Add audio drains & various fixes and adjustments

dev/demux.html

@@ -13,6 +13,62 @@
 			source
 		});
 
+		const videoTrack = await input.getPrimaryVideoTrack();
+		const audioTrack = await input.getPrimaryAudioTrack();;
+		console.log(videoTrack.computeDuration());
+		console.log(await audioTrack.computeDuration());
+
+		/*
+		const audioTrack = await input.getPrimaryAudioTrack();
+		const drain = new Metamuxer.AudioBufferDrain(audioTrack);
+
+		const context = new AudioContext();
+		const startTime = context.currentTime;
+
+		for await (const { buffer, timestamp } of drain.buffers()) {
+			const node = context.createBufferSource();
+			node.buffer = buffer;
+			node.connect(context.destination);
+			const start = startTime + timestamp
+			node.start(start);
+
+			if (start > context.currentTime + 5) {
+				await new Promise(resolve => {
+					const id = setInterval(() => {
+						if (start < context.currentTime + 5) {
+							clearInterval(id);
+							resolve();
+						}
+					}, 100);
+				});
+			}
+		}
+		*/
+
+		/*
+		const drain = new Metamuxer.AudioDataDrain(audioTrack);
+
+		console.time()
+		for await (const data of drain.data()) {
+			data.close();
+		}
+		console.timeEnd()
+		*/
+
+
+		/*
+		const drain = new Metamuxer.EncodedAudioChunkDrain(audioTrack);
+
+		for await (const chunk of drain.chunks()) {
+			console.log(chunk);
+
+			if (chunk.timestamp > 1e6) {
+				break;
+			}
+		}
+		*/
+
+		/*
 		const videoTrack = await input.getPrimaryVideoTrack();
 		const drain = new Metamuxer.VideoFrameDrain(videoTrack);
 		const width = await videoTrack.getWidth();
@@ -30,6 +86,7 @@
 			context.drawImage(frame, 0, 0, width, height);
 			frame.close();
 		}
+		*/
 
 		/*
 		const drain = new Metamuxer.EncodedVideoChunkDrain(videoTrack);