1/*
2 * Copyright (C) 2012 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_EXTENDED_AUDIO_BUFFER_PROVIDER_H
18#define ANDROID_EXTENDED_AUDIO_BUFFER_PROVIDER_H
19
20#include <media/AudioBufferProvider.h>
21#include <media/AudioTimestamp.h>
22
23namespace android {
24
25class ExtendedAudioBufferProvider : public AudioBufferProvider {
26public:
27    virtual size_t  framesReady() const = 0;  // see description at AudioFlinger.h
28
29    // Return the total number of frames that have been obtained and released
30    virtual int64_t  framesReleased() const { return 0; }
31
32    // Invoked by buffer consumer when a new timestamp is available.
33    // Default implementation ignores the timestamp.
34    virtual void    onTimestamp(const ExtendedTimestamp& timestamp) { }
35};
36
37}   // namespace android
38
39#endif  // ANDROID_EXTENDED_AUDIO_BUFFER_PROVIDER_H
40