Make uint32_t multiplication explicitly uint64_t

vrabaud · vrabaud · commit f776da44f483 · 2025-12-01T12:59:27.000+01:00
There cannot be any overflow in practice, this is to quiet some
analyzer.

Change-Id: Ib76fc13aa27b72063ba6032f659987f47bb57117
diff --git a/src/enc/analysis_enc.c b/src/enc/analysis_enc.c
@@ -270,7 +270,7 @@ static int FastMBAnalyze(VP8EncIterator* const it) {
   }
   for (m = 0, m2 = 0, k = 0; k < 16; ++k) {
     m += dc[k];
-    m2 += dc[k] * dc[k];
+    m2 += (uint64_t)dc[k] * dc[k];
   }
   if (kThreshold * m2 < m * m) {
     VP8SetIntra16Mode(it, 0);  // DC16

Original file line number	Diff line number	Diff line change
`@@ -270,7 +270,7 @@ static int FastMBAnalyze(VP8EncIterator* const it) {`
`270`	`270`	`}`
`271`	`271`	`for (m = 0, m2 = 0, k = 0; k < 16; ++k) {`
`272`	`272`	`m += dc[k];`
`273`		`- m2 += dc[k] * dc[k];`
	`273`	`+ m2 += (uint64_t)dc[k] * dc[k];`
`274`	`274`	`}`
`275`	`275`	`if (kThreshold * m2 < m * m) {`
`276`	`276`	`VP8SetIntra16Mode(it, 0); // DC16`