Add support for reading/writing non-square pixel video frames (fixes #309)

dev/convert.html

@@ -26,7 +26,7 @@
 			chunked: true,
 			chunkSize: 2**20
 		});
-		const outputFormat = new Mediabunny.MpegTsOutputFormat({});
+		const outputFormat = new Mediabunny.Mp4OutputFormat({});
 
 		const button = document.createElement('button');
 		button.textContent = 'Cancel';
@@ -104,8 +104,9 @@
 			},
 			*/
 			video: () => ({
-				forceTranscode: true,
-				width: 1280,
+				//forceTranscode: true,
+				//forceTranscode: true,
+				//width: 1280,
 				//forceTranscode: true,
 				//allowRotationMetadata: false,
 				//width: 720,

dev/demux.html

@@ -17,18 +17,11 @@
 			source: new Mediabunny.BlobSource(file),
 		});
 
-		for (let i = 0; i < 1000; i++) {
-			const track = await input.getPrimaryAudioTrack();
-			const sink = new Mediabunny.AudioSampleSink(track);
-	
-			for await (const sample of sink.samples()) {
-				sample.close();
-			}
+		const videoTrack = await input.getPrimaryVideoTrack();
+		const sink = new Mediabunny.VideoSampleSink(videoTrack);
 
-			console.log(i);
-		}
-
-		console.log("Done")
+		const sample = await sink.getSample(await videoTrack.getFirstTimestamp());
+		console.log(sample);
 
 		/*