99 lines
3.2 KiB
C
99 lines
3.2 KiB
C
/*
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* Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The OpenAirInterface Software Alliance licenses this file to You under
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* the OAI Public License, Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.openairinterface.org/?page_id=698
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*-------------------------------------------------------------------------------
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* For more information about the OpenAirInterface (OAI) Software Alliance:
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* contact@openairinterface.org
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include "TLVEncoder.h"
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#include "TLVDecoder.h"
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#include "SupportedCodecList.h"
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int decode_supported_codec_list(SupportedCodecList *supportedcodeclist, uint8_t iei, uint8_t *buffer, uint32_t len)
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{
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int decoded = 0;
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uint8_t ielen = 0;
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if (iei > 0) {
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CHECK_IEI_DECODER(iei, *buffer);
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decoded++;
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}
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ielen = *(buffer + decoded);
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decoded++;
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CHECK_LENGTH_DECODER(len - decoded, ielen);
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supportedcodeclist->systemidentification = *(buffer + decoded);
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decoded++;
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ielen--;
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supportedcodeclist->lengthofbitmap = *(buffer + decoded);
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decoded++;
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ielen--;
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//IES_DECODE_U16(supportedcodeclist->codecbitmap, *(buffer + decoded));
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IES_DECODE_U16(buffer, decoded, supportedcodeclist->codecbitmap);
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ielen=ielen -2;
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#if defined (NAS_DEBUG)
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dump_supported_codec_list_xml(supportedcodeclist, iei);
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#endif
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decoded = decoded + ielen;
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return decoded;
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}
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int encode_supported_codec_list(SupportedCodecList *supportedcodeclist, uint8_t iei, uint8_t *buffer, uint32_t len)
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{
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uint8_t *lenPtr;
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uint32_t encoded = 0;
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/* Checking IEI and pointer */
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CHECK_PDU_POINTER_AND_LENGTH_ENCODER(buffer, SUPPORTED_CODEC_LIST_MINIMUM_LENGTH, len);
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#if defined (NAS_DEBUG)
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dump_supported_codec_list_xml(supportedcodeclist, iei);
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#endif
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if (iei > 0) {
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*buffer = iei;
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encoded++;
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}
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lenPtr = (buffer + encoded);
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encoded ++;
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*(buffer + encoded) = supportedcodeclist->systemidentification;
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encoded++;
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*(buffer + encoded) = supportedcodeclist->lengthofbitmap;
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encoded++;
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IES_ENCODE_U16(buffer, encoded, supportedcodeclist->codecbitmap);
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*lenPtr = encoded - 1 - ((iei > 0) ? 1 : 0);
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return encoded;
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}
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void dump_supported_codec_list_xml(SupportedCodecList *supportedcodeclist, uint8_t iei)
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{
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printf("<Supported Codec List>\n");
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if (iei > 0)
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/* Don't display IEI if = 0 */
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printf(" <IEI>0x%X</IEI>\n", iei);
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printf(" <System identification>%u</System identification>\n", supportedcodeclist->systemidentification);
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printf(" <Length of bitmap>%u</Length of bitmap>\n", supportedcodeclist->lengthofbitmap);
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printf(" <Codec bitmap>%u</Codec bitmap>\n", supportedcodeclist->codecbitmap);
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printf("</Supported Codec List>\n");
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}
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