am ec78f551: Add avg bandwidth estimate every 2 seconds - do not merge. (f181e416) · Commits · e / os / android_frameworks_base

media/libstagefright/NuHTTPDataSource.cpp

+11 −0

Original line number	Diff line number	Diff line
		@@ -100,6 +100,7 @@ NuHTTPDataSource::NuHTTPDataSource(uint32_t flags)
		mNumBandwidthHistoryItems(0),
		mTotalTransferTimeUs(0),
		mTotalTransferBytes(0),
		mPrevBandwidthMeasureTimeUs(0),
		mDecryptHandle(NULL),
		mDrmManagerClient(NULL) {
		}
		@@ -534,6 +535,16 @@ void NuHTTPDataSource::addBandwidthMeasurement_l(
		mTotalTransferBytes -= entry->mNumBytes;
		mBandwidthHistory.erase(mBandwidthHistory.begin());
		--mNumBandwidthHistoryItems;
		int64_t timeNowUs = ALooper::GetNowUs();
		if (timeNowUs - mPrevBandwidthMeasureTimeUs > 2000000LL) {
		if (mPrevBandwidthMeasureTimeUs != 0) {
		double estimatedBandwidth =
		((double)mTotalTransferBytes * 8E3 / mTotalTransferTimeUs);
		LOGI("estimated avg bandwidth is %8.2f kbps in the past %lld us",
		estimatedBandwidth, timeNowUs - mPrevBandwidthMeasureTimeUs);
		}
		mPrevBandwidthMeasureTimeUs = timeNowUs;
		}
		}
		}

+1 −0

Original line number	Diff line number	Diff line
		@@ -97,6 +97,7 @@ private:
		size_t mNumBandwidthHistoryItems;
		int64_t mTotalTransferTimeUs;
		size_t mTotalTransferBytes;
		int64_t mPrevBandwidthMeasureTimeUs;

		DecryptHandle *mDecryptHandle;
		DrmManagerClient *mDrmManagerClient;