Optimize / simplify avcodec_get_pix_fmt_name() check.

Originally committed as revision 25689 to svn://svn.ffmpeg.org/ffmpeg/trunk

diff --git a/libavcodec/imgconvert.c b/libavcodec/imgconvert.c
index 3d7e7598a417bf7b6dfe047f8293987c743bc6a1..2574ec8fcc32eb326212acd90017148e7aed3715 100644 (file)
--- a/libavcodec/imgconvert.c
+++ b/libavcodec/imgconvert.c
@@ -419,7 +419,7 @@ void avcodec_get_chroma_sub_sample(enum PixelFormat pix_fmt, int *h_shift, int *
 
 const char *avcodec_get_pix_fmt_name(enum PixelFormat pix_fmt)
 {
-    if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB)
+    if ((unsigned)pix_fmt >= PIX_FMT_NB)
         return NULL;
     else
         return av_pix_fmt_descriptors[pix_fmt].name;