From 67b683169cd64d1289a60ee983026266d7510440 Mon Sep 17 00:00:00 2001
From: meh <meh@schizofreni.co>
Date: Mon, 3 Aug 2015 18:52:30 +0200
Subject: [PATCH] crate: add image support

---
 Cargo.toml              |  4 ++++
 src/lib.rs              |  1 +
 src/util/frame/video.rs | 21 +++++++++++++++++++++
 3 files changed, 26 insertions(+)

diff --git a/Cargo.toml b/Cargo.toml
index 6011300..d97319b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,6 +26,10 @@ software-scaling    = ["ffmpeg-sys/swscale", "codec"]
 libc     = "0.1"
 bitflags = "0.1"
 
+[dependencies.image]
+version  = "*"
+optional = true
+
 [dependencies.ffmpeg-sys]
 version = "2.7.0"
 
diff --git a/src/lib.rs b/src/lib.rs
index 3d24df1..f39b40b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -3,6 +3,7 @@
 extern crate libc;
 extern crate ffmpeg_sys as ffi;
 #[macro_use] extern crate bitflags;
+#[cfg(feature = "image")] extern crate image;
 
 pub mod util;
 pub use util::error::Error;
diff --git a/src/util/frame/video.rs b/src/util/frame/video.rs
index 871e48d..7d23b87 100644
--- a/src/util/frame/video.rs
+++ b/src/util/frame/video.rs
@@ -293,3 +293,24 @@ impl Clone for Video {
 pub trait Component {
 	fn is_valid(format: format::Pixel) -> bool;
 }
+
+#[cfg(feature = "image")]
+impl Component for ::image::Luma<u8> {
+	fn is_valid(format: format::Pixel) -> bool {
+		format == format::Pixel::GRAY8
+	}
+}
+
+#[cfg(feature = "image")]
+impl Component for ::image::Rgb<u8> {
+	fn is_valid(format: format::Pixel) -> bool {
+		format == format::Pixel::RGB24
+	}
+}
+
+#[cfg(feature = "image")]
+impl Component for ::image::Rgba<u8> {
+	fn is_valid(format: format::Pixel) -> bool {
+		format == format::Pixel::RGBA
+	}
+}