NvsMultiThumbnailSequenceView Class Reference

Multiple thumbnail sequence. More...

#import <NvsMultiThumbnailSequenceView.h>

Inheritance diagram for NvsMultiThumbnailSequenceView:

Instance Methods
(instancetype)	- init
(instancetype)	- initWithFrame:
(instancetype)	- initWithCoder:
(void)	- enableClipEditModeWithThumnailHeight:
	Set up edit mode, When descArray is set, the contentoffSize and contentSize are not reset to avoid the thumbnail flashing,contentOffset and contentSize shoule be reset. More...
(int64_t)	- mapTimelinePosFromX:
	Maps the X coordinate of the control to the timeline position. More...
(CGFloat)	- mapXFromTimelinePos:
	Maps the timeline position to the X coordinate of the control. More...
(void)	- scale:withAnchor:
	Zooms the current scale. More...
Instance Methods inherited from <NvsIconGeneratorDelegate>
(void)	- didIconReady:timestamp:taskId:
	Picture get callback. More...

Properties
NSArray< NvsThumbnailSequenceDesc * > *	descArray
	The thumbnail sequence describes the array. Note: Once it has been set, altering array contents will not work unless one sets the thumbnail sequence description array again. NVSThumbNailSequenceDesc should be arranged in the order of InPoint from small to large, and the time segments represented by InPoint and OutPoint should not overlap. More...
CGFloat	thumbnailAspectRatio
	Thumbnail aspect ratio,default:9.0/16. More...
double	pointsPerMicrosecond
	Scale bar, the number of points occupied per microsecond. default: 720.0/15000000. More...
CGFloat	startPadding
	Starting padding in unit of point. More...
CGFloat	endPadding
	Ending padding in unit of point. More...
NvsThumbnailImageFillMode	thumbnailImageFillMode
	Thumbnail image fill mode,default: NvsThumbnailFillModeStretch. More...
int64_t	maxTimelinePosToScroll
	The maximum timeline position (in microseconds) that is allowed to scroll. The default value is 0, which means no limit. More...

Detailed Description

Multiple thumbnail sequence.

A multi-thumbnail sequence displays a sequence of thumbnails of multiple clips within a timeline and supports the adjustment of the thumbnail time scale, and further supports scrolling when the effective content is excessively long.

Warning

In the NvsMultiThumbnailSequenceView class, all public APIs are used in the UI thread! ! !

Since

1.10.0

Method Documentation

enableClipEditModeWithThumnailHeight:

- (void) enableClipEditModeWithThumnailHeight:

(CGFloat)

height

Set up edit mode, When descArray is set, the contentoffSize and contentSize are not reset to avoid the thumbnail flashing,contentOffset and contentSize shoule be reset.

Parameters

height

Height of thumbnail image, Default: Height of UIScrollView.If the height of the thumbnail is less than the height of the UIScrollView, You can add a custom view below the thumbnail that scrolls along with the thumbnail. If the height of the thumbnail is greater than the UIScrollView height, the excess part will not respond to the gesture event.

Since

2.15.0

See also

reloadClipData

init

- (instancetype) init

initWithCoder:

- (instancetype) initWithCoder:

(NSCoder *)

aDecoder

initWithFrame:

- (instancetype) initWithFrame:

(CGRect)

frame

mapTimelinePosFromX:

- (int64_t) mapTimelinePosFromX:

(CGFloat)

x

Maps the X coordinate of the control to the timeline position.

Parameters

x	The X coordinate of the control(in points).

Returns

Returns the timeline position of the map(in microseconds).

See also

mapXFromTimelinePos

mapXFromTimelinePos:

- (CGFloat) mapXFromTimelinePos:

(int64_t)

timelinePos

Maps the timeline position to the X coordinate of the control.

Parameters

timelinePos

Timeline position(in microseconds)

Returns

Returns the mapped X coordinate of the control(in points).

See also

mapTimelinePosFromX

scale:withAnchor:

- (void) scale:		(double)	scaleFactor
withAnchor:		(CGFloat)	anchorX

Zooms the current scale.

Parameters

scaleFactor	Scale ratio,Value range：>0
anchorX	X coordinate of scaled anchor(in points).

Property Documentation

descArray

- (NSArray<NvsThumbnailSequenceDesc*>*) descArray

readwritenonatomicassign

The thumbnail sequence describes the array. Note: Once it has been set, altering array contents will not work unless one sets the thumbnail sequence description array again. NVSThumbNailSequenceDesc should be arranged in the order of InPoint from small to large, and the time segments represented by InPoint and OutPoint should not overlap.

endPadding

- (CGFloat) endPadding

readwritenonatomicassign

Ending padding in unit of point.

maxTimelinePosToScroll

- (int64_t) maxTimelinePosToScroll

readwritenonatomicassign

The maximum timeline position (in microseconds) that is allowed to scroll. The default value is 0, which means no limit.

pointsPerMicrosecond

- (double) pointsPerMicrosecond

readwritenonatomicassign

Scale bar, the number of points occupied per microsecond. default: 720.0/15000000.

startPadding

- (CGFloat) startPadding

readwritenonatomicassign

Starting padding in unit of point.

thumbnailAspectRatio

- (CGFloat) thumbnailAspectRatio

readwritenonatomicassign

Thumbnail aspect ratio,default:9.0/16.

thumbnailImageFillMode

- (NvsThumbnailImageFillMode) thumbnailImageFillMode

readwritenonatomicassign

Thumbnail image fill mode,default: NvsThumbnailFillModeStretch.

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The documentation for this class was generated from the following file:

• include/sdkcore/ios/NvsMultiThumbnailSequenceView.h