IMediaPlayerService.h revision 318ad9c1d9d6515026dfc2c021359d27decaa7a1 
1/*
2 * Copyright (C) 2008 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_IMEDIAPLAYERSERVICE_H
18#define ANDROID_IMEDIAPLAYERSERVICE_H
19
20#include <utils/Errors.h>  // for status_t
21#include <utils/RefBase.h>
22#include <binder/IInterface.h>
23#include <binder/Parcel.h>
24
25#include <media/IMediaPlayerClient.h>
26#include <media/IMediaPlayer.h>
27#include <media/IMediaMetadataRetriever.h>
28
29namespace android {
30
31class IMediaRecorder;
32class IOMX;
33
34class IMediaPlayerService: public IInterface
35{
36public:
37    DECLARE_META_INTERFACE(MediaPlayerService);
38
39    virtual sp<IMediaRecorder>  createMediaRecorder(pid_t pid) = 0;
40    virtual sp<IMediaMetadataRetriever> createMetadataRetriever(pid_t pid) = 0;
41    virtual sp<IMediaPlayer>    create(pid_t pid, const sp<IMediaPlayerClient>& client, const char* url) = 0;
42    virtual sp<IMediaPlayer>    create(pid_t pid, const sp<IMediaPlayerClient>& client, int fd, int64_t offset, int64_t length) = 0;
43    virtual sp<IMemory>         decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) = 0;
44    virtual sp<IMemory>         decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) = 0;
45    virtual sp<IOMX>            getOMX() = 0;
46
47    // Take a peek at currently playing audio, for visualization purposes.
48    // This returns a buffer of 16 bit mono PCM data, or NULL if no visualization buffer is currently available.
49    virtual sp<IMemory>         snoop() = 0;
50};
51
52// ----------------------------------------------------------------------------
53
54class BnMediaPlayerService: public BnInterface<IMediaPlayerService>
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}; // namespace android
64
65#endif // ANDROID_IMEDIAPLAYERSERVICE_H
66