MediaCodecList.java revision c06bb7f5b9c6be9d121e3f5b4ee7cd31c99f6879
1917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul/* 2917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * Copyright (C) 2012 The Android Open Source Project 3917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * 4917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * Licensed under the Apache License, Version 2.0 (the "License"); 5917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * you may not use this file except in compliance with the License. 6917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * You may obtain a copy of the License at 7917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * 8917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * http://www.apache.org/licenses/LICENSE-2.0 9917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * 10917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * Unless required by applicable law or agreed to in writing, software 11917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * distributed under the License is distributed on an "AS IS" BASIS, 12917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * See the License for the specific language governing permissions and 14917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * limitations under the License. 15917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul */ 16917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul 17917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgulpackage android.media; 18917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul 19917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgulimport android.media.MediaCodecInfo; 20917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul 21917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul/** 22917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * Allows you to enumerate available codecs, each specified as a {@link MediaCodecInfo} object, 23917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * find a codec supporting a given format and query the capabilities 24917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * of a given codec. 25917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * <p>See {@link MediaCodecInfo} for sample usage. 26917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul */ 27917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgulfinal public class MediaCodecList { 28917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul /** 29917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul * Count the number of available codecs. 30917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul */ 31917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul public static native final int getCodecCount(); 32917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul 33917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul public static final MediaCodecInfo getCodecInfoAt(int index) { 34917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul if (index < 0 || index > getCodecCount()) { 35917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul throw new IllegalArgumentException(); 36917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul } 37917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul 38917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul return new MediaCodecInfo(index); 39917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul } 40917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul 41917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul /* package private */ static native final String getCodecName(int index); 42917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul 43917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul /* package private */ static native final boolean isEncoder(int index); 44917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul 45917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul /* package private */ static native final String[] getSupportedTypes(int index); 46917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul 47917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul /* package private */ static native final MediaCodecInfo.CodecCapabilities 48917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul getCodecCapabilities(int index, String type); 49917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul 50917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul /* package private */ static native final int findCodecByName(String codec); 51917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul 52917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul private static native final void native_init(); 53917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul 54917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul private MediaCodecList() {} 55917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul 56917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul static { 57917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul System.loadLibrary("media_jni"); 58917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul native_init(); 59917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul } 60917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul} 61917cb222329ee8c035c3ffaf947e4265761b9367Piotr Gurgul