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Expose AudioOffload track state.

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Adds a new event to AudioOffloadListener to get the offload state of the track, which indicates when software decoding is taking place.

PiperOrigin-RevId: 465264362
(cherry picked from commit fe2b846552)
This commit is contained in:
yschimke 2022-08-04 09:47:41 +00:00 committed by microkatz
parent 318d838258
commit 6865cd4d07
2 changed files with 33 additions and 1 deletions
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10
library/core/src/main/java/com/google/android/exoplayer2/ExoPlayer.java
View file

@ -423,6 +423,16 @@ public interface ExoPlayer extends Player {
* <p>This method is experimental, and will be renamed or removed in a future release.
*/
default void onExperimentalSleepingForOffloadChanged(boolean sleepingForOffload) {}
/**
* Called when the value of {@link AudioTrack#isOffloadedPlayback} changes.
*
* <p>This should not be generally required to be acted upon. But when offload is critical for
* efficiency, or audio features (gapless, playback speed), this will let the app know.
*
* <p>This method is experimental, and will be renamed or removed in a future release.
*/
default void onExperimentalOffloadedPlayback(boolean offloadedPlayback) {}
}
/**

24
library/core/src/main/java/com/google/android/exoplayer2/audio/DefaultAudioSink.java
View file

@ -39,6 +39,7 @@ import androidx.annotation.IntDef;
import androidx.annotation.Nullable;
import androidx.annotation.RequiresApi;
import com.google.android.exoplayer2.C;
import com.google.android.exoplayer2.ExoPlayer.AudioOffloadListener;
import com.google.android.exoplayer2.Format;
import com.google.android.exoplayer2.PlaybackParameters;
import com.google.android.exoplayer2.analytics.PlayerId;
@ -265,6 +266,7 @@ public final class DefaultAudioSink implements AudioSink {
private boolean enableAudioTrackPlaybackParams;
private int offloadMode;
AudioTrackBufferSizeProvider audioTrackBufferSizeProvider;
@Nullable AudioOffloadListener audioOffloadListener;
/** Creates a new builder. */
public Builder() {
@ -370,6 +372,19 @@ public final class DefaultAudioSink implements AudioSink {
return this;
}
/**
* Sets an optional {@link AudioOffloadListener} to receive events relevant to offloaded
* playback.
*
* <p>The default value is null.
*/
@CanIgnoreReturnValue
public Builder setExperimentalAudioOffloadListener(
@Nullable AudioOffloadListener audioOffloadListener) {
this.audioOffloadListener = audioOffloadListener;
return this;
}
/** Builds the {@link DefaultAudioSink}. Must only be called once per Builder instance. */
public DefaultAudioSink build() {
if (audioProcessorChain == null) {
@ -500,6 +515,7 @@ public final class DefaultAudioSink implements AudioSink {
initializationExceptionPendingExceptionHolder;
private final PendingExceptionHolder<WriteException> writeExceptionPendingExceptionHolder;
private final AudioTrackBufferSizeProvider audioTrackBufferSizeProvider;
@Nullable private final AudioOffloadListener audioOffloadListener;
@Nullable private PlayerId playerId;
@Nullable private Listener listener;
@ -660,6 +676,7 @@ public final class DefaultAudioSink implements AudioSink {
new PendingExceptionHolder<>(AUDIO_TRACK_RETRY_DURATION_MS);
writeExceptionPendingExceptionHolder =
new PendingExceptionHolder<>(AUDIO_TRACK_RETRY_DURATION_MS);
audioOffloadListener = builder.audioOffloadListener;
}
// AudioSink implementation.
@ -1087,7 +1104,12 @@ public final class DefaultAudioSink implements AudioSink {
private AudioTrack buildAudioTrack(Configuration configuration) throws InitializationException {
try {
return configuration.buildAudioTrack(tunneling, audioAttributes, audioSessionId);
AudioTrack audioTrack =
configuration.buildAudioTrack(tunneling, audioAttributes, audioSessionId);
if (audioOffloadListener != null) {
audioOffloadListener.onExperimentalOffloadedPlayback(isOffloadedPlayback(audioTrack));
}
return audioTrack;
} catch (InitializationException e) {
if (listener != null) {
listener.onAudioSinkError(e);