Changed unary operator from ! to ~

Since the intent is
to reset the appropriate bit in ref_frame_flags not to
test a logic condition. Prior result would always have
been ref_frame_flags being set to 0.
(Issue reported by dgohman, issue 47)

Change-Id: I2c12502ed74c73cf38e98c9680e0249c29e16433

diff --git a/vp8/encoder/onyx_if.c b/vp8/encoder/onyx_if.c
index 3680b46..14adb4e 100644 (file)
--- a/vp8/encoder/onyx_if.c
+++ b/vp8/encoder/onyx_if.c
@@ -4588,13 +4588,13 @@ static void encode_frame_to_data_rate(VP8_COMP *cpi, unsigned long *size, unsign
     cpi->ref_frame_flags = VP8_ALT_FLAG | VP8_GOLD_FLAG | VP8_LAST_FLAG;
 
     if (cpi->gold_is_last)
-        cpi->ref_frame_flags &= !VP8_GOLD_FLAG;
+        cpi->ref_frame_flags &= ~VP8_GOLD_FLAG;
 
     if (cpi->alt_is_last)
-        cpi->ref_frame_flags &= !VP8_ALT_FLAG;
+        cpi->ref_frame_flags &= ~VP8_ALT_FLAG;
 
     if (cpi->gold_is_alt)
-        cpi->ref_frame_flags &= !VP8_ALT_FLAG;
+        cpi->ref_frame_flags &= ~VP8_ALT_FLAG;
 
 
     if (cpi->oxcf.error_resilient_mode)