ILMVDeinterlace Interface

This is the interface for the LEAD Video Deinterlace Filter.

Data types:

SEGMENT_OPERATION_MODE:

typedef enum SEGMENT_OPERATION_MODE 
{ 
   MODE_NO_DEINTERLACE = 0, 
   MODE_DEINTERLACE_ALL, 
   MODE_ DEINTERLACE_PATTERN, 
} SEGMENT_OPERATION_MODE; 

The SEGMENT_OPERATION_MODE constants describe how segment frames will be processed.

Member

Description

MODE_NO_DEINTERLACE

Do not deinterlace any frame in the segment.

MODE_DEINTERLACE_ALL

Deinterlace all frames in the segment.

MODE_ DEINTERLACE_PATTERN

Deinterlacing pattern is used. A frame will be deinterlaced if it lies in a deinterlace section in the pattern.

SEGMENT_TIME_FORMAT:

typedef enum sSEGMENT_TIME_FORMAT 
{ 
   SEGMENT_TIME_FORMAT_FRAME = 0, 
   SEGMENT_TIME_FORMAT_TIME, 
} SEGMENT_TIME_FORMAT; 

The SEGMENT_TIME_FORMAT constants describe the time format used for all segments.

Member

Description

SEGMENT_TIME_FORMAT_FRAME

Segment time format is frames. Frame numbering is zero-based and begins at the start of the stream.

SEGMENT_TIME_FORMAT_TIME

Segment time format is time, defined as hours, minutes, seconds, and milliseconds.

Properties:

Type

Name

Description

BOOL

Enabled

Indicates whether deinterlacing is enabled (TRUE) or not (FALSE).

BOOL

Even

Indicates whether to start with even lines (TRUE) or odd lines (FALSE).

BOOL

MergeFields

Indicates whether to use merge even and odd fields into a single frame.

BOOL

DoubleFrameRate

Indicates whether to double the output frame rate (TRUE) or not (FALSE). Currently, setting this property to TRUE overrides the pattern and segments settings, effectively ignoring all pattern and segment settings.

BOOL

StartWithEvenFrame

Indicates whether to start with an even frame (TRUE) or an odd frame (FALSE) when the DoubleFrameRate property is set to TRUE.

BOOL

IsLEADInputPinConnected

Read only; returns TRUE if the filters input pin is connected.

BOOL

IsLEADOutputPinConnected

Read only; returns TRUE if the filters output pin is connected.

long

InWidth

Read only; the input stream width.

long

InHeight

Read only; the input stream height.

long

OutWidth

Read only; the output stream width.

long

OutHeight

Read only; the output stream height.

long

InBits

Read only; the input stream bits per pixel.

long

OutBits

Read only; the output stream bits per pixel.

VARIANT_BOOL

EnableROI

Enables or disables the Region Of Interest. When an ROI is defined, the filter acts only on it, ignoring all pixels outside the region. Currently, the region is a rectangle defined by the ROILeft, ROITop, ROIRight and ROIBottom properties.

long

ROILeft

The left boundary of the ROI rectangle.

long

ROITop

The top boundary of the ROI rectangle.

long

ROIRight

The right boundary of the ROI rectangle.

long

ROIBottom

The bottom boundary of the ROI rectangle.

long

EnableGlobalPattern

Enables or disables the global deinterlacing pattern. The global pattern affects all the frames in the stream. With patterns, either global or segment specific, you can define what frames will be deinterlaced or ignored.

The pattern is defined using 3 parameters:

1.The preamble frames: a group of frames at the beginning of the stream or segment. You can choose whether the preamble frames will be deinterlaced.

2.No-Deinterlace frames: a group of frames, following the preamble frames, that will be ignored. No deinterlacing is applied.

3.Deinterlace frames: a group of frames, following the No-Deinterlace frames, that will be deinterlaced.

 

SEGMENT_TIME_FORMAT

SegmentsTimeFormat

Value that specifies the time format used to define segments. Possible values are:

SEGMENT_TIME_FORMAT_FRAME:   The time format is Frames, which is zero based.

SEGMENT_TIME_FORMAT_TIME:       The time format is Time, defined by hours, minutes, seconds, and milliseconds. The time of the first frame is zero (all fields).

long

SegmentsCount

(Read only) This property is updated with the number of available segments.

VARIANT_BOOL

EnableProtectedArea

Enables or disables the protected area. The protected area, a rectangle, is defined by its 4 boundaries, and is an area that will be excluded from deinterlacing. The protected area is independent of the ROI and the 2 regions can have any settings in the allowed range.

VARIANT_BOOL

AutoDeinterlace

Enable/Disable the auto deinterlace option. This will automatically deinterlace frames that need deinterlacing.

double

AutoDeinterlaceSensitivity

Specifies when deinterlacing is necessary. Values range between 0.001 and 8.000. The default is 1.000. Values lower than 1.000 increase the chance a frame will be considered interlaced. With low values, deinterlacing  may be performed even when the interlaced effect is on a small portion of the image.

Interface methods:

HRESULT ResetToDefaults()

Reset all the Deinterlace options to the default values.

HRESULT SetGlobalPattern(long PreambleFrames, long NoDeinterlaceFrames, long DeinterlaceFrames VARIANT_BOOL DeintPreamble)

Parameters

PreambleFrames

The number of preamble frames of the global pattern.

NoDeinterlaceFrames

The number of No-Deinterlace frames of the global pattern.

DeinterlaceFrames

The number of Deinterlace frames of the global pattern.

DeintPreamble

A Boolean value that indicates whether to deinterlace the preamble frames (TRUE) or not (FALSE).

Description

Sets the global pattern parameters.

Returns

S_OK if successful, S_FALSE otherwise.

HRESULT GetGlobalPattern(long* pPreambleFrames,long * pNoDeinterlaceFrames, long *pDeinterlaceFrames, VARIANT_BOOL *pDeintPreamble)

Parameters

pPreambleFrames

Pointer to a variable that will receive the number of preamble frames of the global pattern.

pNoDeinterlaceFrames

Pointer to a variable that will receive the number of No-Deinterlace frames of the global pattern.

pDeinterlaceFrames

Pointer to a variable that will receive the number of Deinterlace frames of the global pattern.

pDeintPreamble

Pointer to a variable that will receive the state of preamble frames deinterlacing; TRUE indicates that the preamble frames will be deinterlaced, and FALSE indicates that the preamble frames will not be deinterlaced (passed untouched).

Description

Retrieves the global pattern parameters.

Returns

S_OK if successful, S_FALSE otherwise.

HRESULT AddSegment(long Index);

Parameters

Index

Index of the segment before which the new segment will be added. Valid indexes range from zero to SegmentsCount - 1. If an invalid index is passed, the segment will be added to the end of the list.

Description

Adds a new segment before the segment at the specified index.

Returns

S_OK if successful, S_FALSE otherwise.

HRESULT RemoveSegment(long Index);

Parameters

Index

Index of the segment to remove.

Description

Removes the segment at the specified index.

Returns

S_OK if successful, S_FALSE otherwise.

HRESULT SetSegmentData(long Index, long SegmentData)

Parameters

Index

The zero based index of the segment for which to set the data.

SegmentData

A 4-byte chunk of user data. The saved user data can be retrieved using the GetSegmentData method.

Description

Attaches a 4-bytes user data to the segment whose index is passed.

Returns

S_OK if successful, S_FALSE otherwise.

HRESULT GetSegmentData(long Index, long *pSegmentData)

Parameters

Index

The zero based index of the segment.

pSegmentData

Pointer to a variable that will receive the user data saved using SetSegmentData, or zero if no data was attached to the segment.

Description

Retrieves the user data attached to the segment whose index is passed.

Returns

S_OK if successful, S_FALSE otherwise.

GetSegmentStartTime

Parameters

Index

The zero based index of the segment.

pHour

Pointer to a variable that will receive the hours portion of the segment start time.

pMinutes

Pointer to a variable that will receive the minutes portion of the segment start time.

pSeconds

Pointer to a variable that will receive the seconds portion of the segment start time.

pMilliSeconds

Pointer to a variable that will receive the milliseconds portion of the segment start time.

Description

Retrieves the start time of the segment whose index is passed. If the segments time format is not SEGMENT_TIME_FORMAT_TIME, then the provided values are undefined.

Returns

S_OK if successful, S_FALSE otherwise.

HRESULT SetSegmentStartTime(long Index, long Hours, long Seconds, long Minutes,long MilliSeconds)

Parameters

Index

The zero based index of the segment for which to set the start time.

Hour

The hours portion of the segment start time.

Minutes

The minutes portion of the segment start time. Valid values range from 0 to 59.

Seconds

The sconds portion of the segment start time. Valid values range from 0 to 59.

MilliSeconds

The milliseconds portion of the segment start time. Valid values range from 0 to 999.

Description

Sets the start time for the segment at the specified index. If the SegmentsTimeFormat property is not SEGMENT_TIME_FORMAT_TIME, then changing the start time will not have any effect.

Returns

S_OK if successful, S_FALSE otherwise.

HRESULT GetSegmentStartFrame(long Index,LONGLONG *pStartFrame)

Parameters

Index

The zero based index of the segment.

pllStartFrame

Pointer to a variable that will receive the position of the first frame in the segment. Zero based frame counting from the start of the stream, is used.

Description

Retrieves the position of the first frame in the segment. If the SegmentsTimeFormat property is not SEGMENT_TIME_FORMAT_FRAME, then the provided value is undefined.

Returns

S_OK if successful, S_FALSE otherwise.

HRESULT SetSegmentStartFrame(long Index, LONGLONG StartFrame)

Parameters

Index

The zero based index of the segment.

StartFrame

The position of the first frame in the segment. Frame numbering is zero-based and starts at the beginning of the stream.

Description

Sets the position of the first frame in the segment. If the SegmentsTimeFormat property is not SEGMENT_TIME_FORMAT_FRAME, then changing the start frame will not have any effect.

Returns

S_OK if successful, S_FALSE otherwise.

HRESULT GetSegmentOperationMode(long Index, SEGMENT_OPERATION_MODE *pOperationMode)

Parameters

Index The zero based index of the segment.
pOperationMode Pointer to a value that will receive the currently used segment operation mode. Possible values are:
  Mode Description
  MODE_NO_DEINTERLACE No frame in the segment will be deinterlaced.
  MODE_DEINTERLACE_ALL All frames in the segment will be deinterlaced.
  MODE_DEINTERLACE_PATTERN Deinterlace according to a pattern. A frame will be deinterlaced if it lies in a deinterlace section in the pattern.

Description

Gets the operation mode of the segment whose index is passed.

Returns

S_OK if successful, S_FALSE otherwise.

HRESULT SetSegmentOperationMode(long Index, SEGMENT_OPERATION_MODE OperationMode)

Parameters

Index The zero based index of the segment.
OperationMode The operation mode to set. Possible values are:
  Mode Description
  MODE_NO_DEINTERLACE Do not interlace any frame in the segment.
  MODE_DEINTERLACE_ALL Deinterlace all frames in the segment.
  MODE_DEINTERLACE_PATTERN Deinterlace according to a pattern. A frame will be deinterlaced if it lies in a deinterlace section in the pattern being used.

Description

Gets the operation mode of the segment at the specified index.

Returns

S_OK if successful, S_FALSE otherwise.

HRESULT GetSegmentPattern(long Index, long* pPreambleFrames, long * pNoDeinterlaceFrames, long *pDeinterlaceFrames, VARIANT_BOOL *pDeintPreamble)

Parameters

Index

The zero based index of the segment.

pPreambleFrames

Pointer to a variable that will receive the number of preamble frames of the segment's pattern.

pNoDeinterlaceFrames

Pointer to a variable that will receive the number of No-Deinterlace frames of the segment's pattern.

pDeinterlaceFrames

Pointer to a variable that will receive the number of Deinterlace frames of the segment's pattern.

*pDeintPreamble

Pointer to a variable that will receive the state of preamble frames deinterlacing; TRUE indicates that the preamble frames will be deinterlaced, and FALSE indicates that the preamble frames will not be deinterlaced (passed untouched).

Description

Retrieves the segment pattern parameters.

Returns

S_OK if successful, S_FALSE otherwise.

HRESULT SetSegmentPattern(long Index, long PreambleFrames, long NoDeinterlaceFrames, long DeinterlaceFrames, VARIANT_BOOL DeintPreamble)

Parameters

PreambleFrames

The number of preamble frames in the segment pattern.

NoDeinterlaceFrames

The number of No-Deinterlace frames in the segment pattern.

DeinterlaceFrames

The number of Deinterlace frames in the segment pattern.

DeintPreamble

A Boolean value that indicates whether to deinterlace the preamble frames (TRUE) or not (FALSE).

Description

Sets the segment pattern parameters.

Returns

S_OK if successful, S_FALSE otherwise.

HRESULT GetProtectedAreaParams(long *Left, long *Right, long *Top, long *Bottom)

Parameters

Left

Pointer to a variable to be updated with the left boundary of the protected area. The possible range for the left boundary is from zero to the right boundary minus one.

Right

Pointer to a variable to be updated with the right boundary of the protected area. The possible range for the right boundary is from the left boundary plus one to the current video width.

Top

Pointer to a variable that will receive the top boundary of the protected area. The possible range for the top boundary is from zero to the bottom boundary minus one.

Bottom

Pointer to a variable that will receive the bottom boundary of the protected area. The possible range for the bottom boundary is from the top boundary plus one to the current video height.

Description

Retrieves the protected area boundaries.

Returns

S_OK if successful, an error code otherwise.

HRESULT SetProtectedAreaParams(long Left, long Right, long Top, long Bottom)

Parameters

Left

Value that represents the left boundary of the protected area. The possible range for the left boundary is from zero to the right boundary minus one. Use -1 to keep the current left boundary value.

Right

Value that represents the right boundary of the protected area. The possible range for the right boundary is from the left boundary plus one to the current video width. Use -1 to keep the current right boundary value.

Top

Value that represents the top boundary of the protected area. The possible range for the top boundary is from zero to the bottom boundary minus one. Use -1 to keep the current top boundary value.

Bottom

Value that represents the bottom boundary of the protected area. The possible range for the bottom boundary is from the top boundary plus one to the current video height. Use -1 to keep the current bottom boundary value.

Description

Sets the protected area boundaries. If the protected area is not enabled when this method is called, the new boundaries will be set and will take effect the next time the protected area is enabled.

Returns

S_OK if successful, an error code otherwise.

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