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mofeng-git d0e2e13b35 refactor(hwcodec): 简化 hwcodec 库以适配 IP-KVM 场景 
移除 IP-KVM 场景不需要的功能模块:
- 移除 VRAM 模块 (GPU 显存直接编解码)
- 移除 Mux 模块 (视频混流)
- 移除 macOS/Android 平台支持
- 移除外部 SDK 依赖 (~9MB)
- 移除开发工具和示例程序

简化解码器为仅支持 MJPEG (采集卡输出格式)
简化 NVIDIA 检测代码 (使用 dlopen 替代 SDK)
更新版本号至 0.8.0
更新相关技术文档
2025-12-31 19:47:08 +08:00
..
cpp
refactor(hwcodec): 简化 hwcodec 库以适配 IP-KVM 场景
2025-12-31 19:47:08 +08:00
src
refactor(hwcodec): 简化 hwcodec 库以适配 IP-KVM 场景
2025-12-31 19:47:08 +08:00
.gitignore
init
2025-12-28 18:19:16 +08:00
build.rs
refactor(hwcodec): 简化 hwcodec 库以适配 IP-KVM 场景
2025-12-31 19:47:08 +08:00
Cargo.toml
refactor(hwcodec): 简化 hwcodec 库以适配 IP-KVM 场景
2025-12-31 19:47:08 +08:00
README.md
init
2025-12-28 18:19:16 +08:00

README.md

A real-time hardware codec library for RustDesk based on FFmpeg

Codec

Windows

GPU FFmpeg ram FFmpeg vram sdk vram
intel encode qsv qsv Y
intel decode d3d11 d3d11 Y
nvidia encode nvenc(nv12->d3d11) nvenc(d3d11) Y
nvidia decode d3d11 d3d11 N
amd encode amf amf Y
amd decode d3d11 d3d11 Y

Notes

  • The reason for discarding the codecs using Cucontext is discussed in the following forum thread: https://forums.developer.nvidia.com/t/cuctxdestroy-causing-system-freeze-and-black-screen/290542/1. Based on the information above, there are several optimizations and changes made to the codec:

    • FFmpeg encoding AV_PIX_FMT_NV12 directly: The codec is modified to transfer AV_PIX_FMT_NV12 to AV_PIX_FMT_D3D11. This is done because FFmpeg doesn't use Cucontext if the device type is AV_HWDEVICE_TYPE_D3D11VA.
    • FFmpeg decoding with AV_HWDEVICE_TYPE_CUDA acceleration: This functionality is disabled and replaced with AV_HWDEVICE_TYPE_D3D11VA. The decoding process now utilizes D3D11VA acceleration instead of CUDA.
    • SDK decoding with CUDA acceleration: The CUDA acceleration support is disabled.

  • amd sdk remove h265 support, https://github.com/GPUOpen-LibrariesAndSDKs/AMF/issues/432

Linux

GPU FFmpeg ram
intel encode vaapi
intel decode vaapi
nvidia encode vaapi, nvnec
nvidia decode vaapi, nvdec
amd encode vaapi, amf
amd decode vaapi

Issue

MacOS

FFmpeg ram encode FFmpeg ram decode
h265 only Y

Android

FFmpeg ram encode
Y

System requirements