IMediaPlayerService.h revision cc82dc6d500023eba6048616301a4b12682458db 
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/KeyedVector.h>
22#include <utils/RefBase.h>
23#include <utils/String8.h>
24#include <binder/IInterface.h>
25#include <binder/Parcel.h>
26#include <system/audio.h>
27
28#include <media/IMediaPlayerClient.h>
29#include <media/IMediaPlayer.h>
30#include <media/IMediaMetadataRetriever.h>
31
32namespace android {
33
34struct ICrypto;
35struct IDrm;
36struct IHDCP;
37class IMediaRecorder;
38class IOMX;
39class IRemoteDisplay;
40class IRemoteDisplayClient;
41struct IStreamSource;
42
43class IMediaPlayerService: public IInterface
44{
45public:
46    DECLARE_META_INTERFACE(MediaPlayerService);
47
48    virtual sp<IMediaRecorder> createMediaRecorder() = 0;
49    virtual sp<IMediaMetadataRetriever> createMetadataRetriever() = 0;
50    virtual sp<IMediaPlayer> create(const sp<IMediaPlayerClient>& client, int audioSessionId = 0) = 0;
51
52    virtual sp<IMemory>         decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat) = 0;
53    virtual sp<IMemory>         decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, audio_format_t* pFormat) = 0;
54    virtual sp<IOMX>            getOMX() = 0;
55    virtual sp<ICrypto>         makeCrypto() = 0;
56    virtual sp<IDrm>            makeDrm() = 0;
57    virtual sp<IHDCP>           makeHDCP(bool createEncryptionModule) = 0;
58
59    // Connects to a remote display.
60    // 'iface' specifies the address of the local interface on which to listen for
61    // a connection from the remote display as an ip address and port number
62    // of the form "x.x.x.x:y".  The media server should call back into the provided remote
63    // display client when display connection, disconnection or errors occur.
64    // The assumption is that at most one remote display will be connected to the
65    // provided interface at a time.
66    virtual sp<IRemoteDisplay> listenForRemoteDisplay(const sp<IRemoteDisplayClient>& client,
67            const String8& iface) = 0;
68
69    // codecs and audio devices usage tracking for the battery app
70    enum BatteryDataBits {
71        // tracking audio codec
72        kBatteryDataTrackAudio          = 0x1,
73        // tracking video codec
74        kBatteryDataTrackVideo          = 0x2,
75        // codec is started, otherwise codec is paused
76        kBatteryDataCodecStarted        = 0x4,
77        // tracking decoder (for media player),
78        // otherwise tracking encoder (for media recorder)
79        kBatteryDataTrackDecoder        = 0x8,
80        // start to play an audio on an audio device
81        kBatteryDataAudioFlingerStart   = 0x10,
82        // stop/pause the audio playback
83        kBatteryDataAudioFlingerStop    = 0x20,
84        // audio is rounted to speaker
85        kBatteryDataSpeakerOn           = 0x40,
86        // audio is rounted to devices other than speaker
87        kBatteryDataOtherAudioDeviceOn  = 0x80,
88    };
89
90    virtual void addBatteryData(uint32_t params) = 0;
91    virtual status_t pullBatteryData(Parcel* reply) = 0;
92};
93
94// ----------------------------------------------------------------------------
95
96class BnMediaPlayerService: public BnInterface<IMediaPlayerService>
97{
98public:
99    virtual status_t    onTransact( uint32_t code,
100                                    const Parcel& data,
101                                    Parcel* reply,
102                                    uint32_t flags = 0);
103};
104
105}; // namespace android
106
107#endif // ANDROID_IMEDIAPLAYERSERVICE_H
108