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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 setDataSource(const sp<IStreamSource> &source);
     39 
     40     void setDataSource(
     41             const char *url, const KeyedVector<String8, String8> *headers);
     42 
     43     void setDataSource(int fd, int64_t offset, int64_t length);
     44 
     45     void setVideoSurfaceTexture(const sp<ISurfaceTexture> &surfaceTexture);
     46     void setAudioSink(const sp<MediaPlayerBase::AudioSink> &sink);
     47     void start();
     48 
     49     void pause();
     50     void resume();
     51 
     52     // Will notify the driver through "notifyResetComplete" once finished.
     53     void resetAsync();
     54 
     55     // Will notify the driver through "notifySeekComplete" once finished.
     56     void seekToAsync(int64_t seekTimeUs);
     57 
     58     status_t setVideoScalingMode(int32_t mode);
     59 
     60 protected:
     61     virtual ~NuPlayer();
     62 
     63     virtual void onMessageReceived(const sp<AMessage> &msg);
     64 
     65 public:
     66     struct NuPlayerStreamListener;
     67     struct Source;
     68 
     69 private:
     70     struct Decoder;
     71     struct GenericSource;
     72     struct HTTPLiveSource;
     73     struct Renderer;
     74     struct RTSPSource;
     75     struct StreamingSource;
     76 
     77     enum {
     78         kWhatSetDataSource              = '=DaS',
     79         kWhatSetVideoNativeWindow       = '=NaW',
     80         kWhatSetAudioSink               = '=AuS',
     81         kWhatMoreDataQueued             = 'more',
     82         kWhatStart                      = 'strt',
     83         kWhatScanSources                = 'scan',
     84         kWhatVideoNotify                = 'vidN',
     85         kWhatAudioNotify                = 'audN',
     86         kWhatRendererNotify             = 'renN',
     87         kWhatReset                      = 'rset',
     88         kWhatSeek                       = 'seek',
     89         kWhatPause                      = 'paus',
     90         kWhatResume                     = 'rsme',
     91     };
     92 
     93     wp<NuPlayerDriver> mDriver;
     94     bool mUIDValid;
     95     uid_t mUID;
     96     sp<Source> mSource;
     97     sp<NativeWindowWrapper> mNativeWindow;
     98     sp<MediaPlayerBase::AudioSink> mAudioSink;
     99     sp<Decoder> mVideoDecoder;
    100     bool mVideoIsAVC;
    101     sp<Decoder> mAudioDecoder;
    102     sp<Renderer> mRenderer;
    103 
    104     bool mAudioEOS;
    105     bool mVideoEOS;
    106 
    107     bool mScanSourcesPending;
    108     int32_t mScanSourcesGeneration;
    109 
    110     enum FlushStatus {
    111         NONE,
    112         AWAITING_DISCONTINUITY,
    113         FLUSHING_DECODER,
    114         FLUSHING_DECODER_SHUTDOWN,
    115         SHUTTING_DOWN_DECODER,
    116         FLUSHED,
    117         SHUT_DOWN,
    118     };
    119 
    120     // Once the current flush is complete this indicates whether the
    121     // notion of time has changed.
    122     bool mTimeDiscontinuityPending;
    123 
    124     FlushStatus mFlushingAudio;
    125     FlushStatus mFlushingVideo;
    126     bool mResetInProgress;
    127     bool mResetPostponed;
    128 
    129     int64_t mSkipRenderingAudioUntilMediaTimeUs;
    130     int64_t mSkipRenderingVideoUntilMediaTimeUs;
    131 
    132     int64_t mVideoLateByUs;
    133     int64_t mNumFramesTotal, mNumFramesDropped;
    134 
    135     int32_t mVideoScalingMode;
    136 
    137     status_t instantiateDecoder(bool audio, sp<Decoder> *decoder);
    138 
    139     status_t feedDecoderInputData(bool audio, const sp<AMessage> &msg);
    140     void renderBuffer(bool audio, const sp<AMessage> &msg);
    141 
    142     void notifyListener(int msg, int ext1, int ext2);
    143 
    144     void finishFlushIfPossible();
    145 
    146     void flushDecoder(bool audio, bool needShutdown);
    147 
    148     static bool IsFlushingState(FlushStatus state, bool *needShutdown = NULL);
    149 
    150     void finishReset();
    151     void postScanSources();
    152 
    153     DISALLOW_EVIL_CONSTRUCTORS(NuPlayer);
    154 };
    155 
    156 }  // namespace android
    157 
    158 #endif  // NU_PLAYER_H_
    159