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472 lines
15 KiB
472 lines
15 KiB
/*
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* Copyright (C) 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License
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*/
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package android.telecom;
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import android.annotation.FloatRange;
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import android.annotation.IntDef;
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import android.annotation.IntRange;
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import android.os.Parcel;
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import android.os.Parcelable;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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/**
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* Represents attributes of video calls.
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*/
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public class VideoProfile implements Parcelable {
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/** @hide */
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@Retention(RetentionPolicy.SOURCE)
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@IntDef({QUALITY_UNKNOWN, QUALITY_HIGH, QUALITY_MEDIUM, QUALITY_LOW, QUALITY_DEFAULT})
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public @interface VideoQuality {}
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/**
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* "Unknown" video quality.
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* @hide
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*/
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public static final int QUALITY_UNKNOWN = 0;
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/**
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* "High" video quality.
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*/
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public static final int QUALITY_HIGH = 1;
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/**
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* "Medium" video quality.
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*/
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public static final int QUALITY_MEDIUM = 2;
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/**
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* "Low" video quality.
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*/
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public static final int QUALITY_LOW = 3;
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/**
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* Use default video quality.
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*/
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public static final int QUALITY_DEFAULT = 4;
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/** @hide */
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@Retention(RetentionPolicy.SOURCE)
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@IntDef(
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flag = true,
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prefix = { "STATE_" },
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value = {STATE_AUDIO_ONLY, STATE_TX_ENABLED, STATE_RX_ENABLED, STATE_BIDIRECTIONAL,
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STATE_PAUSED})
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public @interface VideoState {}
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/**
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* Used when answering or dialing a call to indicate that the call does not have a video
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* component.
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* <p>
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* Should <b>not</b> be used in comparison checks to determine if a video state represents an
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* audio-only call.
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* <p>
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* The following, for example, is not the correct way to check if a call is audio-only:
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* <pre>
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* {@code
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* // This is the incorrect way to check for an audio-only call.
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* if (videoState == VideoProfile.STATE_AUDIO_ONLY) {
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* // Handle audio-only call.
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* }
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* }
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* </pre>
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* <p>
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* Instead, use the {@link VideoProfile#isAudioOnly(int)} helper function to check if a
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* video state represents an audio-only call:
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* <pre>
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* {@code
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* // This is the correct way to check for an audio-only call.
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* if (VideoProfile.isAudioOnly(videoState)) {
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* // Handle audio-only call.
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* }
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* }
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* </pre>
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*/
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public static final int STATE_AUDIO_ONLY = 0x0;
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/**
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* Video transmission is enabled.
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*/
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public static final int STATE_TX_ENABLED = 0x1;
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/**
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* Video reception is enabled.
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*/
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public static final int STATE_RX_ENABLED = 0x2;
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/**
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* Video signal is bi-directional.
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*/
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public static final int STATE_BIDIRECTIONAL = STATE_TX_ENABLED | STATE_RX_ENABLED;
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/**
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* Video is paused.
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*/
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public static final int STATE_PAUSED = 0x4;
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private final int mVideoState;
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private final int mQuality;
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/**
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* Creates an instance of the VideoProfile
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*
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* @param videoState The video state.
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*/
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public VideoProfile(@VideoState int videoState) {
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this(videoState, QUALITY_DEFAULT);
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}
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/**
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* Creates an instance of the VideoProfile
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*
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* @param videoState The video state.
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* @param quality The video quality.
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*/
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public VideoProfile(@VideoState int videoState, @VideoQuality int quality) {
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mVideoState = videoState;
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mQuality = quality;
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}
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/**
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* The video state of the call.
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* Valid values: {@link VideoProfile#STATE_AUDIO_ONLY},
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* {@link VideoProfile#STATE_BIDIRECTIONAL},
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* {@link VideoProfile#STATE_TX_ENABLED},
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* {@link VideoProfile#STATE_RX_ENABLED},
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* {@link VideoProfile#STATE_PAUSED}.
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*/
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@VideoState
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public int getVideoState() {
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return mVideoState;
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}
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/**
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* The desired video quality for the call.
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* Valid values: {@link VideoProfile#QUALITY_HIGH}, {@link VideoProfile#QUALITY_MEDIUM},
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* {@link VideoProfile#QUALITY_LOW}, {@link VideoProfile#QUALITY_DEFAULT}.
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*/
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@VideoQuality
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public int getQuality() {
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return mQuality;
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}
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/**
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* Responsible for creating VideoProfile objects from deserialized Parcels.
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**/
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public static final @android.annotation.NonNull Parcelable.Creator<VideoProfile> CREATOR =
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new Parcelable.Creator<VideoProfile> () {
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/**
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* Creates a MediaProfile instances from a parcel.
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*
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* @param source The parcel.
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* @return The MediaProfile.
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*/
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@Override
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public VideoProfile createFromParcel(Parcel source) {
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int state = source.readInt();
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int quality = source.readInt();
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ClassLoader classLoader = VideoProfile.class.getClassLoader();
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return new VideoProfile(state, quality);
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}
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@Override
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public VideoProfile[] newArray(int size) {
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return new VideoProfile[size];
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}
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};
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/**
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* Describe the kinds of special objects contained in this Parcelable's
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* marshalled representation.
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*
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* @return a bitmask indicating the set of special object types marshalled
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* by the Parcelable.
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*/
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@Override
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public int describeContents() {
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return 0;
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}
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/**
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* Flatten this object in to a Parcel.
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*
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* @param dest The Parcel in which the object should be written.
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* @param flags Additional flags about how the object should be written.
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* May be 0 or {@link #PARCELABLE_WRITE_RETURN_VALUE}.
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*/
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@Override
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public void writeToParcel(Parcel dest, int flags) {
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dest.writeInt(mVideoState);
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dest.writeInt(mQuality);
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}
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@Override
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public String toString() {
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StringBuilder sb = new StringBuilder();
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sb.append("[VideoProfile videoState = ");
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sb.append(videoStateToString(mVideoState));
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sb.append(" videoQuality = ");
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sb.append(mQuality);
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sb.append("]");
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return sb.toString();
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}
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/**
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* Generates a string representation of a video state.
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*
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* @param videoState The video state.
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* @return String representation of the video state.
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*/
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public static String videoStateToString(@VideoState int videoState) {
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StringBuilder sb = new StringBuilder();
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sb.append("Audio");
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if (videoState == STATE_AUDIO_ONLY) {
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sb.append(" Only");
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} else {
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if (isTransmissionEnabled(videoState)) {
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sb.append(" Tx");
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}
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if (isReceptionEnabled(videoState)) {
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sb.append(" Rx");
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}
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if (isPaused(videoState)) {
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sb.append(" Pause");
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}
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}
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return sb.toString();
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}
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/**
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* Indicates whether the video state is audio only.
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* <p>
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* Note: Considers only whether either both the {@link #STATE_RX_ENABLED} or
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* {@link #STATE_TX_ENABLED} bits are off, but not {@link #STATE_PAUSED}.
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*
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* @param videoState The video state.
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* @return {@code True} if the video state is audio only, {@code false} otherwise.
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*/
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public static boolean isAudioOnly(@VideoState int videoState) {
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return !hasState(videoState, VideoProfile.STATE_TX_ENABLED)
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&& !hasState(videoState, VideoProfile.STATE_RX_ENABLED);
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}
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/**
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* Indicates whether video transmission or reception is enabled for a video state.
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*
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* @param videoState The video state.
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* @return {@code True} if video transmission or reception is enabled, {@code false} otherwise.
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*/
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public static boolean isVideo(@VideoState int videoState) {
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return hasState(videoState, VideoProfile.STATE_TX_ENABLED)
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|| hasState(videoState, VideoProfile.STATE_RX_ENABLED)
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|| hasState(videoState, VideoProfile.STATE_BIDIRECTIONAL);
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}
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/**
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* Indicates whether the video state has video transmission enabled.
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*
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* @param videoState The video state.
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* @return {@code True} if video transmission is enabled, {@code false} otherwise.
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*/
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public static boolean isTransmissionEnabled(@VideoState int videoState) {
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return hasState(videoState, VideoProfile.STATE_TX_ENABLED);
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}
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/**
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* Indicates whether the video state has video reception enabled.
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*
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* @param videoState The video state.
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* @return {@code True} if video reception is enabled, {@code false} otherwise.
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*/
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public static boolean isReceptionEnabled(@VideoState int videoState) {
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return hasState(videoState, VideoProfile.STATE_RX_ENABLED);
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}
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/**
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* Indicates whether the video state is bi-directional.
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*
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* @param videoState The video state.
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* @return {@code True} if the video is bi-directional, {@code false} otherwise.
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*/
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public static boolean isBidirectional(@VideoState int videoState) {
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return hasState(videoState, VideoProfile.STATE_BIDIRECTIONAL);
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}
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/**
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* Indicates whether the video state is paused.
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*
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* @param videoState The video state.
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* @return {@code True} if the video is paused, {@code false} otherwise.
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*/
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public static boolean isPaused(@VideoState int videoState) {
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return hasState(videoState, VideoProfile.STATE_PAUSED);
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}
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/**
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* Indicates if a specified state is set in a videoState bit-mask.
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*
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* @param videoState The video state bit-mask.
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* @param state The state to check.
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* @return {@code True} if the state is set.
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*/
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private static boolean hasState(@VideoState int videoState, @VideoState int state) {
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return (videoState & state) == state;
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}
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/**
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* Represents the camera capabilities important to a Video Telephony provider.
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*/
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public static final class CameraCapabilities implements Parcelable {
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/**
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* The width of the camera video in pixels.
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*/
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private final int mWidth;
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/**
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* The height of the camera video in pixels.
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*/
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private final int mHeight;
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/**
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* Whether the camera supports zoom.
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*/
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private final boolean mZoomSupported;
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/**
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* The maximum zoom supported by the camera.
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*/
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private final float mMaxZoom;
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/**
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* Create a call camera capabilities instance.
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*
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* @param width The width of the camera video (in pixels).
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* @param height The height of the camera video (in pixels).
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*/
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public CameraCapabilities(@IntRange(from = 0) int width, @IntRange(from = 0) int height) {
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this(width, height, false, 1.0f);
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}
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/**
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* Create a call camera capabilities instance that optionally supports zoom.
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*
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* @param width The width of the camera video (in pixels).
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* @param height The height of the camera video (in pixels).
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* @param zoomSupported True when camera supports zoom.
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* @param maxZoom Maximum zoom supported by camera.
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*/
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public CameraCapabilities(@IntRange(from = 0) int width, @IntRange(from = 0) int height,
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boolean zoomSupported, @FloatRange(from = 1.0f) float maxZoom) {
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mWidth = width;
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mHeight = height;
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mZoomSupported = zoomSupported;
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mMaxZoom = maxZoom;
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}
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/**
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* Responsible for creating CallCameraCapabilities objects from deserialized Parcels.
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**/
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public static final @android.annotation.NonNull Parcelable.Creator<CameraCapabilities> CREATOR =
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new Parcelable.Creator<CameraCapabilities> () {
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/**
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* Creates a CallCameraCapabilities instances from a parcel.
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*
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* @param source The parcel.
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* @return The CallCameraCapabilities.
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*/
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@Override
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public CameraCapabilities createFromParcel(Parcel source) {
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int width = source.readInt();
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int height = source.readInt();
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boolean supportsZoom = source.readByte() != 0;
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float maxZoom = source.readFloat();
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return new CameraCapabilities(width, height, supportsZoom, maxZoom);
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}
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@Override
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public CameraCapabilities[] newArray(int size) {
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return new CameraCapabilities[size];
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}
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};
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/**
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* Describe the kinds of special objects contained in this Parcelable's
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* marshalled representation.
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*
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* @return a bitmask indicating the set of special object types marshalled
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* by the Parcelable.
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*/
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@Override
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public int describeContents() {
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return 0;
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}
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/**
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* Flatten this object in to a Parcel.
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*
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* @param dest The Parcel in which the object should be written.
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* @param flags Additional flags about how the object should be written.
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* May be 0 or {@link #PARCELABLE_WRITE_RETURN_VALUE}.
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*/
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@Override
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public void writeToParcel(Parcel dest, int flags) {
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dest.writeInt(getWidth());
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dest.writeInt(getHeight());
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dest.writeByte((byte) (isZoomSupported() ? 1 : 0));
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dest.writeFloat(getMaxZoom());
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}
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/**
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* The width of the camera video in pixels.
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*/
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public int getWidth() {
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return mWidth;
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}
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/**
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* The height of the camera video in pixels.
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*/
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public int getHeight() {
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return mHeight;
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}
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/**
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* Returns {@code true} is zoom is supported, {@code false} otherwise.
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*/
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public boolean isZoomSupported() {
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return mZoomSupported;
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}
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/**
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* Returns the maximum zoom supported by the camera.
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*/
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public float getMaxZoom() {
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return mMaxZoom;
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}
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}
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}
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