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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 / media-source

Spec: Media Source Extensions™ ↗

Runs: Chrome 155.0.8039.0 (wpt@3f6b09ae3, 2026-09-03) | Firefox 157.0a1 (wpt@3f6b09ae3, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-795e1 (wpt@7e3d005d7, 2026-09-03) | Servo Servo 0.6 (wpt@09159dcb3, 2026-09-02) | Blitz 188486089 (wpt@a95401e4e, 2026-09-02)

Sort areas: alphabetical | by subtest count

AreaChromeFirefoxSafariLadybirdServoBlitz
Total83.8%630/75264.6%486/75290.7%682/75251.2%385/7522.9%22/7520.0%0/752
dedicated-worker100.0%70/704.3%3/7095.7%67/702.9%2/700.0%0/700.0%0/70
mse-for-webcodecs100.0%26/260.0%0/260.0%0/260.0%0/260.0%0/260.0%0/26
TestChromeFirefoxSafariLadybirdServoBlitz
SourceBuffer-abort-readyState.html1/22/22/21/20/2NOT RUN
SourceBuffer-abort-removed.html1/22/22/20/20/2NOT RUN
SourceBuffer-abort-updating.html1/22/22/20/20/2NOT RUN
SourceBuffer-abort.html1/22/22/20/20/2NOT RUN
SourceBuffer-appendWindowEnd-rounding.html1/33/32/31/30/3NOT RUN
SourceBuffer-short-frame-endOfStream.html2/22/21/21/20/2NOT RUN
URL-createObjectURL-null.htmlPASSPASSPASSPASSPASSNOT RUN
URL-createObjectURL-revoke.html2/33/32/32/30/3NOT RUN
URL-createObjectURL.htmlPASSPASSPASSPASSFAILNOT RUN
idlharness.any.html121/148108/148144/148126/14810/148NOT RUN
idlharness.any.worker.html69/9511/9582/9586/9511/95NOT RUN
invalid-third-block.htmlPASSPASSPASSERRORFAILNOT RUN
last-frame-dimensions.html1/22/21/21/20/2NOT RUN
mediasource-activesourcebuffers.html8/86/88/84/80/8NOT RUN
mediasource-addsourcebuffer-mode.html2/21/22/21/20/2NOT RUN
mediasource-addsourcebuffer.html9/1010/1010/1010/100/10NOT RUN
mediasource-append-buffer.html23/2423/2422/249/240/24NOT RUN
mediasource-appendbuffer-quota-exceeded.htmlPASSFAILFAILTIMEOUTERRORNOT RUN
mediasource-appendwindow.html7/77/77/71/70/7NOT RUN
mediasource-attach-stops-delaying-load-event.htmlPASSPASSPASSPASSFAILNOT RUN
mediasource-avtracks.html2/40/44/40/40/4NOT RUN
mediasource-buffered-seek.htmlPASSPASSPASSTIMEOUTFAILNOT RUN
mediasource-buffered.html6/88/88/83/80/8NOT RUN
mediasource-changetype-play-implicit.html7/1615/1616/161/160/16NOT RUN
mediasource-changetype-play-negative.html28/4937/4949/4919/490/49NOT RUN
mediasource-changetype-play-without-codecs-parameter.html2/1914/1919/191/190/19NOT RUN
mediasource-changetype-play.html19/1914/1919/191/190/19NOT RUN
mediasource-changetype.html8/87/88/85/80/8NOT RUN
mediasource-closed.html10/1010/1010/109/100/10NOT RUN
mediasource-config-change-mp4-a-bitrate.htmlPASSPASSPASSTIMEOUTFAILNOT RUN
mediasource-config-change-mp4-av-audio-bitrate.htmlPASSPASSPASSTIMEOUTFAILNOT RUN
mediasource-config-change-mp4-av-framesize.htmlPASSPASSPASSTIMEOUTFAILNOT RUN
mediasource-config-change-mp4-av-video-bitrate.htmlPASSPASSPASSTIMEOUTFAILNOT RUN
mediasource-config-change-mp4-v-bitrate.htmlPASSPASSPASSFAILFAILNOT RUN
mediasource-config-change-mp4-v-framerate.htmlPASSPASSPASSFAILFAILNOT RUN
mediasource-config-change-mp4-v-framesize.htmlPASSPASSPASSFAILFAILNOT RUN
mediasource-config-change-webm-a-bitrate.htmlPASSPASSPASSTIMEOUTFAILNOT RUN
mediasource-config-change-webm-av-audio-bitrate.htmlPASSPASSPASSTIMEOUTFAILNOT RUN
mediasource-config-change-webm-av-framesize.htmlPASSPASSPASSTIMEOUTFAILNOT RUN
mediasource-config-change-webm-av-video-bitrate.htmlPASSPASSPASSTIMEOUTFAILNOT RUN
mediasource-config-change-webm-v-bitrate.htmlPASSPASSPASSFAILFAILNOT RUN
mediasource-config-change-webm-v-framerate.htmlPASSPASSPASSFAILFAILNOT RUN
mediasource-config-change-webm-v-framesize.htmlPASSPASSPASSFAILFAILNOT RUN
mediasource-correct-frames-after-reappend.htmlPASSPASSPASSTIMEOUTFAILNOT RUN
mediasource-correct-frames.htmlPASSPASSPASSTIMEOUTFAILNOT RUN
mediasource-detach.html2/20/22/21/20/2NOT RUN
mediasource-duration-boundaryconditions.html13/1313/1313/130/130/13NOT RUN
mediasource-duration.html9/98/99/90/90/9NOT RUN
mediasource-endofstream-invaliderror.html6/66/66/63/60/6NOT RUN
mediasource-endofstream.html2/33/33/30/30/3NOT RUN
mediasource-errors.html7/77/75/70/70/7NOT RUN
mediasource-getvideoplaybackquality.htmlPASSFAILPASSFAILFAILNOT RUN
mediasource-h264-play-starved.htmlPASSPASSPASSPASSFAILNOT RUN
mediasource-iamf-playback.htmlPASSFAILFAILFAILFAILNOT RUN
mediasource-invalid-codec.html2/22/22/21/20/2NOT RUN
mediasource-is-type-supported.html55/5548/5545/5555/550/55NOT RUN
mediasource-liveseekable.html10/1010/1010/102/100/10NOT RUN
mediasource-multiple-attach.html3/33/33/33/30/3NOT RUN
mediasource-play-then-seek-back.htmlPASSPASSPASSTIMEOUTFAILNOT RUN
mediasource-play.htmlPASSPASSPASSFAILFAILNOT RUN
mediasource-preload.html9/97/97/97/90/9NOT RUN
mediasource-redundant-seek.htmlPASSPASSPASSTIMEOUTFAILNOT RUN
mediasource-remove.html13/1717/1717/179/170/17NOT RUN
mediasource-removesourcebuffer.html7/77/77/71/70/7NOT RUN
mediasource-replay.htmlPASSPASSPASSFAILFAILNOT RUN
mediasource-seek-beyond-duration.html2/22/22/20/20/2NOT RUN
mediasource-seek-during-pending-seek.html2/22/22/20/20/2NOT RUN
mediasource-seekable.html3/33/33/30/30/3NOT RUN
mediasource-sequencemode-append-buffer.html0/33/33/30/30/3NOT RUN
mediasource-sourcebuffer-mode-timestamps.html2/20/22/20/20/2NOT RUN
mediasource-sourcebuffer-mode.html6/66/65/63/60/6NOT RUN
mediasource-sourcebufferlist.html5/55/54/50/50/5NOT RUN
mediasource-timestamp-offset.html15/1515/1515/1512/150/15NOT RUN
waiting-for-audio.htmlPASSPASSPASSTIMEOUTFAILNOT RUN