Symaptic: os/mm/mmplugins/mmfwplugins/src/Plugin/Controller/Video/AviPlayController/avireader.h@bde4ae8d615e

     1 // Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    16 #ifndef AVIREADER_H

    17 #define AVIREADER_H

    20 #include <mmf/server/mmffile.h>

    21 #include <e32std.h>

    22 #include <e32base.h>

    23 #include <mmf/devvideo/devvideoplay.h>

    26 //Observer class for CAviReader

    27 class MAviReaderObserver

    28 	{

    29 public:

    30 	virtual void AudioBufferFilled() = 0;

    31 	virtual void VideoBufferFilled(TVideoInputBuffer* aBuffer) = 0;

    32 	};

    35 //The main class to read from an.avi file.

    36 class CAviReader:public CBase,public MDataSink

    37 	{

    38 public:

    39 	static CAviReader* NewL(CMMFClip& aClip,MAviReaderObserver& aObserver);

    40 	virtual ~CAviReader();

    41 	TTimeIntervalMicroSeconds Duration() const ;

    42 	void SetPositionL(TInt aPosition);

    43 	void ResetL();

    44 	void SetPlayWindowL(TTimeIntervalMicroSeconds aStart,TTimeIntervalMicroSeconds aEnd);

    45 	void FillVideoBufferL(TVideoInputBuffer* aBuffer);

    46 	void FillAudioBufferL(CMMFBuffer* aBuffer);

    47   	void ReadNextFrameL(TUid aMediaType, TInt& aPosition);

    48   	TBool ReadNextFrameStartL(TInt& aStart);

    49   	TBool IsValidBlock(TUint aChunkId);

    50 	TBool IsVideoInputEnd();

    51 	TBool IsAudioInputEnd();

    52 	void ReadComplete();

    53   	void AudioEnabled(TBool& aEnabled);

    54 	void FrameRate(TReal32& aFramesPerSecond);

    55 	void AudioCodec(TFourCC& aCodec);

    56 	TInt SampleRate();

    57 	void VideoMimeType(TDes8& aMimeType);

    58 	void VideoFrameSize(TSize& aSize);

    59 	TInt Channels();

    60 	TInt BitsPerSample();

    61 	TBool IsAudioDataAvailableL(TInt aStartPos);

    63     //MDataSink

    64 	TFourCC SinkDataTypeCode(TMediaId aMediaId);

    65 	void EmptyBufferL(CMMFBuffer* aBuffer, MDataSource* aSupplier, TMediaId aMediaId);

    66 	void BufferFilledL(CMMFBuffer* aBuffer);

    67 	TBool CanCreateSinkBuffer();

    68 	CMMFBuffer* CreateSinkBufferL(TMediaId aMediaId, TBool& aReference);

    69 	void ConstructSinkL( const TDesC8& aInitData);

    70 private:

    72 	//Main Avi Header

    73 	struct TAviMainHeader

    74 		{

    75 		TUint	iMicroSecPerFrame;

    76 		TUint	iMaxBytesPerSec;

    77 		TUint   iPaddingGranularity;

    78 		TUint	iFlags;

    79 		TUint	iTotalFrames;

    80 		TUint	iInitialFrames;

    81 		TUint	iStreams;

    82 		TUint	iSuggestedBufferSize;

    83 		TUint	iWidth;

    84 		TUint	iHeight;

    85 		TUint   iReserved[4];

    86 		} iMainHeader;

    88 	struct TAviStreamHeader	//represents stream header

    89 		{

    90 		TUint	iFccType;

    91 		TUint	iFccHandler;

    92 		TUint	iFlags;

    93 		TUint	iReserved;

    94 		TUint	iInitialFrames;

    95 		TUint	iScale;

    96 		TUint	iRate;

    97 		TUint	iStart;

    98 		TUint	iLength;

    99 		TUint	iSuggestedBufferSize;

   100 		TUint   iQuality;

   101 		TUint	iSampleSize;

   102 		struct

   103 			{

   104 			TInt16 iLeft;

   105 			TInt16 iTop;

   106 			TInt16 iRight;

   107 			TInt16 iBottom;

   108 			}iRcFrame;

   109 		};

   110 	TAviStreamHeader iStreamHeader[2];

   112     struct TPcmWaveFormat

   113 		{

   114 		struct TWaveFormat

   115              {

   116              TUint16  iFormatTag;

   117              TUint16  iNChannels;

   118              TUint  iNSamplesPerSec;

   119              TUint  iNAvgBytesPerSec;

   120              TUint16  iNBlockAlign;

   121              } iWaveFormat;

   122         TUint16 iBitsPerSample;

   123         } iPCMWaveFormat;

   125     //Video Stream Format

   128 	struct TBitmapInfoHeader

   129 		{

   130 		TUint  iBiSize;

   131         TUint   iBiWidth;

   132         TUint   iBiHeight;

   133         TUint16   iBiPlanes;

   134         TUint16   iBiBitCount;

   135 		TUint  iBiCompression;

   136 		TUint  iBiSizeImage;

   137 		TUint   iBiXPelsPerMeter;

   138 		TUint   iBiYPelsPerMeter;

   139 		TUint  iBiClrUsed;

   140 		TUint  iBiClrImportant;

   141 		}iBitmapInfoHeader;

   143 private:

   144 	TInt ReadFormatL();

   145   	void ProcessFormatL();

   146  	TInt FindRiffChunksL();

   147  	CAviReader(CMMFClip& aClip, MAviReaderObserver& aObserver);

   148   	void ConstructL();

   149   	void DoReadL(TInt aReadPosition);

   150   	void SetMediaEOS(TUid aMediaType);

   151 private:

   152 	MAviReaderObserver& iObserver;

   153 	CMMFClip& iClip;

   154 	CMMFDescriptorBuffer* iSourceBuffer;

   155 	CMMFDescriptorBuffer* iAudioBuffer;

   156 	CMMFDescriptorBuffer* iVideoBuffer;

   157 	TInt iNumberOfStreams;

   158 	TBool iAudioEos;

   159 	TBool iVideoEos;

   160 	TInt iSourcePos;

   161 	TInt iAudioPos;

   162 	TInt iVideoPos;

   163 	TUint8* iClipPos;

   164 	TBool iAudioEnabled;

   165 	TVideoInputBuffer* iBufferFromDevVideo;

   166 	CMMFBuffer* iBufferFromDevSound;

   167 	TBool iVideoRequestMade;

   168 	TBool iAudioRequestMade;

   169 	TBool iReadCompleted;

   170 	TBool iReadRequestMade;

   171 	TInt iFileSize;

   172 	TInt iAudioIdx;

   173 	TInt iVideoIdx;

   174 	};

   175 #endif

author	sl@SLION-WIN7.fritz.box
	Fri, 15 Jun 2012 03:10:57 +0200
changeset 0	bde4ae8d615e
permissions	-rw-r--r--