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authorFraunhofer IIS FDK <audio-fdk@iis.fraunhofer.de>2018-02-26 20:17:00 +0100
committerJean-Michel Trivi <jmtrivi@google.com>2018-04-19 11:21:15 -0700
commit6cfabd35363c3ef5e3b209b867169a500b3ccc3c (patch)
tree01c0a19f2735e8b5d2407555fe992d4230d089eb /libFDK/src/FDK_crc.cpp
parent6288a1e34c4dede4c2806beb1736ece6580558c7 (diff)
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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/src/FDK_crc.cpp')
-rw-r--r--libFDK/src/FDK_crc.cpp550
1 files changed, 285 insertions, 265 deletions
diff --git a/libFDK/src/FDK_crc.cpp b/libFDK/src/FDK_crc.cpp
index 17d47ad..39f87d3 100644
--- a/libFDK/src/FDK_crc.cpp
+++ b/libFDK/src/FDK_crc.cpp
@@ -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
@@ -79,149 +90,164 @@ Am Wolfsmantel 33
www.iis.fraunhofer.de/amm
amm-info@iis.fraunhofer.de
------------------------------------------------------------------------------------------------------------ */
-
-/******************************** MPEG Audio Encoder **************************
+----------------------------------------------------------------------------- */
- Initial author:
- contents/description: CRC calculation
+/******************* Library for basic calculation routines ********************
-******************************************************************************/
+ Author(s):
-#include "FDK_crc.h"
+ Description: CRC calculation
+*******************************************************************************/
+#include "FDK_crc.h"
/*---------------- constants -----------------------*/
/**
- * \brief This table defines precalculated lookup tables for crc polynom x^16 + x^15 + x^2 + x^0.
+ * \brief This table defines precalculated lookup tables for crc polynom x^16
+ * + x^15 + x^2 + x^0.
*/
-static const USHORT crcLookup_16_15_2_0[256] =
-{
- 0x0000, 0x8005, 0x800f, 0x000a, 0x801b, 0x001e, 0x0014, 0x8011,
- 0x8033, 0x0036, 0x003c, 0x8039, 0x0028, 0x802d, 0x8027, 0x0022,
- 0x8063, 0x0066, 0x006c, 0x8069, 0x0078, 0x807d, 0x8077, 0x0072,
- 0x0050, 0x8055, 0x805f, 0x005a, 0x804b, 0x004e, 0x0044, 0x8041,
- 0x80c3, 0x00c6, 0x00cc, 0x80c9, 0x00d8, 0x80dd, 0x80d7, 0x00d2,
- 0x00f0, 0x80f5, 0x80ff, 0x00fa, 0x80eb, 0x00ee, 0x00e4, 0x80e1,
- 0x00a0, 0x80a5, 0x80af, 0x00aa, 0x80bb, 0x00be, 0x00b4, 0x80b1,
- 0x8093, 0x0096, 0x009c, 0x8099, 0x0088, 0x808d, 0x8087, 0x0082,
- 0x8183, 0x0186, 0x018c, 0x8189, 0x0198, 0x819d, 0x8197, 0x0192,
- 0x01b0, 0x81b5, 0x81bf, 0x01ba, 0x81ab, 0x01ae, 0x01a4, 0x81a1,
- 0x01e0, 0x81e5, 0x81ef, 0x01ea, 0x81fb, 0x01fe, 0x01f4, 0x81f1,
- 0x81d3, 0x01d6, 0x01dc, 0x81d9, 0x01c8, 0x81cd, 0x81c7, 0x01c2,
- 0x0140, 0x8145, 0x814f, 0x014a, 0x815b, 0x015e, 0x0154, 0x8151,
- 0x8173, 0x0176, 0x017c, 0x8179, 0x0168, 0x816d, 0x8167, 0x0162,
- 0x8123, 0x0126, 0x012c, 0x8129, 0x0138, 0x813d, 0x8137, 0x0132,
- 0x0110, 0x8115, 0x811f, 0x011a, 0x810b, 0x010e, 0x0104, 0x8101,
- 0x8303, 0x0306, 0x030c, 0x8309, 0x0318, 0x831d, 0x8317, 0x0312,
- 0x0330, 0x8335, 0x833f, 0x033a, 0x832b, 0x032e, 0x0324, 0x8321,
- 0x0360, 0x8365, 0x836f, 0x036a, 0x837b, 0x037e, 0x0374, 0x8371,
- 0x8353, 0x0356, 0x035c, 0x8359, 0x0348, 0x834d, 0x8347, 0x0342,
- 0x03c0, 0x83c5, 0x83cf, 0x03ca, 0x83db, 0x03de, 0x03d4, 0x83d1,
- 0x83f3, 0x03f6, 0x03fc, 0x83f9, 0x03e8, 0x83ed, 0x83e7, 0x03e2,
- 0x83a3, 0x03a6, 0x03ac, 0x83a9, 0x03b8, 0x83bd, 0x83b7, 0x03b2,
- 0x0390, 0x8395, 0x839f, 0x039a, 0x838b, 0x038e, 0x0384, 0x8381,
- 0x0280, 0x8285, 0x828f, 0x028a, 0x829b, 0x029e, 0x0294, 0x8291,
- 0x82b3, 0x02b6, 0x02bc, 0x82b9, 0x02a8, 0x82ad, 0x82a7, 0x02a2,
- 0x82e3, 0x02e6, 0x02ec, 0x82e9, 0x02f8, 0x82fd, 0x82f7, 0x02f2,
- 0x02d0, 0x82d5, 0x82df, 0x02da, 0x82cb, 0x02ce, 0x02c4, 0x82c1,
- 0x8243, 0x0246, 0x024c, 0x8249, 0x0258, 0x825d, 0x8257, 0x0252,
- 0x0270, 0x8275, 0x827f, 0x027a, 0x826b, 0x026e, 0x0264, 0x8261,
- 0x0220, 0x8225, 0x822f, 0x022a, 0x823b, 0x023e, 0x0234, 0x8231,
- 0x8213, 0x0216, 0x021c, 0x8219, 0x0208, 0x820d, 0x8207, 0x0202
-};
+static const USHORT crcLookup_16_15_2_0[256] = {
+ 0x0000, 0x8005, 0x800f, 0x000a, 0x801b, 0x001e, 0x0014, 0x8011, 0x8033,
+ 0x0036, 0x003c, 0x8039, 0x0028, 0x802d, 0x8027, 0x0022, 0x8063, 0x0066,
+ 0x006c, 0x8069, 0x0078, 0x807d, 0x8077, 0x0072, 0x0050, 0x8055, 0x805f,
+ 0x005a, 0x804b, 0x004e, 0x0044, 0x8041, 0x80c3, 0x00c6, 0x00cc, 0x80c9,
+ 0x00d8, 0x80dd, 0x80d7, 0x00d2, 0x00f0, 0x80f5, 0x80ff, 0x00fa, 0x80eb,
+ 0x00ee, 0x00e4, 0x80e1, 0x00a0, 0x80a5, 0x80af, 0x00aa, 0x80bb, 0x00be,
+ 0x00b4, 0x80b1, 0x8093, 0x0096, 0x009c, 0x8099, 0x0088, 0x808d, 0x8087,
+ 0x0082, 0x8183, 0x0186, 0x018c, 0x8189, 0x0198, 0x819d, 0x8197, 0x0192,
+ 0x01b0, 0x81b5, 0x81bf, 0x01ba, 0x81ab, 0x01ae, 0x01a4, 0x81a1, 0x01e0,
+ 0x81e5, 0x81ef, 0x01ea, 0x81fb, 0x01fe, 0x01f4, 0x81f1, 0x81d3, 0x01d6,
+ 0x01dc, 0x81d9, 0x01c8, 0x81cd, 0x81c7, 0x01c2, 0x0140, 0x8145, 0x814f,
+ 0x014a, 0x815b, 0x015e, 0x0154, 0x8151, 0x8173, 0x0176, 0x017c, 0x8179,
+ 0x0168, 0x816d, 0x8167, 0x0162, 0x8123, 0x0126, 0x012c, 0x8129, 0x0138,
+ 0x813d, 0x8137, 0x0132, 0x0110, 0x8115, 0x811f, 0x011a, 0x810b, 0x010e,
+ 0x0104, 0x8101, 0x8303, 0x0306, 0x030c, 0x8309, 0x0318, 0x831d, 0x8317,
+ 0x0312, 0x0330, 0x8335, 0x833f, 0x033a, 0x832b, 0x032e, 0x0324, 0x8321,
+ 0x0360, 0x8365, 0x836f, 0x036a, 0x837b, 0x037e, 0x0374, 0x8371, 0x8353,
+ 0x0356, 0x035c, 0x8359, 0x0348, 0x834d, 0x8347, 0x0342, 0x03c0, 0x83c5,
+ 0x83cf, 0x03ca, 0x83db, 0x03de, 0x03d4, 0x83d1, 0x83f3, 0x03f6, 0x03fc,
+ 0x83f9, 0x03e8, 0x83ed, 0x83e7, 0x03e2, 0x83a3, 0x03a6, 0x03ac, 0x83a9,
+ 0x03b8, 0x83bd, 0x83b7, 0x03b2, 0x0390, 0x8395, 0x839f, 0x039a, 0x838b,
+ 0x038e, 0x0384, 0x8381, 0x0280, 0x8285, 0x828f, 0x028a, 0x829b, 0x029e,
+ 0x0294, 0x8291, 0x82b3, 0x02b6, 0x02bc, 0x82b9, 0x02a8, 0x82ad, 0x82a7,
+ 0x02a2, 0x82e3, 0x02e6, 0x02ec, 0x82e9, 0x02f8, 0x82fd, 0x82f7, 0x02f2,
+ 0x02d0, 0x82d5, 0x82df, 0x02da, 0x82cb, 0x02ce, 0x02c4, 0x82c1, 0x8243,
+ 0x0246, 0x024c, 0x8249, 0x0258, 0x825d, 0x8257, 0x0252, 0x0270, 0x8275,
+ 0x827f, 0x027a, 0x826b, 0x026e, 0x0264, 0x8261, 0x0220, 0x8225, 0x822f,
+ 0x022a, 0x823b, 0x023e, 0x0234, 0x8231, 0x8213, 0x0216, 0x021c, 0x8219,
+ 0x0208, 0x820d, 0x8207, 0x0202};
/**
- * \brief This table defines precalculated lookup tables for crc polynom x^16 + x^12 + x^5 + x^0.
+ * \brief This table defines precalculated lookup tables for crc polynom x^16
+ * + x^12 + x^5 + x^0.
*/
-static const USHORT crcLookup_16_12_5_0[256] =
-{
- 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
- 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
- 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
- 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
- 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
- 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
- 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
- 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
- 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
- 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
- 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
- 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
- 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
- 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
- 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
- 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
- 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
- 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
- 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
- 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
- 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
- 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
- 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
- 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
- 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
- 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
- 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
- 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
- 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
- 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
- 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
- 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0
-};
+static const USHORT crcLookup_16_12_5_0[256] = {
+ 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7, 0x8108,
+ 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef, 0x1231, 0x0210,
+ 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6, 0x9339, 0x8318, 0xb37b,
+ 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de, 0x2462, 0x3443, 0x0420, 0x1401,
+ 0x64e6, 0x74c7, 0x44a4, 0x5485, 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee,
+ 0xf5cf, 0xc5ac, 0xd58d, 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6,
+ 0x5695, 0x46b4, 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d,
+ 0xc7bc, 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
+ 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b, 0x5af5,
+ 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12, 0xdbfd, 0xcbdc,
+ 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a, 0x6ca6, 0x7c87, 0x4ce4,
+ 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41, 0xedae, 0xfd8f, 0xcdec, 0xddcd,
+ 0xad2a, 0xbd0b, 0x8d68, 0x9d49, 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13,
+ 0x2e32, 0x1e51, 0x0e70, 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a,
+ 0x9f59, 0x8f78, 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e,
+ 0xe16f, 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
+ 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e, 0x02b1,
+ 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256, 0xb5ea, 0xa5cb,
+ 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d, 0x34e2, 0x24c3, 0x14a0,
+ 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xa7db, 0xb7fa, 0x8799, 0x97b8,
+ 0xe75f, 0xf77e, 0xc71d, 0xd73c, 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657,
+ 0x7676, 0x4615, 0x5634, 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9,
+ 0xb98a, 0xa9ab, 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882,
+ 0x28a3, 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
+ 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92, 0xfd2e,
+ 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9, 0x7c26, 0x6c07,
+ 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1, 0xef1f, 0xff3e, 0xcf5d,
+ 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8, 0x6e17, 0x7e36, 0x4e55, 0x5e74,
+ 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0};
+/**
+ * \brief This table defines precalculated lookup tables for crc polynom x^16
+ * + x^15 + x^5 + x^0.
+ */
-/*--------------- function declarations --------------------*/
+static const USHORT crcLookup_16_15_5_0[256] = {
+ 0x0000, 0x8021, 0x8063, 0x0042, 0x80e7, 0x00c6, 0x0084, 0x80a5, 0x81ef,
+ 0x01ce, 0x018c, 0x81ad, 0x0108, 0x8129, 0x816b, 0x014a, 0x83ff, 0x03de,
+ 0x039c, 0x83bd, 0x0318, 0x8339, 0x837b, 0x035a, 0x0210, 0x8231, 0x8273,
+ 0x0252, 0x82f7, 0x02d6, 0x0294, 0x82b5, 0x87df, 0x07fe, 0x07bc, 0x879d,
+ 0x0738, 0x8719, 0x875b, 0x077a, 0x0630, 0x8611, 0x8653, 0x0672, 0x86d7,
+ 0x06f6, 0x06b4, 0x8695, 0x0420, 0x8401, 0x8443, 0x0462, 0x84c7, 0x04e6,
+ 0x04a4, 0x8485, 0x85cf, 0x05ee, 0x05ac, 0x858d, 0x0528, 0x8509, 0x854b,
+ 0x056a, 0x8f9f, 0x0fbe, 0x0ffc, 0x8fdd, 0x0f78, 0x8f59, 0x8f1b, 0x0f3a,
+ 0x0e70, 0x8e51, 0x8e13, 0x0e32, 0x8e97, 0x0eb6, 0x0ef4, 0x8ed5, 0x0c60,
+ 0x8c41, 0x8c03, 0x0c22, 0x8c87, 0x0ca6, 0x0ce4, 0x8cc5, 0x8d8f, 0x0dae,
+ 0x0dec, 0x8dcd, 0x0d68, 0x8d49, 0x8d0b, 0x0d2a, 0x0840, 0x8861, 0x8823,
+ 0x0802, 0x88a7, 0x0886, 0x08c4, 0x88e5, 0x89af, 0x098e, 0x09cc, 0x89ed,
+ 0x0948, 0x8969, 0x892b, 0x090a, 0x8bbf, 0x0b9e, 0x0bdc, 0x8bfd, 0x0b58,
+ 0x8b79, 0x8b3b, 0x0b1a, 0x0a50, 0x8a71, 0x8a33, 0x0a12, 0x8ab7, 0x0a96,
+ 0x0ad4, 0x8af5, 0x9f1f, 0x1f3e, 0x1f7c, 0x9f5d, 0x1ff8, 0x9fd9, 0x9f9b,
+ 0x1fba, 0x1ef0, 0x9ed1, 0x9e93, 0x1eb2, 0x9e17, 0x1e36, 0x1e74, 0x9e55,
+ 0x1ce0, 0x9cc1, 0x9c83, 0x1ca2, 0x9c07, 0x1c26, 0x1c64, 0x9c45, 0x9d0f,
+ 0x1d2e, 0x1d6c, 0x9d4d, 0x1de8, 0x9dc9, 0x9d8b, 0x1daa, 0x18c0, 0x98e1,
+ 0x98a3, 0x1882, 0x9827, 0x1806, 0x1844, 0x9865, 0x992f, 0x190e, 0x194c,
+ 0x996d, 0x19c8, 0x99e9, 0x99ab, 0x198a, 0x9b3f, 0x1b1e, 0x1b5c, 0x9b7d,
+ 0x1bd8, 0x9bf9, 0x9bbb, 0x1b9a, 0x1ad0, 0x9af1, 0x9ab3, 0x1a92, 0x9a37,
+ 0x1a16, 0x1a54, 0x9a75, 0x1080, 0x90a1, 0x90e3, 0x10c2, 0x9067, 0x1046,
+ 0x1004, 0x9025, 0x916f, 0x114e, 0x110c, 0x912d, 0x1188, 0x91a9, 0x91eb,
+ 0x11ca, 0x937f, 0x135e, 0x131c, 0x933d, 0x1398, 0x93b9, 0x93fb, 0x13da,
+ 0x1290, 0x92b1, 0x92f3, 0x12d2, 0x9277, 0x1256, 0x1214, 0x9235, 0x975f,
+ 0x177e, 0x173c, 0x971d, 0x17b8, 0x9799, 0x97db, 0x17fa, 0x16b0, 0x9691,
+ 0x96d3, 0x16f2, 0x9657, 0x1676, 0x1634, 0x9615, 0x14a0, 0x9481, 0x94c3,
+ 0x14e2, 0x9447, 0x1466, 0x1424, 0x9405, 0x954f, 0x156e, 0x152c, 0x950d,
+ 0x15a8, 0x9589, 0x95cb, 0x15ea,
+};
-static inline INT calcCrc_Bits(
- USHORT * const pCrc,
- USHORT crcMask,
- USHORT crcPoly,
- HANDLE_FDK_BITSTREAM hBs,
- INT nBits
- );
+/*--------------- function declarations --------------------*/
-static inline INT calcCrc_Bytes(
- USHORT * const pCrc,
- const USHORT * pCrcLookup,
- HANDLE_FDK_BITSTREAM hBs,
- INT nBytes
- );
+static inline INT calcCrc_Bits(USHORT *const pCrc, USHORT crcMask,
+ USHORT crcPoly, HANDLE_FDK_BITSTREAM hBs,
+ INT nBits);
-static void crcCalc(
- HANDLE_FDK_CRCINFO hCrcInfo,
- HANDLE_FDK_BITSTREAM hBs,
- const INT reg
- );
+static inline INT calcCrc_Bytes(USHORT *const pCrc, const USHORT *pCrcLookup,
+ HANDLE_FDK_BITSTREAM hBs, INT nBytes);
+static void crcCalc(HANDLE_FDK_CRCINFO hCrcInfo, HANDLE_FDK_BITSTREAM hBs,
+ const INT reg);
/*------------- function definitions ----------------*/
-void FDKcrcInit(
- HANDLE_FDK_CRCINFO hCrcInfo,
- const UINT crcPoly,
- const UINT crcStartValue,
- const UINT crcLen
- )
-{
+void FDKcrcInit(HANDLE_FDK_CRCINFO hCrcInfo, const UINT crcPoly,
+ const UINT crcStartValue, const UINT crcLen) {
/* crc polynom example:
+ x^16 + x^15 + x^5 + x^0 (1) 1000 0000 0010 0001 -> 0x8021
x^16 + x^15 + x^2 + x^0 (1) 1000 0000 0000 0101 -> 0x8005
x^16 + x^12 + x^5 + x^0 (1) 0001 0000 0010 0001 -> 0x1021
x^8 + x^4 + x^3 + x^2 + x^0 (1) 0001 1101 -> 0x001d */
- hCrcInfo->crcLen = crcLen;
- hCrcInfo->crcPoly = crcPoly;
+ hCrcInfo->crcLen = crcLen;
+ hCrcInfo->crcPoly = crcPoly;
hCrcInfo->startValue = crcStartValue;
- hCrcInfo->crcMask = (crcLen) ? (1<<(crcLen-1)) : 0;
+ hCrcInfo->crcMask = (crcLen) ? (1 << (crcLen - 1)) : 0;
FDKcrcReset(hCrcInfo);
- hCrcInfo->pCrcLookup = 0;
+ hCrcInfo->pCrcLookup =
+ 0; /* Preset 0 for "crcLen" != 16 or unknown 16-bit polynoms "crcPoly" */
- if (hCrcInfo->crcLen==16) {
- switch ( crcPoly ) {
+ if (hCrcInfo->crcLen == 16) {
+ switch (crcPoly) {
+ case 0x8021:
+ hCrcInfo->pCrcLookup = crcLookup_16_15_5_0;
+ break;
case 0x8005:
hCrcInfo->pCrcLookup = crcLookup_16_15_2_0;
break;
@@ -231,77 +257,65 @@ void FDKcrcInit(
case 0x001d:
default:
/* no lookup table */
- hCrcInfo->pCrcLookup = 0;
+ break;
}
}
-
-
}
-void FDKcrcReset(HANDLE_FDK_CRCINFO hCrcInfo)
-{
+void FDKcrcReset(HANDLE_FDK_CRCINFO hCrcInfo) {
int i;
hCrcInfo->crcValue = hCrcInfo->startValue;
- for(i=0;i<MAX_CRC_REGS;i++) {
+ for (i = 0; i < MAX_CRC_REGS; i++) {
hCrcInfo->crcRegData[i].isActive = 0;
}
hCrcInfo->regStart = 0;
- hCrcInfo->regStop = 0;
+ hCrcInfo->regStop = 0;
}
-INT FDKcrcStartReg(
- HANDLE_FDK_CRCINFO hCrcInfo,
- const HANDLE_FDK_BITSTREAM hBs,
- const INT mBits
- )
-{
+INT FDKcrcStartReg(HANDLE_FDK_CRCINFO hCrcInfo, const HANDLE_FDK_BITSTREAM hBs,
+ const INT mBits) {
int reg = hCrcInfo->regStart;
- FDK_ASSERT(hCrcInfo->crcRegData[reg].isActive==0);
- hCrcInfo->crcRegData[reg].isActive = 1;
- hCrcInfo->crcRegData[reg].maxBits = mBits;
- hCrcInfo->crcRegData[reg].validBits = FDKgetValidBits(hBs) ;
+ FDK_ASSERT(hCrcInfo->crcRegData[reg].isActive == 0);
+ hCrcInfo->crcRegData[reg].isActive = 1;
+ hCrcInfo->crcRegData[reg].maxBits = mBits;
+ hCrcInfo->crcRegData[reg].validBits = FDKgetValidBits(hBs);
hCrcInfo->crcRegData[reg].bitBufCntBits = 0;
- hCrcInfo->regStart = (hCrcInfo->regStart+1)%MAX_CRC_REGS;
+ hCrcInfo->regStart = (hCrcInfo->regStart + 1) % MAX_CRC_REGS;
return (reg);
}
-INT FDKcrcEndReg(
- HANDLE_FDK_CRCINFO hCrcInfo,
- const HANDLE_FDK_BITSTREAM hBs,
- const INT reg
- )
-{
- FDK_ASSERT((reg==(INT)hCrcInfo->regStop)&&(hCrcInfo->crcRegData[reg].isActive==1));
-
- if (hBs->ConfigCache==BS_WRITER) {
- hCrcInfo->crcRegData[reg].bitBufCntBits = FDKgetValidBits(hBs) - hCrcInfo->crcRegData[reg].validBits;
- }
- else {
- hCrcInfo->crcRegData[reg].bitBufCntBits = hCrcInfo->crcRegData[reg].validBits - FDKgetValidBits(hBs);
+INT FDKcrcEndReg(HANDLE_FDK_CRCINFO hCrcInfo, const HANDLE_FDK_BITSTREAM hBs,
+ const INT reg) {
+ FDK_ASSERT((reg == (INT)hCrcInfo->regStop) &&
+ (hCrcInfo->crcRegData[reg].isActive == 1));
+
+ if (hBs->ConfigCache == BS_WRITER) {
+ hCrcInfo->crcRegData[reg].bitBufCntBits =
+ FDKgetValidBits(hBs) - hCrcInfo->crcRegData[reg].validBits;
+ } else {
+ hCrcInfo->crcRegData[reg].bitBufCntBits =
+ hCrcInfo->crcRegData[reg].validBits - FDKgetValidBits(hBs);
}
if (hCrcInfo->crcRegData[reg].maxBits == 0) {
hCrcInfo->crcRegData[reg].maxBits = hCrcInfo->crcRegData[reg].bitBufCntBits;
}
- crcCalc( hCrcInfo, hBs, reg);
+ crcCalc(hCrcInfo, hBs, reg);
hCrcInfo->crcRegData[reg].isActive = 0;
- hCrcInfo->regStop = (hCrcInfo->regStop+1)%MAX_CRC_REGS;
+ hCrcInfo->regStop = (hCrcInfo->regStop + 1) % MAX_CRC_REGS;
return 0;
}
-USHORT FDKcrcGetCRC(
- const HANDLE_FDK_CRCINFO hCrcInfo
- )
-{
- return ( hCrcInfo->crcValue & (((hCrcInfo->crcMask-1)<<1)+1) );
+USHORT FDKcrcGetCRC(const HANDLE_FDK_CRCINFO hCrcInfo) {
+ return (hCrcInfo->crcValue & (((hCrcInfo->crcMask - 1) << 1) + 1));
}
/**
@@ -309,7 +323,8 @@ USHORT FDKcrcGetCRC(
*
* Calculate crc starting at current bitstream postion over nBits.
*
- * \param pCrc Pointer to an outlying allocated crc info structure.
+ * \param pCrc Pointer to an outlying allocated crc info
+ * structure.
* \param crcMask CrcMask in use.
* \param crcPoly Crc polynom in use.
* \param hBs Handle to current bit buffer structure.
@@ -317,31 +332,23 @@ USHORT FDKcrcGetCRC(
*
* \return Number of processed bits.
*/
-static inline INT calcCrc_Bits(
- USHORT * const pCrc,
- USHORT crcMask,
- USHORT crcPoly,
- HANDLE_FDK_BITSTREAM hBs,
- INT nBits
- )
-{
+static inline INT calcCrc_Bits(USHORT *const pCrc, USHORT crcMask,
+ USHORT crcPoly, HANDLE_FDK_BITSTREAM hBs,
+ INT nBits) {
int i;
USHORT crc = *pCrc; /* get crc value */
- if (hBs!=NULL) {
+ if (hBs != NULL) {
for (i = 0; (i < nBits); i++) {
- USHORT tmp = FDKreadBits(hBs,1); // process single bit
- tmp ^= ( (crc & crcMask) ? 1 : 0 );
- tmp *= crcPoly;
+ USHORT tmp = FDKreadBit(hBs); // process single bit
+ tmp ^= ((crc & crcMask) ? 1 : 0);
+ if (tmp != 0) tmp = crcPoly;
crc <<= 1;
crc ^= tmp;
}
- }
- else {
+ } else {
for (i = 0; (i < nBits); i++) {
- USHORT tmp = 0; // process single bit
- tmp ^= ( (crc & crcMask) ? 1 : 0 );
- tmp *= crcPoly;
+ USHORT tmp = (crc & crcMask) ? crcPoly : 0; // process single bit
crc <<= 1;
crc ^= tmp;
}
@@ -356,104 +363,117 @@ static inline INT calcCrc_Bits(
*
* Calculate crc starting at current bitstream postion over nBytes.
*
- * \param pCrc Pointer to an outlying allocated crc info structure.
- * \param pCrcLookup Pointer to lookup table used for fast crc calculation.
+ * \param pCrc Pointer to an outlying allocated crc info
+ * structure.
+ * \param pCrcLookup Pointer to lookup table used for fast crc
+ * calculation.
* \param hBs Handle to current bit buffer structure.
* \param nBits Number of processing bytes.
*
* \return Number of processed bits.
*/
-static inline INT calcCrc_Bytes(
- USHORT * const pCrc,
- const USHORT * pCrcLookup,
- HANDLE_FDK_BITSTREAM hBs,
- INT nBytes
- )
-{
+
+static inline INT calcCrc_Bytes(USHORT *const pCrc, const USHORT *pCrcLookup,
+ HANDLE_FDK_BITSTREAM hBs, INT nBytes) {
int i;
USHORT crc = *pCrc; /* get crc value */
- if (hBs!=NULL) {
- for (i=0; i<nBytes; i++) {
- crc = (crc<<8)^pCrcLookup[((crc>>8)^((UCHAR)FDKreadBits(hBs,8)))&0xFF];
+ if (hBs != NULL) {
+ ULONG data;
+ INT bits;
+ for (i = 0; i < (nBytes >> 2); i++) {
+ data = (ULONG)FDKreadBits(hBs, 32);
+ crc =
+ (crc << 8) ^ pCrcLookup[((crc >> 8) ^ ((USHORT)(data >> 24))) & 0xFF];
+ crc =
+ (crc << 8) ^ pCrcLookup[((crc >> 8) ^ ((USHORT)(data >> 16))) & 0xFF];
+ crc =
+ (crc << 8) ^ pCrcLookup[((crc >> 8) ^ ((USHORT)(data >> 8))) & 0xFF];
+ crc =
+ (crc << 8) ^ pCrcLookup[((crc >> 8) ^ ((USHORT)(data >> 0))) & 0xFF];
}
- }
- else {
- for (i=0; i<nBytes; i++) {
- crc = (crc<<8)^pCrcLookup[((crc>>8)^((UCHAR)0))&0xFF];
+ bits = (nBytes & 3) << 3;
+ if (bits > 0) {
+ data = (ULONG)FDKreadBits(hBs, bits);
+ for (bits -= 8; bits >= 0; bits -= 8)
+ crc = (crc << 8) ^
+ pCrcLookup[((crc >> 8) ^ (USHORT)(data >> bits)) & 0xFF];
+ }
+ } else {
+ for (i = 0; i < nBytes; i++) {
+ crc = (crc << 8) ^ pCrcLookup[(crc >> 8) & 0xFF];
}
}
*pCrc = crc; /* update crc value */
- return (i);
+ return (nBytes);
}
/**
* \brief Calculate crc.
*
- * Calculate crc. Lenght depends on mBits parameter in FDKcrcStartReg() configuration.
+ * Calculate crc. Lenght depends on mBits parameter in FDKcrcStartReg()
+ * configuration.
*
- * \param hCrcInfo Pointer to an outlying allocated crc info structure.
+ * \param hCrcInfo Pointer to an outlying allocated crc info
+ * structure.
* \param hBs Pointer to current bit buffer structure.
* \param reg Crc region ID.
*
* \return Number of processed bits.
*/
-static void crcCalc(
- HANDLE_FDK_CRCINFO hCrcInfo,
- HANDLE_FDK_BITSTREAM hBs,
- const INT reg
- )
-{
+static void crcCalc(HANDLE_FDK_CRCINFO hCrcInfo, HANDLE_FDK_BITSTREAM hBs,
+ const INT reg) {
USHORT crc = hCrcInfo->crcValue;
CCrcRegData *rD = &hCrcInfo->crcRegData[reg];
FDK_BITSTREAM bsReader;
- if (hBs->ConfigCache==BS_READER) {
+ if (hBs->ConfigCache == BS_READER) {
bsReader = *hBs;
- FDKpushBiDirectional(&bsReader, -(INT)(rD->validBits-FDKgetValidBits(&bsReader)));
- }
- else {
- FDKinitBitStream(&bsReader, hBs->hBitBuf.Buffer, hBs->hBitBuf.bufSize, hBs->hBitBuf.ValidBits, BS_READER);
+ FDKpushBiDirectional(&bsReader,
+ -(INT)(rD->validBits - FDKgetValidBits(&bsReader)));
+ } else {
+ FDKinitBitStream(&bsReader, hBs->hBitBuf.Buffer, hBs->hBitBuf.bufSize,
+ hBs->hBitBuf.ValidBits, BS_READER);
FDKpushBiDirectional(&bsReader, rD->validBits);
}
int bits, rBits;
- rBits = (rD->maxBits>=0) ? rD->maxBits : -rD->maxBits; /* ramaining bits */
- if ((rD->maxBits>0) && (((INT)rD->bitBufCntBits>>3<<3)<rBits) ) {
+ rBits = (rD->maxBits >= 0) ? rD->maxBits : -rD->maxBits; /* ramaining bits */
+ if ((rD->maxBits > 0) && (((INT)rD->bitBufCntBits >> 3 << 3) < rBits)) {
bits = rD->bitBufCntBits;
- }
- else {
+ } else {
bits = rBits;
}
int words = bits >> 3; /* processing bytes */
int mBits = bits & 0x7; /* modulo bits */
- if(hCrcInfo->pCrcLookup) {
- rBits -= (calcCrc_Bytes(&crc, hCrcInfo->pCrcLookup, &bsReader, words)<<3);
- }
- else {
- rBits -= calcCrc_Bits(&crc, hCrcInfo->crcMask, hCrcInfo->crcPoly, &bsReader, words<<3 );
+ if (hCrcInfo->pCrcLookup) {
+ rBits -= (calcCrc_Bytes(&crc, hCrcInfo->pCrcLookup, &bsReader, words) << 3);
+ } else {
+ rBits -= calcCrc_Bits(&crc, hCrcInfo->crcMask, hCrcInfo->crcPoly, &bsReader,
+ words << 3);
}
/* remaining valid bits*/
- if(mBits!=0) {
- rBits -= calcCrc_Bits(&crc, hCrcInfo->crcMask, hCrcInfo->crcPoly, &bsReader, mBits );
+ if (mBits != 0) {
+ rBits -= calcCrc_Bits(&crc, hCrcInfo->crcMask, hCrcInfo->crcPoly, &bsReader,
+ mBits);
}
- if (rBits!=0) {
+ if (rBits != 0) {
/* zero bytes */
- if ( (hCrcInfo->pCrcLookup) && (rBits>8) ) {
- rBits -= (calcCrc_Bytes(&crc, hCrcInfo->pCrcLookup, NULL, rBits>>3)<<3);
+ if ((hCrcInfo->pCrcLookup) && (rBits > 8)) {
+ rBits -=
+ (calcCrc_Bytes(&crc, hCrcInfo->pCrcLookup, NULL, rBits >> 3) << 3);
}
/* remaining zero bits */
- if (rBits!=0) {
- rBits -= calcCrc_Bits(&crc, hCrcInfo->crcMask, hCrcInfo->crcPoly, NULL, rBits );
+ if (rBits != 0) {
+ calcCrc_Bits(&crc, hCrcInfo->crcMask, hCrcInfo->crcPoly, NULL, rBits);
}
}
hCrcInfo->crcValue = crc;
}
-