diff --git a/bin/app/Cargo.lock b/bin/app/Cargo.lock
index e23d6c5f1..a54dd517e 100644
--- a/bin/app/Cargo.lock
+++ b/bin/app/Cargo.lock
@@ -638,6 +638,26 @@ version = "1.1.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "628d228f918ac3b82fe590352cc719d30664a0c13ca3a60266fe02c7132d480a"
+[[package]]
+name = "atomig"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd0f41f4bb89f5c6450325e283fb78c4a3d042181b54f3855ee2f872919f9863"
+dependencies = [
+ "atomig-macro",
+]
+
+[[package]]
+name = "atomig-macro"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49c98dba06b920588de7d63f6acc23f1e6a9fade5fd6198e564506334fb5a4f5"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.111",
+]
+
[[package]]
name = "atty"
version = "0.2.14"
@@ -655,6 +675,19 @@ version = "1.5.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c08606f8c3cbf4ce6ec8e28fb0014a2c086708fe954eaa885384a6165172e7e8"
+[[package]]
+name = "av-data"
+version = "0.4.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fca67ba5d317924c02180c576157afd54babe48a76ebc66ce6d34bb8ba08308e"
+dependencies = [
+ "byte-slice-cast",
+ "bytes",
+ "num-derive",
+ "num-rational",
+ "num-traits",
+]
+
[[package]]
name = "av-scenechange"
version = "0.14.1"
@@ -880,6 +913,12 @@ version = "1.2.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "64fa3c856b712db6612c019f14756e64e4bcea13337a6b33b696333a9eaa2d06"
+[[package]]
+name = "byte-slice-cast"
+version = "1.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7575182f7272186991736b70173b0ea045398f984bf5ebbb3804736ce1330c9d"
+
[[package]]
name = "bytecount"
version = "0.6.9"
@@ -1538,6 +1577,7 @@ dependencies = [
"peniko",
"qoi",
"rand 0.8.5",
+ "rav1d",
"regex",
"semver",
"sled-overlay",
@@ -2788,7 +2828,7 @@ checksum = "6ea2d84b969582b4b1864a92dc5d27cd2b77b622a8d79306834f1be5ba20d84b"
dependencies = [
"cfg-if",
"crunchy",
- "zerocopy",
+ "zerocopy 0.8.30",
]
[[package]]
@@ -3673,6 +3713,16 @@ dependencies = [
"pxfm",
]
+[[package]]
+name = "nasm-rs"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34f676553b60ccbb76f41f9ae8f2428dac3f259ff8f1c2468a174778d06a1af9"
+dependencies = [
+ "jobserver",
+ "log",
+]
+
[[package]]
name = "ndk-sys"
version = "0.2.2"
@@ -4399,7 +4449,7 @@ version = "0.2.21"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "85eae3c4ed2f50dcfe72643da4befc30deadb458a9b590d720cde2f2b1e97da9"
dependencies = [
- "zerocopy",
+ "zerocopy 0.8.30",
]
[[package]]
@@ -4649,6 +4699,28 @@ dependencies = [
"winapi",
]
+[[package]]
+name = "rav1d"
+version = "1.1.0"
+source = "git+https://github.com/leo030303/rav1d?branch=add-rust-api#3ef268229621b863fd88a20cea226944d764dcd0"
+dependencies = [
+ "assert_matches",
+ "atomig",
+ "av-data",
+ "bitflags 2.10.0",
+ "cc",
+ "cfg-if",
+ "libc",
+ "nasm-rs",
+ "parking_lot 0.12.5",
+ "paste",
+ "raw-cpuid",
+ "static_assertions",
+ "strum",
+ "to_method",
+ "zerocopy 0.7.35",
+]
+
[[package]]
name = "rav1e"
version = "0.8.1"
@@ -4699,6 +4771,15 @@ dependencies = [
"rgb",
]
+[[package]]
+name = "raw-cpuid"
+version = "11.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "498cd0dc59d73224351ee52a95fee0f1a617a2eae0e7d9d720cc622c73a54186"
+dependencies = [
+ "bitflags 2.10.0",
+]
+
[[package]]
name = "rayon"
version = "1.11.0"
@@ -5865,6 +5946,12 @@ version = "0.1.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
+[[package]]
+name = "to_method"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c7c4ceeeca15c8384bbc3e011dbd8fccb7f068a440b752b7d9b32ceb0ca0e2e8"
+
[[package]]
name = "toml"
version = "0.5.11"
@@ -8066,13 +8153,34 @@ version = "0.3.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "6df3dc4292935e51816d896edcd52aa30bc297907c26167fec31e2b0c6a32524"
+[[package]]
+name = "zerocopy"
+version = "0.7.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1b9b4fd18abc82b8136838da5d50bae7bdea537c574d8dc1a34ed098d6c166f0"
+dependencies = [
+ "byteorder",
+ "zerocopy-derive 0.7.35",
+]
+
[[package]]
name = "zerocopy"
version = "0.8.30"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "4ea879c944afe8a2b25fef16bb4ba234f47c694565e97383b36f3a878219065c"
dependencies = [
- "zerocopy-derive",
+ "zerocopy-derive 0.8.30",
+]
+
+[[package]]
+name = "zerocopy-derive"
+version = "0.7.35"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fa4f8080344d4671fb4e831a13ad1e68092748387dfc4f55e356242fae12ce3e"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn 2.0.111",
]
[[package]]
diff --git a/bin/app/Cargo.toml b/bin/app/Cargo.toml
index fbda76248..2aa33c545 100644
--- a/bin/app/Cargo.toml
+++ b/bin/app/Cargo.toml
@@ -19,6 +19,11 @@ freetype-rs = { version = "0.37.0", features = ["bundled"] }
image = "0.25.5"
qoi = "0.4.1"
+
+# AV1 video decoding - rav1d with Rust API from leo030303 fork
+# Disable default features to avoid NASM dependency (asm)
+rav1d = { git = "https://github.com/leo030303/rav1d", branch = "add-rust-api", default-features = false, features = ["bitdepth_8"] }
+
tracing = "0.1.41"
glam = "0.29.2"
#zmq = "0.10.0"
diff --git a/bin/app/src/main.rs b/bin/app/src/main.rs
index c0630e8c3..bd47ba448 100644
--- a/bin/app/src/main.rs
+++ b/bin/app/src/main.rs
@@ -59,6 +59,7 @@ mod text;
mod text2;
mod ui;
mod util;
+mod video;
use crate::{
app::{App, AppPtr},
diff --git a/bin/app/src/plugin/mod.rs b/bin/app/src/plugin/mod.rs
index 822d3d84f..638f39d0c 100644
--- a/bin/app/src/plugin/mod.rs
+++ b/bin/app/src/plugin/mod.rs
@@ -20,12 +20,16 @@ use sled_overlay::sled;
use std::{array::TryFromSliceError, string::FromUtf8Error, sync::Arc};
pub mod darkirc;
-#[cfg(feature = "enable-plugins")]
-pub use darkirc::DarkIrc;
pub use darkirc::DarkIrcPtr;
pub mod fud;
-pub use fud::{FudPlugin as Fud, FudPluginPtr as FudPtr};
+pub use fud::FudPluginPtr as FudPtr;
+
+#[cfg(feature = "enable-plugins")]
+pub use {
+ darkirc::DarkIrc,
+ fud::FudPlugin
+};
use darkfi::net::Settings as NetSettings;
diff --git a/bin/app/src/video/ivf.rs b/bin/app/src/video/ivf.rs
new file mode 100644
index 000000000..90900b046
--- /dev/null
+++ b/bin/app/src/video/ivf.rs
@@ -0,0 +1,272 @@
+/* This file is part of DarkFi (https://dark.fi)
+ *
+ * Copyright (C) 2020-2025 Dyne.org foundation
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see .
+ */
+
+//! IVF (Indeo Video File) container format demuxer for AV1 video.
+//!
+//! IVF is a simple container format with a 32-byte header followed by
+//! frame headers (12 bytes each) and frame data.
+
+use darkfi_serial::Decodable;
+use std::io::{Cursor, Read};
+use thiserror::Error;
+
+macro_rules! t { ($($arg:tt)*) => { trace!(target: "video::ivf", $($arg)*); } }
+macro_rules! d { ($($arg:tt)*) => { debug!(target: "video::ivf", $($arg)*); } }
+
+/// Errors that can occur during IVF demuxing
+#[derive(Debug, Error)]
+pub enum IvfError {
+ #[error("Invalid IVF signature: expected 'DKIF', got '{0:?}'")]
+ InvalidSignature([u8; 4]),
+
+ #[error("Unsupported codec: expected 'AV01', got '{0:?}'")]
+ UnsupportedCodec([u8; 4]),
+
+ #[error("Unexpected end of file")]
+ UnexpectedEof,
+
+ #[error("Invalid frame size: {0}")]
+ InvalidFrameSize(u32),
+}
+
+impl From for IvfError {
+ fn from(_: std::io::Error) -> Self {
+ IvfError::UnexpectedEof
+ }
+}
+
+pub type IvfResult = Result;
+
+/// IVF file header (32 bytes)
+///
+/// ```
+/// DKIF - signature (4 bytes)
+/// version (u16) - version (2 bytes)
+/// header_len (u16) - header length (2 bytes)
+/// codec_fourcc - codec fourcc (4 bytes), e.g., "AV01" for AV1
+/// width (u16) - width (2 bytes)
+/// height (u16) - height (2 bytes)
+/// timebase_den (u32) - timebase denominator (4 bytes)
+/// timebase_num (u32) - timebase numerator (4 bytes)
+/// num_frames (u32) - number of frames (4 bytes)
+/// unused (u32) - unused (4 bytes)
+/// ```
+#[derive(Debug, Clone)]
+struct IvfHeader {
+ signature: [u8; 4],
+ version: u16,
+ header_len: u16,
+ codec_fourcc: [u8; 4],
+ pub width: u16,
+ pub height: u16,
+ timebase_den: u32,
+ timebase_num: u32,
+ num_frames: u32,
+ unused: u32,
+}
+
+/// IVF demuxer for AV1 video files
+pub struct IvfDemuxer {
+ cur: Cursor>,
+ pub header: IvfHeader,
+ current_frame: u32,
+}
+
+impl IvfDemuxer {
+ /// Create a new IVF demuxer from raw bytes
+ pub fn from_bytes(data: Vec) -> IvfResult {
+ if data.len() < 32 {
+ return Err(IvfError::UnexpectedEof);
+ }
+
+ let mut self_ = Self {
+ cur: Cursor::new(data),
+ header: unsafe { std::mem::zeroed() },
+ current_frame: 0,
+ };
+
+ self_.parse_header()?;
+
+ // Validate signature (bytes 0-3 should be "DKIF")
+ if &self_.header.signature != b"DKIF" {
+ return Err(IvfError::InvalidSignature(self_.header.signature));
+ }
+
+ // Validate codec (bytes 8-11 should be "AV01" for AV1)
+ if &self_.header.codec_fourcc != b"AV01" {
+ return Err(IvfError::UnsupportedCodec(self_.header.codec_fourcc));
+ }
+
+ d!(
+ "IVF header: {}x{} frames={}",
+ self_.header.width,
+ self_.header.height,
+ self_.header.num_frames
+ );
+
+ Ok(self_)
+ }
+
+ /// Parse IVF header from bytes
+ ///
+ /// # IVF Header Structure (32 bytes, little-endian)
+ ///
+ /// | Offset | Size | Field | Value |
+ /// |--------|------|-----------------|----------------------------|
+ /// | 0 | 4 | signature | "DKIF" |
+ /// | 4 | 2 | version | 0 |
+ /// | 6 | 2 | header_len | 32 |
+ /// | 8 | 4 | codec_fourcc | "AV01" for AV1 |
+ /// | 12 | 2 | width | Frame width in pixels |
+ /// | 14 | 2 | height | Frame height in pixels |
+ /// | 16 | 4 | timebase_den | FPS denominator |
+ /// | 20 | 4 | timebase_num | FPS numerator |
+ /// | 24 | 4 | num_frames | Total frames |
+ /// | 28 | 4 | unused | Reserved |
+ fn parse_header(&mut self) -> Result<(), std::io::Error> {
+ // Offset 0-3: Signature "DKIF" (raw bytes)
+ let mut signature = [0u8; 4];
+ self.cur.read_exact(&mut signature)?;
+
+ // Offset 4-5: Version (usually 0)
+ let version = u16::decode(&mut self.cur)?;
+ // Offset 6-7: Header length (usually 32)
+ let header_len = u16::decode(&mut self.cur)?;
+
+ // Offset 8-11: Codec FourCC ("AV01" for AV1, "VP80" for VP8) (raw bytes)
+ let mut codec_fourcc = [0u8; 4];
+ self.cur.read_exact(&mut codec_fourcc)?;
+
+ // Offset 12-13: Frame width
+ let width = u16::decode(&mut self.cur)?;
+ // Offset 14-15: Frame height
+ let height = u16::decode(&mut self.cur)?;
+
+ // Offset 16-19: Timebase denominator (FPS numerator)
+ let timebase_den = u32::decode(&mut self.cur)?;
+ // Offset 20-23: Timebase numerator (FPS denominator)
+ let timebase_num = u32::decode(&mut self.cur)?;
+
+ // Offset 24-27: Total number of frames
+ let num_frames = u32::decode(&mut self.cur)?;
+ // Offset 28-31: Unused/reserved
+ let unused = u32::decode(&mut self.cur)?;
+
+ self.header = IvfHeader {
+ signature,
+ version,
+ header_len,
+ codec_fourcc,
+ width,
+ height,
+ timebase_den,
+ timebase_num,
+ num_frames,
+ unused,
+ };
+
+ Ok(())
+ }
+
+ /// Get the next frame's AV1 bitstream data
+ ///
+ /// # IVF Frame Header Structure (12 bytes, little-endian)
+ ///
+ /// | Offset | Size | Field | Description |
+ /// |--------|------|-------------|---------------------------------------|
+ /// | 0 | 4 | frame_size | Size of frame data in bytes |
+ /// | 4 | 8 | timestamp | Presentation timestamp |
+ ///
+ /// The frame data immediately follows the 12-byte header.
+ pub fn next_frame(&mut self) -> Result, std::io::Error> {
+ // Offset 0-3: Frame size in bytes
+ let frame_size = u32::decode(&mut self.cur)?;
+ // Offset 4-11: Timestamp (8 bytes) - not used for linear playback
+ let _timestamp = u64::decode(&mut self.cur)?;
+
+ let mut frame_data = vec![0u8; frame_size as usize];
+ self.cur.read_exact(&mut frame_data)?;
+ // Read the frame
+ self.current_frame += 1;
+ Ok(frame_data)
+ }
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+
+ #[test]
+ fn test_header_parsing() {
+ // Create a minimal valid IVF header
+ let mut header_data = vec![0u8; 32];
+
+ // Signature
+ header_data[0..4].copy_from_slice(b"DKIF");
+
+ // Version
+ header_data[4..6].copy_from_slice(&0u16.to_le_bytes());
+
+ // Header length
+ header_data[6..8].copy_from_slice(&32u16.to_le_bytes());
+
+ // Codec
+ header_data[8..12].copy_from_slice(b"AV01");
+
+ // Dimensions
+ header_data[12..14].copy_from_slice(&1920u16.to_le_bytes());
+ header_data[14..16].copy_from_slice(&1080u16.to_le_bytes());
+
+ // Timebase: 25 FPS = 25/1
+ header_data[16..20].copy_from_slice(&25u32.to_le_bytes()); // denominator
+ header_data[20..24].copy_from_slice(&1u32.to_le_bytes()); // numerator
+
+ // Frame count
+ header_data[24..28].copy_from_slice(&100u32.to_le_bytes());
+
+ let header = IvfDemuxer::parse_header(&header_data).unwrap();
+
+ assert_eq!(&header.signature, b"DKIF");
+ assert_eq!(&header.codec_fourcc, b"AV01");
+ assert_eq!(header.width, 1920);
+ assert_eq!(header.height, 1080);
+ assert_eq!(header.timebase_den, 25);
+ assert_eq!(header.timebase_num, 1);
+ assert_eq!(header.num_frames, 100);
+ }
+
+ #[test]
+ fn test_invalid_signature() {
+ let mut header_data = vec![0u8; 32];
+ header_data[0..4].copy_from_slice(b"BAD!");
+
+ let result = IvfDemuxer::from_bytes(header_data);
+ assert!(matches!(result, Err(IvfError::InvalidSignature(_))));
+ }
+
+ #[test]
+ fn test_unsupported_codec() {
+ let mut header_data = vec![0u8; 32];
+ header_data[0..4].copy_from_slice(b"DKIF");
+ // VP8 instead of AV1
+ header_data[8..12].copy_from_slice(b"VP80");
+
+ let result = IvfDemuxer::from_bytes(header_data);
+ assert!(matches!(result, Err(IvfError::UnsupportedCodec(_))));
+ }
+}
diff --git a/bin/app/src/video/mod.rs b/bin/app/src/video/mod.rs
new file mode 100644
index 000000000..12eea7844
--- /dev/null
+++ b/bin/app/src/video/mod.rs
@@ -0,0 +1,24 @@
+/* This file is part of DarkFi (https://dark.fi)
+ *
+ * Copyright (C) 2020-2025 Dyne.org foundation
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see .
+ */
+
+pub mod ivf;
+pub mod yuv_conv;
+
+pub use ivf::{IvfDemuxer, IvfError, IvfResult};
+pub use yuv_conv::yuv420p_to_rgba;
+
diff --git a/bin/app/src/video/yuv_conv.rs b/bin/app/src/video/yuv_conv.rs
new file mode 100644
index 000000000..be4f1c234
--- /dev/null
+++ b/bin/app/src/video/yuv_conv.rs
@@ -0,0 +1,186 @@
+/* This file is part of DarkFi (https://dark.fi)
+ *
+ * Copyright (C) 2020-2025 Dyne.org foundation
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see .
+ */
+
+//! YUV to RGBA color space conversion
+//!
+//! This module provides functions to convert YUV420P planar format
+//! to RGBA format for GPU rendering.
+
+macro_rules! t { ($($arg:tt)*) => { trace!(target: "video::yuv_conv", $($arg)*); } }
+
+/// Convert YUV420P planar format to RGBA
+///
+/// # Arguments
+/// * `y_plane` - Y (luminance) plane data
+/// * `u_plane` - U (chrominance) plane data
+/// * `v_plane` - V (chrominance) plane data
+/// * `width` - Frame width in pixels
+/// * `height` - Frame height in pixels
+/// * `y_stride` - Y plane stride (bytes per row)
+/// * `u_stride` - U plane stride (bytes per row)
+/// * `v_stride` - V plane stride (bytes per row)
+///
+/// # Returns
+/// A Vec containing RGBA data (width * height * 4 bytes)
+///
+/// # Color Conversion
+/// Uses BT.601 standard for YUV to RGB conversion:
+/// ```text
+/// R = Y + 1.402 * (V - 128)
+/// G = Y - 0.344 * (U - 128) - 0.714 * (V - 128)
+/// B = Y + 1.772 * (U - 128)
+/// ```
+pub fn yuv420p_to_rgba(
+ y_plane: &[u8],
+ u_plane: &[u8],
+ v_plane: &[u8],
+ width: usize,
+ height: usize,
+ y_stride: usize,
+ u_stride: usize,
+ v_stride: usize,
+) -> Vec {
+ //t!("yuv420p_to_rgba() {}x{} strides: y={} u={} v={}", width, height, y_stride, u_stride, v_stride);
+
+ let mut rgba = vec![0u8; width * height * 4];
+
+ for y in 0..height {
+ for x in 0..width {
+ let y_idx = y * y_stride + x;
+ let u_idx = (y / 2) * u_stride + (x / 2);
+ let v_idx = (y / 2) * v_stride + (x / 2);
+
+ let y_val = y_plane[y_idx] as i32;
+ let u_val = u_plane[u_idx] as i32 - 128;
+ let v_val = v_plane[v_idx] as i32 - 128;
+
+ // BT.601 YUV to RGB conversion
+ let r = clamp((y_val as f32) + 1.402 * (v_val as f32));
+ let g = clamp((y_val as f32) - 0.344136 * (u_val as f32) - 0.714136 * (v_val as f32));
+ let b = clamp((y_val as f32) + 1.772 * (u_val as f32));
+
+ let out_idx = (y * width + x) * 4;
+ rgba[out_idx] = r;
+ rgba[out_idx + 1] = g;
+ rgba[out_idx + 2] = b;
+ // Alpha
+ rgba[out_idx + 3] = 255;
+ }
+ }
+
+ rgba
+}
+
+/// Clamp a floating point value to 0-255 range and convert to u8
+#[inline]
+fn clamp(value: f32) -> u8 {
+ value.round().clamp(0.0, 255.0) as u8
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+
+ #[test]
+ fn test_yuv420p_to_rgba_basic() {
+ // Create a small test frame (4x4)
+ let width = 4;
+ let height = 4;
+
+ // Y plane - full resolution
+ let y_plane: Vec = (0..16).map(|i| (i * 16) as u8).collect();
+
+ // U and V planes - half resolution (2x2)
+ let u_plane: Vec = vec![128, 128, 128, 128];
+ let v_plane: Vec = vec![128, 128, 128, 128];
+
+ let y_stride = width;
+ let u_stride = width / 2;
+ let v_stride = width / 2;
+
+ let rgba = yuv420p_to_rgba(
+ &y_plane,
+ &u_plane,
+ &v_plane,
+ width,
+ height,
+ y_stride,
+ u_stride,
+ v_stride,
+ );
+
+ // Check output size
+ assert_eq!(rgba.len(), width * height * 4);
+
+ // With U=V=128 (neutral chroma), RGB should equal Y
+ for i in 0..16 {
+ let expected_y = (i * 16) as u8;
+ // R
+ assert_eq!(rgba[i * 4], expected_y);
+ // G
+ assert_eq!(rgba[i * 4 + 1], expected_y);
+ // B
+ assert_eq!(rgba[i * 4 + 2], expected_y);
+ // A
+ assert_eq!(rgba[i * 4 + 3], 255);
+ }
+ }
+
+ #[test]
+ fn test_clamp() {
+ assert_eq!(clamp(-10.0), 0);
+ assert_eq!(clamp(0.0), 0);
+ assert_eq!(clamp(127.5), 128);
+ assert_eq!(clamp(255.0), 255);
+ assert_eq!(clamp(300.0), 255);
+ }
+
+ #[test]
+ fn test_yuv_to_rgb_conversion() {
+ // Test specific color conversions
+ // Black: Y=0, U=128, V=128
+ let black = yuv_to_rgb(0, 128, 128);
+ assert_eq!(black, [0, 0, 0]);
+
+ // White: Y=255, U=128, V=128
+ let white = yuv_to_rgb(255, 128, 128);
+ assert_eq!(white, [255, 255, 255]);
+
+ // Red: Y=76, U=85, V=255 (approximate pure red in BT.601)
+ let red = yuv_to_rgb(76, 85, 255);
+ // R should be high
+ assert!(red[0] > 200);
+ // G should be low
+ assert!(red[1] < 50);
+ // B should be low
+ assert!(red[2] < 50);
+ }
+
+ /// Helper function to convert a single YUV pixel to RGB
+ fn yuv_to_rgb(y: u8, u: u8, v: u8) -> [u8; 3] {
+ let y_val = y as i32;
+ let u_val = u as i32 - 128;
+ let v_val = v as i32 - 128;
+
+ let r = clamp((y_val as f32) + 1.402 * (v_val as f32));
+ let g = clamp((y_val as f32) - 0.344136 * (u_val as f32) - 0.714136 * (v_val as f32));
+ let b = clamp((y_val as f32) + 1.772 * (u_val as f32));
+
+ [r, g, b]
+ }
+}