appsink";
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return cap_pipeline_str.str();
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}
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static std::string create_out_pipeline (std::string filename)
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{
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std::stringstream out_pipeline_str;
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out_pipeline_str << "appsrc ! video/x-raw, format=(string)BGR ! "
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"videoconvert ! video/x-raw, format=(string)I420 ! nvvidconv ! "
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"video/x-raw(memory:NVMM), format=(string)NV12 ! nvv4l2h264enc ! "
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"h264parse ! qtmux ! filesink location="
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<< filename << " ";
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return out_pipeline_str.str();
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}
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int main(int argc, char const *argv[])
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{
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unsigned int fps;
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unsigned int time;
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unsigned int num_buffers;
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int width;
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int height;
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int return_val = 0;
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double fps_calculated;
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std::string filename;
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std::string cap_pipeline;
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std::string out_pipeline;
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cv::VideoCapture capture;
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cv::VideoWriter output;
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cv::Mat frame;
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cv::TickMeter ticks;
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const std::string keys =
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"{h help usage ? | | message }"
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"{width |1280 | width }"
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"{height |720 | height }"
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"{fps |30 | fps (supported: fps > 0) }"
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"{filename |test_camera_h264.mp4 | h264 encoded filename }"
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"{time |10 | capture time in seconds }"
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;
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cv::CommandLineParser cmd_parser(argc, argv, keys);
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if (cmd_parser.has("help"))
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{
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help();
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goto cleanup;
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}
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fps = cmd_parser.get<unsigned int>("fps");
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width = cmd_parser.get<int>("width");
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height = cmd_parser.get<int>("height");
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filename = cmd_parser.get<std::string>("filename");
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time = cmd_parser.get<unsigned int>("time");
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if (!cmd_parser.check())
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{
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cmd_parser.printErrors();
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help();
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return_val = -1;
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goto cleanup;
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}
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num_buffers = fps * time;
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cap_pipeline = create_cap_pipeline(width, height, fps, num_buffers);
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out_pipeline = create_out_pipeline(filename);
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capture.open(cap_pipeline, cv::CAP_GSTREAMER);
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output.open(out_pipeline, cv::CAP_GSTREAMER, 0, capture.get(cv::CAP_PROP_FPS),
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cv::Size(capture.get(cv::CAP_PROP_FRAME_WIDTH),
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capture.get(cv::CAP_PROP_FRAME_HEIGHT)));
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if (!capture.isOpened() || !output.isOpened())
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{
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std::cerr << "Failed to open VideoCapture/ VideoWriter" << std::endl;
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return_val = -4;
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goto cleanup;
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}
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while (true)
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{
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ticks.start();
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capture >> frame;
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if (frame.empty())
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{
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break;
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}
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// computations
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output.write(frame);
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cv::imshow("Capture Window", frame);
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if (cv::waitKey(1) == 'q')
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{
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break;
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}
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ticks.stop();
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}
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if (ticks.getCounter() == 0)
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{
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std::cerr << "No frames processed" << std::endl;
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return_val = -10;
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goto cleanup;
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}
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fps_calculated = ticks.getCounter() / ticks.getTimeSec();
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std::cout << "Fps observed: " << fps_calculated << std::endl;
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cleanup:
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capture.release();
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output.release();
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return return_val;
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}
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