| /* |
| * Copyright (C) 2018 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; |
| |
| import androidx.annotation.Nullable; |
| import com.google.android.exoplayer2.util.Util; |
| import java.util.Collections; |
| import java.util.List; |
| |
| /** Abstract base {@link Player} which implements common implementation independent methods. */ |
| public abstract class BasePlayer implements Player { |
| |
| protected final Timeline.Window window; |
| |
| public BasePlayer() { |
| window = new Timeline.Window(); |
| } |
| |
| @Override |
| public void setMediaItem(MediaItem mediaItem) { |
| setMediaItems(Collections.singletonList(mediaItem)); |
| } |
| |
| @Override |
| public void setMediaItem(MediaItem mediaItem, long startPositionMs) { |
| setMediaItems(Collections.singletonList(mediaItem), /* startWindowIndex= */ 0, startPositionMs); |
| } |
| |
| @Override |
| public void setMediaItem(MediaItem mediaItem, boolean resetPosition) { |
| setMediaItems(Collections.singletonList(mediaItem), resetPosition); |
| } |
| |
| @Override |
| public void setMediaItems(List<MediaItem> mediaItems, boolean resetPosition) { |
| setMediaItems( |
| mediaItems, /* startWindowIndex= */ C.INDEX_UNSET, /* startPositionMs= */ C.TIME_UNSET); |
| } |
| |
| @Override |
| public void setMediaItems(List<MediaItem> mediaItems) { |
| setMediaItems(mediaItems, /* resetPosition= */ true); |
| } |
| |
| @Override |
| public void addMediaItem(int index, MediaItem mediaItem) { |
| addMediaItems(index, Collections.singletonList(mediaItem)); |
| } |
| |
| @Override |
| public void addMediaItem(MediaItem mediaItem) { |
| addMediaItems(Collections.singletonList(mediaItem)); |
| } |
| |
| @Override |
| public void moveMediaItem(int currentIndex, int newIndex) { |
| if (currentIndex != newIndex) { |
| moveMediaItems(/* fromIndex= */ currentIndex, /* toIndex= */ currentIndex + 1, newIndex); |
| } |
| } |
| |
| @Override |
| public void removeMediaItem(int index) { |
| removeMediaItems(/* fromIndex= */ index, /* toIndex= */ index + 1); |
| } |
| |
| @Override |
| public final void play() { |
| setPlayWhenReady(true); |
| } |
| |
| @Override |
| public final void pause() { |
| setPlayWhenReady(false); |
| } |
| |
| @Override |
| public final boolean isPlaying() { |
| return getPlaybackState() == Player.STATE_READY |
| && getPlayWhenReady() |
| && getPlaybackSuppressionReason() == PLAYBACK_SUPPRESSION_REASON_NONE; |
| } |
| |
| @Override |
| public final void seekToDefaultPosition() { |
| seekToDefaultPosition(getCurrentWindowIndex()); |
| } |
| |
| @Override |
| public final void seekToDefaultPosition(int windowIndex) { |
| seekTo(windowIndex, /* positionMs= */ C.TIME_UNSET); |
| } |
| |
| @Override |
| public final void seekTo(long positionMs) { |
| seekTo(getCurrentWindowIndex(), positionMs); |
| } |
| |
| @Override |
| public final boolean hasPrevious() { |
| return getPreviousWindowIndex() != C.INDEX_UNSET; |
| } |
| |
| @Override |
| public final void previous() { |
| int previousWindowIndex = getPreviousWindowIndex(); |
| if (previousWindowIndex != C.INDEX_UNSET) { |
| seekToDefaultPosition(previousWindowIndex); |
| } |
| } |
| |
| @Override |
| public final boolean hasNext() { |
| return getNextWindowIndex() != C.INDEX_UNSET; |
| } |
| |
| @Override |
| public final void next() { |
| int nextWindowIndex = getNextWindowIndex(); |
| if (nextWindowIndex != C.INDEX_UNSET) { |
| seekToDefaultPosition(nextWindowIndex); |
| } |
| } |
| |
| @Override |
| public final void stop() { |
| stop(/* reset= */ false); |
| } |
| |
| @Override |
| public final int getNextWindowIndex() { |
| Timeline timeline = getCurrentTimeline(); |
| return timeline.isEmpty() |
| ? C.INDEX_UNSET |
| : timeline.getNextWindowIndex( |
| getCurrentWindowIndex(), getRepeatModeForNavigation(), getShuffleModeEnabled()); |
| } |
| |
| @Override |
| public final int getPreviousWindowIndex() { |
| Timeline timeline = getCurrentTimeline(); |
| return timeline.isEmpty() |
| ? C.INDEX_UNSET |
| : timeline.getPreviousWindowIndex( |
| getCurrentWindowIndex(), getRepeatModeForNavigation(), getShuffleModeEnabled()); |
| } |
| |
| @Override |
| @Nullable |
| public final Object getCurrentTag() { |
| Timeline timeline = getCurrentTimeline(); |
| return timeline.isEmpty() ? null : timeline.getWindow(getCurrentWindowIndex(), window).tag; |
| } |
| |
| @Override |
| @Nullable |
| public final Object getCurrentManifest() { |
| Timeline timeline = getCurrentTimeline(); |
| return timeline.isEmpty() ? null : timeline.getWindow(getCurrentWindowIndex(), window).manifest; |
| } |
| |
| @Override |
| public final int getBufferedPercentage() { |
| long position = getBufferedPosition(); |
| long duration = getDuration(); |
| return position == C.TIME_UNSET || duration == C.TIME_UNSET |
| ? 0 |
| : duration == 0 ? 100 : Util.constrainValue((int) ((position * 100) / duration), 0, 100); |
| } |
| |
| @Override |
| public final boolean isCurrentWindowDynamic() { |
| Timeline timeline = getCurrentTimeline(); |
| return !timeline.isEmpty() && timeline.getWindow(getCurrentWindowIndex(), window).isDynamic; |
| } |
| |
| @Override |
| public final boolean isCurrentWindowLive() { |
| Timeline timeline = getCurrentTimeline(); |
| return !timeline.isEmpty() && timeline.getWindow(getCurrentWindowIndex(), window).isLive; |
| } |
| |
| @Override |
| public final long getCurrentLiveOffset() { |
| Timeline timeline = getCurrentTimeline(); |
| if (timeline.isEmpty()) { |
| return C.TIME_UNSET; |
| } |
| long windowStartTimeMs = timeline.getWindow(getCurrentWindowIndex(), window).windowStartTimeMs; |
| if (windowStartTimeMs == C.TIME_UNSET) { |
| return C.TIME_UNSET; |
| } |
| return window.getCurrentUnixTimeMs() - window.windowStartTimeMs - getContentPosition(); |
| } |
| |
| @Override |
| public final boolean isCurrentWindowSeekable() { |
| Timeline timeline = getCurrentTimeline(); |
| return !timeline.isEmpty() && timeline.getWindow(getCurrentWindowIndex(), window).isSeekable; |
| } |
| |
| @Override |
| public final long getContentDuration() { |
| Timeline timeline = getCurrentTimeline(); |
| return timeline.isEmpty() |
| ? C.TIME_UNSET |
| : timeline.getWindow(getCurrentWindowIndex(), window).getDurationMs(); |
| } |
| |
| @RepeatMode |
| private int getRepeatModeForNavigation() { |
| @RepeatMode int repeatMode = getRepeatMode(); |
| return repeatMode == REPEAT_MODE_ONE ? REPEAT_MODE_OFF : repeatMode; |
| } |
| |
| /** Holds a listener reference. */ |
| protected static final class ListenerHolder { |
| |
| /** |
| * The listener on which {link #invoke} will execute {@link ListenerInvocation listener |
| * invocations}. |
| */ |
| public final Player.EventListener listener; |
| |
| private boolean released; |
| |
| public ListenerHolder(Player.EventListener listener) { |
| this.listener = listener; |
| } |
| |
| /** Prevents any further {@link ListenerInvocation} to be executed on {@link #listener}. */ |
| public void release() { |
| released = true; |
| } |
| |
| /** |
| * Executes the given {@link ListenerInvocation} on {@link #listener}. Does nothing if {@link |
| * #release} has been called on this instance. |
| */ |
| public void invoke(ListenerInvocation listenerInvocation) { |
| if (!released) { |
| listenerInvocation.invokeListener(listener); |
| } |
| } |
| |
| @Override |
| public boolean equals(@Nullable Object other) { |
| if (this == other) { |
| return true; |
| } |
| if (other == null || getClass() != other.getClass()) { |
| return false; |
| } |
| return listener.equals(((ListenerHolder) other).listener); |
| } |
| |
| @Override |
| public int hashCode() { |
| return listener.hashCode(); |
| } |
| } |
| |
| /** Parameterized invocation of a {@link Player.EventListener} method. */ |
| protected interface ListenerInvocation { |
| |
| /** Executes the invocation on the given {@link Player.EventListener}. */ |
| void invokeListener(Player.EventListener listener); |
| } |
| } |