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6085d185fa
- Generalize rendererEnabledFlags to be selected track indices through ExoPlayerImpl/ExoPlayerImplInternal. - Selecting an out-of-bound track index (e.g. -1) is equivalent to disabling a renderer prior to the generalization. - A prepared TrackRenderer that exposes 0 tracks is equivalent to a TrackRenderer in the STATE_IGNORE state prior to the generalization. Issue #514.
77 lines
2 KiB
Java
77 lines
2 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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* A {@link TrackRenderer} that does nothing.
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* <p>
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* This renderer returns 0 from {@link #getTrackCount()} in order to request that it should be
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* ignored. {@link IllegalStateException} is thrown from all other methods documented to indicate
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* that they should not be invoked unless the renderer is prepared.
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*/
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public final class DummyTrackRenderer extends TrackRenderer {
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@Override
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protected boolean doPrepare(long positionUs) throws ExoPlaybackException {
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return true;
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}
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@Override
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protected int getTrackCount() {
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return 0;
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}
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@Override
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protected TrackInfo getTrackInfo(int track) {
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throw new IllegalStateException();
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}
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@Override
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protected boolean isEnded() {
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throw new IllegalStateException();
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}
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@Override
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protected boolean isReady() {
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throw new IllegalStateException();
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}
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@Override
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protected void seekTo(long positionUs) {
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throw new IllegalStateException();
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}
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@Override
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protected void doSomeWork(long positionUs, long elapsedRealtimeUs) {
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throw new IllegalStateException();
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}
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@Override
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protected void maybeThrowError() {
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throw new IllegalStateException();
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}
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@Override
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protected long getDurationUs() {
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throw new IllegalStateException();
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}
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@Override
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protected long getBufferedPositionUs() {
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throw new IllegalStateException();
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}
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}
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