IAudioRecord.h revision 2729ea9262ca60d93047e984739887cfc89e82eb 
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 <utils/IInterface.h>
26#include <utils/IMemory.h>
27
28
29namespace android {
30
31// ----------------------------------------------------------------------------
32
33class IAudioRecord : public IInterface
34{
35public:
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
55class BnAudioRecord : public BnInterface<IAudioRecord>
56{
57public:
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