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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 
newAudioCodec(const char * codecName)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