codec/encoder/comparison: add enum

src/codec/encoder/comparison.rs

@@ -0,0 +1,70 @@
+use libc::c_int;
+use ffi::*;
+
+#[derive(Eq, PartialEq, Clone, Copy, Debug)]
+pub enum Comparison {
+	SAD,
+	SSE,
+	SATD,
+	DCT,
+	PSNR,
+	BIT,
+	RD,
+	ZERO,
+	VSAD,
+	VSSE,
+	NSSE,
+	W53,
+	W97,
+	DCTMAX,
+	DCT264,
+	CHROMA,
+}
+
+impl From<c_int> for Comparison {
+	fn from(value: c_int) -> Comparison {
+		match value {
+			FF_CMP_SAD    => Comparison::SAD,
+			FF_CMP_SSE    => Comparison::SSE,
+			FF_CMP_SATD   => Comparison::SATD,
+			FF_CMP_DCT    => Comparison::DCT,
+			FF_CMP_PSNR   => Comparison::PSNR,
+			FF_CMP_BIT    => Comparison::BIT,
+			FF_CMP_RD     => Comparison::RD,
+			FF_CMP_ZERO   => Comparison::ZERO,
+			FF_CMP_VSAD   => Comparison::VSAD,
+			FF_CMP_VSSE   => Comparison::VSSE,
+			FF_CMP_NSSE   => Comparison::NSSE,
+			FF_CMP_W53    => Comparison::W53,
+			FF_CMP_W97    => Comparison::W97,
+			FF_CMP_DCTMAX => Comparison::DCTMAX,
+			FF_CMP_DCT264 => Comparison::DCT264,
+			FF_CMP_CHROMA => Comparison::CHROMA,
+
+			_ => Comparison::ZERO,
+		}
+	}
+}
+
+impl Into<c_int> for Comparison {
+	fn into(self) -> c_int {
+		match self {
+			Comparison::SAD    => FF_CMP_SAD,
+			Comparison::SSE    => FF_CMP_SSE,
+			Comparison::SATD   => FF_CMP_SATD,
+			Comparison::DCT    => FF_CMP_DCT,
+			Comparison::PSNR   => FF_CMP_PSNR,
+			Comparison::BIT    => FF_CMP_BIT,
+			Comparison::RD     => FF_CMP_RD,
+			Comparison::ZERO   => FF_CMP_ZERO,
+			Comparison::VSAD   => FF_CMP_VSAD,
+			Comparison::VSSE   => FF_CMP_VSSE,
+			Comparison::NSSE   => FF_CMP_NSSE,
+			Comparison::W53    => FF_CMP_W53,
+			Comparison::W97    => FF_CMP_W97,
+			Comparison::DCTMAX => FF_CMP_DCTMAX,
+			Comparison::DCT264 => FF_CMP_DCT264,
+			Comparison::CHROMA => FF_CMP_CHROMA,
+		}
+	}
+}

src/codec/encoder/mod.rs

@@ -13,6 +13,9 @@ pub use self::motion_estimation::MotionEstimation;
 pub mod prediction;
 pub use self::prediction::Prediction;
 
+pub mod comparison;
+pub use self::comparison::Comparison;
+
 use std::ffi::CString;
 use std::ptr;
 use std::ops::Deref;