author | Stefan Karlsson <stefan.karlsson@nokia.com> |
Sat, 10 Apr 2010 13:40:32 +0100 | |
branch | CompilerCompatibility |
changeset 8 | 1c7b0f9777f7 |
parent 0 | 951a5db380a0 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2010 Ixonos Plc. |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of the "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - Initial contribution |
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* |
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* Contributors: |
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* Ixonos Plc |
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* |
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* Description: |
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* A header file defining the AVC editing API. |
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* |
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* |
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*/ |
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#ifndef VEDAVCEDIT_H |
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#define VEDAVCEDIT_H |
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#include <e32base.h> |
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/** |
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* CVedAVCEdit abstract base class for AVC editing class |
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* |
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* @lib vedAVCEdit |
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* @since |
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*/ |
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class CVedAVCEdit : public CBase |
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{ |
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public: // Constants |
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|
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public: // Constructors and destructor |
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/** |
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* Two-phased constructor. |
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* |
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*/ |
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IMPORT_C static CVedAVCEdit* NewL(); |
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/** |
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* Destructor. |
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*/ |
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virtual ~CVedAVCEdit(); |
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public: // New functions |
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/* |
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* Add MDF specific NAL headers to input AVC frame |
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* |
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* @param aBuf Input/output buffer |
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* @param aFrameLen Input/output frame length |
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* @param aDecInfoSize Decoder specific info size |
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* @param aFirstFrame ETrue for first frame in sequence |
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*/ |
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virtual void ProcessAVCBitStreamL(TDes8& aBuf, TInt& aFrameLen, TInt aDecInfoSize, TBool aFirstFrame) = 0; |
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/* |
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* Calculate default value for no. of buffered frames according to |
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* H.264 spec Annex A |
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* |
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* @param aLevel AVC level |
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* @param aResolution Video resolution |
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*/ |
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virtual TInt GetMaxAVCFrameBuffering(TInt aLevel, TSize aResolution) = 0; |
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/* |
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* Get input bitstream level from SPS. Note: SPS Nal unit must be at the |
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* beginning of the input buffer |
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* |
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* @param aBuf Input buffer containing SPS |
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* @param aLevel Output: Baseline profile level |
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*/ |
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virtual TInt GetLevel(TDesC8& aBuf, TInt& aLevel) = 0; |
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/* |
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* Get input bitstream video resolution from SPS. Note: SPS Nal unit must |
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* be at the beginning of the input buffer |
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* |
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* @param aBuf Input buffer containing SPS |
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* @param aResolution Output: Resolution |
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*/ |
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virtual TInt GetResolution(TDesC8& aBuf, TSize& aResolution) = 0; |
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#ifdef VIDEOEDITORENGINE_AVC_EDITING |
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/* |
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* Convert AVC specific decoder config info to AVCDecoderConfigurationRecord -format |
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* |
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* @param aSrcBuf Source buffer containing SPS/PPS NAL units in AVC MDF buffer format |
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* @param aDstBuf Destination buffer for AVCDecoderConfigurationRecord |
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*/ |
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virtual void ConvertAVCHeaderL(TDesC8& aSrcBuf, TDes8& aDstBuf ) = 0; |
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/* |
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* Save SPS/PPS NAL units from AVCDecoderConfigurationRecord |
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* for later use |
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* |
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* @param aBuf Input buffer containing AVCDecoderConfigurationRecord |
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*/ |
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virtual void SaveAVCDecoderConfigurationRecordL(TDes8& aBuf, TBool aFromEncoder) = 0; |
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/* |
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* Update slice header information: frame number and PPS id |
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* |
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* @param aBuf Buffer containing input frame |
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* @param aContainsDCR ETrue if AVC decoder config. record is included |
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* @param aFromEncoder ETrue if frame comes from the encoder |
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*/ |
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virtual TInt ParseFrame(HBufC8*& aBuf, TBool aContainsDCR, TBool aFromEncoder) = 0; |
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/* |
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* Constructs AVCDecoderConfigurationRecord for the whole sequence, taking |
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* into account all input DCR's |
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* |
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* @param aDstBuf Destination buffer for AVCDecoderConfigurationRecord |
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* @param aLevel Level output sequence |
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*/ |
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virtual void ConstructAVCDecoderConfigurationRecordL( TDes8& aDstBuf ) = 0; |
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/* |
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* Set length of NAL size field of output sequence |
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* |
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* @param aSize Length of size field in bytes |
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*/ |
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virtual void SetNALLengthSize( TInt aSize ) = 0; |
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/* |
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* Set output level for constructing AVCDecoderConfigurationRecord |
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* |
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* @param aLevel Output level |
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*/ |
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virtual void SetOutputLevel(TInt aLevel) = 0; |
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/* |
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* Check if encoding is required until the next IDR unit |
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* |
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*/ |
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virtual TBool EncodeUntilIDR() = 0; |
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/* |
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* Check if NAL unit is an IDR NAL |
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* |
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* @param aNalBuf buffer containing NAL unit |
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*/ |
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virtual TBool IsNALUnitIDR( TDes8& aNalBuf ) = 0; |
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/* |
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* Store PPS id from the current slice |
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* |
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* @param aNalBuf buffer containing NAL unit |
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*/ |
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virtual void StoreCurrentPPSId( TDes8& aNalBuf ) = 0; |
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/* |
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* Generate a not coded frame |
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* |
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* @param aNalBuf buffer containing NAL unit |
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*/ |
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virtual TInt GenerateNotCodedFrame( TDes8& aNalBuf, TUint aFrameNumber ) = 0; |
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/* |
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* Modify the frame number of the NAL unit |
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* |
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* @param aNalBuf buffer containing NAL unit |
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*/ |
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virtual void ModifyFrameNumber( TDes8& aNalBuf, TUint aFrameNumber ) = 0; |
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#endif |
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}; |
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#endif |
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// End of File |