/*
* Copyright (C) 2019 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package androidx.media3.cast;
import android.net.Uri;
import androidx.annotation.Nullable;
import androidx.media3.common.C;
import androidx.media3.common.MediaItem;
import androidx.media3.common.util.Assertions;
import androidx.media3.common.util.UnstableApi;
import com.google.android.gms.cast.MediaInfo;
import com.google.android.gms.cast.MediaMetadata;
import com.google.android.gms.cast.MediaQueueItem;
import java.util.HashMap;
import java.util.Iterator;
import java.util.UUID;
import org.json.JSONException;
import org.json.JSONObject;
/** Default {@link MediaItemConverter} implementation. */
@UnstableApi
public final class DefaultMediaItemConverter implements MediaItemConverter {
private static final String KEY_MEDIA_ITEM = "mediaItem";
private static final String KEY_PLAYER_CONFIG = "exoPlayerConfig";
private static final String KEY_URI = "uri";
private static final String KEY_TITLE = "title";
private static final String KEY_MIME_TYPE = "mimeType";
private static final String KEY_DRM_CONFIGURATION = "drmConfiguration";
private static final String KEY_UUID = "uuid";
private static final String KEY_LICENSE_URI = "licenseUri";
private static final String KEY_REQUEST_HEADERS = "requestHeaders";
@Override
public MediaItem toMediaItem(MediaQueueItem mediaQueueItem) {
// `item` came from `toMediaQueueItem()` so the custom JSON data must be set.
MediaInfo mediaInfo = mediaQueueItem.getMedia();
Assertions.checkNotNull(mediaInfo);
return getMediaItem(Assertions.checkNotNull(mediaInfo.getCustomData()));
}
@Override
public MediaQueueItem toMediaQueueItem(MediaItem mediaItem) {
Assertions.checkNotNull(mediaItem.localConfiguration);
if (mediaItem.localConfiguration.mimeType == null) {
throw new IllegalArgumentException("The item must specify its mimeType");
}
MediaMetadata metadata = new MediaMetadata(MediaMetadata.MEDIA_TYPE_MOVIE);
if (mediaItem.mediaMetadata.title != null) {
metadata.putString(MediaMetadata.KEY_TITLE, mediaItem.mediaMetadata.title.toString());
}
MediaInfo mediaInfo =
new MediaInfo.Builder(mediaItem.localConfiguration.uri.toString())
.setStreamType(MediaInfo.STREAM_TYPE_BUFFERED)
.setContentType(mediaItem.localConfiguration.mimeType)
.setMetadata(metadata)
.setCustomData(getCustomData(mediaItem))
.build();
return new MediaQueueItem.Builder(mediaInfo).build();
}
// Deserialization.
private static MediaItem getMediaItem(JSONObject customData) {
try {
JSONObject mediaItemJson = customData.getJSONObject(KEY_MEDIA_ITEM);
MediaItem.Builder builder = new MediaItem.Builder();
builder.setUri(Uri.parse(mediaItemJson.getString(KEY_URI)));
if (mediaItemJson.has(KEY_TITLE)) {
androidx.media3.common.MediaMetadata mediaMetadata =
new androidx.media3.common.MediaMetadata.Builder()
.setTitle(mediaItemJson.getString(KEY_TITLE))
.build();
builder.setMediaMetadata(mediaMetadata);
}
if (mediaItemJson.has(KEY_MIME_TYPE)) {
builder.setMimeType(mediaItemJson.getString(KEY_MIME_TYPE));
}
if (mediaItemJson.has(KEY_DRM_CONFIGURATION)) {
populateDrmConfiguration(mediaItemJson.getJSONObject(KEY_DRM_CONFIGURATION), builder);
}
return builder.build();
} catch (JSONException e) {
throw new RuntimeException(e);
}
}
private static void populateDrmConfiguration(JSONObject json, MediaItem.Builder mediaItem)
throws JSONException {
MediaItem.DrmConfiguration.Builder drmConfiguration =
new MediaItem.DrmConfiguration.Builder(UUID.fromString(json.getString(KEY_UUID)))
.setLicenseUri(json.getString(KEY_LICENSE_URI));
JSONObject requestHeadersJson = json.getJSONObject(KEY_REQUEST_HEADERS);
HashMap<String, String> requestHeaders = new HashMap<>();
for (Iterator<String> iterator = requestHeadersJson.keys(); iterator.hasNext(); ) {
String key = iterator.next();
requestHeaders.put(key, requestHeadersJson.getString(key));
}
drmConfiguration.setLicenseRequestHeaders(requestHeaders);
mediaItem.setDrmConfiguration(drmConfiguration.build());
}
// Serialization.
private static JSONObject getCustomData(MediaItem mediaItem) {
JSONObject json = new JSONObject();
try {
json.put(KEY_MEDIA_ITEM, getMediaItemJson(mediaItem));
@Nullable JSONObject playerConfigJson = getPlayerConfigJson(mediaItem);
if (playerConfigJson != null) {
json.put(KEY_PLAYER_CONFIG, playerConfigJson);
}
} catch (JSONException e) {
throw new RuntimeException(e);
}
return json;
}
private static JSONObject getMediaItemJson(MediaItem mediaItem) throws JSONException {
Assertions.checkNotNull(mediaItem.localConfiguration);
JSONObject json = new JSONObject();
json.put(KEY_TITLE, mediaItem.mediaMetadata.title);
json.put(KEY_URI, mediaItem.localConfiguration.uri.toString());
json.put(KEY_MIME_TYPE, mediaItem.localConfiguration.mimeType);
if (mediaItem.localConfiguration.drmConfiguration != null) {
json.put(
KEY_DRM_CONFIGURATION,
getDrmConfigurationJson(mediaItem.localConfiguration.drmConfiguration));
}
return json;
}
private static JSONObject getDrmConfigurationJson(MediaItem.DrmConfiguration drmConfiguration)
throws JSONException {
JSONObject json = new JSONObject();
json.put(KEY_UUID, drmConfiguration.scheme);
json.put(KEY_LICENSE_URI, drmConfiguration.licenseUri);
json.put(KEY_REQUEST_HEADERS, new JSONObject(drmConfiguration.licenseRequestHeaders));
return json;
}
@Nullable
private static JSONObject getPlayerConfigJson(MediaItem mediaItem) throws JSONException {
if (mediaItem.localConfiguration == null
|| mediaItem.localConfiguration.drmConfiguration == null) {
return null;
}
MediaItem.DrmConfiguration drmConfiguration = mediaItem.localConfiguration.drmConfiguration;
String drmScheme;
if (C.WIDEVINE_UUID.equals(drmConfiguration.scheme)) {
drmScheme = "widevine";
} else if (C.PLAYREADY_UUID.equals(drmConfiguration.scheme)) {
drmScheme = "playready";
} else {
return null;
}
JSONObject playerConfigJson = new JSONObject();
playerConfigJson.put("withCredentials", false);
playerConfigJson.put("protectionSystem", drmScheme);
if (drmConfiguration.licenseUri != null) {
playerConfigJson.put("licenseUrl", drmConfiguration.licenseUri);
}
if (!drmConfiguration.licenseRequestHeaders.isEmpty()) {
playerConfigJson.put("headers", new JSONObject(drmConfiguration.licenseRequestHeaders));
}
return playerConfigJson;
}
}