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Make ExtractorHolder a top-level class

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PiperOrigin-RevId: 296405881
This commit is contained in:
aquilescanta 2020-02-21 11:52:08 +00:00 committed by Oliver Woodman
parent 995682eca0
commit 4c05201a37
2 changed files with 94 additions and 70 deletions
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94
library/core/src/main/java/com/google/android/exoplayer2/source/ExtractorHolder.java Normal file
View file

@ -0,0 +1,94 @@
/*
* Copyright (C) 2020 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.google.android.exoplayer2.source;
import android.net.Uri;
import androidx.annotation.Nullable;
import com.google.android.exoplayer2.extractor.Extractor;
import com.google.android.exoplayer2.extractor.ExtractorInput;
import com.google.android.exoplayer2.extractor.ExtractorOutput;
import com.google.android.exoplayer2.util.Util;
import java.io.EOFException;
import java.io.IOException;
/** Stores a list of extractors and a selected extractor when the format has been detected. */
/* package */ final class ExtractorHolder {
private final Extractor[] extractors;
@Nullable private Extractor extractor;
/**
* Creates a holder that will select an extractor and initialize it using the specified output.
*
* @param extractors One or more extractors to choose from.
*/
public ExtractorHolder(Extractor[] extractors) {
this.extractors = extractors;
}
/**
* Returns an initialized extractor for reading {@code input}, and returns the same extractor on
* later calls.
*
* @param input The {@link ExtractorInput} from which data should be read.
* @param output The {@link ExtractorOutput} that will be used to initialize the selected
* extractor.
* @param uri The {@link Uri} of the data.
* @return An initialized extractor for reading {@code input}.
* @throws UnrecognizedInputFormatException Thrown if the input format could not be detected.
* @throws IOException Thrown if the input could not be read.
* @throws InterruptedException Thrown if the thread was interrupted.
*/
public Extractor selectExtractor(ExtractorInput input, ExtractorOutput output, Uri uri)
throws IOException, InterruptedException {
if (extractor != null) {
return extractor;
}
if (extractors.length == 1) {
this.extractor = extractors[0];
} else {
for (Extractor extractor : extractors) {
try {
if (extractor.sniff(input)) {
this.extractor = extractor;
break;
}
} catch (EOFException e) {
// Do nothing.
} finally {
input.resetPeekPosition();
}
}
if (extractor == null) {
throw new UnrecognizedInputFormatException(
"None of the available extractors ("
+ Util.getCommaDelimitedSimpleClassNames(extractors)
+ ") could read the stream.",
uri);
}
}
extractor.init(output);
return extractor;
}
public void release() {
if (extractor != null) {
extractor.release();
extractor = null;
}
}
}

70
library/core/src/main/java/com/google/android/exoplayer2/source/ProgressiveMediaPeriod.java
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@ -53,7 +53,6 @@ import com.google.android.exoplayer2.util.ConditionVariable;
import com.google.android.exoplayer2.util.MimeTypes;
import com.google.android.exoplayer2.util.ParsableByteArray;
import com.google.android.exoplayer2.util.Util;
import java.io.EOFException;
import java.io.IOException;
import java.util.Arrays;
import java.util.Collections;
@ -1040,75 +1039,6 @@ import org.checkerframework.checker.nullness.qual.MonotonicNonNull;
}
}
/** Stores a list of extractors and a selected extractor when the format has been detected. */
private static final class ExtractorHolder {
private final Extractor[] extractors;
@Nullable private Extractor extractor;
/**
* Creates a holder that will select an extractor and initialize it using the specified output.
*
* @param extractors One or more extractors to choose from.
*/
public ExtractorHolder(Extractor[] extractors) {
this.extractors = extractors;
}
/**
* Returns an initialized extractor for reading {@code input}, and returns the same extractor on
* later calls.
*
* @param input The {@link ExtractorInput} from which data should be read.
* @param output The {@link ExtractorOutput} that will be used to initialize the selected
* extractor.
* @param uri The {@link Uri} of the data.
* @return An initialized extractor for reading {@code input}.
* @throws UnrecognizedInputFormatException Thrown if the input format could not be detected.
* @throws IOException Thrown if the input could not be read.
* @throws InterruptedException Thrown if the thread was interrupted.
*/
public Extractor selectExtractor(ExtractorInput input, ExtractorOutput output, Uri uri)
throws IOException, InterruptedException {
if (extractor != null) {
return extractor;
}
if (extractors.length == 1) {
this.extractor = extractors[0];
} else {
for (Extractor extractor : extractors) {
try {
if (extractor.sniff(input)) {
this.extractor = extractor;
break;
}
} catch (EOFException e) {
// Do nothing.
} finally {
input.resetPeekPosition();
}
}
if (extractor == null) {
throw new UnrecognizedInputFormatException(
"None of the available extractors ("
+ Util.getCommaDelimitedSimpleClassNames(extractors)
+ ") could read the stream.",
uri);
}
}
extractor.init(output);
return extractor;
}
public void release() {
if (extractor != null) {
extractor.release();
extractor = null;
}
}
}
/** Stores state that is initialized when preparation completes. */
private static final class PreparedState {