Print ffmpeg log while waiting for autoenc to finish

Code/AudioVideo/AvProcess.cs

@@ -51,16 +51,14 @@ namespace Flowframes
             if (outLine == null || outLine.Data == null)
                 return;
             string line = outLine.Data;
-            lastOutputFfmpeg = lastOutputFfmpeg + line + "\n";
+            lastOutputFfmpeg = lastOutputFfmpeg + "\n" + line;
             bool hidden = currentLogMode == LogMode.Hidden;
             bool replaceLastLine = currentLogMode == LogMode.OnlyLastLine;
             string trimmedLine = line.Remove("q=-0.0").Remove("size=N/A").Remove("bitrate=N/A").TrimWhitespaces();
             Logger.Log(trimmedLine, hidden, replaceLastLine, "ffmpeg");
 
             if(line.Contains("Could not open file"))
-            {
+                Interpolate.Cancel($"FFmpeg Error: {line}");
-                Interpolate.Cancel("Failed to write frames - Make sure the folder is not restricted!");
-            }
         }
 
         static void FfmpegOutputHandlerSilent (object sendingProcess, DataReceivedEventArgs outLine)

Code/AudioVideo/FFmpegCommands.cs

@@ -114,7 +114,7 @@ namespace Flowframes
 
         public static async Task ConcatVideos(string concatFile, string outPath, int looptimes = -1)
         {
-            Logger.Log($"Merging videos...");
+            Logger.Log($"Merging videos...", false, Logger.GetLastLine().Contains("frame"));
             string loopStr = (looptimes > 0) ? $"-stream_loop {looptimes}" : "";
             string vfrFilename = Path.GetFileName(concatFile);
             string args = $" {loopStr} -vsync 1 -f concat -i {vfrFilename} -c copy -pix_fmt yuv420p -movflags +faststart {outPath.Wrap()}";

Code/Form1.cs

@@ -235,6 +235,7 @@ namespace Flowframes
         public void SetWorking(bool state, bool allowCancel = true)
         {
             Logger.Log($"SetWorking({state})", true);
+            SetProgress(-1);
             Control[] controlsToDisable = new Control[] { runBtn, runStepBtn, stepSelector, settingsBtn, installerBtn };
             Control[] controlsToHide = new Control[] { runBtn, runStepBtn, stepSelector };
             progressCircle.Visible = state;

Code/IO/Config.cs

@@ -124,7 +124,7 @@ namespace Flowframes.IO
             // Video Export
             if (key == "h264Crf")       return WriteDefault(key, "20");
             if (key == "h265Crf")       return WriteDefault(key, "24");
-            if (key == "vp9Crf")        return WriteDefault(key, "28");
+            if (key == "vp9Crf")        return WriteDefault(key, "32");
             if (key == "proResProfile") return WriteDefault(key, "2");
             if (key == "aviCodec")      return WriteDefault(key, "ffv1");
             if (key == "aviColors")     return WriteDefault(key, "yuv420p");

Code/IO/Logger.cs

@@ -18,7 +18,7 @@ namespace Flowframes
 
         public static void Log(string s, bool hidden = false, bool replaceLastLine = false, string filename = "")
         {
-            if (s == null)
+            if (string.IsNullOrWhiteSpace(s))
                 return;
 
             Console.WriteLine(s);
@@ -97,5 +97,10 @@ namespace Flowframes
             string[] lines = textbox.Text.SplitIntoLines();
             return lines.Last();
         }
+
+        public static void RemoveLastLine ()
+        {
+            textbox.Text = textbox.Text.Remove(textbox.Text.LastIndexOf(Environment.NewLine));
+        }
     }
 }

Code/Main/FrameTiming.cs

@@ -201,7 +201,6 @@ namespace Flowframes.Main
 
                 bool discardThisFrame = (sceneDetection && (i + 2) < frameFiles.Length && sceneFrames.Contains(Path.GetFileNameWithoutExtension(frameFiles[i + 1].Name)));     // i+2 is in scene detection folder, means i+1 is ugly interp frame
 
-                // TODO: Check if this is needed
                 // If loop is enabled, account for the extra frame added to the end for loop continuity
                 if (loopEnabled && i == (frameFiles.Length - 2))
                     interpFramesAmount = interpFramesAmount * 2;

Code/Main/InterpolateUtils.cs

@@ -49,6 +49,8 @@ namespace Flowframes.Main
                     string[] frames = IOUtils.GetFilesSorted(outdir, $"*.{GetOutExt()}");
                     if (frames.Length > 1)
                         UpdateInterpProgress(frames.Length, targetFrames, frames[frames.Length - 1]);
+                    if (frames.Length >= targetFrames)
+                        break;
                     await Task.Delay(GetProgressWaitTime(frames.Length));
                 }
                 else
@@ -56,7 +58,6 @@ namespace Flowframes.Main
                     await Task.Delay(200);
                 }
             }
-            Program.mainForm.SetProgress(-1);
         }
 
         public static void UpdateInterpProgress(int frames, int target, string latestFramePath = "")

Code/OS/AiProcess.cs

@@ -40,7 +40,7 @@ namespace Flowframes
             hasShownError = false;
         }
 
-        static void AiFinished (string aiName)
+        static async Task AiFinished (string aiName)
         {
             Program.mainForm.SetProgress(100);
             InterpolateUtils.UpdateInterpProgress(IOUtils.GetAmountOfFiles(Interpolate.current.interpFolder, false, "*.png"), InterpolateUtils.targetFrames);
@@ -49,6 +49,12 @@ namespace Flowframes
                 logStr += " - Waiting for encoding to finish...";
             Logger.Log(logStr);
             processTime.Stop();
+            while (AvProcess.lastProcess != null && !AvProcess.lastProcess.HasExited)
+            {
+                string lastLine = AvProcess.lastOutputFfmpeg.SplitIntoLines().Last();
+                Logger.Log(lastLine.Trim(), false, Logger.GetLastLine().Contains("frame"));
+                await Task.Delay(1000);
+            }
         }
 
         public static async Task RunDainNcnn(string framesPath, string outPath, int targetFrames, int tilesize)