diff options
Diffstat (limited to 'src/com/android/messaging/util/MediaMetadataRetrieverWrapper.java')
-rw-r--r-- | src/com/android/messaging/util/MediaMetadataRetrieverWrapper.java | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/com/android/messaging/util/MediaMetadataRetrieverWrapper.java b/src/com/android/messaging/util/MediaMetadataRetrieverWrapper.java new file mode 100644 index 0000000..b1078d1 --- /dev/null +++ b/src/com/android/messaging/util/MediaMetadataRetrieverWrapper.java @@ -0,0 +1,81 @@ +/* + * 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); + } + } +} |