Use precise version check for FFmpeg/libav

Pointed-out-by: thresh

modules/codec/avcodec/avcodec.c

@@ -310,7 +310,7 @@ static int OpenDecoder( vlc_object_t *p_this )
     p_context->opaque = (void *)p_this;
 
     /* set CPU capabilities */
-#if LIBAVUTIL_VERSION_INT >= AV_VERSION_INT( 51, 42, 0 )
+#if LIBAVUTIL_VERSION_CHECK(51, 25, 0, 42, 100)
     av_set_cpu_flags_mask( INT_MAX & ~GetVlcDspMask() );
 #else
     p_context->dsp_mask = GetVlcDspMask();

modules/codec/avcodec/avcommon.h

@@ -48,7 +48,7 @@ static inline void vlc_init_avformat(void)
 {
     vlc_avcodec_lock();
 
-#if LIBAVUTIL_VERSION_INT >= AV_VERSION_INT( 51, 42, 0 )
+#if LIBAVUTIL_VERSION_CHECK(51, 25, 0, 42, 100)
     av_set_cpu_flags_mask( INT_MAX & ~GetVlcDspMask() );
 #endif
 

modules/codec/avcodec/encoder.c

@@ -311,7 +311,7 @@ int OpenEncoder( vlc_object_t *p_this )
     p_context->opaque = (void *)p_this;
 
     /* set CPU capabilities */
-#if LIBAVUTIL_VERSION_INT >= AV_VERSION_INT( 51, 42, 0 )
+#if LIBAVUTIL_VERSION_CHECK(51, 25, 0, 42, 100)
     av_set_cpu_flags_mask( INT_MAX & ~GetVlcDspMask() );
 #else
     p_context->dsp_mask = GetVlcDspMask();