Symaptic: os/mm/mmhais/videohai/devvideo/inc/devvideobase.h@260cb5ec6c19 (annotated)

sl@0	1	// Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0	2	// All rights reserved.
sl@0	3	// This component and the accompanying materials are made available
sl@0	4	// under the terms of "Eclipse Public License v1.0"
sl@0	5	// which accompanies this distribution, and is available
sl@0	6	// at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0	7	//
sl@0	8	// Initial Contributors:
sl@0	9	// Nokia Corporation - initial contribution.
sl@0	10	//
sl@0	11	// Contributors:
sl@0	12	//
sl@0	13	// Description:
sl@0	14	//
sl@0	15
sl@0	16	#ifndef __DEVVIDEOBASE_H__
sl@0	17	#define __DEVVIDEOBASE_H__
sl@0	18
sl@0	19	#include <e32base.h>
sl@0	20	#include <w32std.h>
sl@0	21	#include <mmf/devvideo/devvideoconstants.h>
sl@0	22	#include <ecom/ecom.h>
sl@0	23	#ifndef SYMBIAN_ENABLE_SPLIT_HEADERS
sl@0	24	#include <mmf/devvideo/devvideohwdeviceadaptersetup.h>
sl@0	25	#endif
sl@0	26
sl@0	27
sl@0	28	/**
sl@0	29	Panic utility function
sl@0	30	@publishedAll
sl@0	31	*/
sl@0	32	LOCAL_C void DevVideoPanic(TInt aReason)
sl@0	33	{
sl@0	34	User::Panic(KDevVideoPanicCategory, aReason);
sl@0	35	}
sl@0	36
sl@0	37
sl@0	38	/**
sl@0	39	A hardware device ID that identifies an instantiated video hardware device.
sl@0	40	Used in the playback and recording APIs to identify the component being controlled.
sl@0	41	@publishedAll
sl@0	42	@released
sl@0	43	*/
sl@0	44	typedef TInt THwDeviceId;
sl@0	45
sl@0	46
sl@0	47	/**
sl@0	48	Defines a supported scale factor for a scaling pre-processor or post-processor.
sl@0	49
sl@0	50	The scale factor is defined as iScaleNum/iScaleDenom,
sl@0	51	where the values are positive integers and relatively prime.
sl@0	52	@publishedAll
sl@0	53	@released
sl@0	54	*/
sl@0	55	class TScaleFactor
sl@0	56	{
sl@0	57	public:
sl@0	58	/*Scale factor numerator. Non-zero./
sl@0	59	TUint iScaleNum;
sl@0	60	/*Scale factor denominator. Non-zero./
sl@0	61	TUint iScaleDenom;
sl@0	62	};
sl@0	63
sl@0	64
sl@0	65	/**
sl@0	66	A custom YUV/RGB conversion matrix. The same matrix structure is used for both conversion directions.
sl@0	67	@publishedAll
sl@0	68	@released
sl@0	69	*/
sl@0	70	class TYuvConversionMatrix
sl@0	71	{
sl@0	72	public:
sl@0	73	/**
sl@0	74	Post-multiplication offset, a three-item vector.
sl@0	75	*/
sl@0	76	TReal iPostOffset[3];
sl@0	77
sl@0	78	/**
sl@0	79	Multiplication matrix, a 3x3 matrix. iMatrix[3*i+j] contains the j:th item on the i:th row of the matrix.
sl@0	80	*/
sl@0	81	TReal iMatrix[9];
sl@0	82
sl@0	83	/**
sl@0	84	Pre-multiplication offset, a three-item vector.
sl@0	85	*/
sl@0	86	TReal iPreOffset[3];
sl@0	87	};
sl@0	88
sl@0	89
sl@0	90	/**
sl@0	91	YUV (YCbCr) uncompressed image data format.
sl@0	92	@publishedAll
sl@0	93	@released
sl@0	94	*/
sl@0	95	class TYuvFormat
sl@0	96	{
sl@0	97	public:
sl@0	98	/**
sl@0	99	The YUV/RGB conversion coefficients to use
sl@0	100	*/
sl@0	101	TYuvCoefficients iCoefficients;
sl@0	102
sl@0	103	/**
sl@0	104	Luminance/chrominance sampling pattern.
sl@0	105	*/
sl@0	106	TYuvSamplingPattern iPattern;
sl@0	107
sl@0	108	/**
sl@0	109	Data layout, specifies whether the data is stored in a planar or interleaved mode.
sl@0	110	*/
sl@0	111	TYuvDataLayout iDataLayout;
sl@0	112
sl@0	113	/**
sl@0	114	Custom YUV to RGB conversion matrix to use.
sl@0	115	Valid only if custom conversion matrix is used (iCoefficients is ECustomYuvMatrix).
sl@0	116	*/
sl@0	117	TYuvConversionMatrix* iYuv2RgbMatrix;
sl@0	118
sl@0	119	/**
sl@0	120	Custom RGB to YUV conversion matrix to use.
sl@0	121	Valid only if custom conversion matrix is used (iCoefficients is ECustomYuvMatrix).
sl@0	122	*/
sl@0	123	TYuvConversionMatrix* iRgb2YuvMatrix;
sl@0	124
sl@0	125	/**
sl@0	126	Pixel aspect ratio numerator.
sl@0	127	*/
sl@0	128	TUint iAspectRatioNum;
sl@0	129
sl@0	130	/**
sl@0	131	Pixel aspect ratio denominator.
sl@0	132	The aspect ratio is defined as iAspectRatioNum/iAspectRatioDenom,
sl@0	133	where the values are positive integers and relatively prime.
sl@0	134	*/
sl@0	135	TUint iAspectRatioDenom;
sl@0	136
sl@0	137	/**
sl@0	138	Tests whether this TYuvFormat object is the same as aOther.
sl@0	139	@param "aOther" "The object to compare."
sl@0	140	@return "ETrue if they are the same, EFalse if not."
sl@0	141	*/
sl@0	142	inline TBool operator==(const TYuvFormat& aOther) const;
sl@0	143	};
sl@0	144
sl@0	145	/**
sl@0	146	Defines an uncompressed video format.
sl@0	147	This structure is mainly just a combination of YUV and RGB formats, defined to simplify the rest of the API.
sl@0	148	@publishedAll
sl@0	149	@released
sl@0	150	*/
sl@0	151	class TUncompressedVideoFormat
sl@0	152	{
sl@0	153	public:
sl@0	154	/**
sl@0	155	The image data format. The validity of the rest of the fields depends on the data format used.
sl@0	156	*/
sl@0	157	TImageDataFormat iDataFormat;
sl@0	158	union
sl@0	159	{
sl@0	160	/**
sl@0	161	YUV picture format details, valid if iDataFormat is EYuvRawData.
sl@0	162	*/
sl@0	163	TYuvFormat iYuvFormat;
sl@0	164
sl@0	165	/**
sl@0	166	RGB picture format details, valid if iDataFormat is ERgbRawData or ERgbFbsBitmap.
sl@0	167	*/
sl@0	168	TRgbFormat iRgbFormat;
sl@0	169	};
sl@0	170
sl@0	171	/**
sl@0	172	Tests whether this TUncompressedVideoFormat object is the same as aOther.
sl@0	173	@param "aOther" "The object to compare."
sl@0	174	@return "ETrue if they are the same, EFalse if not."
sl@0	175	*/
sl@0	176	inline TBool operator==(const TUncompressedVideoFormat& aOther) const;
sl@0	177
sl@0	178	/**
sl@0	179	Sets this object equal to aOther.
sl@0	180	@param "aOther" "The object to clone."
sl@0	181	*/
sl@0	182	inline void operator=(const TUncompressedVideoFormat& aOther);
sl@0	183	};
sl@0	184
sl@0	185
sl@0	186	/**
sl@0	187	Uncompressed picture data for one video picture.
sl@0	188	@publishedAll
sl@0	189	@released
sl@0	190	*/
sl@0	191	class TPictureData
sl@0	192	{
sl@0	193	public:
sl@0	194	/**
sl@0	195	The image data format. The validity of the rest of the fields depends on the data format used.
sl@0	196	*/
sl@0	197	TImageDataFormat iDataFormat;
sl@0	198
sl@0	199	/**
sl@0	200	Image data size in pixels. In decoder output pictures the actual active picture area may be smaller,
sl@0	201	this is indicated using TVideoPicture.iCropRect.
sl@0	202	*/
sl@0	203	TSize iDataSize;
sl@0	204
sl@0	205	union
sl@0	206	{
sl@0	207	/**
sl@0	208	Pointer to raw image data. Valid if iDataFormat is ERgbRawData or iYuvRawData.
sl@0	209	The data layout depends on the format used.
sl@0	210	*/
sl@0	211	TPtr8* iRawData;
sl@0	212
sl@0	213	/**
sl@0	214	Pointer to an RGB bitmap. Valid if iDataFormat is ERgbFbsBitmap.
sl@0	215	*/
sl@0	216	CFbsBitmap* iRgbBitmap;
sl@0	217
sl@0	218	/**
sl@0	219	Buffer number of current buffer for composition that is used when submitting a surface update. Valid if iDataFormat is set to ESurfaceBuffer
sl@0	220	*/
sl@0	221	TInt iSurfaceBufNum;
sl@0	222	};
sl@0	223	};
sl@0	224
sl@0	225	/**
sl@0	226	Header information for one decoded picture.
sl@0	227	The header information is returned alongside with decoded pictures,
sl@0	228	or it can be read separately when DevVideoPlay is being initialized.
sl@0	229
sl@0	230	@publishedAll
sl@0	231	@released
sl@0	232	*/
sl@0	233	class TVideoPictureHeader
sl@0	234	{
sl@0	235	public:
sl@0	236	/**
sl@0	237	*/
sl@0	238	enum THeaderOptions
sl@0	239	{
sl@0	240	/** Decoding timestamp is valid
sl@0	241	*/
sl@0	242	EDecodingTimestamp = 0x00000001,
sl@0	243	/** Presentation timestamp is valid
sl@0	244	*/
sl@0	245	EPresentationTimestamp = 0x00000002,
sl@0	246	/** Pre-decoder buffersize is valid
sl@0	247	*/
sl@0	248	EPreDecoderBufferSize = 0x00000004,
sl@0	249	/** Post-decoder buffersize is valid
sl@0	250	*/
sl@0	251	EPostDecoderBufferSize = 0x00000008,
sl@0	252	/** Picture number field is valid
sl@0	253	*/
sl@0	254	EPictureNumber = 0x00000010,
sl@0	255	/** Layered coding is used and the layer number field is valid
sl@0	256	*/
sl@0	257	ELayeredCoding = 0x00000020,
sl@0	258	/** Supplemental data is available
sl@0	259	*/
sl@0	260	ESupplementalData = 0x00000040,
sl@0	261	/** Random access buffering period is valid
sl@0	262	*/
sl@0	263	ERandomAccessBufferingPeriod = 0x00000080,
sl@0	264	/** Random access buffer occupancy is valid
sl@0	265	*/
sl@0	266	ERandomAccessBufferOccupancy = 0x00000100
sl@0	267	};
sl@0	268
sl@0	269	/**
sl@0	270	Header options. The value is a bitfield combined from values from THeaderOptions.
sl@0	271	*/
sl@0	272	TUint32 iOptions;
sl@0	273
sl@0	274	/**
sl@0	275	Video codec profile used. Use -1 if not applicable or not defined.
sl@0	276	*/
sl@0	277	TInt iProfile;
sl@0	278
sl@0	279	/**
sl@0	280	Video codec level. Use -1 if not applicable or not defined.
sl@0	281	*/
sl@0	282	TInt iLevel;
sl@0	283
sl@0	284	/**
sl@0	285	Video codec version. Use -1 if not applicable or not defined.
sl@0	286	*/
sl@0	287	TInt iVersion;
sl@0	288
sl@0	289	/**
sl@0	290	Pointer to a descriptor that contains optional codec-specific features. Set to NULL if not used.
sl@0	291	The format of the data is codec-specific. The pointer and descriptor data are valid as long as
sl@0	292	the header information structure is valid.
sl@0	293	*/
sl@0	294	const TDesC8* iOptional;
sl@0	295
sl@0	296	/**
sl@0	297	Image size in memory, in pixels. May be larger than the displayed picture.
sl@0	298	*/
sl@0	299	TSize iSizeInMemory;
sl@0	300
sl@0	301	/**
sl@0	302	The portion of the full image to display.
sl@0	303	*/
sl@0	304	TRect iDisplayedRect;
sl@0	305
sl@0	306	/**
sl@0	307	Picture presentation timestamp. Valid only if EPresentationTimestamp is set in the options.
sl@0	308	The clock frequency is stored in the timestamp structure.
sl@0	309	*/
sl@0	310	TTimeIntervalMicroSeconds iPresentationTimestamp;
sl@0	311
sl@0	312	/**
sl@0	313	Picture decoding timestamp. Valid only if EDecodingTimestamp is set in the options.
sl@0	314	*/
sl@0	315	TTimeIntervalMicroSeconds iDecodingTimestamp;
sl@0	316
sl@0	317	/**
sl@0	318	Expected pre-decoder buffer size in bytes. Valid only if EPreDecoderBufferSize is set in the options.
sl@0	319	*/
sl@0	320	TUint iPreDecoderBufferSize;
sl@0	321
sl@0	322	/**
sl@0	323	Expected post-decoder buffer size in bytes. Valid only if EPostDecoderBufferSize is set in the options.
sl@0	324	It is assumed that a frame buffer to be displayed is returned before the decoding of the next frame
sl@0	325	is started. If this is not the case, a larger post-decoder buffer may actually be needed.
sl@0	326	*/
sl@0	327	TUint iPostDecoderBufferSize;
sl@0	328
sl@0	329	/**
sl@0	330	Picture number, valid only if EPictureNumber is set in the options.
sl@0	331	This field is used to indicate one of the following: picture number or long-term picture index for H.263,
sl@0	332	vop_id for MPEG-4 Visual, picture number or long-term picture number for AVC.
sl@0	333	*/
sl@0	334	TUint iPictureNumber;
sl@0	335
sl@0	336	/**
sl@0	337	Picture layer number if layered coding is used, valid only if ELayeredCoding is set in the options.
sl@0	338	Layers are numbered [0…n-1], where n is the number of layers available. The first layer (layer zero)
sl@0	339	is the base layer, it can be decoded independently from the other layers, and it has the lowest total bitrate.
sl@0	340	*/
sl@0	341	TUint iPictureLayer;
sl@0	342
sl@0	343	/**
sl@0	344	Picture supplemental data, valid only if ESupplementalData is set in the options.
sl@0	345	The pointer and descriptor data are valid as long as the header information structure is valid.
sl@0	346	*/
sl@0	347	const TDesC8* iSupplementalData;
sl@0	348
sl@0	349	/**
sl@0	350	True if the picture is a random-accessible picture.
sl@0	351	*/
sl@0	352	TBool iIsRandomAccessible;
sl@0	353
sl@0	354	/**
sl@0	355	The expected initial pre-decoder buffering period before starting the playback from this picture.
sl@0	356	Valid only if this picture is randomly accessible (iIsRandomAccessible is true) and
sl@0	357	ERandomAccessBufferingPeriod is set in the options. MPEG-2 and H.264 \| MPEG-4 AVC use this value.
sl@0	358	*/
sl@0	359	TTimeIntervalMicroSeconds32 iRandomAccessBufferingPeriod;
sl@0	360
sl@0	361	/**
sl@0	362	The expected initial pre-decoder buffer occupancy in bytes before starting the playback
sl@0	363	from this picture. Valid if this picture is randomly accessible (iIsRandomAccessible is true) and
sl@0	364	ERandomAccessBufferOccupancy is set in the options. MPEG-4 Visual uses this value.
sl@0	365	*/
sl@0	366	TUint iRandomAccessBufferOccupancy;
sl@0	367	};
sl@0	368
sl@0	369
sl@0	370
sl@0	371	/**
sl@0	372	One uncompressed video picture. Used for both decoded picture output as well as uncompressed picture input.
sl@0	373
sl@0	374	@publishedAll
sl@0	375	@released
sl@0	376	*/
sl@0	377	class TVideoPicture
sl@0	378	{
sl@0	379	public:
sl@0	380	/**
sl@0	381	*/
sl@0	382	enum TVideoPictureOptions
sl@0	383	{
sl@0	384	/** The timestamp field is valid.
sl@0	385	*/
sl@0	386	ETimestamp = 0x00000001,
sl@0	387	/** The crop rectangle field is valid.
sl@0	388	*/
sl@0	389	ECropRect = 0x00000002,
sl@0	390	/** Picture header information is present.
sl@0	391	*/
sl@0	392	EHeader = 0x00000004,
sl@0	393	/** The layer bit count targets field is valid.
sl@0	394	*/
sl@0	395	EBitTargets = 0x00000008,
sl@0	396	/** Set in encoder input to request an instantaneous decoder refresh.
sl@0	397	As a response, the encoder should code an intra frame and no consecutive
sl@0	398	frame should refer to any frame before the encoded intra frame (in coding order).
sl@0	399	*/
sl@0	400	EReqInstantRefresh = 0x00000010,
sl@0	401	/** Set in encoder input to indicate a scene cut in the picture stream.
sl@0	402	*/
sl@0	403	ESceneCut = 0x00000020,
sl@0	404	/** Set if a picture effect is in use and the picture effect field is valid.
sl@0	405	*/
sl@0	406	EPictureEffect = 0x00000040,
sl@0	407	/** Set if picture effect parameters are valid.
sl@0	408	*/
sl@0	409	EEffectParameters = 0x00000080,
sl@0	410	/** Content protected pictures cannot be displayed on unprotected
sl@0	411	external displays such as TV-out.
sl@0	412	*/
sl@0	413	EContentProtected = 0x00000100
sl@0	414	};
sl@0	415
sl@0	416	/**
sl@0	417	The picture data. The picture data, including all pointers, must remain valid until
sl@0	418	the picture has been returned to its originator.
sl@0	419	*/
sl@0	420	TPictureData iData;
sl@0	421
sl@0	422	/**
sl@0	423	Picture options. The value is a bitfield combined from values from TVideoPictureOptions.
sl@0	424	*/
sl@0	425	TUint32 iOptions;
sl@0	426
sl@0	427	/**
sl@0	428	Picture timestamp. Valid if ETimestamp is set in the options.
sl@0	429	Used for presentation timestamps in video playback and capture timestamps in uncompressed video
sl@0	430	input for recording. If the timestamp is not specified for decoded video input for playback,
sl@0	431	the picture is displayed immediately. For decoded video output in playback and uncompressed
sl@0	432	video input for recording, the timestamp must always be set.
sl@0	433	*/
sl@0	434	TTimeIntervalMicroSeconds iTimestamp;
sl@0	435
sl@0	436	/**
sl@0	437	Pan-scan cropping rectangle. Defines the area of the picture used for further processing.
sl@0	438	Only used for decoded video output.
sl@0	439	*/
sl@0	440	TRect iCropRect;
sl@0	441
sl@0	442	/**
sl@0	443	Picture header information. Valid if EHeader is set in the options.
sl@0	444	Normally this field is only used in decoded pictures returned from the playback API.
sl@0	445	In that case the header info pointer is valid until the picture is returned to the API.
sl@0	446	*/
sl@0	447	TVideoPictureHeader* iHeader;
sl@0	448
sl@0	449	/**
sl@0	450	The target number of bits for each bit-rate scalability layer, valid when EBitTargets is set in the options.
sl@0	451	Used in video encoding when the caller controls the bit-rate for each picture separately.
sl@0	452	The field points to a table containing the target number of bits to use for each layer when
sl@0	453	encoding this picture, starting from the lowest layer. The bit count for an enhancement layer
sl@0	454	includes all lower layers. For example, if the client uses two layers, and reserves 1.5 kilobits
sl@0	455	for the base layer and three kilobits for the whole picture, this field is set to {1500, 3000}.
sl@0	456	*/
sl@0	457	RArray<TUint>* iLayerBitRates;
sl@0	458
sl@0	459	/**
sl@0	460	The picture effect in use when capturing this picture, valid when EPictureEffect is set in the options.
sl@0	461	This information can be used when encoding the picture. Note that setting a picture effect does not
sl@0	462	imply that the encoder should modify the picture data based on the effect. Instead, it can be used as
sl@0	463	an encoding hint. For example, fade to black implies that the global picture brightness has been decreased,
sl@0	464	and this knowledge can be used to aid motion prediction.
sl@0	465	@see TPictureEffects
sl@0	466	*/
sl@0	467	TPictureEffect iEffect;
sl@0	468
sl@0	469	/**
sl@0	470	Picture effect parameter for fade to/from black, valid when EEffectParameters is set in the options
sl@0	471	and iEffect is EEffectFadeFromBlack or EEffectFadeToBlack. The value range is [0…65536], with zero
sl@0	472	indicating the picture is black and 65536 indicating that the lightness of the picture is unchanged.
sl@0	473	If the parameter is not given, the caller is unaware of the proper value or the value fluctuates spatially.
sl@0	474	*/
sl@0	475	TUint iFadeParam;
sl@0	476
sl@0	477	/**
sl@0	478	A pointer for free-form user data. The pointer is set by the module that created the buffer, and is
sl@0	479	usually used for memory management purposes.
sl@0	480	*/
sl@0	481	TAny* iUser;
sl@0	482
sl@0	483	/**
sl@0	484	A queue link used internally by the MSL video components.
sl@0	485	*/
sl@0	486	TDblQueLink iLink;
sl@0	487	};
sl@0	488
sl@0	489	/**
sl@0	490	Identifies a video picture in feedback messages.
sl@0	491
sl@0	492	@publishedAll
sl@0	493	@released
sl@0	494	*/
sl@0	495	class TPictureId
sl@0	496	{
sl@0	497	public:
sl@0	498	enum TPictureIdType
sl@0	499	{
sl@0	500	/** Unidentified picture. */
sl@0	501	ENone,
sl@0	502	/** The picture is identified using its temporal reference. */
sl@0	503	ETemporalReference,
sl@0	504	/** The picture is identified using its picture number. Picture numbers are used in H.263 annex U and H.264 \| MPEG-4 AVC, for example.. */
sl@0	505	EPictureNumber
sl@0	506	};
sl@0	507
sl@0	508	/** Picture identified type. */
sl@0	509	TPictureIdType iIdType;
sl@0	510
sl@0	511	/** The picture identifier. The interpretation of this field depends on the value iIdType */
sl@0	512	TUint32 iId;
sl@0	513	};
sl@0	514
sl@0	515
sl@0	516	/**
sl@0	517	Defines a compressed video format. The format is identified by its MIME type, which may include
sl@0	518	parameters that describe the used format profile and level. The MIME type used for H.263
sl@0	519	is video/H263-2000, specified in TS 26.234, and the type for MPEG-4 is video/MP4V-ES, specified in RFC 3016.
sl@0	520
sl@0	521	@publishedAll
sl@0	522	@released
sl@0	523	*/
sl@0	524	class CCompressedVideoFormat : public CBase
sl@0	525	{
sl@0	526	public:
sl@0	527	/**
sl@0	528	Static factory function for creating new CCompressedVideoFormat objects.
sl@0	529
sl@0	530	@param "aMimeType" "Video codec MIME type, including optional parameters for profile,
sl@0	531	level and version information. The CCompressedVideoFormat object creates
sl@0	532	and owns a copy of this buffer and takes care of deallocation."
sl@0	533
sl@0	534	@param "aOptionalData" "Reference to a descriptor that contains optional codec-specific data.
sl@0	535	Set to KNullDesC8 if not used. [The format of the data is codec-specific, typically
sl@0	536	a package buffer containing a data structure may be used. The pointer lifetime
sl@0	537	and validity requirements are specified with each method that uses this structure."
sl@0	538
sl@0	539	@return "Pointer to a fully constructed CCompressedVideoFormat object."
sl@0	540	@leave "This method may leave with one of the system-wide error codes."
sl@0	541	*/
sl@0	542	IMPORT_C static CCompressedVideoFormat* NewL(const TDesC8& aMimeType, const TDesC8& aOptionalData = KNullDesC8);
sl@0	543
sl@0	544	/**
sl@0	545	Static factory function for creating a copy of an existing CCompressedVideoFormat object.
sl@0	546
sl@0	547	@param "aFormat" "The CCompressedVideoFormat object to copy."
sl@0	548
sl@0	549	@return Pointer to a fully constructed CCompressedVideoFormat object.
sl@0	550	@leave This method may leave with one of the system-wide error codes.
sl@0	551	*/
sl@0	552	IMPORT_C static CCompressedVideoFormat* NewL(const CCompressedVideoFormat& aFormat);
sl@0	553
sl@0	554	/**
sl@0	555	Virtual destructor. Destroys iMimeType.
sl@0	556	*/
sl@0	557	IMPORT_C virtual ~CCompressedVideoFormat();
sl@0	558
sl@0	559	/**
sl@0	560	Returns the video codec MIME type.
sl@0	561
sl@0	562	@return "Reference to a descriptor that contains the video codec MIME type."
sl@0	563	*/
sl@0	564	IMPORT_C const TDesC8& MimeType() const;
sl@0	565
sl@0	566	/**
sl@0	567	Returns the optional data.
sl@0	568
sl@0	569	@return "Reference to a descriptor that contains optional codec-specific data.
sl@0	570	Zero length if not used. The format of the data is codec-specific, typically a package buffer
sl@0	571	containing a data structure may be used."
sl@0	572	*/
sl@0	573	IMPORT_C const TDesC8& OptionalData() const;
sl@0	574
sl@0	575	/**
sl@0	576	Tests whether this CCompressedVideoFormat is identical to aOther or not.
sl@0	577	@return "ETrue if the two objects are identical, EFalse if not."
sl@0	578	*/
sl@0	579	IMPORT_C TBool operator==(const CCompressedVideoFormat& aOther) const;
sl@0	580	protected:
sl@0	581	/**
sl@0	582	@internalTechnology
sl@0	583	*/
sl@0	584	CCompressedVideoFormat();
sl@0	585
sl@0	586	/**
sl@0	587	@internalTechnology
sl@0	588	*/
sl@0	589	void ConstructL(const TDesC8& aMimeType, const TDesC8& aOptionalData);
sl@0	590	private:
sl@0	591	HBufC8* iMimeType;
sl@0	592	HBufC8* iOptionalData;
sl@0	593	};
sl@0	594
sl@0	595
sl@0	596	/**
sl@0	597	Specifies the HRD/VBV parameters used when 3GPP TS 26.234 annex G HRD/VBV settings are used (EHrdVbv3GPP).
sl@0	598	See TS 26.234 Release 5 for details.
sl@0	599	@publishedAll
sl@0	600	@released
sl@0	601	*/
sl@0	602	class T3gppHrdVbvParams
sl@0	603	{
sl@0	604	public:
sl@0	605	/** Initial pre-decoder buffering period. */
sl@0	606	TTimeIntervalMicroSeconds iInitialPreDecoderBufferPeriod;
sl@0	607
sl@0	608	/** Initial post-decoder buffering period. */
sl@0	609	TTimeIntervalMicroSeconds iInitialPostDecoderBufferPeriod;
sl@0	610
sl@0	611	/** Hypothetical pre-decoder buffer size, in bytes. */
sl@0	612	TUint iPreDecoderBufferSize;
sl@0	613
sl@0	614	/** Peak decoding byte rate. By default, the peak decoding byte rate is
sl@0	615	defined according to the video coding profile and level in use. */
sl@0	616	TUint iPeakDecodingByteRate;
sl@0	617
sl@0	618	/** Decoding macroblock rate. The default decoding macroblock rate is defined
sl@0	619	according to the video coding profile and level in use. */
sl@0	620	TUint iDecodingMacroblockRate;
sl@0	621	};
sl@0	622
sl@0	623
sl@0	624	/**
sl@0	625	YUV to RGB post-processing options.
sl@0	626	@publishedAll
sl@0	627	@released
sl@0	628	*/
sl@0	629	class TYuvToRgbOptions
sl@0	630	{
sl@0	631	public:
sl@0	632	/**
sl@0	633	Lightness setting. The value range is [-100 … 100], with -100 corresponding to minimum setting,
sl@0	634	100 to maximum setting, and 0 to no change in lightness. The actual lightness change formula
sl@0	635	used is hardware device specific.
sl@0	636	*/
sl@0	637	TInt iLightness;
sl@0	638
sl@0	639	/**
sl@0	640	Saturation setting. The value range is [-100 … 100], with -100 corresponding to minimum setting,
sl@0	641	100 to maximum setting, and 0 to no change in saturation. The actual saturation formula used
sl@0	642	is hardware device specific.
sl@0	643	*/
sl@0	644	TInt iSaturation;
sl@0	645
sl@0	646	/**
sl@0	647	Contrast setting. The value range is [-100 … 100], with -100 corresponding to minimum setting,
sl@0	648	100 to maximum setting, and 0 to no change in contrast. The actual contrast change formula
sl@0	649	used is hardware device specific.
sl@0	650	*/
sl@0	651	TInt iContrast;
sl@0	652
sl@0	653	/**
sl@0	654	Gamma setting for conversion. Ignored if the converter does not support gamma correction.
sl@0	655	The gamma correction is defined as x' = x^(1/g), where x' refers to the corrected value,
sl@0	656	x to the original input value and g to this field. Gamma correction is performed on the RGB values.
sl@0	657	Set gamma to 1.0 to disable gamma correction.
sl@0	658	*/
sl@0	659	TReal iGamma;
sl@0	660
sl@0	661	/**
sl@0	662	The dithering type to use.
sl@0	663	*/
sl@0	664	TDitherType iDitherType;
sl@0	665	};
sl@0	666
sl@0	667	/**
sl@0	668	Pre-processing options for color enhancement.
sl@0	669	The value ranges have been chosen to match those in the Onboard Camera API.
sl@0	670	@publishedAll
sl@0	671	@released
sl@0	672	*/
sl@0	673	class TColorEnhancementOptions
sl@0	674	{
sl@0	675	public:
sl@0	676	/**
sl@0	677	Lightness setting. The value range is [-100 … 100], with -100 corresponding to minimum setting,
sl@0	678	100 to maximum setting, and 0 to no change in lightness.
sl@0	679	*/
sl@0	680	TInt iLightness;
sl@0	681
sl@0	682	/**
sl@0	683	Saturation setting. The value range is [-100 … 100], with -100 corresponding to minimum setting,
sl@0	684	100 to maximum setting, and 0 to no change in saturation.
sl@0	685	*/
sl@0	686	TInt iSaturation;
sl@0	687
sl@0	688	/**
sl@0	689	Contrast setting. The value range is [-100 … 100], with -100 corresponding to minimum setting,
sl@0	690	100 to maximum setting, and 0 to no change in contrast.
sl@0	691	*/
sl@0	692	TInt iContrast;
sl@0	693	};
sl@0	694
sl@0	695	/**
sl@0	696	Describes the YUV to RGB color conversion capabilities of a post-processor.
sl@0	697	@publishedAll
sl@0	698	@released
sl@0	699	*/
sl@0	700	class TYuvToRgbCapabilities
sl@0	701	{
sl@0	702	public:
sl@0	703	/**
sl@0	704	Input YUV sampling patterns supported, a bitfield combination (bitwise OR) of TYuvSamplingPattern.
sl@0	705	*/
sl@0	706	TUint32 iSamplingPatterns;
sl@0	707
sl@0	708	/**
sl@0	709	YUV to RGB conversion coefficients supported, a bitfield combination of TYuvCoefficients.
sl@0	710	*/
sl@0	711	TUint32 iCoefficients;
sl@0	712
sl@0	713	/**
sl@0	714	Output RGB formats supported, a bitfield combination of TRgbFormat.
sl@0	715	*/
sl@0	716	TUint32 iRgbFormats;
sl@0	717
sl@0	718	/**
sl@0	719	True if lightness control is supported.
sl@0	720	*/
sl@0	721	TBool iLightnessControl;
sl@0	722
sl@0	723	/**
sl@0	724	True if saturation control is supported.
sl@0	725	*/
sl@0	726	TBool iSaturationControl;
sl@0	727
sl@0	728	/**
sl@0	729	True if contrast control is supported.
sl@0	730	*/
sl@0	731	TBool iContrastControl;
sl@0	732
sl@0	733	/**
sl@0	734	True if gamma correction is supported.
sl@0	735	*/
sl@0	736	TBool iGammaCorrection;
sl@0	737
sl@0	738	/**
sl@0	739	Dithering types supported, a bitfield combination of TDitherType.
sl@0	740	*/
sl@0	741	TUint32 iDitherTypes;
sl@0	742	};
sl@0	743
sl@0	744	/**
sl@0	745	Specifies the YUV-to-YUV conversion capabilities for a plug-in.
sl@0	746	@publishedAll
sl@0	747	@released
sl@0	748	*/
sl@0	749	class TYuvToYuvCapabilities
sl@0	750	{
sl@0	751	public:
sl@0	752	/**
sl@0	753	The YUV sampling patterns supported for input data, a combination (binary OR) of values from TYuvSamplingPatterns.
sl@0	754	*/
sl@0	755	TUint32 iInputSamplingPatterns;
sl@0	756
sl@0	757	/**
sl@0	758	The YUV data layouts supported for input data, a combination (binary OR) of values from TYuvDataLayout.
sl@0	759	*/
sl@0	760	TUint32 iInputDataLayouts;
sl@0	761
sl@0	762	/**
sl@0	763	The YUV sampling patterns supported for output data, a combination (binary OR) of values from TYuvSamplingPatterns.
sl@0	764	*/
sl@0	765	TUint32 iOutputSamplingPatterns;
sl@0	766
sl@0	767	/**
sl@0	768	The YUV data layouts supported for output data, a combination (binary OR) of values from TYuvDataLayout.
sl@0	769	*/
sl@0	770	TUint32 iOutputDataLayouts;
sl@0	771	};
sl@0	772
sl@0	773	/**
sl@0	774	Structure to combine a picture rate and size. Used when defining the maximum rate/size combinations
sl@0	775	available.
sl@0	776	@publishedAll
sl@0	777	@released
sl@0	778	*/
sl@0	779	class TPictureRateAndSize
sl@0	780	{
sl@0	781	public:
sl@0	782	/** The picture rate. */
sl@0	783	TReal iPictureRate;
sl@0	784
sl@0	785	/** The picture size. */
sl@0	786	TSize iPictureSize;
sl@0	787	};
sl@0	788
sl@0	789	/**
sl@0	790	CMMFVideoHwDevice is a base class for all video hardware devices.
sl@0	791	@publishedAll
sl@0	792	@released
sl@0	793	*/
sl@0	794	class CMMFVideoHwDevice : public CBase
sl@0	795	{
sl@0	796	public:
sl@0	797	/**
sl@0	798	Retrieves a custom interface to the device.
sl@0	799	@param "aInterface" "Interface UID, defined with the custom interface."
sl@0	800	@return "Pointer to the interface implementation, or NULL if the device does not
sl@0	801	implement the interface requested. The return value must be cast to the
sl@0	802	correct type by the user."
sl@0	803	*/
sl@0	804	virtual TAny* CustomInterface(TUid aInterface) = 0;
sl@0	805	};
sl@0	806
sl@0	807
sl@0	808
sl@0	809	/**
sl@0	810	Defines the interface that video clock sources must to implement.
sl@0	811
sl@0	812	A clock source can be used to synchronize video processing to some other processing entity,
sl@0	813	for example an audio stream. The clock source is created and controlled by the DevVideo client,
sl@0	814	and passed to the video hwdevices via the DevVideo interface. This allows the hwdevice to query
sl@0	815	the current stream time, so it can ascertain which frame should be processed at any given moment.
sl@0	816
sl@0	817	"Stream time" is defined as the current position in the media stream. For example, when playing
sl@0	818	a video clip, the stream time will always equal the current position in the clip. So, when the
sl@0	819	clip is repositioned, the stream time will be equal to the new clip position. When the clip is
sl@0	820	paused, the stream time will pause too.
sl@0	821
sl@0	822	Many hwdevice implementations will use extra threads to perform the video processing, so it is
sl@0	823	essential that all implementations of the MMMFClockSource interface can be used from multiple
sl@0	824	threads. A hwdevice that receives a clock source from the DevVideo client must be able to
sl@0	825	assume that it can pass a pointer to the clock source object into another thread and use the
sl@0	826	object directly from there.
sl@0	827
sl@0	828	All clock source implementations must protect the methods defined in the MMMFClockSource interface
sl@0	829	so they can be called from any thread within the current process. Practically speaking, this means
sl@0	830	using mutexes and critical sections to protect member data from being accessed from multiple threads
sl@0	831	simultaneously. Also, any use of thread-specific handles (e.g. a CMMFDevSound object) must be
sl@0	832	avoided from within these methods.
sl@0	833
sl@0	834	It can be assumed that any methods defined outside the MMMFClockSource interface (for example
sl@0	835	methods used to control the clock source) will only be executed within the DevVideo client's thread,
sl@0	836	so do not require protection.
sl@0	837
sl@0	838	@publishedAll
sl@0	839	@released
sl@0	840	*/
sl@0	841	class MMMFClockSource
sl@0	842	{
sl@0	843	public:
sl@0	844	/**
sl@0	845	Retrieves a custom interface for the clock source.
sl@0	846
sl@0	847	This method can be called from any thread running inside the process in which the concrete
sl@0	848	clock source was created. Note that this does not mean that all methods in the custom
sl@0	849	interface can be called from any thread - that will be specified by the custom interface itself.
sl@0	850
sl@0	851	@param "aInterface" "Interface UID, defined by the entity specifying the interface."
sl@0	852	@return "Pointer to the interface implementation, or NULL if the interface is not available.
sl@0	853	The pointer must be cast to the appropriate interface class."
sl@0	854	*/
sl@0	855	virtual TAny* CustomInterface(TUid aInterface) = 0;
sl@0	856
sl@0	857	/**
sl@0	858	Retrieves the current stream time. For example, if a clip is being played, the stream time will
sl@0	859	be equal to the current position in the clip.
sl@0	860
sl@0	861	This method can be called from any thread running inside the process in which the concrete clock
sl@0	862	source was created.
sl@0	863
sl@0	864	@return "The number of microseconds passed in the clock compared to the reference time."
sl@0	865	*/
sl@0	866	virtual TTimeIntervalMicroSeconds Time() = 0;
sl@0	867	};
sl@0	868
sl@0	869	/**
sl@0	870	The CSystemClockSource provides a basic clock source implementation based on the system clock.
sl@0	871	It will count microseconds since the object was created or Reset() was last called, and return
sl@0	872	that count from Time(). It does not implement any custom interfaces.
sl@0	873	@publishedAll
sl@0	874	@released
sl@0	875	*/
sl@0	876	class CSystemClockSource : public CBase, public MMMFClockSource
sl@0	877	{
sl@0	878	public:
sl@0	879	/**
sl@0	880	Creates a new CSystemClockSource object.
sl@0	881	@return "A new clock source object."
sl@0	882	@leave "This method may leave with one of the system-wide error codes."
sl@0	883	*/
sl@0	884	IMPORT_C static CSystemClockSource* NewL();
sl@0	885
sl@0	886	/**
sl@0	887	Destructor.
sl@0	888	*/
sl@0	889	IMPORT_C ~CSystemClockSource();
sl@0	890
sl@0	891	// Control methods
sl@0	892	/**
sl@0	893	Resets the clock source to zero. Typically called by the DevVideo client at stream start.
sl@0	894	*/
sl@0	895	IMPORT_C void Reset();
sl@0	896
sl@0	897	/**
sl@0	898	Resets the clock source to a user-defined offset. Typically called by the DevVideo client
sl@0	899	when seeking in a file.
sl@0	900
sl@0	901	@param "aOffset" "The clock offset."
sl@0	902	*/
sl@0	903	IMPORT_C void Reset(const TTimeIntervalMicroSeconds& aOffset);
sl@0	904
sl@0	905	/**
sl@0	906	Suspends the clock source. The clock time will not increment until the clock has been resumed.
sl@0	907	This method is used when pausing playback.
sl@0	908	*/
sl@0	909	IMPORT_C void Suspend();
sl@0	910
sl@0	911	/**
sl@0	912	Resumes the clock source after a Suspend() method call. This method is used when resuming playback.
sl@0	913	*/
sl@0	914	IMPORT_C void Resume();
sl@0	915
sl@0	916	// Implementation of MMMFClockSource
sl@0	917	/**
sl@0	918	No custom interfaces are implemented by this clock source, so this method will always return NULL.
sl@0	919	@param "aInterface" "The interface"
sl@0	920	@return "NULL"
sl@0	921	*/
sl@0	922	virtual TAny* CustomInterface(TUid aInterface);
sl@0	923	/**
sl@0	924	Retrieves the time that has elapsed since Reset() was last called, subtracting any time
sl@0	925	during which the clock was suspended.
sl@0	926
sl@0	927	@return "The number of microseconds that have elapsed in the stream."
sl@0	928	*/
sl@0	929	virtual TTimeIntervalMicroSeconds Time();
sl@0	930
sl@0	931	private:
sl@0	932	CSystemClockSource();
sl@0	933	void ConstructL();
sl@0	934	private:
sl@0	935	TTime iStartTime;
sl@0	936	TTime iCurrentTime;
sl@0	937
sl@0	938	TTimeIntervalMicroSeconds iOffset;
sl@0	939
sl@0	940	TTime iTimeWhenSuspended;
sl@0	941	TTimeIntervalMicroSeconds iTimeSuspended;
sl@0	942	TBool iSuspended;
sl@0	943
sl@0	944	RCriticalSection iCriticalSection;
sl@0	945	};
sl@0	946
sl@0	947
sl@0	948	/**
sl@0	949	Observer class to be used with class CMMFClockSourcePeriodicUtility.
sl@0	950	@publishedAll
sl@0	951	@released
sl@0	952	*/
sl@0	953	class MMMFClockSourcePeriodicUtilityObserver
sl@0	954	{
sl@0	955	public:
sl@0	956	/**
sl@0	957	Notifies the observer that the specified period has elapsed.
sl@0	958	@param "aTime" "The current time, queried from the clock source."
sl@0	959	*/
sl@0	960	virtual void MmcspuoTick(const TTimeIntervalMicroSeconds& aTime) = 0;
sl@0	961	};
sl@0	962
sl@0	963	/**
sl@0	964	Utility class that can be used by video HW devices to receive periodic callbacks with the current time.
sl@0	965	Note that the exact timing of the callbacks cannot be guaranteed due to other things pre-empting
sl@0	966	the execution of the active object or thread.
sl@0	967	@publishedAll
sl@0	968	@released
sl@0	969	*/
sl@0	970	class CMMFClockSourcePeriodicUtility : public CBase
sl@0	971	{
sl@0	972	public:
sl@0	973	/**
sl@0	974	Creates a new clock source periodic utility object.
sl@0	975
sl@0	976	@param "aClockSource" "A reference to the clock source to be used to query the current time."
sl@0	977	@param "aObserver" "A reference to the observer of the utility that will receive callbacks
sl@0	978	each time the specified period elapses."
sl@0	979	@return "A new clock source periodic utility object."
sl@0	980	@leave "The method will leave if an error occurs."
sl@0	981	*/
sl@0	982	IMPORT_C static CMMFClockSourcePeriodicUtility* NewL(MMMFClockSource& aClockSource, MMMFClockSourcePeriodicUtilityObserver& aObserver);
sl@0	983
sl@0	984	/**
sl@0	985	Starts the clock source periodic utility. The utility will call MmcspuoTick on its observer
sl@0	986	every aPeriod microseconds until Stop() is called. Note that the utility will not stop
sl@0	987	automatically when the clock source is stopped.
sl@0	988
sl@0	989	@param "aPeriod" "Defines the period with which the observer will receive callbacks."
sl@0	990	*/
sl@0	991	IMPORT_C void Start(TTimeIntervalMicroSeconds32 aPeriod);
sl@0	992
sl@0	993	/**
sl@0	994	Stops the clock source periodic utility. No more callbacks will be made after this method has
sl@0	995	been called.
sl@0	996	*/
sl@0	997	IMPORT_C void Stop();
sl@0	998
sl@0	999	/**
sl@0	1000	Destructor.
sl@0	1001	*/
sl@0	1002	IMPORT_C ~CMMFClockSourcePeriodicUtility();
sl@0	1003	private:
sl@0	1004	CMMFClockSourcePeriodicUtility(MMMFClockSource& aClockSource, MMMFClockSourcePeriodicUtilityObserver& aObserver);
sl@0	1005	void ConstructL();
sl@0	1006	static TInt Callback(TAny* aAny);
sl@0	1007	void DoCallback();
sl@0	1008	private:
sl@0	1009	CPeriodic* iTimer;
sl@0	1010	MMMFClockSource& iClockSource;
sl@0	1011	MMMFClockSourcePeriodicUtilityObserver& iObserver;
sl@0	1012	};
sl@0	1013
sl@0	1014
sl@0	1015	/**
sl@0	1016	Specifies the encoder buffering options.
sl@0	1017	@publishedAll
sl@0	1018	@released
sl@0	1019	*/
sl@0	1020	class TEncoderBufferOptions
sl@0	1021	{
sl@0	1022	public:
sl@0	1023	/**
sl@0	1024	The maximum number of pictures in the pre-encoder buffer.
sl@0	1025	*/
sl@0	1026	TUint iMaxPreEncoderBufferPictures;
sl@0	1027
sl@0	1028	/**
sl@0	1029	The HRD/VBV specification that shall be fullfilled.
sl@0	1030	*/
sl@0	1031	THrdVbvSpecification iHrdVbvSpec;
sl@0	1032
sl@0	1033	/**
sl@0	1034	The HRD/VBV buffering parameters. The data format depends on the parameters chosen. For
sl@0	1035	3GPP TS 26.234 parameters (iHrdVbvSpec=EHrdVbv3GPP), the data in the descriptor is a package of type
sl@0	1036	TPckC<T3gppHrdVbvParams> (see T3gppHrdVbvParams). If no HRD/VBV parameters are used, the
sl@0	1037	descriptor is empty.
sl@0	1038	*/
sl@0	1039	TPtrC8 iHrdVbvParams;
sl@0	1040
sl@0	1041	/**
sl@0	1042	The maximum size of an output buffer, in bytes. Use KMaxTUint for an unlimited size.
sl@0	1043	*/
sl@0	1044	TUint iMaxOutputBufferSize;
sl@0	1045
sl@0	1046	/**
sl@0	1047	The maximum size of a coded picture, in bytes. Use KMaxTUint for an unlimited size.
sl@0	1048	*/
sl@0	1049	TUint iMaxCodedPictureSize;
sl@0	1050
sl@0	1051	/**
sl@0	1052	The maximum size of a coded video segment, in bytes. Use KMaxTUint for an unlimited size.
sl@0	1053	*/
sl@0	1054	TUint iMaxCodedSegmentSize;
sl@0	1055
sl@0	1056	/**
sl@0	1057	The mimimum number of output buffers.
sl@0	1058	*/
sl@0	1059	TUint iMinNumOutputBuffers;
sl@0	1060	};
sl@0	1061
sl@0	1062	/**
sl@0	1063	Specifies the video encoder bit-rate control options.
sl@0	1064	@publishedAll
sl@0	1065	@released
sl@0	1066	*/
sl@0	1067	class TRateControlOptions
sl@0	1068	{
sl@0	1069	public:
sl@0	1070	/**
sl@0	1071	Defines the bit-rate control type.
sl@0	1072	*/
sl@0	1073	TBitrateControlType iControl;
sl@0	1074
sl@0	1075	/**
sl@0	1076	The target bit-rate, in bits per second. Used if bit-rate control type is EBrControlStream.
sl@0	1077	If specified for an enhancement layer, the target bit-rate includes all lower layers. For example,
sl@0	1078	if the client uses two layers, with the base layer using 64000 bps and the whole stream 192000 bps,
sl@0	1079	this field is set to 64000 for layer zero and 192000 for layer one.
sl@0	1080	*/
sl@0	1081	TUint iBitrate;
sl@0	1082
sl@0	1083	/**
sl@0	1084	The target picture quality. The value range is [0…100], with 0 corresponding to minimum quality
sl@0	1085	and 100 to lossless coding (or the closest equivalent supported).
sl@0	1086	*/
sl@0	1087	TUint iPictureQuality;
sl@0	1088
sl@0	1089	/**
sl@0	1090	The target picture rate, in pictures per second. If specified for an enhancement layer, the target
sl@0	1091	frame rate includes all lower layers.
sl@0	1092	*/
sl@0	1093	TReal iPictureRate;
sl@0	1094
sl@0	1095	/**
sl@0	1096	The quality/temporal tradeoff for bit-rate control. The value range is [0.0…1.0]. Value 0.0
sl@0	1097	specifies that picture quality should be maintained as well as possible, sacrificing picture rate.
sl@0	1098	Value 1.0 specifies that picture rate should be maintained as well as possible, sacrificing
sl@0	1099	picture quality.
sl@0	1100	*/
sl@0	1101	TReal iQualityTemporalTradeoff;
sl@0	1102
sl@0	1103	/**
sl@0	1104	The latency/quality tradeoff for bit-rate control. The value range is [0.0…1.0]. Value 0.0
sl@0	1105	specifies that the transmission delay and the decoder input buffer occupancy level caused by
sl@0	1106	the bit-rate control is minimized, i.e. the actual coded bit-rate follows the target bit-rate
sl@0	1107	as closely as possible. 1.0 specifies that the transmission delay caused by the bit-rate control
sl@0	1108	should be as high as needed to guarantee a constant picture quality and frame rate as long as
sl@0	1109	the coded data conforms to the given HRD/VBV parameters (if any).
sl@0	1110	*/
sl@0	1111
sl@0	1112	TReal iLatencyQualityTradeoff;
sl@0	1113	};
sl@0	1114
sl@0	1115	/**
sl@0	1116	Custom interface Uid for setting up the DevVideo hw device adapter
sl@0	1117	*/
sl@0	1118	const TInt KUidDevVideoHwDeviceAdapterSetup = 0x102737EF;
sl@0	1119
sl@0	1120	#include <mmf/devvideo/devvideobase.inl>
sl@0	1121
sl@0	1122	#endif
sl@0	1123

author	sl
	Tue, 10 Jun 2014 14:32:02 +0200 (2014-06-10)
changeset 1	260cb5ec6c19
permissions	-rw-r--r--