75 lines
2.4 KiB
C++
75 lines
2.4 KiB
C++
/*
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OpenPnp-Capture: a video capture subsystem.
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Linux context class to keep track of the global state.
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Created by Niels Moseley on 7/11/17.
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Copyright (c) 2017 Niels Moseley.
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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#ifndef linux_platformcontext_h
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#define linux_platformcontext_h
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#define _CRT_SECURE_NO_WARNINGS
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#include <vector>
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#include <string>
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#include <map>
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#include <stdint.h>
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#include "openpnp-capture.h"
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#pragma comment(lib, "strmiids")
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#include "platformdeviceinfo.h"
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#include "../common/context.h"
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/** context base class keeps track of all the platform independent
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objects and information */
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class PlatformContext : public Context
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{
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public:
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/** Create a context for the library.
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Device enumeration is perform in the constructor,
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so all devices must be present in the system when
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the Context is created or devices will not be found.
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Re-enumeration support is pending.
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*/
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PlatformContext();
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virtual ~PlatformContext();
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protected:
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bool queryFrameSize(int fd, uint32_t index, uint32_t pixelformat, uint32_t *width, uint32_t *height);
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uint32_t findMaxFrameRate(int fd, uint32_t pixelformat, uint32_t width, uint32_t height);
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/** Enumerate V4L capture devices and put their
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information into the m_devices array
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*/
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virtual bool enumerateDevices();
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};
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#endif |