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      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 
     32 namespace android {
     33 
     34 struct ICrypto;
     35 struct IDrm;
     36 struct IHDCP;
     37 struct IMediaCodecList;
     38 struct IMediaHTTPService;
     39 class IMediaRecorder;
     40 class IOMX;
     41 class IRemoteDisplay;
     42 class IRemoteDisplayClient;
     43 struct IStreamSource;
     44 
     45 class IMediaPlayerService: public IInterface
     46 {
     47 public:
     48     DECLARE_META_INTERFACE(MediaPlayerService);
     49 
     50     virtual sp<IMediaRecorder> createMediaRecorder() = 0;
     51     virtual sp<IMediaMetadataRetriever> createMetadataRetriever() = 0;
     52     virtual sp<IMediaPlayer> create(const sp<IMediaPlayerClient>& client, int audioSessionId = 0) = 0;
     53 
     54     virtual status_t         decode(
     55             const sp<IMediaHTTPService> &httpService,
     56             const char* url,
     57             uint32_t *pSampleRate,
     58             int* pNumChannels,
     59             audio_format_t* pFormat,
     60             const sp<IMemoryHeap>& heap, size_t *pSize) = 0;
     61 
     62     virtual status_t         decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate,
     63                                     int* pNumChannels, audio_format_t* pFormat,
     64                                     const sp<IMemoryHeap>& heap, size_t *pSize) = 0;
     65     virtual sp<IOMX>            getOMX() = 0;
     66     virtual sp<ICrypto>         makeCrypto() = 0;
     67     virtual sp<IDrm>            makeDrm() = 0;
     68     virtual sp<IHDCP>           makeHDCP(bool createEncryptionModule) = 0;
     69     virtual sp<IMediaCodecList> getCodecList() const = 0;
     70 
     71     // Connects to a remote display.
     72     // 'iface' specifies the address of the local interface on which to listen for
     73     // a connection from the remote display as an ip address and port number
     74     // of the form "x.x.x.x:y".  The media server should call back into the provided remote
     75     // display client when display connection, disconnection or errors occur.
     76     // The assumption is that at most one remote display will be connected to the
     77     // provided interface at a time.
     78     virtual sp<IRemoteDisplay> listenForRemoteDisplay(const sp<IRemoteDisplayClient>& client,
     79             const String8& iface) = 0;
     80 
     81     // codecs and audio devices usage tracking for the battery app
     82     enum BatteryDataBits {
     83         // tracking audio codec
     84         kBatteryDataTrackAudio          = 0x1,
     85         // tracking video codec
     86         kBatteryDataTrackVideo          = 0x2,
     87         // codec is started, otherwise codec is paused
     88         kBatteryDataCodecStarted        = 0x4,
     89         // tracking decoder (for media player),
     90         // otherwise tracking encoder (for media recorder)
     91         kBatteryDataTrackDecoder        = 0x8,
     92         // start to play an audio on an audio device
     93         kBatteryDataAudioFlingerStart   = 0x10,
     94         // stop/pause the audio playback
     95         kBatteryDataAudioFlingerStop    = 0x20,
     96         // audio is rounted to speaker
     97         kBatteryDataSpeakerOn           = 0x40,
     98         // audio is rounted to devices other than speaker
     99         kBatteryDataOtherAudioDeviceOn  = 0x80,
    100     };
    101 
    102     virtual void addBatteryData(uint32_t params) = 0;
    103     virtual status_t pullBatteryData(Parcel* reply) = 0;
    104 };
    105 
    106 // ----------------------------------------------------------------------------
    107 
    108 class BnMediaPlayerService: public BnInterface<IMediaPlayerService>
    109 {
    110 public:
    111     virtual status_t    onTransact( uint32_t code,
    112                                     const Parcel& data,
    113                                     Parcel* reply,
    114                                     uint32_t flags = 0);
    115 };
    116 
    117 }; // namespace android
    118 
    119 #endif // ANDROID_IMEDIAPLAYERSERVICE_H
    120