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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_GPU_V4L2_V4L2_VIDEO_DECODER_DELEGATE_H264_LEGACY_H_
#define MEDIA_GPU_V4L2_V4L2_VIDEO_DECODER_DELEGATE_H264_LEGACY_H_
#include <memory>
#include <vector>
#include "base/memory/scoped_refptr.h"
#include "media/gpu/h264_decoder.h"
#include "media/gpu/h264_dpb.h"
namespace media {
class V4L2Device;
class V4L2DecodeSurface;
class V4L2DecodeSurfaceHandler;
struct V4L2VideoDecoderDelegateH264LegacyPrivate;
class V4L2VideoDecoderDelegateH264Legacy : public H264Decoder::H264Accelerator {
public:
using Status = H264Decoder::H264Accelerator::Status;
explicit V4L2VideoDecoderDelegateH264Legacy(
V4L2DecodeSurfaceHandler* surface_handler,
V4L2Device* device);
V4L2VideoDecoderDelegateH264Legacy(
const V4L2VideoDecoderDelegateH264Legacy&) = delete;
V4L2VideoDecoderDelegateH264Legacy& operator=(
const V4L2VideoDecoderDelegateH264Legacy&) = delete;
~V4L2VideoDecoderDelegateH264Legacy() override;
// H264Decoder::H264Accelerator implementation.
scoped_refptr<H264Picture> CreateH264Picture() override;
Status SubmitFrameMetadata(const H264SPS* sps,
const H264PPS* pps,
const H264DPB& dpb,
const H264Picture::Vector& ref_pic_listp0,
const H264Picture::Vector& ref_pic_listb0,
const H264Picture::Vector& ref_pic_listb1,
scoped_refptr<H264Picture> pic) override;
Status SubmitSlice(const H264PPS* pps,
const H264SliceHeader* slice_hdr,
const H264Picture::Vector& ref_pic_list0,
const H264Picture::Vector& ref_pic_list1,
scoped_refptr<H264Picture> pic,
const uint8_t* data,
size_t size,
const std::vector<SubsampleEntry>& subsamples) override;
Status SubmitDecode(scoped_refptr<H264Picture> pic) override;
bool OutputPicture(scoped_refptr<H264Picture> pic) override;
void Reset() override;
private:
// Max size of reference list.
static constexpr size_t kDPBIndicesListSize = 32;
void H264PictureListToDPBIndicesList(const H264Picture::Vector& src_pic_list,
uint8_t dst_list[kDPBIndicesListSize]);
void H264DPBToV4L2DPB(
const H264DPB& dpb,
std::vector<scoped_refptr<V4L2DecodeSurface>>* ref_surfaces);
scoped_refptr<V4L2DecodeSurface> H264PictureToV4L2DecodeSurface(
H264Picture* pic);
size_t num_slices_;
V4L2DecodeSurfaceHandler* const surface_handler_;
V4L2Device* const device_;
// Contains the kernel-specific structures that we don't want to expose
// outside of the compilation unit.
const std::unique_ptr<V4L2VideoDecoderDelegateH264LegacyPrivate> priv_;
};
} // namespace media
#endif // MEDIA_GPU_V4L2_V4L2_VIDEO_DECODER_DELEGATE_H264_LEGACY_H_