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Set correct start time for newly enabled renderers during playback

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We currently pass in the time at which the stream originally started,
but newly enabled renderers should get the current playback position
instead.

PiperOrigin-RevId: 550894630
This commit is contained in:
tonihei 2023-07-25 16:29:44 +01:00 committed by Rohit Singh
parent 54093a152e
commit 79c8b0e0f8
2 changed files with 58 additions and 6 deletions
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15
libraries/exoplayer/src/main/java/androidx/media3/exoplayer/ExoPlayerImplInternal.java
View File

@ -1830,7 +1830,7 @@ import java.util.concurrent.atomic.AtomicBoolean;
}
}
}
enableRenderers(rendererWasEnabledFlags);
enableRenderers(rendererWasEnabledFlags, /* startPositionUs= */ rendererPositionUs);
} else {
// Release and re-prepare/buffer periods after the one whose selection changed.
queue.removeAfter(periodHolder);
@ -2558,10 +2558,13 @@ import java.util.concurrent.atomic.AtomicBoolean;
}
private void enableRenderers() throws ExoPlaybackException {
enableRenderers(/* rendererWasEnabledFlags= */ new boolean[renderers.length]);
enableRenderers(
/* rendererWasEnabledFlags= */ new boolean[renderers.length],
queue.getReadingPeriod().getStartPositionRendererTime());
}
private void enableRenderers(boolean[] rendererWasEnabledFlags) throws ExoPlaybackException {
private void enableRenderers(boolean[] rendererWasEnabledFlags, long startPositionUs)
throws ExoPlaybackException {
MediaPeriodHolder readingMediaPeriod = queue.getReadingPeriod();
TrackSelectorResult trackSelectorResult = readingMediaPeriod.getTrackSelectorResult();
// Reset all disabled renderers before enabling any new ones. This makes sure resources released
@ -2574,13 +2577,13 @@ import java.util.concurrent.atomic.AtomicBoolean;
// Enable the renderers.
for (int i = 0; i < renderers.length; i++) {
if (trackSelectorResult.isRendererEnabled(i)) {
enableRenderer(i, rendererWasEnabledFlags[i]);
enableRenderer(i, rendererWasEnabledFlags[i], startPositionUs);
}
}
readingMediaPeriod.allRenderersInCorrectState = true;
}
private void enableRenderer(int rendererIndex, boolean wasRendererEnabled)
private void enableRenderer(int rendererIndex, boolean wasRendererEnabled, long startPositionUs)
throws ExoPlaybackException {
Renderer renderer = renderers[rendererIndex];
if (isRendererEnabled(renderer)) {
@ -2607,7 +2610,7 @@ import java.util.concurrent.atomic.AtomicBoolean;
rendererPositionUs,
joining,
mayRenderStartOfStream,
periodHolder.getStartPositionRendererTime(),
startPositionUs,
periodHolder.getRendererOffset());
renderer.handleMessage(
Renderer.MSG_SET_WAKEUP_LISTENER,

49
libraries/exoplayer/src/test/java/androidx/media3/exoplayer/ExoPlayerTest.java
View File

@ -13843,6 +13843,55 @@ public final class ExoPlayerTest {
verify(listener, times(2)).onPlaybackStateChanged(Player.STATE_BUFFERING);
}
@Test
public void newlyEnabledRendererMidPlayback_receivesCurrentPlaybackPositionAsStartTime()
throws Exception {
AtomicLong startPositionInRendererUs = new AtomicLong();
AtomicLong rendererOffsetUs = new AtomicLong();
FakeRenderer newlyEnabledRenderer =
new FakeRenderer(C.TRACK_TYPE_AUDIO) {
@Override
protected void onStreamChanged(Format[] formats, long startPositionUs, long offsetUs)
throws ExoPlaybackException {
super.onStreamChanged(formats, startPositionUs, offsetUs);
startPositionInRendererUs.set(startPositionUs);
rendererOffsetUs.set(offsetUs);
}
};
Timeline timeline = new FakeTimeline();
ExoPlayer player =
new TestExoPlayerBuilder(context)
.setRenderers(new FakeRenderer(C.TRACK_TYPE_VIDEO), newlyEnabledRenderer)
.build();
player.setTrackSelectionParameters(
player
.getTrackSelectionParameters()
.buildUpon()
.setTrackTypeDisabled(C.TRACK_TYPE_AUDIO, /* disabled= */ true)
.build());
player.setMediaSource(
new FakeMediaSource(
timeline, ExoPlayerTestRunner.VIDEO_FORMAT, ExoPlayerTestRunner.AUDIO_FORMAT));
player.prepare();
playUntilPosition(player, /* mediaItemIndex= */ 0, /* positionMs= */ 1_250);
player.setTrackSelectionParameters(
player
.getTrackSelectionParameters()
.buildUpon()
.setTrackTypeDisabled(C.TRACK_TYPE_AUDIO, /* disabled= */ false)
.build());
player.play();
runUntilPlaybackState(player, STATE_ENDED);
player.release();
long expectedStartPositionInRendererUs =
1_250_000
+ rendererOffsetUs.get()
+ timeline.getWindow(/* windowIndex= */ 0, new Window()).positionInFirstPeriodUs;
assertThat(startPositionInRendererUs.get()).isEqualTo(expectedStartPositionInRendererUs);
}
// Internal methods.
private void addWatchAsSystemFeature() {