Do not bother with exceptions during exporting when process was cancelled

src/main/java/eu/crushedpixel/replaymod/video/VideoRenderer.java

@@ -39,6 +39,7 @@ public class VideoRenderer implements RenderInfo {
     private final Minecraft mc = Minecraft.getMinecraft();
     private final ReplaySender replaySender;
     private final RenderOptions options;
+    private final VideoWriter videoWriter;
 
     private int fps;
     private boolean mouseWasGrabbed;
@@ -60,7 +61,7 @@ public class VideoRenderer implements RenderInfo {
         this.gui = new GuiVideoRenderer(this);
         this.replaySender = ReplayMod.replaySender;
         this.options = options;
-        this.renderingPipeline = Pipelines.newPipeline(options.getMode(), this, new VideoWriter(options) {
+        this.renderingPipeline = Pipelines.newPipeline(options.getMode(), this, videoWriter = new VideoWriter(options) {
             @Override
             public void consume(RGBFrame frame) {
                 gui.updatePreview(frame);
@@ -418,6 +419,7 @@ public class VideoRenderer implements RenderInfo {
     }
 
     public void cancel() {
+        videoWriter.abort();
         this.cancelled = true;
         renderingPipeline.cancel();
     }

src/main/java/eu/crushedpixel/replaymod/video/VideoWriter.java

@@ -31,6 +31,7 @@ public class VideoWriter implements FrameConsumer<RGBFrame> {
     private final OutputStream outputStream;
     private final WritableByteChannel channel;
     private final String commandArgs;
+    private volatile boolean aborted;
 
     public VideoWriter(final RenderOptions options) throws IOException {
         this.options = options.copy();
@@ -90,6 +91,9 @@ public class VideoWriter implements FrameConsumer<RGBFrame> {
             channel.write(frame.getByteBuffer());
             ByteBufferPool.release(frame.getByteBuffer());
         } catch (Throwable t) {
+            if (aborted) {
+                return;
+            }
             CrashReport report = CrashReport.makeCrashReport(t, "Exporting frame");
             CrashReportCategory exportDetails = report.makeCategory("Export details");
             exportDetails.addCrashSection("Export command", options.getExportCommand());
@@ -106,4 +110,8 @@ public class VideoWriter implements FrameConsumer<RGBFrame> {
         isTrue(width == options.getWidth(), "Width has to be %d but was %d", options.getWidth(), width);
         isTrue(height == options.getHeight(), "Height has to be %d but was %d", options.getHeight(), height);
     }
+
+    public void abort() {
+        aborted = true;
+    }
 }