222285 2021-02-22 12:32:54 -0800 MediaRecorder.requestData() not returning all captured media after a pause 2021-03-09 09:38:53 -0800 1 1 1 Unclassified WebKit WebRTC Safari Technology Preview iPhone / iPad iOS 14 RESOLVED FIXED InRadar P2 Normal --- 1 dmannion youennf eric.carlson ews-watchlist glenn jer.noble philipj sergio webkit-bug-importer youennf oldest_to_newest 1732256 0 dmannion 2021-02-22 12:32:54 -0800 iPadOS 14.5 BETA Safari 14.1 Not sure which build I'm using. When the mediaRecorder is paused and then requestData() is called, the onDataAvailable event is fired, but only 1117 bytes are returned (header???). This is true even if requestData() is called inside a setTimeout with a 10 sec delay. The recorded media can not be played until a second call to requestData() is made. requestData should "raise a dataavailable event containing a Blob object of the captured media as it was when the method was called", not just the first 1117 bytes. See: https://jsfiddle.net/drmannion/b184akv7/ 1) click Start Camera 2) Click Start Recording 3) Click Pause. In the console, notice that event.data size is 1117 4) Click Play. Notice that there is no video to play in the video element. In the console, the current blob array only contains one blob with 1117 bytes. Also note that the play button called requestData() again and this time the dataavailable event fired with the rest of the recorded data. 5) Click Play again. Now the recorded video plays. In the console, the current blob array now has two blobs. 1734544 1 webkit-bug-importer 2021-03-01 12:33:13 -0800 <rdar://problem/74884561> 1737517 2 422682 youennf 2021-03-09 02:49:29 -0800 Created attachment 422682 Patch 1737627 3 ews-feeder 2021-03-09 09:38:51 -0800 Committed r274154: <https://commits.webkit.org/r274154> All reviewed patches have been landed. Closing bug and clearing flags on attachment 422682. 422682 2021-03-09 02:49:29 -0800 2021-03-09 09:38:52 -0800 Patch bug-222285-20210309114926.patch text/plain 11322 youennf U3VidmVyc2lvbiBSZXZpc2lvbjogMjczODE2CmRpZmYgLS1naXQgYS9Tb3VyY2UvV2ViQ29yZS9D aGFuZ2VMb2cgYi9Tb3VyY2UvV2ViQ29yZS9DaGFuZ2VMb2cKaW5kZXggZDRkY2NmMjE0NGQyZjI2 ZWM0MWNmNjAzZjYxODNkZGYwMGJlYTM0YS4uMTU5YjVhMWU3YmNmMTYyNjM1ZDYxNDJiNDQ4NTY4 ZTI2NjI5MzkzZSAxMDA2NDQKLS0tIGEvU291cmNlL1dlYkNvcmUvQ2hhbmdlTG9nCisrKyBiL1Nv dXJjZS9XZWJDb3JlL0NoYW5nZUxvZwpAQCAtMSwzICsxLDMyIEBACisyMDIxLTAzLTA5ICBZb3Vl bm4gRmFibGV0ICA8eW91ZW5uQGFwcGxlLmNvbT4KKworICAgICAgICBNZWRpYVJlY29yZGVyLnJl cXVlc3REYXRhKCkgbm90IHJldHVybmluZyBhbGwgY2FwdHVyZWQgbWVkaWEgYWZ0ZXIgYSBwYXVz ZQorICAgICAgICBodHRwczovL2J1Z3Mud2Via2l0Lm9yZy9zaG93X2J1Zy5jZ2k/aWQ9MjIyMjg1 CisgICAgICAgIDxyZGFyOi8vcHJvYmxlbS83NDg4NDU2MT4KKworICAgICAgICBSZXZpZXdlZCBi eSBOT0JPRFkgKE9PUFMhKS4KKworICAgICAgICBQcmV2aW91c2x5LCB3aGVuIGZsdXNoaW5nLCB3 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