/* * Copyright (C) 2009 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.mediaframeworktest; import android.media.MediaRecorder; import android.media.EncoderCapabilities; import android.media.EncoderCapabilities.VideoEncoderCap; import android.media.EncoderCapabilities.AudioEncoderCap; import android.media.DecoderCapabilities; import android.media.DecoderCapabilities.VideoDecoder; import android.media.DecoderCapabilities.AudioDecoder; import android.os.SystemProperties; import java.util.List; import java.util.HashMap; public class MediaProfileReader { private static final List videoDecoders = DecoderCapabilities.getVideoDecoders(); private static final List audioDecoders = DecoderCapabilities.getAudioDecoders(); private static final List videoEncoders = EncoderCapabilities.getVideoEncoders(); private static final List audioEncoders = EncoderCapabilities.getAudioEncoders(); private static final HashMap videoEncoderMap = new HashMap(); private static final HashMap audioEncoderMap = new HashMap(); static { initAudioEncoderMap(); initVideoEncoderMap(); }; public static List getVideoEncoders() { return videoEncoders; } public static List getAudioEncoders() { return audioEncoders; } public static String getDeviceType() { // push all the property into one big table String s; s = SystemProperties.get("ro.product.name"); return s; } public static boolean getWMAEnable() { for (AudioDecoder decoder: audioDecoders) { if (decoder == AudioDecoder.AUDIO_DECODER_WMA) { return true; } } return false; } public static boolean getWMVEnable(){ for (VideoDecoder decoder: videoDecoders) { if (decoder == VideoDecoder.VIDEO_DECODER_WMV) { return true; } } return false; } public static String getVideoCodecName(int videoEncoder) { if (videoEncoder != MediaRecorder.VideoEncoder.H263 && videoEncoder != MediaRecorder.VideoEncoder.H264 && videoEncoder != MediaRecorder.VideoEncoder.MPEG_4_SP) { throw new IllegalArgumentException("Unsupported video encoder " + videoEncoder); } return videoEncoderMap.get(videoEncoder); } public static String getAudioCodecName(int audioEncoder) { if (audioEncoder != MediaRecorder.AudioEncoder.AMR_NB && audioEncoder != MediaRecorder.AudioEncoder.AMR_WB && audioEncoder != MediaRecorder.AudioEncoder.AAC && audioEncoder != MediaRecorder.AudioEncoder.HE_AAC) { throw new IllegalArgumentException("Unsupported audio encodeer " + audioEncoder); } return audioEncoderMap.get(audioEncoder); } public static int getMinFrameRateForCodec(int codec) { return getMinOrMaxFrameRateForCodec(codec, false); } public static int getMaxFrameRateForCodec(int codec) { return getMinOrMaxFrameRateForCodec(codec, true); } private static int getMinOrMaxFrameRateForCodec(int codec, boolean max) { for (VideoEncoderCap cap: videoEncoders) { if (cap.mCodec == codec) { if (max) return cap.mMaxFrameRate; else return cap.mMinFrameRate; } } // Should never reach here throw new IllegalArgumentException("Unsupported video codec " + codec); } private MediaProfileReader() {} // Don't call me private static void initVideoEncoderMap() { // video encoders videoEncoderMap.put(MediaRecorder.VideoEncoder.H263, "h263"); videoEncoderMap.put(MediaRecorder.VideoEncoder.H264, "h264"); videoEncoderMap.put(MediaRecorder.VideoEncoder.MPEG_4_SP, "m4v"); } private static void initAudioEncoderMap() { // audio encoders audioEncoderMap.put(MediaRecorder.AudioEncoder.AMR_NB, "amrnb"); audioEncoderMap.put(MediaRecorder.AudioEncoder.AMR_WB, "amrwb"); audioEncoderMap.put(MediaRecorder.AudioEncoder.AAC, "aac"); audioEncoderMap.put(MediaRecorder.AudioEncoder.HE_AAC, "heaac"); } }