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authorMatthias P. Braendli <matthias.braendli@mpb.li>2016-09-10 20:15:44 +0200
committerMatthias P. Braendli <matthias.braendli@mpb.li>2016-09-10 20:15:44 +0200
commit14c7b800eaa23e9da7c92c7c4df397d0c191f097 (patch)
treed840b6ec41ff74d1184ca1dcd7731d08f1e9ebbb /libSBRenc/src/bit_sbr.cpp
parent78a801e4d716c6f2403cc56cf6c5b6f138f24b2f (diff)
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Remove FDK-AAC
Diffstat (limited to 'libSBRenc/src/bit_sbr.cpp')
-rw-r--r--libSBRenc/src/bit_sbr.cpp1059
1 files changed, 0 insertions, 1059 deletions
diff --git a/libSBRenc/src/bit_sbr.cpp b/libSBRenc/src/bit_sbr.cpp
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index 963aeff..0000000
--- a/libSBRenc/src/bit_sbr.cpp
+++ /dev/null
@@ -1,1059 +0,0 @@
-
-/* -----------------------------------------------------------------------------------------------------------
-Software License for The Fraunhofer FDK AAC Codec Library for Android
-
-© Copyright 1995 - 2013 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
- All rights reserved.
-
- 1. INTRODUCTION
-The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software that implements
-the MPEG Advanced Audio Coding ("AAC") encoding and decoding scheme for digital audio.
-This FDK AAC Codec software is intended to be used on a wide variety of Android devices.
-
-AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient general perceptual
-audio codecs. AAC-ELD is considered the best-performing full-bandwidth communications codec by
-independent studies and is widely deployed. AAC has been standardized by ISO and IEC as part
-of the MPEG specifications.
-
-Patent licenses for necessary patent claims for the FDK AAC Codec (including those of Fraunhofer)
-may be obtained through Via Licensing (www.vialicensing.com) or through the respective patent owners
-individually for the purpose of encoding or decoding bit streams in products that are compliant with
-the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
-these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
-software may already be covered under those patent licenses when it is used for those licensed purposes only.
-
-Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
-are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
-applications information and documentation.
-
-2. COPYRIGHT LICENSE
-
-Redistribution and use in source and binary forms, with or without modification, are permitted without
-payment of copyright license fees provided that you satisfy the following conditions:
-
-You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
-your modifications thereto in source code form.
-
-You must retain the complete text of this software license in the documentation and/or other materials
-provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
-You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
-modifications thereto to recipients of copies in binary form.
-
-The name of Fraunhofer may not be used to endorse or promote products derived from this library without
-prior written permission.
-
-You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
-software or your modifications thereto.
-
-Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
-and the date of any change. For modified versions of the FDK AAC Codec, the term
-"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
-"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
-
-3. NO PATENT LICENSE
-
-NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
-ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
-respect to this software.
-
-You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
-by appropriate patent licenses.
-
-4. DISCLAIMER
-
-This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
-"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
-of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
-CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
-including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
-or business interruption, however caused and on any theory of liability, whether in contract, strict
-liability, or tort (including negligence), arising in any way out of the use of this software, even if
-advised of the possibility of such damage.
-
-5. CONTACT INFORMATION
-
-Fraunhofer Institute for Integrated Circuits IIS
-Attention: Audio and Multimedia Departments - FDK AAC LL
-Am Wolfsmantel 33
-91058 Erlangen, Germany
-
-www.iis.fraunhofer.de/amm
-amm-info@iis.fraunhofer.de
------------------------------------------------------------------------------------------------------------ */
-
-/*!
- \file
- \brief SBR bit writing routines
-*/
-
-
-#include "bit_sbr.h"
-
-#include "code_env.h"
-#include "cmondata.h"
-#include "sbr.h"
-
-#include "ps_main.h"
-
-typedef enum {
- SBR_ID_SCE = 1,
- SBR_ID_CPE
-} SBR_ELEMENT_TYPE;
-
-
-static INT encodeSbrData (HANDLE_SBR_ENV_DATA sbrEnvDataLeft,
- HANDLE_SBR_ENV_DATA sbrEnvDataRight,
- HANDLE_PARAMETRIC_STEREO hParametricStereo,
- HANDLE_COMMON_DATA cmonData,
- SBR_ELEMENT_TYPE sbrElem,
- INT coupling,
- UINT sbrSyntaxFlags);
-
-static INT encodeSbrHeader (HANDLE_SBR_HEADER_DATA sbrHeaderData,
- HANDLE_SBR_BITSTREAM_DATA sbrBitstreamData,
- HANDLE_COMMON_DATA cmonData);
-
-
-static INT encodeSbrHeaderData (HANDLE_SBR_HEADER_DATA sbrHeaderData,
- HANDLE_FDK_BITSTREAM hBitStream);
-
-static INT encodeSbrSingleChannelElement (HANDLE_SBR_ENV_DATA sbrEnvData,
- HANDLE_FDK_BITSTREAM hBitStream
- ,HANDLE_PARAMETRIC_STEREO hParametricStereo
- ,UINT sbrSyntaxFlags
- );
-
-
-
-static INT encodeSbrChannelPairElement (HANDLE_SBR_ENV_DATA sbrEnvDataLeft,
- HANDLE_SBR_ENV_DATA sbrEnvDataRight,
- HANDLE_PARAMETRIC_STEREO hParametricStereo,
- HANDLE_FDK_BITSTREAM hBitStream,
- INT coupling);
-
-
-static INT encodeSbrGrid (HANDLE_SBR_ENV_DATA sbrEnvData,
- HANDLE_FDK_BITSTREAM hBitStream);
-
-static int encodeLowDelaySbrGrid ( HANDLE_SBR_ENV_DATA sbrEnvData,
- HANDLE_FDK_BITSTREAM hBitStream,
- int transmitFreqs);
-
-static INT encodeSbrDtdf (HANDLE_SBR_ENV_DATA sbrEnvData,
- HANDLE_FDK_BITSTREAM hBitStream);
-
-static INT writeNoiseLevelData (HANDLE_SBR_ENV_DATA sbrEnvData,
- HANDLE_FDK_BITSTREAM hBitStream,
- INT coupling);
-
-static INT writeEnvelopeData (HANDLE_SBR_ENV_DATA sbrEnvData,
- HANDLE_FDK_BITSTREAM hBitStream,
- INT coupling);
-
-static INT writeSyntheticCodingData (HANDLE_SBR_ENV_DATA sbrEnvData,
- HANDLE_FDK_BITSTREAM hBitStream);
-
-
-static INT encodeExtendedData (HANDLE_PARAMETRIC_STEREO hParametricStereo,
- HANDLE_FDK_BITSTREAM hBitStream);
-
-
-
-static INT getSbrExtendedDataSize (HANDLE_PARAMETRIC_STEREO hParametricStereo);
-
-/*****************************************************************************
-
- functionname: FDKsbrEnc_WriteEnvSingleChannelElement
- description: writes pure SBR single channel data element
- returns: number of bits written
- input:
- output:
-
-*****************************************************************************/
-INT
-FDKsbrEnc_WriteEnvSingleChannelElement(
- HANDLE_SBR_HEADER_DATA sbrHeaderData,
- HANDLE_PARAMETRIC_STEREO hParametricStereo,
- HANDLE_SBR_BITSTREAM_DATA sbrBitstreamData,
- HANDLE_SBR_ENV_DATA sbrEnvData,
- HANDLE_COMMON_DATA cmonData,
- UINT sbrSyntaxFlags
- )
-
-{
- INT payloadBits = 0;
-
- cmonData->sbrHdrBits = 0;
- cmonData->sbrDataBits = 0;
-
- /* write pure sbr data */
- if (sbrEnvData != NULL) {
-
- /* write header */
- payloadBits += encodeSbrHeader (sbrHeaderData,
- sbrBitstreamData,
- cmonData);
-
-
- /* write data */
- payloadBits += encodeSbrData (sbrEnvData,
- NULL,
- hParametricStereo,
- cmonData,
- SBR_ID_SCE,
- 0,
- sbrSyntaxFlags);
-
- }
- return payloadBits;
-}
-
-/*****************************************************************************
-
- functionname: FDKsbrEnc_WriteEnvChannelPairElement
- description: writes pure SBR channel pair data element
- returns: number of bits written
- input:
- output:
-
-*****************************************************************************/
-INT
-FDKsbrEnc_WriteEnvChannelPairElement (HANDLE_SBR_HEADER_DATA sbrHeaderData,
- HANDLE_PARAMETRIC_STEREO hParametricStereo,
- HANDLE_SBR_BITSTREAM_DATA sbrBitstreamData,
- HANDLE_SBR_ENV_DATA sbrEnvDataLeft,
- HANDLE_SBR_ENV_DATA sbrEnvDataRight,
- HANDLE_COMMON_DATA cmonData,
- UINT sbrSyntaxFlags)
-
-{
- INT payloadBits = 0;
- cmonData->sbrHdrBits = 0;
- cmonData->sbrDataBits = 0;
-
- /* write pure sbr data */
- if ((sbrEnvDataLeft != NULL) && (sbrEnvDataRight != NULL)) {
-
- /* write header */
- payloadBits += encodeSbrHeader (sbrHeaderData,
- sbrBitstreamData,
- cmonData);
-
- /* write data */
- payloadBits += encodeSbrData (sbrEnvDataLeft,
- sbrEnvDataRight,
- hParametricStereo,
- cmonData,
- SBR_ID_CPE,
- sbrHeaderData->coupling,
- sbrSyntaxFlags);
-
- }
- return payloadBits;
-}
-
-INT
-FDKsbrEnc_CountSbrChannelPairElement (HANDLE_SBR_HEADER_DATA sbrHeaderData,
- HANDLE_PARAMETRIC_STEREO hParametricStereo,
- HANDLE_SBR_BITSTREAM_DATA sbrBitstreamData,
- HANDLE_SBR_ENV_DATA sbrEnvDataLeft,
- HANDLE_SBR_ENV_DATA sbrEnvDataRight,
- HANDLE_COMMON_DATA cmonData,
- UINT sbrSyntaxFlags)
-{
- INT payloadBits;
- INT bitPos = FDKgetValidBits(&cmonData->sbrBitbuf);
-
- payloadBits = FDKsbrEnc_WriteEnvChannelPairElement(sbrHeaderData,
- hParametricStereo,
- sbrBitstreamData,
- sbrEnvDataLeft,
- sbrEnvDataRight,
- cmonData,
- sbrSyntaxFlags);
-
- FDKpushBack(&cmonData->sbrBitbuf, (FDKgetValidBits(&cmonData->sbrBitbuf) - bitPos) );
-
- return payloadBits;
-}
-
-
-void sbrEncoder_GetHeader(SBR_ENCODER *sbrEncoder,
- HANDLE_FDK_BITSTREAM hBs,
- INT element_index,
- int fSendHeaders)
-{
- int bits;
-
- bits = encodeSbrHeaderData (&sbrEncoder->sbrElement[element_index]->sbrHeaderData, hBs);
-
- if (fSendHeaders == 0) {
- /* Prevent header being embedded into the SBR payload. */
- sbrEncoder->sbrElement[element_index]->sbrBitstreamData.NrSendHeaderData = -1;
- sbrEncoder->sbrElement[element_index]->sbrBitstreamData.HeaderActive = 0;
- sbrEncoder->sbrElement[element_index]->sbrBitstreamData.CountSendHeaderData = -1;
- }
-}
-
-
-/*****************************************************************************
-
- functionname: encodeSbrHeader
- description: encodes SBR Header information
- returns: number of bits written
- input:
- output:
-
-*****************************************************************************/
-static INT
-encodeSbrHeader (HANDLE_SBR_HEADER_DATA sbrHeaderData,
- HANDLE_SBR_BITSTREAM_DATA sbrBitstreamData,
- HANDLE_COMMON_DATA cmonData)
-{
- INT payloadBits = 0;
-
- if (sbrBitstreamData->HeaderActive) {
- payloadBits += FDKwriteBits (&cmonData->sbrBitbuf, 1, 1);
- payloadBits += encodeSbrHeaderData (sbrHeaderData,
- &cmonData->sbrBitbuf);
- }
- else {
- payloadBits += FDKwriteBits (&cmonData->sbrBitbuf, 0, 1);
- }
-
- cmonData->sbrHdrBits = payloadBits;
-
- return payloadBits;
-}
-
-
-
-/*****************************************************************************
-
- functionname: encodeSbrHeaderData
- description: writes sbr_header()
- bs_protocol_version through bs_header_extra_2
- returns: number of bits written
- input:
- output:
-
-*****************************************************************************/
-static INT
-encodeSbrHeaderData (HANDLE_SBR_HEADER_DATA sbrHeaderData,
- HANDLE_FDK_BITSTREAM hBitStream)
-
-{
- INT payloadBits = 0;
- if (sbrHeaderData != NULL) {
- payloadBits += FDKwriteBits (hBitStream, sbrHeaderData->sbr_amp_res,
- SI_SBR_AMP_RES_BITS);
- payloadBits += FDKwriteBits (hBitStream, sbrHeaderData->sbr_start_frequency,
- SI_SBR_START_FREQ_BITS);
- payloadBits += FDKwriteBits (hBitStream, sbrHeaderData->sbr_stop_frequency,
- SI_SBR_STOP_FREQ_BITS);
- payloadBits += FDKwriteBits (hBitStream, sbrHeaderData->sbr_xover_band,
- SI_SBR_XOVER_BAND_BITS);
-
- payloadBits += FDKwriteBits (hBitStream, 0,
- SI_SBR_RESERVED_BITS);
-
- payloadBits += FDKwriteBits (hBitStream, sbrHeaderData->header_extra_1,
- SI_SBR_HEADER_EXTRA_1_BITS);
- payloadBits += FDKwriteBits (hBitStream, sbrHeaderData->header_extra_2,
- SI_SBR_HEADER_EXTRA_2_BITS);
-
-
- if (sbrHeaderData->header_extra_1) {
- payloadBits += FDKwriteBits (hBitStream, sbrHeaderData->freqScale,
- SI_SBR_FREQ_SCALE_BITS);
- payloadBits += FDKwriteBits (hBitStream, sbrHeaderData->alterScale,
- SI_SBR_ALTER_SCALE_BITS);
- payloadBits += FDKwriteBits (hBitStream, sbrHeaderData->sbr_noise_bands,
- SI_SBR_NOISE_BANDS_BITS);
- } /* sbrHeaderData->header_extra_1 */
-
- if (sbrHeaderData->header_extra_2) {
- payloadBits += FDKwriteBits (hBitStream, sbrHeaderData->sbr_limiter_bands,
- SI_SBR_LIMITER_BANDS_BITS);
- payloadBits += FDKwriteBits (hBitStream, sbrHeaderData->sbr_limiter_gains,
- SI_SBR_LIMITER_GAINS_BITS);
- payloadBits += FDKwriteBits (hBitStream, sbrHeaderData->sbr_interpol_freq,
- SI_SBR_INTERPOL_FREQ_BITS);
- payloadBits += FDKwriteBits (hBitStream, sbrHeaderData->sbr_smoothing_length,
- SI_SBR_SMOOTHING_LENGTH_BITS);
-
- } /* sbrHeaderData->header_extra_2 */
- } /* sbrHeaderData != NULL */
-
- return payloadBits;
-}
-
-
-/*****************************************************************************
-
- functionname: encodeSbrData
- description: encodes sbr Data information
- returns: number of bits written
- input:
- output:
-
-*****************************************************************************/
-static INT
-encodeSbrData (HANDLE_SBR_ENV_DATA sbrEnvDataLeft,
- HANDLE_SBR_ENV_DATA sbrEnvDataRight,
- HANDLE_PARAMETRIC_STEREO hParametricStereo,
- HANDLE_COMMON_DATA cmonData,
- SBR_ELEMENT_TYPE sbrElem,
- INT coupling,
- UINT sbrSyntaxFlags)
-{
- INT payloadBits = 0;
-
- switch (sbrElem) {
- case SBR_ID_SCE:
- payloadBits += encodeSbrSingleChannelElement (sbrEnvDataLeft, &cmonData->sbrBitbuf, hParametricStereo, sbrSyntaxFlags);
- break;
- case SBR_ID_CPE:
- payloadBits += encodeSbrChannelPairElement (sbrEnvDataLeft, sbrEnvDataRight, hParametricStereo, &cmonData->sbrBitbuf, coupling);
- break;
- default:
- /* we never should apply SBR to any other element type */
- FDK_ASSERT (0);
- }
-
- cmonData->sbrDataBits = payloadBits;
-
- return payloadBits;
-}
-
-#define MODE_FREQ_TANS 1
-#define MODE_NO_FREQ_TRAN 0
-#define LD_TRANSMISSION MODE_FREQ_TANS
-static int encodeFreqs (int mode) {
- return ((mode & MODE_FREQ_TANS) ? 1 : 0);
-}
-
-
-/*****************************************************************************
-
- functionname: encodeSbrSingleChannelElement
- description: encodes sbr SCE information
- returns: number of bits written
- input:
- output:
-
-*****************************************************************************/
-static INT
-encodeSbrSingleChannelElement (HANDLE_SBR_ENV_DATA sbrEnvData,
- HANDLE_FDK_BITSTREAM hBitStream
- ,HANDLE_PARAMETRIC_STEREO hParametricStereo
- ,UINT sbrSyntaxFlags
- )
-{
- INT i, payloadBits = 0;
-
- payloadBits += FDKwriteBits (hBitStream, 0, SI_SBR_DATA_EXTRA_BITS); /* no reserved bits */
-
- if (sbrEnvData->ldGrid) {
- if ( sbrEnvData->hSbrBSGrid->frameClass != FIXFIXonly ) {
- /* encode normal SbrGrid */
- payloadBits += encodeSbrGrid (sbrEnvData, hBitStream);
- } else {
- /* use FIXFIXonly frame Grid */
- payloadBits += encodeLowDelaySbrGrid ( sbrEnvData, hBitStream, encodeFreqs(LD_TRANSMISSION));
- }
- }
- else
- {
- if (sbrSyntaxFlags & SBR_SYNTAX_SCALABLE) {
- payloadBits += FDKwriteBits (hBitStream, 1, SI_SBR_COUPLING_BITS);
- }
- payloadBits += encodeSbrGrid (sbrEnvData, hBitStream);
- }
-
- payloadBits += encodeSbrDtdf (sbrEnvData, hBitStream);
-
- for (i = 0; i < sbrEnvData->noOfnoisebands; i++) {
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->sbr_invf_mode_vec[i], SI_SBR_INVF_MODE_BITS);
- }
-
- payloadBits += writeEnvelopeData (sbrEnvData, hBitStream, 0);
- payloadBits += writeNoiseLevelData (sbrEnvData, hBitStream, 0);
-
- payloadBits += writeSyntheticCodingData (sbrEnvData,hBitStream);
-
- payloadBits += encodeExtendedData(hParametricStereo, hBitStream);
-
- return payloadBits;
-}
-
-
-/*****************************************************************************
-
- functionname: encodeSbrChannelPairElement
- description: encodes sbr CPE information
- returns:
- input:
- output:
-
-*****************************************************************************/
-static INT
-encodeSbrChannelPairElement (HANDLE_SBR_ENV_DATA sbrEnvDataLeft,
- HANDLE_SBR_ENV_DATA sbrEnvDataRight,
- HANDLE_PARAMETRIC_STEREO hParametricStereo,
- HANDLE_FDK_BITSTREAM hBitStream,
- INT coupling)
-{
- INT payloadBits = 0;
- INT i = 0;
-
- payloadBits += FDKwriteBits (hBitStream, 0, SI_SBR_DATA_EXTRA_BITS); /* no reserved bits */
-
- payloadBits += FDKwriteBits (hBitStream, coupling, SI_SBR_COUPLING_BITS);
-
- if (coupling) {
- if (sbrEnvDataLeft->ldGrid) {
- if ( sbrEnvDataLeft->hSbrBSGrid->frameClass != FIXFIXonly ) {
- /* normal SbrGrid */
- payloadBits += encodeSbrGrid (sbrEnvDataLeft, hBitStream);
-
- } else {
- /* FIXFIXonly frame Grid */
- payloadBits += encodeLowDelaySbrGrid ( sbrEnvDataLeft, hBitStream, encodeFreqs(LD_TRANSMISSION));
- }
- } else
- payloadBits += encodeSbrGrid (sbrEnvDataLeft, hBitStream);
-
- payloadBits += encodeSbrDtdf (sbrEnvDataLeft, hBitStream);
- payloadBits += encodeSbrDtdf (sbrEnvDataRight, hBitStream);
-
- for (i = 0; i < sbrEnvDataLeft->noOfnoisebands; i++) {
- payloadBits += FDKwriteBits (hBitStream, sbrEnvDataLeft->sbr_invf_mode_vec[i], SI_SBR_INVF_MODE_BITS);
- }
-
- payloadBits += writeEnvelopeData (sbrEnvDataLeft, hBitStream,1);
- payloadBits += writeNoiseLevelData (sbrEnvDataLeft, hBitStream,1);
- payloadBits += writeEnvelopeData (sbrEnvDataRight, hBitStream,1);
- payloadBits += writeNoiseLevelData (sbrEnvDataRight, hBitStream,1);
-
- payloadBits += writeSyntheticCodingData (sbrEnvDataLeft,hBitStream);
- payloadBits += writeSyntheticCodingData (sbrEnvDataRight,hBitStream);
-
- } else { /* no coupling */
- FDK_ASSERT(sbrEnvDataLeft->ldGrid == sbrEnvDataRight->ldGrid);
-
- if (sbrEnvDataLeft->ldGrid || sbrEnvDataRight->ldGrid) {
- /* sbrEnvDataLeft (left channel) */
- if ( sbrEnvDataLeft->hSbrBSGrid->frameClass != FIXFIXonly) {
- /* no FIXFIXonly Frame so we dont need encodeLowDelaySbrGrid */
- /* normal SbrGrid */
- payloadBits += encodeSbrGrid (sbrEnvDataLeft, hBitStream);
-
- } else {
- /* FIXFIXonly frame Grid */
- payloadBits += encodeLowDelaySbrGrid ( sbrEnvDataLeft, hBitStream, encodeFreqs(LD_TRANSMISSION));
- }
-
- /* sbrEnvDataRight (right channel) */
- if ( sbrEnvDataRight->hSbrBSGrid->frameClass != FIXFIXonly) {
- /* no FIXFIXonly Frame so we dont need encodeLowDelaySbrGrid */
- /* normal SbrGrid */
- payloadBits += encodeSbrGrid (sbrEnvDataRight, hBitStream);
-
- } else {
- /* FIXFIXonly frame Grid */
- payloadBits += encodeLowDelaySbrGrid ( sbrEnvDataRight, hBitStream, encodeFreqs(LD_TRANSMISSION));
- }
- } else
- {
- payloadBits += encodeSbrGrid (sbrEnvDataLeft, hBitStream);
- payloadBits += encodeSbrGrid (sbrEnvDataRight, hBitStream);
- }
- payloadBits += encodeSbrDtdf (sbrEnvDataLeft, hBitStream);
- payloadBits += encodeSbrDtdf (sbrEnvDataRight, hBitStream);
-
- for (i = 0; i < sbrEnvDataLeft->noOfnoisebands; i++) {
- payloadBits += FDKwriteBits (hBitStream, sbrEnvDataLeft->sbr_invf_mode_vec[i],
- SI_SBR_INVF_MODE_BITS);
- }
- for (i = 0; i < sbrEnvDataRight->noOfnoisebands; i++) {
- payloadBits += FDKwriteBits (hBitStream, sbrEnvDataRight->sbr_invf_mode_vec[i],
- SI_SBR_INVF_MODE_BITS);
- }
-
- payloadBits += writeEnvelopeData (sbrEnvDataLeft, hBitStream,0);
- payloadBits += writeEnvelopeData (sbrEnvDataRight, hBitStream,0);
- payloadBits += writeNoiseLevelData (sbrEnvDataLeft, hBitStream,0);
- payloadBits += writeNoiseLevelData (sbrEnvDataRight, hBitStream,0);
-
- payloadBits += writeSyntheticCodingData (sbrEnvDataLeft,hBitStream);
- payloadBits += writeSyntheticCodingData (sbrEnvDataRight,hBitStream);
-
- } /* coupling */
-
- payloadBits += encodeExtendedData(hParametricStereo, hBitStream);
-
- return payloadBits;
-}
-
-static INT ceil_ln2(INT x)
-{
- INT tmp=-1;
- while((1<<++tmp) < x);
- return(tmp);
-}
-
-
-/*****************************************************************************
-
- functionname: encodeSbrGrid
- description: if hBitStream != NULL writes bits that describes the
- time/frequency grouping of a frame; else counts them only
- returns: number of bits written or counted
- input:
- output:
-
-*****************************************************************************/
-static INT
-encodeSbrGrid (HANDLE_SBR_ENV_DATA sbrEnvData, HANDLE_FDK_BITSTREAM hBitStream)
-{
- INT payloadBits = 0;
- INT i, temp;
- INT bufferFrameStart = sbrEnvData->hSbrBSGrid->bufferFrameStart;
- INT numberTimeSlots = sbrEnvData->hSbrBSGrid->numberTimeSlots;
-
- if (sbrEnvData->ldGrid)
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hSbrBSGrid->frameClass,
- SBR_CLA_BITS_LD);
- else
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hSbrBSGrid->frameClass,
- SBR_CLA_BITS);
-
- switch (sbrEnvData->hSbrBSGrid->frameClass) {
- case FIXFIXonly:
- FDK_ASSERT(0 /* Fatal error in encodeSbrGrid! */);
- break;
- case FIXFIX:
- temp = ceil_ln2(sbrEnvData->hSbrBSGrid->bs_num_env);
- payloadBits += FDKwriteBits (hBitStream, temp, SBR_ENV_BITS);
- if ((sbrEnvData->ldGrid) && (sbrEnvData->hSbrBSGrid->bs_num_env==1))
- payloadBits += FDKwriteBits(hBitStream, sbrEnvData->currentAmpResFF, SI_SBR_AMP_RES_BITS);
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->hSbrBSGrid->v_f[0], SBR_RES_BITS);
-
- break;
-
- case FIXVAR:
- case VARFIX:
- if (sbrEnvData->hSbrBSGrid->frameClass == FIXVAR)
- temp = sbrEnvData->hSbrBSGrid->bs_abs_bord - (bufferFrameStart + numberTimeSlots);
- else
- temp = sbrEnvData->hSbrBSGrid->bs_abs_bord - bufferFrameStart;
-
- payloadBits += FDKwriteBits (hBitStream, temp, SBR_ABS_BITS);
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->hSbrBSGrid->n, SBR_NUM_BITS);
-
- for (i = 0; i < sbrEnvData->hSbrBSGrid->n; i++) {
- temp = (sbrEnvData->hSbrBSGrid->bs_rel_bord[i] - 2) >> 1;
- payloadBits += FDKwriteBits (hBitStream, temp, SBR_REL_BITS);
- }
-
- temp = ceil_ln2(sbrEnvData->hSbrBSGrid->n + 2);
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->hSbrBSGrid->p, temp);
-
- for (i = 0; i < sbrEnvData->hSbrBSGrid->n + 1; i++) {
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->hSbrBSGrid->v_f[i],
- SBR_RES_BITS);
- }
- break;
-
- case VARVAR:
- temp = sbrEnvData->hSbrBSGrid->bs_abs_bord_0 - bufferFrameStart;
- payloadBits += FDKwriteBits (hBitStream, temp, SBR_ABS_BITS);
- temp = sbrEnvData->hSbrBSGrid->bs_abs_bord_1 - (bufferFrameStart + numberTimeSlots);
- payloadBits += FDKwriteBits (hBitStream, temp, SBR_ABS_BITS);
-
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->hSbrBSGrid->bs_num_rel_0, SBR_NUM_BITS);
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->hSbrBSGrid->bs_num_rel_1, SBR_NUM_BITS);
-
- for (i = 0; i < sbrEnvData->hSbrBSGrid->bs_num_rel_0; i++) {
- temp = (sbrEnvData->hSbrBSGrid->bs_rel_bord_0[i] - 2) >> 1;
- payloadBits += FDKwriteBits (hBitStream, temp, SBR_REL_BITS);
- }
-
- for (i = 0; i < sbrEnvData->hSbrBSGrid->bs_num_rel_1; i++) {
- temp = (sbrEnvData->hSbrBSGrid->bs_rel_bord_1[i] - 2) >> 1;
- payloadBits += FDKwriteBits (hBitStream, temp, SBR_REL_BITS);
- }
-
- temp = ceil_ln2(sbrEnvData->hSbrBSGrid->bs_num_rel_0 +
- sbrEnvData->hSbrBSGrid->bs_num_rel_1 + 2);
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->hSbrBSGrid->p, temp);
-
- temp = sbrEnvData->hSbrBSGrid->bs_num_rel_0 +
- sbrEnvData->hSbrBSGrid->bs_num_rel_1 + 1;
-
- for (i = 0; i < temp; i++) {
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->hSbrBSGrid->v_fLR[i],
- SBR_RES_BITS);
- }
- break;
- }
-
- return payloadBits;
-}
-
-#define SBR_CLA_BITS_LD 1
-/*****************************************************************************
-
- functionname: encodeLowDelaySbrGrid
- description: if hBitStream != NULL writes bits that describes the
- time/frequency grouping of a frame;
- else counts them only
- (this function only write the FIXFIXonly Bitstream data)
- returns: number of bits written or counted
- input:
- output:
-
-*****************************************************************************/
-static int
-encodeLowDelaySbrGrid ( HANDLE_SBR_ENV_DATA sbrEnvData,
- HANDLE_FDK_BITSTREAM hBitStream,
- int transmitFreqs
- )
-{
- int payloadBits = 0;
- int i;
-
- /* write FIXFIXonly Grid */
- /* write frameClass [1 bit] for FIXFIXonly Grid */
- payloadBits += FDKwriteBits(hBitStream, 1, SBR_CLA_BITS_LD);
-
- /* absolute Borders are fix: 0,X,X,X,nTimeSlots; so we dont have to transmit them */
- /* only transmit the transient position! */
- /* with this info (b1) we can reconstruct the Frame on Decoder side : */
- /* border[0] = 0; border[1] = b1; border[2]=b1+2; border[3] = nrTimeSlots */
-
- /* use 3 or 4bits for transient border (border) */
- if (sbrEnvData->hSbrBSGrid->numberTimeSlots == 8)
- payloadBits += FDKwriteBits ( hBitStream, sbrEnvData->hSbrBSGrid->bs_abs_bord, 3);
- else
- payloadBits += FDKwriteBits ( hBitStream, sbrEnvData->hSbrBSGrid->bs_abs_bord, 4);
-
- if (transmitFreqs) {
- /* write FreqRes grid */
- for (i = 0; i < sbrEnvData->hSbrBSGrid->bs_num_env; i++) {
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->hSbrBSGrid->v_f[i], SBR_RES_BITS);
- }
- }
-
- return payloadBits;
-}
-
-/*****************************************************************************
-
- functionname: encodeSbrDtdf
- description: writes bits that describes the direction of the envelopes of a frame
- returns: number of bits written
- input:
- output:
-
-*****************************************************************************/
-static INT
-encodeSbrDtdf (HANDLE_SBR_ENV_DATA sbrEnvData, HANDLE_FDK_BITSTREAM hBitStream)
-{
- INT i, payloadBits = 0, noOfNoiseEnvelopes;
-
- noOfNoiseEnvelopes = sbrEnvData->noOfEnvelopes > 1 ? 2 : 1;
-
- for (i = 0; i < sbrEnvData->noOfEnvelopes; ++i) {
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->domain_vec[i], SBR_DIR_BITS);
- }
- for (i = 0; i < noOfNoiseEnvelopes; ++i) {
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->domain_vec_noise[i], SBR_DIR_BITS);
- }
-
- return payloadBits;
-}
-
-
-/*****************************************************************************
-
- functionname: writeNoiseLevelData
- description: writes bits corresponding to the noise-floor-level
- returns: number of bits written
- input:
- output:
-
-*****************************************************************************/
-static INT
-writeNoiseLevelData (HANDLE_SBR_ENV_DATA sbrEnvData, HANDLE_FDK_BITSTREAM hBitStream, INT coupling)
-{
- INT j, i, payloadBits = 0;
- INT nNoiseEnvelopes = sbrEnvData->noOfEnvelopes > 1 ? 2 : 1;
-
- for (i = 0; i < nNoiseEnvelopes; i++) {
- switch (sbrEnvData->domain_vec_noise[i]) {
- case FREQ:
- if (coupling && sbrEnvData->balance) {
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->sbr_noise_levels[i * sbrEnvData->noOfnoisebands],
- sbrEnvData->si_sbr_start_noise_bits_balance);
- } else {
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->sbr_noise_levels[i * sbrEnvData->noOfnoisebands],
- sbrEnvData->si_sbr_start_noise_bits);
- }
-
- for (j = 1 + i * sbrEnvData->noOfnoisebands; j < (sbrEnvData->noOfnoisebands * (1 + i)); j++) {
- if (coupling) {
- if (sbrEnvData->balance) {
- /* coupling && balance */
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hufftableNoiseBalanceFreqC[sbrEnvData->sbr_noise_levels[j] +
- CODE_BOOK_SCF_LAV_BALANCE11],
- sbrEnvData->hufftableNoiseBalanceFreqL[sbrEnvData->sbr_noise_levels[j] +
- CODE_BOOK_SCF_LAV_BALANCE11]);
- } else {
- /* coupling && !balance */
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hufftableNoiseLevelFreqC[sbrEnvData->sbr_noise_levels[j] +
- CODE_BOOK_SCF_LAV11],
- sbrEnvData->hufftableNoiseLevelFreqL[sbrEnvData->sbr_noise_levels[j] +
- CODE_BOOK_SCF_LAV11]);
- }
- } else {
- /* !coupling */
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hufftableNoiseFreqC[sbrEnvData->sbr_noise_levels[j] +
- CODE_BOOK_SCF_LAV11],
- sbrEnvData->hufftableNoiseFreqL[sbrEnvData->sbr_noise_levels[j] +
- CODE_BOOK_SCF_LAV11]);
- }
- }
- break;
-
- case TIME:
- for (j = i * sbrEnvData->noOfnoisebands; j < (sbrEnvData->noOfnoisebands * (1 + i)); j++) {
- if (coupling) {
- if (sbrEnvData->balance) {
- /* coupling && balance */
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hufftableNoiseBalanceTimeC[sbrEnvData->sbr_noise_levels[j] +
- CODE_BOOK_SCF_LAV_BALANCE11],
- sbrEnvData->hufftableNoiseBalanceTimeL[sbrEnvData->sbr_noise_levels[j] +
- CODE_BOOK_SCF_LAV_BALANCE11]);
- } else {
- /* coupling && !balance */
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hufftableNoiseLevelTimeC[sbrEnvData->sbr_noise_levels[j] +
- CODE_BOOK_SCF_LAV11],
- sbrEnvData->hufftableNoiseLevelTimeL[sbrEnvData->sbr_noise_levels[j] +
- CODE_BOOK_SCF_LAV11]);
- }
- } else {
- /* !coupling */
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hufftableNoiseLevelTimeC[sbrEnvData->sbr_noise_levels[j] +
- CODE_BOOK_SCF_LAV11],
- sbrEnvData->hufftableNoiseLevelTimeL[sbrEnvData->sbr_noise_levels[j] +
- CODE_BOOK_SCF_LAV11]);
- }
- }
- break;
- }
- }
- return payloadBits;
-}
-
-
-/*****************************************************************************
-
- functionname: writeEnvelopeData
- description: writes bits corresponding to the envelope
- returns: number of bits written
- input:
- output:
-
-*****************************************************************************/
-static INT
-writeEnvelopeData (HANDLE_SBR_ENV_DATA sbrEnvData, HANDLE_FDK_BITSTREAM hBitStream, INT coupling)
-{
- INT payloadBits = 0, j, i, delta;
-
- for (j = 0; j < sbrEnvData->noOfEnvelopes; j++) { /* loop over all envelopes */
- if (sbrEnvData->domain_vec[j] == FREQ) {
- if (coupling && sbrEnvData->balance) {
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->ienvelope[j][0], sbrEnvData->si_sbr_start_env_bits_balance);
- } else {
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->ienvelope[j][0], sbrEnvData->si_sbr_start_env_bits);
- }
- }
-
- for (i = 1 - sbrEnvData->domain_vec[j]; i < sbrEnvData->noScfBands[j]; i++) {
- delta = sbrEnvData->ienvelope[j][i];
- if (coupling && sbrEnvData->balance) {
- FDK_ASSERT (fixp_abs (delta) <= sbrEnvData->codeBookScfLavBalance);
- } else {
- FDK_ASSERT (fixp_abs (delta) <= sbrEnvData->codeBookScfLav);
- }
- if (coupling) {
- if (sbrEnvData->balance) {
- if (sbrEnvData->domain_vec[j]) {
- /* coupling && balance && TIME */
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hufftableBalanceTimeC[delta + sbrEnvData->codeBookScfLavBalance],
- sbrEnvData->hufftableBalanceTimeL[delta + sbrEnvData->codeBookScfLavBalance]);
- } else {
- /* coupling && balance && FREQ */
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hufftableBalanceFreqC[delta + sbrEnvData->codeBookScfLavBalance],
- sbrEnvData->hufftableBalanceFreqL[delta + sbrEnvData->codeBookScfLavBalance]);
- }
- } else {
- if (sbrEnvData->domain_vec[j]) {
- /* coupling && !balance && TIME */
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hufftableLevelTimeC[delta + sbrEnvData->codeBookScfLav],
- sbrEnvData->hufftableLevelTimeL[delta + sbrEnvData->codeBookScfLav]);
- } else {
- /* coupling && !balance && FREQ */
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hufftableLevelFreqC[delta + sbrEnvData->codeBookScfLav],
- sbrEnvData->hufftableLevelFreqL[delta + sbrEnvData->codeBookScfLav]);
- }
- }
- } else {
- if (sbrEnvData->domain_vec[j]) {
- /* !coupling && TIME */
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hufftableTimeC[delta + sbrEnvData->codeBookScfLav],
- sbrEnvData->hufftableTimeL[delta + sbrEnvData->codeBookScfLav]);
- } else {
- /* !coupling && FREQ */
- payloadBits += FDKwriteBits (hBitStream,
- sbrEnvData->hufftableFreqC[delta + sbrEnvData->codeBookScfLav],
- sbrEnvData->hufftableFreqL[delta + sbrEnvData->codeBookScfLav]);
- }
- }
- }
- }
- return payloadBits;
-}
-
-
-/*****************************************************************************
-
- functionname: encodeExtendedData
- description: writes bits corresponding to the extended data
- returns: number of bits written
- input:
- output:
-
-*****************************************************************************/
-static INT encodeExtendedData (HANDLE_PARAMETRIC_STEREO hParametricStereo,
- HANDLE_FDK_BITSTREAM hBitStream)
-{
- INT extDataSize;
- INT payloadBits = 0;
-
- extDataSize = getSbrExtendedDataSize(hParametricStereo);
-
-
- if (extDataSize != 0) {
- INT maxExtSize = (1<<SI_SBR_EXTENSION_SIZE_BITS) - 1;
- INT writtenNoBits = 0; /* needed to byte align the extended data */
-
- payloadBits += FDKwriteBits (hBitStream, 1, SI_SBR_EXTENDED_DATA_BITS);
- FDK_ASSERT(extDataSize <= SBR_EXTENDED_DATA_MAX_CNT);
-
- if (extDataSize < maxExtSize) {
- payloadBits += FDKwriteBits (hBitStream, extDataSize, SI_SBR_EXTENSION_SIZE_BITS);
- } else {
- payloadBits += FDKwriteBits (hBitStream, maxExtSize, SI_SBR_EXTENSION_SIZE_BITS);
- payloadBits += FDKwriteBits (hBitStream, extDataSize - maxExtSize, SI_SBR_EXTENSION_ESC_COUNT_BITS);
- }
-
- /* parametric coding signalled here? */
- if(hParametricStereo){
- writtenNoBits += FDKwriteBits (hBitStream, EXTENSION_ID_PS_CODING, SI_SBR_EXTENSION_ID_BITS);
- writtenNoBits += FDKsbrEnc_PSEnc_WritePSData(hParametricStereo, hBitStream);
- }
-
- payloadBits += writtenNoBits;
-
- /* byte alignment */
- writtenNoBits = writtenNoBits%8;
- if(writtenNoBits)
- payloadBits += FDKwriteBits(hBitStream, 0, (8 - writtenNoBits));
- } else {
- payloadBits += FDKwriteBits (hBitStream, 0, SI_SBR_EXTENDED_DATA_BITS);
- }
-
- return payloadBits;
-}
-
-
-/*****************************************************************************
-
- functionname: writeSyntheticCodingData
- description: writes bits corresponding to the "synthetic-coding"-extension
- returns: number of bits written
- input:
- output:
-
-*****************************************************************************/
-static INT writeSyntheticCodingData (HANDLE_SBR_ENV_DATA sbrEnvData,
- HANDLE_FDK_BITSTREAM hBitStream)
-
-{
- INT i;
- INT payloadBits = 0;
-
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->addHarmonicFlag, 1);
-
- if (sbrEnvData->addHarmonicFlag) {
- for (i = 0; i < sbrEnvData->noHarmonics; i++) {
- payloadBits += FDKwriteBits (hBitStream, sbrEnvData->addHarmonic[i], 1);
- }
- }
-
- return payloadBits;
-}
-
-/*****************************************************************************
-
- functionname: getSbrExtendedDataSize
- description: counts the number of bits needed for encoding the
- extended data (including extension id)
-
- returns: number of bits needed for the extended data
- input:
- output:
-
-*****************************************************************************/
-static INT
-getSbrExtendedDataSize (HANDLE_PARAMETRIC_STEREO hParametricStereo)
-{
- INT extDataBits = 0;
-
- /* add your new extended data counting methods here */
-
- /*
- no extended data
- */
-
- if(hParametricStereo){
- /* PS extended data */
- extDataBits += SI_SBR_EXTENSION_ID_BITS;
- extDataBits += FDKsbrEnc_PSEnc_WritePSData(hParametricStereo, NULL);
- }
-
- return (extDataBits+7) >> 3;
-}
-
-
-
-
-