1 files changed, 105 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webcodecs/temporal-svc-encoding.https.any.js b/testing/web-platform/tests/webcodecs/temporal-svc-encoding.https.any.js
new file mode 100644
index 0000000000..7cf7225e5d
--- /dev/null
+++ b/testing/web-platform/tests/webcodecs/temporal-svc-encoding.https.any.js
@@ -0,0 +1,105 @@
+// META: global=window,dedicatedworker
+// META: script=/webcodecs/video-encoder-utils.js
+// META: variant=?av1
+// META: variant=?vp8
+// META: variant=?vp9
+// META: variant=?h264
+
+var ENCODER_CONFIG = null;
+promise_setup(async () => {
+  const config = {
+    '?av1': {codec: 'av01.0.04M.08'},
+    '?vp8': {codec: 'vp8'},
+    '?vp9': {codec: 'vp09.00.10.08'},
+    '?h264': {codec: 'avc1.42001E', avc: {format: 'annexb'}}
+  }[location.search];
+  config.hardwareAcceleration = 'prefer-software';
+  config.width = 320;
+  config.height = 200;
+  config.bitrate = 1000000;
+  config.bitrateMode = "constant";
+  config.framerate = 30;
+  ENCODER_CONFIG = config;
+});
+
+async function svc_test(t, layers, base_layer_decimator) {
+  let encoder_config = { ...ENCODER_CONFIG };
+  encoder_config.scalabilityMode = "L1T" + layers;
+  const w = encoder_config.width;
+  const h = encoder_config.height;
+  await checkEncoderSupport(t, encoder_config);
+
+  let frames_to_encode = 24;
+  let frames_decoded = 0;
+  let frames_encoded = 0;
+  let chunks = [];
+  let corrupted_frames = [];
+
+  const encoder_init = {
+    output(chunk, metadata) {
+      frames_encoded++;
+
+      // Filter out all frames, but base layer.
+      assert_own_property(metadata, "svc");
+      assert_own_property(metadata.svc, "temporalLayerId");
+      assert_less_than(metadata.svc.temporalLayerId, layers);
+      if (metadata.svc.temporalLayerId == 0)
+        chunks.push(chunk);
+    },
+    error(e) {
+      assert_unreached(e.message);
+    }
+  };
+
+  let encoder = new VideoEncoder(encoder_init);
+  encoder.configure(encoder_config);
+
+  for (let i = 0; i < frames_to_encode; i++) {
+    let frame = createDottedFrame(w, h, i);
+    encoder.encode(frame, { keyFrame: false });
+    frame.close();
+  }
+  await encoder.flush();
+
+  let decoder = new VideoDecoder({
+    output(frame) {
+      frames_decoded++;
+      // Check that we have intended number of dots and no more.
+      // Completely black frame shouldn't pass the test.
+      if(!validateBlackDots(frame, frame.timestamp) ||
+         validateBlackDots(frame, frame.timestamp + 1)) {
+        corrupted_frames.push(frame.timestamp)
+      }
+      frame.close();
+    },
+    error(e) {
+      assert_unreached(e.message);
+    }
+  });
+
+  let decoder_config = {
+    codec: encoder_config.codec,
+    hardwareAcceleration: encoder_config.hardwareAcceleration,
+    codedWidth: w,
+    codedHeight: h,
+  };
+  decoder.configure(decoder_config);
+
+  for (let chunk of chunks) {
+    decoder.decode(chunk);
+  }
+  await decoder.flush();
+
+  encoder.close();
+  decoder.close();
+  assert_equals(frames_encoded, frames_to_encode);
+
+  let base_layer_frames = frames_to_encode / base_layer_decimator;
+  assert_equals(chunks.length, base_layer_frames);
+  assert_equals(frames_decoded, base_layer_frames);
+  assert_equals(corrupted_frames.length, 0,
+    `corrupted_frames: ${corrupted_frames}`);
+}
+
+promise_test(async t => { return svc_test(t, 2, 2) }, "SVC L1T2");
+promise_test(async t => { return svc_test(t, 3, 4) }, "SVC L1T3");