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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2020, Google Inc.
*
* encoder_libjpeg.h - JPEG encoding using libjpeg
*/
#pragma once
#include "encoder.h"
#include <vector>
#include "libcamera/internal/formats.h"
#include <jpeglib.h>
class EncoderLibJpeg : public Encoder
{
public:
EncoderLibJpeg();
~EncoderLibJpeg();
int configure(const libcamera::StreamConfiguration &cfg) override;
int encode(const libcamera::FrameBuffer &source,
libcamera::Span<uint8_t> destination,
libcamera::Span<const uint8_t> exifData,
unsigned int quality) override;
int encode(const std::vector<libcamera::Span<uint8_t>> &planes,
libcamera::Span<uint8_t> destination,
libcamera::Span<const uint8_t> exifData,
unsigned int quality);
private:
void compressRGB(const std::vector<libcamera::Span<uint8_t>> &planes);
void compressNV(const std::vector<libcamera::Span<uint8_t>> &planes);
struct jpeg_compress_struct compress_;
struct jpeg_error_mgr jerr_;
const libcamera::PixelFormatInfo *pixelFormatInfo_;
bool nv_;
bool nvSwap_;
};
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