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      1 /*
      2  * Copyright (C) 2011 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_AMR_H_
     18 
     19 #define SOFT_AMR_H_
     20 
     21 #include "SimpleSoftOMXComponent.h"
     22 
     23 namespace android {
     24 
     25 struct SoftAMR : public SimpleSoftOMXComponent {
     26     SoftAMR(const char *name,
     27             const OMX_CALLBACKTYPE *callbacks,
     28             OMX_PTR appData,
     29             OMX_COMPONENTTYPE **component);
     30 
     31 protected:
     32     virtual ~SoftAMR();
     33 
     34     virtual OMX_ERRORTYPE internalGetParameter(
     35             OMX_INDEXTYPE index, OMX_PTR params);
     36 
     37     virtual OMX_ERRORTYPE internalSetParameter(
     38             OMX_INDEXTYPE index, const OMX_PTR params);
     39 
     40     virtual void onQueueFilled(OMX_U32 portIndex);
     41     virtual void onPortFlushCompleted(OMX_U32 portIndex);
     42     virtual void onPortEnableCompleted(OMX_U32 portIndex, bool enabled);
     43 
     44 private:
     45     enum {
     46         kNumBuffers             = 4,
     47         kSampleRateNB           = 8000,
     48         kSampleRateWB           = 16000,
     49         kNumSamplesPerFrameNB   = 160,
     50         kNumSamplesPerFrameWB   = 320,
     51     };
     52 
     53     enum {
     54         MODE_NARROW,
     55         MODE_WIDE
     56 
     57     } mMode;
     58 
     59     void *mState;
     60     void *mDecoderBuf;
     61     int16_t *mDecoderCookie;
     62 
     63     size_t mInputBufferCount;
     64     int64_t mAnchorTimeUs;
     65     int64_t mNumSamplesOutput;
     66 
     67     bool mSignalledError;
     68 
     69     enum {
     70         NONE,
     71         AWAITING_DISABLED,
     72         AWAITING_ENABLED
     73     } mOutputPortSettingsChange;
     74 
     75     int16_t mInputSampleBuffer[477];
     76 
     77     void initPorts();
     78     status_t initDecoder();
     79     bool isConfigured() const;
     80 
     81     DISALLOW_EVIL_CONSTRUCTORS(SoftAMR);
     82 };
     83 
     84 }  // namespace android
     85 
     86 #endif  // SOFT_AMR_H_
     87 
     88