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Add SimpleExoPlayer.getVolume API

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Issue: #1754

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=130780466
This commit is contained in:
olly 2016-08-19 12:38:27 -07:00 committed by Oliver Woodman
parent 2c84f016fe
commit 9f1fc274c9
1 changed files with 48 additions and 4 deletions
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52
library/src/main/java/com/google/android/exoplayer2/SimpleExoPlayer.java
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@ -101,6 +101,8 @@ public final class SimpleExoPlayer implements ExoPlayer {
private DecoderCounters videoDecoderCounters;
private DecoderCounters audioDecoderCounters;
private int audioSessionId;
private float volume;
private PlaybackParamsHolder playbackParamsHolder;
/* package */ SimpleExoPlayer(Context context, TrackSelector trackSelector,
LoadControl loadControl, DrmSessionManager drmSessionManager,
@ -134,7 +136,10 @@ public final class SimpleExoPlayer implements ExoPlayer {
}
this.videoRendererCount = videoRendererCount;
this.audioRendererCount = audioRendererCount;
this.audioSessionId = AudioTrack.SESSION_ID_NOT_SET;
// Set initial values.
audioSessionId = AudioTrack.SESSION_ID_NOT_SET;
volume = 1;
// Build the player and associated objects.
player = new ExoPlayerImpl(renderers, trackSelector, loadControl);
@ -204,6 +209,7 @@ public final class SimpleExoPlayer implements ExoPlayer {
* @param volume The volume.
*/
public void setVolume(float volume) {
this.volume = volume;
ExoPlayerMessage[] messages = new ExoPlayerMessage[audioRendererCount];
int count = 0;
for (Renderer renderer : renderers) {
@ -215,11 +221,30 @@ public final class SimpleExoPlayer implements ExoPlayer {
}
/**
* Sets {@link PlaybackParams} governing audio playback.
*
* @param params The {@link PlaybackParams}.
* Returns the audio volume, with 0 being silence and 1 being unity gain.
*/
public float getVolume() {
return volume;
}
/**
* Sets the {@link PlaybackParams} governing audio playback.
*
* @param params The {@link PlaybackParams}, or null to clear any previously set parameters.
*/
@TargetApi(23)
public void setPlaybackParams(PlaybackParams params) {
if (params != null) {
// The audio renderers will call this on the playback thread to ensure they can query
// parameters without failure. We do the same up front, which is redundant except that it
// ensures an immediate call to getPlaybackParams will retrieve the instance with defaults
// allowed, rather than this change becoming visible sometime later once the audio renderers
// receive the parameters.
params.allowDefaults();
playbackParamsHolder = new PlaybackParamsHolder(params);
} else {
playbackParamsHolder = null;
}
ExoPlayerMessage[] messages = new ExoPlayerMessage[audioRendererCount];
int count = 0;
for (Renderer renderer : renderers) {
@ -230,6 +255,14 @@ public final class SimpleExoPlayer implements ExoPlayer {
player.sendMessages(messages);
}
/**
* Returns the {@link PlaybackParams} governing audio playback, or null if not set.
*/
@TargetApi(23)
public PlaybackParams getPlaybackParams() {
return playbackParamsHolder == null ? null : playbackParamsHolder.params;
}
/**
* Returns the video format currently being played, or null if no video is being played.
*/
@ -721,4 +754,15 @@ public final class SimpleExoPlayer implements ExoPlayer {
}
@TargetApi(23)
private static final class PlaybackParamsHolder {
public final PlaybackParams params;
public PlaybackParamsHolder(PlaybackParams params) {
this.params = params;
}
}
}