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/*
* Copyright (C) 2015 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 com.android.messaging.util;
import android.content.ContentResolver;
import android.content.res.AssetFileDescriptor;
import android.graphics.Bitmap;
import android.media.MediaMetadataRetriever;
import android.net.Uri;
import android.text.TextUtils;
import com.android.messaging.Factory;
import java.io.IOException;
/**
* Convenience wrapper for {@link MediaMetadataRetriever} to help with its eccentric error handling.
*/
public class MediaMetadataRetrieverWrapper {
private final MediaMetadataRetriever mRetriever = new MediaMetadataRetriever();
public MediaMetadataRetrieverWrapper() {
}
public void setDataSource(Uri uri) throws IOException {
ContentResolver resolver = Factory.get().getApplicationContext().getContentResolver();
AssetFileDescriptor fd = resolver.openAssetFileDescriptor(uri, "r");
if (fd == null) {
throw new IOException("openAssetFileDescriptor returned null for " + uri);
}
try {
mRetriever.setDataSource(fd.getFileDescriptor());
} catch (RuntimeException e) {
release();
throw new IOException(e);
} finally {
fd.close();
}
}
public int extractInteger(final int key, final int defaultValue) {
final String s = mRetriever.extractMetadata(key);
if (TextUtils.isEmpty(s)) {
return defaultValue;
}
return Integer.parseInt(s);
}
public String extractMetadata(final int key) {
return mRetriever.extractMetadata(key);
}
public Bitmap getFrameAtTime() {
return mRetriever.getFrameAtTime();
}
public Bitmap getFrameAtTime(final long timeUs) {
return mRetriever.getFrameAtTime(timeUs);
}
public void release() {
try {
mRetriever.release();
} catch (RuntimeException e) {
LogUtil.e(LogUtil.BUGLE_TAG, "MediaMetadataRetriever.release failed", e);
}
}
}