fix: audio could not play，fps fault-tolerant

Author: yangqingren

SVGAPlayer.xcodeproj/project.pbxproj

@@ -58,6 +58,7 @@
 		90D7CA1C1F7FB114006E74F0 /* rose_1.5.0.svga in Resources */ = {isa = PBXBuildFile; fileRef = 90D7CA1A1F7FB114006E74F0 /* rose_1.5.0.svga */; };
 		90D7CA1E1F7FB34E006E74F0 /* libz.tbd in Frameworks */ = {isa = PBXBuildFile; fileRef = 90D7CA1D1F7FB34E006E74F0 /* libz.tbd */; };
 		90DB59B51F96026E00894727 /* SVGAImageView.m in Sources */ = {isa = PBXBuildFile; fileRef = 90DB59B41F96026E00894727 /* SVGAImageView.m */; };
+		E83A58D9247E0E6A00D9F404 /* audio_biling.svga in Resources */ = {isa = PBXBuildFile; fileRef = E83A58D8247E0E6A00D9F404 /* audio_biling.svga */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -119,6 +120,7 @@
 		90DB59B41F96026E00894727 /* SVGAImageView.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = SVGAImageView.m; sourceTree = "<group>"; };
 		92332F7A897BF4379D765B05 /* libPods-SVGAPlayer React.a */ = {isa = PBXFileReference; explicitFileType = archive.ar; includeInIndex = 0; path = "libPods-SVGAPlayer React.a"; sourceTree = BUILT_PRODUCTS_DIR; };
 		E02B8713B25C0283C736EE03 /* Pods-SVGAPlayer.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-SVGAPlayer.release.xcconfig"; path = "Pods/Target Support Files/Pods-SVGAPlayer/Pods-SVGAPlayer.release.xcconfig"; sourceTree = "<group>"; };
+		E83A58D8247E0E6A00D9F404 /* audio_biling.svga */ = {isa = PBXFileReference; lastKnownFileType = file; path = audio_biling.svga; sourceTree = "<group>"; };
 		FF89C40C3E9839DA5DE71191 /* Pods-SVGAPlayer React.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-SVGAPlayer React.release.xcconfig"; path = "Pods/Target Support Files/Pods-SVGAPlayer React/Pods-SVGAPlayer React.release.xcconfig"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
@@ -249,6 +251,7 @@
 		90D7C9FA1F7E2AA3006E74F0 /* Samples */ = {
 			isa = PBXGroup;
 			children = (
+				E83A58D8247E0E6A00D9F404 /* audio_biling.svga */,
 				718A146C235718E000FED5D3 /* Rocket.svga */,
 				71DAA8A42355B3ED006608A1 /* Goddess.svga */,
 				71A8679022B7785100176CD6 /* matteRect.svga */,
@@ -373,6 +376,7 @@
 				71A8679322B7853600176CD6 /* matteBitmap.svga in Resources */,
 				90D7CA1C1F7FB114006E74F0 /* rose_1.5.0.svga in Resources */,
 				90D7CA1B1F7FB114006E74F0 /* rose_2.0.0.svga in Resources */,
+				E83A58D9247E0E6A00D9F404 /* audio_biling.svga in Resources */,
 				71DAA8A52355B3ED006608A1 /* Goddess.svga in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;

SVGAPlayer/Samples/audio_biling.svga

@@ -15,6 +15,8 @@
 
 @property (nonatomic, readonly) AVAudioPlayer *audioPlayer;
 @property (nonatomic, readonly) SVGAAudioEntity *audioItem;
+@property (nonatomic, assign) BOOL audioPlaying;
+
 
 - (instancetype)initWithAudioItem:(SVGAAudioEntity *)audioItem videoItem:(SVGAVideoEntity *)videoItem;
 

Source/SVGAAudioLayer.h

@@ -31,7 +31,6 @@ @interface SVGAPlayer ()
 @property (nonatomic, assign) NSRange currentRange;
 @property (nonatomic, assign) BOOL forwardAnimating;
 @property (nonatomic, assign) BOOL reversing;
-@property (nonatomic, assign) BOOL audioPlaying;
 
 @end 
 
@@ -79,8 +78,11 @@ - (void)startAnimation {
     }
     [self stopAnimation:NO];
     self.loopCount = 0;
+    if (self.videoItem.FPS == 0) {
+        NSLog(@"videoItem FPS could not be 0！");
+        return;
+    }
     self.displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(next)];
-
     self.displayLink.frameInterval = 60 / self.videoItem.FPS;
     [self.displayLink addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
     self.forwardAnimating = !self.reversing;
@@ -125,13 +127,12 @@ - (void)clear {
 }
 
 - (void)clearAudios {
-    if (!self.audioPlaying) {
-        return;
-    }
     for (SVGAAudioLayer *layer in self.audioLayers) {
-        [layer.audioPlayer stop];
+        if (layer.audioPlaying) {
+            [layer.audioPlayer stop];
+            layer.audioPlaying = NO;
+        }
     }
-    self.audioPlaying = NO;
 }
 
 - (void)stepToFrame:(NSInteger)frame andPlay:(BOOL)andPlay {
@@ -149,6 +150,10 @@ - (void)stepToFrame:(NSInteger)frame andPlay:(BOOL)andPlay {
     [self update];
     if (andPlay) {
         self.forwardAnimating = YES;
+        if (self.videoItem.FPS == 0) {
+            NSLog(@"videoItem FPS could not be 0！");
+            return;
+        }
         self.displayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(next)];
         self.displayLink.frameInterval = 60 / self.videoItem.FPS;
         [self.displayLink addToRunLoop:[NSRunLoop mainRunLoop] forMode:NSRunLoopCommonModes];
@@ -324,14 +329,14 @@ - (void)update {
     [CATransaction setDisableActions:NO];
     if (self.forwardAnimating && self.audioLayers.count > 0) {
         for (SVGAAudioLayer *layer in self.audioLayers) {
-            if (!self.audioPlaying && layer.audioItem.startFrame >= self.currentFrame) {
+            if (!layer.audioPlaying && layer.audioItem.startFrame <= self.currentFrame && self.currentFrame <= layer.audioItem.endFrame) {
                 [layer.audioPlayer setCurrentTime:(NSTimeInterval)(layer.audioItem.startTime / 1000)];
                 [layer.audioPlayer play];
-                self.audioPlaying = YES;
+                layer.audioPlaying = YES;
             }
-            if (self.audioPlaying && layer.audioItem.endFrame <= self.currentFrame) {
+            if (layer.audioPlaying && layer.audioItem.endFrame <= self.currentFrame) {
                 [layer.audioPlayer stop];
-                self.audioPlaying = NO;
+                layer.audioPlaying = NO;
             }
         }
     }