Make buffer size check consistent and avoid a possible overflow.

7f2228db · Reimar Döffinger · c940c31c · 7f2228db
Commit 7f2228db authored Jun 15, 2011 by Reimar Döffinger
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rtpenc_h264.c libavformat/rtpenc_h264.c +1 -1

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--- a/libavformat/rtpenc_h264.c
+++ b/libavformat/rtpenc_h264.c
@@ -40,7 +40,7 @@ static const uint8_t *avc_mp4_find_startcode(const uint8_t *start, const uint8_t
        res = (res << 8) | *start++;
    }

-    if (res + start > end) {
+    if (end - start < res) {
        return NULL;
    }