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
28namespace android {
29
30// ----------------------------------------------------------------------------
31
32class IAudioRecord : public IInterface
33{
34public:
35    DECLARE_META_INTERFACE(AudioRecord);
36
37    /* After it's created the track is not active. Call start() to
38     * make it active.
39     */
40    virtual status_t    start(int /*AudioSystem::sync_event_t*/ event, int triggerSession) = 0;
41
42    /* Stop a track. If set, the callback will cease being called and
43     * obtainBuffer will return an error. Buffers that are already released
44     * will be processed, unless flush() is called.
45     */
46    virtual void        stop() = 0;
47
48    /* get this tracks control block */
49    virtual sp<IMemory> getCblk() const = 0;
50};
51
52// ----------------------------------------------------------------------------
53
54class BnAudioRecord : public BnInterface<IAudioRecord>
55{
56public:
57    virtual status_t    onTransact( uint32_t code,
58                                    const Parcel& data,
59                                    Parcel* reply,
60                                    uint32_t flags = 0);
61};
62
63// ----------------------------------------------------------------------------
64
65}; // namespace android
66
67#endif /*IAUDIORECORD_H_*/
68