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      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 
     17 #ifndef SOFT_AAC_ENCODER_H_
     18 
     19 #define SOFT_AAC_ENCODER_H_
     20 
     21 #include "SimpleSoftOMXComponent.h"
     22 
     23 struct VO_AUDIO_CODECAPI;
     24 struct VO_MEM_OPERATOR;
     25 
     26 namespace android {
     27 
     28 struct SoftAACEncoder : public SimpleSoftOMXComponent {
     29     SoftAACEncoder(
     30             const char *name,
     31             const OMX_CALLBACKTYPE *callbacks,
     32             OMX_PTR appData,
     33             OMX_COMPONENTTYPE **component);
     34 
     35 protected:
     36     virtual ~SoftAACEncoder();
     37 
     38     virtual OMX_ERRORTYPE internalGetParameter(
     39             OMX_INDEXTYPE index, OMX_PTR params);
     40 
     41     virtual OMX_ERRORTYPE internalSetParameter(
     42             OMX_INDEXTYPE index, const OMX_PTR params);
     43 
     44     virtual void onQueueFilled(OMX_U32 portIndex);
     45 
     46 private:
     47     enum {
     48         kNumBuffers             = 4,
     49         kNumSamplesPerFrame     = 1024,
     50     };
     51 
     52     void *mEncoderHandle;
     53     VO_AUDIO_CODECAPI *mApiHandle;
     54     VO_MEM_OPERATOR  *mMemOperator;
     55 
     56     OMX_U32 mNumChannels;
     57     OMX_U32 mSampleRate;
     58     OMX_U32 mBitRate;
     59 
     60     bool mSentCodecSpecificData;
     61     size_t mInputSize;
     62     int16_t *mInputFrame;
     63     int64_t mInputTimeUs;
     64 
     65     bool mSawInputEOS;
     66 
     67     uint8_t mAudioSpecificConfigData[2];
     68 
     69     bool mSignalledError;
     70 
     71     void initPorts();
     72     status_t initEncoder();
     73 
     74     status_t setAudioSpecificConfigData();
     75     status_t setAudioParams();
     76 
     77     DISALLOW_EVIL_CONSTRUCTORS(SoftAACEncoder);
     78 };
     79 
     80 }  // namespace android
     81 
     82 #endif  // SOFT_AAC_ENCODER_H_
     83