IAudioRecord.h revision 6dbc1359f778575d09d6da722b060a6d72c2e7c5 
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
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     * tid identifies the client callback thread, or 0 if not needed.
41     */
42    virtual status_t    start(pid_t tid) = 0;
43
44    /* Stop a track. If set, the callback will cease being called and
45     * obtainBuffer will return an error. Buffers that are already released
46     * will be processed, unless flush() is called.
47     */
48    virtual void        stop() = 0;
49
50    /* get this tracks control block */
51    virtual sp<IMemory> getCblk() const = 0;
52};
53
54// ----------------------------------------------------------------------------
55
56class BnAudioRecord : public BnInterface<IAudioRecord>
57{
58public:
59    virtual status_t    onTransact( uint32_t code,
60                                    const Parcel& data,
61                                    Parcel* reply,
62                                    uint32_t flags = 0);
63};
64
65// ----------------------------------------------------------------------------
66
67}; // namespace android
68
69#endif /*IAUDIORECORD_H_*/
70