AudioBufferProvider.h revision 08e83bb3b7cc41f603867acbeb1168019cf535fe 
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 ANDROID_AUDIO_BUFFER_PROVIDER_H
18#define ANDROID_AUDIO_BUFFER_PROVIDER_H
19
20#include <stdint.h>
21#include <sys/types.h>
22#include <utils/Errors.h>
23
24namespace android {
25// ----------------------------------------------------------------------------
26
27class AudioBufferProvider
28{
29public:
30
31    struct Buffer {
32        union {
33            void*       raw;
34            short*      i16;
35            int8_t*     i8;
36        };
37        size_t frameCount;
38    };
39
40    virtual ~AudioBufferProvider() {}
41
42    virtual status_t getNextBuffer(Buffer* buffer) = 0;
43    virtual void releaseBuffer(Buffer* buffer) = 0;
44};
45
46// ----------------------------------------------------------------------------
47}; // namespace android
48
49#endif // ANDROID_AUDIO_BUFFER_PROVIDER_H
50