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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 
     36 class IMediaPlayerService: public IInterface
     37 {
     38 public:
     39     DECLARE_META_INTERFACE(MediaPlayerService);
     40 
     41     virtual sp<IMediaRecorder>  createMediaRecorder(pid_t pid) = 0;
     42     virtual sp<IMediaMetadataRetriever> createMetadataRetriever(pid_t pid) = 0;
     43     virtual sp<IMediaPlayer>    create(pid_t pid, const sp<IMediaPlayerClient>& client, const char* url, const KeyedVector<String8, String8> *headers = NULL) = 0;
     44     virtual sp<IMediaPlayer>    create(pid_t pid, const sp<IMediaPlayerClient>& client, int fd, int64_t offset, int64_t length) = 0;
     45     virtual sp<IMemory>         decode(const char* url, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) = 0;
     46     virtual sp<IMemory>         decode(int fd, int64_t offset, int64_t length, uint32_t *pSampleRate, int* pNumChannels, int* pFormat) = 0;
     47     virtual sp<IOMX>            getOMX() = 0;
     48 
     49     // Take a peek at currently playing audio, for visualization purposes.
     50     // This returns a buffer of 16 bit mono PCM data, or NULL if no visualization buffer is currently available.
     51     virtual sp<IMemory>         snoop() = 0;
     52 };
     53 
     54 // ----------------------------------------------------------------------------
     55 
     56 class BnMediaPlayerService: public BnInterface<IMediaPlayerService>
     57 {
     58 public:
     59     virtual status_t    onTransact( uint32_t code,
     60                                     const Parcel& data,
     61                                     Parcel* reply,
     62                                     uint32_t flags = 0);
     63 };
     64 
     65 }; // namespace android
     66 
     67 #endif // ANDROID_IMEDIAPLAYERSERVICE_H
     68