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-rw-r--r--src/video_core/host1x/codecs/codec.cpp310
-rw-r--r--src/video_core/host1x/codecs/codec.h84
-rw-r--r--src/video_core/host1x/codecs/h264.cpp278
-rw-r--r--src/video_core/host1x/codecs/h264.h177
-rw-r--r--src/video_core/host1x/codecs/vp8.cpp53
-rw-r--r--src/video_core/host1x/codecs/vp8.h78
-rw-r--r--src/video_core/host1x/codecs/vp9.cpp947
-rw-r--r--src/video_core/host1x/codecs/vp9.h198
-rw-r--r--src/video_core/host1x/codecs/vp9_types.h305
9 files changed, 2430 insertions, 0 deletions
diff --git a/src/video_core/host1x/codecs/codec.cpp b/src/video_core/host1x/codecs/codec.cpp
new file mode 100644
index 000000000..42e7d6e4f
--- /dev/null
+++ b/src/video_core/host1x/codecs/codec.cpp
@@ -0,0 +1,310 @@
+// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <algorithm>
+#include <fstream>
+#include <vector>
+#include "common/assert.h"
+#include "common/settings.h"
+#include "video_core/host1x/codecs/codec.h"
+#include "video_core/host1x/codecs/h264.h"
+#include "video_core/host1x/codecs/vp8.h"
+#include "video_core/host1x/codecs/vp9.h"
+#include "video_core/host1x/host1x.h"
+#include "video_core/memory_manager.h"
+
+extern "C" {
+#include <libavutil/opt.h>
+#ifdef LIBVA_FOUND
+// for querying VAAPI driver information
+#include <libavutil/hwcontext_vaapi.h>
+#endif
+}
+
+namespace Tegra {
+namespace {
+constexpr AVPixelFormat PREFERRED_GPU_FMT = AV_PIX_FMT_NV12;
+constexpr AVPixelFormat PREFERRED_CPU_FMT = AV_PIX_FMT_YUV420P;
+constexpr std::array PREFERRED_GPU_DECODERS = {
+ AV_HWDEVICE_TYPE_CUDA,
+#ifdef _WIN32
+ AV_HWDEVICE_TYPE_D3D11VA,
+ AV_HWDEVICE_TYPE_DXVA2,
+#elif defined(__unix__)
+ AV_HWDEVICE_TYPE_VAAPI,
+ AV_HWDEVICE_TYPE_VDPAU,
+#endif
+ // last resort for Linux Flatpak (w/ NVIDIA)
+ AV_HWDEVICE_TYPE_VULKAN,
+};
+
+void AVPacketDeleter(AVPacket* ptr) {
+ av_packet_free(&ptr);
+}
+
+using AVPacketPtr = std::unique_ptr<AVPacket, decltype(&AVPacketDeleter)>;
+
+AVPixelFormat GetGpuFormat(AVCodecContext* av_codec_ctx, const AVPixelFormat* pix_fmts) {
+ for (const AVPixelFormat* p = pix_fmts; *p != AV_PIX_FMT_NONE; ++p) {
+ if (*p == av_codec_ctx->pix_fmt) {
+ return av_codec_ctx->pix_fmt;
+ }
+ }
+ LOG_INFO(Service_NVDRV, "Could not find compatible GPU AV format, falling back to CPU");
+ av_buffer_unref(&av_codec_ctx->hw_device_ctx);
+ av_codec_ctx->pix_fmt = PREFERRED_CPU_FMT;
+ return PREFERRED_CPU_FMT;
+}
+
+// List all the currently available hwcontext in ffmpeg
+std::vector<AVHWDeviceType> ListSupportedContexts() {
+ std::vector<AVHWDeviceType> contexts{};
+ AVHWDeviceType current_device_type = AV_HWDEVICE_TYPE_NONE;
+ do {
+ current_device_type = av_hwdevice_iterate_types(current_device_type);
+ contexts.push_back(current_device_type);
+ } while (current_device_type != AV_HWDEVICE_TYPE_NONE);
+ return contexts;
+}
+
+} // namespace
+
+void AVFrameDeleter(AVFrame* ptr) {
+ av_frame_free(&ptr);
+}
+
+Codec::Codec(Host1x::Host1x& host1x_, const Host1x::NvdecCommon::NvdecRegisters& regs)
+ : host1x(host1x_), state{regs}, h264_decoder(std::make_unique<Decoder::H264>(host1x)),
+ vp8_decoder(std::make_unique<Decoder::VP8>(host1x)),
+ vp9_decoder(std::make_unique<Decoder::VP9>(host1x)) {}
+
+Codec::~Codec() {
+ if (!initialized) {
+ return;
+ }
+ // Free libav memory
+ avcodec_free_context(&av_codec_ctx);
+ av_buffer_unref(&av_gpu_decoder);
+}
+
+bool Codec::CreateGpuAvDevice() {
+ static constexpr auto HW_CONFIG_METHOD = AV_CODEC_HW_CONFIG_METHOD_HW_DEVICE_CTX;
+ static const auto supported_contexts = ListSupportedContexts();
+ for (const auto& type : PREFERRED_GPU_DECODERS) {
+ if (std::none_of(supported_contexts.begin(), supported_contexts.end(),
+ [&type](const auto& context) { return context == type; })) {
+ LOG_DEBUG(Service_NVDRV, "{} explicitly unsupported", av_hwdevice_get_type_name(type));
+ continue;
+ }
+ // Avoid memory leak from not cleaning up after av_hwdevice_ctx_create
+ av_buffer_unref(&av_gpu_decoder);
+ const int hwdevice_res = av_hwdevice_ctx_create(&av_gpu_decoder, type, nullptr, nullptr, 0);
+ if (hwdevice_res < 0) {
+ LOG_DEBUG(Service_NVDRV, "{} av_hwdevice_ctx_create failed {}",
+ av_hwdevice_get_type_name(type), hwdevice_res);
+ continue;
+ }
+#ifdef LIBVA_FOUND
+ if (type == AV_HWDEVICE_TYPE_VAAPI) {
+ // we need to determine if this is an impersonated VAAPI driver
+ AVHWDeviceContext* hwctx =
+ static_cast<AVHWDeviceContext*>(static_cast<void*>(av_gpu_decoder->data));
+ AVVAAPIDeviceContext* vactx = static_cast<AVVAAPIDeviceContext*>(hwctx->hwctx);
+ const char* vendor_name = vaQueryVendorString(vactx->display);
+ if (strstr(vendor_name, "VDPAU backend")) {
+ // VDPAU impersonated VAAPI impl's are super buggy, we need to skip them
+ LOG_DEBUG(Service_NVDRV, "Skipping vdapu impersonated VAAPI driver");
+ continue;
+ } else {
+ // according to some user testing, certain vaapi driver (Intel?) could be buggy
+ // so let's log the driver name which may help the developers/supporters
+ LOG_DEBUG(Service_NVDRV, "Using VAAPI driver: {}", vendor_name);
+ }
+ }
+#endif
+ for (int i = 0;; i++) {
+ const AVCodecHWConfig* config = avcodec_get_hw_config(av_codec, i);
+ if (!config) {
+ LOG_DEBUG(Service_NVDRV, "{} decoder does not support device type {}.",
+ av_codec->name, av_hwdevice_get_type_name(type));
+ break;
+ }
+ if ((config->methods & HW_CONFIG_METHOD) != 0 && config->device_type == type) {
+#if defined(__unix__)
+ // Some linux decoding backends are reported to crash with this config method
+ // TODO(ameerj): Properly support this method
+ if ((config->methods & AV_CODEC_HW_CONFIG_METHOD_HW_FRAMES_CTX) != 0) {
+ // skip zero-copy decoders, we don't currently support them
+ LOG_DEBUG(Service_NVDRV, "Skipping decoder {} with unsupported capability {}.",
+ av_hwdevice_get_type_name(type), config->methods);
+ continue;
+ }
+#endif
+ LOG_INFO(Service_NVDRV, "Using {} GPU decoder", av_hwdevice_get_type_name(type));
+ av_codec_ctx->pix_fmt = config->pix_fmt;
+ return true;
+ }
+ }
+ }
+ return false;
+}
+
+void Codec::InitializeAvCodecContext() {
+ av_codec_ctx = avcodec_alloc_context3(av_codec);
+ av_opt_set(av_codec_ctx->priv_data, "tune", "zerolatency", 0);
+}
+
+void Codec::InitializeGpuDecoder() {
+ if (!CreateGpuAvDevice()) {
+ av_buffer_unref(&av_gpu_decoder);
+ return;
+ }
+ auto* hw_device_ctx = av_buffer_ref(av_gpu_decoder);
+ ASSERT_MSG(hw_device_ctx, "av_buffer_ref failed");
+ av_codec_ctx->hw_device_ctx = hw_device_ctx;
+ av_codec_ctx->get_format = GetGpuFormat;
+}
+
+void Codec::Initialize() {
+ const AVCodecID codec = [&] {
+ switch (current_codec) {
+ case Host1x::NvdecCommon::VideoCodec::H264:
+ return AV_CODEC_ID_H264;
+ case Host1x::NvdecCommon::VideoCodec::VP8:
+ return AV_CODEC_ID_VP8;
+ case Host1x::NvdecCommon::VideoCodec::VP9:
+ return AV_CODEC_ID_VP9;
+ default:
+ UNIMPLEMENTED_MSG("Unknown codec {}", current_codec);
+ return AV_CODEC_ID_NONE;
+ }
+ }();
+ av_codec = avcodec_find_decoder(codec);
+
+ InitializeAvCodecContext();
+ if (Settings::values.nvdec_emulation.GetValue() == Settings::NvdecEmulation::GPU) {
+ InitializeGpuDecoder();
+ }
+ if (const int res = avcodec_open2(av_codec_ctx, av_codec, nullptr); res < 0) {
+ LOG_ERROR(Service_NVDRV, "avcodec_open2() Failed with result {}", res);
+ avcodec_free_context(&av_codec_ctx);
+ av_buffer_unref(&av_gpu_decoder);
+ return;
+ }
+ if (!av_codec_ctx->hw_device_ctx) {
+ LOG_INFO(Service_NVDRV, "Using FFmpeg software decoding");
+ }
+ initialized = true;
+}
+
+void Codec::SetTargetCodec(Host1x::NvdecCommon::VideoCodec codec) {
+ if (current_codec != codec) {
+ current_codec = codec;
+ LOG_INFO(Service_NVDRV, "NVDEC video codec initialized to {}", GetCurrentCodecName());
+ }
+}
+
+void Codec::Decode() {
+ const bool is_first_frame = !initialized;
+ if (is_first_frame) {
+ Initialize();
+ }
+ if (!initialized) {
+ return;
+ }
+ bool vp9_hidden_frame = false;
+ const auto& frame_data = [&]() {
+ switch (current_codec) {
+ case Tegra::Host1x::NvdecCommon::VideoCodec::H264:
+ return h264_decoder->ComposeFrame(state, is_first_frame);
+ case Tegra::Host1x::NvdecCommon::VideoCodec::VP8:
+ return vp8_decoder->ComposeFrame(state);
+ case Tegra::Host1x::NvdecCommon::VideoCodec::VP9:
+ vp9_decoder->ComposeFrame(state);
+ vp9_hidden_frame = vp9_decoder->WasFrameHidden();
+ return vp9_decoder->GetFrameBytes();
+ default:
+ ASSERT(false);
+ return std::vector<u8>{};
+ }
+ }();
+ AVPacketPtr packet{av_packet_alloc(), AVPacketDeleter};
+ if (!packet) {
+ LOG_ERROR(Service_NVDRV, "av_packet_alloc failed");
+ return;
+ }
+ packet->data = const_cast<u8*>(frame_data.data());
+ packet->size = static_cast<s32>(frame_data.size());
+ if (const int res = avcodec_send_packet(av_codec_ctx, packet.get()); res != 0) {
+ LOG_DEBUG(Service_NVDRV, "avcodec_send_packet error {}", res);
+ return;
+ }
+ // Only receive/store visible frames
+ if (vp9_hidden_frame) {
+ return;
+ }
+ AVFramePtr initial_frame{av_frame_alloc(), AVFrameDeleter};
+ AVFramePtr final_frame{nullptr, AVFrameDeleter};
+ ASSERT_MSG(initial_frame, "av_frame_alloc initial_frame failed");
+ if (const int ret = avcodec_receive_frame(av_codec_ctx, initial_frame.get()); ret) {
+ LOG_DEBUG(Service_NVDRV, "avcodec_receive_frame error {}", ret);
+ return;
+ }
+ if (initial_frame->width == 0 || initial_frame->height == 0) {
+ LOG_WARNING(Service_NVDRV, "Zero width or height in frame");
+ return;
+ }
+ if (av_codec_ctx->hw_device_ctx) {
+ final_frame = AVFramePtr{av_frame_alloc(), AVFrameDeleter};
+ ASSERT_MSG(final_frame, "av_frame_alloc final_frame failed");
+ // Can't use AV_PIX_FMT_YUV420P and share code with software decoding in vic.cpp
+ // because Intel drivers crash unless using AV_PIX_FMT_NV12
+ final_frame->format = PREFERRED_GPU_FMT;
+ const int ret = av_hwframe_transfer_data(final_frame.get(), initial_frame.get(), 0);
+ ASSERT_MSG(!ret, "av_hwframe_transfer_data error {}", ret);
+ } else {
+ final_frame = std::move(initial_frame);
+ }
+ if (final_frame->format != PREFERRED_CPU_FMT && final_frame->format != PREFERRED_GPU_FMT) {
+ UNIMPLEMENTED_MSG("Unexpected video format: {}", final_frame->format);
+ return;
+ }
+ av_frames.push(std::move(final_frame));
+ if (av_frames.size() > 10) {
+ LOG_TRACE(Service_NVDRV, "av_frames.push overflow dropped frame");
+ av_frames.pop();
+ }
+}
+
+AVFramePtr Codec::GetCurrentFrame() {
+ // Sometimes VIC will request more frames than have been decoded.
+ // in this case, return a nullptr and don't overwrite previous frame data
+ if (av_frames.empty()) {
+ return AVFramePtr{nullptr, AVFrameDeleter};
+ }
+ AVFramePtr frame = std::move(av_frames.front());
+ av_frames.pop();
+ return frame;
+}
+
+Host1x::NvdecCommon::VideoCodec Codec::GetCurrentCodec() const {
+ return current_codec;
+}
+
+std::string_view Codec::GetCurrentCodecName() const {
+ switch (current_codec) {
+ case Host1x::NvdecCommon::VideoCodec::None:
+ return "None";
+ case Host1x::NvdecCommon::VideoCodec::H264:
+ return "H264";
+ case Host1x::NvdecCommon::VideoCodec::VP8:
+ return "VP8";
+ case Host1x::NvdecCommon::VideoCodec::H265:
+ return "H265";
+ case Host1x::NvdecCommon::VideoCodec::VP9:
+ return "VP9";
+ default:
+ return "Unknown";
+ }
+}
+} // namespace Tegra
diff --git a/src/video_core/host1x/codecs/codec.h b/src/video_core/host1x/codecs/codec.h
new file mode 100644
index 000000000..0d45fb7fe
--- /dev/null
+++ b/src/video_core/host1x/codecs/codec.h
@@ -0,0 +1,84 @@
+// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <memory>
+#include <string_view>
+#include <queue>
+#include "common/common_types.h"
+#include "video_core/host1x/nvdec_common.h"
+
+extern "C" {
+#if defined(__GNUC__) || defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wconversion"
+#endif
+#include <libavcodec/avcodec.h>
+#if defined(__GNUC__) || defined(__clang__)
+#pragma GCC diagnostic pop
+#endif
+}
+
+namespace Tegra {
+
+void AVFrameDeleter(AVFrame* ptr);
+using AVFramePtr = std::unique_ptr<AVFrame, decltype(&AVFrameDeleter)>;
+
+namespace Decoder {
+class H264;
+class VP8;
+class VP9;
+} // namespace Decoder
+
+namespace Host1x {
+class Host1x;
+} // namespace Host1x
+
+class Codec {
+public:
+ explicit Codec(Host1x::Host1x& host1x, const Host1x::NvdecCommon::NvdecRegisters& regs);
+ ~Codec();
+
+ /// Initialize the codec, returning success or failure
+ void Initialize();
+
+ /// Sets NVDEC video stream codec
+ void SetTargetCodec(Host1x::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]] Host1x::NvdecCommon::VideoCodec GetCurrentCodec() const;
+
+ /// Return name of the current codec
+ [[nodiscard]] std::string_view GetCurrentCodecName() const;
+
+private:
+ void InitializeAvCodecContext();
+
+ void InitializeGpuDecoder();
+
+ bool CreateGpuAvDevice();
+
+ bool initialized{};
+ Host1x::NvdecCommon::VideoCodec current_codec{Host1x::NvdecCommon::VideoCodec::None};
+
+ const AVCodec* av_codec{nullptr};
+ AVCodecContext* av_codec_ctx{nullptr};
+ AVBufferRef* av_gpu_decoder{nullptr};
+
+ Host1x::Host1x& host1x;
+ const Host1x::NvdecCommon::NvdecRegisters& state;
+ std::unique_ptr<Decoder::H264> h264_decoder;
+ std::unique_ptr<Decoder::VP8> vp8_decoder;
+ std::unique_ptr<Decoder::VP9> vp9_decoder;
+
+ std::queue<AVFramePtr> av_frames{};
+};
+
+} // namespace Tegra
diff --git a/src/video_core/host1x/codecs/h264.cpp b/src/video_core/host1x/codecs/h264.cpp
new file mode 100644
index 000000000..e87bd65fa
--- /dev/null
+++ b/src/video_core/host1x/codecs/h264.cpp
@@ -0,0 +1,278 @@
+// SPDX-FileCopyrightText: Ryujinx Team and Contributors
+// SPDX-License-Identifier: MIT
+
+#include <array>
+#include <bit>
+
+#include "common/settings.h"
+#include "video_core/host1x/codecs/h264.h"
+#include "video_core/host1x/host1x.h"
+#include "video_core/memory_manager.h"
+
+namespace Tegra::Decoder {
+namespace {
+// ZigZag LUTs from libavcodec.
+constexpr std::array<u8, 64> zig_zag_direct{
+ 0, 1, 8, 16, 9, 2, 3, 10, 17, 24, 32, 25, 18, 11, 4, 5, 12, 19, 26, 33, 40, 48,
+ 41, 34, 27, 20, 13, 6, 7, 14, 21, 28, 35, 42, 49, 56, 57, 50, 43, 36, 29, 22, 15, 23,
+ 30, 37, 44, 51, 58, 59, 52, 45, 38, 31, 39, 46, 53, 60, 61, 54, 47, 55, 62, 63,
+};
+
+constexpr std::array<u8, 16> zig_zag_scan{
+ 0 + 0 * 4, 1 + 0 * 4, 0 + 1 * 4, 0 + 2 * 4, 1 + 1 * 4, 2 + 0 * 4, 3 + 0 * 4, 2 + 1 * 4,
+ 1 + 2 * 4, 0 + 3 * 4, 1 + 3 * 4, 2 + 2 * 4, 3 + 1 * 4, 3 + 2 * 4, 2 + 3 * 4, 3 + 3 * 4,
+};
+} // Anonymous namespace
+
+H264::H264(Host1x::Host1x& host1x_) : host1x{host1x_} {}
+
+H264::~H264() = default;
+
+const std::vector<u8>& H264::ComposeFrame(const Host1x::NvdecCommon::NvdecRegisters& state,
+ bool is_first_frame) {
+ H264DecoderContext context;
+ host1x.MemoryManager().ReadBlock(state.picture_info_offset, &context,
+ sizeof(H264DecoderContext));
+
+ const s64 frame_number = context.h264_parameter_set.frame_number.Value();
+ if (!is_first_frame && frame_number != 0) {
+ frame.resize(context.stream_len);
+ host1x.MemoryManager().ReadBlock(state.frame_bitstream_offset, frame.data(), frame.size());
+ return frame;
+ }
+
+ // Encode header
+ H264BitWriter writer{};
+ writer.WriteU(1, 24);
+ writer.WriteU(0, 1);
+ writer.WriteU(3, 2);
+ writer.WriteU(7, 5);
+ writer.WriteU(100, 8);
+ writer.WriteU(0, 8);
+ writer.WriteU(31, 8);
+ writer.WriteUe(0);
+ const u32 chroma_format_idc =
+ static_cast<u32>(context.h264_parameter_set.chroma_format_idc.Value());
+ writer.WriteUe(chroma_format_idc);
+ if (chroma_format_idc == 3) {
+ writer.WriteBit(false);
+ }
+
+ writer.WriteUe(0);
+ writer.WriteUe(0);
+ writer.WriteBit(false); // QpprimeYZeroTransformBypassFlag
+ writer.WriteBit(false); // Scaling matrix present flag
+
+ writer.WriteUe(static_cast<u32>(context.h264_parameter_set.log2_max_frame_num_minus4.Value()));
+
+ const auto order_cnt_type =
+ static_cast<u32>(context.h264_parameter_set.pic_order_cnt_type.Value());
+ writer.WriteUe(order_cnt_type);
+ if (order_cnt_type == 0) {
+ writer.WriteUe(context.h264_parameter_set.log2_max_pic_order_cnt_lsb_minus4);
+ } else if (order_cnt_type == 1) {
+ writer.WriteBit(context.h264_parameter_set.delta_pic_order_always_zero_flag != 0);
+
+ writer.WriteSe(0);
+ writer.WriteSe(0);
+ writer.WriteUe(0);
+ }
+
+ const s32 pic_height = context.h264_parameter_set.frame_height_in_map_units /
+ (context.h264_parameter_set.frame_mbs_only_flag ? 1 : 2);
+
+ // TODO (ameerj): Where do we get this number, it seems to be particular for each stream
+ const auto nvdec_decoding = Settings::values.nvdec_emulation.GetValue();
+ const bool uses_gpu_decoding = nvdec_decoding == Settings::NvdecEmulation::GPU;
+ const u32 max_num_ref_frames = uses_gpu_decoding ? 6u : 16u;
+ writer.WriteUe(max_num_ref_frames);
+ writer.WriteBit(false);
+ writer.WriteUe(context.h264_parameter_set.pic_width_in_mbs - 1);
+ writer.WriteUe(pic_height - 1);
+ writer.WriteBit(context.h264_parameter_set.frame_mbs_only_flag != 0);
+
+ if (!context.h264_parameter_set.frame_mbs_only_flag) {
+ writer.WriteBit(context.h264_parameter_set.flags.mbaff_frame.Value() != 0);
+ }
+
+ writer.WriteBit(context.h264_parameter_set.flags.direct_8x8_inference.Value() != 0);
+ writer.WriteBit(false); // Frame cropping flag
+ writer.WriteBit(false); // VUI parameter present flag
+
+ writer.End();
+
+ // H264 PPS
+ writer.WriteU(1, 24);
+ writer.WriteU(0, 1);
+ writer.WriteU(3, 2);
+ writer.WriteU(8, 5);
+
+ writer.WriteUe(0);
+ writer.WriteUe(0);
+
+ writer.WriteBit(context.h264_parameter_set.entropy_coding_mode_flag != 0);
+ writer.WriteBit(false);
+ writer.WriteUe(0);
+ writer.WriteUe(context.h264_parameter_set.num_refidx_l0_default_active);
+ writer.WriteUe(context.h264_parameter_set.num_refidx_l1_default_active);
+ writer.WriteBit(context.h264_parameter_set.flags.weighted_pred.Value() != 0);
+ writer.WriteU(static_cast<s32>(context.h264_parameter_set.weighted_bipred_idc.Value()), 2);
+ s32 pic_init_qp = static_cast<s32>(context.h264_parameter_set.pic_init_qp_minus26.Value());
+ writer.WriteSe(pic_init_qp);
+ writer.WriteSe(0);
+ s32 chroma_qp_index_offset =
+ static_cast<s32>(context.h264_parameter_set.chroma_qp_index_offset.Value());
+
+ writer.WriteSe(chroma_qp_index_offset);
+ writer.WriteBit(context.h264_parameter_set.deblocking_filter_control_present_flag != 0);
+ writer.WriteBit(context.h264_parameter_set.flags.constrained_intra_pred.Value() != 0);
+ writer.WriteBit(context.h264_parameter_set.redundant_pic_cnt_present_flag != 0);
+ writer.WriteBit(context.h264_parameter_set.transform_8x8_mode_flag != 0);
+
+ writer.WriteBit(true);
+
+ for (s32 index = 0; index < 6; index++) {
+ writer.WriteBit(true);
+ std::span<const u8> matrix{context.weight_scale};
+ writer.WriteScalingList(matrix, index * 16, 16);
+ }
+
+ if (context.h264_parameter_set.transform_8x8_mode_flag) {
+ for (s32 index = 0; index < 2; index++) {
+ writer.WriteBit(true);
+ std::span<const u8> matrix{context.weight_scale_8x8};
+ writer.WriteScalingList(matrix, index * 64, 64);
+ }
+ }
+
+ s32 chroma_qp_index_offset2 =
+ static_cast<s32>(context.h264_parameter_set.second_chroma_qp_index_offset.Value());
+
+ writer.WriteSe(chroma_qp_index_offset2);
+
+ writer.End();
+
+ const auto& encoded_header = writer.GetByteArray();
+ frame.resize(encoded_header.size() + context.stream_len);
+ std::memcpy(frame.data(), encoded_header.data(), encoded_header.size());
+
+ host1x.MemoryManager().ReadBlock(state.frame_bitstream_offset,
+ frame.data() + encoded_header.size(), context.stream_len);
+
+ return frame;
+}
+
+H264BitWriter::H264BitWriter() = default;
+
+H264BitWriter::~H264BitWriter() = default;
+
+void H264BitWriter::WriteU(s32 value, s32 value_sz) {
+ WriteBits(value, value_sz);
+}
+
+void H264BitWriter::WriteSe(s32 value) {
+ WriteExpGolombCodedInt(value);
+}
+
+void H264BitWriter::WriteUe(u32 value) {
+ WriteExpGolombCodedUInt(value);
+}
+
+void H264BitWriter::End() {
+ WriteBit(true);
+ Flush();
+}
+
+void H264BitWriter::WriteBit(bool state) {
+ WriteBits(state ? 1 : 0, 1);
+}
+
+void H264BitWriter::WriteScalingList(std::span<const u8> list, s32 start, s32 count) {
+ std::vector<u8> scan(count);
+ if (count == 16) {
+ std::memcpy(scan.data(), zig_zag_scan.data(), scan.size());
+ } else {
+ std::memcpy(scan.data(), zig_zag_direct.data(), scan.size());
+ }
+ u8 last_scale = 8;
+
+ for (s32 index = 0; index < count; index++) {
+ const u8 value = list[start + scan[index]];
+ const s32 delta_scale = static_cast<s32>(value - last_scale);
+
+ WriteSe(delta_scale);
+
+ last_scale = value;
+ }
+}
+
+std::vector<u8>& H264BitWriter::GetByteArray() {
+ return byte_array;
+}
+
+const std::vector<u8>& H264BitWriter::GetByteArray() const {
+ return byte_array;
+}
+
+void H264BitWriter::WriteBits(s32 value, s32 bit_count) {
+ s32 value_pos = 0;
+
+ s32 remaining = bit_count;
+
+ while (remaining > 0) {
+ s32 copy_size = remaining;
+
+ const s32 free_bits = GetFreeBufferBits();
+
+ if (copy_size > free_bits) {
+ copy_size = free_bits;
+ }
+
+ const s32 mask = (1 << copy_size) - 1;
+
+ const s32 src_shift = (bit_count - value_pos) - copy_size;
+ const s32 dst_shift = (buffer_size - buffer_pos) - copy_size;
+
+ buffer |= ((value >> src_shift) & mask) << dst_shift;
+
+ value_pos += copy_size;
+ buffer_pos += copy_size;
+ remaining -= copy_size;
+ }
+}
+
+void H264BitWriter::WriteExpGolombCodedInt(s32 value) {
+ const s32 sign = value <= 0 ? 0 : 1;
+ if (value < 0) {
+ value = -value;
+ }
+ value = (value << 1) - sign;
+ WriteExpGolombCodedUInt(value);
+}
+
+void H264BitWriter::WriteExpGolombCodedUInt(u32 value) {
+ const s32 size = 32 - std::countl_zero(value + 1);
+ WriteBits(1, size);
+
+ value -= (1U << (size - 1)) - 1;
+ WriteBits(static_cast<s32>(value), size - 1);
+}
+
+s32 H264BitWriter::GetFreeBufferBits() {
+ if (buffer_pos == buffer_size) {
+ Flush();
+ }
+
+ return buffer_size - buffer_pos;
+}
+
+void H264BitWriter::Flush() {
+ if (buffer_pos == 0) {
+ return;
+ }
+ byte_array.push_back(static_cast<u8>(buffer));
+
+ buffer = 0;
+ buffer_pos = 0;
+}
+} // namespace Tegra::Decoder
diff --git a/src/video_core/host1x/codecs/h264.h b/src/video_core/host1x/codecs/h264.h
new file mode 100644
index 000000000..5cc86454e
--- /dev/null
+++ b/src/video_core/host1x/codecs/h264.h
@@ -0,0 +1,177 @@
+// SPDX-FileCopyrightText: Ryujinx Team and Contributors
+// SPDX-License-Identifier: MIT
+
+#pragma once
+
+#include <span>
+#include <vector>
+#include "common/bit_field.h"
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "video_core/host1x/nvdec_common.h"
+
+namespace Tegra {
+
+namespace Host1x {
+class Host1x;
+} // namespace Host1x
+
+namespace Decoder {
+
+class H264BitWriter {
+public:
+ H264BitWriter();
+ ~H264BitWriter();
+
+ /// The following Write methods are based on clause 9.1 in the H.264 specification.
+ /// WriteSe and WriteUe write in the Exp-Golomb-coded syntax
+ void WriteU(s32 value, s32 value_sz);
+ void WriteSe(s32 value);
+ void WriteUe(u32 value);
+
+ /// Finalize the bitstream
+ void End();
+
+ /// append a bit to the stream, equivalent value to the state parameter
+ void WriteBit(bool state);
+
+ /// Based on section 7.3.2.1.1.1 and Table 7-4 in the H.264 specification
+ /// Writes the scaling matrices of the sream
+ void WriteScalingList(std::span<const u8> list, s32 start, s32 count);
+
+ /// Return the bitstream as a vector.
+ [[nodiscard]] std::vector<u8>& GetByteArray();
+ [[nodiscard]] const std::vector<u8>& GetByteArray() const;
+
+private:
+ void WriteBits(s32 value, s32 bit_count);
+ void WriteExpGolombCodedInt(s32 value);
+ void WriteExpGolombCodedUInt(u32 value);
+ [[nodiscard]] s32 GetFreeBufferBits();
+ void Flush();
+
+ s32 buffer_size{8};
+
+ s32 buffer{};
+ s32 buffer_pos{};
+ std::vector<u8> byte_array;
+};
+
+class H264 {
+public:
+ explicit H264(Host1x::Host1x& host1x);
+ ~H264();
+
+ /// Compose the H264 frame for FFmpeg decoding
+ [[nodiscard]] const std::vector<u8>& ComposeFrame(
+ const Host1x::NvdecCommon::NvdecRegisters& state, bool is_first_frame = false);
+
+private:
+ std::vector<u8> frame;
+ Host1x::Host1x& host1x;
+
+ struct H264ParameterSet {
+ s32 log2_max_pic_order_cnt_lsb_minus4; ///< 0x00
+ s32 delta_pic_order_always_zero_flag; ///< 0x04
+ s32 frame_mbs_only_flag; ///< 0x08
+ u32 pic_width_in_mbs; ///< 0x0C
+ u32 frame_height_in_map_units; ///< 0x10
+ union { ///< 0x14
+ BitField<0, 2, u32> tile_format;
+ BitField<2, 3, u32> gob_height;
+ };
+ u32 entropy_coding_mode_flag; ///< 0x18
+ s32 pic_order_present_flag; ///< 0x1C
+ s32 num_refidx_l0_default_active; ///< 0x20
+ s32 num_refidx_l1_default_active; ///< 0x24
+ s32 deblocking_filter_control_present_flag; ///< 0x28
+ s32 redundant_pic_cnt_present_flag; ///< 0x2C
+ u32 transform_8x8_mode_flag; ///< 0x30
+ u32 pitch_luma; ///< 0x34
+ u32 pitch_chroma; ///< 0x38
+ u32 luma_top_offset; ///< 0x3C
+ u32 luma_bot_offset; ///< 0x40
+ u32 luma_frame_offset; ///< 0x44
+ u32 chroma_top_offset; ///< 0x48
+ u32 chroma_bot_offset; ///< 0x4C
+ u32 chroma_frame_offset; ///< 0x50
+ u32 hist_buffer_size; ///< 0x54
+ union { ///< 0x58
+ union {
+ BitField<0, 1, u64> mbaff_frame;
+ BitField<1, 1, u64> direct_8x8_inference;
+ BitField<2, 1, u64> weighted_pred;
+ BitField<3, 1, u64> constrained_intra_pred;
+ BitField<4, 1, u64> ref_pic;
+ BitField<5, 1, u64> field_pic;
+ BitField<6, 1, u64> bottom_field;
+ BitField<7, 1, u64> second_field;
+ } flags;
+ BitField<8, 4, u64> log2_max_frame_num_minus4;
+ BitField<12, 2, u64> chroma_format_idc;
+ BitField<14, 2, u64> pic_order_cnt_type;
+ BitField<16, 6, s64> pic_init_qp_minus26;
+ BitField<22, 5, s64> chroma_qp_index_offset;
+ BitField<27, 5, s64> second_chroma_qp_index_offset;
+ BitField<32, 2, u64> weighted_bipred_idc;
+ BitField<34, 7, u64> curr_pic_idx;
+ BitField<41, 5, u64> curr_col_idx;
+ BitField<46, 16, u64> frame_number;
+ BitField<62, 1, u64> frame_surfaces;
+ BitField<63, 1, u64> output_memory_layout;
+ };
+ };
+ static_assert(sizeof(H264ParameterSet) == 0x60, "H264ParameterSet is an invalid size");
+
+ struct H264DecoderContext {
+ INSERT_PADDING_WORDS_NOINIT(18); ///< 0x0000
+ u32 stream_len; ///< 0x0048
+ INSERT_PADDING_WORDS_NOINIT(3); ///< 0x004C
+ H264ParameterSet h264_parameter_set; ///< 0x0058
+ INSERT_PADDING_WORDS_NOINIT(66); ///< 0x00B8
+ std::array<u8, 0x60> weight_scale; ///< 0x01C0
+ std::array<u8, 0x80> weight_scale_8x8; ///< 0x0220
+ };
+ static_assert(sizeof(H264DecoderContext) == 0x2A0, "H264DecoderContext is an invalid size");
+
+#define ASSERT_POSITION(field_name, position) \
+ static_assert(offsetof(H264ParameterSet, field_name) == position, \
+ "Field " #field_name " has invalid position")
+
+ ASSERT_POSITION(log2_max_pic_order_cnt_lsb_minus4, 0x00);
+ ASSERT_POSITION(delta_pic_order_always_zero_flag, 0x04);
+ ASSERT_POSITION(frame_mbs_only_flag, 0x08);
+ ASSERT_POSITION(pic_width_in_mbs, 0x0C);
+ ASSERT_POSITION(frame_height_in_map_units, 0x10);
+ ASSERT_POSITION(tile_format, 0x14);
+ ASSERT_POSITION(entropy_coding_mode_flag, 0x18);
+ ASSERT_POSITION(pic_order_present_flag, 0x1C);
+ ASSERT_POSITION(num_refidx_l0_default_active, 0x20);
+ ASSERT_POSITION(num_refidx_l1_default_active, 0x24);
+ ASSERT_POSITION(deblocking_filter_control_present_flag, 0x28);
+ ASSERT_POSITION(redundant_pic_cnt_present_flag, 0x2C);
+ ASSERT_POSITION(transform_8x8_mode_flag, 0x30);
+ ASSERT_POSITION(pitch_luma, 0x34);
+ ASSERT_POSITION(pitch_chroma, 0x38);
+ ASSERT_POSITION(luma_top_offset, 0x3C);
+ ASSERT_POSITION(luma_bot_offset, 0x40);
+ ASSERT_POSITION(luma_frame_offset, 0x44);
+ ASSERT_POSITION(chroma_top_offset, 0x48);
+ ASSERT_POSITION(chroma_bot_offset, 0x4C);
+ ASSERT_POSITION(chroma_frame_offset, 0x50);
+ ASSERT_POSITION(hist_buffer_size, 0x54);
+ ASSERT_POSITION(flags, 0x58);
+#undef ASSERT_POSITION
+
+#define ASSERT_POSITION(field_name, position) \
+ static_assert(offsetof(H264DecoderContext, field_name) == position, \
+ "Field " #field_name " has invalid position")
+
+ ASSERT_POSITION(stream_len, 0x48);
+ ASSERT_POSITION(h264_parameter_set, 0x58);
+ ASSERT_POSITION(weight_scale, 0x1C0);
+#undef ASSERT_POSITION
+};
+
+} // namespace Decoder
+} // namespace Tegra
diff --git a/src/video_core/host1x/codecs/vp8.cpp b/src/video_core/host1x/codecs/vp8.cpp
new file mode 100644
index 000000000..28fb12cb8
--- /dev/null
+++ b/src/video_core/host1x/codecs/vp8.cpp
@@ -0,0 +1,53 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <vector>
+
+#include "video_core/host1x/codecs/vp8.h"
+#include "video_core/host1x/host1x.h"
+#include "video_core/memory_manager.h"
+
+namespace Tegra::Decoder {
+VP8::VP8(Host1x::Host1x& host1x_) : host1x{host1x_} {}
+
+VP8::~VP8() = default;
+
+const std::vector<u8>& VP8::ComposeFrame(const Host1x::NvdecCommon::NvdecRegisters& state) {
+ VP8PictureInfo info;
+ host1x.MemoryManager().ReadBlock(state.picture_info_offset, &info, sizeof(VP8PictureInfo));
+
+ const bool is_key_frame = info.key_frame == 1u;
+ const auto bitstream_size = static_cast<size_t>(info.vld_buffer_size);
+ const size_t header_size = is_key_frame ? 10u : 3u;
+ frame.resize(header_size + bitstream_size);
+
+ // Based on page 30 of the VP8 specification.
+ // https://datatracker.ietf.org/doc/rfc6386/
+ frame[0] = is_key_frame ? 0u : 1u; // 1-bit frame type (0: keyframe, 1: interframes).
+ frame[0] |= static_cast<u8>((info.version & 7u) << 1u); // 3-bit version number
+ frame[0] |= static_cast<u8>(1u << 4u); // 1-bit show_frame flag
+
+ // The next 19-bits are the first partition size
+ frame[0] |= static_cast<u8>((info.first_part_size & 7u) << 5u);
+ frame[1] = static_cast<u8>((info.first_part_size & 0x7f8u) >> 3u);
+ frame[2] = static_cast<u8>((info.first_part_size & 0x7f800u) >> 11u);
+
+ if (is_key_frame) {
+ frame[3] = 0x9du;
+ frame[4] = 0x01u;
+ frame[5] = 0x2au;
+ // TODO(ameerj): Horizontal/Vertical Scale
+ // 16 bits: (2 bits Horizontal Scale << 14) | Width (14 bits)
+ frame[6] = static_cast<u8>(info.frame_width & 0xff);
+ frame[7] = static_cast<u8>(((info.frame_width >> 8) & 0x3f));
+ // 16 bits:(2 bits Vertical Scale << 14) | Height (14 bits)
+ frame[8] = static_cast<u8>(info.frame_height & 0xff);
+ frame[9] = static_cast<u8>(((info.frame_height >> 8) & 0x3f));
+ }
+ const u64 bitstream_offset = state.frame_bitstream_offset;
+ host1x.MemoryManager().ReadBlock(bitstream_offset, frame.data() + header_size, bitstream_size);
+
+ return frame;
+}
+
+} // namespace Tegra::Decoder
diff --git a/src/video_core/host1x/codecs/vp8.h b/src/video_core/host1x/codecs/vp8.h
new file mode 100644
index 000000000..5bf07ecab
--- /dev/null
+++ b/src/video_core/host1x/codecs/vp8.h
@@ -0,0 +1,78 @@
+// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <vector>
+
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+#include "video_core/host1x/nvdec_common.h"
+
+namespace Tegra {
+
+namespace Host1x {
+class Host1x;
+} // namespace Host1x
+
+namespace Decoder {
+
+class VP8 {
+public:
+ explicit VP8(Host1x::Host1x& host1x);
+ ~VP8();
+
+ /// Compose the VP8 frame for FFmpeg decoding
+ [[nodiscard]] const std::vector<u8>& ComposeFrame(
+ const Host1x::NvdecCommon::NvdecRegisters& state);
+
+private:
+ std::vector<u8> frame;
+ Host1x::Host1x& host1x;
+
+ struct VP8PictureInfo {
+ INSERT_PADDING_WORDS_NOINIT(14);
+ u16 frame_width; // actual frame width
+ u16 frame_height; // actual frame height
+ u8 key_frame;
+ u8 version;
+ union {
+ u8 raw;
+ BitField<0, 2, u8> tile_format;
+ BitField<2, 3, u8> gob_height;
+ BitField<5, 3, u8> reserverd_surface_format;
+ };
+ u8 error_conceal_on; // 1: error conceal on; 0: off
+ u32 first_part_size; // the size of first partition(frame header and mb header partition)
+ u32 hist_buffer_size; // in units of 256
+ u32 vld_buffer_size; // in units of 1
+ // Current frame buffers
+ std::array<u32, 2> frame_stride; // [y_c]
+ u32 luma_top_offset; // offset of luma top field in units of 256
+ u32 luma_bot_offset; // offset of luma bottom field in units of 256
+ u32 luma_frame_offset; // offset of luma frame in units of 256
+ u32 chroma_top_offset; // offset of chroma top field in units of 256
+ u32 chroma_bot_offset; // offset of chroma bottom field in units of 256
+ u32 chroma_frame_offset; // offset of chroma frame in units of 256
+
+ INSERT_PADDING_BYTES_NOINIT(0x1c); // NvdecDisplayParams
+
+ // Decode picture buffer related
+ s8 current_output_memory_layout;
+ // output NV12/NV24 setting. index 0: golden; 1: altref; 2: last
+ std::array<s8, 3> output_memory_layout;
+
+ u8 segmentation_feature_data_update;
+ INSERT_PADDING_BYTES_NOINIT(3);
+
+ // ucode return result
+ u32 result_value;
+ std::array<u32, 8> partition_offset;
+ INSERT_PADDING_WORDS_NOINIT(3);
+ };
+ static_assert(sizeof(VP8PictureInfo) == 0xc0, "PictureInfo is an invalid size");
+};
+
+} // namespace Decoder
+} // namespace Tegra
diff --git a/src/video_core/host1x/codecs/vp9.cpp b/src/video_core/host1x/codecs/vp9.cpp
new file mode 100644
index 000000000..cf40c9012
--- /dev/null
+++ b/src/video_core/host1x/codecs/vp9.cpp
@@ -0,0 +1,947 @@
+// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include <algorithm> // for std::copy
+#include <numeric>
+#include "common/assert.h"
+#include "video_core/host1x/codecs/vp9.h"
+#include "video_core/host1x/host1x.h"
+#include "video_core/memory_manager.h"
+
+namespace Tegra::Decoder {
+namespace {
+constexpr u32 diff_update_probability = 252;
+constexpr u32 frame_sync_code = 0x498342;
+
+// Default compressed header probabilities once frame context resets
+constexpr Vp9EntropyProbs default_probs{
+ .y_mode_prob{
+ 65, 32, 18, 144, 162, 194, 41, 51, 98, 132, 68, 18, 165, 217, 196, 45, 40, 78,
+ 173, 80, 19, 176, 240, 193, 64, 35, 46, 221, 135, 38, 194, 248, 121, 96, 85, 29,
+ },
+ .partition_prob{
+ 199, 122, 141, 0, 147, 63, 159, 0, 148, 133, 118, 0, 121, 104, 114, 0,
+ 174, 73, 87, 0, 92, 41, 83, 0, 82, 99, 50, 0, 53, 39, 39, 0,
+ 177, 58, 59, 0, 68, 26, 63, 0, 52, 79, 25, 0, 17, 14, 12, 0,
+ 222, 34, 30, 0, 72, 16, 44, 0, 58, 32, 12, 0, 10, 7, 6, 0,
+ },
+ .coef_probs{
+ 195, 29, 183, 84, 49, 136, 8, 42, 71, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 31, 107, 169, 35, 99, 159, 17, 82, 140, 8, 66, 114, 2, 44, 76, 1, 19, 32,
+ 40, 132, 201, 29, 114, 187, 13, 91, 157, 7, 75, 127, 3, 58, 95, 1, 28, 47,
+ 69, 142, 221, 42, 122, 201, 15, 91, 159, 6, 67, 121, 1, 42, 77, 1, 17, 31,
+ 102, 148, 228, 67, 117, 204, 17, 82, 154, 6, 59, 114, 2, 39, 75, 1, 15, 29,
+ 156, 57, 233, 119, 57, 212, 58, 48, 163, 29, 40, 124, 12, 30, 81, 3, 12, 31,
+ 191, 107, 226, 124, 117, 204, 25, 99, 155, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 29, 148, 210, 37, 126, 194, 8, 93, 157, 2, 68, 118, 1, 39, 69, 1, 17, 33,
+ 41, 151, 213, 27, 123, 193, 3, 82, 144, 1, 58, 105, 1, 32, 60, 1, 13, 26,
+ 59, 159, 220, 23, 126, 198, 4, 88, 151, 1, 66, 114, 1, 38, 71, 1, 18, 34,
+ 114, 136, 232, 51, 114, 207, 11, 83, 155, 3, 56, 105, 1, 33, 65, 1, 17, 34,
+ 149, 65, 234, 121, 57, 215, 61, 49, 166, 28, 36, 114, 12, 25, 76, 3, 16, 42,
+ 214, 49, 220, 132, 63, 188, 42, 65, 137, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 85, 137, 221, 104, 131, 216, 49, 111, 192, 21, 87, 155, 2, 49, 87, 1, 16, 28,
+ 89, 163, 230, 90, 137, 220, 29, 100, 183, 10, 70, 135, 2, 42, 81, 1, 17, 33,
+ 108, 167, 237, 55, 133, 222, 15, 97, 179, 4, 72, 135, 1, 45, 85, 1, 19, 38,
+ 124, 146, 240, 66, 124, 224, 17, 88, 175, 4, 58, 122, 1, 36, 75, 1, 18, 37,
+ 141, 79, 241, 126, 70, 227, 66, 58, 182, 30, 44, 136, 12, 34, 96, 2, 20, 47,
+ 229, 99, 249, 143, 111, 235, 46, 109, 192, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 82, 158, 236, 94, 146, 224, 25, 117, 191, 9, 87, 149, 3, 56, 99, 1, 33, 57,
+ 83, 167, 237, 68, 145, 222, 10, 103, 177, 2, 72, 131, 1, 41, 79, 1, 20, 39,
+ 99, 167, 239, 47, 141, 224, 10, 104, 178, 2, 73, 133, 1, 44, 85, 1, 22, 47,
+ 127, 145, 243, 71, 129, 228, 17, 93, 177, 3, 61, 124, 1, 41, 84, 1, 21, 52,
+ 157, 78, 244, 140, 72, 231, 69, 58, 184, 31, 44, 137, 14, 38, 105, 8, 23, 61,
+ 125, 34, 187, 52, 41, 133, 6, 31, 56, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 37, 109, 153, 51, 102, 147, 23, 87, 128, 8, 67, 101, 1, 41, 63, 1, 19, 29,
+ 31, 154, 185, 17, 127, 175, 6, 96, 145, 2, 73, 114, 1, 51, 82, 1, 28, 45,
+ 23, 163, 200, 10, 131, 185, 2, 93, 148, 1, 67, 111, 1, 41, 69, 1, 14, 24,
+ 29, 176, 217, 12, 145, 201, 3, 101, 156, 1, 69, 111, 1, 39, 63, 1, 14, 23,
+ 57, 192, 233, 25, 154, 215, 6, 109, 167, 3, 78, 118, 1, 48, 69, 1, 21, 29,
+ 202, 105, 245, 108, 106, 216, 18, 90, 144, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 33, 172, 219, 64, 149, 206, 14, 117, 177, 5, 90, 141, 2, 61, 95, 1, 37, 57,
+ 33, 179, 220, 11, 140, 198, 1, 89, 148, 1, 60, 104, 1, 33, 57, 1, 12, 21,
+ 30, 181, 221, 8, 141, 198, 1, 87, 145, 1, 58, 100, 1, 31, 55, 1, 12, 20,
+ 32, 186, 224, 7, 142, 198, 1, 86, 143, 1, 58, 100, 1, 31, 55, 1, 12, 22,
+ 57, 192, 227, 20, 143, 204, 3, 96, 154, 1, 68, 112, 1, 42, 69, 1, 19, 32,
+ 212, 35, 215, 113, 47, 169, 29, 48, 105, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 74, 129, 203, 106, 120, 203, 49, 107, 178, 19, 84, 144, 4, 50, 84, 1, 15, 25,
+ 71, 172, 217, 44, 141, 209, 15, 102, 173, 6, 76, 133, 2, 51, 89, 1, 24, 42,
+ 64, 185, 231, 31, 148, 216, 8, 103, 175, 3, 74, 131, 1, 46, 81, 1, 18, 30,
+ 65, 196, 235, 25, 157, 221, 5, 105, 174, 1, 67, 120, 1, 38, 69, 1, 15, 30,
+ 65, 204, 238, 30, 156, 224, 7, 107, 177, 2, 70, 124, 1, 42, 73, 1, 18, 34,
+ 225, 86, 251, 144, 104, 235, 42, 99, 181, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 85, 175, 239, 112, 165, 229, 29, 136, 200, 12, 103, 162, 6, 77, 123, 2, 53, 84,
+ 75, 183, 239, 30, 155, 221, 3, 106, 171, 1, 74, 128, 1, 44, 76, 1, 17, 28,
+ 73, 185, 240, 27, 159, 222, 2, 107, 172, 1, 75, 127, 1, 42, 73, 1, 17, 29,
+ 62, 190, 238, 21, 159, 222, 2, 107, 172, 1, 72, 122, 1, 40, 71, 1, 18, 32,
+ 61, 199, 240, 27, 161, 226, 4, 113, 180, 1, 76, 129, 1, 46, 80, 1, 23, 41,
+ 7, 27, 153, 5, 30, 95, 1, 16, 30, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 50, 75, 127, 57, 75, 124, 27, 67, 108, 10, 54, 86, 1, 33, 52, 1, 12, 18,
+ 43, 125, 151, 26, 108, 148, 7, 83, 122, 2, 59, 89, 1, 38, 60, 1, 17, 27,
+ 23, 144, 163, 13, 112, 154, 2, 75, 117, 1, 50, 81, 1, 31, 51, 1, 14, 23,
+ 18, 162, 185, 6, 123, 171, 1, 78, 125, 1, 51, 86, 1, 31, 54, 1, 14, 23,
+ 15, 199, 227, 3, 150, 204, 1, 91, 146, 1, 55, 95, 1, 30, 53, 1, 11, 20,
+ 19, 55, 240, 19, 59, 196, 3, 52, 105, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 41, 166, 207, 104, 153, 199, 31, 123, 181, 14, 101, 152, 5, 72, 106, 1, 36, 52,
+ 35, 176, 211, 12, 131, 190, 2, 88, 144, 1, 60, 101, 1, 36, 60, 1, 16, 28,
+ 28, 183, 213, 8, 134, 191, 1, 86, 142, 1, 56, 96, 1, 30, 53, 1, 12, 20,
+ 20, 190, 215, 4, 135, 192, 1, 84, 139, 1, 53, 91, 1, 28, 49, 1, 11, 20,
+ 13, 196, 216, 2, 137, 192, 1, 86, 143, 1, 57, 99, 1, 32, 56, 1, 13, 24,
+ 211, 29, 217, 96, 47, 156, 22, 43, 87, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 78, 120, 193, 111, 116, 186, 46, 102, 164, 15, 80, 128, 2, 49, 76, 1, 18, 28,
+ 71, 161, 203, 42, 132, 192, 10, 98, 150, 3, 69, 109, 1, 44, 70, 1, 18, 29,
+ 57, 186, 211, 30, 140, 196, 4, 93, 146, 1, 62, 102, 1, 38, 65, 1, 16, 27,
+ 47, 199, 217, 14, 145, 196, 1, 88, 142, 1, 57, 98, 1, 36, 62, 1, 15, 26,
+ 26, 219, 229, 5, 155, 207, 1, 94, 151, 1, 60, 104, 1, 36, 62, 1, 16, 28,
+ 233, 29, 248, 146, 47, 220, 43, 52, 140, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 100, 163, 232, 179, 161, 222, 63, 142, 204, 37, 113, 174, 26, 89, 137, 18, 68, 97,
+ 85, 181, 230, 32, 146, 209, 7, 100, 164, 3, 71, 121, 1, 45, 77, 1, 18, 30,
+ 65, 187, 230, 20, 148, 207, 2, 97, 159, 1, 68, 116, 1, 40, 70, 1, 14, 29,
+ 40, 194, 227, 8, 147, 204, 1, 94, 155, 1, 65, 112, 1, 39, 66, 1, 14, 26,
+ 16, 208, 228, 3, 151, 207, 1, 98, 160, 1, 67, 117, 1, 41, 74, 1, 17, 31,
+ 17, 38, 140, 7, 34, 80, 1, 17, 29, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 37, 75, 128, 41, 76, 128, 26, 66, 116, 12, 52, 94, 2, 32, 55, 1, 10, 16,
+ 50, 127, 154, 37, 109, 152, 16, 82, 121, 5, 59, 85, 1, 35, 54, 1, 13, 20,
+ 40, 142, 167, 17, 110, 157, 2, 71, 112, 1, 44, 72, 1, 27, 45, 1, 11, 17,
+ 30, 175, 188, 9, 124, 169, 1, 74, 116, 1, 48, 78, 1, 30, 49, 1, 11, 18,
+ 10, 222, 223, 2, 150, 194, 1, 83, 128, 1, 48, 79, 1, 27, 45, 1, 11, 17,
+ 36, 41, 235, 29, 36, 193, 10, 27, 111, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 85, 165, 222, 177, 162, 215, 110, 135, 195, 57, 113, 168, 23, 83, 120, 10, 49, 61,
+ 85, 190, 223, 36, 139, 200, 5, 90, 146, 1, 60, 103, 1, 38, 65, 1, 18, 30,
+ 72, 202, 223, 23, 141, 199, 2, 86, 140, 1, 56, 97, 1, 36, 61, 1, 16, 27,
+ 55, 218, 225, 13, 145, 200, 1, 86, 141, 1, 57, 99, 1, 35, 61, 1, 13, 22,
+ 15, 235, 212, 1, 132, 184, 1, 84, 139, 1, 57, 97, 1, 34, 56, 1, 14, 23,
+ 181, 21, 201, 61, 37, 123, 10, 38, 71, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 47, 106, 172, 95, 104, 173, 42, 93, 159, 18, 77, 131, 4, 50, 81, 1, 17, 23,
+ 62, 147, 199, 44, 130, 189, 28, 102, 154, 18, 75, 115, 2, 44, 65, 1, 12, 19,
+ 55, 153, 210, 24, 130, 194, 3, 93, 146, 1, 61, 97, 1, 31, 50, 1, 10, 16,
+ 49, 186, 223, 17, 148, 204, 1, 96, 142, 1, 53, 83, 1, 26, 44, 1, 11, 17,
+ 13, 217, 212, 2, 136, 180, 1, 78, 124, 1, 50, 83, 1, 29, 49, 1, 14, 23,
+ 197, 13, 247, 82, 17, 222, 25, 17, 162, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 126, 186, 247, 234, 191, 243, 176, 177, 234, 104, 158, 220, 66, 128, 186, 55, 90, 137,
+ 111, 197, 242, 46, 158, 219, 9, 104, 171, 2, 65, 125, 1, 44, 80, 1, 17, 91,
+ 104, 208, 245, 39, 168, 224, 3, 109, 162, 1, 79, 124, 1, 50, 102, 1, 43, 102,
+ 84, 220, 246, 31, 177, 231, 2, 115, 180, 1, 79, 134, 1, 55, 77, 1, 60, 79,
+ 43, 243, 240, 8, 180, 217, 1, 115, 166, 1, 84, 121, 1, 51, 67, 1, 16, 6,
+ },
+ .switchable_interp_prob{235, 162, 36, 255, 34, 3, 149, 144},
+ .inter_mode_prob{
+ 2, 173, 34, 0, 7, 145, 85, 0, 7, 166, 63, 0, 7, 94,
+ 66, 0, 8, 64, 46, 0, 17, 81, 31, 0, 25, 29, 30, 0,
+ },
+ .intra_inter_prob{9, 102, 187, 225},
+ .comp_inter_prob{9, 102, 187, 225, 0},
+ .single_ref_prob{33, 16, 77, 74, 142, 142, 172, 170, 238, 247},
+ .comp_ref_prob{50, 126, 123, 221, 226},
+ .tx_32x32_prob{3, 136, 37, 5, 52, 13},
+ .tx_16x16_prob{20, 152, 15, 101},
+ .tx_8x8_prob{100, 66},
+ .skip_probs{192, 128, 64},
+ .joints{32, 64, 96},
+ .sign{128, 128},
+ .classes{
+ 224, 144, 192, 168, 192, 176, 192, 198, 198, 245,
+ 216, 128, 176, 160, 176, 176, 192, 198, 198, 208,
+ },
+ .class_0{216, 208},
+ .prob_bits{
+ 136, 140, 148, 160, 176, 192, 224, 234, 234, 240,
+ 136, 140, 148, 160, 176, 192, 224, 234, 234, 240,
+ },
+ .class_0_fr{128, 128, 64, 96, 112, 64, 128, 128, 64, 96, 112, 64},
+ .fr{64, 96, 64, 64, 96, 64},
+ .class_0_hp{160, 160},
+ .high_precision{128, 128},
+};
+
+constexpr std::array<u8, 256> norm_lut{
+ 0, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+ 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+};
+
+constexpr std::array<u8, 254> map_lut{
+ 20, 21, 22, 23, 24, 25, 0, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
+ 1, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 2, 50, 51, 52, 53, 54,
+ 55, 56, 57, 58, 59, 60, 61, 3, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72,
+ 73, 4, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 5, 86, 87, 88, 89,
+ 90, 91, 92, 93, 94, 95, 96, 97, 6, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107,
+ 108, 109, 7, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 8, 122, 123, 124,
+ 125, 126, 127, 128, 129, 130, 131, 132, 133, 9, 134, 135, 136, 137, 138, 139, 140, 141, 142,
+ 143, 144, 145, 10, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 11, 158, 159,
+ 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 12, 170, 171, 172, 173, 174, 175, 176, 177,
+ 178, 179, 180, 181, 13, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 14, 194,
+ 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 15, 206, 207, 208, 209, 210, 211, 212,
+ 213, 214, 215, 216, 217, 16, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 17,
+ 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 18, 242, 243, 244, 245, 246, 247,
+ 248, 249, 250, 251, 252, 253, 19,
+};
+
+// 6.2.14 Tile size calculation
+
+[[nodiscard]] s32 CalcMinLog2TileCols(s32 frame_width) {
+ const s32 sb64_cols = (frame_width + 63) / 64;
+ s32 min_log2 = 0;
+
+ while ((64 << min_log2) < sb64_cols) {
+ min_log2++;
+ }
+
+ return min_log2;
+}
+
+[[nodiscard]] s32 CalcMaxLog2TileCols(s32 frame_width) {
+ const s32 sb64_cols = (frame_width + 63) / 64;
+ s32 max_log2 = 1;
+
+ while ((sb64_cols >> max_log2) >= 4) {
+ max_log2++;
+ }
+
+ return max_log2 - 1;
+}
+
+// Recenters probability. Based on section 6.3.6 of VP9 Specification
+[[nodiscard]] s32 RecenterNonNeg(s32 new_prob, s32 old_prob) {
+ if (new_prob > old_prob * 2) {
+ return new_prob;
+ }
+
+ if (new_prob >= old_prob) {
+ return (new_prob - old_prob) * 2;
+ }
+
+ return (old_prob - new_prob) * 2 - 1;
+}
+
+// Adjusts old_prob depending on new_prob. Based on section 6.3.5 of VP9 Specification
+[[nodiscard]] s32 RemapProbability(s32 new_prob, s32 old_prob) {
+ new_prob--;
+ old_prob--;
+
+ std::size_t index{};
+
+ if (old_prob * 2 <= 0xff) {
+ index = static_cast<std::size_t>(std::max(0, RecenterNonNeg(new_prob, old_prob) - 1));
+ } else {
+ index = static_cast<std::size_t>(
+ std::max(0, RecenterNonNeg(0xff - 1 - new_prob, 0xff - 1 - old_prob) - 1));
+ }
+
+ return static_cast<s32>(map_lut[index]);
+}
+} // Anonymous namespace
+
+VP9::VP9(Host1x::Host1x& host1x_) : host1x{host1x_} {}
+
+VP9::~VP9() = default;
+
+void VP9::WriteProbabilityUpdate(VpxRangeEncoder& writer, u8 new_prob, u8 old_prob) {
+ const bool update = new_prob != old_prob;
+
+ writer.Write(update, diff_update_probability);
+
+ if (update) {
+ WriteProbabilityDelta(writer, new_prob, old_prob);
+ }
+}
+template <typename T, std::size_t N>
+void VP9::WriteProbabilityUpdate(VpxRangeEncoder& writer, const std::array<T, N>& new_prob,
+ const std::array<T, N>& old_prob) {
+ for (std::size_t offset = 0; offset < new_prob.size(); ++offset) {
+ WriteProbabilityUpdate(writer, new_prob[offset], old_prob[offset]);
+ }
+}
+
+template <typename T, std::size_t N>
+void VP9::WriteProbabilityUpdateAligned4(VpxRangeEncoder& writer, const std::array<T, N>& new_prob,
+ const std::array<T, N>& old_prob) {
+ for (std::size_t offset = 0; offset < new_prob.size(); offset += 4) {
+ WriteProbabilityUpdate(writer, new_prob[offset + 0], old_prob[offset + 0]);
+ WriteProbabilityUpdate(writer, new_prob[offset + 1], old_prob[offset + 1]);
+ WriteProbabilityUpdate(writer, new_prob[offset + 2], old_prob[offset + 2]);
+ }
+}
+
+void VP9::WriteProbabilityDelta(VpxRangeEncoder& writer, u8 new_prob, u8 old_prob) {
+ const int delta = RemapProbability(new_prob, old_prob);
+
+ EncodeTermSubExp(writer, delta);
+}
+
+void VP9::EncodeTermSubExp(VpxRangeEncoder& writer, s32 value) {
+ if (WriteLessThan(writer, value, 16)) {
+ writer.Write(value, 4);
+ } else if (WriteLessThan(writer, value, 32)) {
+ writer.Write(value - 16, 4);
+ } else if (WriteLessThan(writer, value, 64)) {
+ writer.Write(value - 32, 5);
+ } else {
+ value -= 64;
+
+ constexpr s32 size = 8;
+
+ const s32 mask = (1 << size) - 191;
+
+ const s32 delta = value - mask;
+
+ if (delta < 0) {
+ writer.Write(value, size - 1);
+ } else {
+ writer.Write(delta / 2 + mask, size - 1);
+ writer.Write(delta & 1, 1);
+ }
+ }
+}
+
+bool VP9::WriteLessThan(VpxRangeEncoder& writer, s32 value, s32 test) {
+ const bool is_lt = value < test;
+ writer.Write(!is_lt);
+ return is_lt;
+}
+
+void VP9::WriteCoefProbabilityUpdate(VpxRangeEncoder& writer, s32 tx_mode,
+ const std::array<u8, 1728>& new_prob,
+ const std::array<u8, 1728>& old_prob) {
+ constexpr u32 block_bytes = 2 * 2 * 6 * 6 * 3;
+
+ const auto needs_update = [&](u32 base_index) {
+ return !std::equal(new_prob.begin() + base_index,
+ new_prob.begin() + base_index + block_bytes,
+ old_prob.begin() + base_index);
+ };
+
+ for (u32 block_index = 0; block_index < 4; block_index++) {
+ const u32 base_index = block_index * block_bytes;
+ const bool update = needs_update(base_index);
+ writer.Write(update);
+
+ if (update) {
+ u32 index = base_index;
+ for (s32 i = 0; i < 2; i++) {
+ for (s32 j = 0; j < 2; j++) {
+ for (s32 k = 0; k < 6; k++) {
+ for (s32 l = 0; l < 6; l++) {
+ if (k != 0 || l < 3) {
+ WriteProbabilityUpdate(writer, new_prob[index + 0],
+ old_prob[index + 0]);
+ WriteProbabilityUpdate(writer, new_prob[index + 1],
+ old_prob[index + 1]);
+ WriteProbabilityUpdate(writer, new_prob[index + 2],
+ old_prob[index + 2]);
+ }
+ index += 3;
+ }
+ }
+ }
+ }
+ }
+ if (block_index == static_cast<u32>(tx_mode)) {
+ break;
+ }
+ }
+}
+
+void VP9::WriteMvProbabilityUpdate(VpxRangeEncoder& writer, u8 new_prob, u8 old_prob) {
+ const bool update = new_prob != old_prob;
+ writer.Write(update, diff_update_probability);
+
+ if (update) {
+ writer.Write(new_prob >> 1, 7);
+ }
+}
+
+Vp9PictureInfo VP9::GetVp9PictureInfo(const Host1x::NvdecCommon::NvdecRegisters& state) {
+ PictureInfo picture_info;
+ host1x.MemoryManager().ReadBlock(state.picture_info_offset, &picture_info, sizeof(PictureInfo));
+ Vp9PictureInfo vp9_info = picture_info.Convert();
+
+ InsertEntropy(state.vp9_entropy_probs_offset, vp9_info.entropy);
+
+ // surface_luma_offset[0:3] contains the address of the reference frame offsets in the following
+ // order: last, golden, altref, current.
+ std::copy(state.surface_luma_offset.begin(), state.surface_luma_offset.begin() + 4,
+ vp9_info.frame_offsets.begin());
+
+ return vp9_info;
+}
+
+void VP9::InsertEntropy(u64 offset, Vp9EntropyProbs& dst) {
+ EntropyProbs entropy;
+ host1x.MemoryManager().ReadBlock(offset, &entropy, sizeof(EntropyProbs));
+ entropy.Convert(dst);
+}
+
+Vp9FrameContainer VP9::GetCurrentFrame(const Host1x::NvdecCommon::NvdecRegisters& state) {
+ Vp9FrameContainer current_frame{};
+ {
+ // gpu.SyncGuestHost(); epic, why?
+ current_frame.info = GetVp9PictureInfo(state);
+ current_frame.bit_stream.resize(current_frame.info.bitstream_size);
+ host1x.MemoryManager().ReadBlock(state.frame_bitstream_offset,
+ current_frame.bit_stream.data(),
+ current_frame.info.bitstream_size);
+ }
+ if (!next_frame.bit_stream.empty()) {
+ Vp9FrameContainer temp{
+ .info = current_frame.info,
+ .bit_stream = std::move(current_frame.bit_stream),
+ };
+ next_frame.info.show_frame = current_frame.info.last_frame_shown;
+ current_frame.info = next_frame.info;
+ current_frame.bit_stream = std::move(next_frame.bit_stream);
+ next_frame = std::move(temp);
+ } else {
+ next_frame.info = current_frame.info;
+ next_frame.bit_stream = current_frame.bit_stream;
+ }
+ return current_frame;
+}
+
+std::vector<u8> VP9::ComposeCompressedHeader() {
+ VpxRangeEncoder writer{};
+ const bool update_probs = !current_frame_info.is_key_frame && current_frame_info.show_frame;
+ if (!current_frame_info.lossless) {
+ if (static_cast<u32>(current_frame_info.transform_mode) >= 3) {
+ writer.Write(3, 2);
+ writer.Write(current_frame_info.transform_mode == 4);
+ } else {
+ writer.Write(current_frame_info.transform_mode, 2);
+ }
+ }
+
+ if (current_frame_info.transform_mode == 4) {
+ // tx_mode_probs() in the spec
+ WriteProbabilityUpdate(writer, current_frame_info.entropy.tx_8x8_prob,
+ prev_frame_probs.tx_8x8_prob);
+ WriteProbabilityUpdate(writer, current_frame_info.entropy.tx_16x16_prob,
+ prev_frame_probs.tx_16x16_prob);
+ WriteProbabilityUpdate(writer, current_frame_info.entropy.tx_32x32_prob,
+ prev_frame_probs.tx_32x32_prob);
+ if (update_probs) {
+ prev_frame_probs.tx_8x8_prob = current_frame_info.entropy.tx_8x8_prob;
+ prev_frame_probs.tx_16x16_prob = current_frame_info.entropy.tx_16x16_prob;
+ prev_frame_probs.tx_32x32_prob = current_frame_info.entropy.tx_32x32_prob;
+ }
+ }
+ // read_coef_probs() in the spec
+ WriteCoefProbabilityUpdate(writer, current_frame_info.transform_mode,
+ current_frame_info.entropy.coef_probs, prev_frame_probs.coef_probs);
+ // read_skip_probs() in the spec
+ WriteProbabilityUpdate(writer, current_frame_info.entropy.skip_probs,
+ prev_frame_probs.skip_probs);
+
+ if (update_probs) {
+ prev_frame_probs.coef_probs = current_frame_info.entropy.coef_probs;
+ prev_frame_probs.skip_probs = current_frame_info.entropy.skip_probs;
+ }
+
+ if (!current_frame_info.intra_only) {
+ // read_inter_probs() in the spec
+ WriteProbabilityUpdateAligned4(writer, current_frame_info.entropy.inter_mode_prob,
+ prev_frame_probs.inter_mode_prob);
+
+ if (current_frame_info.interp_filter == 4) {
+ // read_interp_filter_probs() in the spec
+ WriteProbabilityUpdate(writer, current_frame_info.entropy.switchable_interp_prob,
+ prev_frame_probs.switchable_interp_prob);
+ if (update_probs) {
+ prev_frame_probs.switchable_interp_prob =
+ current_frame_info.entropy.switchable_interp_prob;
+ }
+ }
+
+ // read_is_inter_probs() in the spec
+ WriteProbabilityUpdate(writer, current_frame_info.entropy.intra_inter_prob,
+ prev_frame_probs.intra_inter_prob);
+
+ // frame_reference_mode() in the spec
+ if ((current_frame_info.ref_frame_sign_bias[1] & 1) !=
+ (current_frame_info.ref_frame_sign_bias[2] & 1) ||
+ (current_frame_info.ref_frame_sign_bias[1] & 1) !=
+ (current_frame_info.ref_frame_sign_bias[3] & 1)) {
+ if (current_frame_info.reference_mode >= 1) {
+ writer.Write(1, 1);
+ writer.Write(current_frame_info.reference_mode == 2);
+ } else {
+ writer.Write(0, 1);
+ }
+ }
+
+ // frame_reference_mode_probs() in the spec
+ if (current_frame_info.reference_mode == 2) {
+ WriteProbabilityUpdate(writer, current_frame_info.entropy.comp_inter_prob,
+ prev_frame_probs.comp_inter_prob);
+ if (update_probs) {
+ prev_frame_probs.comp_inter_prob = current_frame_info.entropy.comp_inter_prob;
+ }
+ }
+
+ if (current_frame_info.reference_mode != 1) {
+ WriteProbabilityUpdate(writer, current_frame_info.entropy.single_ref_prob,
+ prev_frame_probs.single_ref_prob);
+ if (update_probs) {
+ prev_frame_probs.single_ref_prob = current_frame_info.entropy.single_ref_prob;
+ }
+ }
+
+ if (current_frame_info.reference_mode != 0) {
+ WriteProbabilityUpdate(writer, current_frame_info.entropy.comp_ref_prob,
+ prev_frame_probs.comp_ref_prob);
+ if (update_probs) {
+ prev_frame_probs.comp_ref_prob = current_frame_info.entropy.comp_ref_prob;
+ }
+ }
+
+ // read_y_mode_probs
+ for (std::size_t index = 0; index < current_frame_info.entropy.y_mode_prob.size();
+ ++index) {
+ WriteProbabilityUpdate(writer, current_frame_info.entropy.y_mode_prob[index],
+ prev_frame_probs.y_mode_prob[index]);
+ }
+
+ // read_partition_probs
+ WriteProbabilityUpdateAligned4(writer, current_frame_info.entropy.partition_prob,
+ prev_frame_probs.partition_prob);
+
+ // mv_probs
+ for (s32 i = 0; i < 3; i++) {
+ WriteMvProbabilityUpdate(writer, current_frame_info.entropy.joints[i],
+ prev_frame_probs.joints[i]);
+ }
+ if (update_probs) {
+ prev_frame_probs.inter_mode_prob = current_frame_info.entropy.inter_mode_prob;
+ prev_frame_probs.intra_inter_prob = current_frame_info.entropy.intra_inter_prob;
+ prev_frame_probs.y_mode_prob = current_frame_info.entropy.y_mode_prob;
+ prev_frame_probs.partition_prob = current_frame_info.entropy.partition_prob;
+ prev_frame_probs.joints = current_frame_info.entropy.joints;
+ }
+
+ for (s32 i = 0; i < 2; i++) {
+ WriteMvProbabilityUpdate(writer, current_frame_info.entropy.sign[i],
+ prev_frame_probs.sign[i]);
+ for (s32 j = 0; j < 10; j++) {
+ const int index = i * 10 + j;
+ WriteMvProbabilityUpdate(writer, current_frame_info.entropy.classes[index],
+ prev_frame_probs.classes[index]);
+ }
+ WriteMvProbabilityUpdate(writer, current_frame_info.entropy.class_0[i],
+ prev_frame_probs.class_0[i]);
+
+ for (s32 j = 0; j < 10; j++) {
+ const int index = i * 10 + j;
+ WriteMvProbabilityUpdate(writer, current_frame_info.entropy.prob_bits[index],
+ prev_frame_probs.prob_bits[index]);
+ }
+ }
+
+ for (s32 i = 0; i < 2; i++) {
+ for (s32 j = 0; j < 2; j++) {
+ for (s32 k = 0; k < 3; k++) {
+ const int index = i * 2 * 3 + j * 3 + k;
+ WriteMvProbabilityUpdate(writer, current_frame_info.entropy.class_0_fr[index],
+ prev_frame_probs.class_0_fr[index]);
+ }
+ }
+
+ for (s32 j = 0; j < 3; j++) {
+ const int index = i * 3 + j;
+ WriteMvProbabilityUpdate(writer, current_frame_info.entropy.fr[index],
+ prev_frame_probs.fr[index]);
+ }
+ }
+
+ if (current_frame_info.allow_high_precision_mv) {
+ for (s32 index = 0; index < 2; index++) {
+ WriteMvProbabilityUpdate(writer, current_frame_info.entropy.class_0_hp[index],
+ prev_frame_probs.class_0_hp[index]);
+ WriteMvProbabilityUpdate(writer, current_frame_info.entropy.high_precision[index],
+ prev_frame_probs.high_precision[index]);
+ }
+ }
+
+ // save previous probs
+ if (update_probs) {
+ prev_frame_probs.sign = current_frame_info.entropy.sign;
+ prev_frame_probs.classes = current_frame_info.entropy.classes;
+ prev_frame_probs.class_0 = current_frame_info.entropy.class_0;
+ prev_frame_probs.prob_bits = current_frame_info.entropy.prob_bits;
+ prev_frame_probs.class_0_fr = current_frame_info.entropy.class_0_fr;
+ prev_frame_probs.fr = current_frame_info.entropy.fr;
+ prev_frame_probs.class_0_hp = current_frame_info.entropy.class_0_hp;
+ prev_frame_probs.high_precision = current_frame_info.entropy.high_precision;
+ }
+ }
+ writer.End();
+ return writer.GetBuffer();
+}
+
+VpxBitStreamWriter VP9::ComposeUncompressedHeader() {
+ VpxBitStreamWriter uncomp_writer{};
+
+ uncomp_writer.WriteU(2, 2); // Frame marker.
+ uncomp_writer.WriteU(0, 2); // Profile.
+ uncomp_writer.WriteBit(false); // Show existing frame.
+ uncomp_writer.WriteBit(!current_frame_info.is_key_frame); // is key frame?
+ uncomp_writer.WriteBit(current_frame_info.show_frame); // show frame?
+ uncomp_writer.WriteBit(current_frame_info.error_resilient_mode); // error reslience
+
+ if (current_frame_info.is_key_frame) {
+ uncomp_writer.WriteU(frame_sync_code, 24);
+ uncomp_writer.WriteU(0, 3); // Color space.
+ uncomp_writer.WriteU(0, 1); // Color range.
+ uncomp_writer.WriteU(current_frame_info.frame_size.width - 1, 16);
+ uncomp_writer.WriteU(current_frame_info.frame_size.height - 1, 16);
+ uncomp_writer.WriteBit(false); // Render and frame size different.
+
+ // Reset context
+ prev_frame_probs = default_probs;
+ swap_ref_indices = false;
+ loop_filter_ref_deltas.fill(0);
+ loop_filter_mode_deltas.fill(0);
+ frame_ctxs.fill(default_probs);
+
+ // intra only, meaning the frame can be recreated with no other references
+ current_frame_info.intra_only = true;
+ } else {
+ if (!current_frame_info.show_frame) {
+ uncomp_writer.WriteBit(current_frame_info.intra_only);
+ } else {
+ current_frame_info.intra_only = false;
+ }
+ if (!current_frame_info.error_resilient_mode) {
+ uncomp_writer.WriteU(0, 2); // Reset frame context.
+ }
+ const auto& curr_offsets = current_frame_info.frame_offsets;
+ const auto& next_offsets = next_frame.info.frame_offsets;
+ const bool ref_frames_different = curr_offsets[1] != curr_offsets[2];
+ const bool next_references_swap =
+ (next_offsets[1] == curr_offsets[2]) || (next_offsets[2] == curr_offsets[1]);
+ const bool needs_ref_swap = ref_frames_different && next_references_swap;
+ if (needs_ref_swap) {
+ swap_ref_indices = !swap_ref_indices;
+ }
+ union {
+ u32 raw;
+ BitField<0, 1, u32> refresh_last;
+ BitField<1, 2, u32> refresh_golden;
+ BitField<2, 1, u32> refresh_alt;
+ } refresh_frame_flags;
+
+ refresh_frame_flags.raw = 0;
+ for (u32 index = 0; index < 3; ++index) {
+ // Refresh indices that use the current frame as an index
+ if (curr_offsets[3] == next_offsets[index]) {
+ refresh_frame_flags.raw |= 1u << index;
+ }
+ }
+ if (swap_ref_indices) {
+ const u32 temp = refresh_frame_flags.refresh_golden;
+ refresh_frame_flags.refresh_golden.Assign(refresh_frame_flags.refresh_alt.Value());
+ refresh_frame_flags.refresh_alt.Assign(temp);
+ }
+ if (current_frame_info.intra_only) {
+ uncomp_writer.WriteU(frame_sync_code, 24);
+ uncomp_writer.WriteU(refresh_frame_flags.raw, 8);
+ uncomp_writer.WriteU(current_frame_info.frame_size.width - 1, 16);
+ uncomp_writer.WriteU(current_frame_info.frame_size.height - 1, 16);
+ uncomp_writer.WriteBit(false); // Render and frame size different.
+ } else {
+ const bool swap_indices = needs_ref_swap ^ swap_ref_indices;
+ const auto ref_frame_index = swap_indices ? std::array{0, 2, 1} : std::array{0, 1, 2};
+ uncomp_writer.WriteU(refresh_frame_flags.raw, 8);
+ for (size_t index = 1; index < 4; index++) {
+ uncomp_writer.WriteU(ref_frame_index[index - 1], 3);
+ uncomp_writer.WriteU(current_frame_info.ref_frame_sign_bias[index], 1);
+ }
+ uncomp_writer.WriteBit(true); // Frame size with refs.
+ uncomp_writer.WriteBit(false); // Render and frame size different.
+ uncomp_writer.WriteBit(current_frame_info.allow_high_precision_mv);
+ uncomp_writer.WriteBit(current_frame_info.interp_filter == 4);
+
+ if (current_frame_info.interp_filter != 4) {
+ uncomp_writer.WriteU(current_frame_info.interp_filter, 2);
+ }
+ }
+ }
+
+ if (!current_frame_info.error_resilient_mode) {
+ uncomp_writer.WriteBit(true); // Refresh frame context. where do i get this info from?
+ uncomp_writer.WriteBit(true); // Frame parallel decoding mode.
+ }
+
+ int frame_ctx_idx = 0;
+ if (!current_frame_info.show_frame) {
+ frame_ctx_idx = 1;
+ }
+
+ uncomp_writer.WriteU(frame_ctx_idx, 2); // Frame context index.
+ prev_frame_probs = frame_ctxs[frame_ctx_idx]; // reference probabilities for compressed header
+ frame_ctxs[frame_ctx_idx] = current_frame_info.entropy;
+
+ uncomp_writer.WriteU(current_frame_info.first_level, 6);
+ uncomp_writer.WriteU(current_frame_info.sharpness_level, 3);
+ uncomp_writer.WriteBit(current_frame_info.mode_ref_delta_enabled);
+
+ if (current_frame_info.mode_ref_delta_enabled) {
+ // check if ref deltas are different, update accordingly
+ std::array<bool, 4> update_loop_filter_ref_deltas;
+ std::array<bool, 2> update_loop_filter_mode_deltas;
+
+ bool loop_filter_delta_update = false;
+
+ for (std::size_t index = 0; index < current_frame_info.ref_deltas.size(); index++) {
+ const s8 old_deltas = loop_filter_ref_deltas[index];
+ const s8 new_deltas = current_frame_info.ref_deltas[index];
+ const bool differing_delta = old_deltas != new_deltas;
+
+ update_loop_filter_ref_deltas[index] = differing_delta;
+ loop_filter_delta_update |= differing_delta;
+ }
+
+ for (std::size_t index = 0; index < current_frame_info.mode_deltas.size(); index++) {
+ const s8 old_deltas = loop_filter_mode_deltas[index];
+ const s8 new_deltas = current_frame_info.mode_deltas[index];
+ const bool differing_delta = old_deltas != new_deltas;
+
+ update_loop_filter_mode_deltas[index] = differing_delta;
+ loop_filter_delta_update |= differing_delta;
+ }
+
+ uncomp_writer.WriteBit(loop_filter_delta_update);
+
+ if (loop_filter_delta_update) {
+ for (std::size_t index = 0; index < current_frame_info.ref_deltas.size(); index++) {
+ uncomp_writer.WriteBit(update_loop_filter_ref_deltas[index]);
+
+ if (update_loop_filter_ref_deltas[index]) {
+ uncomp_writer.WriteS(current_frame_info.ref_deltas[index], 6);
+ }
+ }
+
+ for (std::size_t index = 0; index < current_frame_info.mode_deltas.size(); index++) {
+ uncomp_writer.WriteBit(update_loop_filter_mode_deltas[index]);
+
+ if (update_loop_filter_mode_deltas[index]) {
+ uncomp_writer.WriteS(current_frame_info.mode_deltas[index], 6);
+ }
+ }
+ // save new deltas
+ loop_filter_ref_deltas = current_frame_info.ref_deltas;
+ loop_filter_mode_deltas = current_frame_info.mode_deltas;
+ }
+ }
+
+ uncomp_writer.WriteU(current_frame_info.base_q_index, 8);
+
+ uncomp_writer.WriteDeltaQ(current_frame_info.y_dc_delta_q);
+ uncomp_writer.WriteDeltaQ(current_frame_info.uv_dc_delta_q);
+ uncomp_writer.WriteDeltaQ(current_frame_info.uv_ac_delta_q);
+
+ ASSERT(!current_frame_info.segment_enabled);
+ uncomp_writer.WriteBit(false); // Segmentation enabled (TODO).
+
+ const s32 min_tile_cols_log2 = CalcMinLog2TileCols(current_frame_info.frame_size.width);
+ const s32 max_tile_cols_log2 = CalcMaxLog2TileCols(current_frame_info.frame_size.width);
+
+ const s32 tile_cols_log2_diff = current_frame_info.log2_tile_cols - min_tile_cols_log2;
+ const s32 tile_cols_log2_inc_mask = (1 << tile_cols_log2_diff) - 1;
+
+ // If it's less than the maximum, we need to add an extra 0 on the bitstream
+ // to indicate that it should stop reading.
+ if (current_frame_info.log2_tile_cols < max_tile_cols_log2) {
+ uncomp_writer.WriteU(tile_cols_log2_inc_mask << 1, tile_cols_log2_diff + 1);
+ } else {
+ uncomp_writer.WriteU(tile_cols_log2_inc_mask, tile_cols_log2_diff);
+ }
+
+ const bool tile_rows_log2_is_nonzero = current_frame_info.log2_tile_rows != 0;
+
+ uncomp_writer.WriteBit(tile_rows_log2_is_nonzero);
+
+ if (tile_rows_log2_is_nonzero) {
+ uncomp_writer.WriteBit(current_frame_info.log2_tile_rows > 1);
+ }
+
+ return uncomp_writer;
+}
+
+void VP9::ComposeFrame(const Host1x::NvdecCommon::NvdecRegisters& state) {
+ std::vector<u8> bitstream;
+ {
+ Vp9FrameContainer curr_frame = GetCurrentFrame(state);
+ current_frame_info = curr_frame.info;
+ bitstream = std::move(curr_frame.bit_stream);
+ }
+ // The uncompressed header routine sets PrevProb parameters needed for the compressed header
+ auto uncomp_writer = ComposeUncompressedHeader();
+ std::vector<u8> compressed_header = ComposeCompressedHeader();
+
+ uncomp_writer.WriteU(static_cast<s32>(compressed_header.size()), 16);
+ uncomp_writer.Flush();
+ std::vector<u8> uncompressed_header = uncomp_writer.GetByteArray();
+
+ // Write headers and frame to buffer
+ frame.resize(uncompressed_header.size() + compressed_header.size() + bitstream.size());
+ std::copy(uncompressed_header.begin(), uncompressed_header.end(), frame.begin());
+ std::copy(compressed_header.begin(), compressed_header.end(),
+ frame.begin() + uncompressed_header.size());
+ std::copy(bitstream.begin(), bitstream.end(),
+ frame.begin() + uncompressed_header.size() + compressed_header.size());
+}
+
+VpxRangeEncoder::VpxRangeEncoder() {
+ Write(false);
+}
+
+VpxRangeEncoder::~VpxRangeEncoder() = default;
+
+void VpxRangeEncoder::Write(s32 value, s32 value_size) {
+ for (s32 bit = value_size - 1; bit >= 0; bit--) {
+ Write(((value >> bit) & 1) != 0);
+ }
+}
+
+void VpxRangeEncoder::Write(bool bit) {
+ Write(bit, half_probability);
+}
+
+void VpxRangeEncoder::Write(bool bit, s32 probability) {
+ u32 local_range = range;
+ const u32 split = 1 + (((local_range - 1) * static_cast<u32>(probability)) >> 8);
+ local_range = split;
+
+ if (bit) {
+ low_value += split;
+ local_range = range - split;
+ }
+
+ s32 shift = static_cast<s32>(norm_lut[local_range]);
+ local_range <<= shift;
+ count += shift;
+
+ if (count >= 0) {
+ const s32 offset = shift - count;
+
+ if (((low_value << (offset - 1)) >> 31) != 0) {
+ const s32 current_pos = static_cast<s32>(base_stream.GetPosition());
+ base_stream.Seek(-1, Common::SeekOrigin::FromCurrentPos);
+ while (PeekByte() == 0xff) {
+ base_stream.WriteByte(0);
+
+ base_stream.Seek(-2, Common::SeekOrigin::FromCurrentPos);
+ }
+ base_stream.WriteByte(static_cast<u8>((PeekByte() + 1)));
+ base_stream.Seek(current_pos, Common::SeekOrigin::SetOrigin);
+ }
+ base_stream.WriteByte(static_cast<u8>((low_value >> (24 - offset))));
+
+ low_value <<= offset;
+ shift = count;
+ low_value &= 0xffffff;
+ count -= 8;
+ }
+
+ low_value <<= shift;
+ range = local_range;
+}
+
+void VpxRangeEncoder::End() {
+ for (std::size_t index = 0; index < 32; ++index) {
+ Write(false);
+ }
+}
+
+u8 VpxRangeEncoder::PeekByte() {
+ const u8 value = base_stream.ReadByte();
+ base_stream.Seek(-1, Common::SeekOrigin::FromCurrentPos);
+
+ return value;
+}
+
+VpxBitStreamWriter::VpxBitStreamWriter() = default;
+
+VpxBitStreamWriter::~VpxBitStreamWriter() = default;
+
+void VpxBitStreamWriter::WriteU(u32 value, u32 value_size) {
+ WriteBits(value, value_size);
+}
+
+void VpxBitStreamWriter::WriteS(s32 value, u32 value_size) {
+ const bool sign = value < 0;
+ if (sign) {
+ value = -value;
+ }
+
+ WriteBits(static_cast<u32>(value << 1) | (sign ? 1 : 0), value_size + 1);
+}
+
+void VpxBitStreamWriter::WriteDeltaQ(u32 value) {
+ const bool delta_coded = value != 0;
+ WriteBit(delta_coded);
+
+ if (delta_coded) {
+ WriteBits(value, 4);
+ }
+}
+
+void VpxBitStreamWriter::WriteBits(u32 value, u32 bit_count) {
+ s32 value_pos = 0;
+ s32 remaining = bit_count;
+
+ while (remaining > 0) {
+ s32 copy_size = remaining;
+
+ const s32 free = GetFreeBufferBits();
+
+ if (copy_size > free) {
+ copy_size = free;
+ }
+
+ const s32 mask = (1 << copy_size) - 1;
+
+ const s32 src_shift = (bit_count - value_pos) - copy_size;
+ const s32 dst_shift = (buffer_size - buffer_pos) - copy_size;
+
+ buffer |= ((value >> src_shift) & mask) << dst_shift;
+
+ value_pos += copy_size;
+ buffer_pos += copy_size;
+ remaining -= copy_size;
+ }
+}
+
+void VpxBitStreamWriter::WriteBit(bool state) {
+ WriteBits(state ? 1 : 0, 1);
+}
+
+s32 VpxBitStreamWriter::GetFreeBufferBits() {
+ if (buffer_pos == buffer_size) {
+ Flush();
+ }
+
+ return buffer_size - buffer_pos;
+}
+
+void VpxBitStreamWriter::Flush() {
+ if (buffer_pos == 0) {
+ return;
+ }
+ byte_array.push_back(static_cast<u8>(buffer));
+ buffer = 0;
+ buffer_pos = 0;
+}
+
+std::vector<u8>& VpxBitStreamWriter::GetByteArray() {
+ return byte_array;
+}
+
+const std::vector<u8>& VpxBitStreamWriter::GetByteArray() const {
+ return byte_array;
+}
+
+} // namespace Tegra::Decoder
diff --git a/src/video_core/host1x/codecs/vp9.h b/src/video_core/host1x/codecs/vp9.h
new file mode 100644
index 000000000..d4083e8d3
--- /dev/null
+++ b/src/video_core/host1x/codecs/vp9.h
@@ -0,0 +1,198 @@
+// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <vector>
+
+#include "common/common_types.h"
+#include "common/stream.h"
+#include "video_core/host1x/codecs/vp9_types.h"
+#include "video_core/host1x/nvdec_common.h"
+
+namespace Tegra {
+
+namespace Host1x {
+class Host1x;
+} // namespace Host1x
+
+namespace Decoder {
+
+/// The VpxRangeEncoder, and VpxBitStreamWriter classes are used to compose the
+/// VP9 header bitstreams.
+
+class VpxRangeEncoder {
+public:
+ VpxRangeEncoder();
+ ~VpxRangeEncoder();
+
+ VpxRangeEncoder(const VpxRangeEncoder&) = delete;
+ VpxRangeEncoder& operator=(const VpxRangeEncoder&) = delete;
+
+ VpxRangeEncoder(VpxRangeEncoder&&) = default;
+ VpxRangeEncoder& operator=(VpxRangeEncoder&&) = default;
+
+ /// Writes the rightmost value_size bits from value into the stream
+ void Write(s32 value, s32 value_size);
+
+ /// Writes a single bit with half probability
+ void Write(bool bit);
+
+ /// Writes a bit to the base_stream encoded with probability
+ void Write(bool bit, s32 probability);
+
+ /// Signal the end of the bitstream
+ void End();
+
+ [[nodiscard]] std::vector<u8>& GetBuffer() {
+ return base_stream.GetBuffer();
+ }
+
+ [[nodiscard]] const std::vector<u8>& GetBuffer() const {
+ return base_stream.GetBuffer();
+ }
+
+private:
+ u8 PeekByte();
+ Common::Stream base_stream{};
+ u32 low_value{};
+ u32 range{0xff};
+ s32 count{-24};
+ s32 half_probability{128};
+};
+
+class VpxBitStreamWriter {
+public:
+ VpxBitStreamWriter();
+ ~VpxBitStreamWriter();
+
+ VpxBitStreamWriter(const VpxBitStreamWriter&) = delete;
+ VpxBitStreamWriter& operator=(const VpxBitStreamWriter&) = delete;
+
+ VpxBitStreamWriter(VpxBitStreamWriter&&) = default;
+ VpxBitStreamWriter& operator=(VpxBitStreamWriter&&) = default;
+
+ /// Write an unsigned integer value
+ void WriteU(u32 value, u32 value_size);
+
+ /// Write a signed integer value
+ void WriteS(s32 value, u32 value_size);
+
+ /// Based on 6.2.10 of VP9 Spec, writes a delta coded value
+ void WriteDeltaQ(u32 value);
+
+ /// Write a single bit.
+ void WriteBit(bool state);
+
+ /// Pushes current buffer into buffer_array, resets buffer
+ void Flush();
+
+ /// Returns byte_array
+ [[nodiscard]] std::vector<u8>& GetByteArray();
+
+ /// Returns const byte_array
+ [[nodiscard]] const std::vector<u8>& GetByteArray() const;
+
+private:
+ /// Write bit_count bits from value into buffer
+ void WriteBits(u32 value, u32 bit_count);
+
+ /// Gets next available position in buffer, invokes Flush() if buffer is full
+ s32 GetFreeBufferBits();
+
+ s32 buffer_size{8};
+
+ s32 buffer{};
+ s32 buffer_pos{};
+ std::vector<u8> byte_array;
+};
+
+class VP9 {
+public:
+ explicit VP9(Host1x::Host1x& host1x);
+ ~VP9();
+
+ VP9(const VP9&) = delete;
+ VP9& operator=(const VP9&) = delete;
+
+ VP9(VP9&&) = default;
+ VP9& operator=(VP9&&) = delete;
+
+ /// Composes the VP9 frame from the GPU state information.
+ /// Based on the official VP9 spec documentation
+ void ComposeFrame(const Host1x::NvdecCommon::NvdecRegisters& state);
+
+ /// Returns true if the most recent frame was a hidden frame.
+ [[nodiscard]] bool WasFrameHidden() const {
+ return !current_frame_info.show_frame;
+ }
+
+ /// Returns a const reference to the composed frame data.
+ [[nodiscard]] const std::vector<u8>& GetFrameBytes() const {
+ return frame;
+ }
+
+private:
+ /// Generates compressed header probability updates in the bitstream writer
+ template <typename T, std::size_t N>
+ void WriteProbabilityUpdate(VpxRangeEncoder& writer, const std::array<T, N>& new_prob,
+ const std::array<T, N>& old_prob);
+
+ /// Generates compressed header probability updates in the bitstream writer
+ /// If probs are not equal, WriteProbabilityDelta is invoked
+ void WriteProbabilityUpdate(VpxRangeEncoder& writer, u8 new_prob, u8 old_prob);
+
+ /// Generates compressed header probability deltas in the bitstream writer
+ void WriteProbabilityDelta(VpxRangeEncoder& writer, u8 new_prob, u8 old_prob);
+
+ /// Inverse of 6.3.4 Decode term subexp
+ void EncodeTermSubExp(VpxRangeEncoder& writer, s32 value);
+
+ /// Writes if the value is less than the test value
+ bool WriteLessThan(VpxRangeEncoder& writer, s32 value, s32 test);
+
+ /// Writes probability updates for the Coef probabilities
+ void WriteCoefProbabilityUpdate(VpxRangeEncoder& writer, s32 tx_mode,
+ const std::array<u8, 1728>& new_prob,
+ const std::array<u8, 1728>& old_prob);
+
+ /// Write probabilities for 4-byte aligned structures
+ template <typename T, std::size_t N>
+ void WriteProbabilityUpdateAligned4(VpxRangeEncoder& writer, const std::array<T, N>& new_prob,
+ const std::array<T, N>& old_prob);
+
+ /// Write motion vector probability updates. 6.3.17 in the spec
+ void WriteMvProbabilityUpdate(VpxRangeEncoder& writer, u8 new_prob, u8 old_prob);
+
+ /// Returns VP9 information from NVDEC provided offset and size
+ [[nodiscard]] Vp9PictureInfo GetVp9PictureInfo(
+ const Host1x::NvdecCommon::NvdecRegisters& state);
+
+ /// Read and convert NVDEC provided entropy probs to Vp9EntropyProbs struct
+ void InsertEntropy(u64 offset, Vp9EntropyProbs& dst);
+
+ /// Returns frame to be decoded after buffering
+ [[nodiscard]] Vp9FrameContainer GetCurrentFrame(
+ const Host1x::NvdecCommon::NvdecRegisters& state);
+
+ /// Use NVDEC providied information to compose the headers for the current frame
+ [[nodiscard]] std::vector<u8> ComposeCompressedHeader();
+ [[nodiscard]] VpxBitStreamWriter ComposeUncompressedHeader();
+
+ Host1x::Host1x& host1x;
+ std::vector<u8> frame;
+
+ std::array<s8, 4> loop_filter_ref_deltas{};
+ std::array<s8, 2> loop_filter_mode_deltas{};
+
+ Vp9FrameContainer next_frame{};
+ std::array<Vp9EntropyProbs, 4> frame_ctxs{};
+ bool swap_ref_indices{};
+
+ Vp9PictureInfo current_frame_info{};
+ Vp9EntropyProbs prev_frame_probs{};
+};
+
+} // namespace Decoder
+} // namespace Tegra
diff --git a/src/video_core/host1x/codecs/vp9_types.h b/src/video_core/host1x/codecs/vp9_types.h
new file mode 100644
index 000000000..adad8ed7e
--- /dev/null
+++ b/src/video_core/host1x/codecs/vp9_types.h
@@ -0,0 +1,305 @@
+// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <array>
+#include <vector>
+#include "common/common_funcs.h"
+#include "common/common_types.h"
+
+namespace Tegra {
+
+namespace Decoder {
+struct Vp9FrameDimensions {
+ s16 width;
+ s16 height;
+ s16 luma_pitch;
+ s16 chroma_pitch;
+};
+static_assert(sizeof(Vp9FrameDimensions) == 0x8, "Vp9 Vp9FrameDimensions is an invalid size");
+
+enum class FrameFlags : u32 {
+ IsKeyFrame = 1 << 0,
+ LastFrameIsKeyFrame = 1 << 1,
+ FrameSizeChanged = 1 << 2,
+ ErrorResilientMode = 1 << 3,
+ LastShowFrame = 1 << 4,
+ IntraOnly = 1 << 5,
+};
+DECLARE_ENUM_FLAG_OPERATORS(FrameFlags)
+
+enum class TxSize {
+ Tx4x4 = 0, // 4x4 transform
+ Tx8x8 = 1, // 8x8 transform
+ Tx16x16 = 2, // 16x16 transform
+ Tx32x32 = 3, // 32x32 transform
+ TxSizes = 4
+};
+
+enum class TxMode {
+ Only4X4 = 0, // Only 4x4 transform used
+ Allow8X8 = 1, // Allow block transform size up to 8x8
+ Allow16X16 = 2, // Allow block transform size up to 16x16
+ Allow32X32 = 3, // Allow block transform size up to 32x32
+ TxModeSelect = 4, // Transform specified for each block
+ TxModes = 5
+};
+
+struct Segmentation {
+ u8 enabled;
+ u8 update_map;
+ u8 temporal_update;
+ u8 abs_delta;
+ std::array<u32, 8> feature_mask;
+ std::array<std::array<s16, 4>, 8> feature_data;
+};
+static_assert(sizeof(Segmentation) == 0x64, "Segmentation is an invalid size");
+
+struct LoopFilter {
+ u8 mode_ref_delta_enabled;
+ std::array<s8, 4> ref_deltas;
+ std::array<s8, 2> mode_deltas;
+};
+static_assert(sizeof(LoopFilter) == 0x7, "LoopFilter is an invalid size");
+
+struct Vp9EntropyProbs {
+ std::array<u8, 36> y_mode_prob; ///< 0x0000
+ std::array<u8, 64> partition_prob; ///< 0x0024
+ std::array<u8, 1728> coef_probs; ///< 0x0064
+ std::array<u8, 8> switchable_interp_prob; ///< 0x0724
+ std::array<u8, 28> inter_mode_prob; ///< 0x072C
+ std::array<u8, 4> intra_inter_prob; ///< 0x0748
+ std::array<u8, 5> comp_inter_prob; ///< 0x074C
+ std::array<u8, 10> single_ref_prob; ///< 0x0751
+ std::array<u8, 5> comp_ref_prob; ///< 0x075B
+ std::array<u8, 6> tx_32x32_prob; ///< 0x0760
+ std::array<u8, 4> tx_16x16_prob; ///< 0x0766
+ std::array<u8, 2> tx_8x8_prob; ///< 0x076A
+ std::array<u8, 3> skip_probs; ///< 0x076C
+ std::array<u8, 3> joints; ///< 0x076F
+ std::array<u8, 2> sign; ///< 0x0772
+ std::array<u8, 20> classes; ///< 0x0774
+ std::array<u8, 2> class_0; ///< 0x0788
+ std::array<u8, 20> prob_bits; ///< 0x078A
+ std::array<u8, 12> class_0_fr; ///< 0x079E
+ std::array<u8, 6> fr; ///< 0x07AA
+ std::array<u8, 2> class_0_hp; ///< 0x07B0
+ std::array<u8, 2> high_precision; ///< 0x07B2
+};
+static_assert(sizeof(Vp9EntropyProbs) == 0x7B4, "Vp9EntropyProbs is an invalid size");
+
+struct Vp9PictureInfo {
+ u32 bitstream_size;
+ std::array<u64, 4> frame_offsets;
+ std::array<s8, 4> ref_frame_sign_bias;
+ s32 base_q_index;
+ s32 y_dc_delta_q;
+ s32 uv_dc_delta_q;
+ s32 uv_ac_delta_q;
+ s32 transform_mode;
+ s32 interp_filter;
+ s32 reference_mode;
+ s32 log2_tile_cols;
+ s32 log2_tile_rows;
+ std::array<s8, 4> ref_deltas;
+ std::array<s8, 2> mode_deltas;
+ Vp9EntropyProbs entropy;
+ Vp9FrameDimensions frame_size;
+ u8 first_level;
+ u8 sharpness_level;
+ bool is_key_frame;
+ bool intra_only;
+ bool last_frame_was_key;
+ bool error_resilient_mode;
+ bool last_frame_shown;
+ bool show_frame;
+ bool lossless;
+ bool allow_high_precision_mv;
+ bool segment_enabled;
+ bool mode_ref_delta_enabled;
+};
+
+struct Vp9FrameContainer {
+ Vp9PictureInfo info{};
+ std::vector<u8> bit_stream;
+};
+
+struct PictureInfo {
+ INSERT_PADDING_WORDS_NOINIT(12); ///< 0x00
+ u32 bitstream_size; ///< 0x30
+ INSERT_PADDING_WORDS_NOINIT(5); ///< 0x34
+ Vp9FrameDimensions last_frame_size; ///< 0x48
+ Vp9FrameDimensions golden_frame_size; ///< 0x50
+ Vp9FrameDimensions alt_frame_size; ///< 0x58
+ Vp9FrameDimensions current_frame_size; ///< 0x60
+ FrameFlags vp9_flags; ///< 0x68
+ std::array<s8, 4> ref_frame_sign_bias; ///< 0x6C
+ u8 first_level; ///< 0x70
+ u8 sharpness_level; ///< 0x71
+ u8 base_q_index; ///< 0x72
+ u8 y_dc_delta_q; ///< 0x73
+ u8 uv_ac_delta_q; ///< 0x74
+ u8 uv_dc_delta_q; ///< 0x75
+ u8 lossless; ///< 0x76
+ u8 tx_mode; ///< 0x77
+ u8 allow_high_precision_mv; ///< 0x78
+ u8 interp_filter; ///< 0x79
+ u8 reference_mode; ///< 0x7A
+ INSERT_PADDING_BYTES_NOINIT(3); ///< 0x7B
+ u8 log2_tile_cols; ///< 0x7E
+ u8 log2_tile_rows; ///< 0x7F
+ Segmentation segmentation; ///< 0x80
+ LoopFilter loop_filter; ///< 0xE4
+ INSERT_PADDING_BYTES_NOINIT(21); ///< 0xEB
+
+ [[nodiscard]] Vp9PictureInfo Convert() const {
+ return {
+ .bitstream_size = bitstream_size,
+ .frame_offsets{},
+ .ref_frame_sign_bias = ref_frame_sign_bias,
+ .base_q_index = base_q_index,
+ .y_dc_delta_q = y_dc_delta_q,
+ .uv_dc_delta_q = uv_dc_delta_q,
+ .uv_ac_delta_q = uv_ac_delta_q,
+ .transform_mode = tx_mode,
+ .interp_filter = interp_filter,
+ .reference_mode = reference_mode,
+ .log2_tile_cols = log2_tile_cols,
+ .log2_tile_rows = log2_tile_rows,
+ .ref_deltas = loop_filter.ref_deltas,
+ .mode_deltas = loop_filter.mode_deltas,
+ .entropy{},
+ .frame_size = current_frame_size,
+ .first_level = first_level,
+ .sharpness_level = sharpness_level,
+ .is_key_frame = True(vp9_flags & FrameFlags::IsKeyFrame),
+ .intra_only = True(vp9_flags & FrameFlags::IntraOnly),
+ .last_frame_was_key = True(vp9_flags & FrameFlags::LastFrameIsKeyFrame),
+ .error_resilient_mode = True(vp9_flags & FrameFlags::ErrorResilientMode),
+ .last_frame_shown = True(vp9_flags & FrameFlags::LastShowFrame),
+ .show_frame = true,
+ .lossless = lossless != 0,
+ .allow_high_precision_mv = allow_high_precision_mv != 0,
+ .segment_enabled = segmentation.enabled != 0,
+ .mode_ref_delta_enabled = loop_filter.mode_ref_delta_enabled != 0,
+ };
+ }
+};
+static_assert(sizeof(PictureInfo) == 0x100, "PictureInfo is an invalid size");
+
+struct EntropyProbs {
+ INSERT_PADDING_BYTES_NOINIT(1024); ///< 0x0000
+ std::array<u8, 28> inter_mode_prob; ///< 0x0400
+ std::array<u8, 4> intra_inter_prob; ///< 0x041C
+ INSERT_PADDING_BYTES_NOINIT(80); ///< 0x0420
+ std::array<u8, 2> tx_8x8_prob; ///< 0x0470
+ std::array<u8, 4> tx_16x16_prob; ///< 0x0472
+ std::array<u8, 6> tx_32x32_prob; ///< 0x0476
+ std::array<u8, 4> y_mode_prob_e8; ///< 0x047C
+ std::array<std::array<u8, 8>, 4> y_mode_prob_e0e7; ///< 0x0480
+ INSERT_PADDING_BYTES_NOINIT(64); ///< 0x04A0
+ std::array<u8, 64> partition_prob; ///< 0x04E0
+ INSERT_PADDING_BYTES_NOINIT(10); ///< 0x0520
+ std::array<u8, 8> switchable_interp_prob; ///< 0x052A
+ std::array<u8, 5> comp_inter_prob; ///< 0x0532
+ std::array<u8, 3> skip_probs; ///< 0x0537
+ INSERT_PADDING_BYTES_NOINIT(1); ///< 0x053A
+ std::array<u8, 3> joints; ///< 0x053B
+ std::array<u8, 2> sign; ///< 0x053E
+ std::array<u8, 2> class_0; ///< 0x0540
+ std::array<u8, 6> fr; ///< 0x0542
+ std::array<u8, 2> class_0_hp; ///< 0x0548
+ std::array<u8, 2> high_precision; ///< 0x054A
+ std::array<u8, 20> classes; ///< 0x054C
+ std::array<u8, 12> class_0_fr; ///< 0x0560
+ std::array<u8, 20> pred_bits; ///< 0x056C
+ std::array<u8, 10> single_ref_prob; ///< 0x0580
+ std::array<u8, 5> comp_ref_prob; ///< 0x058A
+ INSERT_PADDING_BYTES_NOINIT(17); ///< 0x058F
+ std::array<u8, 2304> coef_probs; ///< 0x05A0
+
+ void Convert(Vp9EntropyProbs& fc) {
+ fc.inter_mode_prob = inter_mode_prob;
+ fc.intra_inter_prob = intra_inter_prob;
+ fc.tx_8x8_prob = tx_8x8_prob;
+ fc.tx_16x16_prob = tx_16x16_prob;
+ fc.tx_32x32_prob = tx_32x32_prob;
+
+ for (std::size_t i = 0; i < 4; i++) {
+ for (std::size_t j = 0; j < 9; j++) {
+ fc.y_mode_prob[j + 9 * i] = j < 8 ? y_mode_prob_e0e7[i][j] : y_mode_prob_e8[i];
+ }
+ }
+
+ fc.partition_prob = partition_prob;
+ fc.switchable_interp_prob = switchable_interp_prob;
+ fc.comp_inter_prob = comp_inter_prob;
+ fc.skip_probs = skip_probs;
+ fc.joints = joints;
+ fc.sign = sign;
+ fc.class_0 = class_0;
+ fc.fr = fr;
+ fc.class_0_hp = class_0_hp;
+ fc.high_precision = high_precision;
+ fc.classes = classes;
+ fc.class_0_fr = class_0_fr;
+ fc.prob_bits = pred_bits;
+ fc.single_ref_prob = single_ref_prob;
+ fc.comp_ref_prob = comp_ref_prob;
+
+ // Skip the 4th element as it goes unused
+ for (std::size_t i = 0; i < coef_probs.size(); i += 4) {
+ const std::size_t j = i - i / 4;
+ fc.coef_probs[j] = coef_probs[i];
+ fc.coef_probs[j + 1] = coef_probs[i + 1];
+ fc.coef_probs[j + 2] = coef_probs[i + 2];
+ }
+ }
+};
+static_assert(sizeof(EntropyProbs) == 0xEA0, "EntropyProbs is an invalid size");
+
+enum class Ref { Last, Golden, AltRef };
+
+struct RefPoolElement {
+ s64 frame{};
+ Ref ref{};
+ bool refresh{};
+};
+
+#define ASSERT_POSITION(field_name, position) \
+ static_assert(offsetof(Vp9EntropyProbs, field_name) == position, \
+ "Field " #field_name " has invalid position")
+
+ASSERT_POSITION(partition_prob, 0x0024);
+ASSERT_POSITION(switchable_interp_prob, 0x0724);
+ASSERT_POSITION(sign, 0x0772);
+ASSERT_POSITION(class_0_fr, 0x079E);
+ASSERT_POSITION(high_precision, 0x07B2);
+#undef ASSERT_POSITION
+
+#define ASSERT_POSITION(field_name, position) \
+ static_assert(offsetof(PictureInfo, field_name) == position, \
+ "Field " #field_name " has invalid position")
+
+ASSERT_POSITION(bitstream_size, 0x30);
+ASSERT_POSITION(last_frame_size, 0x48);
+ASSERT_POSITION(first_level, 0x70);
+ASSERT_POSITION(segmentation, 0x80);
+ASSERT_POSITION(loop_filter, 0xE4);
+#undef ASSERT_POSITION
+
+#define ASSERT_POSITION(field_name, position) \
+ static_assert(offsetof(EntropyProbs, field_name) == position, \
+ "Field " #field_name " has invalid position")
+
+ASSERT_POSITION(inter_mode_prob, 0x400);
+ASSERT_POSITION(tx_8x8_prob, 0x470);
+ASSERT_POSITION(partition_prob, 0x4E0);
+ASSERT_POSITION(class_0, 0x540);
+ASSERT_POSITION(class_0_fr, 0x560);
+ASSERT_POSITION(coef_probs, 0x5A0);
+#undef ASSERT_POSITION
+
+}; // namespace Decoder
+}; // namespace Tegra
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