nvtool

README

NVTool

Video encoding tool based on rigaya's NVEncC.

Build

rsrc -manifest nvtool.exe.manifest -ico ./assets/embed/icon.ico -arch amd64 -o rsrc.syso
go build -ldflags="-s -w -H windowsgui -linkmode external -extldflags -static" .
rm rsrc.syso

Screenshots

https://developer.nvidia.com/video-encode-and-decode-gpu-support-matrix-new

Options Reference

Preset

Encode quality preset.

• P1 (= performance)
• P2
• P3
• P4 (= default)
• P5
• P6
• P7 (= quality)

Quality

Set target quality when using VBR mode. (0.0-51.0, 0 = automatic)

Bitrate

Set bitrate in kbps.

To enable constant quality mode, set the value to 0.

AQ

• temporal - Enable adaptive quantization between frames.

• spatial - Enable adaptive quantization in frame.

Strength

Specify the AQ strength. 1 = weak, 15 = strong, 0 = auto

HEVC

Specify the output codec as HEVC, default is h264.

Resize

Set output resolution. When it is different from the input resolution, HW/GPU resizer (Lanczos 4x4) will be activated automatically.

If not specified, it will be same as the input resolution. (no resize)

Special Values

• 0 ... Will be same as input.
• One of width or height as negative value Will be resized keeping aspect ratio, and a value which could be divided by the negative value will be chosen.

Example

input 1280x720 Resize 1024x576 -> normal Resize 960x0 -> resize to 960x720 (0 will be replaced to 720, same as input) Resize 1920x-2 -> resize to 1920x1080 (calculated to keep aspect ratio)

Filter Reference:

KNN

Strong noise reduction filter.

Parameters

• radius= (default=3, 1-5) radius of filter.
• strength= (default=0.08, 0.0 - 1.0) Strength of the filter.
• lerp= (default=0.2, 0.0 - 1.0) The degree of blending of the original pixel to the noise reduction pixel.
• th_lerp= (default=0.8, 0.0 - 1.0) Threshold of edge detection.

PMD

Rather weak noise reduction by modified pmd method, aimed to preserve edge while noise reduction.

Parameters

• apply_count= (default=2, 1- ) Number of times to apply the filter.
• strength= (default=100, 0-100) Strength of the filter.
• threshold= (default=100, 0-255) Threshold for edge detection. The smaller the value is, more will be detected as edge, which will be preserved.

Unsharp

unsharp filter, for edge and detail enhancement.

Parameters

• radius= (default=3, 1-9) radius of edge / detail detection.
• weight= (default=0.5, 0-10) Strength of edge and detail emphasis. Larger value will result stronger effect.
• threshold= (default=10.0, 0-255) Threshold for edge and detail detection.

EdgeLevel

Edge level adjustment filter, for edge sharpening.

Parameters

• strength= (default=5.0, -31 - 31) Strength of edge sharpening. Larger value will result stronger edge sharpening.
• threshold= (default=20.0, 0 - 255) Noise threshold to avoid enhancing noise. Larger value will treat larger luminance change as noise.
• black= (default=0.0, 0-31) strength to enhance dark part of edges.
• white= (default=0.0, 0-31) strength to enhance bright part of edges.

Contribution

Give a ⭐️ if this project helped you.

All kinds of pull request are more then welcome!