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      1 /*
      2  * Copyright (C) 2010 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 NU_PLAYER_H_
     18 
     19 #define NU_PLAYER_H_
     20 
     21 #include <media/MediaPlayerInterface.h>
     22 #include <media/stagefright/foundation/AHandler.h>
     23 #include <media/stagefright/NativeWindowWrapper.h>
     24 
     25 namespace android {
     26 
     27 struct ACodec;
     28 struct MetaData;
     29 struct NuPlayerDriver;
     30 
     31 struct NuPlayer : public AHandler {
     32     NuPlayer();
     33 
     34     void setUID(uid_t uid);
     35 
     36     void setDriver(const wp<NuPlayerDriver> &driver);
     37 
     38     void setDataSourceAsync(const sp<IStreamSource> &source);
     39 
     40     void setDataSourceAsync(
     41             const char *url, const KeyedVector<String8, String8> *headers);
     42 
     43     void setDataSourceAsync(int fd, int64_t offset, int64_t length);
     44 
     45     void prepareAsync();
     46 
     47     void setVideoSurfaceTextureAsync(
     48             const sp<IGraphicBufferProducer> &bufferProducer);
     49 
     50     void setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink);
     51     void start();
     52 
     53     void pause();
     54     void resume();
     55 
     56     // Will notify the driver through "notifyResetComplete" once finished.
     57     void resetAsync();
     58 
     59     // Will notify the driver through "notifySeekComplete" once finished.
     60     void seekToAsync(int64_t seekTimeUs);
     61 
     62     status_t setVideoScalingMode(int32_t mode);
     63     status_t getTrackInfo(Parcel* reply) const;
     64     status_t selectTrack(size_t trackIndex, bool select);
     65 
     66 protected:
     67     virtual ~NuPlayer();
     68 
     69     virtual void onMessageReceived(const sp<AMessage> &msg);
     70 
     71 public:
     72     struct NuPlayerStreamListener;
     73     struct Source;
     74 
     75 private:
     76     struct Decoder;
     77     struct GenericSource;
     78     struct HTTPLiveSource;
     79     struct Renderer;
     80     struct RTSPSource;
     81     struct StreamingSource;
     82     struct Action;
     83     struct SeekAction;
     84     struct SetSurfaceAction;
     85     struct ShutdownDecoderAction;
     86     struct PostMessageAction;
     87     struct SimpleAction;
     88 
     89     enum {
     90         kWhatSetDataSource              = '=DaS',
     91         kWhatPrepare                    = 'prep',
     92         kWhatSetVideoNativeWindow       = '=NaW',
     93         kWhatSetAudioSink               = '=AuS',
     94         kWhatMoreDataQueued             = 'more',
     95         kWhatStart                      = 'strt',
     96         kWhatScanSources                = 'scan',
     97         kWhatVideoNotify                = 'vidN',
     98         kWhatAudioNotify                = 'audN',
     99         kWhatRendererNotify             = 'renN',
    100         kWhatReset                      = 'rset',
    101         kWhatSeek                       = 'seek',
    102         kWhatPause                      = 'paus',
    103         kWhatResume                     = 'rsme',
    104         kWhatPollDuration               = 'polD',
    105         kWhatSourceNotify               = 'srcN',
    106         kWhatGetTrackInfo               = 'gTrI',
    107         kWhatSelectTrack                = 'selT',
    108     };
    109 
    110     wp<NuPlayerDriver> mDriver;
    111     bool mUIDValid;
    112     uid_t mUID;
    113     sp<Source> mSource;
    114     uint32_t mSourceFlags;
    115     sp<NativeWindowWrapper> mNativeWindow;
    116     sp<MediaPlayerBase::AudioSink> mAudioSink;
    117     sp<Decoder> mVideoDecoder;
    118     bool mVideoIsAVC;
    119     sp<Decoder> mAudioDecoder;
    120     sp<Renderer> mRenderer;
    121 
    122     List<sp<Action> > mDeferredActions;
    123 
    124     bool mAudioEOS;
    125     bool mVideoEOS;
    126 
    127     bool mScanSourcesPending;
    128     int32_t mScanSourcesGeneration;
    129 
    130     int32_t mPollDurationGeneration;
    131 
    132     enum FlushStatus {
    133         NONE,
    134         AWAITING_DISCONTINUITY,
    135         FLUSHING_DECODER,
    136         FLUSHING_DECODER_SHUTDOWN,
    137         SHUTTING_DOWN_DECODER,
    138         FLUSHED,
    139         SHUT_DOWN,
    140     };
    141 
    142     // Once the current flush is complete this indicates whether the
    143     // notion of time has changed.
    144     bool mTimeDiscontinuityPending;
    145 
    146     FlushStatus mFlushingAudio;
    147     FlushStatus mFlushingVideo;
    148 
    149     int64_t mSkipRenderingAudioUntilMediaTimeUs;
    150     int64_t mSkipRenderingVideoUntilMediaTimeUs;
    151 
    152     int64_t mVideoLateByUs;
    153     int64_t mNumFramesTotal, mNumFramesDropped;
    154 
    155     int32_t mVideoScalingMode;
    156 
    157     bool mStarted;
    158 
    159     status_t instantiateDecoder(bool audio, sp<Decoder> *decoder);
    160 
    161     status_t feedDecoderInputData(bool audio, const sp<AMessage> &msg);
    162     void renderBuffer(bool audio, const sp<AMessage> &msg);
    163 
    164     void notifyListener(int msg, int ext1, int ext2, const Parcel *in = NULL);
    165 
    166     void finishFlushIfPossible();
    167 
    168     void flushDecoder(bool audio, bool needShutdown);
    169 
    170     static bool IsFlushingState(FlushStatus state, bool *needShutdown = NULL);
    171 
    172     void postScanSources();
    173 
    174     void schedulePollDuration();
    175     void cancelPollDuration();
    176 
    177     void processDeferredActions();
    178 
    179     void performSeek(int64_t seekTimeUs);
    180     void performDecoderFlush();
    181     void performDecoderShutdown(bool audio, bool video);
    182     void performReset();
    183     void performScanSources();
    184     void performSetSurface(const sp<NativeWindowWrapper> &wrapper);
    185 
    186     void onSourceNotify(const sp<AMessage> &msg);
    187 
    188     void queueDecoderShutdown(
    189             bool audio, bool video, const sp<AMessage> &reply);
    190 
    191     DISALLOW_EVIL_CONSTRUCTORS(NuPlayer);
    192 };
    193 
    194 }  // namespace android
    195 
    196 #endif  // NU_PLAYER_H_
    197