diff options
Diffstat (limited to 'media/libstagefright/codecs/aacdec/pvmp4audiodecoderresetbuffer.cpp')
| -rw-r--r-- | media/libstagefright/codecs/aacdec/pvmp4audiodecoderresetbuffer.cpp | 354 |
1 files changed, 0 insertions, 354 deletions
diff --git a/media/libstagefright/codecs/aacdec/pvmp4audiodecoderresetbuffer.cpp b/media/libstagefright/codecs/aacdec/pvmp4audiodecoderresetbuffer.cpp deleted file mode 100644 index c10423b..0000000 --- a/media/libstagefright/codecs/aacdec/pvmp4audiodecoderresetbuffer.cpp +++ /dev/null @@ -1,354 +0,0 @@ -/* ------------------------------------------------------------------ - * Copyright (C) 1998-2009 PacketVideo - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either - * express or implied. - * See the License for the specific language governing permissions - * and limitations under the License. - * ------------------------------------------------------------------- - */ -/* - - Pathname: PVMP4AudioDecoderResetBuffer.c - ------------------------------------------------------------------------------- - REVISION HISTORY - - Description: (1) add more comments (2) set pVars->bno = 1 - - Description: perChan[] is an array of structures in tDec_Int_File. Made - corresponding changes. - - Who: Date: - Description: - ------------------------------------------------------------------------------- - INPUT AND OUTPUT DEFINITIONS - - Inputs: - - pMem = void pointer to hide the internal implementation of the library - It is cast back to a tDec_Int_File structure. This structure - contains information that needs to persist between calls to - PVMP4AudioDecodeFrame - Data type void pointer, internally pointer to a tDec_Int_File - structure. - - Local Stores/Buffers/Pointers Needed: None - (The memory set aside in pMem performs this task) - - Global Stores/Buffers/Pointers Needed: None - - Outputs: None - - Pointers and Buffers Modified: - pMem contents are modified. - pMem->perChan[0].time_quant[0-1023]: contents are set to zero - pMem->perChan[1].time_quant[0-1023]: contents are set to zero - pMem->bno = 1 - - Local Stores Modified: None. - - Global Stores Modified: None. - ------------------------------------------------------------------------------- - FUNCTION DESCRIPTION - - This function is called when the same audio clip will be played again from - the begining. This situation happens when the "stop" button is pressed or - the "loop-mode" is selected on PVPlayer. Since it is the same audio clip to - be played again, the decoder does not need to reset the audioSpecificInfo. - However, the overlap-and-add buffer of the filterbank output needs to be - cleared, so that the decoder can re-start properly from the begining of - the audio. The frame number counter, pVars->bno, is set to 1 because the - audioSpecificInfo is decoded on pVars->bno==0 - ------------------------------------------------------------------------------- - REQUIREMENTS - - PacketVideo Document # CCC-AUD-AAC-ERS-0003 - ------------------------------------------------------------------------------- - REFERENCES - - (1) ISO/IEC 14496-3: 1999(E) - subclause 1.6 - ------------------------------------------------------------------------------- - RESOURCES USED - When the code is written for a specific target processor the - the resources used should be documented below. - - STACK USAGE: [stack count for this module] + [variable to represent - stack usage for each subroutine called] - - where: [stack usage variable] = stack usage for [subroutine - name] (see [filename].ext) - - DATA MEMORY USED: x words - - PROGRAM MEMORY USED: x words - - CLOCK CYCLES: [cycle count equation for this module] + [variable - used to represent cycle count for each subroutine - called] - - where: [cycle count variable] = cycle count for [subroutine - name] (see [filename].ext) - ------------------------------------------------------------------------------- -*/ - - -/*---------------------------------------------------------------------------- -; INCLUDES -----------------------------------------------------------------------------*/ -#include "pv_audio_type_defs.h" -#include "s_tdec_int_file.h" -#include "pvmp4audiodecoder_api.h" /* Where this function is declared */ -#include "aac_mem_funcs.h" - -#ifdef AAC_PLUS -#include "s_sbr_frame_data.h" -#endif - -/*---------------------------------------------------------------------------- -; MACROS -; Define module specific macros here -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; DEFINES -; Include all pre-processor statements here. Include conditional -; compile variables also. -----------------------------------------------------------------------------*/ -#define LEFT (0) -#define RIGHT (1) - -/*---------------------------------------------------------------------------- -; LOCAL FUNCTION DEFINITIONS -; Function Prototype declaration -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; LOCAL STORE/BUFFER/POINTER DEFINITIONS -; Variable declaration - defined here and used outside this module -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; EXTERNAL FUNCTION REFERENCES -; Declare functions defined elsewhere and referenced in this module -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; EXTERNAL GLOBAL STORE/BUFFER/POINTER REFERENCES -; Declare variables used in this module but defined elsewhere -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; FUNCTION CODE -----------------------------------------------------------------------------*/ - -OSCL_EXPORT_REF void PVMP4AudioDecoderResetBuffer(void *pMem) -{ - - tDec_Int_File *pVars; /* Helper pointer */ - -#ifdef AAC_PLUS - SBR_FRAME_DATA * hFrameData_1; - SBR_FRAME_DATA * hFrameData_2; -#ifdef HQ_SBR -#ifdef PARAMETRICSTEREO - SBRDECODER_DATA *sbrDecoderData; -#endif -#endif - -#endif - /* - * Initialize "helper" pointers to existing memory. - */ - pVars = (tDec_Int_File *)pMem; - - /* - * Clear the overlap-and-add buffer of filterbank output. The audio - * clip will be played again from the beginning. - */ - pv_memset(pVars->perChan[LEFT].time_quant, - 0, - LONG_WINDOW*sizeof(pVars->perChan[LEFT].time_quant[0])); - - pv_memset(pVars->perChan[RIGHT].time_quant, - 0, - LONG_WINDOW*sizeof(pVars->perChan[RIGHT].time_quant[0])); - - -#ifdef AAC_PLUS - - if (!pVars->sbrDecoderData.setStreamType) /* reset only when stream type is defined */ - { - if (pVars->aacPlusEnabled == true) /* clear buffer only if they were used */ - { - - hFrameData_1 = (SBR_FRAME_DATA *) & pVars->sbrDecoderData.SbrChannel[LEFT].frameData; - hFrameData_2 = (SBR_FRAME_DATA *) & pVars->sbrDecoderData.SbrChannel[RIGHT].frameData; -#ifdef HQ_SBR -#ifdef PARAMETRICSTEREO - sbrDecoderData = (SBRDECODER_DATA *) & pVars->sbrDecoderData; - sbrDecoderData->hParametricStereoDec = (HANDLE_PS_DEC) & pVars->sbrDecoderData.ParametricStereoDec; -#endif -#endif - - - pv_memset(&pVars->perChan[LEFT].ltp_buffer[0], - 0, - 288*sizeof(pVars->perChan[LEFT].ltp_buffer[0])); - pv_memset(&pVars->perChan[LEFT].ltp_buffer[1024 + 288], - 0, - 288*sizeof(pVars->perChan[LEFT].ltp_buffer[0])); - pv_memset(hFrameData_1->V, - 0, - 1152*sizeof(hFrameData_1->V[0])); - pv_memset(hFrameData_1->prevNoiseLevel_man, - 0, - MAX_NUM_NOISE_VALUES*sizeof(hFrameData_1->prevNoiseLevel_man[0])); - - - pv_memset(&pVars->perChan[RIGHT].ltp_buffer[0], - 0, - 288*sizeof(pVars->perChan[RIGHT].ltp_buffer[0])); - pv_memset(&pVars->perChan[RIGHT].ltp_buffer[1024 + 288], - 0, - 288*sizeof(pVars->perChan[RIGHT].ltp_buffer[0])); - pv_memset(hFrameData_2->V, - 0, - 1152*sizeof(hFrameData_2->V[0])); - - pv_memset(hFrameData_2->prevNoiseLevel_man, - 0, - MAX_NUM_NOISE_VALUES*sizeof(hFrameData_2->prevNoiseLevel_man[0])); - - - int i; - for (i = 0; i < 8; i++) - { - pv_memset((void *)&hFrameData_1->codecQmfBufferReal[i], - 0, - sizeof(**hFrameData_1->codecQmfBufferReal) << 5); - } - - - /* ---- */ - pv_memset((void *)hFrameData_1->BwVectorOld, - 0, - sizeof(*hFrameData_1->BwVectorOld)*MAX_NUM_PATCHES); - -#ifdef HQ_SBR - - for (i = 0; i < 5; i++) - { - pv_memset((void *)&hFrameData_1->fBuffer_man[i], - 0, - sizeof(**hFrameData_1->fBuffer_man)*64); - pv_memset((void *)&hFrameData_1->fBufferN_man[i], - 0, - sizeof(**hFrameData_1->fBufferN_man)*64); - } -#endif - - - /* ---- */ - - - - pv_memset((void *)hFrameData_1->HistsbrQmfBufferReal, - 0, - sizeof(*hFrameData_1->HistsbrQmfBufferReal)*6*SBR_NUM_BANDS); - -#ifdef HQ_SBR - pv_memset((void *)hFrameData_1->HistsbrQmfBufferImag, - 0, - sizeof(*hFrameData_1->HistsbrQmfBufferImag)*6*SBR_NUM_BANDS); -#endif - - if (pVars->sbrDec.LC_aacP_DecoderFlag == 1) /* clear buffer only for LC decoding */ - { - - for (i = 0; i < 8; i++) - { - pv_memset((void *)&hFrameData_2->codecQmfBufferReal[i], - 0, - sizeof(**hFrameData_1->codecQmfBufferReal) << 5); - } - - pv_memset((void *)hFrameData_2->HistsbrQmfBufferReal, - 0, - sizeof(*hFrameData_2->HistsbrQmfBufferReal)*6*SBR_NUM_BANDS); - - - pv_memset((void *)hFrameData_2->BwVectorOld, - 0, - sizeof(*hFrameData_2->BwVectorOld)*MAX_NUM_PATCHES); - -#ifdef HQ_SBR - - for (i = 0; i < 5; i++) - { - pv_memset((void *)&hFrameData_2->fBuffer_man[i], - 0, - sizeof(**hFrameData_2->fBuffer_man)*64); - pv_memset((void *)&hFrameData_2->fBufferN_man[i], - 0, - sizeof(**hFrameData_2->fBufferN_man)*64); - } -#endif - - } - -#ifdef HQ_SBR -#ifdef PARAMETRICSTEREO - else if (pVars->mc_info.psPresentFlag == 1) - { - for (i = 0; i < 3; i++) - { - pv_memset(sbrDecoderData->hParametricStereoDec->hHybrid->mQmfBufferReal[i], - 0, - HYBRID_FILTER_LENGTH_m_1*sizeof(*sbrDecoderData->hParametricStereoDec->hHybrid->mQmfBufferReal)); - pv_memset(sbrDecoderData->hParametricStereoDec->hHybrid->mQmfBufferImag[i], - 0, - HYBRID_FILTER_LENGTH_m_1*sizeof(*sbrDecoderData->hParametricStereoDec->hHybrid->mQmfBufferImag)); - } - } -#endif -#endif - - /* - * default to UPSAMPLING, as if the file is SBR_ACTIVE, this will be fine and will be - * fixed onced the new sbr header is found - * SBR headers contain SBT freq. range as well as control signals that do not require - * frequent changes. - * For streaming, the SBR header is sent twice per second. Also, an SBR header can be - * inserted at any time, if a change of parameters is needed. - */ - - pVars->sbrDecoderData.SbrChannel[LEFT].syncState = UPSAMPLING; - pVars->sbrDecoderData.SbrChannel[RIGHT].syncState = UPSAMPLING; - - } - } -#endif /* #ifdef AAC_PLUS */ - - /* reset frame count to 1 */ - pVars->bno = 1; - - return ; - -} /* PVMP4AudioDecoderDecodeFrame */ - |