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/*
* Copyright (c) 2018 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef MODULES_VIDEO_CODING_CODECS_VP8_LIBVPX_VP8_DECODER_H_
#define MODULES_VIDEO_CODING_CODECS_VP8_LIBVPX_VP8_DECODER_H_
#include <cstdint>
#include <memory>
#include <optional>
#include "api/environment/environment.h"
#include "api/video/color_space.h"
#include "api/video/encoded_image.h"
#include "api/video_codecs/video_decoder.h"
#include "common_video/include/video_frame_buffer_pool.h"
#include "vpx/vpx_decoder.h"
#include "vpx/vpx_image.h"
namespace webrtc {
class LibvpxVp8Decoder : public VideoDecoder {
public:
explicit LibvpxVp8Decoder(const Environment& env);
~LibvpxVp8Decoder() override;
bool Configure(const Settings& settings) override;
int Decode(const EncodedImage& input_image,
int64_t /*render_time_ms*/) override;
// TODO(bugs.webrtc.org/15444): Remove once all subclasses have been migrated
// to expecting calls Decode without a missing_frames param.
int Decode(const EncodedImage& input_image,
bool missing_frames,
int64_t /*render_time_ms*/) override;
int RegisterDecodeCompleteCallback(DecodedImageCallback* callback) override;
int Release() override;
DecoderInfo GetDecoderInfo() const override;
const char* ImplementationName() const override;
struct DeblockParams {
DeblockParams() : max_level(6), degrade_qp(1), min_qp(0) {}
DeblockParams(int max_level, int degrade_qp, int min_qp)
: max_level(max_level), degrade_qp(degrade_qp), min_qp(min_qp) {}
int max_level; // Deblocking strength: [0, 16].
int degrade_qp; // If QP value is below, start lowering `max_level`.
int min_qp; // If QP value is below, turn off deblocking.
};
private:
class QpSmoother;
int ReturnFrame(const vpx_image_t* img,
uint32_t timeStamp,
int qp,
const webrtc::ColorSpace* explicit_color_space);
const bool use_postproc_;
VideoFrameBufferPool buffer_pool_;
DecodedImageCallback* decode_complete_callback_;
bool inited_;
vpx_codec_ctx_t* decoder_;
int last_frame_width_;
int last_frame_height_;
bool key_frame_required_;
const std::optional<DeblockParams> deblock_params_;
const std::unique_ptr<QpSmoother> qp_smoother_;
};
} // namespace webrtc
#endif // MODULES_VIDEO_CODING_CODECS_VP8_LIBVPX_VP8_DECODER_H_
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