1/* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package android.media; 18 19import android.media.MediaCodecInfo; 20 21/** 22 * MediaCodecList class can be used to enumerate available codecs, 23 * find a codec supporting a given format and query the capabilities 24 * of a given codec. 25 */ 26final public class MediaCodecList { 27 /** 28 * Count the number of available codecs. 29 */ 30 public static native final int getCodecCount(); 31 32 public static final MediaCodecInfo getCodecInfoAt(int index) { 33 if (index < 0 || index > getCodecCount()) { 34 throw new IllegalArgumentException(); 35 } 36 37 return new MediaCodecInfo(index); 38 } 39 40 /* package private */ static native final String getCodecName(int index); 41 42 /* package private */ static native final boolean isEncoder(int index); 43 44 /* package private */ static native final String[] getSupportedTypes(int index); 45 46 /* package private */ static native final MediaCodecInfo.CodecCapabilities 47 getCodecCapabilities(int index, String type); 48 49 private static native final void native_init(); 50 51 private MediaCodecList() {} 52 53 static { 54 System.loadLibrary("media_jni"); 55 native_init(); 56 } 57} 58