avcodec/fitsdec: properly initialize header->data_max

diff --git a/libavcodec/fitsdec.c b/libavcodec/fitsdec.c
index 32a79cdd0d744c1e20d91d50c26a2239abf93cda..802aa5b509b648e58c34b66bcef794f4ae754b78 100644 (file)
--- a/libavcodec/fitsdec.c
+++ b/libavcodec/fitsdec.c
@@ -63,7 +63,7 @@ static int fill_data_min_max(const uint8_t *ptr8, FITSHeader *header, const uint
     int i, j;
 
     header->data_min = DBL_MAX;
-    header->data_max = DBL_MIN;
+    header->data_max = -DBL_MAX;
     switch (header->bitpix) {
 #define CASE_N(a, t, rd) \
     case a: \