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      1 /*
      2  * Copyright (C) 2011 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_VIDEOEDITOR_PLAYER_H
     18 #define ANDROID_VIDEOEDITOR_PLAYER_H
     19 
     20 #include <media/MediaPlayerInterface.h>
     21 #include <media/AudioTrack.h>
     22 #include "M4xVSS_API.h"
     23 #include "VideoEditorMain.h"
     24 #include "VideoEditorTools.h"
     25 #include "VideoEditorAudioPlayer.h"
     26 #include "NativeWindowRenderer.h"
     27 
     28 namespace android {
     29 
     30 struct PreviewPlayer;
     31 
     32 class VideoEditorPlayer : public MediaPlayerInterface {
     33     public:
     34     class VeAudioOutput: public MediaPlayerBase::AudioSink
     35     {
     36     public:
     37                                 VeAudioOutput();
     38         virtual                 ~VeAudioOutput();
     39 
     40         virtual bool            ready() const { return mTrack != NULL; }
     41         virtual bool            realtime() const { return true; }
     42         virtual ssize_t         bufferSize() const;
     43         virtual ssize_t         frameCount() const;
     44         virtual ssize_t         channelCount() const;
     45         virtual ssize_t         frameSize() const;
     46         virtual uint32_t        latency() const;
     47         virtual float           msecsPerFrame() const;
     48         virtual status_t        getPosition(uint32_t *position) const;
     49         virtual status_t        getFramesWritten(uint32_t*) const;
     50         virtual int             getSessionId() const;
     51 
     52         virtual status_t        open(
     53                 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask,
     54                 audio_format_t format, int bufferCount,
     55                 AudioCallback cb, void *cookie, audio_output_flags_t flags);
     56 
     57         virtual void            start();
     58         virtual ssize_t         write(const void* buffer, size_t size);
     59         virtual void            stop();
     60         virtual void            flush();
     61         virtual void            pause();
     62         virtual void            close();
     63         void setAudioStreamType(audio_stream_type_t streamType) { mStreamType = streamType; }
     64                 void            setVolume(float left, float right);
     65         virtual status_t        dump(int fd,const Vector<String16>& args) const;
     66 
     67         static bool             isOnEmulator();
     68         static int              getMinBufferCount();
     69     private:
     70         static void             setMinBufferCount();
     71         static void             CallbackWrapper(
     72                 int event, void *me, void *info);
     73 
     74         AudioTrack*             mTrack;
     75         AudioCallback           mCallback;
     76         void *                  mCallbackCookie;
     77         audio_stream_type_t     mStreamType;
     78         float                   mLeftVolume;
     79         float                   mRightVolume;
     80         float                   mMsecsPerFrame;
     81         uint32_t                mLatency;
     82         int                     mSessionId;
     83         static bool             mIsOnEmulator;
     84         static int              mMinBufferCount; // 12 for emulator; otherwise 4
     85 
     86         public:
     87         uint32_t                mNumFramesWritten;
     88         void                    snoopWrite(const void*, size_t);
     89     };
     90 
     91 public:
     92     VideoEditorPlayer(NativeWindowRenderer* renderer);
     93     virtual ~VideoEditorPlayer();
     94 
     95     virtual status_t initCheck();
     96 
     97     virtual status_t setDataSource(
     98             const char *url, const KeyedVector<String8, String8> *headers);
     99 
    100     virtual status_t setDataSource(int fd, int64_t offset, int64_t length);
    101     virtual status_t setVideoSurface(const sp<Surface> &surface);
    102     virtual status_t setVideoSurfaceTexture(const sp<IGraphicBufferProducer> &bufferProducer);
    103     virtual status_t prepare();
    104     virtual status_t prepareAsync();
    105     virtual status_t start();
    106     virtual status_t stop();
    107     virtual status_t pause();
    108     virtual bool isPlaying();
    109     virtual status_t seekTo(int msec);
    110     virtual status_t getCurrentPosition(int *msec);
    111     virtual status_t getDuration(int *msec);
    112     virtual status_t reset();
    113     virtual status_t setLooping(int loop);
    114     virtual player_type playerType();
    115     virtual status_t invoke(const Parcel &request, Parcel *reply);
    116     virtual void setAudioSink(const sp<AudioSink> &audioSink);
    117     virtual void acquireLock();
    118     virtual void releaseLock();
    119     virtual status_t setParameter(int key, const Parcel &request);
    120     virtual status_t getParameter(int key, Parcel *reply);
    121 
    122     virtual status_t getMetadata(
    123                         const media::Metadata::Filter& ids, Parcel *records);
    124 
    125     virtual status_t loadEffectsSettings(
    126                          M4VSS3GPP_EffectSettings* pEffectSettings, int nEffects);
    127 
    128     virtual status_t loadAudioMixSettings(
    129                          M4xVSS_AudioMixingSettings* pAudioMixSettings);
    130 
    131     virtual status_t setAudioMixPCMFileHandle(
    132                          M4OSA_Context pAudioMixPCMFileHandle);
    133 
    134     virtual status_t setAudioMixStoryBoardParam(
    135                          M4OSA_UInt32 x, M4OSA_UInt32 y, M4OSA_UInt32 z);
    136 
    137     virtual status_t setPlaybackBeginTime(uint32_t msec);
    138     virtual status_t setPlaybackEndTime(uint32_t msec);
    139     virtual status_t setStoryboardStartTime(uint32_t msec);
    140     virtual status_t setProgressCallbackInterval(uint32_t cbInterval);
    141 
    142     virtual status_t setMediaRenderingMode(M4xVSS_MediaRendering mode,
    143                           M4VIDEOEDITING_VideoFrameSize outputVideoSize);
    144 
    145     virtual status_t resetJniCallbackTimeStamp();
    146     virtual status_t setImageClipProperties(uint32_t width, uint32_t height);
    147     virtual status_t readFirstVideoFrame();
    148     virtual status_t getLastRenderedTimeMs(uint32_t *lastRenderedTimeMs);
    149 
    150     status_t setAudioPlayer(VideoEditorAudioPlayer *audioPlayer);
    151 private:
    152     PreviewPlayer       *mPlayer;
    153     sp<VeAudioOutput>    mVeAudioSink;
    154 
    155     VideoEditorPlayer(const VideoEditorPlayer &);
    156     VideoEditorPlayer &operator=(const VideoEditorPlayer &);
    157 };
    158 
    159 }  // namespace android
    160 
    161 #endif  // ANDROID_VIDEOEDITOR_PLAYER_H
    162