1 /*
2  * Copyright (C) 2007 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 #ifndef IAUDIORECORD_H_
18 #define IAUDIORECORD_H_
19 
20 #include <stdint.h>
21 #include <sys/types.h>
22 
23 #include <utils/RefBase.h>
24 #include <utils/Errors.h>
25 #include <binder/IInterface.h>
26 #include <binder/IMemory.h>
27 
28 
29 namespace android {
30 
31 // ----------------------------------------------------------------------------
32 
33 class IAudioRecord : public IInterface
34 {
35 public:
36     DECLARE_META_INTERFACE(AudioRecord);
37 
38     /* After it's created the track is not active. Call start() to
39      * make it active. If set, the callback will start being called.
40      */
41     virtual status_t    start() = 0;
42 
43     /* Stop a track. If set, the callback will cease being called and
44      * obtainBuffer will return an error. Buffers that are already released
45      * will be processed, unless flush() is called.
46      */
47     virtual void        stop() = 0;
48 
49     /* get this tracks control block */
50     virtual sp<IMemory> getCblk() const = 0;
51 };
52 
53 // ----------------------------------------------------------------------------
54 
55 class BnAudioRecord : public BnInterface<IAudioRecord>
56 {
57 public:
58     virtual status_t    onTransact( uint32_t code,
59                                     const Parcel& data,
60                                     Parcel* reply,
61                                     uint32_t flags = 0);
62 };
63 
64 // ----------------------------------------------------------------------------
65 
66 }; // namespace android
67 
68 #endif /*IAUDIORECORD_H_*/
69