diff options
author | Fraunhofer IIS FDK <audio-fdk@iis.fraunhofer.de> | 2018-02-26 20:17:00 +0100 |
---|---|---|
committer | Jean-Michel Trivi <jmtrivi@google.com> | 2018-04-19 11:21:15 -0700 |
commit | 6cfabd35363c3ef5e3b209b867169a500b3ccc3c (patch) | |
tree | 01c0a19f2735e8b5d2407555fe992d4230d089eb /libFDK/include/FDK_bitstream.h | |
parent | 6288a1e34c4dede4c2806beb1736ece6580558c7 (diff) | |
download | fdk-aac-6cfabd35363c3ef5e3b209b867169a500b3ccc3c.tar.gz fdk-aac-6cfabd35363c3ef5e3b209b867169a500b3ccc3c.tar.bz2 fdk-aac-6cfabd35363c3ef5e3b209b867169a500b3ccc3c.zip |
Upgrade to FDKv2
Bug: 71430241
Test: CTS DecoderTest and DecoderTestAacDrc
original-Change-Id: Iaa20f749b8a04d553b20247cfe1a8930ebbabe30
Apply clang-format also on header files.
original-Change-Id: I14de1ef16bbc79ec0283e745f98356a10efeb2e4
Fixes for MPEG-D DRC
original-Change-Id: If1de2d74bbbac84b3f67de3b88b83f6a23b8a15c
Catch unsupported tw_mdct at an early stage
original-Change-Id: Ied9dd00d754162a0e3ca1ae3e6b854315d818afe
Fixing PVC transition frames
original-Change-Id: Ib75725abe39252806c32d71176308f2c03547a4e
Move qmf bands sanity check
original-Change-Id: Iab540c3013c174d9490d2ae100a4576f51d8dbc4
Initialize scaling variable
original-Change-Id: I3c4087101b70e998c71c1689b122b0d7762e0f9e
Add 16 qmf band configuration to getSlotNrgHQ()
original-Change-Id: I49a5d30f703a1b126ff163df9656db2540df21f1
Always apply byte alignment at the end of the AudioMuxElement
original-Change-Id: I42d560287506d65d4c3de8bfe3eb9a4ebeb4efc7
Setup SBR element only if no parse error exists
original-Change-Id: I1915b73704bc80ab882b9173d6bec59cbd073676
Additional array index check in HCR
original-Change-Id: I18cc6e501ea683b5009f1bbee26de8ddd04d8267
Fix fade-in index selection in concealment module
original-Change-Id: Ibf802ed6ed8c05e9257e1f3b6d0ac1162e9b81c1
Enable explicit backward compatible parser for AAC_LD
original-Change-Id: I27e9c678dcb5d40ed760a6d1e06609563d02482d
Skip spatial specific config in explicit backward compatible ASC
original-Change-Id: Iff7cc365561319e886090cedf30533f562ea4d6e
Update flags description in decoder API
original-Change-Id: I9a5b4f8da76bb652f5580cbd3ba9760425c43830
Add QMF domain reset function
original-Change-Id: I4f89a8a2c0277d18103380134e4ed86996e9d8d6
DRC upgrade v2.1.0
original-Change-Id: I5731c0540139dab220094cd978ef42099fc45b74
Fix integer overflow in sqrtFixp_lookup()
original-Change-Id: I429a6f0d19aa2cc957e0f181066f0ca73968c914
Fix integer overflow in invSqrtNorm2()
original-Change-Id: I84de5cbf9fb3adeb611db203fe492fabf4eb6155
Fix integer overflow in GenerateRandomVector()
original-Change-Id: I3118a641008bd9484d479e5b0b1ee2b5d7d44d74
Fix integer overflow in adjustTimeSlot_EldGrid()
original-Change-Id: I29d503c247c5c8282349b79df940416a512fb9d5
Fix integer overflow in FDKsbrEnc_codeEnvelope()
original-Change-Id: I6b34b61ebb9d525b0c651ed08de2befc1f801449
Follow-up on: Fix integer overflow in adjustTimeSlot_EldGrid()
original-Change-Id: I6f8f578cc7089e5eb7c7b93e580b72ca35ad689a
Fix integer overflow in get_pk_v2()
original-Change-Id: I63375bed40d45867f6eeaa72b20b1f33e815938c
Fix integer overflow in Syn_filt_zero()
original-Change-Id: Ie0c02fdfbe03988f9d3b20d10cd9fe4c002d1279
Fix integer overflow in CFac_CalcFacSignal()
original-Change-Id: Id2d767c40066c591b51768e978eb8af3b803f0c5
Fix integer overflow in FDKaacEnc_FDKaacEnc_calcPeNoAH()
original-Change-Id: Idcbd0f4a51ae2550ed106aa6f3d678d1f9724841
Fix integer overflow in sbrDecoder_calculateGainVec()
original-Change-Id: I7081bcbe29c5cede9821b38d93de07c7add2d507
Fix integer overflow in CLpc_SynthesisLattice()
original-Change-Id: I4a95ddc18de150102352d4a1845f06094764c881
Fix integer overflow in Pred_Lt4()
original-Change-Id: I4dbd012b2de7d07c3e70a47b92e3bfae8dbc750a
Fix integer overflow in FDKsbrEnc_InitSbrFastTransientDetector()
original-Change-Id: I788cbec1a4a00f44c2f3a72ad7a4afa219807d04
Fix unsigned integer overflow in FDKaacEnc_WriteBitstream()
original-Change-Id: I68fc75166e7d2cd5cd45b18dbe3d8c2a92f1822a
Fix unsigned integer overflow in FDK_MetadataEnc_Init()
original-Change-Id: Ie8d025f9bcdb2442c704bd196e61065c03c10af4
Fix overflow in pseudo random number generators
original-Change-Id: I3e2551ee01356297ca14e3788436ede80bd5513c
Fix unsigned integer overflow in sbrDecoder_Parse()
original-Change-Id: I3f231b2f437e9c37db4d5b964164686710eee971
Fix unsigned integer overflow in longsub()
original-Change-Id: I73c2bc50415cac26f1f5a29e125bbe75f9180a6e
Fix unsigned integer overflow in CAacDecoder_DecodeFrame()
original-Change-Id: Ifce2db4b1454b46fa5f887e9d383f1cc43b291e4
Fix overflow at CLpdChannelStream_Read()
original-Change-Id: Idb9d822ce3a4272e4794b643644f5434e2d4bf3f
Fix unsigned integer overflow in Hcr_State_BODY_SIGN_ESC__ESC_WORD()
original-Change-Id: I1ccf77c0015684b85534c5eb97162740a870b71c
Fix unsigned integer overflow in UsacConfig_Parse()
original-Change-Id: Ie6d27f84b6ae7eef092ecbff4447941c77864d9f
Fix unsigned integer overflow in aacDecoder_drcParse()
original-Change-Id: I713f28e883eea3d70b6fa56a7b8f8c22bcf66ca0
Fix unsigned integer overflow in aacDecoder_drcReadCompression()
original-Change-Id: Ia34dfeb88c4705c558bce34314f584965cafcf7a
Fix unsigned integer overflow in CDataStreamElement_Read()
original-Change-Id: Iae896cc1d11f0a893d21be6aa90bd3e60a2c25f0
Fix unsigned integer overflow in transportDec_AdjustEndOfAccessUnit()
original-Change-Id: I64cf29a153ee784bb4a16fdc088baabebc0007dc
Fix unsigned integer overflow in transportDec_GetAuBitsRemaining()
original-Change-Id: I975b3420faa9c16a041874ba0db82e92035962e4
Fix unsigned integer overflow in extractExtendedData()
original-Change-Id: I2a59eb09e2053cfb58dfb75fcecfad6b85a80a8f
Fix signed integer overflow in CAacDecoder_ExtPayloadParse()
original-Change-Id: I4ad5ca4e3b83b5d964f1c2f8c5e7b17c477c7929
Fix unsigned integer overflow in CAacDecoder_DecodeFrame()
original-Change-Id: I29a39df77d45c52a0c9c5c83c1ba81f8d0f25090
Follow-up on: Fix integer overflow in CLpc_SynthesisLattice()
original-Change-Id: I8fb194ffc073a3432a380845be71036a272d388f
Fix signed integer overflow in _interpolateDrcGain()
original-Change-Id: I879ec9ab14005069a7c47faf80e8bc6e03d22e60
Fix unsigned integer overflow in FDKreadBits()
original-Change-Id: I1f47a6a8037ff70375aa8844947d5681bb4287ad
Fix unsigned integer overflow in FDKbyteAlign()
original-Change-Id: Id5f3a11a0c9e50fc6f76ed6c572dbd4e9f2af766
Fix unsigned integer overflow in FDK_get32()
original-Change-Id: I9d33b8e97e3d38cbb80629cb859266ca0acdce96
Fix unsigned integer overflow in FDK_pushBack()
original-Change-Id: Ic87f899bc8c6acf7a377a8ca7f3ba74c3a1e1c19
Fix unsigned integer overflow in FDK_pushForward()
original-Change-Id: I3b754382f6776a34be1602e66694ede8e0b8effc
Fix unsigned integer overflow in ReadPsData()
original-Change-Id: I25361664ba8139e32bbbef2ca8c106a606ce9c37
Fix signed integer overflow in E_UTIL_residu()
original-Change-Id: I8c3abd1f437ee869caa8fb5903ce7d3d641b6aad
REVERT: Follow-up on: Integer overflow in CLpc_SynthesisLattice().
original-Change-Id: I3d340099acb0414795c8dfbe6362bc0a8f045f9b
Follow-up on: Fix integer overflow in CLpc_SynthesisLattice()
original-Change-Id: I4aedb8b3a187064e9f4d985175aa55bb99cc7590
Follow-up on: Fix unsigned integer overflow in aacDecoder_drcParse()
original-Change-Id: I2aa2e13916213bf52a67e8b0518e7bf7e57fb37d
Fix integer overflow in acelp
original-Change-Id: Ie6390c136d84055f8b728aefbe4ebef6e029dc77
Fix unsigned integer overflow in aacDecoder_UpdateBitStreamCounters()
original-Change-Id: I391ffd97ddb0b2c184cba76139bfb356a3b4d2e2
Adjust concealment default settings
original-Change-Id: I6a95db935a327c47df348030bcceafcb29f54b21
Saturate estimatedStartPos
original-Change-Id: I27be2085e0ae83ec9501409f65e003f6bcba1ab6
Negative shift exponent in _interpolateDrcGain()
original-Change-Id: I18edb26b26d002aafd5e633d4914960f7a359c29
Negative shift exponent in calculateICC()
original-Change-Id: I3dcd2ae98d2eb70ee0d59750863cbb2a6f4f8aba
Too large shift exponent in FDK_put()
original-Change-Id: Ib7d9aaa434d2d8de4a13b720ca0464b31ca9b671
Too large shift exponent in CalcInvLdData()
original-Change-Id: I43e6e78d4cd12daeb1dcd5d82d1798bdc2550262
Member access within null pointer of type SBR_CHANNEL
original-Change-Id: Idc5e4ea8997810376d2f36bbdf628923b135b097
Member access within null pointer of type CpePersistentData
original-Change-Id: Ib6c91cb0d37882768e5baf63324e429589de0d9d
Member access within null pointer FDKaacEnc_psyMain()
original-Change-Id: I7729b7f4479970531d9dc823abff63ca52e01997
Member access within null pointer FDKaacEnc_GetPnsParam()
original-Change-Id: I9aa3b9f3456ae2e0f7483dbd5b3dde95fc62da39
Member access within null pointer FDKsbrEnc_EnvEncodeFrame()
original-Change-Id: I67936f90ea714e90b3e81bc0dd1472cc713eb23a
Add HCR sanity check
original-Change-Id: I6c1d9732ebcf6af12f50b7641400752f74be39f7
Fix memory issue for HBE edge case with 8:3 SBR
original-Change-Id: I11ea58a61e69fbe8bf75034b640baee3011e63e9
Additional SBR parametrization sanity check for ELD
original-Change-Id: Ie26026fbfe174c2c7b3691f6218b5ce63e322140
Add MPEG-D DRC channel layout check
original-Change-Id: Iea70a74f171b227cce636a9eac4ba662777a2f72
Additional out-of-bounds checks in MPEG-D DRC
original-Change-Id: Ife4a8c3452c6fde8a0a09e941154a39a769777d4
Change-Id: Ic63cb2f628720f54fe9b572b0cb528e2599c624e
Diffstat (limited to 'libFDK/include/FDK_bitstream.h')
-rw-r--r-- | libFDK/include/FDK_bitstream.h | 720 |
1 files changed, 395 insertions, 325 deletions
diff --git a/libFDK/include/FDK_bitstream.h b/libFDK/include/FDK_bitstream.h index fc8d7de..49eeeaf 100644 --- a/libFDK/include/FDK_bitstream.h +++ b/libFDK/include/FDK_bitstream.h @@ -1,74 +1,85 @@ - -/* ----------------------------------------------------------------------------------------------------------- +/* ----------------------------------------------------------------------------- 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. +© Copyright 1995 - 2018 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. +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: +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 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 +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. +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. +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." +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. +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. +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. +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 @@ -79,19 +90,18 @@ Am Wolfsmantel 33 www.iis.fraunhofer.de/amm amm-info@iis.fraunhofer.de ------------------------------------------------------------------------------------------------------------ */ +----------------------------------------------------------------------------- */ -/*************************** Fraunhofer IIS FDK Tools *********************** +/******************* Library for basic calculation routines ******************** Author(s): M. Lohwasser - Description: bitstream interface to bitbuffer routines -******************************************************************************/ - -#ifndef __FDK_BITSTREAM_H__ -#define __FDK_BITSTREAM_H__ + Description: bitstream interface to bitbuffer routines +*******************************************************************************/ +#ifndef FDK_BITSTREAM_H +#define FDK_BITSTREAM_H #include "FDK_bitbuffer.h" #include "machine_type.h" @@ -100,21 +110,18 @@ amm-info@iis.fraunhofer.de #define CACHE_BITS 32 -typedef enum { - BS_READER, - BS_WRITER -} FDK_BS_CFG; +#define BUFSIZE_DUMMY_VALUE MAX_BUFSIZE_BYTES +typedef enum { BS_READER, BS_WRITER } FDK_BS_CFG; -typedef struct -{ - UINT CacheWord ; - UINT BitsInCache ; +typedef struct { + UINT CacheWord; + UINT BitsInCache; FDK_BITBUF hBitBuf; - UINT ConfigCache ; + UINT ConfigCache; } FDK_BITSTREAM; -typedef FDK_BITSTREAM* HANDLE_FDK_BITSTREAM; +typedef FDK_BITSTREAM *HANDLE_FDK_BITSTREAM; /** * \brief CreateBitStream Function. @@ -122,50 +129,48 @@ typedef FDK_BITSTREAM* HANDLE_FDK_BITSTREAM; * Create and initialize bitstream with extern allocated buffer. * * \param pBuffer Pointer to BitBuffer array. - * \param bufSize Length of BitBuffer array. (awaits size 2^n) + * \param bufSize Length of BitBuffer array. (awaits size 2^n and <= + * MAX_BUFSIZE_BYTES) * \param config Initialize BitStream as Reader or Writer. */ FDK_INLINE -HANDLE_FDK_BITSTREAM FDKcreateBitStream (UCHAR *pBuffer, - UINT bufSize, - FDK_BS_CFG config = BS_READER) -{ - HANDLE_FDK_BITSTREAM hBitStream = (HANDLE_FDK_BITSTREAM) FDKcalloc(1, sizeof(FDK_BITSTREAM)); - FDK_InitBitBuffer(&hBitStream->hBitBuf, pBuffer, bufSize, 0) ; +HANDLE_FDK_BITSTREAM FDKcreateBitStream(UCHAR *pBuffer, UINT bufSize, + FDK_BS_CFG config = BS_READER) { + HANDLE_FDK_BITSTREAM hBitStream = + (HANDLE_FDK_BITSTREAM)FDKcalloc(1, sizeof(FDK_BITSTREAM)); + if (hBitStream == NULL) return NULL; + FDK_InitBitBuffer(&hBitStream->hBitBuf, pBuffer, bufSize, 0); /* init cache */ - hBitStream->CacheWord = hBitStream->BitsInCache = 0 ; - hBitStream->ConfigCache = config ; + hBitStream->CacheWord = hBitStream->BitsInCache = 0; + hBitStream->ConfigCache = config; - return hBitStream ; + return hBitStream; } - /** - * \brief Initialize BistreamBuffer. BitBuffer can point to filled BitBuffer array . + * \brief Initialize BistreamBuffer. BitBuffer can point to filled BitBuffer + * array . * * \param hBitStream HANDLE_FDK_BITSTREAM handle * \param pBuffer Pointer to BitBuffer array. - * \param bufSize Length of BitBuffer array. (awaits size 2^n) + * \param bufSize Length of BitBuffer array in bytes. (awaits size 2^n and <= + * MAX_BUFSIZE_BYTES) * \param validBits Number of valid BitBuffer filled Bits. * \param config Initialize BitStream as Reader or Writer. * \return void */ FDK_INLINE -void FDKinitBitStream (HANDLE_FDK_BITSTREAM hBitStream, - UCHAR *pBuffer, - UINT bufSize, - UINT validBits, - FDK_BS_CFG config = BS_READER) -{ - FDK_InitBitBuffer(&hBitStream->hBitBuf, pBuffer, bufSize, validBits) ; +void FDKinitBitStream(HANDLE_FDK_BITSTREAM hBitStream, UCHAR *pBuffer, + UINT bufSize, UINT validBits, + FDK_BS_CFG config = BS_READER) { + FDK_InitBitBuffer(&hBitStream->hBitBuf, pBuffer, bufSize, validBits); /* init cache */ - hBitStream->CacheWord = hBitStream->BitsInCache = 0 ; - hBitStream->ConfigCache = config ; + hBitStream->CacheWord = hBitStream->BitsInCache = 0; + hBitStream->ConfigCache = config; } - /** * \brief ResetBitbuffer Function. Reset states in BitBuffer and Cache. * @@ -173,183 +178,206 @@ void FDKinitBitStream (HANDLE_FDK_BITSTREAM hBitStream, * \param config Initialize BitStream as Reader or Writer. * \return void */ -FDK_INLINE void FDKresetBitbuffer( HANDLE_FDK_BITSTREAM hBitStream, FDK_BS_CFG config = BS_READER) -{ - FDK_ResetBitBuffer( &hBitStream->hBitBuf ) ; +FDK_INLINE void FDKresetBitbuffer(HANDLE_FDK_BITSTREAM hBitStream, + FDK_BS_CFG config = BS_READER) { + FDK_ResetBitBuffer(&hBitStream->hBitBuf); /* init cache */ - hBitStream->CacheWord = hBitStream->BitsInCache = 0 ; - hBitStream->ConfigCache = config ; + hBitStream->CacheWord = hBitStream->BitsInCache = 0; + hBitStream->ConfigCache = config; } - /** DeleteBitStream. Deletes the in Create Bitstream allocated BitStream and BitBuffer. */ -FDK_INLINE void FDKdeleteBitStream (HANDLE_FDK_BITSTREAM hBitStream) -{ - FDK_DeleteBitBuffer(&hBitStream->hBitBuf) ; - FDKfree(hBitStream) ; +FDK_INLINE void FDKdeleteBitStream(HANDLE_FDK_BITSTREAM hBitStream) { + FDK_DeleteBitBuffer(&hBitStream->hBitBuf); + FDKfree(hBitStream); } - /** - * \brief ReadBits Function (forward). This function returns a number of sequential - * bits from the input bitstream. + * \brief ReadBits Function (forward). This function returns a number of + * sequential bits from the input bitstream. * * \param hBitStream HANDLE_FDK_BITSTREAM handle - * \param numberOfBits The number of bits to be retrieved. + * \param numberOfBits The number of bits to be retrieved. ( (0),1 <= + * numberOfBits <= 32) * \return the requested bits, right aligned * \return */ -#define OPTIMIZE_FDKREADBITS FDK_INLINE UINT FDKreadBits(HANDLE_FDK_BITSTREAM hBitStream, - const UINT numberOfBits) -{ -#ifdef noOPTIMIZE_FDKREADBITS - INT missingBits = numberOfBits - hBitStream->BitsInCache; - if (missingBits > 0) - { - UINT bits = hBitStream->CacheWord << missingBits; - hBitStream->CacheWord = FDK_get32 (&hBitStream->hBitBuf) ; - hBitStream->BitsInCache = CACHE_BITS - missingBits; - return ( bits | (hBitStream->CacheWord >> hBitStream->BitsInCache)) & BitMask[numberOfBits]; + const UINT numberOfBits) { + UINT bits = 0; + INT missingBits = (INT)numberOfBits - (INT)hBitStream->BitsInCache; + + FDK_ASSERT(numberOfBits <= 32); + if (missingBits > 0) { + if (missingBits != 32) bits = hBitStream->CacheWord << missingBits; + hBitStream->CacheWord = FDK_get32(&hBitStream->hBitBuf); + hBitStream->BitsInCache += CACHE_BITS; } hBitStream->BitsInCache -= numberOfBits; - return ( hBitStream->CacheWord >> hBitStream->BitsInCache) & BitMask[numberOfBits]; - -#else - const UINT validMask = BitMask [numberOfBits] ; - - if (hBitStream->BitsInCache <= numberOfBits) - { - const INT freeBits = (CACHE_BITS-1) - hBitStream->BitsInCache ; - - hBitStream->CacheWord = (hBitStream->CacheWord << freeBits) | FDK_get (&hBitStream->hBitBuf,freeBits) ; - hBitStream->BitsInCache += freeBits ; - } - - hBitStream->BitsInCache -= numberOfBits ; - return (hBitStream->CacheWord >> hBitStream->BitsInCache) & validMask ; -#endif + return (bits | (hBitStream->CacheWord >> hBitStream->BitsInCache)) & + BitMask[numberOfBits]; } -FDK_INLINE UINT FDKreadBit(HANDLE_FDK_BITSTREAM hBitStream) -{ -#ifdef OPTIMIZE_FDKREADBITS - if (!hBitStream->BitsInCache) - { - hBitStream->CacheWord = FDK_get32 (&hBitStream->hBitBuf); - hBitStream->BitsInCache = CACHE_BITS; +FDK_INLINE UINT FDKreadBit(HANDLE_FDK_BITSTREAM hBitStream) { + if (!hBitStream->BitsInCache) { + hBitStream->CacheWord = FDK_get32(&hBitStream->hBitBuf); + hBitStream->BitsInCache = CACHE_BITS - 1; + return hBitStream->CacheWord >> 31; } hBitStream->BitsInCache--; return (hBitStream->CacheWord >> hBitStream->BitsInCache) & 1; -#else - return FDKreadBits(hBitStream,1); -#endif } /** - * \brief Read2Bits Function (forward). This function 2 sequential + * \brief Read2Bits Function (forward). This function reads 2 sequential * bits from the input bitstream. It is the optimized version - of FDKreadBits() for readign 2 bits. + of FDKreadBits() for reading 2 bits. * * \param hBitStream HANDLE_FDK_BITSTREAM handle * \return the requested bits, right aligned * \return */ -inline UINT FDKread2Bits(HANDLE_FDK_BITSTREAM hBitStream) -{ - UINT BitsInCache = hBitStream->BitsInCache; - if (BitsInCache < 2) /* Comparison changed from 'less-equal' to 'less' */ - { - const INT freeBits = (CACHE_BITS-1) - BitsInCache ; - - hBitStream->CacheWord = (hBitStream->CacheWord << freeBits) | FDK_get (&hBitStream->hBitBuf,freeBits) ; - BitsInCache += freeBits; +FDK_INLINE UINT FDKread2Bits(HANDLE_FDK_BITSTREAM hBitStream) { + /* + ** Version corresponds to optimized FDKreadBits implementation + ** calling FDK_get32, that keeps read pointer aligned. + */ + UINT bits = 0; + INT missingBits = 2 - (INT)hBitStream->BitsInCache; + if (missingBits > 0) { + bits = hBitStream->CacheWord << missingBits; + hBitStream->CacheWord = FDK_get32(&hBitStream->hBitBuf); + hBitStream->BitsInCache += CACHE_BITS; } - hBitStream->BitsInCache = BitsInCache - 2; - return (hBitStream->CacheWord >> hBitStream->BitsInCache) & 0x3; + + hBitStream->BitsInCache -= 2; + + return (bits | (hBitStream->CacheWord >> hBitStream->BitsInCache)) & 0x3; } /** - * \brief ReadBits Function (backward). This function returns a number of sequential bits - * from the input bitstream. + * \brief ReadBits Function (backward). This function returns a number of + * sequential bits from the input bitstream. * * \param hBitStream HANDLE_FDK_BITSTREAM handle * \param numberOfBits The number of bits to be retrieved. * \return the requested bits, right aligned */ FDK_INLINE UINT FDKreadBitsBwd(HANDLE_FDK_BITSTREAM hBitStream, - const UINT numberOfBits) -{ - const UINT validMask = BitMask [numberOfBits] ; + const UINT numberOfBits) { + const UINT validMask = BitMask[numberOfBits]; - if (hBitStream->BitsInCache <= numberOfBits) - { - const INT freeBits = (CACHE_BITS-1) - hBitStream->BitsInCache ; + if (hBitStream->BitsInCache <= numberOfBits) { + const INT freeBits = (CACHE_BITS - 1) - hBitStream->BitsInCache; - hBitStream->CacheWord = (hBitStream->CacheWord << freeBits) | FDK_getBwd (&hBitStream->hBitBuf,freeBits) ; - hBitStream->BitsInCache += freeBits ; + hBitStream->CacheWord = (hBitStream->CacheWord << freeBits) | + FDK_getBwd(&hBitStream->hBitBuf, freeBits); + hBitStream->BitsInCache += freeBits; } - hBitStream->BitsInCache -= numberOfBits ; + hBitStream->BitsInCache -= numberOfBits; - return (hBitStream->CacheWord >> hBitStream->BitsInCache) & validMask ; + return (hBitStream->CacheWord >> hBitStream->BitsInCache) & validMask; } +/** + * \brief read an integer value using a varying number of bits from the + * bitstream + * + * q.v. ISO/IEC FDIS 23003-3 Table 16 + * + * \param hBitStream HANDLE_FDK_BITSTREAM handle + * \param nBits1 number of bits to read for a small integer value or escape + * value + * \param nBits2 number of bits to read for a medium sized integer value or + * escape value + * \param nBits3 number of bits to read for a large integer value + * \return integer value read from bitstream + */ +FDK_INLINE UINT escapedValue(HANDLE_FDK_BITSTREAM hBitStream, int nBits1, + int nBits2, int nBits3) { + UINT value = FDKreadBits(hBitStream, nBits1); + + if (value == (UINT)(1 << nBits1) - 1) { + UINT valueAdd = FDKreadBits(hBitStream, nBits2); + value += valueAdd; + if (valueAdd == (UINT)(1 << nBits2) - 1) { + value += FDKreadBits(hBitStream, nBits3); + } + } + + return value; +} /** * \brief return a number of bits from the bitBuffer. - * You have to know what you do! Cache has to be synchronized before using this - * function. + * You have to know what you do! Cache has to be synchronized before + * using this function. * * \param hBitStream HANDLE_FDK_BITSTREAM handle * \param numBits The number of bits to be retrieved. * \return the requested bits, right aligned */ -FDK_INLINE UINT FDKgetBits (HANDLE_FDK_BITSTREAM hBitStream, UINT numBits) -{ - return FDK_get (&hBitStream->hBitBuf, numBits) ; +FDK_INLINE UINT FDKgetBits(HANDLE_FDK_BITSTREAM hBitStream, UINT numBits) { + return FDK_get(&hBitStream->hBitBuf, numBits); } - /** - * \brief WriteBits Function. This function writes numberOfBits of value into bitstream. + * \brief WriteBits Function. This function writes numberOfBits of value into + * bitstream. * * \param hBitStream HANDLE_FDK_BITSTREAM handle - * \param value Variable holds data to be written. - * \param numberOfBits The number of bits to be written. - * \return number of bits written + * \param value The data to be written + * \param numberOfBits The number of bits to be written + * \return Number of bits written */ FDK_INLINE UCHAR FDKwriteBits(HANDLE_FDK_BITSTREAM hBitStream, UINT value, - const UINT numberOfBits) -{ - const UINT validMask = BitMask [numberOfBits] ; - - if ((hBitStream->BitsInCache+numberOfBits) < CACHE_BITS) - { - hBitStream->BitsInCache += numberOfBits ; - hBitStream->CacheWord = (hBitStream->CacheWord << numberOfBits) | (value & validMask); + const UINT numberOfBits) { + const UINT validMask = BitMask[numberOfBits]; + + if (hBitStream == NULL) { + return numberOfBits; } - else - { - FDK_put(&hBitStream->hBitBuf, hBitStream->CacheWord, hBitStream->BitsInCache) ; - hBitStream->BitsInCache = numberOfBits ; - hBitStream->CacheWord = (value & validMask) ; + + if ((hBitStream->BitsInCache + numberOfBits) < CACHE_BITS) { + hBitStream->BitsInCache += numberOfBits; + hBitStream->CacheWord = + (hBitStream->CacheWord << numberOfBits) | (value & validMask); + } else { + /* Put always 32 bits into memory */ + /* - fill cache's LSBits with MSBits of value */ + /* - store 32 bits in memory using subroutine */ + /* - fill remaining bits into cache's LSBits */ + /* - upper bits in cache are don't care */ + + /* Compute number of bits to be filled into cache */ + int missing_bits = CACHE_BITS - hBitStream->BitsInCache; + int remaining_bits = numberOfBits - missing_bits; + value = value & validMask; + /* Avoid shift left by 32 positions */ + UINT CacheWord = + (missing_bits == 32) ? 0 : (hBitStream->CacheWord << missing_bits); + CacheWord |= (value >> (remaining_bits)); + FDK_put(&hBitStream->hBitBuf, CacheWord, 32); + + hBitStream->CacheWord = value; + hBitStream->BitsInCache = remaining_bits; } - return numberOfBits; + return numberOfBits; } - /** - * \brief WriteBits Function (backward). This function writes numberOfBits of value into bitstream. + * \brief WriteBits Function (backward). This function writes numberOfBits of + * value into bitstream. * * \param hBitStream HANDLE_FDK_BITSTREAM handle * \param value Variable holds data to be written. @@ -357,25 +385,63 @@ FDK_INLINE UCHAR FDKwriteBits(HANDLE_FDK_BITSTREAM hBitStream, UINT value, * \return number of bits written */ FDK_INLINE UCHAR FDKwriteBitsBwd(HANDLE_FDK_BITSTREAM hBitStream, UINT value, - const UINT numberOfBits) -{ - const UINT validMask = BitMask [numberOfBits] ; - - if ((hBitStream->BitsInCache+numberOfBits) <= CACHE_BITS) - { - hBitStream->BitsInCache += numberOfBits ; - hBitStream->CacheWord = (hBitStream->CacheWord << numberOfBits) | (value & validMask); - } - else - { - FDK_putBwd(&hBitStream->hBitBuf, hBitStream->CacheWord, hBitStream->BitsInCache) ; - hBitStream->BitsInCache = numberOfBits ; - hBitStream->CacheWord = (value & validMask) ; + const UINT numberOfBits) { + const UINT validMask = BitMask[numberOfBits]; + + if ((hBitStream->BitsInCache + numberOfBits) <= CACHE_BITS) { + hBitStream->BitsInCache += numberOfBits; + hBitStream->CacheWord = + (hBitStream->CacheWord << numberOfBits) | (value & validMask); + } else { + FDK_putBwd(&hBitStream->hBitBuf, hBitStream->CacheWord, + hBitStream->BitsInCache); + hBitStream->BitsInCache = numberOfBits; + hBitStream->CacheWord = (value & validMask); } - return numberOfBits; + return numberOfBits; } +/** + * \brief write an integer value using a varying number of bits from the + * bitstream + * + * q.v. ISO/IEC FDIS 23003-3 Table 16 + * + * \param hBitStream HANDLE_FDK_BITSTREAM handle + * \param value the data to be written + * \param nBits1 number of bits to write for a small integer value or escape + * value + * \param nBits2 number of bits to write for a medium sized integer value or + * escape value + * \param nBits3 number of bits to write for a large integer value + * \return number of bits written + */ +FDK_INLINE UCHAR FDKwriteEscapedValue(HANDLE_FDK_BITSTREAM hBitStream, + UINT value, UINT nBits1, UINT nBits2, + UINT nBits3) { + UCHAR nbits = 0; + UINT tmp = (1 << nBits1) - 1; + + if (value < tmp) { + nbits += FDKwriteBits(hBitStream, value, nBits1); + } else { + nbits += FDKwriteBits(hBitStream, tmp, nBits1); + value -= tmp; + tmp = (1 << nBits2) - 1; + + if (value < tmp) { + nbits += FDKwriteBits(hBitStream, value, nBits2); + } else { + nbits += FDKwriteBits(hBitStream, tmp, nBits2); + value -= tmp; + + nbits += FDKwriteBits(hBitStream, value, nBits3); + } + } + + return nbits; +} /** * \brief SyncCache Function. Clear cache after read forward. @@ -383,152 +449,158 @@ FDK_INLINE UCHAR FDKwriteBitsBwd(HANDLE_FDK_BITSTREAM hBitStream, UINT value, * \param hBitStream HANDLE_FDK_BITSTREAM handle * \return void */ -FDK_INLINE void FDKsyncCache (HANDLE_FDK_BITSTREAM hBitStream) -{ +FDK_INLINE void FDKsyncCache(HANDLE_FDK_BITSTREAM hBitStream) { if (hBitStream->ConfigCache == BS_READER) - FDK_pushBack (&hBitStream->hBitBuf,hBitStream->BitsInCache,hBitStream->ConfigCache) ; - else /* BS_WRITER */ - FDK_put(&hBitStream->hBitBuf, hBitStream->CacheWord, hBitStream->BitsInCache) ; - - hBitStream->BitsInCache = 0 ; - hBitStream->CacheWord = 0 ; + FDK_pushBack(&hBitStream->hBitBuf, hBitStream->BitsInCache, + hBitStream->ConfigCache); + else if (hBitStream->BitsInCache) /* BS_WRITER */ + FDK_put(&hBitStream->hBitBuf, hBitStream->CacheWord, + hBitStream->BitsInCache); + + hBitStream->BitsInCache = 0; + hBitStream->CacheWord = 0; } - /** * \brief SyncCache Function. Clear cache after read backwards. * * \param hBitStream HANDLE_FDK_BITSTREAM handle * \return void */ -FDK_INLINE void FDKsyncCacheBwd (HANDLE_FDK_BITSTREAM hBitStream) -{ +FDK_INLINE void FDKsyncCacheBwd(HANDLE_FDK_BITSTREAM hBitStream) { if (hBitStream->ConfigCache == BS_READER) { - FDK_pushForward (&hBitStream->hBitBuf,hBitStream->BitsInCache,hBitStream->ConfigCache) ; - } else { /* BS_WRITER */ - FDK_putBwd (&hBitStream->hBitBuf, hBitStream->CacheWord, hBitStream->BitsInCache) ; + FDK_pushForward(&hBitStream->hBitBuf, hBitStream->BitsInCache, + hBitStream->ConfigCache); + } else { /* BS_WRITER */ + FDK_putBwd(&hBitStream->hBitBuf, hBitStream->CacheWord, + hBitStream->BitsInCache); } - hBitStream->BitsInCache = 0 ; - hBitStream->CacheWord = 0 ; + hBitStream->BitsInCache = 0; + hBitStream->CacheWord = 0; } - /** * \brief Byte Alignment Function. - * This function performs the byte_alignment() syntactic function on the input stream, - * i.e. some bits will be discarded/padded so that the next bits to be read/written will - * be aligned on a byte boundary with respect to the bit position 0. + * This function performs the byte_alignment() syntactic function on the + * input stream, i.e. some bits will be discarded/padded so that the next bits + * to be read/written will be aligned on a byte boundary with respect to + * the bit position 0. * * \param hBitStream HANDLE_FDK_BITSTREAM handle * \return void */ -FDK_INLINE void FDKbyteAlign (HANDLE_FDK_BITSTREAM hBitStream) -{ - FDKsyncCache (hBitStream) ; - FDK_byteAlign (&hBitStream->hBitBuf, (UCHAR)hBitStream->ConfigCache) ; +FDK_INLINE void FDKbyteAlign(HANDLE_FDK_BITSTREAM hBitStream) { + FDKsyncCache(hBitStream); + FDK_byteAlign(&hBitStream->hBitBuf, (UCHAR)hBitStream->ConfigCache); } - /** * \brief Byte Alignment Function with anchor - * This function performs the byte_alignment() syntactic function on the input stream, - * i.e. some bits will be discarded so that the next bits to be read/written would be aligned - * on a byte boundary with respect to the given alignment anchor. + * This function performs the byte_alignment() syntactic function on the + * input stream, i.e. some bits will be discarded so that the next bits to be + * read/written would be aligned on a byte boundary with respect to the + * given alignment anchor. * * \param hBitStream HANDLE_FDK_BITSTREAM handle - * \param alignmentAnchor bit position to be considered as origin for byte alignment + * \param alignmentAnchor bit position to be considered as origin for byte + * alignment * \return void */ -FDK_INLINE void FDKbyteAlign (HANDLE_FDK_BITSTREAM hBitStream, UINT alignmentAnchor) -{ - FDKsyncCache (hBitStream) ; +FDK_INLINE void FDKbyteAlign(HANDLE_FDK_BITSTREAM hBitStream, + UINT alignmentAnchor) { + FDKsyncCache(hBitStream); if (hBitStream->ConfigCache == BS_READER) { - FDK_pushForward (&hBitStream->hBitBuf, - (8 - ((alignmentAnchor - FDK_getValidBits(&hBitStream->hBitBuf)) & 0x07)) & 0x07, - hBitStream->ConfigCache) ; - } - else { - FDK_put (&hBitStream->hBitBuf, - 0, - (8 - ((FDK_getValidBits(&hBitStream->hBitBuf)-alignmentAnchor) & 0x07)) & 0x07 ); + FDK_pushForward( + &hBitStream->hBitBuf, + (UINT)((INT)8 - (((INT)alignmentAnchor - + (INT)FDK_getValidBits(&hBitStream->hBitBuf)) & + 0x07)) & + 0x07, + hBitStream->ConfigCache); + } else { + FDK_put(&hBitStream->hBitBuf, 0, + (8 - ((FDK_getValidBits(&hBitStream->hBitBuf) - alignmentAnchor) & + 0x07)) & + 0x07); } } - /** * \brief Push Back(Cache) / For / BiDirectional Function. - * PushBackCache function ungets a number of bits erroneously read/written by the last Get() call. - * NB: The number of bits to be stuffed back into the stream may never exceed the - * number of bits returned by the immediately preceding Get() call. + * PushBackCache function ungets a number of bits erroneously + * read/written by the last Get() call. NB: The number of bits to be stuffed + * back into the stream may never exceed the number of bits returned by + * the immediately preceding Get() call. * - * PushBack function ungets a number of bits (combines cache and bitbuffer indices) - * PushFor function gets a number of bits (combines cache and bitbuffer indices) - * PushBiDirectional gets/ungets number of bits as defined in PusBack/For function - * NB: The sign of bits is not known, so the function checks direction and calls - * appropriate function. (positive sign pushFor, negative sign pushBack ) + * PushBack function ungets a number of bits (combines cache and bitbuffer + * indices) PushFor function gets a number of bits (combines cache and + * bitbuffer indices) PushBiDirectional gets/ungets number of bits as + * defined in PusBack/For function NB: The sign of bits is not known, so + * the function checks direction and calls appropriate function. (positive + * sign pushFor, negative sign pushBack ) * * \param hBitStream HANDLE_FDK_BITSTREAM handle * \param numberOfBits The number of bits to be pushed back/for. * \return void */ -FDK_INLINE void FDKpushBackCache (HANDLE_FDK_BITSTREAM hBitStream, const UINT numberOfBits) -{ - FDK_ASSERT ((hBitStream->BitsInCache+numberOfBits)<=CACHE_BITS); - hBitStream->BitsInCache += numberOfBits ; +FDK_INLINE void FDKpushBackCache(HANDLE_FDK_BITSTREAM hBitStream, + const UINT numberOfBits) { + FDK_ASSERT((hBitStream->BitsInCache + numberOfBits) <= CACHE_BITS); + hBitStream->BitsInCache += numberOfBits; } -FDK_INLINE void FDKpushBack (HANDLE_FDK_BITSTREAM hBitStream, const UINT numberOfBits) -{ - if ((hBitStream->BitsInCache+numberOfBits)<CACHE_BITS && (hBitStream->ConfigCache == BS_READER) ) { - hBitStream->BitsInCache += numberOfBits ; - FDKsyncCache(hBitStream) ; /* sync cache to avoid invalid cache */ - } - else { - FDKsyncCache(hBitStream) ; - FDK_pushBack(&hBitStream->hBitBuf,numberOfBits,hBitStream->ConfigCache); +FDK_INLINE void FDKpushBack(HANDLE_FDK_BITSTREAM hBitStream, + const UINT numberOfBits) { + if ((hBitStream->BitsInCache + numberOfBits) < CACHE_BITS && + (hBitStream->ConfigCache == BS_READER)) { + hBitStream->BitsInCache += numberOfBits; + FDKsyncCache(hBitStream); /* sync cache to avoid invalid cache */ + } else { + FDKsyncCache(hBitStream); + FDK_pushBack(&hBitStream->hBitBuf, numberOfBits, hBitStream->ConfigCache); } } -FDK_INLINE void FDKpushFor (HANDLE_FDK_BITSTREAM hBitStream, const UINT numberOfBits) -{ - if ( (hBitStream->BitsInCache>numberOfBits) && (hBitStream->ConfigCache == BS_READER) ) { +FDK_INLINE void FDKpushFor(HANDLE_FDK_BITSTREAM hBitStream, + const UINT numberOfBits) { + if ((hBitStream->BitsInCache > numberOfBits) && + (hBitStream->ConfigCache == BS_READER)) { hBitStream->BitsInCache -= numberOfBits; - } - else { - FDKsyncCache(hBitStream) ; - FDK_pushForward(&hBitStream->hBitBuf,numberOfBits,hBitStream->ConfigCache); + } else { + FDKsyncCache(hBitStream); + FDK_pushForward(&hBitStream->hBitBuf, numberOfBits, + hBitStream->ConfigCache); } } -FDK_INLINE void FDKpushBiDirectional (HANDLE_FDK_BITSTREAM hBitStream, const INT numberOfBits) -{ - if(numberOfBits>=0) FDKpushFor(hBitStream, numberOfBits) ; - else FDKpushBack(hBitStream, -numberOfBits) ; +FDK_INLINE void FDKpushBiDirectional(HANDLE_FDK_BITSTREAM hBitStream, + const INT numberOfBits) { + if (numberOfBits >= 0) + FDKpushFor(hBitStream, numberOfBits); + else + FDKpushBack(hBitStream, -numberOfBits); } - /** - * \brief GetValidBits Function. Clear cache and return valid Bits from Bitbuffer. + * \brief GetValidBits Function. Clear cache and return valid Bits from + * Bitbuffer. * \param hBitStream HANDLE_FDK_BITSTREAM handle * \return amount of valid bits that still can be read or were already written. * */ -FDK_INLINE UINT FDKgetValidBits (HANDLE_FDK_BITSTREAM hBitStream) -{ - FDKsyncCache(hBitStream) ; - return FDK_getValidBits(&hBitStream->hBitBuf) ; +FDK_INLINE UINT FDKgetValidBits(HANDLE_FDK_BITSTREAM hBitStream) { + FDKsyncCache(hBitStream); + return FDK_getValidBits(&hBitStream->hBitBuf); } - /** * \brief return amount of unused Bits from Bitbuffer. * \param hBitStream HANDLE_FDK_BITSTREAM handle * \return amount of free bits that still can be written into the bitstream */ -FDK_INLINE INT FDKgetFreeBits (HANDLE_FDK_BITSTREAM hBitStream) -{ - return FDK_getFreeBits (&hBitStream->hBitBuf) ; +FDK_INLINE INT FDKgetFreeBits(HANDLE_FDK_BITSTREAM hBitStream) { + return FDK_getFreeBits(&hBitStream->hBitBuf); } /** @@ -536,10 +608,9 @@ FDK_INLINE INT FDKgetFreeBits (HANDLE_FDK_BITSTREAM hBitStream) * \param hBitStream HANDLE_FDK_BITSTREAM handle * \return void */ -FDK_INLINE void FDKresetBitCnt (HANDLE_FDK_BITSTREAM hBitStream) -{ - FDKsyncCache (hBitStream) ; - FDK_setBitCnt (&hBitStream->hBitBuf, 0) ; +FDK_INLINE void FDKresetBitCnt(HANDLE_FDK_BITSTREAM hBitStream) { + FDKsyncCache(hBitStream); + FDK_setBitCnt(&hBitStream->hBitBuf, 0); } /** @@ -548,10 +619,9 @@ FDK_INLINE void FDKresetBitCnt (HANDLE_FDK_BITSTREAM hBitStream) * \param value new value to be assigned to the bit counter * \return void */ -FDK_INLINE void FDKsetBitCnt (HANDLE_FDK_BITSTREAM hBitStream, UINT value) -{ - FDKsyncCache (hBitStream) ; - FDK_setBitCnt (&hBitStream->hBitBuf, value) ; +FDK_INLINE void FDKsetBitCnt(HANDLE_FDK_BITSTREAM hBitStream, UINT value) { + FDKsyncCache(hBitStream); + FDK_setBitCnt(&hBitStream->hBitBuf, value); } /** @@ -559,60 +629,60 @@ FDK_INLINE void FDKsetBitCnt (HANDLE_FDK_BITSTREAM hBitStream, UINT value) * \param hBitStream HANDLE_FDK_BITSTREAM handle * \return current bit counter value */ -FDK_INLINE INT FDKgetBitCnt (HANDLE_FDK_BITSTREAM hBitStream) -{ - FDKsyncCache(hBitStream) ; - return FDK_getBitCnt(&hBitStream->hBitBuf) ; +FDK_INLINE INT FDKgetBitCnt(HANDLE_FDK_BITSTREAM hBitStream) { + FDKsyncCache(hBitStream); + return FDK_getBitCnt(&hBitStream->hBitBuf); } - /** * \brief Fill the BitBuffer with a number of input bytes from external source. - * The bytesValid variable returns the number of ramaining valid bytes in extern inputBuffer. + * The bytesValid variable returns the number of ramaining valid bytes in + * extern inputBuffer. * * \param hBitStream HANDLE_FDK_BITSTREAM handle * \param inputBuffer Pointer to input buffer with bitstream data. * \param bufferSize Total size of inputBuffer array. - * \param bytesValid Input: number of valid bytes in inputBuffer. Output: bytes still left unread in inputBuffer. + * \param bytesValid Input: number of valid bytes in inputBuffer. Output: bytes + * still left unread in inputBuffer. * \return void */ -FDK_INLINE void FDKfeedBuffer (HANDLE_FDK_BITSTREAM hBitStream, const UCHAR inputBuffer [], const UINT bufferSize, UINT *bytesValid) -{ - FDKsyncCache (hBitStream) ; - FDK_Feed(&hBitStream->hBitBuf, (UCHAR*)inputBuffer, bufferSize, bytesValid ) ; +FDK_INLINE void FDKfeedBuffer(HANDLE_FDK_BITSTREAM hBitStream, + const UCHAR inputBuffer[], const UINT bufferSize, + UINT *bytesValid) { + FDKsyncCache(hBitStream); + FDK_Feed(&hBitStream->hBitBuf, inputBuffer, bufferSize, bytesValid); } - /** - * \brief fill destination BitBuffer with a number of bytes from source BitBuffer. The - * bytesValid variable returns the number of ramaining valid bytes in source BitBuffer. + * \brief fill destination BitBuffer with a number of bytes from source + * BitBuffer. The bytesValid variable returns the number of ramaining valid + * bytes in source BitBuffer. * * \param hBSDst HANDLE_FDK_BITSTREAM handle to write data into * \param hBSSrc HANDLE_FDK_BITSTREAM handle to read data from - * \param bytesValid Input: number of valid bytes in inputBuffer. Output: bytes still left unread in inputBuffer. + * \param bytesValid Input: number of valid bytes in inputBuffer. Output: + * bytes still left unread in inputBuffer. * \return void */ -FDK_INLINE void FDKcopyBuffer (HANDLE_FDK_BITSTREAM hBSDst, HANDLE_FDK_BITSTREAM hBSSrc, UINT *bytesValid) -{ - FDKsyncCache (hBSSrc) ; - FDK_Copy (&hBSDst->hBitBuf, &hBSSrc->hBitBuf, bytesValid) ; +FDK_INLINE void FDKcopyBuffer(HANDLE_FDK_BITSTREAM hBSDst, + HANDLE_FDK_BITSTREAM hBSSrc, UINT *bytesValid) { + FDKsyncCache(hBSSrc); + FDK_Copy(&hBSDst->hBitBuf, &hBSSrc->hBitBuf, bytesValid); } - /** - * \brief fill the outputBuffer with all valid bytes hold in BitBuffer. The WriteBytes - * variable returns the number of written Bytes. + * \brief fill the outputBuffer with all valid bytes hold in BitBuffer. The + * WriteBytes variable returns the number of written Bytes. * * \param hBitStream HANDLE_FDK_BITSTREAM handle * \param outputBuffer Pointer to output buffer. * \param writeBytes Number of bytes write to output buffer. * \return void */ -FDK_INLINE void FDKfetchBuffer(HANDLE_FDK_BITSTREAM hBitStream, UCHAR *outputBuffer, UINT *writeBytes) -{ - FDKsyncCache (hBitStream) ; +FDK_INLINE void FDKfetchBuffer(HANDLE_FDK_BITSTREAM hBitStream, + UCHAR *outputBuffer, UINT *writeBytes) { + FDKsyncCache(hBitStream); FDK_Fetch(&hBitStream->hBitBuf, outputBuffer, writeBytes); } - #endif |