From 84297540b629ec7a0ccb7d053c638b4f88dc7920 Mon Sep 17 00:00:00 2001 From: Hirokazu Honda Date: Thu, 4 Feb 2021 22:04:20 +0000 Subject: android: libyuv: Introduce PostProcessorYuv This adds PostProcessorYuv. It supports NV12 buffer scaling using libyuv. Signed-off-by: Hirokazu Honda Reviewed-by: Jacopo Mondi Reviewed-by: Laurent Pinchart Signed-off-by: Laurent Pinchart --- src/android/yuv/post_processor_yuv.h | 42 ++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 src/android/yuv/post_processor_yuv.h (limited to 'src/android/yuv/post_processor_yuv.h') diff --git a/src/android/yuv/post_processor_yuv.h b/src/android/yuv/post_processor_yuv.h new file mode 100644 index 00000000..c58b4cf7 --- /dev/null +++ b/src/android/yuv/post_processor_yuv.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Copyright (C) 2021, Google Inc. + * + * post_processor_yuv.h - Post Processor using libyuv + */ +#ifndef __ANDROID_POST_PROCESSOR_YUV_H__ +#define __ANDROID_POST_PROCESSOR_YUV_H__ + +#include "../post_processor.h" + +#include + +class CameraDevice; + +class PostProcessorYuv : public PostProcessor +{ +public: + PostProcessorYuv() = default; + + int configure(const libcamera::StreamConfiguration &incfg, + const libcamera::StreamConfiguration &outcfg) override; + int process(const libcamera::FrameBuffer &source, + libcamera::MappedBuffer *destination, + const CameraMetadata &requestMetadata, + CameraMetadata *metadata) override; + +private: + bool isValidBuffers(const libcamera::FrameBuffer &source, + const libcamera::MappedBuffer &destination) const; + void calculateLengths(const libcamera::StreamConfiguration &inCfg, + const libcamera::StreamConfiguration &outCfg); + + libcamera::Size sourceSize_; + libcamera::Size destinationSize_; + unsigned int sourceLength_[2] = {}; + unsigned int destinationLength_[2] = {}; + unsigned int sourceStride_[2] = {}; + unsigned int destinationStride_[2] = {}; +}; + +#endif /* __ANDROID_POST_PROCESSOR_YUV_H__ */ -- cgit v1.2.1