Add workaround for https://issues.chromium.org/issues/529852980

src/conversion.ts

@@ -1329,9 +1329,13 @@ export class Conversion {
 						firstSample.close();
 						await tempOutput.finalize();
 					} catch (error) {
-						Logging._info('Error when probing encoder support. Falling back to rerender path.', error);
+						Logging._warn(
-						needsRerender = true;
+							'An error occurred when probing encoder support. Falling back to rerender path.', error,
+						);
 						void tempOutput.cancel();
+
+						needsRerender = true;
+						encodingConfig.transform.force = true;
 					}
 				} else {
 					await tempOutput.cancel();

src/media-source.ts

@@ -36,6 +36,7 @@ import {
 	setUint24,
 	toUint8Array,
 	UnthrottledTimerHandle,
+	wait,
 } from './misc';
 import { Muxer } from './muxer';
 import { SubtitleParser } from './subtitles';
@@ -878,6 +879,9 @@ class VideoEncoderWrapper {
 				// These are wired in series, therefore they must also be flushed in series
 				await this.encoder.flush();
 				await this.alphaEncoder?.flush();
+
+				// Workaround for https://issues.chromium.org/issues/529852980 to give it time for errors to surface
+				await wait(25);
 			}
 
 			if (this.encoder.state !== 'closed') {