3 files changed, 16 insertions, 17 deletions

diff --git a/modules/skottie/include/Skottie.h b/modules/skottie/include/Skottie.h
index 5114ae4578..a1993832f6 100644
--- a/modules/skottie/include/Skottie.h
+++ b/modules/skottie/include/Skottie.h
@@ -59,7 +59,8 @@ public:
     /**
      * Updates the animation state for |t|.
      *
-     * @param t   normalized [0..1] frame selector, where 0 == inPoint and 1 == outPoint.
+     * @param t   normalized [0..1] frame selector (0 -> first frame, 1 -> final frame)
+     *
      */
     void seek(SkScalar t);
 
@@ -72,9 +73,6 @@ public:
 
     const SkString& version() const { return fVersion;   }
     const SkSize&      size() const { return fSize;      }
-         SkScalar frameRate() const { return fFrameRate; }
-         SkScalar   inPoint() const { return fInPoint;   }
-         SkScalar  outPoint() const { return fOutPoint;  }
 
     void setShowInval(bool show);
 
diff --git a/modules/skottie/src/Skottie.cpp b/modules/skottie/src/Skottie.cpp
index 250aa2e8d3..d2c2cceb5a 100644
--- a/modules/skottie/src/Skottie.cpp
+++ b/modules/skottie/src/Skottie.cpp
@@ -62,7 +62,7 @@ using AssetMap = SkTHashMap<SkString, AssetInfo>;
 struct AttachContext {
     const ResourceProvider& fResources;
     const AssetMap&         fAssets;
-    const float             fFrameRate;
+    const float             fDuration;
     sksg::AnimatorList&     fAnimators;
 };
 
@@ -724,21 +724,21 @@ sk_sp<sksg::RenderNode> AttachNestedAnimation(const char* path, AttachContext* c
 
     class SkottieAnimatorAdapter final : public sksg::Animator {
     public:
-        SkottieAnimatorAdapter(sk_sp<Animation> animation, float frameRate)
+        SkottieAnimatorAdapter(sk_sp<Animation> animation, float time_scale)
             : fAnimation(std::move(animation))
-            , fFrameRate(frameRate) {
+            , fTimeScale(time_scale) {
             SkASSERT(fAnimation);
-            SkASSERT(fFrameRate > 0);
         }
 
     protected:
         void onTick(float t) {
-            fAnimation->seek(t * fFrameRate / fAnimation->frameRate());
+            // TODO: we prolly need more sophisticated timeline mapping for nested animations.
+            fAnimation->seek(t * fTimeScale);
         }
 
     private:
         const sk_sp<Animation> fAnimation;
-        const float            fFrameRate;
+        const float            fTimeScale;
     };
 
     const auto resStream  = ctx->fResources.openStream(path);
@@ -753,8 +753,10 @@ sk_sp<sksg::RenderNode> AttachNestedAnimation(const char* path, AttachContext* c
         return nullptr;
     }
 
-    ctx->fAnimators.push_back(skstd::make_unique<SkottieAnimatorAdapter>(animation,
-                                                                         ctx->fFrameRate));
+
+    ctx->fAnimators.push_back(
+        skstd::make_unique<SkottieAnimatorAdapter>(animation,
+                                                   animation->duration() / ctx->fDuration));
 
     return sk_make_sp<SkottieSGAdapter>(std::move(animation));
 }
@@ -1051,7 +1053,7 @@ sk_sp<sksg::RenderNode> AttachLayer(const json::ValueRef& jlayer, AttachLayerCon
     sksg::AnimatorList layer_animators;
     AttachContext local_ctx = { layerCtx->fCtx->fResources,
                                 layerCtx->fCtx->fAssets,
-                                layerCtx->fCtx->fFrameRate,
+                                layerCtx->fCtx->fDuration,
                                 layer_animators};
 
     // Layer attachers may adjust these.
@@ -1283,7 +1285,7 @@ Animation::Animation(const ResourceProvider& resources,
     }
 
     sksg::AnimatorList animators;
-    AttachContext ctx = { resources, assets, fFrameRate, animators };
+    AttachContext ctx = { resources, assets, this->duration(), animators };
     auto root = AttachComposition(json, &ctx);
 
     stats->fAnimatorCount = animators.size();
diff --git a/tools/viewer/SkottieSlide.cpp b/tools/viewer/SkottieSlide.cpp
index 8eecf43c98..aa085336f9 100644
--- a/tools/viewer/SkottieSlide.cpp
+++ b/tools/viewer/SkottieSlide.cpp
@@ -65,11 +65,10 @@ void SkottieSlide::load(SkScalar w, SkScalar h) {
 
     if (fAnimation) {
         fAnimation->setShowInval(fShowAnimationInval);
-        SkDebugf("loaded Bodymovin animation v: %s, size: [%f %f], fr: %f\n",
+        SkDebugf("loaded Bodymovin animation v: %s, size: [%f %f]\n",
                  fAnimation->version().c_str(),
                  fAnimation->size().width(),
-                 fAnimation->size().height(),
-                 fAnimation->frameRate());
+                 fAnimation->size().height());
     } else {
         SkDebugf("failed to load Bodymovin animation: %s\n", fPath.c_str());
     }