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package de.danoeh.antennapod.model.playback;
import android.text.TextUtils;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Set;
public enum MediaType {
AUDIO, VIDEO, UNKNOWN;
private static final Set<String> AUDIO_APPLICATION_MIME_STRINGS = new HashSet<>(Arrays.asList(
"application/ogg",
"application/opus",
"application/x-flac"
));
// based on https://developer.android.com/guide/topics/media/media-formats
static final Set<String> AUDIO_FILE_EXTENSIONS = new HashSet<>(Arrays.asList(
"3gp", "aac", "amr", "flac", "imy", "m4a", "mid", "mkv", "mp3", "mp4", "mxmf", "oga",
"ogg", "ogx", "opus", "ota", "rtttl", "rtx", "wav", "xmf"
));
static final Set<String> VIDEO_FILE_EXTENSIONS = new HashSet<>(Arrays.asList(
"3gp", "mkv", "mp4", "ogg", "ogv", "ogx", "webm"
));
public static MediaType fromMimeType(String mimeType) {
if (TextUtils.isEmpty(mimeType)) {
return MediaType.UNKNOWN;
} else if (mimeType.startsWith("audio")) {
return MediaType.AUDIO;
} else if (mimeType.startsWith("video")) {
return MediaType.VIDEO;
} else if (AUDIO_APPLICATION_MIME_STRINGS.contains(mimeType)) {
return MediaType.AUDIO;
}
return MediaType.UNKNOWN;
}
/**
* @param extensionWithoutDot the file extension (suffix) without the dot
* @return the {@link MediaType} that likely corresponds to the extension. However, since the
* extension is not always enough to determine whether a file is an audio or video (3gp
* can be both, for example), this may not be correct. As a result, where possible,
* {@link #fromMimeType(String) fromMimeType} should always be tried first.
*/
public static MediaType fromFileExtension(String extensionWithoutDot) {
if (AUDIO_FILE_EXTENSIONS.contains(extensionWithoutDot)) {
return MediaType.AUDIO;
} else if (VIDEO_FILE_EXTENSIONS.contains(extensionWithoutDot)) {
return MediaType.VIDEO;
}
return MediaType.UNKNOWN;
}
}
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