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Refactored Decoder into librespot-decoder-api
1 parent 2f1cda4 commit 77a5584

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Lines changed: 182 additions & 81 deletions

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‎decoder-api/pom.xml‎

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<!--
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~ Copyright 2021 devgianlu
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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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<project xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://maven.apache.org/POM/4.0.0"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>xyz.gianlu.librespot</groupId>
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<artifactId>librespot-java</artifactId>
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<version>1.5.6-SNAPSHOT</version>
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<relativePath>../pom.xml</relativePath>
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</parent>
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<artifactId>librespot-decoder-api</artifactId>
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<packaging>jar</packaging>
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<name>librespot-java decoder API</name>
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<dependencies>
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<dependency>
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<groupId>xyz.gianlu.librespot</groupId>
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<artifactId>librespot-sink-api</artifactId>
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<version>${project.version}</version>
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</dependency>
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<!-- Logging -->
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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<version>${slf4j-api.version}</version>
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</dependency>
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</dependencies>
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</project>

player/src/main/java/xyz/gianlu/librespot/player/decoders/Decoder.java renamed to decoder-api/src/main/java/xyz/gianlu/librespot/player/decoders/Decoder.java

Lines changed: 4 additions & 16 deletions
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@@ -19,31 +19,27 @@
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import org.jetbrains.annotations.NotNull;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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import xyz.gianlu.librespot.audio.AbsChunkedInputStream;
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import xyz.gianlu.librespot.audio.GeneralAudioStream;
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import xyz.gianlu.librespot.player.mixing.output.OutputAudioFormat;
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import java.io.Closeable;
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import java.io.IOException;
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import java.io.OutputStream;
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/**
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* @author Gianlu
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* @author devgianlu
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*/
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public abstract class Decoder implements Closeable {
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public static final int BUFFER_SIZE = 2048;
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private static final Logger LOGGER = LoggerFactory.getLogger(Decoder.class);
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protected final AbsChunkedInputStream audioIn;
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protected final SeekableInputStream audioIn;
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protected final float normalizationFactor;
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protected final int duration;
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private final GeneralAudioStream audioFile;
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protected volatile boolean closed = false;
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protected int seekZero = 0;
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private OutputAudioFormat format;
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public Decoder(@NotNull GeneralAudioStream audioFile, float normalizationFactor, int duration) {
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this.audioIn = audioFile.stream();
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this.audioFile = audioFile;
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public Decoder(@NotNull SeekableInputStream audioIn, float normalizationFactor, int duration) {
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this.audioIn = audioIn;
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this.duration = duration;
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this.normalizationFactor = normalizationFactor;
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}
@@ -106,14 +102,6 @@ public final int size() {
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return audioIn.size();
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}
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public final int decodedLength() {
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return audioIn.decodedLength();
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}
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public final int decryptTimeMs() {
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return audioFile.decryptTimeMs();
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}
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public static class CannotGetTimeException extends Exception {
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public CannotGetTimeException(String message) {
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super(message);

‎decoder-api/src/main/java/xyz/gianlu/librespot/player/decoders/SeekableInputStream.java‎

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/*
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* Copyright 2021 devgianlu
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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 xyz.gianlu.librespot.player.decoders;
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import java.io.IOException;
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import java.io.InputStream;
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/**
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* @author devgianlu
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*/
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public abstract class SeekableInputStream extends InputStream {
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public abstract int size();
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public abstract int position();
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public abstract void seek(int seekZero) throws IOException;
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public abstract long skip(long skip) throws IOException;
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public abstract int read(byte[] buffer, int index, int length) throws IOException;
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public abstract void close();
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public abstract int decodedLength();
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}

‎lib/pom.xml‎

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@@ -82,6 +82,24 @@
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</build>
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<dependencies>
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<dependency>
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<groupId>xyz.gianlu.librespot</groupId>
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<artifactId>librespot-decoder-api</artifactId>
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<version>${project.version}</version>
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</dependency>
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<!-- Audio -->
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<dependency>
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<groupId>org.jcraft</groupId>
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<artifactId>jorbis</artifactId>
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<version>0.0.17</version>
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</dependency>
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<dependency>
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<groupId>com.badlogicgames.jlayer</groupId>
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<artifactId>jlayer</artifactId>
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<version>1.0.2-gdx</version>
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</dependency>
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<!-- Data -->
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<dependency>
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<groupId>com.google.protobuf</groupId>

‎lib/src/main/java/xyz/gianlu/librespot/audio/AbsChunkedInputStream.java‎

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@@ -17,16 +17,16 @@
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package xyz.gianlu.librespot.audio;
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import org.jetbrains.annotations.NotNull;
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import xyz.gianlu.librespot.player.decoders.SeekableInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import static xyz.gianlu.librespot.audio.storage.ChannelManager.CHUNK_SIZE;
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/**
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* @author Gianlu
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* @author devgianlu
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*/
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public abstract class AbsChunkedInputStream extends InputStream implements HaltListener {
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public abstract class AbsChunkedInputStream extends SeekableInputStream implements HaltListener {
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private static final int PRELOAD_AHEAD = 3;
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private static final int PRELOAD_CHUNK_RETRIES = 2;
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private static final int MAX_CHUNK_TRIES = 128;
@@ -82,10 +82,12 @@ public final synchronized void reset() {
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pos = mark;
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}
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85-
public final synchronized int pos() {
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@Override
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public final synchronized int position() {
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return pos;
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}
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@Override
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public final synchronized void seek(int where) throws IOException {
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if (where < 0) throw new IllegalArgumentException();
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if (closed) throw new IOException("Stream is closed!");
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}
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}
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@Override
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public int decodedLength() {
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return decodedLength;
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}

lib/src/main/java/xyz/gianlu/librespot/audio/GeneralAudioStream.java renamed to lib/src/main/java/xyz/gianlu/librespot/audio/DecodedAudioStream.java

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/**
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* @author Gianlu
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* @author devgianlu
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*/
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public interface GeneralAudioStream {
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public interface DecodedAudioStream {
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@NotNull
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AbsChunkedInputStream stream();
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‎lib/src/main/java/xyz/gianlu/librespot/audio/PlayableContentFeeder.java‎

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@@ -183,7 +183,7 @@ private LoadedStream loadEpisode(@NotNull EpisodeId id, @NotNull AudioQualityPic
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}
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}
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private static class FileAudioStream implements GeneralAudioStream {
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private static class FileAudioStream implements DecodedAudioStream {
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private static final Logger LOGGER = LoggerFactory.getLogger(FileAudioStream.class);
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private final File file;
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private final RandomAccessFile raf;
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public static class LoadedStream {
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public final MetadataWrapper metadata;
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public final GeneralAudioStream in;
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public final DecodedAudioStream in;
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public final NormalizationData normalizationData;
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public final Metrics metrics;
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public LoadedStream(@NotNull Metadata.Track track, @NotNull GeneralAudioStream in, @Nullable NormalizationData normalizationData, @NotNull Metrics metrics) {
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public LoadedStream(@NotNull Metadata.Track track, @NotNull DecodedAudioStream in, @Nullable NormalizationData normalizationData, @NotNull Metrics metrics) {
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this.metadata = new MetadataWrapper(track, null, null);
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this.in = in;
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this.normalizationData = normalizationData;
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this.metrics = metrics;
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}
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public LoadedStream(@NotNull Metadata.Episode episode, @NotNull GeneralAudioStream in, @Nullable NormalizationData normalizationData, @NotNull Metrics metrics) {
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public LoadedStream(@NotNull Metadata.Episode episode, @NotNull DecodedAudioStream in, @Nullable NormalizationData normalizationData, @NotNull Metrics metrics) {
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this.metadata = new MetadataWrapper(null, episode, null);
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this.in = in;
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this.normalizationData = normalizationData;
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this.metrics = metrics;
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}
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private LoadedStream(@NotNull LocalId id, @NotNull GeneralAudioStream in) {
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private LoadedStream(@NotNull LocalId id, @NotNull DecodedAudioStream in) {
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this.metadata = new MetadataWrapper(null, null, id);
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this.in = in;
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this.normalizationData = null;

‎lib/src/main/java/xyz/gianlu/librespot/audio/cdn/CdnManager.java‎

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}
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}
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198-
public class Streamer implements GeneralAudioStream, GeneralWritableStream {
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public class Streamer implements DecodedAudioStream, GeneralWritableStream {
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private final StreamId streamId;
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private final ExecutorService executorService = Executors.newCachedThreadPool(new NameThreadFactory((r) -> "cdn-async-" + r.hashCode()));
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private final SuperAudioFormat format;

player/src/main/java/xyz/gianlu/librespot/player/decoders/AudioQuality.java renamed to lib/src/main/java/xyz/gianlu/librespot/audio/decoders/AudioQuality.java

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* limitations under the License.
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*/
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package xyz.gianlu.librespot.player.decoders;
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package xyz.gianlu.librespot.audio.decoders;
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import com.spotify.metadata.Metadata.AudioFile;
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import org.jetbrains.annotations.NotNull;

player/src/main/java/xyz/gianlu/librespot/player/decoders/Decoders.java renamed to lib/src/main/java/xyz/gianlu/librespot/audio/decoders/Decoders.java

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* limitations under the License.
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*/
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package xyz.gianlu.librespot.player.decoders;
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package xyz.gianlu.librespot.audio.decoders;
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import org.jetbrains.annotations.NotNull;
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import org.jetbrains.annotations.Nullable;
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import org.slf4j.Logger;
2222
import org.slf4j.LoggerFactory;
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import xyz.gianlu.librespot.audio.GeneralAudioStream;
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import xyz.gianlu.librespot.audio.format.SuperAudioFormat;
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import xyz.gianlu.librespot.player.decoders.Decoder;
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import xyz.gianlu.librespot.player.decoders.SeekableInputStream;
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import java.util.*;
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4142
}
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4344
@Nullable
44-
public static Decoder initDecoder(@NotNull SuperAudioFormat format, @NotNull GeneralAudioStream audioFile, float normalizationFactor, int duration) {
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public static Decoder initDecoder(@NotNull SuperAudioFormat format, @NotNull SeekableInputStream audioIn, float normalizationFactor, int duration) {
4546
Set<Class<? extends Decoder>> set = decoders.get(format);
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if (set == null) return null;
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5152
try {
5253
Class<? extends Decoder> clazz = opt.get();
53-
return clazz.getConstructor(GeneralAudioStream.class, float.class, int.class).newInstance(audioFile, normalizationFactor, duration);
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return clazz.getConstructor(SeekableInputStream.class, float.class, int.class).newInstance(audioIn, normalizationFactor, duration);
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} catch (ReflectiveOperationException ex) {
5556
LOGGER.error("Failed initializing Codec instance for {}", format, ex);
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return null;

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