Guard against negative sizes from codec

Protect against a negative codec buffer sizes. Avoids casting a negative
size to a very large size.

Bug: 193904641
Test: soundpool invocations during boot
Change-Id: If0e71537ca6301344df1f2f1493ed6b81bbed1f3

parent 9e227736

media/jni/soundpool/Sound.cpp

+1 −1

Original line number	Diff line number	Diff line
		@@ -140,7 +140,7 @@ static status_t decode(int fd, int64_t offset, int64_t length,
		__func__);
		break;
		}
		const size_t dataSize = std::min((size_t)info.size, available);
		const size_t dataSize = std::min(available, (size_t)std::max(info.size, 0));
		memcpy(writePos, buf + info.offset, dataSize);
		writePos += dataSize;
		written += dataSize;