18963 2012-09-21 22:28:51 +0000 Provide a mechanism for rate limiting appending 2012-12-06 01:57:00 +0000 1 1 1 Unclassified HTML WG Media Source Extensions unspecified PC Windows 3.1 RESOLVED FIXED tpac2012 P1 normal --- 20253 1 acolwell acolwell mike philipj public-html-media public-html-bugzilla oldest_to_newest 74272 0 acolwell 2012-09-21 22:28:51 +0000 This bug is the result of discussions around Bug 16998 http://lists.w3.org/Archives/Public/public-html-media/2012Jul/0074.html http://www.w3.org/2012/07/31-html-media-minutes.html#item05 Currently there is no mechanism for the UA to signal that it wants the web application to stop appending for a while. A UA might want to do this in a memory constrained environment to help the web application avoid appending "too far ahead" which might trigger media segment eviction (Section 2.10). It could be useful to have a mechanism that notifies the application when further appends will trigger evictions so the web application could use remove() (https://www.w3.org/Bugs/Public/show_bug.cgi?id=18709) to control what time ranges get removed. When the UA determines that enough data has been removed to allow appending again it can notify the application with an event. 79493 1 acolwell 2012-12-05 19:09:02 +0000 Based on discussions at TPAC (http://www.w3.org/2012/11/01-html-wg-minutes.html), it was decided to have append() throw an exception when the SourceBuffer is full. The application can use remove() to free up space in the buffer and try again. I plan on updating the spec text for append() to say that a QUOTA_EXCEEDED_ERR should be thrown if the SourceBuffer doesn't have space available to accommodate the data in the append. 79519 2 acolwell 2012-12-06 01:57:00 +0000 Changes committed http://dvcs.w3.org/hg/html-media/rev/43be42e69533