diff --git a/contrib/src/ffmpeg/rules.mak b/contrib/src/ffmpeg/rules.mak
index 3b6ec3306ccb17ed853be844d10e3abc60fa8dd8..d334e30d7e40fe814b4704d5ea8c8cc2002e6be4 100644
--- a/contrib/src/ffmpeg/rules.mak
+++ b/contrib/src/ffmpeg/rules.mak
@@ -139,32 +139,16 @@ FFMPEGCONF += \
 	--enable-decoder=ac3 \
 	--enable-decoder=eac3 \
 	--enable-decoder=mp3 \
-	--enable-decoder=pcm_u24be \
 	--enable-decoder=pcm_u24le \
-	--enable-decoder=pcm_u32be \
 	--enable-decoder=pcm_u32le \
 	--enable-decoder=pcm_u8 \
 	--enable-decoder=pcm_f16le \
-	--enable-decoder=pcm_f24le \
-	--enable-decoder=pcm_f32be \
 	--enable-decoder=pcm_f32le \
-	--enable-decoder=pcm_f64be \
 	--enable-decoder=pcm_f64le \
-	--enable-decoder=pcm_s16be \
-	--enable-decoder=pcm_s16be_planar \
 	--enable-decoder=pcm_s16le \
-	--enable-decoder=pcm_s16le_planar \
-	--enable-decoder=pcm_s24be \
 	--enable-decoder=pcm_s24le \
-	--enable-decoder=pcm_s24le_planar \
-	--enable-decoder=pcm_s32be \
 	--enable-decoder=pcm_s32le \
-	--enable-decoder=pcm_s32le_planar \
-	--enable-decoder=pcm_s64be \
 	--enable-decoder=pcm_s64le \
-	--enable-decoder=pcm_s8 \
-	--enable-decoder=pcm_s8_planar \
-	--enable-decoder=pcm_u16be \
 	--enable-decoder=pcm_u16le \
 	--enable-encoder=pcm_u8 \
 	--enable-encoder=pcm_f32le \