| /* ------------------------------------------------------------------ |
| * Copyright (C) 1998-2009 PacketVideo |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either |
| * express or implied. |
| * See the License for the specific language governing permissions |
| * and limitations under the License. |
| * ------------------------------------------------------------------- |
| */ |
| /* |
| ***************************************************************************** |
| * |
| * GSM AMR-NB speech codec R98 Version 7.5.0 March 2, 2001 |
| * R99 Version 3.2.0 |
| * REL-4 Version 4.0.0 |
| * |
| ***************************************************************************** |
| * |
| * File : d_homing.c |
| * |
| ***************************************************************************** |
| */ |
| |
| /* |
| ***************************************************************************** |
| * MODULE INCLUDE FILE AND VERSION ID |
| ***************************************************************************** |
| */ |
| |
| #include "d_homing.h" |
| //const char d_homing_id[] = "@(#)$Id $" d_homing_h; |
| |
| /* |
| ***************************************************************************** |
| * INCLUDE FILES |
| ***************************************************************************** |
| */ |
| |
| #include <stdlib.h> |
| #include "typedef.h" |
| #include "cnst.h" |
| #include "mode.h" |
| #include "bits2prm.h" |
| |
| #include "d_homing.tab" |
| |
| /* get rid of compiler warning "`bitno' defined but never used" */ |
| //static void* dummy[] = { (void *) bitno, (void *) dummy }; |
| |
| |
| /* |
| ***************************************************************************** |
| * PRIVATE PROGRAM CODE |
| ***************************************************************************** |
| */ |
| |
| /* |
| ******************************************************************************** |
| * |
| * Function : dhf_test |
| * In : input_frame[] one frame of encoded serial bits |
| * mode mode type |
| * nparms number of parameters to check |
| * Out : none |
| * Calls : Bits2prm |
| * Tables : d_homing.tab |
| * Compile Defines : none |
| * Return : 0 input frame does not match the decoder homing |
| * frame pattern (up to nparms) |
| * 1 input frame matches the decoder homing frame pattern |
| * (for the first nparms parameters) |
| * Information : The encoded serial bits are converted to all parameters |
| * of the corresponding mode. These parameters are compared |
| * with all parameters of the corresponding decoder homing frame. |
| * |
| ******************************************************************************** |
| */ |
| |
| static Word16 dhf_test(Word16 input_frame[], enum Mode mode, Word16 nparms) |
| { |
| Word16 i, j; |
| Word16 param[MAX_PRM_SIZE]; |
| |
| |
| /* retrieve the encoded parameters from the received serial bits */ |
| Bits2prm(mode, input_frame, param); |
| |
| j = 0; |
| |
| /* check if the encoded parameters matches the parameters |
| of the corresponding decoder homing frame */ |
| for (i = 0; i < nparms; i++) |
| { |
| j = param[i] ^ dhf[mode][i]; |
| |
| if (j) |
| break; |
| } |
| |
| return !j; |
| } |
| |
| |
| /* |
| ***************************************************************************** |
| * PUBLIC PROGRAM CODE |
| ***************************************************************************** |
| */ |
| |
| |
| /* |
| ******************************************************************************** |
| * |
| * Function : decoder_homing_frame_test |
| * In : input_frame[] one frame of encoded serial bits |
| * mode mode type |
| * Out : none |
| * Calls : dhf_test |
| * Tables : d_homing.tab |
| * Compile Defines : none |
| * Return : 0 input frame does not match the decoder homing frame |
| * pattern |
| * 1 input frame matches the decoder homing frame pattern |
| * Information : The encoded serial bits are converted to all parameters |
| * of the corresponding mode. These parameters are compared |
| * with all parameters of the corresponding decoder homing frame. |
| * |
| ******************************************************************************** |
| */ |
| |
| Word16 decoder_homing_frame_test(Word16 input_frame[], enum Mode mode) |
| { |
| /* perform test for COMPLETE parameter frame */ |
| return dhf_test(input_frame, mode, prmno[mode]); |
| } |
| |
| |
| /* |
| ******************************************************************************** |
| * |
| * Function : decoder_homing_frame_test_first |
| * In : input_frame[] one frame of encoded serial bits |
| * mode mode type |
| * Out : none |
| * Calls : Bits2prm |
| * Tables : d_homing.tab |
| * Compile Defines : none |
| * Return : 0 input frame does not match the decoder homing frame |
| * pattern (up to and including the first subframe) |
| * 1 input frame matches the decoder homing frame pattern |
| * (up to and including the first subframe) |
| * Information : The encoded serial bits are converted to all parameters |
| * of the corresponding mode. These parameters are |
| * compared with the parameters for LPC and first subframe |
| * of the decoder homing frame. |
| * |
| ******************************************************************************** |
| */ |
| |
| Word16 decoder_homing_frame_test_first(Word16 input_frame[], enum Mode mode) |
| { |
| /* perform test for FIRST SUBFRAME of parameter frame ONLY */ |
| return dhf_test(input_frame, mode, prmnofsf[mode]); |
| } |
