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author | Nick Chalko <nchalko@google.com> | 2017-10-03 10:16:37 -0700 |
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committer | Nick Chalko <nchalko@google.com> | 2017-10-04 13:48:13 +0000 |
commit | 6ebde20b03db4c0d57f67acaac11832b610b966b (patch) | |
tree | d31e2adc1f9cce4f27ca07d30bee921032e33a3c /src/com/android/tv/tuner/exoplayer/audio/AudioTrackMonitor.java | |
parent | ee027a576ddebaf1ae739219be01b0240b15f80c (diff) | |
download | TV-6ebde20b03db4c0d57f67acaac11832b610b966b.tar.gz |
Sync to match Live Channels 1.15(ncis)oreo-mr1-dev
aka ub-tv-dev at a73a150bb7d0d1ce867ef980c6ac8411899d40ad
Bug: 64021596
Change-Id: I7c544fd15e2c58784f8babc31877ad0dfeebb4c0
(cherry picked from commit 633eb826b8c97731dfc5ef12c7bf78a63734275d)
Diffstat (limited to 'src/com/android/tv/tuner/exoplayer/audio/AudioTrackMonitor.java')
-rw-r--r-- | src/com/android/tv/tuner/exoplayer/audio/AudioTrackMonitor.java | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/com/android/tv/tuner/exoplayer/audio/AudioTrackMonitor.java b/src/com/android/tv/tuner/exoplayer/audio/AudioTrackMonitor.java new file mode 100644 index 00000000..ec616b13 --- /dev/null +++ b/src/com/android/tv/tuner/exoplayer/audio/AudioTrackMonitor.java @@ -0,0 +1,129 @@ +/* + * Copyright (C) 2015 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package com.android.tv.tuner.exoplayer.audio; + +import android.os.SystemClock; +import android.util.Log; +import android.util.Pair; + +import com.google.android.exoplayer.util.MimeTypes; +import java.util.ArrayList; +import java.util.HashSet; +import java.util.Set; + +/** + * Monitors the rendering position of {@link AudioTrack}. + */ +public class AudioTrackMonitor { + private static final String TAG = "AudioTrackMonitor"; + private static final boolean DEBUG = false; + + // For fetched audio samples + private final ArrayList<Pair<Long, Integer>> mPtsList = new ArrayList<>(); + private final Set<Integer> mSampleSize = new HashSet<>(); + private final Set<Integer> mCurSampleSize = new HashSet<>(); + private final Set<Integer> mHeader = new HashSet<>(); + + private long mExpireMs; + private long mDuration; + private long mSampleCount; + private long mTotalCount; + private long mStartMs; + + private boolean mIsMp2; + + private void flush() { + mExpireMs += mDuration; + mSampleCount = 0; + mCurSampleSize.clear(); + mPtsList.clear(); + } + + /** + * Resets and initializes {@link AudioTrackMonitor}. + * + * @param duration the frequency of monitoring in milliseconds + */ + public void reset(long duration) { + mExpireMs = SystemClock.elapsedRealtime(); + mDuration = duration; + mTotalCount = 0; + mStartMs = 0; + mSampleSize.clear(); + mHeader.clear(); + flush(); + } + + public void setEncoding(String mime) { + mIsMp2 = MimeTypes.AUDIO_MPEG_L2.equalsIgnoreCase(mime); + } + + /** + * Adds an audio sample information for monitoring. + * + * @param pts the presentation timestamp of the sample + * @param sampleSize the size in bytes of the sample + * @param header the bitrate & sampling information header of the sample + */ + public void addPts(long pts, int sampleSize, int header) { + mTotalCount++; + mSampleCount++; + mSampleSize.add(sampleSize); + mHeader.add(header); + mCurSampleSize.add(sampleSize); + if (mTotalCount == 1) { + mStartMs = SystemClock.elapsedRealtime(); + } + if (mPtsList.isEmpty() || mPtsList.get(mPtsList.size() - 1).first != pts) { + mPtsList.add(Pair.create(pts, 1)); + return; + } + Pair<Long, Integer> pair = mPtsList.get(mPtsList.size() - 1); + mPtsList.set(mPtsList.size() - 1, Pair.create(pair.first, pair.second + 1)); + } + + /** + * Logs if interested events are present. + * <p> + * Periodic logging is not enabled in release mode in order to avoid verbose logging. + */ + public void maybeLog() { + long now = SystemClock.elapsedRealtime(); + if (mExpireMs != 0 && now >= mExpireMs) { + if (DEBUG) { + long unitDuration = mIsMp2 ? MpegTsDefaultAudioTrackRenderer.MP2_SAMPLE_DURATION_US + : MpegTsDefaultAudioTrackRenderer.AC3_SAMPLE_DURATION_US; + long sampleDuration = (mTotalCount - 1) * unitDuration / 1000; + long totalDuration = now - mStartMs; + StringBuilder ptsBuilder = new StringBuilder(); + ptsBuilder.append("PTS received ").append(mSampleCount).append(", ") + .append(totalDuration - sampleDuration).append(' '); + + for (Pair<Long, Integer> pair : mPtsList) { + ptsBuilder.append('[').append(pair.first).append(':').append(pair.second) + .append("], "); + } + Log.d(TAG, ptsBuilder.toString()); + } + if (DEBUG || mCurSampleSize.size() > 1) { + Log.d(TAG, "PTS received sample size: " + + String.valueOf(mSampleSize) + mCurSampleSize + mHeader); + } + flush(); + } + } +} |