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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 omx_Avc_component.h
     20     OpenMax decoder_component component.
     21 
     22 */
     23 
     24 #ifndef OMX_AVC_COMPONENT_H_INCLUDED
     25 #define OMX_AVC_COMPONENT_H_INCLUDED
     26 
     27 #ifndef PV_OMXCOMPONENT_H_INCLUDED
     28 #include "pv_omxcomponent.h"
     29 #endif
     30 
     31 #ifndef AVC_DEC_H_INCLUDED
     32 #include "avc_dec.h"
     33 #endif
     34 
     35 #if (defined(TEST_FULL_AVC_FRAME_MODE) || defined(TEST_FULL_AVC_FRAME_MODE_SC))
     36 #define INPUT_BUFFER_SIZE_AVC (2000 * MAX_NAL_PER_FRAME)
     37 #else
     38 #define INPUT_BUFFER_SIZE_AVC 2000
     39 #undef MAX_NAL_PER_FRAME
     40 #define MAX_NAL_PER_FRAME 1 /* this component doesn't need to suppoart more than 1 NAL per frame in this mode, so overwrite default */
     41 #endif
     42 
     43 #define NAL_START_CODE_SIZE 4
     44 
     45 //qcif - output 176*144*3/2
     46 #define OUTPUT_BUFFER_SIZE_AVC 38016
     47 
     48 #define NUMBER_INPUT_BUFFER_AVC  10
     49 #define NUMBER_OUTPUT_BUFFER_AVC  2
     50 
     51 
     52 class OpenmaxAvcAO : public OmxComponentVideo
     53 {
     54     public:
     55 
     56         OpenmaxAvcAO();
     57         ~OpenmaxAvcAO();
     58 
     59         OMX_ERRORTYPE ConstructComponent(OMX_PTR pAppData, OMX_PTR pProxy);
     60         OMX_ERRORTYPE DestroyComponent();
     61 
     62         OMX_ERRORTYPE ComponentInit();
     63         OMX_ERRORTYPE ComponentDeInit();
     64 
     65         static void ComponentGetRolesOfComponent(OMX_STRING* aRoleString);
     66 
     67         void ComponentBufferMgmtWithoutMarker();
     68         OMX_BOOL ParseFullAVCFramesIntoNALs(OMX_BUFFERHEADERTYPE* aInputBuffer);
     69         void ProcessData();
     70         void DecodeWithoutMarker();
     71         void DecodeWithMarker();
     72         void ResetComponent();
     73         OMX_ERRORTYPE GetConfig(
     74             OMX_IN  OMX_HANDLETYPE hComponent,
     75             OMX_IN  OMX_INDEXTYPE nIndex,
     76             OMX_INOUT OMX_PTR pComponentConfigStructure);
     77 
     78 
     79     private:
     80 
     81         AvcDecoder_OMX* ipAvcDec;
     82         OMX_BOOL                iDecodeReturn;
     83 
     84         // variables for "frame" mode i.e. iOMXComponentNeedsFullAVCFrames is turned on
     85         OMX_U32 iNALSizeArray[MAX_NAL_PER_FRAME]; // 100 should be more than enough NALs per frame
     86         OMX_U32 iCurrNAL;
     87         OMX_U32 iNumNALs;
     88         OMX_U32 iNALOffset;
     89 };
     90 
     91 
     92 
     93 #endif // OMX_AVC_COMPONENT_H_INCLUDED
     94