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authorHoward Chu <hyc@highlandsun.com>2010-06-04 01:15:07 +0000
committerHoward Chu <hyc@highlandsun.com>2010-06-04 01:15:07 +0000
commit31878fcf430cf0f0eb39741c65ccee02b22ef785 (patch)
tree830680052fb2f4cd3b277049a34d5836b9788c67 /libavutil/base64.h
parent27b0d365e8a8e605c84d4c33a74326fb0a8be334 (diff)
downloadffmpeg-31878fcf430cf0f0eb39741c65ccee02b22ef785.tar.gz
Add AV_BASE64_SIZE() macro
Originally committed as revision 23461 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavutil/base64.h')
-rw-r--r--libavutil/base64.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/libavutil/base64.h b/libavutil/base64.h
index 103860eff0..477128afab 100644
--- a/libavutil/base64.h
+++ b/libavutil/base64.h
@@ -46,4 +46,9 @@ int av_base64_decode(uint8_t *out, const char *in, int out_size);
*/
char *av_base64_encode(char *out, int out_size, const uint8_t *in, int in_size);
+/**
+ * Calculate the output size needed to base64-encode x bytes.
+ */
+#define AV_BASE64_SIZE(x) (((x)+2) / 3 * 4 + 1)
+
#endif /* AVUTIL_BASE64_H */