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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_AMRNB_ENCODER_H_
     18 
     19 #define SOFT_AMRNB_ENCODER_H_
     20 
     21 #include "SimpleSoftOMXComponent.h"
     22 
     23 namespace android {
     24 
     25 struct SoftAMRNBEncoder : public SimpleSoftOMXComponent {
     26     SoftAMRNBEncoder(
     27             const char *name,
     28             const OMX_CALLBACKTYPE *callbacks,
     29             OMX_PTR appData,
     30             OMX_COMPONENTTYPE **component);
     31 
     32 protected:
     33     virtual ~SoftAMRNBEncoder();
     34 
     35     virtual OMX_ERRORTYPE internalGetParameter(
     36             OMX_INDEXTYPE index, OMX_PTR params);
     37 
     38     virtual OMX_ERRORTYPE internalSetParameter(
     39             OMX_INDEXTYPE index, const OMX_PTR params);
     40 
     41     virtual void onQueueFilled(OMX_U32 portIndex);
     42 
     43 private:
     44     enum {
     45         kNumBuffers             = 4,
     46         kNumSamplesPerFrame     = 160,
     47     };
     48 
     49     void *mEncState;
     50     void *mSidState;
     51 
     52     OMX_U32 mBitRate;
     53     int mMode;
     54 
     55     size_t mInputSize;
     56     int16_t mInputFrame[kNumSamplesPerFrame];
     57     int64_t mInputTimeUs;
     58 
     59     bool mSawInputEOS;
     60     bool mSignalledError;
     61 
     62     void initPorts();
     63     status_t initEncoder();
     64 
     65     status_t setAudioParams();
     66 
     67     DISALLOW_EVIL_CONSTRUCTORS(SoftAMRNBEncoder);
     68 };
     69 
     70 }  // namespace android
     71 
     72 #endif  // SOFT_AMRNB_ENCODER_H_
     73