зеркало из https://github.com/mozilla/gecko-dev.git
Bug 1374475 - Don't throttle download of media files under 8MB in size. r=jwwang
The startup latency for an HTTP transaction can be high, this adds delay when we're seeking into an unbuffered range. So we should not throttle the download for small files, to speed up seeking. This also works around the problem in bug 1373618 in the case where the download is fast enough for the entire file to predownload before a seek. MozReview-Commit-ID: A8Hqi71IJ1H --HG-- extra : rebase_source : 30648d3ad62b8c0417b1244c896b43b670382e9c
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@ -1030,6 +1030,15 @@ MediaDecoder::ShouldThrottleDownload()
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MOZ_ASSERT(NS_IsMainThread());
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NS_ENSURE_TRUE(mDecoderStateMachine, false);
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int64_t length = mResource->GetLength();
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if (length > 0 &&
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length <= int64_t(MediaPrefs::MediaMemoryCacheMaxSize()) * 1024) {
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// Don't throttle the download of small resources. This is to speed
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// up seeking, as seeks into unbuffered ranges would require starting
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// up a new HTTP transaction, which adds latency.
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return false;
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}
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if (Preferences::GetBool("media.throttle-regardless-of-download-rate",
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false)) {
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return true;
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