chromium/media/gpu/vaapi/vaapi_jpeg_encoder.cc

// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#include "media/gpu/vaapi/vaapi_jpeg_encoder.h"

#include <stddef.h>
#include <string.h>

#include <algorithm>
#include <array>
#include <type_traits>

#include "base/check_op.h"
#include "base/numerics/safe_conversions.h"
#include "media/gpu/macros.h"
#include "media/gpu/vaapi/vaapi_wrapper.h"
#include "media/parsers/jpeg_parser.h"

namespace media {

namespace {

void FillPictureParameters(const gfx::Size& input_size,
                           int quality,
                           VABufferID output_buffer_id,
                           VAEncPictureParameterBufferJPEG* pic_param) { … }

void FillQMatrix(VAQMatrixBufferJPEG* q_matrix) { … }

void FillHuffmanTableParameters(
    VAHuffmanTableBufferJPEGBaseline* huff_table_param) { … }

void FillSliceParameters(VAEncSliceParameterBufferJPEG* slice_param) { … }

size_t FillJpegHeader(const gfx::Size& input_size,
                      const uint8_t* exif_buffer,
                      size_t exif_buffer_size,
                      int quality,
                      uint8_t* header,
                      size_t* exif_offset) { … }

}  // namespace

VaapiJpegEncoder::VaapiJpegEncoder(scoped_refptr<VaapiWrapper> vaapi_wrapper)
    : … { … }

VaapiJpegEncoder::~VaapiJpegEncoder() { … }

size_t VaapiJpegEncoder::GetMaxCodedBufferSize(const gfx::Size& size) { … }

bool VaapiJpegEncoder::Encode(const gfx::Size& input_size,
                              const uint8_t* exif_buffer,
                              size_t exif_buffer_size,
                              int quality,
                              VASurfaceID surface_id,
                              VABufferID output_buffer_id,
                              size_t* exif_offset) { … }

}  // namespace media