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// Copyright 2020 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <memory>
#include <queue>
#include "common/common_types.h"
#include "video_core/command_classes/nvdec_common.h"
extern "C" {
#if defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
#endif
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4242) // conversion from 'type' to 'type', possible loss of data
#pragma warning(disable : 4244) // conversion from 'type' to 'type', possible loss of data
#endif
#include <libavcodec/avcodec.h>
#if defined(__GNUC__) || defined(__clang__)
#pragma GCC diagnostic pop
#endif
#ifdef _MSC_VER
#pragma warning(pop)
#endif
}
namespace Tegra {
class GPU;
struct VicRegisters;
void AVFrameDeleter(AVFrame* ptr);
using AVFramePtr = std::unique_ptr<AVFrame, decltype(&AVFrameDeleter)>;
namespace Decoder {
class H264;
class VP9;
} // namespace Decoder
class Codec {
public:
explicit Codec(GPU& gpu, const NvdecCommon::NvdecRegisters& regs);
~Codec();
/// Initialize the codec, returning success or failure
void Initialize();
/// Sets NVDEC video stream codec
void SetTargetCodec(NvdecCommon::VideoCodec codec);
/// Call decoders to construct headers, decode AVFrame with ffmpeg
void Decode();
/// Returns next decoded frame
[[nodiscard]] AVFramePtr GetCurrentFrame();
/// Returns the value of current_codec
[[nodiscard]] NvdecCommon::VideoCodec GetCurrentCodec() const;
/// Return name of the current codec
[[nodiscard]] std::string_view GetCurrentCodecName() const;
private:
bool initialized{};
NvdecCommon::VideoCodec current_codec{NvdecCommon::VideoCodec::None};
AVCodec* av_codec{nullptr};
AVCodecContext* av_codec_ctx{nullptr};
GPU& gpu;
const NvdecCommon::NvdecRegisters& state;
std::unique_ptr<Decoder::H264> h264_decoder;
std::unique_ptr<Decoder::VP9> vp9_decoder;
std::queue<AVFramePtr> av_frames{};
};
} // namespace Tegra
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