chromium/third_party/blink/renderer/modules/webcodecs/video_decoder_helper.cc

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "third_party/blink/renderer/modules/webcodecs/video_decoder_helper.h"

#if BUILDFLAG(USE_PROPRIETARY_CODECS)
#include "media/filters/h264_to_annex_b_bitstream_converter.h"  // nogncheck
#include "media/formats/mp4/box_definitions.h"                  // nogncheck
#if BUILDFLAG(ENABLE_PLATFORM_HEVC)
#include "media/filters/h265_to_annex_b_bitstream_converter.h"  // nogncheck
#include "media/formats/mp4/hevc.h"                             // nogncheck
#endif  // BUILDFLAG(ENABLE_PLATFORM_HEVC)
#endif  // BUILDFLAG(USE_PROPRIETARY_CODECS)
#include "media/base/media_types.h"

namespace blink {

// static
std::unique_ptr<VideoDecoderHelper> VideoDecoderHelper::Create(
    media::VideoType video_type,
    const uint8_t* configuration_record,
    int configuration_record_size,
    Status* status_out) { … }

VideoDecoderHelper::VideoDecoderHelper(media::VideoType video_type) { … }

VideoDecoderHelper::~VideoDecoderHelper() = default;

VideoDecoderHelper::Status VideoDecoderHelper::Initialize(
    const uint8_t* configuration_record,
    int configuration_record_size) { … }

uint32_t VideoDecoderHelper::CalculateNeededOutputBufferSize(
    const uint8_t* input,
    uint32_t input_size,
    bool is_first_chunk) const { … }

VideoDecoderHelper::Status VideoDecoderHelper::ConvertNalUnitStreamToByteStream(
    const uint8_t* input,
    uint32_t input_size,
    uint8_t* output,
    uint32_t* output_size,
    bool is_first_chunk) { … }

}  // namespace blink