Skip to content
BranchesTags

Repository files navigation

pixelforge

CICrates.ioDocumentation

A Vulkan-based video encoding library for Rust, supporting H.264, H.265, and AV1 codecs.

Features

  • Hardware-accelerated video encoding using Vulkan Video extensions.
  • Multiple codec support: H.264/AVC, H.265/HEVC, AV1.
  • GPU color conversion: RGB/BGR → YUV via Vulkan compute shaders (BT.709, BT.2020, sRGB→BT.2020+PQ, scRGB-linear→BT.2020+PQ).
  • HDR support: 10-bit encoding (P010, YUV444P10), PQ transfer function, BT.2020 color space.
  • GPU-native API: Encode directly from Vulkan images (vk::Image).
  • Flexible configuration: Rate control (CBR, VBR, CQP), quality levels, GOP settings.
  • Multiple input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16).
  • Utility helpers: [InputImage] for easy YUV data upload to GPU.
  • Optional DMA-BUF support: Zero-copy image import from external processes (Linux only).

Note: B-frame support is not yet implemented. Setting b_frame_count > 0 will panic.

Supported Codecs

CodecEncode
H.264/AVC✓
H.265/HEVC✓
AV1✓

Requirements

  • A GPU with Vulkan video encoding support (e.g., NVIDIA RTX series, AMD RDNA2+, Intel Arc)

Installation

Add this to your Cargo.toml:

[dependencies]
pixelforge = "0.1"

Optional Features

FeatureDescription
dmabufEnable DMA-BUF support for zero-copy image import from external processes (Linux only). Adds Vulkan extensions: VK_KHR_external_memory, VK_KHR_external_memory_fd, VK_EXT_external_memory_dma_buf, VK_EXT_image_drm_format_modifier.

To enable DMA-BUF support:

[dependencies]
pixelforge = { version = "0.1", features = ["dmabuf"] }

Quick Start

Query Capabilities

use pixelforge::{Codec,VideoContextBuilder};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("My App").build()?;for codec in[Codec::H264,Codec::H265,Codec::AV1]{println!("{:?}: encode={}",
codec,
context.supports_encode(codec));}Ok(())}

Encoding Video

use pixelforge::{Codec,EncodeBitDepth,EncodeConfig,Encoder,InputImage,PixelFormat,RateControlMode,VideoContextBuilder,};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("Encoder Example").require_encode(Codec::H264).build()?;let config = EncodeConfig::h264(1920,1080).with_rate_control(RateControlMode::Vbr).with_target_bitrate(5_000_000).with_frame_rate(30,1).with_gop_size(60);// Create an InputImage helper for uploading YUV data to the GPU.letmut input_image = InputImage::new(
context.clone(),Codec::H264,1920,1080,EncodeBitDepth::Eight,PixelFormat::Yuv420,)?;letmut encoder = Encoder::new(context, config)?;// For each frame: upload YUV data and encode.// let yuv_data: &[u8] = ...; // YUV420 frame data// input_image.upload_yuv420(yuv_data)?;// let packets = encoder.encode(input_image.image())?;Ok(())}

Color Conversion (RGB → YUV)

PixelForge includes a GPU compute shader for converting RGB input to YUV output, supporting multiple color spaces:

Color SpaceDescription
Bt709Standard SDR (BT.709 coefficients)
Bt2020HDR passthrough (BT.2020 coefficients, PQ-encoded input)
SrgbToBt2020PqSDR-in-HDR (sRGB → linear → BT.2020 gamut → PQ OETF)
Bt709LinearToBt2020PqscRGB HDR (linear BT.709 → BT.2020 gamut → PQ OETF). sdr_reference_white_nits sets the interpretation of 1.0; per the scRGB spec (IEC 61966-2-2), 80 nits.

Supported input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16). Supported output formats: NV12 (8-bit), I420 (8-bit), YUV444 (8-bit), P010 (10-bit), YUV444P10 (10-bit).

use pixelforge::{ColorConverter,ColorConverterConfig,ColorSpace,InputFormat,OutputFormat,VideoContextBuilder};let context = VideoContextBuilder::new().app_name("Color Converter").build()?;letmut config = ColorConverterConfig::new(1920,1080,InputFormat::BGRx,OutputFormat::NV12);
config.color_space = ColorSpace::SrgbToBt2020Pq;letmut converter = ColorConverter::new(context.clone(), config)?;// converter.convert(input_image, output_buffer)?;

Benchmarking

Run the encode latency benchmark with:

cargo run --example encode_bench

Examples

Run the examples with:

# Query codec capabilities
cargo run --example query_capabilities
# H.264 encoding example
cargo run --example encode_h264
# H.265 encoding example
cargo run --example encode_h265
# AV1 encoding example
cargo run --example encode_av1
# Verify all codecs and formats
cargo run --example verify_all

Shader Development

The color conversion shader is precompiled to SPIR-V and embedded at build time. See shader/README.md for details on editing and recompiling shaders.

TODO's

  1. [] Decoding.
  2. [] B-frames support.

Contributing

Contributions are welcome! Please feel free to submit a Pull Request.

Acknowledgement

This project was heavily inspired by the vk_video_samples repository by NVIDIA, which provided invaluable reference for Vulkan Video encoding.

License: BSD-2-Clause

About

A Vulkan-based video encoding library for Rust

Resources

Readme
BSD-2-Clause license
Activity

Stars

9 stars

Watchers

3 watching

Forks

11 forks
Report repository

Releases

Packages

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
GitHub - hgaiser/pixelforge: A Vulkan-based video encoding library for Rust · GitHub
Skip to content
BranchesTags
Repository files navigation
pixelforge
CICrates.ioDocumentation
A Vulkan-based video encoding library for Rust, supporting H.264, H.265, and AV1 codecs.
Features
  • Hardware-accelerated video encoding using Vulkan Video extensions.
  • Multiple codec support: H.264/AVC, H.265/HEVC, AV1.
  • GPU color conversion: RGB/BGR → YUV via Vulkan compute shaders (BT.709, BT.2020, sRGB→BT.2020+PQ, scRGB-linear→BT.2020+PQ).
  • HDR support: 10-bit encoding (P010, YUV444P10), PQ transfer function, BT.2020 color space.
  • GPU-native API: Encode directly from Vulkan images (vk::Image).
  • Flexible configuration: Rate control (CBR, VBR, CQP), quality levels, GOP settings.
  • Multiple input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16).
  • Utility helpers: [InputImage] for easy YUV data upload to GPU.
  • Optional DMA-BUF support: Zero-copy image import from external processes (Linux only).
Note: B-frame support is not yet implemented. Setting b_frame_count > 0 will panic.
Supported Codecs
CodecEncode
H.264/AVC✓
H.265/HEVC✓
AV1✓
Requirements
  • A GPU with Vulkan video encoding support (e.g., NVIDIA RTX series, AMD RDNA2+, Intel Arc)
Installation
Add this to your Cargo.toml:
[dependencies]
pixelforge = "0.1"
Optional Features
FeatureDescription
dmabufEnable DMA-BUF support for zero-copy image import from external processes (Linux only). Adds Vulkan extensions: VK_KHR_external_memory, VK_KHR_external_memory_fd, VK_EXT_external_memory_dma_buf, VK_EXT_image_drm_format_modifier.
To enable DMA-BUF support:
[dependencies]
pixelforge = { version = "0.1", features = ["dmabuf"] }
Quick Start
Query Capabilities
use pixelforge::{Codec,VideoContextBuilder};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("My App").build()?;for codec in[Codec::H264,Codec::H265,Codec::AV1]{println!("{:?}: encode={}",
codec,
context.supports_encode(codec));}Ok(())}
Encoding Video
use pixelforge::{Codec,EncodeBitDepth,EncodeConfig,Encoder,InputImage,PixelFormat,RateControlMode,VideoContextBuilder,};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("Encoder Example").require_encode(Codec::H264).build()?;let config = EncodeConfig::h264(1920,1080).with_rate_control(RateControlMode::Vbr).with_target_bitrate(5_000_000).with_frame_rate(30,1).with_gop_size(60);// Create an InputImage helper for uploading YUV data to the GPU.letmut input_image = InputImage::new(
context.clone(),Codec::H264,1920,1080,EncodeBitDepth::Eight,PixelFormat::Yuv420,)?;letmut encoder = Encoder::new(context, config)?;// For each frame: upload YUV data and encode.// let yuv_data: &[u8] = ...; // YUV420 frame data// input_image.upload_yuv420(yuv_data)?;// let packets = encoder.encode(input_image.image())?;Ok(())}
Color Conversion (RGB → YUV)
PixelForge includes a GPU compute shader for converting RGB input to YUV output, supporting multiple color spaces:
Color SpaceDescription
Bt709Standard SDR (BT.709 coefficients)
Bt2020HDR passthrough (BT.2020 coefficients, PQ-encoded input)
SrgbToBt2020PqSDR-in-HDR (sRGB → linear → BT.2020 gamut → PQ OETF)
Bt709LinearToBt2020PqscRGB HDR (linear BT.709 → BT.2020 gamut → PQ OETF). sdr_reference_white_nits sets the interpretation of 1.0; per the scRGB spec (IEC 61966-2-2), 80 nits.
Supported input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16).
Supported output formats: NV12 (8-bit), I420 (8-bit), YUV444 (8-bit), P010 (10-bit), YUV444P10 (10-bit).
use pixelforge::{ColorConverter,ColorConverterConfig,ColorSpace,InputFormat,OutputFormat,VideoContextBuilder};let context = VideoContextBuilder::new().app_name("Color Converter").build()?;letmut config = ColorConverterConfig::new(1920,1080,InputFormat::BGRx,OutputFormat::NV12);
config.color_space = ColorSpace::SrgbToBt2020Pq;letmut converter = ColorConverter::new(context.clone(), config)?;// converter.convert(input_image, output_buffer)?;
Benchmarking
Run the encode latency benchmark with:
cargo run --example encode_bench

Examples
Run the examples with:
# Query codec capabilities
cargo run --example query_capabilities
# H.264 encoding example
cargo run --example encode_h264
# H.265 encoding example
cargo run --example encode_h265
# AV1 encoding example
cargo run --example encode_av1
# Verify all codecs and formats
cargo run --example verify_all

Shader Development
The color conversion shader is precompiled to SPIR-V and embedded at build time.
See shader/README.md for details on editing and recompiling shaders.
TODO's
  1. [] Decoding.
  2. [] B-frames support.
Contributing
Contributions are welcome! Please feel free to submit a Pull Request.
Acknowledgement
This project was heavily inspired by the vk_video_samples
repository by NVIDIA, which provided invaluable reference for Vulkan Video encoding.
License: BSD-2-Clause
About
A Vulkan-based video encoding library for Rust
Resources
Readme
BSD-2-Clause license
Activity
Stars
9 stars
Watchers
3 watching
Forks
11 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - hgaiser/pixelforge: A Vulkan-based video encoding library for Rust · GitHub
Skip to content
BranchesTags
Repository files navigation
pixelforge
CICrates.ioDocumentation
A Vulkan-based video encoding library for Rust, supporting H.264, H.265, and AV1 codecs.
Features
  • Hardware-accelerated video encoding using Vulkan Video extensions.
  • Multiple codec support: H.264/AVC, H.265/HEVC, AV1.
  • GPU color conversion: RGB/BGR → YUV via Vulkan compute shaders (BT.709, BT.2020, sRGB→BT.2020+PQ, scRGB-linear→BT.2020+PQ).
  • HDR support: 10-bit encoding (P010, YUV444P10), PQ transfer function, BT.2020 color space.
  • GPU-native API: Encode directly from Vulkan images (vk::Image).
  • Flexible configuration: Rate control (CBR, VBR, CQP), quality levels, GOP settings.
  • Multiple input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16).
  • Utility helpers: [InputImage] for easy YUV data upload to GPU.
  • Optional DMA-BUF support: Zero-copy image import from external processes (Linux only).
Note: B-frame support is not yet implemented. Setting b_frame_count > 0 will panic.
Supported Codecs
CodecEncode
H.264/AVC✓
H.265/HEVC✓
AV1✓
Requirements
  • A GPU with Vulkan video encoding support (e.g., NVIDIA RTX series, AMD RDNA2+, Intel Arc)
Installation
Add this to your Cargo.toml:
[dependencies]
pixelforge = "0.1"
Optional Features
FeatureDescription
dmabufEnable DMA-BUF support for zero-copy image import from external processes (Linux only). Adds Vulkan extensions: VK_KHR_external_memory, VK_KHR_external_memory_fd, VK_EXT_external_memory_dma_buf, VK_EXT_image_drm_format_modifier.
To enable DMA-BUF support:
[dependencies]
pixelforge = { version = "0.1", features = ["dmabuf"] }
Quick Start
Query Capabilities
use pixelforge::{Codec,VideoContextBuilder};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("My App").build()?;for codec in[Codec::H264,Codec::H265,Codec::AV1]{println!("{:?}: encode={}",
codec,
context.supports_encode(codec));}Ok(())}
Encoding Video
use pixelforge::{Codec,EncodeBitDepth,EncodeConfig,Encoder,InputImage,PixelFormat,RateControlMode,VideoContextBuilder,};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("Encoder Example").require_encode(Codec::H264).build()?;let config = EncodeConfig::h264(1920,1080).with_rate_control(RateControlMode::Vbr).with_target_bitrate(5_000_000).with_frame_rate(30,1).with_gop_size(60);// Create an InputImage helper for uploading YUV data to the GPU.letmut input_image = InputImage::new(
context.clone(),Codec::H264,1920,1080,EncodeBitDepth::Eight,PixelFormat::Yuv420,)?;letmut encoder = Encoder::new(context, config)?;// For each frame: upload YUV data and encode.// let yuv_data: &[u8] = ...; // YUV420 frame data// input_image.upload_yuv420(yuv_data)?;// let packets = encoder.encode(input_image.image())?;Ok(())}
Color Conversion (RGB → YUV)
PixelForge includes a GPU compute shader for converting RGB input to YUV output, supporting multiple color spaces:
Color SpaceDescription
Bt709Standard SDR (BT.709 coefficients)
Bt2020HDR passthrough (BT.2020 coefficients, PQ-encoded input)
SrgbToBt2020PqSDR-in-HDR (sRGB → linear → BT.2020 gamut → PQ OETF)
Bt709LinearToBt2020PqscRGB HDR (linear BT.709 → BT.2020 gamut → PQ OETF). sdr_reference_white_nits sets the interpretation of 1.0; per the scRGB spec (IEC 61966-2-2), 80 nits.
Supported input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16).
Supported output formats: NV12 (8-bit), I420 (8-bit), YUV444 (8-bit), P010 (10-bit), YUV444P10 (10-bit).
use pixelforge::{ColorConverter,ColorConverterConfig,ColorSpace,InputFormat,OutputFormat,VideoContextBuilder};let context = VideoContextBuilder::new().app_name("Color Converter").build()?;letmut config = ColorConverterConfig::new(1920,1080,InputFormat::BGRx,OutputFormat::NV12);
config.color_space = ColorSpace::SrgbToBt2020Pq;letmut converter = ColorConverter::new(context.clone(), config)?;// converter.convert(input_image, output_buffer)?;
Benchmarking
Run the encode latency benchmark with:
cargo run --example encode_bench

Examples
Run the examples with:
# Query codec capabilities
cargo run --example query_capabilities
# H.264 encoding example
cargo run --example encode_h264
# H.265 encoding example
cargo run --example encode_h265
# AV1 encoding example
cargo run --example encode_av1
# Verify all codecs and formats
cargo run --example verify_all

Shader Development
The color conversion shader is precompiled to SPIR-V and embedded at build time.
See shader/README.md for details on editing and recompiling shaders.
TODO's
  1. [] Decoding.
  2. [] B-frames support.
Contributing
Contributions are welcome! Please feel free to submit a Pull Request.
Acknowledgement
This project was heavily inspired by the vk_video_samples
repository by NVIDIA, which provided invaluable reference for Vulkan Video encoding.
License: BSD-2-Clause
About
A Vulkan-based video encoding library for Rust
Resources
Readme
BSD-2-Clause license
Activity
Stars
9 stars
Watchers
3 watching
Forks
11 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - hgaiser/pixelforge: A Vulkan-based video encoding library for Rust · GitHub
Skip to content
BranchesTags
Repository files navigation
pixelforge
CICrates.ioDocumentation
A Vulkan-based video encoding library for Rust, supporting H.264, H.265, and AV1 codecs.
Features
  • Hardware-accelerated video encoding using Vulkan Video extensions.
  • Multiple codec support: H.264/AVC, H.265/HEVC, AV1.
  • GPU color conversion: RGB/BGR → YUV via Vulkan compute shaders (BT.709, BT.2020, sRGB→BT.2020+PQ, scRGB-linear→BT.2020+PQ).
  • HDR support: 10-bit encoding (P010, YUV444P10), PQ transfer function, BT.2020 color space.
  • GPU-native API: Encode directly from Vulkan images (vk::Image).
  • Flexible configuration: Rate control (CBR, VBR, CQP), quality levels, GOP settings.
  • Multiple input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16).
  • Utility helpers: [InputImage] for easy YUV data upload to GPU.
  • Optional DMA-BUF support: Zero-copy image import from external processes (Linux only).
Note: B-frame support is not yet implemented. Setting b_frame_count > 0 will panic.
Supported Codecs
CodecEncode
H.264/AVC✓
H.265/HEVC✓
AV1✓
Requirements
  • A GPU with Vulkan video encoding support (e.g., NVIDIA RTX series, AMD RDNA2+, Intel Arc)
Installation
Add this to your Cargo.toml:
[dependencies]
pixelforge = "0.1"
Optional Features
FeatureDescription
dmabufEnable DMA-BUF support for zero-copy image import from external processes (Linux only). Adds Vulkan extensions: VK_KHR_external_memory, VK_KHR_external_memory_fd, VK_EXT_external_memory_dma_buf, VK_EXT_image_drm_format_modifier.
To enable DMA-BUF support:
[dependencies]
pixelforge = { version = "0.1", features = ["dmabuf"] }
Quick Start
Query Capabilities
use pixelforge::{Codec,VideoContextBuilder};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("My App").build()?;for codec in[Codec::H264,Codec::H265,Codec::AV1]{println!("{:?}: encode={}",
codec,
context.supports_encode(codec));}Ok(())}
Encoding Video
use pixelforge::{Codec,EncodeBitDepth,EncodeConfig,Encoder,InputImage,PixelFormat,RateControlMode,VideoContextBuilder,};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("Encoder Example").require_encode(Codec::H264).build()?;let config = EncodeConfig::h264(1920,1080).with_rate_control(RateControlMode::Vbr).with_target_bitrate(5_000_000).with_frame_rate(30,1).with_gop_size(60);// Create an InputImage helper for uploading YUV data to the GPU.letmut input_image = InputImage::new(
context.clone(),Codec::H264,1920,1080,EncodeBitDepth::Eight,PixelFormat::Yuv420,)?;letmut encoder = Encoder::new(context, config)?;// For each frame: upload YUV data and encode.// let yuv_data: &[u8] = ...; // YUV420 frame data// input_image.upload_yuv420(yuv_data)?;// let packets = encoder.encode(input_image.image())?;Ok(())}
Color Conversion (RGB → YUV)
PixelForge includes a GPU compute shader for converting RGB input to YUV output, supporting multiple color spaces:
Color SpaceDescription
Bt709Standard SDR (BT.709 coefficients)
Bt2020HDR passthrough (BT.2020 coefficients, PQ-encoded input)
SrgbToBt2020PqSDR-in-HDR (sRGB → linear → BT.2020 gamut → PQ OETF)
Bt709LinearToBt2020PqscRGB HDR (linear BT.709 → BT.2020 gamut → PQ OETF). sdr_reference_white_nits sets the interpretation of 1.0; per the scRGB spec (IEC 61966-2-2), 80 nits.
Supported input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16).
Supported output formats: NV12 (8-bit), I420 (8-bit), YUV444 (8-bit), P010 (10-bit), YUV444P10 (10-bit).
use pixelforge::{ColorConverter,ColorConverterConfig,ColorSpace,InputFormat,OutputFormat,VideoContextBuilder};let context = VideoContextBuilder::new().app_name("Color Converter").build()?;letmut config = ColorConverterConfig::new(1920,1080,InputFormat::BGRx,OutputFormat::NV12);
config.color_space = ColorSpace::SrgbToBt2020Pq;letmut converter = ColorConverter::new(context.clone(), config)?;// converter.convert(input_image, output_buffer)?;
Benchmarking
Run the encode latency benchmark with:
cargo run --example encode_bench

Examples
Run the examples with:
# Query codec capabilities
cargo run --example query_capabilities
# H.264 encoding example
cargo run --example encode_h264
# H.265 encoding example
cargo run --example encode_h265
# AV1 encoding example
cargo run --example encode_av1
# Verify all codecs and formats
cargo run --example verify_all

Shader Development
The color conversion shader is precompiled to SPIR-V and embedded at build time.
See shader/README.md for details on editing and recompiling shaders.
TODO's
  1. [] Decoding.
  2. [] B-frames support.
Contributing
Contributions are welcome! Please feel free to submit a Pull Request.
Acknowledgement
This project was heavily inspired by the vk_video_samples
repository by NVIDIA, which provided invaluable reference for Vulkan Video encoding.
License: BSD-2-Clause
About
A Vulkan-based video encoding library for Rust
Resources
Readme
BSD-2-Clause license
Activity
Stars
9 stars
Watchers
3 watching
Forks
11 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
GitHub - hgaiser/pixelforge: A Vulkan-based video encoding library for Rust · GitHub
Skip to content
BranchesTags
Repository files navigation
pixelforge
CICrates.ioDocumentation
A Vulkan-based video encoding library for Rust, supporting H.264, H.265, and AV1 codecs.
Features
  • Hardware-accelerated video encoding using Vulkan Video extensions.
  • Multiple codec support: H.264/AVC, H.265/HEVC, AV1.
  • GPU color conversion: RGB/BGR → YUV via Vulkan compute shaders (BT.709, BT.2020, sRGB→BT.2020+PQ, scRGB-linear→BT.2020+PQ).
  • HDR support: 10-bit encoding (P010, YUV444P10), PQ transfer function, BT.2020 color space.
  • GPU-native API: Encode directly from Vulkan images (vk::Image).
  • Flexible configuration: Rate control (CBR, VBR, CQP), quality levels, GOP settings.
  • Multiple input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16).
  • Utility helpers: [InputImage] for easy YUV data upload to GPU.
  • Optional DMA-BUF support: Zero-copy image import from external processes (Linux only).
Note: B-frame support is not yet implemented. Setting b_frame_count > 0 will panic.
Supported Codecs
CodecEncode
H.264/AVC✓
H.265/HEVC✓
AV1✓
Requirements
  • A GPU with Vulkan video encoding support (e.g., NVIDIA RTX series, AMD RDNA2+, Intel Arc)
Installation
Add this to your Cargo.toml:
[dependencies]
pixelforge = "0.1"
Optional Features
FeatureDescription
dmabufEnable DMA-BUF support for zero-copy image import from external processes (Linux only). Adds Vulkan extensions: VK_KHR_external_memory, VK_KHR_external_memory_fd, VK_EXT_external_memory_dma_buf, VK_EXT_image_drm_format_modifier.
To enable DMA-BUF support:
[dependencies]
pixelforge = { version = "0.1", features = ["dmabuf"] }
Quick Start
Query Capabilities
use pixelforge::{Codec,VideoContextBuilder};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("My App").build()?;for codec in[Codec::H264,Codec::H265,Codec::AV1]{println!("{:?}: encode={}",
codec,
context.supports_encode(codec));}Ok(())}
Encoding Video
use pixelforge::{Codec,EncodeBitDepth,EncodeConfig,Encoder,InputImage,PixelFormat,RateControlMode,VideoContextBuilder,};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("Encoder Example").require_encode(Codec::H264).build()?;let config = EncodeConfig::h264(1920,1080).with_rate_control(RateControlMode::Vbr).with_target_bitrate(5_000_000).with_frame_rate(30,1).with_gop_size(60);// Create an InputImage helper for uploading YUV data to the GPU.letmut input_image = InputImage::new(
context.clone(),Codec::H264,1920,1080,EncodeBitDepth::Eight,PixelFormat::Yuv420,)?;letmut encoder = Encoder::new(context, config)?;// For each frame: upload YUV data and encode.// let yuv_data: &[u8] = ...; // YUV420 frame data// input_image.upload_yuv420(yuv_data)?;// let packets = encoder.encode(input_image.image())?;Ok(())}
Color Conversion (RGB → YUV)
PixelForge includes a GPU compute shader for converting RGB input to YUV output, supporting multiple color spaces:
Color SpaceDescription
Bt709Standard SDR (BT.709 coefficients)
Bt2020HDR passthrough (BT.2020 coefficients, PQ-encoded input)
SrgbToBt2020PqSDR-in-HDR (sRGB → linear → BT.2020 gamut → PQ OETF)
Bt709LinearToBt2020PqscRGB HDR (linear BT.709 → BT.2020 gamut → PQ OETF). sdr_reference_white_nits sets the interpretation of 1.0; per the scRGB spec (IEC 61966-2-2), 80 nits.
Supported input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16).
Supported output formats: NV12 (8-bit), I420 (8-bit), YUV444 (8-bit), P010 (10-bit), YUV444P10 (10-bit).
use pixelforge::{ColorConverter,ColorConverterConfig,ColorSpace,InputFormat,OutputFormat,VideoContextBuilder};let context = VideoContextBuilder::new().app_name("Color Converter").build()?;letmut config = ColorConverterConfig::new(1920,1080,InputFormat::BGRx,OutputFormat::NV12);
config.color_space = ColorSpace::SrgbToBt2020Pq;letmut converter = ColorConverter::new(context.clone(), config)?;// converter.convert(input_image, output_buffer)?;
Benchmarking
Run the encode latency benchmark with:
cargo run --example encode_bench

Examples
Run the examples with:
# Query codec capabilities
cargo run --example query_capabilities
# H.264 encoding example
cargo run --example encode_h264
# H.265 encoding example
cargo run --example encode_h265
# AV1 encoding example
cargo run --example encode_av1
# Verify all codecs and formats
cargo run --example verify_all

Shader Development
The color conversion shader is precompiled to SPIR-V and embedded at build time.
See shader/README.md for details on editing and recompiling shaders.
TODO's
  1. [] Decoding.
  2. [] B-frames support.
Contributing
Contributions are welcome! Please feel free to submit a Pull Request.
Acknowledgement
This project was heavily inspired by the vk_video_samples
repository by NVIDIA, which provided invaluable reference for Vulkan Video encoding.
License: BSD-2-Clause
About
A Vulkan-based video encoding library for Rust
Resources
Readme
BSD-2-Clause license
Activity
Stars
9 stars
Watchers
3 watching
Forks
11 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - hgaiser/pixelforge: A Vulkan-based video encoding library for Rust · GitHub
Skip to content
BranchesTags
Repository files navigation
pixelforge
CICrates.ioDocumentation
A Vulkan-based video encoding library for Rust, supporting H.264, H.265, and AV1 codecs.
Features
  • Hardware-accelerated video encoding using Vulkan Video extensions.
  • Multiple codec support: H.264/AVC, H.265/HEVC, AV1.
  • GPU color conversion: RGB/BGR → YUV via Vulkan compute shaders (BT.709, BT.2020, sRGB→BT.2020+PQ, scRGB-linear→BT.2020+PQ).
  • HDR support: 10-bit encoding (P010, YUV444P10), PQ transfer function, BT.2020 color space.
  • GPU-native API: Encode directly from Vulkan images (vk::Image).
  • Flexible configuration: Rate control (CBR, VBR, CQP), quality levels, GOP settings.
  • Multiple input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16).
  • Utility helpers: [InputImage] for easy YUV data upload to GPU.
  • Optional DMA-BUF support: Zero-copy image import from external processes (Linux only).
Note: B-frame support is not yet implemented. Setting b_frame_count > 0 will panic.
Supported Codecs
CodecEncode
H.264/AVC✓
H.265/HEVC✓
AV1✓
Requirements
  • A GPU with Vulkan video encoding support (e.g., NVIDIA RTX series, AMD RDNA2+, Intel Arc)
Installation
Add this to your Cargo.toml:
[dependencies]
pixelforge = "0.1"
Optional Features
FeatureDescription
dmabufEnable DMA-BUF support for zero-copy image import from external processes (Linux only). Adds Vulkan extensions: VK_KHR_external_memory, VK_KHR_external_memory_fd, VK_EXT_external_memory_dma_buf, VK_EXT_image_drm_format_modifier.
To enable DMA-BUF support:
[dependencies]
pixelforge = { version = "0.1", features = ["dmabuf"] }
Quick Start
Query Capabilities
use pixelforge::{Codec,VideoContextBuilder};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("My App").build()?;for codec in[Codec::H264,Codec::H265,Codec::AV1]{println!("{:?}: encode={}",
codec,
context.supports_encode(codec));}Ok(())}
Encoding Video
use pixelforge::{Codec,EncodeBitDepth,EncodeConfig,Encoder,InputImage,PixelFormat,RateControlMode,VideoContextBuilder,};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("Encoder Example").require_encode(Codec::H264).build()?;let config = EncodeConfig::h264(1920,1080).with_rate_control(RateControlMode::Vbr).with_target_bitrate(5_000_000).with_frame_rate(30,1).with_gop_size(60);// Create an InputImage helper for uploading YUV data to the GPU.letmut input_image = InputImage::new(
context.clone(),Codec::H264,1920,1080,EncodeBitDepth::Eight,PixelFormat::Yuv420,)?;letmut encoder = Encoder::new(context, config)?;// For each frame: upload YUV data and encode.// let yuv_data: &[u8] = ...; // YUV420 frame data// input_image.upload_yuv420(yuv_data)?;// let packets = encoder.encode(input_image.image())?;Ok(())}
Color Conversion (RGB → YUV)
PixelForge includes a GPU compute shader for converting RGB input to YUV output, supporting multiple color spaces:
Color SpaceDescription
Bt709Standard SDR (BT.709 coefficients)
Bt2020HDR passthrough (BT.2020 coefficients, PQ-encoded input)
SrgbToBt2020PqSDR-in-HDR (sRGB → linear → BT.2020 gamut → PQ OETF)
Bt709LinearToBt2020PqscRGB HDR (linear BT.709 → BT.2020 gamut → PQ OETF). sdr_reference_white_nits sets the interpretation of 1.0; per the scRGB spec (IEC 61966-2-2), 80 nits.
Supported input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16).
Supported output formats: NV12 (8-bit), I420 (8-bit), YUV444 (8-bit), P010 (10-bit), YUV444P10 (10-bit).
use pixelforge::{ColorConverter,ColorConverterConfig,ColorSpace,InputFormat,OutputFormat,VideoContextBuilder};let context = VideoContextBuilder::new().app_name("Color Converter").build()?;letmut config = ColorConverterConfig::new(1920,1080,InputFormat::BGRx,OutputFormat::NV12);
config.color_space = ColorSpace::SrgbToBt2020Pq;letmut converter = ColorConverter::new(context.clone(), config)?;// converter.convert(input_image, output_buffer)?;
Benchmarking
Run the encode latency benchmark with:
cargo run --example encode_bench

Examples
Run the examples with:
# Query codec capabilities
cargo run --example query_capabilities
# H.264 encoding example
cargo run --example encode_h264
# H.265 encoding example
cargo run --example encode_h265
# AV1 encoding example
cargo run --example encode_av1
# Verify all codecs and formats
cargo run --example verify_all

Shader Development
The color conversion shader is precompiled to SPIR-V and embedded at build time.
See shader/README.md for details on editing and recompiling shaders.
TODO's
  1. [] Decoding.
  2. [] B-frames support.
Contributing
Contributions are welcome! Please feel free to submit a Pull Request.
Acknowledgement
This project was heavily inspired by the vk_video_samples
repository by NVIDIA, which provided invaluable reference for Vulkan Video encoding.
License: BSD-2-Clause
About
A Vulkan-based video encoding library for Rust
Resources
Readme
BSD-2-Clause license
Activity
Stars
9 stars
Watchers
3 watching
Forks
11 forks
Report repository
Releases
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
})();
GitHub - hgaiser/pixelforge: A Vulkan-based video encoding library for Rust · GitHub
Skip to content
BranchesTags
Repository files navigation
pixelforge
CICrates.ioDocumentation
A Vulkan-based video encoding library for Rust, supporting H.264, H.265, and AV1 codecs.
Features
  • Hardware-accelerated video encoding using Vulkan Video extensions.
  • Multiple codec support: H.264/AVC, H.265/HEVC, AV1.
  • GPU color conversion: RGB/BGR → YUV via Vulkan compute shaders (BT.709, BT.2020, sRGB→BT.2020+PQ, scRGB-linear→BT.2020+PQ).
  • HDR support: 10-bit encoding (P010, YUV444P10), PQ transfer function, BT.2020 color space.
  • GPU-native API: Encode directly from Vulkan images (vk::Image).
  • Flexible configuration: Rate control (CBR, VBR, CQP), quality levels, GOP settings.
  • Multiple input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16).
  • Utility helpers: [InputImage] for easy YUV data upload to GPU.
  • Optional DMA-BUF support: Zero-copy image import from external processes (Linux only).
Note: B-frame support is not yet implemented. Setting b_frame_count > 0 will panic.
Supported Codecs
CodecEncode
H.264/AVC✓
H.265/HEVC✓
AV1✓
Requirements
  • A GPU with Vulkan video encoding support (e.g., NVIDIA RTX series, AMD RDNA2+, Intel Arc)
Installation
Add this to your Cargo.toml:
[dependencies]
pixelforge = "0.1"
Optional Features
FeatureDescription
dmabufEnable DMA-BUF support for zero-copy image import from external processes (Linux only). Adds Vulkan extensions: VK_KHR_external_memory, VK_KHR_external_memory_fd, VK_EXT_external_memory_dma_buf, VK_EXT_image_drm_format_modifier.
To enable DMA-BUF support:
[dependencies]
pixelforge = { version = "0.1", features = ["dmabuf"] }
Quick Start
Query Capabilities
use pixelforge::{Codec,VideoContextBuilder};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("My App").build()?;for codec in[Codec::H264,Codec::H265,Codec::AV1]{println!("{:?}: encode={}",
codec,
context.supports_encode(codec));}Ok(())}
Encoding Video
use pixelforge::{Codec,EncodeBitDepth,EncodeConfig,Encoder,InputImage,PixelFormat,RateControlMode,VideoContextBuilder,};fnmain() -> Result<(),Box<dyn std::error::Error>>{let context = VideoContextBuilder::new().app_name("Encoder Example").require_encode(Codec::H264).build()?;let config = EncodeConfig::h264(1920,1080).with_rate_control(RateControlMode::Vbr).with_target_bitrate(5_000_000).with_frame_rate(30,1).with_gop_size(60);// Create an InputImage helper for uploading YUV data to the GPU.letmut input_image = InputImage::new(
context.clone(),Codec::H264,1920,1080,EncodeBitDepth::Eight,PixelFormat::Yuv420,)?;letmut encoder = Encoder::new(context, config)?;// For each frame: upload YUV data and encode.// let yuv_data: &[u8] = ...; // YUV420 frame data// input_image.upload_yuv420(yuv_data)?;// let packets = encoder.encode(input_image.image())?;Ok(())}
Color Conversion (RGB → YUV)
PixelForge includes a GPU compute shader for converting RGB input to YUV output, supporting multiple color spaces:
Color SpaceDescription
Bt709Standard SDR (BT.709 coefficients)
Bt2020HDR passthrough (BT.2020 coefficients, PQ-encoded input)
SrgbToBt2020PqSDR-in-HDR (sRGB → linear → BT.2020 gamut → PQ OETF)
Bt709LinearToBt2020PqscRGB HDR (linear BT.709 → BT.2020 gamut → PQ OETF). sdr_reference_white_nits sets the interpretation of 1.0; per the scRGB spec (IEC 61966-2-2), 80 nits.
Supported input formats: BGRx, RGBx, BGRA, RGBA, ABGR2101010 (10-bit packed), RGBA16F (FP16).
Supported output formats: NV12 (8-bit), I420 (8-bit), YUV444 (8-bit), P010 (10-bit), YUV444P10 (10-bit).
use pixelforge::{ColorConverter,ColorConverterConfig,ColorSpace,InputFormat,OutputFormat,VideoContextBuilder};let context = VideoContextBuilder::new().app_name("Color Converter").build()?;letmut config = ColorConverterConfig::new(1920,1080,InputFormat::BGRx,OutputFormat::NV12);
config.color_space = ColorSpace::SrgbToBt2020Pq;letmut converter = ColorConverter::new(context.clone(), config)?;// converter.convert(input_image, output_buffer)?;
Benchmarking
Run the encode latency benchmark with:
cargo run --example encode_bench

Examples
Run the examples with:
# Query codec capabilities
cargo run --example query_capabilities
# H.264 encoding example
cargo run --example encode_h264
# H.265 encoding example
cargo run --example encode_h265
# AV1 encoding example
cargo run --example encode_av1
# Verify all codecs and formats
cargo run --example verify_all

Shader Development
The color conversion shader is precompiled to SPIR-V and embedded at build time.
See shader/README.md for details on editing and recompiling shaders.
TODO's
  1. [] Decoding.
  2. [] B-frames support.
Contributing
Contributions are welcome! Please feel free to submit a Pull Request.
Acknowledgement
This project was heavily inspired by the vk_video_samples
repository by NVIDIA, which provided invaluable reference for Vulkan Video encoding.
License: BSD-2-Clause
About
A Vulkan-based video encoding library for Rust
Resources
Readme
BSD-2-Clause license
Activity
Stars
9 stars
Watchers
3 watching
Forks
11 forks
Report repository
Releases
Packages
Contributors
Languages