141 lines
4.4 KiB
C++
141 lines
4.4 KiB
C++
/* This file is part of the Pangolin Project.
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* http://github.com/stevenlovegrove/Pangolin
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*
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* Copyright (c) 2011 Steven Lovegrove
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include <pangolin/video/video.h>
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#include <pangolin/video/video_output.h>
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namespace pangolin
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{
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struct PANGOLIN_EXPORT VideoInput
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: public VideoInterface,
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public VideoFilterInterface
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{
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/////////////////////////////////////////////////////////////
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// VideoInterface Methods
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/////////////////////////////////////////////////////////////
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size_t SizeBytes() const override;
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const std::vector<StreamInfo>& Streams() const override;
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void Start() override;
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void Stop() override;
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bool GrabNext( unsigned char* image, bool wait = true ) override;
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bool GrabNewest( unsigned char* image, bool wait = true ) override;
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/////////////////////////////////////////////////////////////
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// VideoFilterInterface Methods
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/////////////////////////////////////////////////////////////
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std::vector<VideoInterface*>& InputStreams() override
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{
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return videos;
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}
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/////////////////////////////////////////////////////////////
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// VideoInput Methods
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/////////////////////////////////////////////////////////////
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VideoInput();
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VideoInput(VideoInput&& other) = default;
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VideoInput(const std::string &input_uri, const std::string &output_uri = "pango:[buffer_size_mb=100]//video_log.pango");
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~VideoInput();
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void Open(const std::string &input_uri, const std::string &output_uri = "pango:[buffer_size_mb=100]//video_log.pango");
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void Close();
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// experimental - not stable
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bool Grab( unsigned char* buffer, std::vector<Image<unsigned char> >& images, bool wait = true, bool newest = false);
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// Return details of first stream
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unsigned int Width() const {
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return (unsigned int)Streams()[0].Width();
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}
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unsigned int Height() const {
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return (unsigned int)Streams()[0].Height();
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}
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PixelFormat PixFormat() const {
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return Streams()[0].PixFormat();
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}
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const Uri& VideoUri() const {
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return uri_input;
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}
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void Reset() {
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Close();
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Open(uri_input.full_uri, uri_output.full_uri);
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}
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// Return pointer to inner video class as VideoType
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template<typename VideoType>
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VideoType* Cast() {
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return dynamic_cast<VideoType*>(video_src.get());
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}
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const std::string& LogFilename() const;
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std::string& LogFilename();
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// Switch to live video and record output to file
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void Record();
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// Switch to live video and record a single frame
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void RecordOneFrame();
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// Specify that one in n frames are logged to file. Default is 1.
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void SetTimelapse(size_t one_in_n_frames);
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// True iff grabbed live frames are being logged to file
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bool IsRecording() const;
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protected:
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void InitialiseRecorder();
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Uri uri_input;
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Uri uri_output;
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std::unique_ptr<VideoInterface> video_src;
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std::unique_ptr<VideoOutputInterface> video_recorder;
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// Use to store either video_src or video_file for VideoFilterInterface,
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// depending on which is active
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std::vector<VideoInterface*> videos;
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int buffer_size_bytes;
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int frame_num;
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size_t record_frame_skip;
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bool record_once;
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bool record_continuous;
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};
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// VideoInput subsumes the previous VideoRecordRepeat class.
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typedef VideoInput VideoRecordRepeat;
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}
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