Update src/h264rtpdepacketizer.cpp

Co-authored-by: Paul-Louis Ageneau <paul-louis@ageneau.org>

Author: Sean-Der

src/h264rtpdepacketizer.cpp

@@ -44,7 +44,7 @@ message_vector H264RtpDepacketizer::buildFrame(message_vector::iterator first,
 		auto pktParsed = reinterpret_cast<const rtc::RtpHeader *>(pkt->data());
 		auto headerSize =
 		    rtpHeaderSize + pktParsed->csrcCount() + pktParsed->getExtensionHeaderSize();
-		auto naluType = pkt->at(headerSize) & naluTypeBitmask;
+		auto naluType = std::to_integer<uint8_t>(pkt->at(headerSize)) & naluTypeBitmask;
 
 		if (fua_buffer.size() != 0 || naluType == naluTypeFUA) {
 			if (fua_buffer.size() == 0) {