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Add frame rate-based sampling for MediaStreamVideoTrackSource, reducing the probability of files with wildly irregular FPS; add unthrottled timer primitives

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Vanilagy
2026-03-05 19:57:32 +01:00
parent 66185fed15
commit f79834c3c1
4 changed files with 293 additions and 28 deletions
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dev/live.html
+6 -4
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@@ -17,9 +17,9 @@
const button = document.querySelector('button');
button.addEventListener('click', async () => {
const stream = await navigator.mediaDevices.getUserMedia({ video: true, audio: true });
const stream = await navigator.mediaDevices.getDisplayMedia({ video: true, audio: false });
const videoTrack = stream.getVideoTracks()[0];
const audioTrack = stream.getAudioTracks()[0];
const audioTrack = null;//stream.getAudioTracks()[0];
const output = new Mediabunny.Output({
target: new Mediabunny.BufferTarget(),
@@ -30,7 +30,8 @@
if (videoTrack) {
videoSource = new Mediabunny.MediaStreamVideoTrackSource(videoTrack, {
codec: 'avc',
bitrate: Mediabunny.QUALITY_MEDIUM
bitrate: Mediabunny.QUALITY_MEDIUM,
sizeChangeBehavior: 'passThrough',
});
videoSource.errorPromise.catch((d) => console.log("Hello?????", d));
@@ -45,12 +46,13 @@
audioSource.errorPromise.catch((d) => console.log("Hello!!???", d));
output.addAudioTrack(audioSource);
//output.addAudioTrack(audioSource);
}
await output.start();
setTimeout(() => {
return;
videoSource?.pause();
audioSource?.pause();