Niklas Söderlund
c89cfa534b
With the buffer allocator in use it's possible to cache the dmabuf memory mappings when starting the camera instead of mapping and unmapping them each time. Signed-off-by: Niklas Söderlund <niklas.soderlund@ragnatech.se> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
32 lines
650 B
C++
32 lines
650 B
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2019, Google Inc.
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*
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* buffer_writer.h - Buffer writer
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*/
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#ifndef __LIBCAMERA_BUFFER_WRITER_H__
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#define __LIBCAMERA_BUFFER_WRITER_H__
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#include <map>
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#include <string>
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#include <libcamera/buffer.h>
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class BufferWriter
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{
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public:
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BufferWriter(const std::string &pattern = "frame-#.bin");
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~BufferWriter();
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void mapBuffer(libcamera::FrameBuffer *buffer);
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int write(libcamera::FrameBuffer *buffer,
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const std::string &streamName);
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private:
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std::string pattern_;
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std::map<int, std::pair<void *, unsigned int>> mappedBuffers_;
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};
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#endif /* __LIBCAMERA_BUFFER_WRITER_H__ */
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