find Media Decoder - Android java.lang

Android examples for java.lang:String Unicode

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Description

find Media Decoder

Demo Code

/*//  w w w. j  a v a2 s.co  m
 * Copyright (C) 2014 Sony Mobile Communications Inc.
 *
 * 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.
 */
import android.annotation.TargetApi;
import android.media.MediaCodecInfo;
import android.media.MediaCodecList;
import android.os.Build;
import android.util.Log;

public class Main {
  private static final boolean LOGS_ENABLED = false;
  private static final String TAG = "MediaCodecHelper";

  public static String findDecoder(String mimeType, boolean requireSecure,
      MediaCodecInfo[] codecInfo) throws IllegalArgumentException {

    if (codecInfo != null && codecInfo.length == 0) {
      throw new IllegalArgumentException();
    }

    String name = findDecoderKitKat(mimeType, requireSecure, codecInfo);

    if (name == null) {
      if (LOGS_ENABLED)
        Log.e(TAG, "No codec found for type: " + mimeType + ", secure: "
            + requireSecure);
      throw new IllegalArgumentException();
    }

    return name;
  }

  @SuppressWarnings("deprecation")
  @TargetApi(Build.VERSION_CODES.KITKAT)
  private static String findDecoderKitKat(String mimeType,
      boolean requireSecure, MediaCodecInfo[] codecInfo) {
    int count = MediaCodecList.getCodecCount();

    for (int i = 0; i < count; i++) {
      MediaCodecInfo info = MediaCodecList.getCodecInfoAt(i);

      if (!info.isEncoder()) {
        String[] supportedTypes = info.getSupportedTypes();

        for (int j = 0; j < supportedTypes.length; j++) {
          if (supportedTypes[j].equalsIgnoreCase(mimeType)) {
            String name = info.getName();

            if (requireSecure) {
              name += ".secure";
            }

            if (codecInfo != null) {
              codecInfo[0] = info;
            }

            return name;
          }
        }
      }
    }

    return null;
  }
}

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