summaryrefslogtreecommitdiff
path: root/libavutil/internal.h
diff options
context:
space:
mode:
authorMichael Niedermayer <michael@niedermayer.cc>2017-02-20 19:34:54 +0100
committerMichael Niedermayer <michael@niedermayer.cc>2017-02-21 00:40:20 +0100
commit4614bf2caf67a89c2d833b3368f325eab54582bc (patch)
tree8a998b9f5418391f7262c117cbf0ec07ae08243d /libavutil/internal.h
parente3c14eaa54c87d4d8771bc75cb24b0b537fbcd19 (diff)
downloadffmpeg-4614bf2caf67a89c2d833b3368f325eab54582bc.tar.gz
Factorize CHECK/SUINT code
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavutil/internal.h')
-rw-r--r--libavutil/internal.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/libavutil/internal.h b/libavutil/internal.h
index 4d1b3e2c18..7780a9a791 100644
--- a/libavutil/internal.h
+++ b/libavutil/internal.h
@@ -262,6 +262,16 @@ void avpriv_request_sample(void *avc,
# define ff_dlog(ctx, ...) do { if (0) av_log(ctx, AV_LOG_DEBUG, __VA_ARGS__); } while (0)
#endif
+// For debuging we use signed operations so overflows can be detected (by ubsan)
+// For production we use unsigned so there are no undefined operations
+#ifdef CHECKED
+#define SUINT int
+#define SUINT32 int32_t
+#else
+#define SUINT unsigned
+#define SUINT32 uint32_t
+#endif
+
/**
* Clip and convert a double value into the long long amin-amax range.
* This function is needed because conversion of floating point to integers when