packages: add AVX/AVX2 support to ffmpeg/opencv

Signed-off-by: Steven Noonan <steven@uplinklabs.net>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/ffmpeg/ffmpeg.mk

@@ -301,6 +301,18 @@ else
 FFMPEG_CONF_OPTS += --disable-sse42
 endif
 
+ifeq ($(BR2_X86_CPU_HAS_AVX),y)
+FFMPEG_CONF_OPTS += --enable-avx
+else
+FFMPEG_CONF_OPTS += --disable-avx
+endif
+
+ifeq ($(BR2_X86_CPU_HAS_AVX2),y)
+FFMPEG_CONF_OPTS += --enable-avx2
+else
+FFMPEG_CONF_OPTS += --disable-avx2
+endif
+
 # Explicitly disable everything that doesn't match for ARM
 # FFMPEG "autodetects" by compiling an extended instruction via AS
 # This works on compilers that aren't built for generic by default

package/opencv/opencv.mk

@@ -77,6 +77,8 @@ OPENCV_CONF_OPTS += \
 	-DENABLE_SSE3=$(if $(BR2_X86_CPU_HAS_SSE3),ON,OFF)   \
 	-DENABLE_SSE41=$(if $(BR2_X86_CPU_HAS_SSE4),ON,OFF)  \
 	-DENABLE_SSE42=$(if $(BR2_X86_CPU_HAS_SSE42),ON,OFF) \
+	-DENABLE_AVX=$(if $(BR2_X86_CPU_HAS_AVX),ON,OFF) \
+	-DENABLE_AVX2=$(if $(BR2_X86_CPU_HAS_AVX2),ON,OFF) \
 	-DENABLE_SSSE3=$(if $(BR2_X86_CPU_HAS_SSSE3),ON,OFF)
 
 # Cuda stuff