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ced7de15a9
DemoPlayer moves into core library as SimpleExoPlayer, which implements ExoPlayer. Issue: #383 Issue: #592 ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=123090184
86 lines
2.8 KiB
Java
86 lines
2.8 KiB
Java
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.android.exoplayer;
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/**
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* Maintains codec event counts, for debugging purposes only.
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* <p>
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* Counters should be written from the playback thread only. Counters may be read from any thread.
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* To ensure that the counter values are correctly reflected between threads, users of this class
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* should invoke {@link #ensureUpdated()} prior to reading and after writing.
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*/
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public final class CodecCounters {
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/**
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* The number of times the codec has been initialized.
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*/
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public int codecInitCount;
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/**
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* The number of times the codec has been released.
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*/
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public int codecReleaseCount;
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/**
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* The number of queued input buffers.
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*/
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public int inputBufferCount;
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/**
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* The number of rendered output buffers.
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*/
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public int renderedOutputBufferCount;
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/**
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* The number of skipped output buffers.
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* <p>
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* A skipped output buffer is an output buffer that was deliberately not rendered.
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*/
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public int skippedOutputBufferCount;
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/**
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* The number of dropped output buffers.
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* <p>
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* A dropped output buffer is an output buffer that was supposed to be rendered, but was instead
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* dropped because it could not be rendered in time.
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*/
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public int droppedOutputBufferCount;
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/**
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* The maximum number of dropped output buffers without an interleaving rendered output buffer.
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* <p>
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* Skipped output buffers are ignored for the purposes of calculating this value.
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*/
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public int maxConsecutiveDroppedOutputBufferCount;
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/**
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* Should be invoked from the playback thread after the counters have been updated. Should also
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* be invoked from any other thread that wishes to read the counters, before reading. These calls
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* ensure that counter updates are made visible to the reading threads.
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*/
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public synchronized void ensureUpdated() {
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// Do nothing. The use of synchronized ensures a memory barrier should another thread also
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// call this method.
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}
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/**
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* Resets all counters to zero.
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*/
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public void reset() {
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codecInitCount = 0;
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codecReleaseCount = 0;
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inputBufferCount = 0;
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renderedOutputBufferCount = 0;
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skippedOutputBufferCount = 0;
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droppedOutputBufferCount = 0;
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maxConsecutiveDroppedOutputBufferCount = 0;
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}
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}
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