|
| 1 | +/* |
| 2 | + * Copyright 2021 devgianlu |
| 3 | + * |
| 4 | + * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + * you may not use this file except in compliance with the License. |
| 6 | + * You may obtain a copy of the License at |
| 7 | + * |
| 8 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | + * |
| 10 | + * Unless required by applicable law or agreed to in writing, software |
| 11 | + * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + * See the License for the specific language governing permissions and |
| 14 | + * limitations under the License. |
| 15 | + */ |
| 16 | + |
| 17 | +package xyz.gianlu.librespot.player.codecs; |
| 18 | + |
| 19 | +import org.jetbrains.annotations.NotNull; |
| 20 | +import org.jetbrains.annotations.Nullable; |
| 21 | +import org.slf4j.Logger; |
| 22 | +import org.slf4j.LoggerFactory; |
| 23 | +import xyz.gianlu.librespot.audio.GeneralAudioStream; |
| 24 | +import xyz.gianlu.librespot.audio.NormalizationData; |
| 25 | +import xyz.gianlu.librespot.audio.format.SuperAudioFormat; |
| 26 | +import xyz.gianlu.librespot.player.PlayerConfiguration; |
| 27 | + |
| 28 | +import java.util.*; |
| 29 | + |
| 30 | +/** |
| 31 | + * @author devgianlu |
| 32 | + */ |
| 33 | +public final class Codecs { |
| 34 | + private static final Map<SuperAudioFormat, HashSet<Class<? extends Codec>>> codecs = new EnumMap<>(SuperAudioFormat.class); |
| 35 | + private static final Logger LOGGER = LoggerFactory.getLogger(Codecs.class); |
| 36 | + |
| 37 | + static { |
| 38 | + registerCodec(SuperAudioFormat.VORBIS, VorbisCodec.class); |
| 39 | + registerCodec(SuperAudioFormat.MP3, Mp3Codec.class); |
| 40 | + } |
| 41 | + |
| 42 | + private Codecs() { |
| 43 | + } |
| 44 | + |
| 45 | + @Nullable |
| 46 | + public static Codec initCodec(@NotNull SuperAudioFormat format, @NotNull GeneralAudioStream audioFile, @Nullable NormalizationData normalizationData, @NotNull PlayerConfiguration conf, int duration) { |
| 47 | + Set<Class<? extends Codec>> set = codecs.get(format); |
| 48 | + if (set == null) return null; |
| 49 | + |
| 50 | + Optional<Class<? extends Codec>> opt = set.stream().findFirst(); |
| 51 | + if (!opt.isPresent()) return null; |
| 52 | + |
| 53 | + try { |
| 54 | + Class<? extends Codec> clazz = opt.get(); |
| 55 | + return clazz.getConstructor(GeneralAudioStream.class, NormalizationData.class, PlayerConfiguration.class, int.class).newInstance(audioFile, normalizationData, conf, duration); |
| 56 | + } catch (ReflectiveOperationException ex) { |
| 57 | + LOGGER.error("Failed initializing Codec instance for {}", format, ex); |
| 58 | + return null; |
| 59 | + } |
| 60 | + } |
| 61 | + |
| 62 | + public static void registerCodec(@NotNull SuperAudioFormat format, @NotNull Class<? extends Codec> clazz) { |
| 63 | + codecs.computeIfAbsent(format, (key) -> new HashSet<>(5)).add(clazz); |
| 64 | + } |
| 65 | + |
| 66 | + public static void replaceCodecs(@NotNull SuperAudioFormat format, @NotNull Class<? extends Codec> clazz) { |
| 67 | + Set<Class<? extends Codec>> set = codecs.get(format); |
| 68 | + if (set != null) set.clear(); |
| 69 | + registerCodec(format, clazz); |
| 70 | + } |
| 71 | + |
| 72 | + public static void unregisterCodec(@NotNull Class<? extends Codec> clazz) { |
| 73 | + for (Set<Class<? extends Codec>> set : codecs.values()) |
| 74 | + set.remove(clazz); |
| 75 | + } |
| 76 | +} |
0 commit comments