Use uint64_t for DECODE_UNIT presentationTimeMs

This still holds a millisecond value sourced from RTP timestamp, but since we're changing the API anyway, now is a good time to future-proof this field.

src/Limelight.h

@@ -167,7 +167,7 @@ typedef struct _DECODE_UNIT {
     // Presentation time in milliseconds with the epoch at the first captured frame.
     // This can be used to aid frame pacing or to drop old frames that were queued too
     // long prior to display.
-    unsigned int presentationTimeMs;
+    uint64_t presentationTimeMs;
 
     // Length of the entire buffer chain in bytes
     int fullLength;

src/RtpVideoQueue.h

@@ -7,7 +7,7 @@ typedef struct _RTPV_QUEUE_ENTRY {
     struct _RTPV_QUEUE_ENTRY* prev;
     PRTP_PACKET packet;
     uint64_t receiveTimeUs;
-    uint32_t presentationTimeMs;
+    uint64_t presentationTimeMs;
     int length;
     bool isParity;
 } RTPV_QUEUE_ENTRY, *PRTPV_QUEUE_ENTRY;
@@ -43,7 +43,7 @@ typedef struct _RTP_VIDEO_QUEUE {
     uint8_t multiFecCurrentBlockNumber;
     uint8_t multiFecLastBlockNumber;
 
-    uint32_t lastOosFramePresentationTimestamp;
+    uint64_t lastOosFramePresentationTimestamp;
     bool receivedOosData;
 
     RTP_VIDEO_STATS stats; // the above values are short-lived, this tracks stats for the life of the queue

src/VideoDepacketizer.c

@@ -20,7 +20,7 @@ static bool strictIdrFrameWait;
 static uint64_t syntheticPtsBaseUs;
 static uint16_t frameHostProcessingLatency;
 static uint64_t firstPacketReceiveTimeUs;
-static unsigned int firstPacketPresentationTime;
+static uint64_t firstPacketPresentationTime;
 static bool dropStatePending;
 static bool idrFrameProcessed;
 
@@ -828,10 +828,10 @@ static void processRtpPayload(PNV_VIDEO_PACKET videoPacket, int length,
         }
 
         if (!presentationTimeMs && frameIndex > 0) {
-            firstPacketPresentationTime = (unsigned int)((receiveTimeUs - syntheticPtsBaseUs) / 1000);
+            firstPacketPresentationTime = (receiveTimeUs - syntheticPtsBaseUs) / 1000;
         }
         else {
-            firstPacketPresentationTime = (unsigned int)presentationTimeMs;
+            firstPacketPresentationTime = presentationTimeMs;
         }
     }