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Diffstat (limited to 'media/libstagefright/codecs/aacdec/sbr_get_noise_floor_data.cpp')
| -rw-r--r-- | media/libstagefright/codecs/aacdec/sbr_get_noise_floor_data.cpp | 218 |
1 files changed, 0 insertions, 218 deletions
diff --git a/media/libstagefright/codecs/aacdec/sbr_get_noise_floor_data.cpp b/media/libstagefright/codecs/aacdec/sbr_get_noise_floor_data.cpp deleted file mode 100644 index 8d86158..0000000 --- a/media/libstagefright/codecs/aacdec/sbr_get_noise_floor_data.cpp +++ /dev/null @@ -1,218 +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. - * ------------------------------------------------------------------- - */ -/* - - Filename: sbr_get_noise_floor_data.c - - ------------------------------------------------------------------------------- - REVISION HISTORY - - - Who: Date: MM/DD/YYYY - Description: - ------------------------------------------------------------------------------- - INPUT AND OUTPUT DEFINITIONS - - Arguments: h_frame_data - handle to struct SBR_FRAME_DATA - hBitBuf - handle to struct BIT_BUF - - Return: void - - ------------------------------------------------------------------------------- - FUNCTION DESCRIPTION - - Reads noise-floor-level data from bitstream - ------------------------------------------------------------------------------- - REQUIREMENTS - - ------------------------------------------------------------------------------- - REFERENCES - -SC 29 Software Copyright Licencing Disclaimer: - -This software module was originally developed by - Coding Technologies - -and edited by - - - -in the course of development of the ISO/IEC 13818-7 and ISO/IEC 14496-3 -standards for reference purposes and its performance may not have been -optimized. This software module is an implementation of one or more tools as -specified by the ISO/IEC 13818-7 and ISO/IEC 14496-3 standards. -ISO/IEC gives users free license to this software module or modifications -thereof for use in products claiming conformance to audiovisual and -image-coding related ITU Recommendations and/or ISO/IEC International -Standards. ISO/IEC gives users the same free license to this software module or -modifications thereof for research purposes and further ISO/IEC standardisation. -Those intending to use this software module in products are advised that its -use may infringe existing patents. ISO/IEC have no liability for use of this -software module or modifications thereof. Copyright is not released for -products that do not conform to audiovisual and image-coding related ITU -Recommendations and/or ISO/IEC International Standards. -The original developer retains full right to modify and use the code for its -own purpose, assign or donate the code to a third party and to inhibit third -parties from using the code for products that do not conform to audiovisual and -image-coding related ITU Recommendations and/or ISO/IEC International Standards. -This copyright notice must be included in all copies or derivative works. -Copyright (c) ISO/IEC 2002. - ------------------------------------------------------------------------------- - PSEUDO-CODE - ------------------------------------------------------------------------------- -*/ - - -/*---------------------------------------------------------------------------- -; INCLUDES -----------------------------------------------------------------------------*/ - -#ifdef AAC_PLUS - - -#include "sbr_get_noise_floor_data.h" -#include "e_coupling_mode.h" -#include "buf_getbits.h" -#include "sbr_code_book_envlevel.h" -#include "s_huffman.h" -#include "sbr_decode_huff_cw.h" - -/*---------------------------------------------------------------------------- -; MACROS -; Define module specific macros here -----------------------------------------------------------------------------*/ - - -/*---------------------------------------------------------------------------- -; DEFINES -; Include all pre-processor statements here. Include conditional -; compile variables also. -----------------------------------------------------------------------------*/ - -/*---------------------------------------------------------------------------- -; 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 -----------------------------------------------------------------------------*/ - -void sbr_get_noise_floor_data(SBR_FRAME_DATA * h_frame_data, - BIT_BUFFER * hBitBuf) -{ - Int32 i; - Int32 j; - Int32 k; - Int32 tmp; - Int32 delta; - Int32 noNoiseBands = h_frame_data->nNfb; - Int32 envDataTableCompFactor; - - COUPLING_MODE coupling = h_frame_data->coupling; - - SbrHuffman hcb_noiseF; - SbrHuffman hcb_noise; - - - if (coupling == COUPLING_BAL) - { - hcb_noise = bookSbrNoiseBalance11T; - hcb_noiseF = bookSbrEnvBalance11F; /* "bookSbrNoiseBalance11F" */ - envDataTableCompFactor = 1; - } - else - { - hcb_noise = bookSbrNoiseLevel11T; - hcb_noiseF = bookSbrEnvLevel11F; /* "bookSbrNoiseLevel11F" */ - envDataTableCompFactor = 0; - } - - /* - * Calculate number of values alltogether - */ - h_frame_data->nNoiseFactors = h_frame_data->frameInfo[((h_frame_data->frameInfo[0]) << 1) + 3] * noNoiseBands; - - - for (i = 0; i < h_frame_data->nNoiseFloorEnvelopes; i++) - { - k = i * noNoiseBands; - if (h_frame_data->domain_vec2[i] == FREQ) - { - if (coupling == COUPLING_BAL) - { - tmp = buf_getbits(hBitBuf, SI_SBR_START_NOISE_BITS_BALANCE_AMP_RES_3_0) << 1; /* max. 62 */ - h_frame_data->sbrNoiseFloorLevel_man[k] = tmp; - h_frame_data->sbrNoiseFloorLevel_exp[k] = 0; - } - else - { - tmp = buf_getbits(hBitBuf, SI_SBR_START_NOISE_BITS_AMP_RES_3_0); /* max. 31 */ - h_frame_data->sbrNoiseFloorLevel_man[k] = tmp; - h_frame_data->sbrNoiseFloorLevel_exp[k] = 0; - } - - for (j = 1; j < noNoiseBands; j++) - { - delta = sbr_decode_huff_cw(hcb_noiseF, hBitBuf); /* - * -31 < delta < 31 - * -24 < delta < 24 COUPLING_BAL (incl. <<1) - */ - h_frame_data->sbrNoiseFloorLevel_man[k+j] = delta << envDataTableCompFactor; - h_frame_data->sbrNoiseFloorLevel_exp[k+j] = 0; - } - } - else - { - for (j = 0; j < noNoiseBands; j++) - { - delta = sbr_decode_huff_cw(hcb_noise, hBitBuf); /* - * -31 < delta < 31 - * -24 < delta < 24 COUPLING_BAL (incl. <<1) - */ - h_frame_data->sbrNoiseFloorLevel_man[k+j] = delta << envDataTableCompFactor; - h_frame_data->sbrNoiseFloorLevel_exp[k+j] = 0; - } - } - } -} - -#endif - - |