Bug 257956

Summary: MediaStream from canvas (captureStream) cannot be rendered into a different canvas
Product: WebKit Reporter: Simon Leber <simon.leber>
Component: CanvasAssignee: youenn fablet <youennf>
Status: RESOLVED FIXED    
Severity: Normal CC: dino, eric.carlson, jer.noble, markericc02, roch.sebastien, simon.leber, webkit-bug-importer, youennf
Priority: P2 Keywords: InRadar
Version: Safari 16   
Hardware: Unspecified   
OS: Unspecified   
Attachments:
Description Flags
Reproduction none

Simon Leber
Reported 2023-06-12 08:02:40 PDT
The Mediastream returned from a canvas captureStream call can not be used to be rendered into another canvas using drawImage (2d context) or createImageBitmap/transferFromImageBitmap (bitmaprenderer context) The following CodePen shows the problem in a short example. https://codepen.io/sleb91/pen/bGQdPxq I have tested on Safari on Mac (Version 16.5 (18615.2.9.11.4)) and latest IOS Safari (16.5)
Attachments
Reproduction (1.35 KB, text/html)
2023-06-12 08:40 PDT, Sébastien Roch 		no flags
Details
View All Add attachment proposed patch, testcase, etc.
Sébastien Roch
Comment 1 2023-06-12 08:40:42 PDT
Created attachment 466670 [details] Reproduction Attached reproduction as simple HTML file.
Radar WebKit Bug Importer
Comment 2 2023-06-13 01:33:37 PDT
<rdar://problem/110696945>
youenn fablet
Comment 3 2023-06-13 01:36:19 PDT
Pull request: https://github.com/WebKit/WebKit/pull/14910
EWS
Comment 4 2023-06-13 11:40:31 PDT
Committed 265128@main (e7326a948d62): <https://commits.webkit.org/265128@main> Reviewed commits have been landed. Closing PR #14910 and removing active labels.
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