diff options
author | Nick Chalko <nchalko@google.com> | 2018-01-17 11:15:16 -0800 |
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committer | Nick Chalko <nchalko@google.com> | 2018-01-17 11:20:37 -0800 |
commit | 38fef3bf253578f518d1bc727da4afb263194398 (patch) | |
tree | 09a06234eda7c54216bca773b6d8407eafe0722d /src/com/android/tv/tuner/exoplayer/buffer/SamplePool.java | |
parent | c9889d13513e26649a7708cf2d0562cb592d441a (diff) | |
download | TV-38fef3bf253578f518d1bc727da4afb263194398.tar.gz |
Fix broken build
This reverts
c9889d1 Update aosp build to use a snapshot of exoplyer. by nchalko · 5
hours ago master
8952aa7 Clean format by nchalko · 20 hours ago
ba3fb16 Merge "Use a snapshot of exoplayer" by TreeHugger Robot · 18
hours ago
ff75e39 Project import generated by Copybara. by Live Channels Team · 22
hours ago
9737fc2 Use a snapshot of exoplayer by Nick Chalko · 20 hours ago
4a5144a Project import generated by Copybara. by Live Channels Team · 6
days ago
Bug: 72092981
Bug: 69474774
Change-Id: Ie756857c10bf052c60b6442c3d61252f65b49143
Diffstat (limited to 'src/com/android/tv/tuner/exoplayer/buffer/SamplePool.java')
-rw-r--r-- | src/com/android/tv/tuner/exoplayer/buffer/SamplePool.java | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/src/com/android/tv/tuner/exoplayer/buffer/SamplePool.java b/src/com/android/tv/tuner/exoplayer/buffer/SamplePool.java new file mode 100644 index 00000000..b89a14db --- /dev/null +++ b/src/com/android/tv/tuner/exoplayer/buffer/SamplePool.java @@ -0,0 +1,67 @@ +/* + * 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.buffer; + +import com.google.android.exoplayer.SampleHolder; +import java.util.LinkedList; + +/** Pool of samples to recycle ByteBuffers as much as possible. */ +public class SamplePool { + private final LinkedList<SampleHolder> mSamplePool = new LinkedList<>(); + + /** + * Acquires a sample with a buffer larger than size from the pool. Allocate new one or resize an + * existing buffer if necessary. + */ + public synchronized SampleHolder acquireSample(int size) { + if (mSamplePool.isEmpty()) { + SampleHolder sample = new SampleHolder(SampleHolder.BUFFER_REPLACEMENT_MODE_NORMAL); + sample.ensureSpaceForWrite(size); + return sample; + } + SampleHolder smallestSufficientSample = null; + SampleHolder maxSample = mSamplePool.getFirst(); + for (SampleHolder sample : mSamplePool) { + // Grab the smallest sufficient sample. + if (sample.data.capacity() >= size + && (smallestSufficientSample == null + || smallestSufficientSample.data.capacity() > sample.data.capacity())) { + smallestSufficientSample = sample; + } + + // Grab the max size sample. + if (maxSample.data.capacity() < sample.data.capacity()) { + maxSample = sample; + } + } + SampleHolder sampleFromPool = smallestSufficientSample; + + // If there's no sufficient sample, grab the maximum sample and resize it to size. + if (sampleFromPool == null) { + sampleFromPool = maxSample; + sampleFromPool.ensureSpaceForWrite(size); + } + mSamplePool.remove(sampleFromPool); + return sampleFromPool; + } + + /** Releases the sample back to the pool. */ + public synchronized void releaseSample(SampleHolder sample) { + sample.clearData(); + mSamplePool.offerLast(sample); + } +} |