From c0043c1a8413c7d523bf68399508ad5b964e8f30 Mon Sep 17 00:00:00 2001
From: "Sergey \"Shnatsel\" Davidoff" <shnatsel@gmail.com>
Date: Sat, 27 Jun 2026 12:47:51 +0100
Subject: [PATCH] Use zrip-decode crate instead of ruzstd

---
 Cargo.toml           | 6 +++---
 src/decoder/image.rs | 5 +----
 2 files changed, 4 insertions(+), 7 deletions(-)

diff --git a/Cargo.toml b/Cargo.toml
index 2896ebb..a8537be 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -25,7 +25,7 @@ fax34 = { package = "fax", version = "0.2.6", optional = true }
 flate2 = { version = "1.0.20", optional = true }
 weezl = { version = "0.1.10", optional = true }
 zstd = { version = "0.13", optional = true }
-ruzstd = { version = "0.8.2", optional = true }
+zrip-decode = { version = "0.7.0", features = ["paranoid"], optional = true }
 zune-jpeg = { version = "0.5.1", optional = true }
 image-webp = {version = "0.2.4", optional = true }
 
@@ -46,9 +46,9 @@ jpeg = ["dep:zune-jpeg"]
 lzw = ["dep:weezl"]
 webp = ["dep:image-webp"]
 zstd = ["dep:zstd"]
-# Fully safe Rust but much slower Zstd decoding.
+# Fully safe Rust but somewhat slower Zstd decoding.
 # When both zstd and zstd-safe-rust are enabled, zstd takes precedence.
-zstd-safe-rust = ["dep:ruzstd"]
+zstd-safe-rust = ["dep:zrip-decode"]
 
 [[bench]]
 name = "lzw"
diff --git a/src/decoder/image.rs b/src/decoder/image.rs
index 6d0dc24..3a107b7 100644
--- a/src/decoder/image.rs
+++ b/src/decoder/image.rs
@@ -660,10 +660,7 @@ impl Image {
             #[cfg(feature = "zstd")]
             CompressionMethod::ZSTD => Box::new(zstd::Decoder::new(reader)?),
             #[cfg(all(not(feature = "zstd"), feature = "zstd-safe-rust"))]
-            CompressionMethod::ZSTD => Box::new(
-                ruzstd::decoding::StreamingDecoder::new(reader)
-                    .map_err(|e| std::io::Error::other(e))?,
-            ),
+            CompressionMethod::ZSTD => Box::new(zrip_decode::streaming::FrameDecoder::new(reader)),
             CompressionMethod::PackBits => Box::new(PackBitsReader::new(reader, compressed_length)),
             #[cfg(feature = "deflate")]
             CompressionMethod::Deflate | CompressionMethod::OldDeflate => {