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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 
     27 #include <media/IMediaPlayerClient.h>
     28 #include <media/IMediaPlayer.h>
     29 #include <media/IMediaMetadataRetriever.h>
     30 
     31 namespace android {
     32 
     33 class IMediaRecorder;
     34 class IOMX;
     35 struct IStreamSource;
     36 
     37 class IMediaPlayerService: public IInterface
     38 {
     39 public:
     40     DECLARE_META_INTERFACE(MediaPlayerService);
     41 
     42     virtual sp<IMediaRecorder> createMediaRecorder(pid_t pid) = 0;
     43     virtual sp<IMediaMetadataRetriever> createMetadataRetriever(pid_t pid) = 0;
     44     virtual sp<IMediaPlayer> create(pid_t pid, const sp<IMediaPlayerClient>& client, int audioSessionId = 0) = 0;
     45 
     46     virtual sp<IMemory>         decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) = 0;
     47     virtual sp<IMemory>         decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) = 0;
     48     virtual sp<IOMX>            getOMX() = 0;
     49 
     50     // codecs and audio devices usage tracking for the battery app
     51     enum BatteryDataBits {
     52         // tracking audio codec
     53         kBatteryDataTrackAudio          = 0x1,
     54         // tracking video codec
     55         kBatteryDataTrackVideo          = 0x2,
     56         // codec is started, otherwise codec is paused
     57         kBatteryDataCodecStarted        = 0x4,
     58         // tracking decoder (for media player),
     59         // otherwise tracking encoder (for media recorder)
     60         kBatteryDataTrackDecoder        = 0x8,
     61         // start to play an audio on an audio device
     62         kBatteryDataAudioFlingerStart   = 0x10,
     63         // stop/pause the audio playback
     64         kBatteryDataAudioFlingerStop    = 0x20,
     65         // audio is rounted to speaker
     66         kBatteryDataSpeakerOn           = 0x40,
     67         // audio is rounted to devices other than speaker
     68         kBatteryDataOtherAudioDeviceOn  = 0x80,
     69     };
     70 
     71     virtual void addBatteryData(uint32_t params) = 0;
     72     virtual status_t pullBatteryData(Parcel* reply) = 0;
     73 };
     74 
     75 // ----------------------------------------------------------------------------
     76 
     77 class BnMediaPlayerService: public BnInterface<IMediaPlayerService>
     78 {
     79 public:
     80     virtual status_t    onTransact( uint32_t code,
     81                                     const Parcel& data,
     82                                     Parcel* reply,
     83                                     uint32_t flags = 0);
     84 };
     85 
     86 }; // namespace android
     87 
     88 #endif // ANDROID_IMEDIAPLAYERSERVICE_H
     89