Closed Bug 1053011 Opened 7 years ago Closed 6 years ago
Context current Time is not aligned with processing blocks
AudioContexts process audio samples in blocks. "block-size is defined to be 128 sample-frames". Therefore currentTime should always correspond to block boundaries. Part of the reason why it doesn't is the ExtraCurrentTime added in https://hg.mozilla.org/mozilla-central/rev/1424d2e16349 But I'm guessing the other and more important bug is that currentTime is not derived from mCurrentTime instead of mStateComputedTime, which is the point where processing is reached. This means that mCurrentTime lags behind other main thread state.
We should investigate this again now that the refactoring has landed.
I frequency notice our clock is a bit wrong (too late, not aligned with processing blocks...). This is a pretty fundamental problem that we should fix, as it make everything better.
Priority: P2 → P1
Assignee: nobody → karlt
Status: NEW → ASSIGNED
bug 1053011 align "extra" time on AudioContext with processing block size r?padenot
Attachment #8664780 - Flags: review?(padenot)
I'll put a patch in bug 864171 to remove AudioContext::ExtraCurrentTime().
Attachment #8664780 - Flags: review?(padenot) → review+
Comment on attachment 8664780 [details] MozReview Request: bug 1053011 align "extra" time on AudioContext with processing block size r?padenot https://reviewboard.mozilla.org/r/20027/#review18313
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