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