Ensure upscale targets recompute from presets

DONE.md

@@ -804,6 +804,7 @@ This file tracks completed features, fixes, and milestones.
 - ✅ Defaulted Target Aspect Ratio back to Source unless user explicitly sets it
 - ✅ Synced Target Aspect Ratio between Simple and Advanced menus
 - ✅ Hide manual CRF input when Lossless quality is selected
+- ✅ Upscale now recomputes target dimensions from the preset to ensure 2X/4X apply
 - ✅ Stabilized video seeking and embedded rendering
 - ✅ Improved player window positioning
 - ✅ Fixed clear video functionality

TODO.md

@@ -49,6 +49,7 @@ This file tracks upcoming features, improvements, and known issues.
   - Target aspect default enforced as Source unless user changes it
   - Target aspect sync across simple/advanced menus
   - Hide manual CRF entry when Lossless quality is active
+  - Upscale target dimensions recomputed from preset for 2X/4X reliability
 
 ## Priority Features for dev20+
 

main.go

@@ -4322,6 +4322,9 @@ func (s *appState) executeUpscaleJob(ctx context.Context, job *queue.Job, progre
 	method := cfg["method"].(string)
 	targetWidth := int(cfg["targetWidth"].(float64))
 	targetHeight := int(cfg["targetHeight"].(float64))
+	targetPreset, _ := cfg["targetPreset"].(string)
+	sourceWidth := int(toFloat(cfg["sourceWidth"]))
+	sourceHeight := int(toFloat(cfg["sourceHeight"]))
 	preserveAR := true
 	if v, ok := cfg["preserveAR"].(bool); ok {
 		preserveAR = v
@@ -4335,6 +4338,21 @@ func (s *appState) executeUpscaleJob(ctx context.Context, job *queue.Job, progre
 		progressCallback(0)
 	}
 
+	// Recompute target dimensions from preset to avoid stale values
+	if targetPreset != "" && targetPreset != "Custom" {
+		if sourceWidth <= 0 || sourceHeight <= 0 {
+			if src, err := probeVideo(inputPath); err == nil && src != nil {
+				sourceWidth = src.Width
+				sourceHeight = src.Height
+			}
+		}
+		if w, h, keepAR, err := parseResolutionPreset(targetPreset, sourceWidth, sourceHeight); err == nil {
+			targetWidth = w
+			targetHeight = h
+			preserveAR = keepAR
+		}
+	}
+
 	// Build filter chain
 	var filters []string
 
@@ -4351,6 +4369,7 @@ func (s *appState) executeUpscaleJob(ctx context.Context, job *queue.Job, progre
 
 	// Add scale filter (preserve aspect by default)
 	scaleFilter := buildUpscaleFilter(targetWidth, targetHeight, method, preserveAR)
+	logging.Debug(logging.CatFFMPEG, "upscale: target=%dx%d preserveAR=%v method=%s filter=%s", targetWidth, targetHeight, preserveAR, method, scaleFilter)
 	filters = append(filters, scaleFilter)
 
 	// Add frame rate conversion if requested
@@ -12618,6 +12637,9 @@ func buildUpscaleView(state *appState) fyne.CanvasObject {
 				"method":                 state.upscaleMethod,
 				"targetWidth":            float64(targetWidth),
 				"targetHeight":           float64(targetHeight),
+				"targetPreset":           state.upscaleTargetRes,
+				"sourceWidth":            float64(state.upscaleFile.Width),
+				"sourceHeight":           float64(state.upscaleFile.Height),
 				"preserveAR":             preserveAspect,
 				"useAI":                  state.upscaleAIEnabled && state.upscaleAIAvailable,
 				"aiModel":                state.upscaleAIModel,