1 /*
2  * Copyright (C) 2014 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package android.media.tv;
18 
19 import android.annotation.IntDef;
20 import android.annotation.NonNull;
21 import android.annotation.Nullable;
22 import android.annotation.SdkConstant;
23 import android.annotation.StringDef;
24 import android.annotation.SystemApi;
25 import android.annotation.SdkConstant.SdkConstantType;
26 import android.app.Activity;
27 import android.content.ComponentName;
28 import android.content.ContentResolver;
29 import android.content.ContentUris;
30 import android.content.Context;
31 import android.content.Intent;
32 import android.net.Uri;
33 import android.os.Bundle;
34 import android.os.IBinder;
35 import android.provider.BaseColumns;
36 import android.text.TextUtils;
37 import android.util.ArraySet;
38 
39 import java.lang.annotation.Retention;
40 import java.lang.annotation.RetentionPolicy;
41 import java.util.ArrayList;
42 import java.util.HashMap;
43 import java.util.List;
44 import java.util.Map;
45 
46 /**
47  * The contract between the TV provider and applications. Contains definitions for the supported
48  * URIs and columns.
49  * <h3>Overview</h3>
50  *
51  * <p>TvContract defines a basic database of TV content metadata such as channel and program
52  * information. The information is stored in {@link Channels} and {@link Programs} tables.
53  *
54  * <ul>
55  *     <li>A row in the {@link Channels} table represents information about a TV channel. The data
56  *         format can vary greatly from standard to standard or according to service provider, thus
57  *         the columns here are mostly comprised of basic entities that are usually seen to users
58  *         regardless of standard such as channel number and name.</li>
59  *     <li>A row in the {@link Programs} table represents a set of data describing a TV program such
60  *         as program title and start time.</li>
61  * </ul>
62  */
63 public final class TvContract {
64     /** The authority for the TV provider. */
65     public static final String AUTHORITY = "android.media.tv";
66 
67     /**
68      * Permission to read TV listings. This is required to read all the TV channel and program
69      * information available on the system.
70      * @hide
71      */
72     public static final String PERMISSION_READ_TV_LISTINGS = "android.permission.READ_TV_LISTINGS";
73 
74     private static final String PATH_CHANNEL = "channel";
75     private static final String PATH_PROGRAM = "program";
76     private static final String PATH_RECORDED_PROGRAM = "recorded_program";
77     private static final String PATH_PREVIEW_PROGRAM = "preview_program";
78     private static final String PATH_WATCH_NEXT_PROGRAM = "watch_next_program";
79     private static final String PATH_PASSTHROUGH = "passthrough";
80 
81     /**
82      * Broadcast Action: sent when an application requests the system to make the given channel
83      * browsable.  The operation is performed in the background without user interaction. This
84      * is only relevant to channels with {@link Channels#TYPE_PREVIEW} type.
85      *
86      * <p>The intent must contain the following bundle parameters:
87      * <ul>
88      *     <li>{@link #EXTRA_CHANNEL_ID}: ID for the {@link Channels#TYPE_PREVIEW} channel as a long
89      *     integer.</li>
90      *     <li>{@link #EXTRA_PACKAGE_NAME}: the package name of the requesting application.</li>
91      * </ul>
92      * @hide
93      */
94     @SystemApi
95     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
96     public static final String ACTION_CHANNEL_BROWSABLE_REQUESTED =
97             "android.media.tv.action.CHANNEL_BROWSABLE_REQUESTED";
98 
99     /**
100      * Activity Action: sent by an application telling the system to make the given channel
101      * browsable with user interaction. The system may show UI to ask user to approve the channel.
102      * This is only relevant to channels with {@link Channels#TYPE_PREVIEW} type. Use
103      * {@link Activity#startActivityForResult} to get the result of the request.
104      *
105      * <p>The intent must contain the following bundle parameters:
106      * <ul>
107      *     <li>{@link #EXTRA_CHANNEL_ID}: ID for the {@link Channels#TYPE_PREVIEW} channel as a long
108      *     integer.</li>
109      * </ul>
110      */
111     @SdkConstant(SdkConstantType.ACTIVITY_INTENT_ACTION)
112     public static final String ACTION_REQUEST_CHANNEL_BROWSABLE =
113             "android.media.tv.action.REQUEST_CHANNEL_BROWSABLE";
114 
115     /**
116      * Broadcast Action: sent by the system to tell the target TV input that one of its preview
117      * program's browsable state is disabled, i.e., it will no longer be shown to users, which, for
118      * example, might be a result of users' interaction with UI. The input is expected to delete the
119      * preview program from the content provider.
120      *
121      * <p>The intent must contain the following bundle parameter:
122      * <ul>
123      *     <li>{@link #EXTRA_PREVIEW_PROGRAM_ID}: the disabled preview program ID.</li>
124      * </ul>
125      */
126     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
127     public static final String ACTION_PREVIEW_PROGRAM_BROWSABLE_DISABLED =
128             "android.media.tv.action.PREVIEW_PROGRAM_BROWSABLE_DISABLED";
129 
130     /**
131      * Broadcast Action: sent by the system to tell the target TV input that one of its "watch next"
132      * program's browsable state is disabled, i.e., it will no longer be shown to users, which, for
133      * example, might be a result of users' interaction with UI. The input is expected to delete the
134      * "watch next" program from the content provider.
135      *
136      * <p>The intent must contain the following bundle parameter:
137      * <ul>
138      *     <li>{@link #EXTRA_WATCH_NEXT_PROGRAM_ID}: the disabled "watch next" program ID.</li>
139      * </ul>
140      */
141     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
142     public static final String ACTION_WATCH_NEXT_PROGRAM_BROWSABLE_DISABLED =
143             "android.media.tv.action.WATCH_NEXT_PROGRAM_BROWSABLE_DISABLED";
144 
145     /**
146      * Broadcast Action: sent by the system to tell the target TV input that one of its existing
147      * preview programs is added to the watch next programs table by user.
148      *
149      * <p>The intent must contain the following bundle parameters:
150      * <ul>
151      *     <li>{@link #EXTRA_PREVIEW_PROGRAM_ID}: the ID of the existing preview program.</li>
152      *     <li>{@link #EXTRA_WATCH_NEXT_PROGRAM_ID}: the ID of the new watch next program.</li>
153      * </ul>
154      */
155     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
156     public static final String ACTION_PREVIEW_PROGRAM_ADDED_TO_WATCH_NEXT =
157             "android.media.tv.action.PREVIEW_PROGRAM_ADDED_TO_WATCH_NEXT";
158 
159     /**
160      * Broadcast Action: sent to the target TV input after it is first installed to notify the input
161      * to initialize its channels and programs to the system content provider.
162      *
163      * <p>Note that this intent is sent only on devices with
164      * {@link android.content.pm.PackageManager#FEATURE_LEANBACK} enabled. Besides that, in order
165      * to receive this intent, the target TV input must:
166      * <ul>
167      *     <li>Declare a broadcast receiver for this intent in its
168      *         <code>AndroidManifest.xml</code>.</li>
169      *     <li>Declare appropriate permissions to write channel and program data in its
170      *         <code>AndroidManifest.xml</code>.</li>
171      * </ul>
172      */
173     @SdkConstant(SdkConstantType.BROADCAST_INTENT_ACTION)
174     public static final String ACTION_INITIALIZE_PROGRAMS =
175             "android.media.tv.action.INITIALIZE_PROGRAMS";
176 
177     /**
178      * The key for a bundle parameter containing a channel ID as a long integer
179      */
180     public static final String EXTRA_CHANNEL_ID = "android.media.tv.extra.CHANNEL_ID";
181 
182     /**
183      * The key for a bundle parameter containing a package name as a string.
184      * @hide
185      */
186     @SystemApi
187     public static final String EXTRA_PACKAGE_NAME = "android.media.tv.extra.PACKAGE_NAME";
188 
189     /** The key for a bundle parameter containing a program ID as a long integer. */
190     public static final String EXTRA_PREVIEW_PROGRAM_ID =
191             "android.media.tv.extra.PREVIEW_PROGRAM_ID";
192 
193     /** The key for a bundle parameter containing a watch next program ID as a long integer. */
194     public static final String EXTRA_WATCH_NEXT_PROGRAM_ID =
195             "android.media.tv.extra.WATCH_NEXT_PROGRAM_ID";
196 
197     /**
198      * The key for a bundle parameter containing the result code of a method call as an integer.
199      *
200      * @see #RESULT_OK
201      * @see #RESULT_ERROR_IO
202      * @see #RESULT_ERROR_INVALID_ARGUMENT
203      * @hide
204      */
205     @SystemApi
206     public static final String EXTRA_RESULT_CODE = "android.media.tv.extra.RESULT_CODE";
207 
208     /**
209      * The result code for a successful execution without error.
210      * @hide
211      */
212     @SystemApi
213     public static final int RESULT_OK = 0;
214 
215     /**
216      * The result code for a failure from I/O operation.
217      * @hide
218      */
219     @SystemApi
220     public static final int RESULT_ERROR_IO = 1;
221 
222     /**
223      * The result code for a failure from invalid argument.
224      * @hide
225      */
226     @SystemApi
227     public static final int RESULT_ERROR_INVALID_ARGUMENT = 2;
228 
229     /**
230      * The method name to get existing columns in the given table of the specified content provider.
231      *
232      * <p>The method caller must provide the following parameter:
233      * <ul>
234      *     <li>{@code arg}: The content URI of the target table as a {@link String}.</li>
235      * </ul>
236 
237      * <p>On success, the returned {@link android.os.Bundle} will include existing column names
238      * with the key {@link #EXTRA_EXISTING_COLUMN_NAMES}. Otherwise, the return value will be {@code null}.
239      *
240      * @see ContentResolver#call(Uri, String, String, Bundle)
241      * @see #EXTRA_EXISTING_COLUMN_NAMES
242      * @hide
243      */
244     @SystemApi
245     public static final String METHOD_GET_COLUMNS = "get_columns";
246 
247     /**
248      * The method name to add a new column in the given table of the specified content provider.
249      *
250      * <p>The method caller must provide the following parameter:
251      * <ul>
252      *     <li>{@code arg}: The content URI of the target table as a {@link String}.</li>
253      *     <li>{@code extra}: Name, data type, and default value of the new column in a Bundle:
254      *         <ul>
255      *             <li>{@link #EXTRA_COLUMN_NAME} the column name as a {@link String}.</li>
256      *             <li>{@link #EXTRA_DATA_TYPE} the data type as a {@link String}.</li>
257      *             <li>{@link #EXTRA_DEFAULT_VALUE} the default value as a {@link String}.
258      *                 (optional)</li>
259      *         </ul>
260      *     </li>
261      * </ul>
262      *
263      * <p>On success, the returned {@link android.os.Bundle} will include current colum names after
264      * the addition operation with the key {@link #EXTRA_EXISTING_COLUMN_NAMES}. Otherwise, the
265      * return value will be {@code null}.
266      *
267      * @see ContentResolver#call(Uri, String, String, Bundle)
268      * @see #EXTRA_COLUMN_NAME
269      * @see #EXTRA_DATA_TYPE
270      * @see #EXTRA_DEFAULT_VALUE
271      * @see #EXTRA_EXISTING_COLUMN_NAMES
272      * @hide
273      */
274     @SystemApi
275     public static final String METHOD_ADD_COLUMN = "add_column";
276 
277     /**
278      * The method name to get all the blocked packages. When a package is blocked, all the data for
279      * preview programs/channels and watch next programs belonging to this package in the content
280      * provider will be cleared. Once a package is blocked, {@link SecurityException} will be thrown
281      * for all the requests to preview programs/channels and watch next programs via
282      * {@link android.content.ContentProvider} from it.
283      *
284      * <p>The returned {@link android.os.Bundle} will include all the blocked package names with the
285      * key {@link #EXTRA_BLOCKED_PACKAGES}.
286      *
287      * @see ContentResolver#call(Uri, String, String, Bundle)
288      * @see #EXTRA_BLOCKED_PACKAGES
289      * @see #METHOD_BLOCK_PACKAGE
290      * @see #METHOD_UNBLOCK_PACKAGE
291      * @hide
292      */
293     @SystemApi
294     public static final String METHOD_GET_BLOCKED_PACKAGES = "get_blocked_packages";
295 
296     /**
297      * The method name to block the access from the given package. When a package is blocked, all
298      * the data for preview programs/channels and watch next programs belonging to this package in
299      * the content provider will be cleared. Once a package is blocked, {@link SecurityException}
300      * will be thrown for all the requests to preview programs/channels and watch next programs via
301      * {@link android.content.ContentProvider} from it.
302      *
303      * <p>The method caller must provide the following parameter:
304      * <ul>
305      *     <li>{@code arg}: The package name to be added as blocked package {@link String}.</li>
306      * </ul>
307      *
308      * <p>The returned {@link android.os.Bundle} will include an integer code denoting whether the
309      * execution is successful or not with the key {@link #EXTRA_RESULT_CODE}. If {@code arg} is
310      * empty, the result code will be {@link #RESULT_ERROR_INVALID_ARGUMENT}. If success, the result
311      * code will be {@link #RESULT_OK}. Otherwise, the result code will be {@link #RESULT_ERROR_IO}.
312      *
313      * @see ContentResolver#call(Uri, String, String, Bundle)
314      * @see #EXTRA_RESULT_CODE
315      * @see #METHOD_GET_BLOCKED_PACKAGES
316      * @see #METHOD_UNBLOCK_PACKAGE
317      * @hide
318      */
319     @SystemApi
320     public static final String METHOD_BLOCK_PACKAGE = "block_package";
321 
322     /**
323      * The method name to unblock the access from the given package. When a package is blocked, all
324      * the data for preview programs/channels and watch next programs belonging to this package in
325      * the content provider will be cleared. Once a package is blocked, {@link SecurityException}
326      * will be thrown for all the requests to preview programs/channels and watch next programs via
327      * {@link android.content.ContentProvider} from it.
328      *
329      * <p>The method caller must provide the following parameter:
330      * <ul>
331      *     <li>{@code arg}: The package name to be removed from blocked list as a {@link String}.
332      *     </li>
333      * </ul>
334      *
335      * <p>The returned {@link android.os.Bundle} will include an integer code denoting whether the
336      * execution is successful or not with the key {@link #EXTRA_RESULT_CODE}. If {@code arg} is
337      * empty, the result code will be {@link #RESULT_ERROR_INVALID_ARGUMENT}. If success, the result
338      * code will be {@link #RESULT_OK}. Otherwise, the result code will be {@link #RESULT_ERROR_IO}.
339      *
340      * @see ContentResolver#call(Uri, String, String, Bundle)
341      * @see #EXTRA_RESULT_CODE
342      * @see #METHOD_GET_BLOCKED_PACKAGES
343      * @see #METHOD_BLOCK_PACKAGE
344      * @hide
345      */
346     @SystemApi
347     public static final String METHOD_UNBLOCK_PACKAGE = "unblock_package";
348 
349     /**
350      * The key for a returned {@link Bundle} value containing existing column names in the given
351      * table as an {@link ArrayList} of {@link String}.
352      *
353      * @see #METHOD_GET_COLUMNS
354      * @see #METHOD_ADD_COLUMN
355      * @hide
356      */
357     @SystemApi
358     public static final String EXTRA_EXISTING_COLUMN_NAMES =
359             "android.media.tv.extra.EXISTING_COLUMN_NAMES";
360 
361     /**
362      * The key for a {@link Bundle} parameter containing the new column name to be added in the
363      * given table as a non-empty {@link CharSequence}.
364      *
365      * @see #METHOD_ADD_COLUMN
366      * @hide
367      */
368     @SystemApi
369     public static final String EXTRA_COLUMN_NAME = "android.media.tv.extra.COLUMN_NAME";
370 
371     /**
372      * The key for a {@link Bundle} parameter containing the data type of the new column to be added
373      * in the given table as a non-empty {@link CharSequence}, which should be one of the following
374      * values: {@code "TEXT"}, {@code "INTEGER"}, {@code "REAL"}, or {@code "BLOB"}.
375      *
376      * @see #METHOD_ADD_COLUMN
377      * @hide
378      */
379     @SystemApi
380     public static final String EXTRA_DATA_TYPE = "android.media.tv.extra.DATA_TYPE";
381 
382     /**
383      * The key for a {@link Bundle} parameter containing the default value of the new column to be
384      * added in the given table as a {@link CharSequence}, which represents a valid default value
385      * according to the data type provided with {@link #EXTRA_DATA_TYPE}.
386      *
387      * @see #METHOD_ADD_COLUMN
388      * @hide
389      */
390     @SystemApi
391     public static final String EXTRA_DEFAULT_VALUE = "android.media.tv.extra.DEFAULT_VALUE";
392 
393     /**
394      * The key for a returned {@link Bundle} value containing all the blocked package names as an
395      * {@link ArrayList} of {@link String}.
396      *
397      * @see #METHOD_GET_BLOCKED_PACKAGES
398      * @hide
399      */
400     @SystemApi
401     public static final String EXTRA_BLOCKED_PACKAGES = "android.media.tv.extra.BLOCKED_PACKAGES";
402 
403     /**
404      * An optional query, update or delete URI parameter that allows the caller to specify TV input
405      * ID to filter channels.
406      * @hide
407      */
408     public static final String PARAM_INPUT = "input";
409 
410     /**
411      * An optional query, update or delete URI parameter that allows the caller to specify channel
412      * ID to filter programs.
413      * @hide
414      */
415     public static final String PARAM_CHANNEL = "channel";
416 
417     /**
418      * An optional query, update or delete URI parameter that allows the caller to specify start
419      * time (in milliseconds since the epoch) to filter programs.
420      * @hide
421      */
422     public static final String PARAM_START_TIME = "start_time";
423 
424     /**
425      * An optional query, update or delete URI parameter that allows the caller to specify end time
426      * (in milliseconds since the epoch) to filter programs.
427      * @hide
428      */
429     public static final String PARAM_END_TIME = "end_time";
430 
431     /**
432      * A query, update or delete URI parameter that allows the caller to operate on all or
433      * browsable-only channels. If set to "true", the rows that contain non-browsable channels are
434      * not affected.
435      * @hide
436      */
437     public static final String PARAM_BROWSABLE_ONLY = "browsable_only";
438 
439     /**
440      * An optional query, update or delete URI parameter that allows the caller to specify canonical
441      * genre to filter programs.
442      * @hide
443      */
444     public static final String PARAM_CANONICAL_GENRE = "canonical_genre";
445 
446     /**
447      * A query, update or delete URI parameter that allows the caller to operate only on preview or
448      * non-preview channels. If set to "true", the operation affects the rows for preview channels
449      * only. If set to "false", the operation affects the rows for non-preview channels only.
450      * @hide
451      */
452     public static final String PARAM_PREVIEW = "preview";
453 
454     /**
455      * An optional query, update or delete URI parameter that allows the caller to specify package
456      * name to filter channels.
457      * @hide
458      */
459     public static final String PARAM_PACKAGE = "package";
460 
461     /**
462      * Builds an ID that uniquely identifies a TV input service.
463      *
464      * @param name The {@link ComponentName} of the TV input service to build ID for.
465      * @return the ID for the given TV input service.
466      */
buildInputId(ComponentName name)467     public static String buildInputId(ComponentName name) {
468         return name.flattenToShortString();
469     }
470 
471     /**
472      * Builds a URI that points to a specific channel.
473      *
474      * @param channelId The ID of the channel to point to.
475      */
buildChannelUri(long channelId)476     public static Uri buildChannelUri(long channelId) {
477         return ContentUris.withAppendedId(Channels.CONTENT_URI, channelId);
478     }
479 
480     /**
481      * Build a special channel URI intended to be used with pass-through inputs. (e.g. HDMI)
482      *
483      * @param inputId The ID of the pass-through input to build a channels URI for.
484      * @see TvInputInfo#isPassthroughInput()
485      */
buildChannelUriForPassthroughInput(String inputId)486     public static Uri buildChannelUriForPassthroughInput(String inputId) {
487         return new Uri.Builder().scheme(ContentResolver.SCHEME_CONTENT).authority(AUTHORITY)
488                 .appendPath(PATH_PASSTHROUGH).appendPath(inputId).build();
489     }
490 
491     /**
492      * Builds a URI that points to a channel logo. See {@link Channels.Logo}.
493      *
494      * @param channelId The ID of the channel whose logo is pointed to.
495      */
buildChannelLogoUri(long channelId)496     public static Uri buildChannelLogoUri(long channelId) {
497         return buildChannelLogoUri(buildChannelUri(channelId));
498     }
499 
500     /**
501      * Builds a URI that points to a channel logo. See {@link Channels.Logo}.
502      *
503      * @param channelUri The URI of the channel whose logo is pointed to.
504      */
buildChannelLogoUri(Uri channelUri)505     public static Uri buildChannelLogoUri(Uri channelUri) {
506         if (!isChannelUriForTunerInput(channelUri)) {
507             throw new IllegalArgumentException("Not a channel: " + channelUri);
508         }
509         return Uri.withAppendedPath(channelUri, Channels.Logo.CONTENT_DIRECTORY);
510     }
511 
512     /**
513      * Builds a URI that points to all channels from a given TV input.
514      *
515      * @param inputId The ID of the TV input to build a channels URI for. If {@code null}, builds a
516      *            URI for all the TV inputs.
517      */
buildChannelsUriForInput(@ullable String inputId)518     public static Uri buildChannelsUriForInput(@Nullable String inputId) {
519         return buildChannelsUriForInput(inputId, false);
520     }
521 
522     /**
523      * Builds a URI that points to all or browsable-only channels from a given TV input.
524      *
525      * @param inputId The ID of the TV input to build a channels URI for. If {@code null}, builds a
526      *            URI for all the TV inputs.
527      * @param browsableOnly If set to {@code true} the URI points to only browsable channels. If set
528      *            to {@code false} the URI points to all channels regardless of whether they are
529      *            browsable or not.
530      * @hide
531      */
532     @SystemApi
buildChannelsUriForInput(@ullable String inputId, boolean browsableOnly)533     public static Uri buildChannelsUriForInput(@Nullable String inputId,
534             boolean browsableOnly) {
535         Uri.Builder builder = Channels.CONTENT_URI.buildUpon();
536         if (inputId != null) {
537             builder.appendQueryParameter(PARAM_INPUT, inputId);
538         }
539         return builder.appendQueryParameter(PARAM_BROWSABLE_ONLY, String.valueOf(browsableOnly))
540                 .build();
541     }
542 
543     /**
544      * Builds a URI that points to all or browsable-only channels which have programs with the given
545      * genre from the given TV input.
546      *
547      * @param inputId The ID of the TV input to build a channels URI for. If {@code null}, builds a
548      *            URI for all the TV inputs.
549      * @param genre {@link Programs.Genres} to search. If {@code null}, builds a URI for all genres.
550      * @param browsableOnly If set to {@code true} the URI points to only browsable channels. If set
551      *            to {@code false} the URI points to all channels regardless of whether they are
552      *            browsable or not.
553      * @hide
554      */
555     @SystemApi
buildChannelsUriForInput(@ullable String inputId, @Nullable String genre, boolean browsableOnly)556     public static Uri buildChannelsUriForInput(@Nullable String inputId,
557             @Nullable String genre, boolean browsableOnly) {
558         if (genre == null) {
559             return buildChannelsUriForInput(inputId, browsableOnly);
560         }
561         if (!Programs.Genres.isCanonical(genre)) {
562             throw new IllegalArgumentException("Not a canonical genre: '" + genre + "'");
563         }
564         return buildChannelsUriForInput(inputId, browsableOnly).buildUpon()
565                 .appendQueryParameter(PARAM_CANONICAL_GENRE, genre).build();
566     }
567 
568     /**
569      * Builds a URI that points to a specific program.
570      *
571      * @param programId The ID of the program to point to.
572      */
buildProgramUri(long programId)573     public static Uri buildProgramUri(long programId) {
574         return ContentUris.withAppendedId(Programs.CONTENT_URI, programId);
575     }
576 
577     /**
578      * Builds a URI that points to all programs on a given channel.
579      *
580      * @param channelId The ID of the channel to return programs for.
581      */
buildProgramsUriForChannel(long channelId)582     public static Uri buildProgramsUriForChannel(long channelId) {
583         return Programs.CONTENT_URI.buildUpon()
584                 .appendQueryParameter(PARAM_CHANNEL, String.valueOf(channelId)).build();
585     }
586 
587     /**
588      * Builds a URI that points to all programs on a given channel.
589      *
590      * @param channelUri The URI of the channel to return programs for.
591      */
buildProgramsUriForChannel(Uri channelUri)592     public static Uri buildProgramsUriForChannel(Uri channelUri) {
593         if (!isChannelUriForTunerInput(channelUri)) {
594             throw new IllegalArgumentException("Not a channel: " + channelUri);
595         }
596         return buildProgramsUriForChannel(ContentUris.parseId(channelUri));
597     }
598 
599     /**
600      * Builds a URI that points to programs on a specific channel whose schedules overlap with the
601      * given time frame.
602      *
603      * @param channelId The ID of the channel to return programs for.
604      * @param startTime The start time used to filter programs. The returned programs will have a
605      *            {@link Programs#COLUMN_END_TIME_UTC_MILLIS} that is greater than or equal to
606                   {@code startTime}.
607      * @param endTime The end time used to filter programs. The returned programs will have
608      *            {@link Programs#COLUMN_START_TIME_UTC_MILLIS} that is less than or equal to
609      *            {@code endTime}.
610      */
buildProgramsUriForChannel(long channelId, long startTime, long endTime)611     public static Uri buildProgramsUriForChannel(long channelId, long startTime,
612             long endTime) {
613         Uri uri = buildProgramsUriForChannel(channelId);
614         return uri.buildUpon().appendQueryParameter(PARAM_START_TIME, String.valueOf(startTime))
615                 .appendQueryParameter(PARAM_END_TIME, String.valueOf(endTime)).build();
616     }
617 
618     /**
619      * Builds a URI that points to programs on a specific channel whose schedules overlap with the
620      * given time frame.
621      *
622      * @param channelUri The URI of the channel to return programs for.
623      * @param startTime The start time used to filter programs. The returned programs should have
624      *            {@link Programs#COLUMN_END_TIME_UTC_MILLIS} that is greater than this time.
625      * @param endTime The end time used to filter programs. The returned programs should have
626      *            {@link Programs#COLUMN_START_TIME_UTC_MILLIS} that is less than this time.
627      */
buildProgramsUriForChannel(Uri channelUri, long startTime, long endTime)628     public static Uri buildProgramsUriForChannel(Uri channelUri, long startTime,
629             long endTime) {
630         if (!isChannelUriForTunerInput(channelUri)) {
631             throw new IllegalArgumentException("Not a channel: " + channelUri);
632         }
633         return buildProgramsUriForChannel(ContentUris.parseId(channelUri), startTime, endTime);
634     }
635 
636     /**
637      * Builds a URI that points to a specific recorded program.
638      *
639      * @param recordedProgramId The ID of the recorded program to point to.
640      */
buildRecordedProgramUri(long recordedProgramId)641     public static Uri buildRecordedProgramUri(long recordedProgramId) {
642         return ContentUris.withAppendedId(RecordedPrograms.CONTENT_URI, recordedProgramId);
643     }
644 
645     /**
646      * Builds a URI that points to a specific preview program.
647      *
648      * @param previewProgramId The ID of the preview program to point to.
649      */
buildPreviewProgramUri(long previewProgramId)650     public static Uri buildPreviewProgramUri(long previewProgramId) {
651         return ContentUris.withAppendedId(PreviewPrograms.CONTENT_URI, previewProgramId);
652     }
653 
654     /**
655      * Builds a URI that points to all preview programs on a given channel.
656      *
657      * @param channelId The ID of the channel to return preview programs for.
658      */
buildPreviewProgramsUriForChannel(long channelId)659     public static Uri buildPreviewProgramsUriForChannel(long channelId) {
660         return PreviewPrograms.CONTENT_URI.buildUpon()
661                 .appendQueryParameter(PARAM_CHANNEL, String.valueOf(channelId)).build();
662     }
663 
664     /**
665      * Builds a URI that points to all preview programs on a given channel.
666      *
667      * @param channelUri The URI of the channel to return preview programs for.
668      */
buildPreviewProgramsUriForChannel(Uri channelUri)669     public static Uri buildPreviewProgramsUriForChannel(Uri channelUri) {
670         if (!isChannelUriForTunerInput(channelUri)) {
671             throw new IllegalArgumentException("Not a channel: " + channelUri);
672         }
673         return buildPreviewProgramsUriForChannel(ContentUris.parseId(channelUri));
674     }
675 
676     /**
677      * Builds a URI that points to a specific watch next program.
678      *
679      * @param watchNextProgramId The ID of the watch next program to point to.
680      */
buildWatchNextProgramUri(long watchNextProgramId)681     public static Uri buildWatchNextProgramUri(long watchNextProgramId) {
682         return ContentUris.withAppendedId(WatchNextPrograms.CONTENT_URI, watchNextProgramId);
683     }
684 
685     /**
686      * Builds a URI that points to a specific program the user watched.
687      *
688      * @param watchedProgramId The ID of the watched program to point to.
689      * @hide
690      */
buildWatchedProgramUri(long watchedProgramId)691     public static Uri buildWatchedProgramUri(long watchedProgramId) {
692         return ContentUris.withAppendedId(WatchedPrograms.CONTENT_URI, watchedProgramId);
693     }
694 
isTvUri(Uri uri)695     private static boolean isTvUri(Uri uri) {
696         return uri != null && ContentResolver.SCHEME_CONTENT.equals(uri.getScheme())
697                 && AUTHORITY.equals(uri.getAuthority());
698     }
699 
isTwoSegmentUriStartingWith(Uri uri, String pathSegment)700     private static boolean isTwoSegmentUriStartingWith(Uri uri, String pathSegment) {
701         List<String> pathSegments = uri.getPathSegments();
702         return pathSegments.size() == 2 && pathSegment.equals(pathSegments.get(0));
703     }
704 
705     /**
706      * @return {@code true} if {@code uri} is a channel URI.
707      */
isChannelUri(@onNull Uri uri)708     public static boolean isChannelUri(@NonNull Uri uri) {
709         return isChannelUriForTunerInput(uri) || isChannelUriForPassthroughInput(uri);
710     }
711 
712     /**
713      * @return {@code true} if {@code uri} is a channel URI for a tuner input.
714      */
isChannelUriForTunerInput(@onNull Uri uri)715     public static boolean isChannelUriForTunerInput(@NonNull Uri uri) {
716         return isTvUri(uri) && isTwoSegmentUriStartingWith(uri, PATH_CHANNEL);
717     }
718 
719     /**
720      * @return {@code true} if {@code uri} is a channel URI for a pass-through input.
721      */
isChannelUriForPassthroughInput(@onNull Uri uri)722     public static boolean isChannelUriForPassthroughInput(@NonNull Uri uri) {
723         return isTvUri(uri) && isTwoSegmentUriStartingWith(uri, PATH_PASSTHROUGH);
724     }
725 
726     /**
727      * @return {@code true} if {@code uri} is a program URI.
728      */
isProgramUri(@onNull Uri uri)729     public static boolean isProgramUri(@NonNull Uri uri) {
730         return isTvUri(uri) && isTwoSegmentUriStartingWith(uri, PATH_PROGRAM);
731     }
732 
733     /**
734      * @return {@code true} if {@code uri} is a recorded program URI.
735      */
isRecordedProgramUri(@onNull Uri uri)736     public static boolean isRecordedProgramUri(@NonNull Uri uri) {
737         return isTvUri(uri) && isTwoSegmentUriStartingWith(uri, PATH_RECORDED_PROGRAM);
738     }
739 
740     /**
741      * Requests to make a channel browsable.
742      *
743      * <p>Once called, the system will review the request and make the channel browsable based on
744      * its policy. The first request from a package is guaranteed to be approved. This is only
745      * relevant to channels with {@link Channels#TYPE_PREVIEW} type.
746      *
747      * @param context The context for accessing content provider.
748      * @param channelId The channel ID to be browsable.
749      * @see Channels#COLUMN_BROWSABLE
750      */
requestChannelBrowsable(Context context, long channelId)751     public static void requestChannelBrowsable(Context context, long channelId) {
752         TvInputManager manager = (TvInputManager) context.getSystemService(
753             Context.TV_INPUT_SERVICE);
754         if (manager != null) {
755             manager.requestChannelBrowsable(buildChannelUri(channelId));
756         }
757     }
758 
TvContract()759     private TvContract() {}
760 
761     /**
762      * Common base for the tables of TV channels/programs.
763      */
764     public interface BaseTvColumns extends BaseColumns {
765         /**
766          * The name of the package that owns the current row.
767          *
768          * <p>The TV provider fills in this column with the name of the package that provides the
769          * initial data of the row. If the package is later uninstalled, the rows it owns are
770          * automatically removed from the tables.
771          *
772          * <p>Type: TEXT
773          */
774         String COLUMN_PACKAGE_NAME = "package_name";
775     }
776 
777     /**
778      * Common columns for the tables of TV programs.
779      * @hide
780      */
781     interface ProgramColumns {
782         /** @hide */
783         @IntDef({
784                 REVIEW_RATING_STYLE_STARS,
785                 REVIEW_RATING_STYLE_THUMBS_UP_DOWN,
786                 REVIEW_RATING_STYLE_PERCENTAGE,
787         })
788         @Retention(RetentionPolicy.SOURCE)
789         @interface ReviewRatingStyle {}
790 
791         /**
792          * The review rating style for five star rating.
793          *
794          * @see #COLUMN_REVIEW_RATING_STYLE
795          */
796         int REVIEW_RATING_STYLE_STARS = 0;
797 
798         /**
799          * The review rating style for thumbs-up and thumbs-down rating.
800          *
801          * @see #COLUMN_REVIEW_RATING_STYLE
802          */
803         int REVIEW_RATING_STYLE_THUMBS_UP_DOWN = 1;
804 
805         /**
806          * The review rating style for 0 to 100 point system.
807          *
808          * @see #COLUMN_REVIEW_RATING_STYLE
809          */
810         int REVIEW_RATING_STYLE_PERCENTAGE = 2;
811 
812         /**
813          * The title of this TV program.
814          *
815          * <p>If this program is an episodic TV show, it is recommended that the title is the series
816          * title and its related fields ({@link #COLUMN_SEASON_TITLE} and/or
817          * {@link #COLUMN_SEASON_DISPLAY_NUMBER}, {@link #COLUMN_SEASON_DISPLAY_NUMBER},
818          * {@link #COLUMN_EPISODE_DISPLAY_NUMBER}, and {@link #COLUMN_EPISODE_TITLE}) are filled in.
819          *
820          * <p>Type: TEXT
821          */
822         String COLUMN_TITLE = "title";
823 
824         /**
825          * The season display number of this TV program for episodic TV shows.
826          *
827          * <p>This is used to indicate the season number. (e.g. 1, 2 or 3) Note that the value
828          * does not necessarily be numeric. (e.g. 12B)
829          *
830          * <p>Can be empty.
831          *
832          * <p>Type: TEXT
833          */
834         String COLUMN_SEASON_DISPLAY_NUMBER = "season_display_number";
835 
836         /**
837          * The title of the season for this TV program for episodic TV shows.
838          *
839          * <p>This is an optional field supplied only when the season has a special title
840          * (e.g. The Final Season). If provided, the applications should display it instead of
841          * {@link #COLUMN_SEASON_DISPLAY_NUMBER}, and should display it without alterations.
842          * (e.g. for "The Final Season", displayed string should be "The Final Season", not
843          * "Season The Final Season"). When displaying multiple programs, the order should be based
844          * on {@link #COLUMN_SEASON_DISPLAY_NUMBER}, even when {@link #COLUMN_SEASON_TITLE} exists.
845          *
846          * <p>Can be empty.
847          *
848          * <p>Type: TEXT
849          */
850         String COLUMN_SEASON_TITLE = "season_title";
851 
852         /**
853          * The episode display number of this TV program for episodic TV shows.
854          *
855          * <p>This is used to indicate the episode number. (e.g. 1, 2 or 3) Note that the value
856          * does not necessarily be numeric. (e.g. 12B)
857          *
858          * <p>Can be empty.
859          *
860          * <p>Type: TEXT
861          */
862         String COLUMN_EPISODE_DISPLAY_NUMBER = "episode_display_number";
863 
864         /**
865          * The episode title of this TV program for episodic TV shows.
866          *
867          * <p>Can be empty.
868          *
869          * <p>Type: TEXT
870          */
871         String COLUMN_EPISODE_TITLE = "episode_title";
872 
873         /**
874          * The comma-separated canonical genre string of this TV program.
875          *
876          * <p>Canonical genres are defined in {@link Genres}. Use {@link Genres#encode} to create a
877          * text that can be stored in this column. Use {@link Genres#decode} to get the canonical
878          * genre strings from the text stored in the column.
879          *
880          * <p>Type: TEXT
881          * @see Genres
882          * @see Genres#encode
883          * @see Genres#decode
884          */
885         String COLUMN_CANONICAL_GENRE = "canonical_genre";
886 
887         /**
888          * The short description of this TV program that is displayed to the user by default.
889          *
890          * <p>It is recommended to limit the length of the descriptions to 256 characters.
891          *
892          * <p>Type: TEXT
893          */
894         String COLUMN_SHORT_DESCRIPTION = "short_description";
895 
896         /**
897          * The detailed, lengthy description of this TV program that is displayed only when the user
898          * wants to see more information.
899          *
900          * <p>TV input services should leave this field empty if they have no additional details
901          * beyond {@link #COLUMN_SHORT_DESCRIPTION}.
902          *
903          * <p>Type: TEXT
904          */
905         String COLUMN_LONG_DESCRIPTION = "long_description";
906 
907         /**
908          * The width of the video for this TV program, in the unit of pixels.
909          *
910          * <p>Together with {@link #COLUMN_VIDEO_HEIGHT} this is used to determine the video
911          * resolution of the current TV program. Can be empty if it is not known initially or the
912          * program does not convey any video such as the programs from type
913          * {@link Channels#SERVICE_TYPE_AUDIO} channels.
914          *
915          * <p>Type: INTEGER
916          */
917         String COLUMN_VIDEO_WIDTH = "video_width";
918 
919         /**
920          * The height of the video for this TV program, in the unit of pixels.
921          *
922          * <p>Together with {@link #COLUMN_VIDEO_WIDTH} this is used to determine the video
923          * resolution of the current TV program. Can be empty if it is not known initially or the
924          * program does not convey any video such as the programs from type
925          * {@link Channels#SERVICE_TYPE_AUDIO} channels.
926          *
927          * <p>Type: INTEGER
928          */
929         String COLUMN_VIDEO_HEIGHT = "video_height";
930 
931         /**
932          * The comma-separated audio languages of this TV program.
933          *
934          * <p>This is used to describe available audio languages included in the program. Use either
935          * ISO 639-1 or 639-2/T codes.
936          *
937          * <p>Type: TEXT
938          */
939         String COLUMN_AUDIO_LANGUAGE = "audio_language";
940 
941         /**
942          * The comma-separated content ratings of this TV program.
943          *
944          * <p>This is used to describe the content rating(s) of this program. Each comma-separated
945          * content rating sub-string should be generated by calling
946          * {@link TvContentRating#flattenToString}. Note that in most cases the program content is
947          * rated by a single rating system, thus resulting in a corresponding single sub-string that
948          * does not require comma separation and multiple sub-strings appear only when the program
949          * content is rated by two or more content rating systems. If any of those ratings is
950          * specified as "blocked rating" in the user's parental control settings, the TV input
951          * service should block the current content and wait for the signal that it is okay to
952          * unblock.
953          *
954          * <p>Type: TEXT
955          */
956         String COLUMN_CONTENT_RATING = "content_rating";
957 
958         /**
959          * The URI for the poster art of this TV program.
960          *
961          * <p>The data in the column must be a URL, or a URI in one of the following formats:
962          *
963          * <ul>
964          * <li>content ({@link android.content.ContentResolver#SCHEME_CONTENT})</li>
965          * <li>android.resource ({@link android.content.ContentResolver#SCHEME_ANDROID_RESOURCE})
966          * </li>
967          * <li>file ({@link android.content.ContentResolver#SCHEME_FILE})</li>
968          * </ul>
969          *
970          * <p>Can be empty.
971          *
972          * <p>Type: TEXT
973          */
974         String COLUMN_POSTER_ART_URI = "poster_art_uri";
975 
976         /**
977          * The URI for the thumbnail of this TV program.
978          *
979          * <p>The system can generate a thumbnail from the poster art if this column is not
980          * specified. Thus it is not necessary for TV input services to include a thumbnail if it is
981          * just a scaled image of the poster art.
982          *
983          * <p>The data in the column must be a URL, or a URI in one of the following formats:
984          *
985          * <ul>
986          * <li>content ({@link android.content.ContentResolver#SCHEME_CONTENT})</li>
987          * <li>android.resource ({@link android.content.ContentResolver#SCHEME_ANDROID_RESOURCE})
988          * </li>
989          * <li>file ({@link android.content.ContentResolver#SCHEME_FILE})</li>
990          * </ul>
991          *
992          * <p>Can be empty.
993          *
994          * <p>Type: TEXT
995          */
996         String COLUMN_THUMBNAIL_URI = "thumbnail_uri";
997 
998         /**
999          * The flag indicating whether this TV program is searchable or not.
1000          *
1001          * <p>The columns of searchable programs can be read by other applications that have proper
1002          * permission. Care must be taken not to open sensitive data.
1003          *
1004          * <p>A value of 1 indicates that the program is searchable and its columns can be read by
1005          * other applications, a value of 0 indicates that the program is hidden and its columns can
1006          * be read only by the package that owns the program and the system. If not specified, this
1007          * value is set to 1 (searchable) by default.
1008          *
1009          * <p>Type: INTEGER (boolean)
1010          */
1011         String COLUMN_SEARCHABLE = "searchable";
1012 
1013         /**
1014          * Internal data used by individual TV input services.
1015          *
1016          * <p>This is internal to the provider that inserted it, and should not be decoded by other
1017          * apps.
1018          *
1019          * <p>Type: BLOB
1020          */
1021         String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
1022 
1023         /**
1024          * Internal integer flag used by individual TV input services.
1025          *
1026          * <p>This is internal to the provider that inserted it, and should not be decoded by other
1027          * apps.
1028          *
1029          * <p>Type: INTEGER
1030          */
1031         String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
1032 
1033         /**
1034          * Internal integer flag used by individual TV input services.
1035          *
1036          * <p>This is internal to the provider that inserted it, and should not be decoded by other
1037          * apps.
1038          *
1039          * <p>Type: INTEGER
1040          */
1041         String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
1042 
1043         /**
1044          * Internal integer flag used by individual TV input services.
1045          *
1046          * <p>This is internal to the provider that inserted it, and should not be decoded by other
1047          * apps.
1048          *
1049          * <p>Type: INTEGER
1050          */
1051         String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
1052 
1053         /**
1054          * Internal integer flag used by individual TV input services.
1055          *
1056          * <p>This is internal to the provider that inserted it, and should not be decoded by other
1057          * apps.
1058          *
1059          * <p>Type: INTEGER
1060          */
1061         String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
1062 
1063         /**
1064          * The version number of this row entry used by TV input services.
1065          *
1066          * <p>This is best used by sync adapters to identify the rows to update. The number can be
1067          * defined by individual TV input services. One may assign the same value as
1068          * {@code version_number} in ETSI EN 300 468 or ATSC A/65, if the data are coming from a TV
1069          * broadcast.
1070          *
1071          * <p>Type: INTEGER
1072          */
1073         String COLUMN_VERSION_NUMBER = "version_number";
1074 
1075         /**
1076          * The review rating score style used for {@link #COLUMN_REVIEW_RATING}.
1077          *
1078          * <p> The value should match one of the followings: {@link #REVIEW_RATING_STYLE_STARS},
1079          * {@link #REVIEW_RATING_STYLE_THUMBS_UP_DOWN}, and {@link #REVIEW_RATING_STYLE_PERCENTAGE}.
1080          *
1081          * <p>Type: INTEGER
1082          * @see #COLUMN_REVIEW_RATING
1083          */
1084         String COLUMN_REVIEW_RATING_STYLE = "review_rating_style";
1085 
1086         /**
1087          * The review rating score for this program.
1088          *
1089          * <p>The format of the value is dependent on {@link #COLUMN_REVIEW_RATING_STYLE}. If the
1090          * style is {@link #REVIEW_RATING_STYLE_STARS}, the value should be a real number between
1091          * 0.0 and 5.0. (e.g. "4.5") If the style is {@link #REVIEW_RATING_STYLE_THUMBS_UP_DOWN},
1092          * the value should be two integers, one for thumbs-up count and the other for thumbs-down
1093          * count, with a comma between them. (e.g. "200,40") If the style is
1094          * {@link #REVIEW_RATING_STYLE_PERCENTAGE}, the value shoule be a real number between 0 and
1095          * 100. (e.g. "99.9")
1096          *
1097          * <p>Type: TEXT
1098          * @see #COLUMN_REVIEW_RATING_STYLE
1099          */
1100         String COLUMN_REVIEW_RATING = "review_rating";
1101     }
1102 
1103     /**
1104      * Common columns for the tables of preview programs.
1105      * @hide
1106      */
1107     interface PreviewProgramColumns {
1108 
1109         /** @hide */
1110         @IntDef({
1111                 TYPE_MOVIE,
1112                 TYPE_TV_SERIES,
1113                 TYPE_TV_SEASON,
1114                 TYPE_TV_EPISODE,
1115                 TYPE_CLIP,
1116                 TYPE_EVENT,
1117                 TYPE_CHANNEL,
1118                 TYPE_TRACK,
1119                 TYPE_ALBUM,
1120                 TYPE_ARTIST,
1121                 TYPE_PLAYLIST,
1122                 TYPE_STATION,
1123         })
1124         @Retention(RetentionPolicy.SOURCE)
1125         public @interface Type {}
1126 
1127         /**
1128          * The program type for movie.
1129          *
1130          * @see #COLUMN_TYPE
1131          */
1132         int TYPE_MOVIE = 0;
1133 
1134         /**
1135          * The program type for TV series.
1136          *
1137          * @see #COLUMN_TYPE
1138          */
1139         int TYPE_TV_SERIES = 1;
1140 
1141         /**
1142          * The program type for TV season.
1143          *
1144          * @see #COLUMN_TYPE
1145          */
1146         int TYPE_TV_SEASON = 2;
1147 
1148         /**
1149          * The program type for TV episode.
1150          *
1151          * @see #COLUMN_TYPE
1152          */
1153         int TYPE_TV_EPISODE = 3;
1154 
1155         /**
1156          * The program type for clip.
1157          *
1158          * @see #COLUMN_TYPE
1159          */
1160         int TYPE_CLIP = 4;
1161 
1162         /**
1163          * The program type for event.
1164          *
1165          * @see #COLUMN_TYPE
1166          */
1167         int TYPE_EVENT = 5;
1168 
1169         /**
1170          * The program type for channel.
1171          *
1172          * @see #COLUMN_TYPE
1173          */
1174         int TYPE_CHANNEL = 6;
1175 
1176         /**
1177          * The program type for track.
1178          *
1179          * @see #COLUMN_TYPE
1180          */
1181         int TYPE_TRACK = 7;
1182 
1183         /**
1184          * The program type for album.
1185          *
1186          * @see #COLUMN_TYPE
1187          */
1188         int TYPE_ALBUM = 8;
1189 
1190         /**
1191          * The program type for artist.
1192          *
1193          * @see #COLUMN_TYPE
1194          */
1195         int TYPE_ARTIST = 9;
1196 
1197         /**
1198          * The program type for playlist.
1199          *
1200          * @see #COLUMN_TYPE
1201          */
1202         int TYPE_PLAYLIST = 10;
1203 
1204         /**
1205          * The program type for station.
1206          *
1207          * @see #COLUMN_TYPE
1208          */
1209         int TYPE_STATION = 11;
1210 
1211         /** @hide */
1212         @IntDef({
1213                 ASPECT_RATIO_16_9,
1214                 ASPECT_RATIO_3_2,
1215                 ASPECT_RATIO_1_1,
1216                 ASPECT_RATIO_2_3,
1217                 ASPECT_RATIO_4_3,
1218         })
1219         @Retention(RetentionPolicy.SOURCE)
1220         public @interface AspectRatio {}
1221 
1222         /**
1223          * The aspect ratio for 16:9.
1224          *
1225          * @see #COLUMN_POSTER_ART_ASPECT_RATIO
1226          * @see #COLUMN_THUMBNAIL_ASPECT_RATIO
1227          */
1228         int ASPECT_RATIO_16_9 = 0;
1229 
1230         /**
1231          * The aspect ratio for 3:2.
1232          *
1233          * @see #COLUMN_POSTER_ART_ASPECT_RATIO
1234          * @see #COLUMN_THUMBNAIL_ASPECT_RATIO
1235          */
1236         int ASPECT_RATIO_3_2 = 1;
1237 
1238         /**
1239          * The aspect ratio for 4:3.
1240          *
1241          * @see #COLUMN_POSTER_ART_ASPECT_RATIO
1242          * @see #COLUMN_THUMBNAIL_ASPECT_RATIO
1243          */
1244         int ASPECT_RATIO_4_3 = 2;
1245 
1246         /**
1247          * The aspect ratio for 1:1.
1248          *
1249          * @see #COLUMN_POSTER_ART_ASPECT_RATIO
1250          * @see #COLUMN_THUMBNAIL_ASPECT_RATIO
1251          */
1252         int ASPECT_RATIO_1_1 = 3;
1253 
1254         /**
1255          * The aspect ratio for 2:3.
1256          *
1257          * @see #COLUMN_POSTER_ART_ASPECT_RATIO
1258          * @see #COLUMN_THUMBNAIL_ASPECT_RATIO
1259          */
1260         int ASPECT_RATIO_2_3 = 4;
1261 
1262         /** @hide */
1263         @IntDef({
1264                 AVAILABILITY_AVAILABLE,
1265                 AVAILABILITY_FREE_WITH_SUBSCRIPTION,
1266                 AVAILABILITY_PAID_CONTENT,
1267         })
1268         @Retention(RetentionPolicy.SOURCE)
1269         public @interface Availability {}
1270 
1271         /**
1272          * The availability for "available to this user".
1273          *
1274          * @see #COLUMN_AVAILABILITY
1275          */
1276         int AVAILABILITY_AVAILABLE = 0;
1277 
1278         /**
1279          * The availability for "free with subscription".
1280          *
1281          * @see #COLUMN_AVAILABILITY
1282          */
1283         int AVAILABILITY_FREE_WITH_SUBSCRIPTION = 1;
1284 
1285         /**
1286          * The availability for "paid content, either to-own or rental
1287          * (user has not purchased/rented).
1288          *
1289          * @see #COLUMN_AVAILABILITY
1290          */
1291         int AVAILABILITY_PAID_CONTENT = 2;
1292 
1293         /** @hide */
1294         @IntDef({
1295                 INTERACTION_TYPE_VIEWS,
1296                 INTERACTION_TYPE_LISTENS,
1297                 INTERACTION_TYPE_FOLLOWERS,
1298                 INTERACTION_TYPE_FANS,
1299                 INTERACTION_TYPE_LIKES,
1300                 INTERACTION_TYPE_THUMBS,
1301                 INTERACTION_TYPE_VIEWERS,
1302         })
1303         @Retention(RetentionPolicy.SOURCE)
1304         public @interface InteractionType {}
1305 
1306         /**
1307          * The interaction type for "views".
1308          *
1309          * @see #COLUMN_INTERACTION_TYPE
1310          */
1311         int INTERACTION_TYPE_VIEWS = 0;
1312 
1313         /**
1314          * The interaction type for "listens".
1315          *
1316          * @see #COLUMN_INTERACTION_TYPE
1317          */
1318         int INTERACTION_TYPE_LISTENS = 1;
1319 
1320         /**
1321          * The interaction type for "followers".
1322          *
1323          * @see #COLUMN_INTERACTION_TYPE
1324          */
1325         int INTERACTION_TYPE_FOLLOWERS = 2;
1326 
1327         /**
1328          * The interaction type for "fans".
1329          *
1330          * @see #COLUMN_INTERACTION_TYPE
1331          */
1332         int INTERACTION_TYPE_FANS = 3;
1333 
1334         /**
1335          * The interaction type for "likes".
1336          *
1337          * @see #COLUMN_INTERACTION_TYPE
1338          */
1339         int INTERACTION_TYPE_LIKES = 4;
1340 
1341         /**
1342          * The interaction type for "thumbs".
1343          *
1344          * @see #COLUMN_INTERACTION_TYPE
1345          */
1346         int INTERACTION_TYPE_THUMBS = 5;
1347 
1348         /**
1349          * The interaction type for "viewers".
1350          *
1351          * @see #COLUMN_INTERACTION_TYPE
1352          */
1353         int INTERACTION_TYPE_VIEWERS = 6;
1354 
1355         /**
1356          * The type of this program content.
1357          *
1358          * <p>The value should match one of the followings:
1359          * {@link #TYPE_MOVIE},
1360          * {@link #TYPE_TV_SERIES},
1361          * {@link #TYPE_TV_SEASON},
1362          * {@link #TYPE_TV_EPISODE},
1363          * {@link #TYPE_CLIP},
1364          * {@link #TYPE_EVENT},
1365          * {@link #TYPE_CHANNEL},
1366          * {@link #TYPE_TRACK},
1367          * {@link #TYPE_ALBUM},
1368          * {@link #TYPE_ARTIST},
1369          * {@link #TYPE_PLAYLIST}, and
1370          * {@link #TYPE_STATION}.
1371          *
1372          * <p>This is a required field if the program is from a {@link Channels#TYPE_PREVIEW}
1373          * channel.
1374          *
1375          * <p>Type: INTEGER
1376          */
1377         String COLUMN_TYPE = "type";
1378 
1379         /**
1380          * The aspect ratio of the poster art for this TV program.
1381          *
1382          * <p>The value should match one of the followings:
1383          * {@link #ASPECT_RATIO_16_9},
1384          * {@link #ASPECT_RATIO_3_2},
1385          * {@link #ASPECT_RATIO_4_3},
1386          * {@link #ASPECT_RATIO_1_1}, and
1387          * {@link #ASPECT_RATIO_2_3}.
1388          *
1389          * <p>Type: INTEGER
1390          */
1391         String COLUMN_POSTER_ART_ASPECT_RATIO = "poster_art_aspect_ratio";
1392 
1393         /**
1394          * The aspect ratio of the thumbnail for this TV program.
1395          *
1396          * <p>The value should match one of the followings:
1397          * {@link #ASPECT_RATIO_16_9},
1398          * {@link #ASPECT_RATIO_3_2},
1399          * {@link #ASPECT_RATIO_4_3},
1400          * {@link #ASPECT_RATIO_1_1}, and
1401          * {@link #ASPECT_RATIO_2_3}.
1402          *
1403          * <p>Type: INTEGER
1404          */
1405         String COLUMN_THUMBNAIL_ASPECT_RATIO = "poster_thumbnail_aspect_ratio";
1406 
1407         /**
1408          * The URI for the logo of this TV program.
1409          *
1410          * <p>This is a small badge shown on top of the poster art or thumbnail representing the
1411          * source of the content.
1412          *
1413          * <p>The data in the column must be a URL, or a URI in one of the following formats:
1414          *
1415          * <ul>
1416          * <li>content ({@link android.content.ContentResolver#SCHEME_CONTENT})</li>
1417          * <li>android.resource ({@link android.content.ContentResolver#SCHEME_ANDROID_RESOURCE})
1418          * </li>
1419          * <li>file ({@link android.content.ContentResolver#SCHEME_FILE})</li>
1420          * </ul>
1421          *
1422          * <p>Can be empty.
1423          *
1424          * <p>Type: TEXT
1425          */
1426         String COLUMN_LOGO_URI = "logo_uri";
1427 
1428         /**
1429          * The availability of this TV program.
1430          *
1431          * <p>The value should match one of the followings:
1432          * {@link #AVAILABILITY_AVAILABLE},
1433          * {@link #AVAILABILITY_FREE_WITH_SUBSCRIPTION}, and
1434          * {@link #AVAILABILITY_PAID_CONTENT}.
1435          *
1436          * <p>Type: INTEGER
1437          */
1438         String COLUMN_AVAILABILITY = "availability";
1439 
1440         /**
1441          * The starting price of this TV program.
1442          *
1443          * <p>This indicates the lowest regular acquisition cost of the content. It is only used
1444          * if the availability of the program is {@link #AVAILABILITY_PAID_CONTENT}.
1445          *
1446          * <p>Type: TEXT
1447          * @see #COLUMN_OFFER_PRICE
1448          */
1449         String COLUMN_STARTING_PRICE = "starting_price";
1450 
1451         /**
1452          * The offer price of this TV program.
1453          *
1454          * <p>This is the promotional cost of the content. It is only used if the availability of
1455          * the program is {@link #AVAILABILITY_PAID_CONTENT}.
1456          *
1457          * <p>Type: TEXT
1458          * @see #COLUMN_STARTING_PRICE
1459          */
1460         String COLUMN_OFFER_PRICE = "offer_price";
1461 
1462         /**
1463          * The release date of this TV program.
1464          *
1465          * <p>The value should be in one of the following formats:
1466          * "yyyy", "yyyy-MM-dd", and "yyyy-MM-ddTHH:mm:ssZ" (UTC in ISO 8601).
1467          *
1468          * <p>Type: TEXT
1469          */
1470         String COLUMN_RELEASE_DATE = "release_date";
1471 
1472         /**
1473          * The count of the items included in this TV program.
1474          *
1475          * <p>This is only relevant if the program represents a collection of items such as series,
1476          * episodes, or music tracks.
1477          *
1478          * <p>Type: INTEGER
1479          */
1480         String COLUMN_ITEM_COUNT = "item_count";
1481 
1482         /**
1483          * The flag indicating whether this TV program is live or not.
1484          *
1485          * <p>A value of 1 indicates that the content is airing and should be consumed now, a value
1486          * of 0 indicates that the content is off the air and does not need to be consumed at the
1487          * present time. If not specified, the value is set to 0 (not live) by default.
1488          *
1489          * <p>Type: INTEGER (boolean)
1490          */
1491         String COLUMN_LIVE = "live";
1492 
1493         /**
1494          * The internal ID used by individual TV input services.
1495          *
1496          * <p>This is internal to the provider that inserted it, and should not be decoded by other
1497          * apps.
1498          *
1499          * <p>Can be empty.
1500          *
1501          * <p>Type: TEXT
1502          */
1503         String COLUMN_INTERNAL_PROVIDER_ID = "internal_provider_id";
1504 
1505         /**
1506          * The URI for the preview video.
1507          *
1508          * <p>The data in the column must be a URL, or a URI in one of the following formats:
1509          *
1510          * <ul>
1511          * <li>content ({@link android.content.ContentResolver#SCHEME_CONTENT})</li>
1512          * <li>android.resource ({@link android.content.ContentResolver#SCHEME_ANDROID_RESOURCE})
1513          * </li>
1514          * <li>file ({@link android.content.ContentResolver#SCHEME_FILE})</li>
1515          * </ul>
1516          *
1517          * <p>Can be empty.
1518          *
1519          * <p>Type: TEXT
1520          */
1521         String COLUMN_PREVIEW_VIDEO_URI = "preview_video_uri";
1522 
1523         /**
1524          * The last playback position (in milliseconds) of the original content of this preview
1525          * program.
1526          *
1527          * <p>Can be empty.
1528          *
1529          * <p>Type: INTEGER
1530          */
1531         String COLUMN_LAST_PLAYBACK_POSITION_MILLIS =
1532                 "last_playback_position_millis";
1533 
1534         /**
1535          * The duration (in milliseconds) of the original content of this preview program.
1536          *
1537          * <p>Can be empty.
1538          *
1539          * <p>Type: INTEGER
1540          */
1541         String COLUMN_DURATION_MILLIS = "duration_millis";
1542 
1543         /**
1544          * The intent URI which is launched when the preview program is selected.
1545          *
1546          * <p>The URI is created using {@link Intent#toUri} with {@link Intent#URI_INTENT_SCHEME}
1547          * and converted back to the original intent with {@link Intent#parseUri}. The intent is
1548          * launched when the user selects the preview program item.
1549          *
1550          * <p>Can be empty.
1551          *
1552          * <p>Type: TEXT
1553          */
1554         String COLUMN_INTENT_URI = "intent_uri";
1555 
1556         /**
1557          * The flag indicating whether this program is transient or not.
1558          *
1559          * <p>A value of 1 indicates that the channel will be automatically removed by the system on
1560          * reboot, and a value of 0 indicates that the channel is persistent across reboot. If not
1561          * specified, this value is set to 0 (not transient) by default.
1562          *
1563          * <p>Type: INTEGER (boolean)
1564          * @see Channels#COLUMN_TRANSIENT
1565          */
1566         String COLUMN_TRANSIENT = "transient";
1567 
1568         /**
1569          * The type of interaction for this TV program.
1570          *
1571          * <p> The value should match one of the followings:
1572          * {@link #INTERACTION_TYPE_VIEWS},
1573          * {@link #INTERACTION_TYPE_LISTENS},
1574          * {@link #INTERACTION_TYPE_FOLLOWERS},
1575          * {@link #INTERACTION_TYPE_FANS},
1576          * {@link #INTERACTION_TYPE_LIKES},
1577          * {@link #INTERACTION_TYPE_THUMBS}, and
1578          * {@link #INTERACTION_TYPE_VIEWERS}.
1579          *
1580          * <p>Type: INTEGER
1581          * @see #COLUMN_INTERACTION_COUNT
1582          */
1583         String COLUMN_INTERACTION_TYPE = "interaction_type";
1584 
1585         /**
1586          * The interaction count for this program.
1587          *
1588          * <p>This indicates the number of times interaction has happened.
1589          *
1590          * <p>Type: INTEGER (long)
1591          * @see #COLUMN_INTERACTION_TYPE
1592          */
1593         String COLUMN_INTERACTION_COUNT = "interaction_count";
1594 
1595         /**
1596          * The author or artist of this content.
1597          *
1598          * <p>Type: TEXT
1599          */
1600         String COLUMN_AUTHOR = "author";
1601 
1602         /**
1603          * The flag indicating whether this TV program is browsable or not.
1604          *
1605          * <p>This column can only be set by applications having proper system permission. For
1606          * other applications, this is a read-only column.
1607          *
1608          * <p>A value of 1 indicates that the program is browsable and can be shown to users in
1609          * the UI. A value of 0 indicates that the program should be hidden from users and the
1610          * application who changes this value to 0 should send
1611          * {@link #ACTION_WATCH_NEXT_PROGRAM_BROWSABLE_DISABLED} to the owner of the program
1612          * to notify this change.
1613          *
1614          * <p>This value is set to 1 (browsable) by default.
1615          *
1616          * <p>Type: INTEGER (boolean)
1617          */
1618         String COLUMN_BROWSABLE = "browsable";
1619 
1620         /**
1621          * The content ID of this TV program.
1622          *
1623          * <p>A public ID of the content which allows the application to apply the same operation to
1624          * all the program copies in different channels.
1625          *
1626          * <p>Can be empty.
1627          *
1628          * <p>Type: TEXT
1629          */
1630         String COLUMN_CONTENT_ID = "content_id";
1631 
1632     }
1633 
1634     /** Column definitions for the TV channels table. */
1635     public static final class Channels implements BaseTvColumns {
1636 
1637         /**
1638          * The content:// style URI for this table.
1639          *
1640          * <p>SQL selection is not supported for {@link ContentResolver#query},
1641          * {@link ContentResolver#update} and {@link ContentResolver#delete} operations.
1642          */
1643         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/"
1644                 + PATH_CHANNEL);
1645 
1646         /** The MIME type of a directory of TV channels. */
1647         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/channel";
1648 
1649         /** The MIME type of a single TV channel. */
1650         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/channel";
1651 
1652         /** @hide */
1653         @StringDef(prefix = { "TYPE_" }, value = {
1654                 TYPE_OTHER,
1655                 TYPE_NTSC,
1656                 TYPE_PAL,
1657                 TYPE_SECAM,
1658                 TYPE_DVB_T,
1659                 TYPE_DVB_T2,
1660                 TYPE_DVB_S,
1661                 TYPE_DVB_S2,
1662                 TYPE_DVB_C,
1663                 TYPE_DVB_C2,
1664                 TYPE_DVB_H,
1665                 TYPE_DVB_SH,
1666                 TYPE_ATSC_T,
1667                 TYPE_ATSC_C,
1668                 TYPE_ATSC_M_H,
1669                 TYPE_ISDB_T,
1670                 TYPE_ISDB_TB,
1671                 TYPE_ISDB_S,
1672                 TYPE_ISDB_C,
1673                 TYPE_1SEG,
1674                 TYPE_DTMB,
1675                 TYPE_CMMB,
1676                 TYPE_T_DMB,
1677                 TYPE_S_DMB,
1678                 TYPE_PREVIEW,
1679         })
1680         @Retention(RetentionPolicy.SOURCE)
1681         public @interface Type {}
1682 
1683         /**
1684          * A generic channel type.
1685          *
1686          * Use this if the current channel is streaming-based or its broadcast system type does not
1687          * fit under any other types. This is the default channel type.
1688          *
1689          * @see #COLUMN_TYPE
1690          */
1691         public static final String TYPE_OTHER = "TYPE_OTHER";
1692 
1693         /**
1694          * The channel type for NTSC.
1695          *
1696          * @see #COLUMN_TYPE
1697          */
1698         public static final String TYPE_NTSC = "TYPE_NTSC";
1699 
1700         /**
1701          * The channel type for PAL.
1702          *
1703          * @see #COLUMN_TYPE
1704          */
1705         public static final String TYPE_PAL = "TYPE_PAL";
1706 
1707         /**
1708          * The channel type for SECAM.
1709          *
1710          * @see #COLUMN_TYPE
1711          */
1712         public static final String TYPE_SECAM = "TYPE_SECAM";
1713 
1714         /**
1715          * The channel type for DVB-T (terrestrial).
1716          *
1717          * @see #COLUMN_TYPE
1718          */
1719         public static final String TYPE_DVB_T = "TYPE_DVB_T";
1720 
1721         /**
1722          * The channel type for DVB-T2 (terrestrial).
1723          *
1724          * @see #COLUMN_TYPE
1725          */
1726         public static final String TYPE_DVB_T2 = "TYPE_DVB_T2";
1727 
1728         /**
1729          * The channel type for DVB-S (satellite).
1730          *
1731          * @see #COLUMN_TYPE
1732          */
1733         public static final String TYPE_DVB_S = "TYPE_DVB_S";
1734 
1735         /**
1736          * The channel type for DVB-S2 (satellite).
1737          *
1738          * @see #COLUMN_TYPE
1739          */
1740         public static final String TYPE_DVB_S2 = "TYPE_DVB_S2";
1741 
1742         /**
1743          * The channel type for DVB-C (cable).
1744          *
1745          * @see #COLUMN_TYPE
1746          */
1747         public static final String TYPE_DVB_C = "TYPE_DVB_C";
1748 
1749         /**
1750          * The channel type for DVB-C2 (cable).
1751          *
1752          * @see #COLUMN_TYPE
1753          */
1754         public static final String TYPE_DVB_C2 = "TYPE_DVB_C2";
1755 
1756         /**
1757          * The channel type for DVB-H (handheld).
1758          *
1759          * @see #COLUMN_TYPE
1760          */
1761         public static final String TYPE_DVB_H = "TYPE_DVB_H";
1762 
1763         /**
1764          * The channel type for DVB-SH (satellite).
1765          *
1766          * @see #COLUMN_TYPE
1767          */
1768         public static final String TYPE_DVB_SH = "TYPE_DVB_SH";
1769 
1770         /**
1771          * The channel type for ATSC (terrestrial).
1772          *
1773          * @see #COLUMN_TYPE
1774          */
1775         public static final String TYPE_ATSC_T = "TYPE_ATSC_T";
1776 
1777         /**
1778          * The channel type for ATSC (cable).
1779          *
1780          * @see #COLUMN_TYPE
1781          */
1782         public static final String TYPE_ATSC_C = "TYPE_ATSC_C";
1783 
1784         /**
1785          * The channel type for ATSC-M/H (mobile/handheld).
1786          *
1787          * @see #COLUMN_TYPE
1788          */
1789         public static final String TYPE_ATSC_M_H = "TYPE_ATSC_M_H";
1790 
1791         /**
1792          * The channel type for ISDB-T (terrestrial).
1793          *
1794          * @see #COLUMN_TYPE
1795          */
1796         public static final String TYPE_ISDB_T = "TYPE_ISDB_T";
1797 
1798         /**
1799          * The channel type for ISDB-Tb (Brazil).
1800          *
1801          * @see #COLUMN_TYPE
1802          */
1803         public static final String TYPE_ISDB_TB = "TYPE_ISDB_TB";
1804 
1805         /**
1806          * The channel type for ISDB-S (satellite).
1807          *
1808          * @see #COLUMN_TYPE
1809          */
1810         public static final String TYPE_ISDB_S = "TYPE_ISDB_S";
1811 
1812         /**
1813          * The channel type for ISDB-C (cable).
1814          *
1815          * @see #COLUMN_TYPE
1816          */
1817         public static final String TYPE_ISDB_C = "TYPE_ISDB_C";
1818 
1819         /**
1820          * The channel type for 1seg (handheld).
1821          *
1822          * @see #COLUMN_TYPE
1823          */
1824         public static final String TYPE_1SEG = "TYPE_1SEG";
1825 
1826         /**
1827          * The channel type for DTMB (terrestrial).
1828          *
1829          * @see #COLUMN_TYPE
1830          */
1831         public static final String TYPE_DTMB = "TYPE_DTMB";
1832 
1833         /**
1834          * The channel type for CMMB (handheld).
1835          *
1836          * @see #COLUMN_TYPE
1837          */
1838         public static final String TYPE_CMMB = "TYPE_CMMB";
1839 
1840         /**
1841          * The channel type for T-DMB (terrestrial).
1842          *
1843          * @see #COLUMN_TYPE
1844          */
1845         public static final String TYPE_T_DMB = "TYPE_T_DMB";
1846 
1847         /**
1848          * The channel type for S-DMB (satellite).
1849          *
1850          * @see #COLUMN_TYPE
1851          */
1852         public static final String TYPE_S_DMB = "TYPE_S_DMB";
1853 
1854         /**
1855          * The channel type for preview videos.
1856          *
1857          * <P>Unlike other broadcast TV channel types, the programs in the preview channel usually
1858          * are promotional videos. The UI may treat the preview channels differently from the other
1859          * broadcast channels.
1860          *
1861          * @see #COLUMN_TYPE
1862          */
1863         public static final String TYPE_PREVIEW = "TYPE_PREVIEW";
1864 
1865         /** @hide */
1866         @StringDef(prefix = { "SERVICE_TYPE_" }, value = {
1867                 SERVICE_TYPE_OTHER,
1868                 SERVICE_TYPE_AUDIO_VIDEO,
1869                 SERVICE_TYPE_AUDIO,
1870         })
1871         @Retention(RetentionPolicy.SOURCE)
1872         public @interface ServiceType {}
1873 
1874         /** A generic service type. */
1875         public static final String SERVICE_TYPE_OTHER = "SERVICE_TYPE_OTHER";
1876 
1877         /** The service type for regular TV channels that have both audio and video. */
1878         public static final String SERVICE_TYPE_AUDIO_VIDEO = "SERVICE_TYPE_AUDIO_VIDEO";
1879 
1880         /** The service type for radio channels that have audio only. */
1881         public static final String SERVICE_TYPE_AUDIO = "SERVICE_TYPE_AUDIO";
1882 
1883         /** @hide */
1884         @StringDef(prefix = { "VIDEO_FORMAT_" }, value = {
1885                 VIDEO_FORMAT_240P,
1886                 VIDEO_FORMAT_360P,
1887                 VIDEO_FORMAT_480I,
1888                 VIDEO_FORMAT_576I,
1889                 VIDEO_FORMAT_576P,
1890                 VIDEO_FORMAT_720P,
1891                 VIDEO_FORMAT_1080I,
1892                 VIDEO_FORMAT_1080P,
1893                 VIDEO_FORMAT_2160P,
1894                 VIDEO_FORMAT_4320P,
1895         })
1896         @Retention(RetentionPolicy.SOURCE)
1897         public @interface VideoFormat {}
1898 
1899         /** The video format for 240p. */
1900         public static final String VIDEO_FORMAT_240P = "VIDEO_FORMAT_240P";
1901 
1902         /** The video format for 360p. */
1903         public static final String VIDEO_FORMAT_360P = "VIDEO_FORMAT_360P";
1904 
1905         /** The video format for 480i. */
1906         public static final String VIDEO_FORMAT_480I = "VIDEO_FORMAT_480I";
1907 
1908         /** The video format for 480p. */
1909         public static final String VIDEO_FORMAT_480P = "VIDEO_FORMAT_480P";
1910 
1911         /** The video format for 576i. */
1912         public static final String VIDEO_FORMAT_576I = "VIDEO_FORMAT_576I";
1913 
1914         /** The video format for 576p. */
1915         public static final String VIDEO_FORMAT_576P = "VIDEO_FORMAT_576P";
1916 
1917         /** The video format for 720p. */
1918         public static final String VIDEO_FORMAT_720P = "VIDEO_FORMAT_720P";
1919 
1920         /** The video format for 1080i. */
1921         public static final String VIDEO_FORMAT_1080I = "VIDEO_FORMAT_1080I";
1922 
1923         /** The video format for 1080p. */
1924         public static final String VIDEO_FORMAT_1080P = "VIDEO_FORMAT_1080P";
1925 
1926         /** The video format for 2160p. */
1927         public static final String VIDEO_FORMAT_2160P = "VIDEO_FORMAT_2160P";
1928 
1929         /** The video format for 4320p. */
1930         public static final String VIDEO_FORMAT_4320P = "VIDEO_FORMAT_4320P";
1931 
1932         /** @hide */
1933         @StringDef(prefix = { "VIDEO_RESOLUTION_" }, value = {
1934                 VIDEO_RESOLUTION_SD,
1935                 VIDEO_RESOLUTION_ED,
1936                 VIDEO_RESOLUTION_HD,
1937                 VIDEO_RESOLUTION_FHD,
1938                 VIDEO_RESOLUTION_UHD,
1939         })
1940         @Retention(RetentionPolicy.SOURCE)
1941         public @interface VideoResolution {}
1942 
1943         /** The video resolution for standard-definition. */
1944         public static final String VIDEO_RESOLUTION_SD = "VIDEO_RESOLUTION_SD";
1945 
1946         /** The video resolution for enhanced-definition. */
1947         public static final String VIDEO_RESOLUTION_ED = "VIDEO_RESOLUTION_ED";
1948 
1949         /** The video resolution for high-definition. */
1950         public static final String VIDEO_RESOLUTION_HD = "VIDEO_RESOLUTION_HD";
1951 
1952         /** The video resolution for full high-definition. */
1953         public static final String VIDEO_RESOLUTION_FHD = "VIDEO_RESOLUTION_FHD";
1954 
1955         /** The video resolution for ultra high-definition. */
1956         public static final String VIDEO_RESOLUTION_UHD = "VIDEO_RESOLUTION_UHD";
1957 
1958         private static final Map<String, String> VIDEO_FORMAT_TO_RESOLUTION_MAP = new HashMap<>();
1959 
1960         static {
VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_480I, VIDEO_RESOLUTION_SD)1961             VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_480I, VIDEO_RESOLUTION_SD);
VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_480P, VIDEO_RESOLUTION_ED)1962             VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_480P, VIDEO_RESOLUTION_ED);
VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_576I, VIDEO_RESOLUTION_SD)1963             VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_576I, VIDEO_RESOLUTION_SD);
VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_576P, VIDEO_RESOLUTION_ED)1964             VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_576P, VIDEO_RESOLUTION_ED);
VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_720P, VIDEO_RESOLUTION_HD)1965             VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_720P, VIDEO_RESOLUTION_HD);
VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_1080I, VIDEO_RESOLUTION_HD)1966             VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_1080I, VIDEO_RESOLUTION_HD);
VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_1080P, VIDEO_RESOLUTION_FHD)1967             VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_1080P, VIDEO_RESOLUTION_FHD);
VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_2160P, VIDEO_RESOLUTION_UHD)1968             VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_2160P, VIDEO_RESOLUTION_UHD);
VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_4320P, VIDEO_RESOLUTION_UHD)1969             VIDEO_FORMAT_TO_RESOLUTION_MAP.put(VIDEO_FORMAT_4320P, VIDEO_RESOLUTION_UHD);
1970         }
1971 
1972         /**
1973          * Returns the video resolution (definition) for a given video format.
1974          *
1975          * @param videoFormat The video format defined in {@link Channels}.
1976          * @return the corresponding video resolution string. {@code null} if the resolution string
1977          *         is not defined for the given video format.
1978          * @see #COLUMN_VIDEO_FORMAT
1979          */
1980         @Nullable
getVideoResolution(@ideoFormat String videoFormat)1981         public static final String getVideoResolution(@VideoFormat String videoFormat) {
1982             return VIDEO_FORMAT_TO_RESOLUTION_MAP.get(videoFormat);
1983         }
1984 
1985         /**
1986          * The ID of the TV input service that provides this TV channel.
1987          *
1988          * <p>Use {@link #buildInputId} to build the ID.
1989          *
1990          * <p>This is a required field.
1991          *
1992          * <p>Type: TEXT
1993          */
1994         public static final String COLUMN_INPUT_ID = "input_id";
1995 
1996         /**
1997          * The broadcast system type of this TV channel.
1998          *
1999          * <p>This is used to indicate the broadcast standard (e.g. ATSC, DVB or ISDB) the current
2000          * channel conforms to. Use {@link #TYPE_OTHER} for streaming-based channels, which is the
2001          * default channel type. The value should match one of the followings:
2002          * {@link #TYPE_1SEG},
2003          * {@link #TYPE_ATSC_C},
2004          * {@link #TYPE_ATSC_M_H},
2005          * {@link #TYPE_ATSC_T},
2006          * {@link #TYPE_CMMB},
2007          * {@link #TYPE_DTMB},
2008          * {@link #TYPE_DVB_C},
2009          * {@link #TYPE_DVB_C2},
2010          * {@link #TYPE_DVB_H},
2011          * {@link #TYPE_DVB_S},
2012          * {@link #TYPE_DVB_S2},
2013          * {@link #TYPE_DVB_SH},
2014          * {@link #TYPE_DVB_T},
2015          * {@link #TYPE_DVB_T2},
2016          * {@link #TYPE_ISDB_C},
2017          * {@link #TYPE_ISDB_S},
2018          * {@link #TYPE_ISDB_T},
2019          * {@link #TYPE_ISDB_TB},
2020          * {@link #TYPE_NTSC},
2021          * {@link #TYPE_OTHER},
2022          * {@link #TYPE_PAL},
2023          * {@link #TYPE_SECAM},
2024          * {@link #TYPE_S_DMB},
2025          * {@link #TYPE_T_DMB}, and
2026          * {@link #TYPE_PREVIEW}.
2027          *
2028          * <p>This value cannot be changed once it's set. Trying to modify it will make the update
2029          * fail.
2030          *
2031          * <p>This is a required field.
2032          *
2033          * <p>Type: TEXT
2034          */
2035         public static final String COLUMN_TYPE = "type";
2036 
2037         /**
2038          * The predefined service type of this TV channel.
2039          *
2040          * <p>This is primarily used to indicate whether the current channel is a regular TV channel
2041          * or a radio-like channel. Use the same coding for {@code service_type} in the underlying
2042          * broadcast standard if it is defined there (e.g. ATSC A/53, ETSI EN 300 468 and ARIB
2043          * STD-B10). Otherwise use one of the followings: {@link #SERVICE_TYPE_OTHER},
2044          * {@link #SERVICE_TYPE_AUDIO_VIDEO}, {@link #SERVICE_TYPE_AUDIO}
2045          *
2046          * <p>This is a required field.
2047          *
2048          * <p>Type: TEXT
2049          */
2050         public static final String COLUMN_SERVICE_TYPE = "service_type";
2051 
2052         /**
2053          * The original network ID of this TV channel.
2054          *
2055          * <p>It is used to identify the originating delivery system, if applicable. Use the same
2056          * coding for {@code original_network_id} for ETSI EN 300 468/TR 101 211 and ARIB STD-B10.
2057          *
2058          * <p>This is a required field only if the underlying broadcast standard defines the same
2059          * name field. Otherwise, leave empty.
2060          *
2061          * <p>Type: INTEGER
2062          */
2063         public static final String COLUMN_ORIGINAL_NETWORK_ID = "original_network_id";
2064 
2065         /**
2066          * The transport stream ID of this channel.
2067          *
2068          * <p>It is used to identify the Transport Stream that contains the current channel from any
2069          * other multiplex within a network, if applicable. Use the same coding for
2070          * {@code transport_stream_id} defined in ISO/IEC 13818-1 if the channel is transmitted via
2071          * the MPEG Transport Stream.
2072          *
2073          * <p>This is a required field only if the current channel is transmitted via the MPEG
2074          * Transport Stream. Leave empty otherwise.
2075          *
2076          * <p>Type: INTEGER
2077          */
2078         public static final String COLUMN_TRANSPORT_STREAM_ID = "transport_stream_id";
2079 
2080         /**
2081          * The service ID of this channel.
2082          *
2083          * <p>It is used to identify the current service, or channel from any other services within
2084          * a given Transport Stream, if applicable. Use the same coding for {@code service_id} in
2085          * ETSI EN 300 468 and ARIB STD-B10 or {@code program_number} in ISO/IEC 13818-1.
2086          *
2087          * <p>This is a required field only if the underlying broadcast standard defines the same
2088          * name field, or the current channel is transmitted via the MPEG Transport Stream. Leave
2089          * empty otherwise.
2090          *
2091          * <p>Type: INTEGER
2092          */
2093         public static final String COLUMN_SERVICE_ID = "service_id";
2094 
2095         /**
2096          * The channel number that is displayed to the user.
2097          *
2098          * <p>The format can vary depending on broadcast standard and product specification.
2099          *
2100          * <p>Type: TEXT
2101          */
2102         public static final String COLUMN_DISPLAY_NUMBER = "display_number";
2103 
2104         /**
2105          * The channel name that is displayed to the user.
2106          *
2107          * <p>A call sign is a good candidate to use for this purpose but any name that helps the
2108          * user recognize the current channel will be enough. Can also be empty depending on
2109          * broadcast standard.
2110          *
2111          * <p> Type: TEXT
2112          */
2113         public static final String COLUMN_DISPLAY_NAME = "display_name";
2114 
2115         /**
2116          * The network affiliation for this TV channel.
2117          *
2118          * <p>This is used to identify a channel that is commonly called by its network affiliation
2119          * instead of the display name. Examples include ABC for the channel KGO-HD, FOX for the
2120          * channel KTVU-HD and NBC for the channel KNTV-HD. Can be empty if not applicable.
2121          *
2122          * <p>Type: TEXT
2123          */
2124         public static final String COLUMN_NETWORK_AFFILIATION = "network_affiliation";
2125 
2126         /**
2127          * The description of this TV channel.
2128          *
2129          * <p>Can be empty initially.
2130          *
2131          * <p>Type: TEXT
2132          */
2133         public static final String COLUMN_DESCRIPTION = "description";
2134 
2135         /**
2136          * The typical video format for programs from this TV channel.
2137          *
2138          * <p>This is primarily used to filter out channels based on video format by applications.
2139          * The value should match one of the followings: {@link #VIDEO_FORMAT_240P},
2140          * {@link #VIDEO_FORMAT_360P}, {@link #VIDEO_FORMAT_480I}, {@link #VIDEO_FORMAT_480P},
2141          * {@link #VIDEO_FORMAT_576I}, {@link #VIDEO_FORMAT_576P}, {@link #VIDEO_FORMAT_720P},
2142          * {@link #VIDEO_FORMAT_1080I}, {@link #VIDEO_FORMAT_1080P}, {@link #VIDEO_FORMAT_2160P},
2143          * {@link #VIDEO_FORMAT_4320P}. Note that the actual video resolution of each program from a
2144          * given channel can vary thus one should use {@link Programs#COLUMN_VIDEO_WIDTH} and
2145          * {@link Programs#COLUMN_VIDEO_HEIGHT} to get more accurate video resolution.
2146          *
2147          * <p>Type: TEXT
2148          *
2149          * @see #getVideoResolution
2150          */
2151         public static final String COLUMN_VIDEO_FORMAT = "video_format";
2152 
2153         /**
2154          * The flag indicating whether this TV channel is browsable or not.
2155          *
2156          * <p>This column can only be set by applications having proper system permission. For
2157          * other applications, this is a read-only column.
2158          *
2159          * <p>A value of 1 indicates the channel is included in the channel list that applications
2160          * use to browse channels, a value of 0 indicates the channel is not included in the list.
2161          * If not specified, this value is set to 0 (not browsable) by default.
2162          *
2163          * <p>Type: INTEGER (boolean)
2164          */
2165         public static final String COLUMN_BROWSABLE = "browsable";
2166 
2167         /**
2168          * The flag indicating whether this TV channel is searchable or not.
2169          *
2170          * <p>The columns of searchable channels can be read by other applications that have proper
2171          * permission. Care must be taken not to open sensitive data.
2172          *
2173          * <p>A value of 1 indicates that the channel is searchable and its columns can be read by
2174          * other applications, a value of 0 indicates that the channel is hidden and its columns can
2175          * be read only by the package that owns the channel and the system. If not specified, this
2176          * value is set to 1 (searchable) by default.
2177          *
2178          * <p>Type: INTEGER (boolean)
2179          */
2180         public static final String COLUMN_SEARCHABLE = "searchable";
2181 
2182         /**
2183          * The flag indicating whether this TV channel is locked or not.
2184          *
2185          * <p>This is primarily used for alternative parental control to prevent unauthorized users
2186          * from watching the current channel regardless of the content rating. A value of 1
2187          * indicates the channel is locked and the user is required to enter passcode to unlock it
2188          * in order to watch the current program from the channel, a value of 0 indicates the
2189          * channel is not locked thus the user is not prompted to enter passcode If not specified,
2190          * this value is set to 0 (not locked) by default.
2191          *
2192          * <p>This column can only be set by applications having proper system permission to
2193          * modify parental control settings. For other applications, this is a read-only column.
2194 
2195          * <p>Type: INTEGER (boolean)
2196          */
2197         public static final String COLUMN_LOCKED = "locked";
2198 
2199         /**
2200          * The URI for the app badge icon of the app link template for this channel.
2201          *
2202          * <p>This small icon is overlaid at the bottom of the poster art specified by
2203          * {@link #COLUMN_APP_LINK_POSTER_ART_URI}. The data in the column must be a URI in one of
2204          * the following formats:
2205          *
2206          * <ul>
2207          * <li>content ({@link android.content.ContentResolver#SCHEME_CONTENT})</li>
2208          * <li>android.resource ({@link android.content.ContentResolver#SCHEME_ANDROID_RESOURCE})
2209          * </li>
2210          * <li>file ({@link android.content.ContentResolver#SCHEME_FILE})</li>
2211          * </ul>
2212          *
2213          * <p>The app-linking allows channel input sources to provide activity links from their live
2214          * channel programming to another activity. This enables content providers to increase user
2215          * engagement by offering the viewer other content or actions.
2216          *
2217          * <p>Type: TEXT
2218          * @see #COLUMN_APP_LINK_COLOR
2219          * @see #COLUMN_APP_LINK_INTENT_URI
2220          * @see #COLUMN_APP_LINK_POSTER_ART_URI
2221          * @see #COLUMN_APP_LINK_TEXT
2222          */
2223         public static final String COLUMN_APP_LINK_ICON_URI = "app_link_icon_uri";
2224 
2225         /**
2226          * The URI for the poster art used as the background of the app link template for this
2227          * channel.
2228          *
2229          * <p>The data in the column must be a URL, or a URI in one of the following formats:
2230          *
2231          * <ul>
2232          * <li>content ({@link android.content.ContentResolver#SCHEME_CONTENT})</li>
2233          * <li>android.resource ({@link android.content.ContentResolver#SCHEME_ANDROID_RESOURCE})
2234          * </li>
2235          * <li>file ({@link android.content.ContentResolver#SCHEME_FILE})</li>
2236          * </ul>
2237          *
2238          * <p>The app-linking allows channel input sources to provide activity links from their live
2239          * channel programming to another activity. This enables content providers to increase user
2240          * engagement by offering the viewer other content or actions.
2241          *
2242          * <p>Type: TEXT
2243          * @see #COLUMN_APP_LINK_COLOR
2244          * @see #COLUMN_APP_LINK_ICON_URI
2245          * @see #COLUMN_APP_LINK_INTENT_URI
2246          * @see #COLUMN_APP_LINK_TEXT
2247          */
2248         public static final String COLUMN_APP_LINK_POSTER_ART_URI = "app_link_poster_art_uri";
2249 
2250         /**
2251          * The link text of the app link template for this channel.
2252          *
2253          * <p>This provides a short description of the action that happens when the corresponding
2254          * app link is clicked.
2255          *
2256          * <p>The app-linking allows channel input sources to provide activity links from their live
2257          * channel programming to another activity. This enables content providers to increase user
2258          * engagement by offering the viewer other content or actions.
2259          *
2260          * <p>Type: TEXT
2261          * @see #COLUMN_APP_LINK_COLOR
2262          * @see #COLUMN_APP_LINK_ICON_URI
2263          * @see #COLUMN_APP_LINK_INTENT_URI
2264          * @see #COLUMN_APP_LINK_POSTER_ART_URI
2265          */
2266         public static final String COLUMN_APP_LINK_TEXT = "app_link_text";
2267 
2268         /**
2269          * The accent color of the app link template for this channel. This is primarily used for
2270          * the background color of the text box in the template.
2271          *
2272          * <p>The app-linking allows channel input sources to provide activity links from their live
2273          * channel programming to another activity. This enables content providers to increase user
2274          * engagement by offering the viewer other content or actions.
2275          *
2276          * <p>Type: INTEGER (color value)
2277          * @see #COLUMN_APP_LINK_ICON_URI
2278          * @see #COLUMN_APP_LINK_INTENT_URI
2279          * @see #COLUMN_APP_LINK_POSTER_ART_URI
2280          * @see #COLUMN_APP_LINK_TEXT
2281          */
2282         public static final String COLUMN_APP_LINK_COLOR = "app_link_color";
2283 
2284         /**
2285          * The intent URI of the app link for this channel.
2286          *
2287          * <p>The URI is created using {@link Intent#toUri} with {@link Intent#URI_INTENT_SCHEME}
2288          * and converted back to the original intent with {@link Intent#parseUri}. The intent is
2289          * launched when the user clicks the corresponding app link for the current channel.
2290          *
2291          * <p>The app-linking allows channel input sources to provide activity links from their live
2292          * channel programming to another activity. This enables content providers to increase user
2293          * engagement by offering the viewer other content or actions.
2294          *
2295          * <p>Type: TEXT
2296          * @see #COLUMN_APP_LINK_COLOR
2297          * @see #COLUMN_APP_LINK_ICON_URI
2298          * @see #COLUMN_APP_LINK_POSTER_ART_URI
2299          * @see #COLUMN_APP_LINK_TEXT
2300          */
2301         public static final String COLUMN_APP_LINK_INTENT_URI = "app_link_intent_uri";
2302 
2303         /**
2304          * The internal ID used by individual TV input services.
2305          *
2306          * <p>This is internal to the provider that inserted it, and should not be decoded by other
2307          * apps.
2308          *
2309          * <p>Can be empty.
2310          *
2311          * <p>Type: TEXT
2312          */
2313         public static final String COLUMN_INTERNAL_PROVIDER_ID = "internal_provider_id";
2314 
2315         /**
2316          * Internal data used by individual TV input services.
2317          *
2318          * <p>This is internal to the provider that inserted it, and should not be decoded by other
2319          * apps.
2320          *
2321          * <p>Type: BLOB
2322          */
2323         public static final String COLUMN_INTERNAL_PROVIDER_DATA = "internal_provider_data";
2324 
2325         /**
2326          * Internal integer flag used by individual TV input services.
2327          *
2328          * <p>This is internal to the provider that inserted it, and should not be decoded by other
2329          * apps.
2330          *
2331          * <p>Type: INTEGER
2332          */
2333         public static final String COLUMN_INTERNAL_PROVIDER_FLAG1 = "internal_provider_flag1";
2334 
2335         /**
2336          * Internal integer flag used by individual TV input services.
2337          *
2338          * <p>This is internal to the provider that inserted it, and should not be decoded by other
2339          * apps.
2340          *
2341          * <p>Type: INTEGER
2342          */
2343         public static final String COLUMN_INTERNAL_PROVIDER_FLAG2 = "internal_provider_flag2";
2344 
2345         /**
2346          * Internal integer flag used by individual TV input services.
2347          *
2348          * <p>This is internal to the provider that inserted it, and should not be decoded by other
2349          * apps.
2350          *
2351          * <p>Type: INTEGER
2352          */
2353         public static final String COLUMN_INTERNAL_PROVIDER_FLAG3 = "internal_provider_flag3";
2354 
2355         /**
2356          * Internal integer flag used by individual TV input services.
2357          *
2358          * <p>This is internal to the provider that inserted it, and should not be decoded by other
2359          * apps.
2360          *
2361          * <p>Type: INTEGER
2362          */
2363         public static final String COLUMN_INTERNAL_PROVIDER_FLAG4 = "internal_provider_flag4";
2364 
2365         /**
2366          * The version number of this row entry used by TV input services.
2367          *
2368          * <p>This is best used by sync adapters to identify the rows to update. The number can be
2369          * defined by individual TV input services. One may assign the same value as
2370          * {@code version_number} that appears in ETSI EN 300 468 or ATSC A/65, if the data are
2371          * coming from a TV broadcast.
2372          *
2373          * <p>Type: INTEGER
2374          */
2375         public static final String COLUMN_VERSION_NUMBER = "version_number";
2376 
2377         /**
2378          * The flag indicating whether this TV channel is transient or not.
2379          *
2380          * <p>A value of 1 indicates that the channel will be automatically removed by the system on
2381          * reboot, and a value of 0 indicates that the channel is persistent across reboot. If not
2382          * specified, this value is set to 0 (not transient) by default.
2383          *
2384          * <p>Type: INTEGER (boolean)
2385          * @see PreviewPrograms#COLUMN_TRANSIENT
2386          * @see WatchNextPrograms#COLUMN_TRANSIENT
2387          */
2388         public static final String COLUMN_TRANSIENT = "transient";
2389 
Channels()2390         private Channels() {}
2391 
2392         /**
2393          * A sub-directory of a single TV channel that represents its primary logo.
2394          *
2395          * <p>To access this directory, append {@link Channels.Logo#CONTENT_DIRECTORY} to the raw
2396          * channel URI.  The resulting URI represents an image file, and should be interacted
2397          * using ContentResolver.openAssetFileDescriptor.
2398          *
2399          * <p>Note that this sub-directory also supports opening the logo as an asset file in write
2400          * mode.  Callers can create or replace the primary logo associated with this channel by
2401          * opening the asset file and writing the full-size photo contents into it. (Make sure there
2402          * is no padding around the logo image.) When the file is closed, the image will be parsed,
2403          * sized down if necessary, and stored.
2404          *
2405          * <p>Usage example:
2406          * <pre>
2407          * public void writeChannelLogo(long channelId, byte[] logo) {
2408          *     Uri channelLogoUri = TvContract.buildChannelLogoUri(channelId);
2409          *     try {
2410          *         AssetFileDescriptor fd =
2411          *             getContentResolver().openAssetFileDescriptor(channelLogoUri, "rw");
2412          *         OutputStream os = fd.createOutputStream();
2413          *         os.write(logo);
2414          *         os.close();
2415          *         fd.close();
2416          *     } catch (IOException e) {
2417          *         // Handle error cases.
2418          *     }
2419          * }
2420          * </pre>
2421          */
2422         public static final class Logo {
2423 
2424             /**
2425              * The directory twig for this sub-table.
2426              */
2427             public static final String CONTENT_DIRECTORY = "logo";
2428 
Logo()2429             private Logo() {}
2430         }
2431     }
2432 
2433     /**
2434      * Column definitions for the TV programs table.
2435      *
2436      * <p>By default, the query results will be sorted by
2437      * {@link Programs#COLUMN_START_TIME_UTC_MILLIS} in ascending order.
2438      */
2439     public static final class Programs implements BaseTvColumns, ProgramColumns {
2440 
2441         /**
2442          * The content:// style URI for this table.
2443          *
2444          * <p>SQL selection is not supported for {@link ContentResolver#query},
2445          * {@link ContentResolver#update} and {@link ContentResolver#delete} operations.
2446          */
2447         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/"
2448                 + PATH_PROGRAM);
2449 
2450         /** The MIME type of a directory of TV programs. */
2451         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/program";
2452 
2453         /** The MIME type of a single TV program. */
2454         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/program";
2455 
2456         /**
2457          * The ID of the TV channel that provides this TV program.
2458          *
2459          * <p>This is a part of the channel URI and matches to {@link BaseColumns#_ID}.
2460          *
2461          * <p>This is a required field.
2462          *
2463          * <p>Type: INTEGER (long)
2464          */
2465         public static final String COLUMN_CHANNEL_ID = "channel_id";
2466 
2467         /**
2468          * The season number of this TV program for episodic TV shows.
2469          *
2470          * <p>Can be empty.
2471          *
2472          * <p>Type: INTEGER
2473          *
2474          * @deprecated Use {@link #COLUMN_SEASON_DISPLAY_NUMBER} instead.
2475          */
2476         @Deprecated
2477         public static final String COLUMN_SEASON_NUMBER = "season_number";
2478 
2479         /**
2480          * The episode number of this TV program for episodic TV shows.
2481          *
2482          * <p>Can be empty.
2483          *
2484          * <p>Type: INTEGER
2485          *
2486          * @deprecated Use {@link #COLUMN_EPISODE_DISPLAY_NUMBER} instead.
2487          */
2488         @Deprecated
2489         public static final String COLUMN_EPISODE_NUMBER = "episode_number";
2490 
2491         /**
2492          * The start time of this TV program, in milliseconds since the epoch.
2493          *
2494          * <p>The value should be equal to or larger than {@link #COLUMN_END_TIME_UTC_MILLIS} of the
2495          * previous program in the same channel. In practice, start time will usually be the end
2496          * time of the previous program.
2497          *
2498          * <p>Can be empty if this program belongs to a {@link Channels#TYPE_PREVIEW} channel.
2499          *
2500          * <p>Type: INTEGER (long)
2501          */
2502         public static final String COLUMN_START_TIME_UTC_MILLIS = "start_time_utc_millis";
2503 
2504         /**
2505          * The end time of this TV program, in milliseconds since the epoch.
2506          *
2507          * <p>The value should be equal to or less than {@link #COLUMN_START_TIME_UTC_MILLIS} of the
2508          * next program in the same channel. In practice, end time will usually be the start time of
2509          * the next program.
2510          *
2511          * <p>Can be empty if this program belongs to a {@link Channels#TYPE_PREVIEW} channel.
2512          *
2513          * <p>Type: INTEGER (long)
2514          */
2515         public static final String COLUMN_END_TIME_UTC_MILLIS = "end_time_utc_millis";
2516 
2517         /**
2518          * The comma-separated genre string of this TV program.
2519          *
2520          * <p>Use the same language appeared in the underlying broadcast standard, if applicable.
2521          * (For example, one can refer to the genre strings used in Genre Descriptor of ATSC A/65 or
2522          * Content Descriptor of ETSI EN 300 468, if appropriate.) Otherwise, leave empty. Use
2523          * {@link Genres#encode} to create a text that can be stored in this column. Use
2524          * {@link Genres#decode} to get the broadcast genre strings from the text stored in the
2525          * column.
2526          *
2527          * <p>Type: TEXT
2528          * @see Genres#encode
2529          * @see Genres#decode
2530          */
2531         public static final String COLUMN_BROADCAST_GENRE = "broadcast_genre";
2532 
2533         /**
2534          * The flag indicating whether recording of this program is prohibited.
2535          *
2536          * <p>A value of 1 indicates that recording of this program is prohibited and application
2537          * will not schedule any recording for this program. A value of 0 indicates that the
2538          * recording is not prohibited. If not specified, this value is set to 0 (not prohibited) by
2539          * default.
2540          *
2541          * <p>Type: INTEGER (boolean)
2542          */
2543         public static final String COLUMN_RECORDING_PROHIBITED = "recording_prohibited";
2544 
Programs()2545         private Programs() {}
2546 
2547         /** Canonical genres for TV programs. */
2548         public static final class Genres {
2549             /** @hide */
2550             @StringDef({
2551                     FAMILY_KIDS,
2552                     SPORTS,
2553                     SHOPPING,
2554                     MOVIES,
2555                     COMEDY,
2556                     TRAVEL,
2557                     DRAMA,
2558                     EDUCATION,
2559                     ANIMAL_WILDLIFE,
2560                     NEWS,
2561                     GAMING,
2562                     ARTS,
2563                     ENTERTAINMENT,
2564                     LIFE_STYLE,
2565                     MUSIC,
2566                     PREMIER,
2567                     TECH_SCIENCE,
2568             })
2569             @Retention(RetentionPolicy.SOURCE)
2570             public @interface Genre {}
2571 
2572             /** The genre for Family/Kids. */
2573             public static final String FAMILY_KIDS = "FAMILY_KIDS";
2574 
2575             /** The genre for Sports. */
2576             public static final String SPORTS = "SPORTS";
2577 
2578             /** The genre for Shopping. */
2579             public static final String SHOPPING = "SHOPPING";
2580 
2581             /** The genre for Movies. */
2582             public static final String MOVIES = "MOVIES";
2583 
2584             /** The genre for Comedy. */
2585             public static final String COMEDY = "COMEDY";
2586 
2587             /** The genre for Travel. */
2588             public static final String TRAVEL = "TRAVEL";
2589 
2590             /** The genre for Drama. */
2591             public static final String DRAMA = "DRAMA";
2592 
2593             /** The genre for Education. */
2594             public static final String EDUCATION = "EDUCATION";
2595 
2596             /** The genre for Animal/Wildlife. */
2597             public static final String ANIMAL_WILDLIFE = "ANIMAL_WILDLIFE";
2598 
2599             /** The genre for News. */
2600             public static final String NEWS = "NEWS";
2601 
2602             /** The genre for Gaming. */
2603             public static final String GAMING = "GAMING";
2604 
2605             /** The genre for Arts. */
2606             public static final String ARTS = "ARTS";
2607 
2608             /** The genre for Entertainment. */
2609             public static final String ENTERTAINMENT = "ENTERTAINMENT";
2610 
2611             /** The genre for Life Style. */
2612             public static final String LIFE_STYLE = "LIFE_STYLE";
2613 
2614             /** The genre for Music. */
2615             public static final String MUSIC = "MUSIC";
2616 
2617             /** The genre for Premier. */
2618             public static final String PREMIER = "PREMIER";
2619 
2620             /** The genre for Tech/Science. */
2621             public static final String TECH_SCIENCE = "TECH_SCIENCE";
2622 
2623             private static final ArraySet<String> CANONICAL_GENRES = new ArraySet<>();
2624             static {
2625                 CANONICAL_GENRES.add(FAMILY_KIDS);
2626                 CANONICAL_GENRES.add(SPORTS);
2627                 CANONICAL_GENRES.add(SHOPPING);
2628                 CANONICAL_GENRES.add(MOVIES);
2629                 CANONICAL_GENRES.add(COMEDY);
2630                 CANONICAL_GENRES.add(TRAVEL);
2631                 CANONICAL_GENRES.add(DRAMA);
2632                 CANONICAL_GENRES.add(EDUCATION);
2633                 CANONICAL_GENRES.add(ANIMAL_WILDLIFE);
2634                 CANONICAL_GENRES.add(NEWS);
2635                 CANONICAL_GENRES.add(GAMING);
2636                 CANONICAL_GENRES.add(ARTS);
2637                 CANONICAL_GENRES.add(ENTERTAINMENT);
2638                 CANONICAL_GENRES.add(LIFE_STYLE);
2639                 CANONICAL_GENRES.add(MUSIC);
2640                 CANONICAL_GENRES.add(PREMIER);
2641                 CANONICAL_GENRES.add(TECH_SCIENCE);
2642             }
2643 
2644             private static final char DOUBLE_QUOTE = '"';
2645             private static final char COMMA = ',';
2646             private static final String DELIMITER = ",";
2647 
2648             private static final String[] EMPTY_STRING_ARRAY = new String[0];
2649 
Genres()2650             private Genres() {}
2651 
2652             /**
2653              * Encodes genre strings to a text that can be put into the database.
2654              *
2655              * @param genres Genre strings.
2656              * @return an encoded genre string that can be inserted into the
2657              *         {@link #COLUMN_BROADCAST_GENRE} or {@link #COLUMN_CANONICAL_GENRE} column.
2658              */
encode(@onNull @enre String... genres)2659             public static String encode(@NonNull @Genre String... genres) {
2660                 if (genres == null) {
2661                     // MNC and before will throw a NPE.
2662                     return null;
2663                 }
2664                 StringBuilder sb = new StringBuilder();
2665                 String separator = "";
2666                 for (String genre : genres) {
2667                     sb.append(separator).append(encodeToCsv(genre));
2668                     separator = DELIMITER;
2669                 }
2670                 return sb.toString();
2671             }
2672 
encodeToCsv(String genre)2673             private static String encodeToCsv(String genre) {
2674                 StringBuilder sb = new StringBuilder();
2675                 int length = genre.length();
2676                 for (int i = 0; i < length; ++i) {
2677                     char c = genre.charAt(i);
2678                     switch (c) {
2679                         case DOUBLE_QUOTE:
2680                             sb.append(DOUBLE_QUOTE);
2681                             break;
2682                         case COMMA:
2683                             sb.append(DOUBLE_QUOTE);
2684                             break;
2685                     }
2686                     sb.append(c);
2687                 }
2688                 return sb.toString();
2689             }
2690 
2691             /**
2692              * Decodes the genre strings from the text stored in the database.
2693              *
2694              * @param genres The encoded genre string retrieved from the
2695              *            {@link #COLUMN_BROADCAST_GENRE} or {@link #COLUMN_CANONICAL_GENRE} column.
2696              * @return genre strings.
2697              */
decode(@onNull String genres)2698             public static @Genre String[] decode(@NonNull String genres) {
2699                 if (TextUtils.isEmpty(genres)) {
2700                     // MNC and before will throw a NPE for {@code null} genres.
2701                     return EMPTY_STRING_ARRAY;
2702                 }
2703                 if (genres.indexOf(COMMA) == -1 && genres.indexOf(DOUBLE_QUOTE) == -1) {
2704                     return new String[] {genres.trim()};
2705                 }
2706                 StringBuilder sb = new StringBuilder();
2707                 List<String> results = new ArrayList<>();
2708                 int length = genres.length();
2709                 boolean escape = false;
2710                 for (int i = 0; i < length; ++i) {
2711                     char c = genres.charAt(i);
2712                     switch (c) {
2713                         case DOUBLE_QUOTE:
2714                             if (!escape) {
2715                                 escape = true;
2716                                 continue;
2717                             }
2718                             break;
2719                         case COMMA:
2720                             if (!escape) {
2721                                 String string = sb.toString().trim();
2722                                 if (string.length() > 0) {
2723                                     results.add(string);
2724                                 }
2725                                 sb = new StringBuilder();
2726                                 continue;
2727                             }
2728                             break;
2729                     }
2730                     sb.append(c);
2731                     escape = false;
2732                 }
2733                 String string = sb.toString().trim();
2734                 if (string.length() > 0) {
2735                     results.add(string);
2736                 }
2737                 return results.toArray(new String[results.size()]);
2738             }
2739 
2740             /**
2741              * Returns whether a given text is a canonical genre defined in {@link Genres}.
2742              *
2743              * @param genre The name of genre to be checked.
2744              * @return {@code true} if the genre is canonical, otherwise {@code false}.
2745              */
isCanonical(String genre)2746             public static boolean isCanonical(String genre) {
2747                 return CANONICAL_GENRES.contains(genre);
2748             }
2749         }
2750     }
2751 
2752     /**
2753      * Column definitions for the recorded TV programs table.
2754      *
2755      * <p>By default, the query results will be sorted by {@link #COLUMN_START_TIME_UTC_MILLIS} in
2756      * ascending order.
2757      */
2758     public static final class RecordedPrograms implements BaseTvColumns, ProgramColumns {
2759 
2760         /**
2761          * The content:// style URI for this table.
2762          *
2763          * <p>SQL selection is not supported for {@link ContentResolver#query},
2764          * {@link ContentResolver#update} and {@link ContentResolver#delete} operations.
2765          */
2766         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/"
2767                 + PATH_RECORDED_PROGRAM);
2768 
2769         /** The MIME type of a directory of recorded TV programs. */
2770         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/recorded_program";
2771 
2772         /** The MIME type of a single recorded TV program. */
2773         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/recorded_program";
2774 
2775         /**
2776          * The ID of the TV channel that provides this recorded program.
2777          *
2778          * <p>This is a part of the channel URI and matches to {@link BaseColumns#_ID}.
2779          *
2780          * <p>Type: INTEGER (long)
2781          */
2782         public static final String COLUMN_CHANNEL_ID = "channel_id";
2783 
2784         /**
2785          * The ID of the TV input service that is associated with this recorded program.
2786          *
2787          * <p>Use {@link #buildInputId} to build the ID.
2788          *
2789          * <p>This is a required field.
2790          *
2791          * <p>Type: TEXT
2792          */
2793         public static final String COLUMN_INPUT_ID = "input_id";
2794 
2795         /**
2796          * The start time of the original TV program, in milliseconds since the epoch.
2797          *
2798          * <p>Type: INTEGER (long)
2799          * @see Programs#COLUMN_START_TIME_UTC_MILLIS
2800          */
2801         public static final String COLUMN_START_TIME_UTC_MILLIS =
2802                 Programs.COLUMN_START_TIME_UTC_MILLIS;
2803 
2804         /**
2805          * The end time of the original TV program, in milliseconds since the epoch.
2806          *
2807          * <p>Type: INTEGER (long)
2808          * @see Programs#COLUMN_END_TIME_UTC_MILLIS
2809          */
2810         public static final String COLUMN_END_TIME_UTC_MILLIS = Programs.COLUMN_END_TIME_UTC_MILLIS;
2811 
2812         /**
2813          * The comma-separated genre string of this recorded TV program.
2814          *
2815          * <p>Use the same language appeared in the underlying broadcast standard, if applicable.
2816          * (For example, one can refer to the genre strings used in Genre Descriptor of ATSC A/65 or
2817          * Content Descriptor of ETSI EN 300 468, if appropriate.) Otherwise, leave empty. Use
2818          * {@link Genres#encode Genres.encode()} to create a text that can be stored in this column.
2819          * Use {@link Genres#decode Genres.decode()} to get the broadcast genre strings from the
2820          * text stored in the column.
2821          *
2822          * <p>Type: TEXT
2823          * @see Programs#COLUMN_BROADCAST_GENRE
2824          */
2825         public static final String COLUMN_BROADCAST_GENRE = Programs.COLUMN_BROADCAST_GENRE;
2826 
2827         /**
2828          * The URI of the recording data for this recorded program.
2829          *
2830          * <p>Together with {@link #COLUMN_RECORDING_DATA_BYTES}, applications can use this
2831          * information to manage recording storage. The URI should indicate a file or directory with
2832          * the scheme {@link android.content.ContentResolver#SCHEME_FILE}.
2833          *
2834          * <p>Type: TEXT
2835          * @see #COLUMN_RECORDING_DATA_BYTES
2836          */
2837         public static final String COLUMN_RECORDING_DATA_URI = "recording_data_uri";
2838 
2839         /**
2840          * The data size (in bytes) for this recorded program.
2841          *
2842          * <p>Together with {@link #COLUMN_RECORDING_DATA_URI}, applications can use this
2843          * information to manage recording storage.
2844          *
2845          * <p>Type: INTEGER (long)
2846          * @see #COLUMN_RECORDING_DATA_URI
2847          */
2848         public static final String COLUMN_RECORDING_DATA_BYTES = "recording_data_bytes";
2849 
2850         /**
2851          * The duration (in milliseconds) of this recorded program.
2852          *
2853          * <p>The actual duration of the recorded program can differ from the one calculated by
2854          * {@link #COLUMN_END_TIME_UTC_MILLIS} - {@link #COLUMN_START_TIME_UTC_MILLIS} as program
2855          * recording can be interrupted in the middle for some reason, resulting in a partially
2856          * recorded program, which is still playable.
2857          *
2858          * <p>Type: INTEGER
2859          */
2860         public static final String COLUMN_RECORDING_DURATION_MILLIS = "recording_duration_millis";
2861 
2862         /**
2863          * The expiration time for this recorded program, in milliseconds since the epoch.
2864          *
2865          * <p>Recorded TV programs do not expire by default unless explicitly requested by the user
2866          * or the user allows applications to delete them in order to free up disk space for future
2867          * recording. However, some TV content can have expiration date set by the content provider
2868          * when recorded. This field is used to indicate such a restriction.
2869          *
2870          * <p>Can be empty.
2871          *
2872          * <p>Type: INTEGER (long)
2873          */
2874         public static final String COLUMN_RECORDING_EXPIRE_TIME_UTC_MILLIS =
2875                 "recording_expire_time_utc_millis";
2876 
RecordedPrograms()2877         private RecordedPrograms() {}
2878     }
2879 
2880     /**
2881      * Column definitions for the preview TV programs table.
2882      */
2883     public static final class PreviewPrograms implements BaseTvColumns, ProgramColumns,
2884         PreviewProgramColumns {
2885 
2886         /**
2887          * The content:// style URI for this table.
2888          *
2889          * <p>SQL selection is not supported for {@link ContentResolver#query},
2890          * {@link ContentResolver#update} and {@link ContentResolver#delete} operations.
2891          */
2892         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/"
2893                 + PATH_PREVIEW_PROGRAM);
2894 
2895         /** The MIME type of a directory of preview TV programs. */
2896         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/preview_program";
2897 
2898         /** The MIME type of a single preview TV program. */
2899         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/preview_program";
2900 
2901         /**
2902          * The ID of the TV channel that provides this TV program.
2903          *
2904          * <p>This value cannot be changed once it's set. Trying to modify it will make the update
2905          * fail.
2906          *
2907          * <p>This is a part of the channel URI and matches to {@link BaseColumns#_ID}.
2908          *
2909          * <p>This is a required field.
2910          *
2911          * <p>Type: INTEGER (long)
2912          */
2913         public static final String COLUMN_CHANNEL_ID = "channel_id";
2914 
2915         /**
2916          * The weight of the preview program within the channel.
2917          *
2918          * <p>The UI may choose to show this item in a different position in the channel row.
2919          * A larger weight value means the program is more important than other programs having
2920          * smaller weight values. The value is relevant for the preview programs in the same
2921          * channel. This is only relevant to {@link Channels#TYPE_PREVIEW}.
2922          *
2923          * <p>Can be empty.
2924          *
2925          * <p>Type: INTEGER
2926          */
2927         public static final String COLUMN_WEIGHT = "weight";
2928 
PreviewPrograms()2929         private PreviewPrograms() {}
2930     }
2931 
2932     /**
2933      * Column definitions for the "watch next" TV programs table.
2934      */
2935     public static final class WatchNextPrograms implements BaseTvColumns, ProgramColumns,
2936         PreviewProgramColumns {
2937 
2938         /**
2939          * The content:// style URI for this table.
2940          *
2941          * <p>SQL selection is not supported for {@link ContentResolver#query},
2942          * {@link ContentResolver#update} and {@link ContentResolver#delete} operations.
2943          */
2944         public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/"
2945                 + PATH_WATCH_NEXT_PROGRAM);
2946 
2947         /** The MIME type of a directory of "watch next" TV programs. */
2948         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/watch_next_program";
2949 
2950         /** The MIME type of a single preview TV program. */
2951         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/watch_next_program";
2952 
2953         /** @hide */
2954         @IntDef({
2955                 WATCH_NEXT_TYPE_CONTINUE,
2956                 WATCH_NEXT_TYPE_NEXT,
2957                 WATCH_NEXT_TYPE_NEW,
2958                 WATCH_NEXT_TYPE_WATCHLIST,
2959         })
2960         @Retention(RetentionPolicy.SOURCE)
2961         public @interface WatchNextType {}
2962 
2963         /**
2964          * The watch next type for CONTINUE. Use this type when the user has already watched more
2965          * than 1 minute of this content.
2966          *
2967          * @see #COLUMN_WATCH_NEXT_TYPE
2968          */
2969         public static final int WATCH_NEXT_TYPE_CONTINUE = 0;
2970 
2971         /**
2972          * The watch next type for NEXT. Use this type when the user has watched one or more
2973          * complete episodes from some episodic content, but there remains more than one episode
2974          * remaining or there is one last episode remaining, but it is not “new” in that it was
2975          * released before the user started watching the show.
2976          *
2977          * @see #COLUMN_WATCH_NEXT_TYPE
2978          */
2979         public static final int WATCH_NEXT_TYPE_NEXT = 1;
2980 
2981         /**
2982          * The watch next type for NEW. Use this type when the user had watched all of the available
2983          * episodes from some episodic content, but a new episode became available since the user
2984          * started watching the first episode and now there is exactly one unwatched episode. This
2985          * could also work for recorded events in a series e.g. soccer matches or football games.
2986          *
2987          * @see #COLUMN_WATCH_NEXT_TYPE
2988          */
2989         public static final int WATCH_NEXT_TYPE_NEW = 2;
2990 
2991         /**
2992          * The watch next type for WATCHLIST. Use this type when the user has elected to explicitly
2993          * add a movie, event or series to a “watchlist” as a manual way of curating what they
2994          * want to watch next.
2995          *
2996          * @see #COLUMN_WATCH_NEXT_TYPE
2997          */
2998         public static final int WATCH_NEXT_TYPE_WATCHLIST = 3;
2999 
3000         /**
3001          * The "watch next" type of this program content.
3002          *
3003          * <p>The value should match one of the followings:
3004          * {@link #WATCH_NEXT_TYPE_CONTINUE},
3005          * {@link #WATCH_NEXT_TYPE_NEXT},
3006          * {@link #WATCH_NEXT_TYPE_NEW}, and
3007          * {@link #WATCH_NEXT_TYPE_WATCHLIST}.
3008          *
3009          * <p>This is a required field.
3010          *
3011          * <p>Type: INTEGER
3012          */
3013         public static final String COLUMN_WATCH_NEXT_TYPE = "watch_next_type";
3014 
3015         /**
3016          * The last UTC time that the user engaged in this TV program, in milliseconds since the
3017          * epoch. This is a hint for the application that is used for ordering of "watch next"
3018          * programs.
3019          *
3020          * <p>The meaning of the value varies depending on the {@link #COLUMN_WATCH_NEXT_TYPE}:
3021          * <ul>
3022          *     <li>{@link #WATCH_NEXT_TYPE_CONTINUE}: the date that the user was last watching the
3023          *     content.</li>
3024          *     <li>{@link #WATCH_NEXT_TYPE_NEXT}: the date of the last episode watched.</li>
3025          *     <li>{@link #WATCH_NEXT_TYPE_NEW}: the release date of the new episode.</li>
3026          *     <li>{@link #WATCH_NEXT_TYPE_WATCHLIST}: the date the item was added to the Watchlist.
3027          *     </li>
3028          * </ul>
3029          *
3030          * <p>This is a required field.
3031          *
3032          * <p>Type: INTEGER (long)
3033          */
3034         public static final String COLUMN_LAST_ENGAGEMENT_TIME_UTC_MILLIS =
3035                 "last_engagement_time_utc_millis";
3036 
WatchNextPrograms()3037         private WatchNextPrograms() {}
3038     }
3039 
3040     /**
3041      * Column definitions for the TV programs that the user watched. Applications do not have access
3042      * to this table.
3043      *
3044      * <p>By default, the query results will be sorted by
3045      * {@link WatchedPrograms#COLUMN_WATCH_START_TIME_UTC_MILLIS} in descending order.
3046      * @hide
3047      */
3048     @SystemApi
3049     public static final class WatchedPrograms implements BaseTvColumns {
3050 
3051         /** The content:// style URI for this table. */
3052         public static final Uri CONTENT_URI =
3053                 Uri.parse("content://" + AUTHORITY + "/watched_program");
3054 
3055         /** The MIME type of a directory of watched programs. */
3056         public static final String CONTENT_TYPE = "vnd.android.cursor.dir/watched_program";
3057 
3058         /** The MIME type of a single item in this table. */
3059         public static final String CONTENT_ITEM_TYPE = "vnd.android.cursor.item/watched_program";
3060 
3061         /**
3062          * The UTC time that the user started watching this TV program, in milliseconds since the
3063          * epoch.
3064          *
3065          * <p>Type: INTEGER (long)
3066          */
3067         public static final String COLUMN_WATCH_START_TIME_UTC_MILLIS =
3068                 "watch_start_time_utc_millis";
3069 
3070         /**
3071          * The UTC time that the user stopped watching this TV program, in milliseconds since the
3072          * epoch.
3073          *
3074          * <p>Type: INTEGER (long)
3075          */
3076         public static final String COLUMN_WATCH_END_TIME_UTC_MILLIS = "watch_end_time_utc_millis";
3077 
3078         /**
3079          * The ID of the TV channel that provides this TV program.
3080          *
3081          * <p>This is a required field.
3082          *
3083          * <p>Type: INTEGER (long)
3084          */
3085         public static final String COLUMN_CHANNEL_ID = "channel_id";
3086 
3087         /**
3088          * The title of this TV program.
3089          *
3090          * <p>Type: TEXT
3091          */
3092         public static final String COLUMN_TITLE = "title";
3093 
3094         /**
3095          * The start time of this TV program, in milliseconds since the epoch.
3096          *
3097          * <p>Type: INTEGER (long)
3098          */
3099         public static final String COLUMN_START_TIME_UTC_MILLIS = "start_time_utc_millis";
3100 
3101         /**
3102          * The end time of this TV program, in milliseconds since the epoch.
3103          *
3104          * <p>Type: INTEGER (long)
3105          */
3106         public static final String COLUMN_END_TIME_UTC_MILLIS = "end_time_utc_millis";
3107 
3108         /**
3109          * The description of this TV program.
3110          *
3111          * <p>Type: TEXT
3112          */
3113         public static final String COLUMN_DESCRIPTION = "description";
3114 
3115         /**
3116          * Extra parameters given to {@link TvInputService.Session#tune(Uri, android.os.Bundle)
3117          * TvInputService.Session.tune(Uri, android.os.Bundle)} when tuning to the channel that
3118          * provides this TV program. (Used internally.)
3119          *
3120          * <p>This column contains an encoded string that represents comma-separated key-value pairs of
3121          * the tune parameters. (Ex. "[key1]=[value1], [key2]=[value2]"). '%' is used as an escape
3122          * character for '%', '=', and ','.
3123          *
3124          * <p>Type: TEXT
3125          */
3126         public static final String COLUMN_INTERNAL_TUNE_PARAMS = "tune_params";
3127 
3128         /**
3129          * The session token of this TV program. (Used internally.)
3130          *
3131          * <p>This contains a String representation of {@link IBinder} for
3132          * {@link TvInputService.Session} that provides the current TV program. It is used
3133          * internally to distinguish watched programs entries from different TV input sessions.
3134          *
3135          * <p>Type: TEXT
3136          */
3137         public static final String COLUMN_INTERNAL_SESSION_TOKEN = "session_token";
3138 
WatchedPrograms()3139         private WatchedPrograms() {}
3140     }
3141 }
3142