- From: <bugzilla@jessica.w3.org>
- Date: Wed, 19 Sep 2012 19:03:50 +0000
- To: public-html-bugzilla@w3.org
https://www.w3.org/Bugs/Public/show_bug.cgi?id=18921 Summary: append(data) should accept any part of media segment Product: HTML WG Version: unspecified Platform: All OS/Version: All Status: NEW Severity: normal Priority: P2 Component: Media Source Extensions AssignedTo: adrianba@microsoft.com ReportedBy: whadar@gmail.com QAContact: public-html-bugzilla@w3.org CC: mike@w3.org, public-html-media@w3.org >From step 6 of the append method, as defined in the spec: If data is part of a media segment and timestampOffset is not 0: 1.Find all timestamps inside data and add timestampOffset to them. 2.If any of the modified timestamps are earlier than the presentation start time, then call endOfStream("decode"), and abort these steps. 3.Copy the contents of data, with the modified timestamps, into the source buffer. The definition of "part of a media segment" have several conditions that needs to be addressed. In particular, a part of a media segment that is not continuous to a previously appended buffer. In seeking scenario, after the current source buffer is aborted, a user might append a buffer which is not a beginning of a segment. In that case, the browser should discard all the bytes that are prior to a beginning of a segment. This will protect the playback from failing. In some cases, there can be several "small" appends which are part of previous segment which should all be discarded, until the append of buffer the contain the start of a segment. Without that, js developers must employ parsers to have the accurate offset of all segments. -- Configure bugmail: https://www.w3.org/Bugs/Public/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the QA contact for the bug.
Received on Wednesday, 19 September 2012 19:03:51 UTC