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      1 /*
      2  * Copyrightm (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #include <strings.h>
     18 
     19 #include "AudioCodec.h"
     20 
     21 extern AudioCodec *newAlawCodec();
     22 extern AudioCodec *newUlawCodec();
     23 extern AudioCodec *newGsmCodec();
     24 extern AudioCodec *newAmrCodec();
     25 extern AudioCodec *newGsmEfrCodec();
     26 
     27 struct AudioCodecType {
     28     const char *name;
     29     AudioCodec *(*create)();
     30 } gAudioCodecTypes[] = {
     31     {"PCMA", newAlawCodec},
     32     {"PCMU", newUlawCodec},
     33     {"GSM", newGsmCodec},
     34     {"AMR", newAmrCodec},
     35     {"GSM-EFR", newGsmEfrCodec},
     36     {NULL, NULL},
     37 };
     38 
     39 AudioCodec *newAudioCodec(const char *codecName)
     40 {
     41     AudioCodecType *type = gAudioCodecTypes;
     42     while (type->name != NULL) {
     43         if (strcasecmp(codecName, type->name) == 0) {
     44             AudioCodec *codec = type->create();
     45             codec->name = type->name;
     46             return codec;
     47         }
     48         ++type;
     49     }
     50     return NULL;
     51 }
     52