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// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MEDIA_GPU_TEST_VIDEO_ENCODER_DECODER_BUFFER_VALIDATOR_H_
#define MEDIA_GPU_TEST_VIDEO_ENCODER_DECODER_BUFFER_VALIDATOR_H_
#include <stdint.h>
#include <array>
#include <optional>
#include "base/memory/scoped_refptr.h"
#include "media/gpu/h264_dpb.h"
#include "media/gpu/test/bitstream_helpers.h"
#include "media/parsers/h264_parser.h"
#include "media/parsers/vp8_parser.h"
#include "media/parsers/vp9_parser.h"
#include "third_party/libgav1/src/src/obu_parser.h"
#include "ui/gfx/geometry/rect.h"
namespace media {
class DecoderBuffer;
namespace test {
class DecoderBufferValidator : public BitstreamProcessor {
public:
static std::unique_ptr<DecoderBufferValidator> Create(
VideoCodecProfile profile,
const gfx::Rect& visible_rect,
size_t num_spatial_layers,
size_t num_temporal_layers,
SVCInterLayerPredMode inter_layer_pred);
~DecoderBufferValidator() override;
// BitstreamProcessor implementation.
void ProcessBitstream(scoped_refptr<BitstreamRef> bitstream,
size_t frame_index) override;
bool WaitUntilDone() override;
const std::vector<int>& GetQPValues(size_t spatial_idx,
size_t temporal_idx) const {
return qp_values_[spatial_idx][temporal_idx];
}
protected:
static constexpr size_t kMaxTemporalLayers = 3;
static constexpr size_t kMaxSpatialLayers = 3;
DecoderBufferValidator(const gfx::Rect& visible_rect,
size_t num_temporal_layers);
// Returns true if decoder_buffer is valid and expected, otherwise false.
virtual bool Validate(const DecoderBuffer* buffer,
const BitstreamBufferMetadata& metadata) = 0;
// The expected visible rectangle that |decoder_buffer| has.
const gfx::Rect visible_rect_;
// The number of temporal layers.
const size_t num_temporal_layers_;
std::array<std::array<std::vector<int>, kMaxTemporalLayers>,
kMaxSpatialLayers>
qp_values_;
private:
// The number of detected errors by Validate().
size_t num_errors_ = 0;
};
class H264Validator : public DecoderBufferValidator {
public:
H264Validator(VideoCodecProfile profile,
const gfx::Rect& visible_rect,
const size_t num_temporal_layers,
std::optional<uint8_t> level = std::nullopt);
~H264Validator() override;
private:
bool Validate(const DecoderBuffer* buffer,
const BitstreamBufferMetadata& metadata) override;
// Returns whether the |slice_hdr| is the first slice of a new frame.
bool IsNewPicture(const H264SliceHeader& slice_hdr);
// Initialize |cur_pic_| with |slice_hdr|.
bool UpdateCurrentPicture(const H264SliceHeader& slice_hdr);
// These represent whether sequence parameter set (SPS), picture parameter set
// (PPS) and IDR frame have been input, respectively.
bool seen_sps_;
bool seen_pps_;
bool seen_idr_;
// Current h264 picture. It is used to check that H264Picture is created from
// a given bitstream.
scoped_refptr<H264Picture> cur_pic_;
// Current SPS and PPS id.
int cur_sps_id_;
int cur_pps_id_;
H264Parser parser_;
// The expected h264 profile of |decoder_buffer|.
const int profile_;
// The expected h264 level of |decoder_buffer|. Check if it is not
// std::nullopt.
std::optional<uint8_t> level_;
};
class VP8Validator : public DecoderBufferValidator {
public:
VP8Validator(const gfx::Rect& visible_rect, size_t num_temporal_layers);
~VP8Validator() override;
private:
bool Validate(const DecoderBuffer* buffer,
const BitstreamBufferMetadata& metadata) override;
Vp8Parser parser_;
// Whether key frame has been input.
bool seen_keyframe_ = false;
};
class VP9Validator : public DecoderBufferValidator {
public:
VP9Validator(VideoCodecProfile profile,
const gfx::Rect& visible_rect,
size_t max_num_spatial_layers,
size_t num_temporal_layers,
SVCInterLayerPredMode inter_layer_pred);
~VP9Validator() override;
private:
// Struct representing the expected state of a reference buffer.
struct BufferState {
int picture_id = 0;
uint8_t spatial_id = 0;
uint8_t temporal_id = 0;
};
bool Validate(const DecoderBuffer* buffer,
const BitstreamBufferMetadata& metadata) override;
// Validate DecoderBuffer for a vanilla stream.
bool ValidateVanillaStream(const DecoderBuffer& decoder_buffer,
const BitstreamBufferMetadata& metadata,
const Vp9FrameHeader& header);
// Validate DecoderBuffer for a temporal or spatial layer stream.
bool ValidateSVCStream(const DecoderBuffer& decoder_buffer,
const BitstreamBufferMetadata& metadata,
const Vp9FrameHeader& header);
// Validate DecoderBuffer for S-mode stream.
bool ValidateSmodeStream(const DecoderBuffer& decoder_buffer,
const BitstreamBufferMetadata& metadata,
const Vp9FrameHeader& header);
// The expected VP9 profile of |decoder_buffer|.
const int profile_;
const size_t max_num_spatial_layers_;
const bool s_mode_;
std::vector<std::unique_ptr<Vp9Parser>> parsers_;
size_t cur_num_spatial_layers_;
std::vector<gfx::Size> spatial_layer_resolutions_;
int next_picture_id_;
uint8_t begin_active_spatial_layer_index_ = 0;
// An optional state for each specified VP9 reference buffer.
// A nullopt indicates either keyframe not yet seen, or that a
// buffer has been invalidated (e.g. due to sync points).
std::vector<std::array<std::optional<BufferState>, kVp9NumRefFrames>>
reference_buffers_;
std::optional<base::TimeDelta> dropped_superframe_timestamp_;
};
class AV1Validator : public DecoderBufferValidator {
public:
// TODO(greenjustin): Add support for more than 1 spatial layer if we need it.
explicit AV1Validator(const gfx::Rect& visible_rect,
size_t num_temporal_layers);
~AV1Validator() override = default;
private:
bool Validate(const DecoderBuffer* buffer,
const BitstreamBufferMetadata& metadata) override;
// Validate DecoderBuffer for a temporal layer stream.
bool ValidateTemporalSVCStream(const DecoderBuffer& buffer,
const BitstreamBufferMetadata& metadata,
const libgav1::ObuFrameHeader& header);
libgav1::InternalFrameBufferList buffer_list_;
libgav1::BufferPool buffer_pool_;
libgav1::DecoderState decoder_state_;
std::optional<libgav1::ObuSequenceHeader> sequence_header_ = std::nullopt;
uint64_t frame_num_ = 0;
};
} // namespace test
} // namespace media
#endif // MEDIA_GPU_TEST_VIDEO_ENCODER_DECODER_BUFFER_VALIDATOR_H_
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