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fix(video): normalize camera frames before encoding
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This commit is contained in:
Siavash Sameni
2026-05-25 20:49:32 +04:00
parent ca164ada5c
commit 8d6b168f1b
1 changed files with 25 additions and 5 deletions
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30
desktop/src/main.ts
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@@ -492,9 +492,27 @@ vdSpkBtn.addEventListener("click", async () => {
// ── Camera (Blocker 4 + 5) ────────────────────────────────────────
const camCaptureCanvas = document.createElement("canvas");
const camCaptureCtx = camCaptureCanvas.getContext("2d")!;
const CAMERA_SEND_WIDTH = 1280;
const CAMERA_SEND_HEIGHT = 720;
let cameraCaptureFrameNo = 0;
let cameraPushFailures = 0;
function drawCameraFrameForSend() {
const vw = vdLocalVideo.videoWidth || camCaptureCanvas.width;
const vh = vdLocalVideo.videoHeight || camCaptureCanvas.height;
if (!vw || !vh) return;
const scale = Math.max(CAMERA_SEND_WIDTH / vw, CAMERA_SEND_HEIGHT / vh);
const dw = vw * scale;
const dh = vh * scale;
const dx = (CAMERA_SEND_WIDTH - dw) / 2;
const dy = (CAMERA_SEND_HEIGHT - dh) / 2;
camCaptureCtx.fillStyle = "#000";
camCaptureCtx.fillRect(0, 0, CAMERA_SEND_WIDTH, CAMERA_SEND_HEIGHT);
camCaptureCtx.drawImage(vdLocalVideo, dx, dy, dw, dh);
}
async function startCamera() {
if (cameraActive) return;
const constraints = {
@@ -509,11 +527,13 @@ async function startCamera() {
const track = cameraStream.getVideoTracks()[0];
const settings = track.getSettings();
camCaptureCanvas.width = settings.width ?? 640;
camCaptureCanvas.height = settings.height ?? 360;
camCaptureCanvas.width = CAMERA_SEND_WIDTH;
camCaptureCanvas.height = CAMERA_SEND_HEIGHT;
debugLog("camera:get_user_media_ok", {
width: camCaptureCanvas.width,
height: camCaptureCanvas.height,
width: settings.width ?? null,
height: settings.height ?? null,
send_width: camCaptureCanvas.width,
send_height: camCaptureCanvas.height,
frameRate: settings.frameRate ?? null,
deviceId: settings.deviceId ? "present" : null,
facingMode: settings.facingMode ?? null,
@@ -530,7 +550,7 @@ async function startCamera() {
if (!cameraActive) return;
cameraCaptureFrameNo++;
try {
camCaptureCtx.drawImage(vdLocalVideo, 0, 0, camCaptureCanvas.width, camCaptureCanvas.height);
drawCameraFrameForSend();
const dataUrl = camCaptureCanvas.toDataURL("image/jpeg", 0.75);
const b64 = dataUrl.slice(dataUrl.indexOf(",") + 1);
if (cameraCaptureFrameNo === 1 || cameraCaptureFrameNo % 150 === 0) {