forked from suyu/suyu
eb67a45ca8
This commit aims to implement the NVDEC (Nvidia Decoder) functionality, with video frame decoding being handled by the FFmpeg library. The process begins with Ioctl commands being sent to the NVDEC and VIC (Video Image Composer) emulated devices. These allocate the necessary GPU buffers for the frame data, along with providing information on the incoming video data. A Submit command then signals the GPU to process and decode the frame data. To decode the frame, the respective codec's header must be manually composed from the information provided by NVDEC, then sent with the raw frame data to the ffmpeg library. Currently, H264 and VP9 are supported, with VP9 having some minor artifacting issues related mainly to the reference frame composition in its uncompressed header. Async GPU is not properly implemented at the moment. Co-Authored-By: David <25727384+ogniK5377@users.noreply.github.com>
48 lines
1.3 KiB
C++
48 lines
1.3 KiB
C++
// Copyright 2020 yuzu Emulator Project
|
|
// Licensed under GPLv2 or any later version
|
|
// Refer to the license.txt file included.
|
|
|
|
#pragma once
|
|
|
|
#include "common/common_funcs.h"
|
|
#include "common/common_types.h"
|
|
|
|
namespace Tegra::NvdecCommon {
|
|
|
|
struct NvdecRegisters {
|
|
INSERT_PADDING_WORDS(256);
|
|
u64 set_codec_id{};
|
|
INSERT_PADDING_WORDS(254);
|
|
u64 set_platform_id{};
|
|
u64 picture_info_offset{};
|
|
u64 frame_bitstream_offset{};
|
|
u64 frame_number{};
|
|
u64 h264_slice_data_offsets{};
|
|
u64 h264_mv_dump_offset{};
|
|
INSERT_PADDING_WORDS(6);
|
|
u64 frame_stats_offset{};
|
|
u64 h264_last_surface_luma_offset{};
|
|
u64 h264_last_surface_chroma_offset{};
|
|
std::array<u64, 17> surface_luma_offset{};
|
|
std::array<u64, 17> surface_chroma_offset{};
|
|
INSERT_PADDING_WORDS(132);
|
|
u64 vp9_entropy_probs_offset{};
|
|
u64 vp9_backward_updates_offset{};
|
|
u64 vp9_last_frame_segmap_offset{};
|
|
u64 vp9_curr_frame_segmap_offset{};
|
|
INSERT_PADDING_WORDS(2);
|
|
u64 vp9_last_frame_mvs_offset{};
|
|
u64 vp9_curr_frame_mvs_offset{};
|
|
INSERT_PADDING_WORDS(2);
|
|
};
|
|
static_assert(sizeof(NvdecRegisters) == (0xBC0), "NvdecRegisters is incorrect size");
|
|
|
|
enum class VideoCodec : u32 {
|
|
None = 0x0,
|
|
H264 = 0x3,
|
|
Vp8 = 0x5,
|
|
H265 = 0x7,
|
|
Vp9 = 0x9,
|
|
};
|
|
|
|
} // namespace Tegra::NvdecCommon
|