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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_IMEDIAPLAYER_H
     18 #define ANDROID_IMEDIAPLAYER_H
     19 
     20 #include <utils/RefBase.h>
     21 #include <binder/IInterface.h>
     22 #include <binder/Parcel.h>
     23 #include <utils/KeyedVector.h>
     24 
     25 namespace android {
     26 
     27 class Parcel;
     28 class Surface;
     29 class IStreamSource;
     30 class ISurfaceTexture;
     31 
     32 class IMediaPlayer: public IInterface
     33 {
     34 public:
     35     DECLARE_META_INTERFACE(MediaPlayer);
     36 
     37     virtual void            disconnect() = 0;
     38 
     39     virtual status_t        setDataSource(const char *url,
     40                                     const KeyedVector<String8, String8>* headers) = 0;
     41     virtual status_t        setDataSource(int fd, int64_t offset, int64_t length) = 0;
     42     virtual status_t        setDataSource(const sp<IStreamSource>& source) = 0;
     43     virtual status_t        setVideoSurface(const sp<Surface>& surface) = 0;
     44     virtual status_t        setVideoSurfaceTexture(
     45                                     const sp<ISurfaceTexture>& surfaceTexture) = 0;
     46     virtual status_t        prepareAsync() = 0;
     47     virtual status_t        start() = 0;
     48     virtual status_t        stop() = 0;
     49     virtual status_t        pause() = 0;
     50     virtual status_t        isPlaying(bool* state) = 0;
     51     virtual status_t        seekTo(int msec) = 0;
     52     virtual status_t        getCurrentPosition(int* msec) = 0;
     53     virtual status_t        getDuration(int* msec) = 0;
     54     virtual status_t        reset() = 0;
     55     virtual status_t        setAudioStreamType(int type) = 0;
     56     virtual status_t        setLooping(int loop) = 0;
     57     virtual status_t        setVolume(float leftVolume, float rightVolume) = 0;
     58     virtual status_t        setAuxEffectSendLevel(float level) = 0;
     59     virtual status_t        attachAuxEffect(int effectId) = 0;
     60     virtual status_t        setParameter(int key, const Parcel& request) = 0;
     61     virtual status_t        getParameter(int key, Parcel* reply) = 0;
     62 
     63     // Invoke a generic method on the player by using opaque parcels
     64     // for the request and reply.
     65     // @param request Parcel that must start with the media player
     66     // interface token.
     67     // @param[out] reply Parcel to hold the reply data. Cannot be null.
     68     // @return OK if the invocation was made successfully.
     69     virtual status_t        invoke(const Parcel& request, Parcel *reply) = 0;
     70 
     71     // Set a new metadata filter.
     72     // @param filter A set of allow and drop rules serialized in a Parcel.
     73     // @return OK if the invocation was made successfully.
     74     virtual status_t        setMetadataFilter(const Parcel& filter) = 0;
     75 
     76     // Retrieve a set of metadata.
     77     // @param update_only Include only the metadata that have changed
     78     //                    since the last invocation of getMetadata.
     79     //                    The set is built using the unfiltered
     80     //                    notifications the native player sent to the
     81     //                    MediaPlayerService during that period of
     82     //                    time. If false, all the metadatas are considered.
     83     // @param apply_filter If true, once the metadata set has been built based
     84     //                     on the value update_only, the current filter is
     85     //                     applied.
     86     // @param[out] metadata On exit contains a set (possibly empty) of metadata.
     87     //                      Valid only if the call returned OK.
     88     // @return OK if the invocation was made successfully.
     89     virtual status_t        getMetadata(bool update_only,
     90                                         bool apply_filter,
     91                                         Parcel *metadata) = 0;
     92 };
     93 
     94 // ----------------------------------------------------------------------------
     95 
     96 class BnMediaPlayer: public BnInterface<IMediaPlayer>
     97 {
     98 public:
     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_IMEDIAPLAYER_H
    108