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      1 /*
      2 **
      3 ** Copyright (C) 2008 The Android Open Source Project
      4 **
      5 ** Licensed under the Apache License, Version 2.0 (the "License");
      6 ** you may not use this file except in compliance with the License.
      7 ** You may obtain a copy of the License at
      8 **
      9 **     http://www.apache.org/licenses/LICENSE-2.0
     10 **
     11 ** Unless required by applicable law or agreed to in writing, software
     12 ** distributed under the License is distributed on an "AS IS" BASIS,
     13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14 ** See the License for the specific language governing permissions and
     15 ** limitations under the License.
     16 */
     17 
     18 #ifndef ANDROID_IMEDIAMETADATARETRIEVER_H
     19 #define ANDROID_IMEDIAMETADATARETRIEVER_H
     20 
     21 #include <binder/IInterface.h>
     22 #include <binder/Parcel.h>
     23 #include <binder/IMemory.h>
     24 #include <utils/KeyedVector.h>
     25 #include <utils/RefBase.h>
     26 
     27 namespace android {
     28 
     29 class IDataSource;
     30 struct IMediaHTTPService;
     31 
     32 class IMediaMetadataRetriever: public IInterface
     33 {
     34 public:
     35     DECLARE_META_INTERFACE(MediaMetadataRetriever);
     36     virtual void            disconnect() = 0;
     37 
     38     virtual status_t        setDataSource(
     39             const sp<IMediaHTTPService> &httpService,
     40             const char *srcUrl,
     41             const KeyedVector<String8, String8> *headers = NULL) = 0;
     42 
     43     virtual status_t        setDataSource(int fd, int64_t offset, int64_t length) = 0;
     44     virtual status_t        setDataSource(const sp<IDataSource>& dataSource) = 0;
     45     virtual sp<IMemory>     getFrameAtTime(int64_t timeUs, int option) = 0;
     46     virtual sp<IMemory>     extractAlbumArt() = 0;
     47     virtual const char*     extractMetadata(int keyCode) = 0;
     48 };
     49 
     50 // ----------------------------------------------------------------------------
     51 
     52 class BnMediaMetadataRetriever: public BnInterface<IMediaMetadataRetriever>
     53 {
     54 public:
     55     virtual status_t    onTransact(uint32_t code,
     56                                    const Parcel& data,
     57                                    Parcel* reply,
     58                                    uint32_t flags = 0);
     59 };
     60 
     61 }; // namespace android
     62 
     63 #endif // ANDROID_IMEDIAMETADATARETRIEVER_H
     64