NewPipe/app/src/main/java/org/schabi/newpipe/player/resolver/AudioPlaybackResolver.java

104 lines
3.6 KiB
Java

package org.schabi.newpipe.player.resolver;
import static org.schabi.newpipe.util.ListHelper.getFilteredAudioStreams;
import static org.schabi.newpipe.util.ListHelper.getPlayableStreams;
import android.content.Context;
import android.util.Log;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import com.google.android.exoplayer2.source.MediaSource;
import org.schabi.newpipe.extractor.stream.AudioStream;
import org.schabi.newpipe.extractor.stream.Stream;
import org.schabi.newpipe.extractor.stream.StreamInfo;
import org.schabi.newpipe.extractor.stream.VideoStream;
import org.schabi.newpipe.player.helper.PlayerDataSource;
import org.schabi.newpipe.player.mediaitem.MediaItemTag;
import org.schabi.newpipe.player.mediaitem.StreamInfoTag;
import org.schabi.newpipe.util.ListHelper;
import java.util.List;
public class AudioPlaybackResolver implements PlaybackResolver {
private static final String TAG = AudioPlaybackResolver.class.getSimpleName();
@NonNull
private final Context context;
@NonNull
private final PlayerDataSource dataSource;
@Nullable
private String audioTrack;
public AudioPlaybackResolver(@NonNull final Context context,
@NonNull final PlayerDataSource dataSource) {
this.context = context;
this.dataSource = dataSource;
}
/**
* Get a media source providing audio. If a service has no separate {@link AudioStream}s we
* use a video stream as audio source to support audio background playback.
*
* @param info of the stream
* @return the audio source to use or null if none could be found
*/
@Override
@Nullable
public MediaSource resolve(@NonNull final StreamInfo info) {
final MediaSource liveSource = PlaybackResolver.maybeBuildLiveMediaSource(dataSource, info);
if (liveSource != null) {
return liveSource;
}
final List<AudioStream> audioStreams =
getFilteredAudioStreams(context, info.getAudioStreams());
final Stream stream;
final MediaItemTag tag;
if (!audioStreams.isEmpty()) {
final int audioIndex =
ListHelper.getAudioFormatIndex(context, audioStreams, audioTrack);
stream = getStreamForIndex(audioIndex, audioStreams);
tag = StreamInfoTag.of(info, audioStreams, audioIndex);
} else {
final List<VideoStream> videoStreams =
getPlayableStreams(info.getVideoStreams(), info.getServiceId());
if (!videoStreams.isEmpty()) {
final int index = ListHelper.getDefaultResolutionIndex(context, videoStreams);
stream = getStreamForIndex(index, videoStreams);
tag = StreamInfoTag.of(info);
} else {
return null;
}
}
try {
return PlaybackResolver.buildMediaSource(
dataSource, stream, info, PlaybackResolver.cacheKeyOf(info, stream), tag);
} catch (final ResolverException e) {
Log.e(TAG, "Unable to create audio source", e);
return null;
}
}
@Nullable
Stream getStreamForIndex(final int index, @NonNull final List<? extends Stream> streams) {
if (index >= 0 && index < streams.size()) {
return streams.get(index);
}
return null;
}
@Nullable
public String getAudioTrack() {
return audioTrack;
}
public void setAudioTrack(@Nullable final String audioLanguage) {
this.audioTrack = audioLanguage;
}
}