Éanna Ó Catháin | 919c14e | 2020-09-14 17:36:49 +0100 | [diff] [blame] | 1 | // |
| 2 | // Copyright © 2020 Arm Ltd and Contributors. All rights reserved. |
| 3 | // SPDX-License-Identifier: MIT |
| 4 | // |
| 5 | |
| 6 | #pragma once |
| 7 | |
| 8 | #include "IFrameOutput.hpp" |
| 9 | #include <opencv2/opencv.hpp> |
| 10 | |
| 11 | namespace od |
| 12 | { |
| 13 | |
| 14 | class CvVideoFileWriter : public IFrameOutput<cv::Mat> { |
| 15 | public: |
| 16 | /** |
| 17 | * @brief Default constructor. |
| 18 | * |
| 19 | * Underlying open cv video writer object will be instantiated. |
| 20 | */ |
| 21 | CvVideoFileWriter() = default; |
| 22 | |
| 23 | ~CvVideoFileWriter() override = default; |
| 24 | |
| 25 | /** |
| 26 | * @brief Initialises video file writer. |
| 27 | * |
| 28 | * Opens opencv writer with given params. FFMPEG backend is used. |
| 29 | * |
| 30 | * @param outputVideo path to the video file. |
| 31 | * @param encoding cv::CAP_PROP_FOURCC code. |
| 32 | * @param fps target frame rate. |
| 33 | * @param width target frame width. |
| 34 | * @param height target frame height. |
| 35 | * |
| 36 | */ |
| 37 | void Init(const std::string& outputVideo, int encoding, double fps, int width, int height); |
| 38 | |
| 39 | /** |
| 40 | * Writes frame to the file using opencv writer. |
| 41 | * |
| 42 | * @param frame data to write. |
| 43 | */ |
| 44 | void WriteFrame(std::shared_ptr<cv::Mat>& frame) override; |
| 45 | |
| 46 | /** |
| 47 | * Releases opencv writer. |
| 48 | */ |
| 49 | void Close() override; |
| 50 | |
| 51 | /** |
| 52 | * Checks if opencv writer was successfully opened. |
| 53 | * @return true is underlying writer is ready to be used, false otherwise. |
| 54 | */ |
| 55 | bool IsReady() const override; |
| 56 | |
| 57 | private: |
| 58 | cv::VideoWriter m_cvWriter{}; |
| 59 | bool m_ready = false; |
| 60 | }; |
| 61 | }// namespace od |