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Pass the end position of a stream to TextRenderer when marking it final
In a period transition we pass the start time of the next period, for the final period we pass the duration of the period or timeline, if known. This means sideloaded subtitles now respect the end point of ClippingMediaSource and ensures that content subtitles aren't incorrectly displayed over mid-roll ads. When transitioning back into the subtitled content the subtitles still appear slightly before the video transitions, meaning the first subtitle of the content is shown with the last few frames of the ad. Resolving this in a way that doesn't break anything else requires a deeper investigation. Issue: google#5317 Issue: google#8456 #minor-release PiperOrigin-RevId: 361797118
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library/core/src/androidTest/java/com/google/android/exoplayer2/ClippedPlaybackTest.java
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| /* | ||
| * Copyright 2021 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 static androidx.test.platform.app.InstrumentationRegistry.getInstrumentation; | ||
| import static com.google.common.truth.Truth.assertThat; | ||
|
|
||
| import android.net.Uri; | ||
| import androidx.test.ext.junit.runners.AndroidJUnit4; | ||
| import com.google.android.exoplayer2.source.ClippingMediaSource; | ||
| import com.google.android.exoplayer2.text.Cue; | ||
| import com.google.android.exoplayer2.text.TextOutput; | ||
| import com.google.android.exoplayer2.util.ConditionVariable; | ||
| import com.google.android.exoplayer2.util.MimeTypes; | ||
| import com.google.common.collect.ImmutableList; | ||
| import com.google.common.collect.Iterables; | ||
| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.concurrent.atomic.AtomicReference; | ||
| import org.junit.Test; | ||
| import org.junit.runner.RunWith; | ||
|
|
||
| /** | ||
| * Instrumentation tests for playback of clipped items using {@link MediaItem#clippingProperties} or | ||
| * {@link ClippingMediaSource} directly. | ||
| */ | ||
| @RunWith(AndroidJUnit4.class) | ||
| public final class ClippedPlaybackTest { | ||
|
|
||
| @Test | ||
| public void subtitlesRespectClipping_singlePeriod() throws Exception { | ||
| MediaItem mediaItem = | ||
| new MediaItem.Builder() | ||
| .setUri("asset:///media/mp4/sample.mp4") | ||
| .setSubtitles( | ||
| ImmutableList.of( | ||
| new MediaItem.Subtitle( | ||
| Uri.parse("asset:///media/webvtt/typical"), | ||
| MimeTypes.TEXT_VTT, | ||
| "en", | ||
| C.SELECTION_FLAG_DEFAULT))) | ||
| // Expect the clipping to affect both subtitles and video. | ||
| .setClipEndPositionMs(1000) | ||
| .build(); | ||
| AtomicReference<SimpleExoPlayer> player = new AtomicReference<>(); | ||
| CapturingTextOutput textOutput = new CapturingTextOutput(); | ||
| ConditionVariable playbackEnded = new ConditionVariable(); | ||
| getInstrumentation() | ||
| .runOnMainSync( | ||
| () -> { | ||
| player.set(new SimpleExoPlayer.Builder(getInstrumentation().getContext()).build()); | ||
| player.get().addTextOutput(textOutput); | ||
| player | ||
| .get() | ||
| .addListener( | ||
| new Player.EventListener() { | ||
| @Override | ||
| public void onPlaybackStateChanged(@Player.State int state) { | ||
| if (state == Player.STATE_ENDED) { | ||
| playbackEnded.open(); | ||
| } | ||
| } | ||
| }); | ||
| player.get().setMediaItem(mediaItem); | ||
| player.get().prepare(); | ||
| player.get().play(); | ||
| }); | ||
|
|
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| playbackEnded.block(); | ||
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| getInstrumentation().runOnMainSync(() -> player.get().release()); | ||
| assertThat(Iterables.getOnlyElement(Iterables.concat(textOutput.cues)).text.toString()) | ||
| .isEqualTo("This is the first subtitle."); | ||
| } | ||
|
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| @Test | ||
| public void subtitlesRespectClipping_multiplePeriods() throws Exception { | ||
| ImmutableList<MediaItem> mediaItems = | ||
| ImmutableList.of( | ||
| new MediaItem.Builder() | ||
| .setUri("asset:///media/mp4/sample.mp4") | ||
| .setSubtitles( | ||
| ImmutableList.of( | ||
| new MediaItem.Subtitle( | ||
| Uri.parse("asset:///media/webvtt/typical"), | ||
| MimeTypes.TEXT_VTT, | ||
| "en", | ||
| C.SELECTION_FLAG_DEFAULT))) | ||
| // Expect the clipping to affect both subtitles and video. | ||
| .setClipEndPositionMs(1000) | ||
| .build(), | ||
| new MediaItem.Builder() | ||
| .setUri("asset:///media/mp4/sample.mp4") | ||
| // Not needed for correctness, just makes test run faster. Must be longer than the | ||
| // subtitle content (3.5s). | ||
| .setClipEndPositionMs(4_000) | ||
| .build()); | ||
| AtomicReference<SimpleExoPlayer> player = new AtomicReference<>(); | ||
| CapturingTextOutput textOutput = new CapturingTextOutput(); | ||
| ConditionVariable playbackEnded = new ConditionVariable(); | ||
| getInstrumentation() | ||
| .runOnMainSync( | ||
| () -> { | ||
| player.set(new SimpleExoPlayer.Builder(getInstrumentation().getContext()).build()); | ||
| player.get().addTextOutput(textOutput); | ||
| player | ||
| .get() | ||
| .addListener( | ||
| new Player.EventListener() { | ||
| @Override | ||
| public void onPlaybackStateChanged(@Player.State int state) { | ||
| if (state == Player.STATE_ENDED) { | ||
| playbackEnded.open(); | ||
| } | ||
| } | ||
| }); | ||
| player.get().setMediaItems(mediaItems); | ||
| player.get().prepare(); | ||
| player.get().play(); | ||
| }); | ||
|
|
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| playbackEnded.block(); | ||
|
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| getInstrumentation().runOnMainSync(() -> player.get().release()); | ||
| assertThat(Iterables.getOnlyElement(Iterables.concat(textOutput.cues)).text.toString()) | ||
| .isEqualTo("This is the first subtitle."); | ||
| } | ||
|
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| private static class CapturingTextOutput implements TextOutput { | ||
|
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| private final List<List<Cue>> cues; | ||
|
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| private CapturingTextOutput() { | ||
| cues = new ArrayList<>(); | ||
| } | ||
|
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| @Override | ||
| public void onCues(List<Cue> cues) { | ||
| this.cues.add(cues); | ||
| } | ||
| } | ||
| } |
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