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129 lines
4.4 KiB
129 lines
4.4 KiB
/* Copyright 2017 Andrew Dawson
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*
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* This file is a part of Tusky.
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Tusky is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with Tusky; if not,
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* see <http://www.gnu.org/licenses>. */
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package com.keylesspalace.tusky.util;
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import android.content.ContentResolver;
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import android.content.Context;
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import android.database.Cursor;
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import android.graphics.Bitmap;
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import android.graphics.BitmapFactory;
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import android.media.MediaMetadataRetriever;
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import android.media.ThumbnailUtils;
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import android.net.Uri;
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import android.provider.OpenableColumns;
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import android.support.annotation.NonNull;
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import android.support.annotation.Nullable;
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import android.support.annotation.Px;
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import java.io.ByteArrayOutputStream;
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.io.InputStream;
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/**
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* Class who will have all the code link with Media
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* <p>
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* Motivation : try to keep the ComposeActivity "smaller" and make modular method
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*/
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public class MediaUtils {
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public static final int MEDIA_SIZE_UNKNOWN = -1;
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/**
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* Copies the entire contents of the given stream into a byte array and returns it. Beware of
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* OutOfMemoryError for streams of unknown size.
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*/
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@Nullable
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public static byte[] inputStreamGetBytes(InputStream stream) {
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ByteArrayOutputStream buffer = new ByteArrayOutputStream();
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int read;
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byte[] data = new byte[16384];
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try {
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while ((read = stream.read(data, 0, data.length)) != -1) {
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buffer.write(data, 0, read);
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}
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buffer.flush();
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} catch (IOException e) {
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return null;
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}
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return buffer.toByteArray();
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}
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/**
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* Fetches the size of the media represented by the given URI, assuming it is openable and
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* the ContentResolver is able to resolve it.
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*
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* @return the size of the media or {@link MediaUtils#MEDIA_SIZE_UNKNOWN}
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*/
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public static long getMediaSize(@NonNull ContentResolver contentResolver, @Nullable Uri uri) {
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if(uri == null) return MEDIA_SIZE_UNKNOWN;
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long mediaSize;
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Cursor cursor;
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try {
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cursor = contentResolver.query(uri, null, null, null, null);
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} catch (SecurityException e) {
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return MEDIA_SIZE_UNKNOWN;
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}
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if (cursor != null) {
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int sizeIndex = cursor.getColumnIndex(OpenableColumns.SIZE);
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cursor.moveToFirst();
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mediaSize = cursor.getLong(sizeIndex);
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cursor.close();
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} else {
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mediaSize = MEDIA_SIZE_UNKNOWN;
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}
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return mediaSize;
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}
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@Nullable
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public static Bitmap getImageThumbnail(ContentResolver contentResolver, Uri uri,
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@Px int thumbnailSize) {
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InputStream stream;
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try {
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stream = contentResolver.openInputStream(uri);
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} catch (FileNotFoundException e) {
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return null;
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}
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Bitmap source = BitmapFactory.decodeStream(stream);
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if (source == null) {
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IOUtils.closeQuietly(stream);
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return null;
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}
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Bitmap bitmap = ThumbnailUtils.extractThumbnail(source, thumbnailSize, thumbnailSize);
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source.recycle();
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try {
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if (stream != null) {
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stream.close();
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}
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} catch (IOException e) {
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bitmap.recycle();
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return null;
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}
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return bitmap;
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}
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@Nullable
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public static Bitmap getVideoThumbnail(Context context, Uri uri, @Px int thumbnailSize) {
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MediaMetadataRetriever retriever = new MediaMetadataRetriever();
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retriever.setDataSource(context, uri);
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Bitmap source = retriever.getFrameAtTime();
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if (source == null) {
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return null;
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}
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Bitmap bitmap = ThumbnailUtils.extractThumbnail(source, thumbnailSize, thumbnailSize);
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source.recycle();
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return bitmap;
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}
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}
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