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/*
* Copyright (C) 2017 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 org.mozilla.thirdparty.com.google.android.exoplayer2.audio;
import android.annotation.TargetApi;
import androidx.annotation.Nullable;
import org.mozilla.thirdparty.com.google.android.exoplayer2.C;
import org.mozilla.thirdparty.com.google.android.exoplayer2.util.Util;
/**
* Attributes for audio playback, which configure the underlying platform
* {@link android.media.AudioTrack}.
* <p>
* To set the audio attributes, create an instance using the {@link Builder} and either pass it to
* {@link org.mozilla.thirdparty.com.google.android.exoplayer2SimpleExoPlayer#setAudioAttributes(AudioAttributes)} or
* send a message of type {@link C#MSG_SET_AUDIO_ATTRIBUTES} to the audio renderers.
* <p>
* This class is based on {@link android.media.AudioAttributes}, but can be used on all supported
* API versions.
*/
public final class AudioAttributes {
public static final AudioAttributes DEFAULT = new Builder().build();
/**
* Builder for {@link AudioAttributes}.
*/
public static final class Builder {
private @C.AudioContentType int contentType;
private @C.AudioFlags int flags;
private @C.AudioUsage int usage;
private @C.AudioAllowedCapturePolicy int allowedCapturePolicy;
/**
* Creates a new builder for {@link AudioAttributes}.
*
* <p>By default the content type is {@link C#CONTENT_TYPE_UNKNOWN}, usage is {@link
* C#USAGE_MEDIA}, capture policy is {@link C#ALLOW_CAPTURE_BY_ALL} and no flags are set.
*/
public Builder() {
contentType = C.CONTENT_TYPE_UNKNOWN;
flags = 0;
usage = C.USAGE_MEDIA;
allowedCapturePolicy = C.ALLOW_CAPTURE_BY_ALL;
}
/**
* @see android.media.AudioAttributes.Builder#setContentType(int)
*/
public Builder setContentType(@C.AudioContentType int contentType) {
this.contentType = contentType;
return this;
}
/**
* @see android.media.AudioAttributes.Builder#setFlags(int)
*/
public Builder setFlags(@C.AudioFlags int flags) {
this.flags = flags;
return this;
}
/**
* @see android.media.AudioAttributes.Builder#setUsage(int)
*/
public Builder setUsage(@C.AudioUsage int usage) {
this.usage = usage;
return this;
}
/** See {@link android.media.AudioAttributes.Builder#setAllowedCapturePolicy(int)}. */
public Builder setAllowedCapturePolicy(@C.AudioAllowedCapturePolicy int allowedCapturePolicy) {
this.allowedCapturePolicy = allowedCapturePolicy;
return this;
}
/** Creates an {@link AudioAttributes} instance from this builder. */
public AudioAttributes build() {
return new AudioAttributes(contentType, flags, usage, allowedCapturePolicy);
}
}
public final @C.AudioContentType int contentType;
public final @C.AudioFlags int flags;
public final @C.AudioUsage int usage;
public final @C.AudioAllowedCapturePolicy int allowedCapturePolicy;
@Nullable private android.media.AudioAttributes audioAttributesV21;
private AudioAttributes(
@C.AudioContentType int contentType,
@C.AudioFlags int flags,
@C.AudioUsage int usage,
@C.AudioAllowedCapturePolicy int allowedCapturePolicy) {
this.contentType = contentType;
this.flags = flags;
this.usage = usage;
this.allowedCapturePolicy = allowedCapturePolicy;
}
/**
* Returns a {@link android.media.AudioAttributes} from this instance.
*
* <p>Field {@link AudioAttributes#allowedCapturePolicy} is ignored for API levels prior to 29.
*/
@TargetApi(21)
public android.media.AudioAttributes getAudioAttributesV21() {
if (audioAttributesV21 == null) {
android.media.AudioAttributes.Builder builder =
new android.media.AudioAttributes.Builder()
.setContentType(contentType)
.setFlags(flags)
.setUsage(usage);
if (Util.SDK_INT >= 29) {
builder.setAllowedCapturePolicy(allowedCapturePolicy);
}
audioAttributesV21 = builder.build();
}
return audioAttributesV21;
}
@Override
public boolean equals(@Nullable Object obj) {
if (this == obj) {
return true;
}
if (obj == null || getClass() != obj.getClass()) {
return false;
}
AudioAttributes other = (AudioAttributes) obj;
return this.contentType == other.contentType
&& this.flags == other.flags
&& this.usage == other.usage
&& this.allowedCapturePolicy == other.allowedCapturePolicy;
}
@Override
public int hashCode() {
int result = 17;
result = 31 * result + contentType;
result = 31 * result + flags;
result = 31 * result + usage;
result = 31 * result + allowedCapturePolicy;
return result;
}
}
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