Re-add reading the exact FPS or reducing by 0.1%

Author: RocketRobz

arm9/source/main.cpp

@@ -809,10 +809,12 @@ int playRvid(const char* filename) {
 	}
 
 	if (rvidHasSound) {
-		// Ensure video and audio stay in sync
 		soundBufferReadLen = rvidSampleRate;
-		for (int i = 0; i < rvidSampleRate; i += 1000) {
-			soundBufferReadLen++;
+		if (rvidReduceFpsBy01) {
+			// Ensure video and audio stay in sync
+			for (int i = 0; i < rvidSampleRate; i += 1000) {
+				soundBufferReadLen++;
+			}
 		}
 
 		rvidSound = fopen(filename, "rb");
@@ -905,7 +907,9 @@ int playRvid(const char* filename) {
 		IPC_SendSync(1);
 	} else {
 		frameOfRefreshRateLimit = 60;
-		IPC_SendSync(2);
+		if (!rvidReduceFpsBy01) {
+			IPC_SendSync(2);
+		}
 	}
 
 	videoPlaying = true;

arm9/source/rvidHeader.cpp

@@ -8,6 +8,7 @@ rvidHeaderInfo2 rvidHeader2;
 
 int rvidFrames = 0;
 int rvidFps = 0;
+bool rvidReduceFpsBy01 = false;
 int rvidHRes = 0;
 int rvidVRes = 0;
 bool rvidInterlaced = false;
@@ -52,6 +53,12 @@ void readRvidHeader(FILE* rvid) {
 	fread(&rvidHeader2, 1, sizeof(rvidHeader2), rvid);
 	rvidFrames = rvidHeader2.frames;
 	rvidFps = rvidHeader2.fps;
+	if (rvidFps >= 0x80) {
+		rvidFps -= 0x80;
+		rvidReduceFpsBy01 = true;
+	} else {
+		rvidReduceFpsBy01 = false;
+	}
 	rvidVRes = rvidHeader2.vRes;
 	rvidInterlaced = rvidHeader2.interlaced;
 	rvidDualScreen = rvidHeader2.dualScreen;