WPT

This page compares scores on the Web Platform Tests across web engines, using the latest master runs from wpt.fyi and Blitz's own test runner.

wpt / webrtc-encoded-transform

Spec: WebRTC Encoded Transform ↗

Runs: Chrome 158.0.8110.0 (wpt@850b36a56, 2026-10-18) | Firefox 160.0a1 (wpt@b58866519, 2026-10-18) | Safari 254 preview (wpt@850b36a56, 2026-10-18) | Ladybird 1.0-e7b21 (wpt@850b36a56, 2026-10-18) | Servo Servo 0.7 (wpt@df642c414, 2026-10-17) | Blitz fb8d6c15e (wpt@cd1d8aa5b, 2026-10-17)

Score history

Percentage of subtests passing over time, one master run per day. Every engine's percentage is relative to the same denominator: the total number of subtests known to any engine in the latest runs (so lines are not distorted by tests being added to WPT, and an engine that skips tests is not flattered for it).

1 month 3 months 6 months 1 year 2 years 4 years All time

Sort: alphabetical | by subtest count

Area	Chrome	Firefox	Safari	Ladybird	Servo	Blitz
Total	62.1%181/291	63.2%184/291	48.7%142/291	7.9%23/291	7.9%23/291	0.0%0/291
tentative	100.0%49/49	14.2%7/49	20.4%10/49	0.0%0/49	0.0%0/49	0.0%0/49

Test	Chrome	Firefox	Safari	Ladybird	Servo	Blitz
Total	54.5%132/242	73.1%177/242	54.5%132/242	9.5%23/242	9.5%23/242	NO DATA
RTCEncodedFrame-copy-construction.https.html	16/49	45/49	20/49	0/49	0/49	NOT RUN
RTCEncodedFrame-shared-buffer.https.html	2/2	2/2	2/2	0/2	0/2	NOT RUN
RTCRtpScriptTransform-bad-chunk.https.html	PASS	PASS	PASS	FAIL	FAIL	NOT RUN
RTCRtpScriptTransform-encoded-transform.https.html	5/13	12/13	0/13	0/13	0/13	NOT RUN
RTCRtpScriptTransform-padding.https.html	PASS	FAIL	PASS	FAIL	ERROR	NOT RUN
RTCRtpScriptTransform-sender-worker-single-frame.https.html	2/2	2/2	2/2	0/2	0/2	NOT RUN
RTCRtpScriptTransform-write-rules.https.html	10/10	10/10	4/10	0/10	0/10	NOT RUN
idlharness.https.window.html?exclude=.SFrame.	50/53	52/53	52/53	16/53	16/53	NOT RUN
idlharness.https.window.html?include=.SFrame.	8/49	8/49	8/49	7/49	7/49	NOT RUN
script-audio-transform.https.html	PASS	PASS	PASS	FAIL	FAIL	NOT RUN
script-change-transform.https.html	PASS	PASS	PASS	FAIL	FAIL	NOT RUN
script-late-transform.https.html	FAIL	FAIL	FAIL	FAIL	FAIL	NOT RUN
script-metadata-transform.https.html	24/25	19/25	17/25	0/25	0/25	NOT RUN
script-transform-generateKeyFrame-simulcast.https.html	0/3	3/3	2/3	0/3	0/3	NOT RUN
script-transform-generateKeyFrame.https.html	0/10	10/10	10/10	0/10	0/10	NOT RUN
script-transform-sendKeyFrameRequest.https.html	6/6	6/6	6/6	0/6	0/6	NOT RUN
script-transform.https.html	4/4	4/4	4/4	0/4	0/4	NOT RUN
script-write-twice-transform.https.html	PASS	PASS	PASS	FAIL	FAIL	NOT RUN
sframe-keys.https.html	0/2	0/2	0/2	0/2	0/2	NOT RUN
sframe-transform-buffer-source.html	FAIL	FAIL	FAIL	FAIL	FAIL	NOT RUN
sframe-transform-in-worker.https.html	FAIL	FAIL	FAIL	FAIL	FAIL	NOT RUN
sframe-transform-readable.html	FAIL	FAIL	FAIL	FAIL	FAIL	NOT RUN
sframe-transform.html	0/5	0/5	0/5	0/5	0/5	NOT RUN