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Bug 1204401 - Change the buffering criteria in MDSM::UpdateRenderedVideoFrames. r=jya.

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This commit is contained in:
JW Wang 2015-09-15 17:46:25 +08:00
parent 31f40d06b8
commit 4377c7b4a4
1 changed files with 2 additions and 2 deletions
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4
dom/media/MediaDecoderStateMachine.cpp
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@ -136,7 +136,7 @@ static_assert(LOW_DATA_THRESHOLD_USECS > AMPLE_AUDIO_USECS,
} // namespace detail
// Amount of excess usecs of data to add in to the "should we buffer" calculation.
static const uint32_t EXHAUSTED_DATA_MARGIN_USECS = 60000;
static const uint32_t EXHAUSTED_DATA_MARGIN_USECS = 100000;
// If we enter buffering within QUICK_BUFFER_THRESHOLD_USECS seconds of starting
// decoding, we'll enter "quick buffering" mode, which exits a lot sooner than
@ -2619,7 +2619,7 @@ void MediaDecoderStateMachine::UpdateRenderedVideoFrames()
mResource->IsExpectingMoreData()) {
bool shouldBuffer;
if (mReader->UseBufferingHeuristics()) {
shouldBuffer = HasLowDecodedData(remainingTime + EXHAUSTED_DATA_MARGIN_USECS) &&
shouldBuffer = HasLowDecodedData(EXHAUSTED_DATA_MARGIN_USECS) &&
(JustExitedQuickBuffering() || HasLowUndecodedData());
} else {
MOZ_ASSERT(mReader->IsWaitForDataSupported());