Add WebMInputFormat, add OutputFormat.getFileExtension()

src/output-format.ts

@@ -12,6 +12,7 @@ export abstract class OutputFormat {
 
 	/** @internal */
 	abstract _getName(): string;
+	abstract getFileExtension(): string;
 	abstract getSupportedCodecs(): MediaCodec[];
 
 	getSupportedVideoCodecs() {
@@ -69,6 +70,10 @@ export class Mp4OutputFormat extends IsobmffOutputFormat {
 		return 'MP4';
 	}
 
+	getFileExtension() {
+		return '.mp4';
+	}
+
 	getSupportedCodecs() {
 		return Mp4OutputFormat.getSupportedCodecs();
 	}
@@ -98,6 +103,10 @@ export class MovOutputFormat extends IsobmffOutputFormat {
 		return 'MOV';
 	}
 
+	getFileExtension() {
+		return '.mov';
+	}
+
 	getSupportedCodecs() {
 		return MovOutputFormat.getSupportedCodecs();
 	}
@@ -152,6 +161,10 @@ export class MkvOutputFormat extends OutputFormat {
 		return 'Matroska';
 	}
 
+	getFileExtension() {
+		return '.mkv';
+	}
+
 	getSupportedCodecs() {
 		return MkvOutputFormat.getSupportedCodecs();
 	}
@@ -181,6 +194,10 @@ export class WebMOutputFormat extends MkvOutputFormat {
 		return 'WebM';
 	}
 
+	override getFileExtension() {
+		return '.webm';
+	}
+
 	static override getSupportedCodecs(): MediaCodec[] {
 		return [
 			'vp8', 'vp9', 'av1',
@@ -211,6 +228,10 @@ export class WaveOutputFormat extends OutputFormat {
 		return 'WAVE';
 	}
 
+	getFileExtension() {
+		return '.wav';
+	}
+
 	getSupportedCodecs() {
 		return WaveOutputFormat.getSupportedCodecs();
 	}