21150 2013-02-28 06:34:10 +0000 Changing duration while updating should fail 2013-03-04 19:39:37 +0000 1 1 1 Unclassified HTML WG Media Source Extensions unspecified All All RESOLVED WORKSFORME P2 normal --- 1 adrianba acolwell acolwell mike public-html-media public-html-bugzilla oldest_to_newest 83817 0 adrianba 2013-02-28 06:34:10 +0000 Changing the duration while an append or remove is pending should not be allowed. One specific problem is that reducing the duration relies on a remove operation, which can't be started if we are already in an updating situation. We think that an INVALID_STATE_ERR exception should be thrown before step 2 in 2.4.6 Duration change. 83946 1 acolwell 2013-03-04 17:27:56 +0000 As far as I can tell, duration changes triggered by the JavaScript are already blocked by pending appends. - Step 3 on the duration setter algorithm prevents setting during append.(https://dvcs.w3.org/hg/html-media/raw-file/default/media-source/media-source.html#widl-MediaSource-duration) - The duration change triggered by endOfStream() is protected by Step 2 in that algorithm. (https://dvcs.w3.org/hg/html-media/raw-file/default/media-source/media-source.html#widl-MediaSource-endOfStream-void-EndOfStreamError-error) I believe all other duration change calls are the result of algorithms run during an append so I believe it should be ok. Am I missing something? 83956 2 adrianba 2013-03-04 19:39:37 +0000 You're right - we missed it just focusing on reviewing the algorithm section.