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      1 /* ------------------------------------------------------------------
      2  * Copyright (C) 1998-2009 PacketVideo
      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
     13  * express or implied.
     14  * See the License for the specific language governing permissions
     15  * and limitations under the License.
     16  * -------------------------------------------------------------------
     17  */
     18 /**
     19     @file src/base/amr_component.h
     20 
     21     OpenMax base_component component. This component does not perform any multimedia
     22     processing. It is used as a base_component for new components development.
     23 
     24 */
     25 
     26 #ifndef OMX_AMR_COMPONENT_H_INCLUDED
     27 #define OMX_AMR_COMPONENT_H_INCLUDED
     28 
     29 #ifndef PV_OMXCOMPONENT_H_INCLUDED
     30 #include "pv_omxcomponent.h"
     31 #endif
     32 
     33 #ifndef AMR_DEC_H_INCLUDED
     34 #include "amr_dec.h"
     35 #endif
     36 
     37 #define INPUT_BUFFER_SIZE_AMR 2000
     38 #define OUTPUT_BUFFER_SIZE_AMR 640
     39 
     40 #define NUMBER_INPUT_BUFFER_AMR  10
     41 #define NUMBER_OUTPUT_BUFFER_AMR  9
     42 
     43 // we are assuming 16 bits per sample
     44 #define AMR_NB_OUTPUT_FRAME_SIZE_IN_BYTES 320
     45 #define AMR_WB_OUTPUT_FRAME_SIZE_IN_BYTES 640
     46 
     47 class OpenmaxAmrAO : public OmxComponentAudio
     48 {
     49     public:
     50 
     51         OpenmaxAmrAO();
     52         ~OpenmaxAmrAO();
     53 
     54 
     55         OMX_ERRORTYPE ConstructComponent(OMX_PTR pAppData, OMX_PTR pProxy);
     56         OMX_ERRORTYPE DestroyComponent();
     57 
     58         OMX_ERRORTYPE ComponentInit();
     59         OMX_ERRORTYPE ComponentDeInit();
     60 
     61         static void ComponentGetRolesOfComponent(OMX_STRING* aRoleString);
     62         void ProcessData();
     63 
     64         void DecodeWithoutMarker();
     65         void DecodeWithMarker();
     66 
     67         void ComponentBufferMgmtWithoutMarker();
     68         void SyncWithInputTimestamp();
     69         void ProcessInBufferFlag();
     70 
     71         void ResetComponent();
     72 
     73         OMX_ERRORTYPE GetConfig(
     74             OMX_IN  OMX_HANDLETYPE hComponent,
     75             OMX_IN  OMX_INDEXTYPE nIndex,
     76             OMX_INOUT OMX_PTR pComponentConfigStructure);
     77 
     78     private:
     79 
     80         void CheckForSilenceInsertion();
     81         void DoSilenceInsertion();
     82 
     83         OMX_TICKS               iCurrentTimestamp;
     84         OMX_S32                 iPreviousFrameLength;
     85         OMX_U32                 iZeroFramesNeeded;
     86 
     87         OmxAmrDecoder* ipAmrDec;
     88 };
     89 
     90 #endif // OMX_AMR_COMPONENT_H_INCLUDED
     91