62 lines
2.9 KiB
Diff
62 lines
2.9 KiB
Diff
From: csagan5 <32685696+csagan5@users.noreply.github.com>
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Date: Sun, 25 Mar 2018 21:49:37 +0200
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Subject: AudioBuffer, AnalyserNode: fp mitigations
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Truncate base latency precision to two digits
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---
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.../blink/renderer/modules/webaudio/analyser_node.idl | 8 ++++----
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.../blink/renderer/modules/webaudio/audio_buffer.idl | 6 ------
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.../blink/renderer/modules/webaudio/audio_context.cc | 4 +++-
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3 files changed, 7 insertions(+), 11 deletions(-)
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diff --git a/third_party/blink/renderer/modules/webaudio/analyser_node.idl b/third_party/blink/renderer/modules/webaudio/analyser_node.idl
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--- a/third_party/blink/renderer/modules/webaudio/analyser_node.idl
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+++ b/third_party/blink/renderer/modules/webaudio/analyser_node.idl
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@@ -40,10 +40,10 @@
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// Copies the current frequency data into the passed array.
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// If the array has fewer elements than the frequencyBinCount, the excess elements will be dropped.
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- [HighEntropy, Measure] void getFloatFrequencyData(Float32Array array);
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- [HighEntropy, Measure] void getByteFrequencyData(Uint8Array array);
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+ //[HighEntropy, Measure] void getFloatFrequencyData(Float32Array array);
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+ //[HighEntropy, Measure] void getByteFrequencyData(Uint8Array array);
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// Real-time waveform data
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- [HighEntropy, Measure] void getFloatTimeDomainData(Float32Array array);
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- [HighEntropy, Measure] void getByteTimeDomainData(Uint8Array array);
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+ //[HighEntropy, Measure] void getFloatTimeDomainData(Float32Array array);
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+ //[HighEntropy, Measure] void getByteTimeDomainData(Uint8Array array);
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};
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diff --git a/third_party/blink/renderer/modules/webaudio/audio_buffer.idl b/third_party/blink/renderer/modules/webaudio/audio_buffer.idl
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--- a/third_party/blink/renderer/modules/webaudio/audio_buffer.idl
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+++ b/third_party/blink/renderer/modules/webaudio/audio_buffer.idl
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@@ -37,12 +37,6 @@
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// Channel access
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readonly attribute unsigned long numberOfChannels;
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- [HighEntropy=Direct, Measure, RaisesException] Float32Array getChannelData(
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- unsigned long channelIndex);
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- [HighEntropy, Measure, RaisesException] void copyFromChannel(
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- Float32Array destination,
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- unsigned long channelNumber,
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- optional unsigned long bufferOffset = 0);
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[RaisesException] void copyToChannel(
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Float32Array source,
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unsigned long channelNumber,
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diff --git a/third_party/blink/renderer/modules/webaudio/audio_context.cc b/third_party/blink/renderer/modules/webaudio/audio_context.cc
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--- a/third_party/blink/renderer/modules/webaudio/audio_context.cc
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+++ b/third_party/blink/renderer/modules/webaudio/audio_context.cc
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@@ -398,7 +398,9 @@ double AudioContext::baseLatency() const {
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DCHECK(IsMainThread());
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DCHECK(destination());
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- return base_latency_;
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+ // remove precision past two decimal digits
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+ int l = base_latency_ * 100;
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+ return double(l)/100;
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}
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MediaElementAudioSourceNode* AudioContext::createMediaElementSource(
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--
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2.17.1
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