| /* |
| * Copyright 2019 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 android.media.tv.tuner.frontend; |
| |
| import android.annotation.IntDef; |
| import android.annotation.NonNull; |
| import android.annotation.RequiresPermission; |
| import android.annotation.SystemApi; |
| import android.content.Context; |
| import android.hardware.tv.tuner.V1_0.Constants; |
| import android.media.tv.tuner.TunerUtils; |
| |
| import java.lang.annotation.Retention; |
| import java.lang.annotation.RetentionPolicy; |
| |
| /** |
| * Frontend settings for ATSC. |
| * |
| * @hide |
| */ |
| @SystemApi |
| public class AtscFrontendSettings extends FrontendSettings { |
| |
| /** @hide */ |
| @IntDef(flag = true, |
| prefix = "MODULATION_", |
| value = {MODULATION_UNDEFINED, MODULATION_AUTO, MODULATION_MOD_8VSB, |
| MODULATION_MOD_16VSB}) |
| @Retention(RetentionPolicy.SOURCE) |
| public @interface Modulation {} |
| |
| /** |
| * Modulation undefined. |
| */ |
| public static final int MODULATION_UNDEFINED = Constants.FrontendAtscModulation.UNDEFINED; |
| /** |
| * Hardware is able to detect and set modulation automatically |
| */ |
| public static final int MODULATION_AUTO = Constants.FrontendAtscModulation.AUTO; |
| /** |
| * 8VSB Modulation. |
| */ |
| public static final int MODULATION_MOD_8VSB = Constants.FrontendAtscModulation.MOD_8VSB; |
| /** |
| * 16VSB Modulation. |
| */ |
| public static final int MODULATION_MOD_16VSB = Constants.FrontendAtscModulation.MOD_16VSB; |
| |
| |
| private final int mModulation; |
| |
| private AtscFrontendSettings(int frequency, int modulation) { |
| super(frequency); |
| mModulation = modulation; |
| } |
| |
| /** |
| * Gets Modulation. |
| */ |
| @Modulation |
| public int getModulation() { |
| return mModulation; |
| } |
| |
| /** |
| * Creates a builder for {@link AtscFrontendSettings}. |
| * |
| * @param context the context of the caller. |
| */ |
| @RequiresPermission(android.Manifest.permission.ACCESS_TV_TUNER) |
| @NonNull |
| public static Builder builder(@NonNull Context context) { |
| TunerUtils.checkTunerPermission(context); |
| return new Builder(); |
| } |
| |
| /** |
| * Builder for {@link AtscFrontendSettings}. |
| */ |
| public static class Builder extends FrontendSettings.Builder<Builder> { |
| private int mModulation; |
| |
| private Builder() { |
| } |
| |
| /** |
| * Sets Modulation. |
| */ |
| @NonNull |
| public Builder setModulation(@Modulation int modulation) { |
| mModulation = modulation; |
| return this; |
| } |
| |
| /** |
| * Builds a {@link AtscFrontendSettings} object. |
| */ |
| @NonNull |
| public AtscFrontendSettings build() { |
| return new AtscFrontendSettings(mFrequency, mModulation); |
| } |
| |
| @Override |
| Builder self() { |
| return this; |
| } |
| } |
| |
| @Override |
| public int getType() { |
| return FrontendSettings.TYPE_ATSC; |
| } |
| } |