Protocol for movie file readers. More...
#import <LynkeosFileReader.h>
Inheritance diagram for <LynkeosMovieFileReader>:
Collaboration diagram for <LynkeosMovieFileReader>:
Instance Methods | |
| (u_long) | - numberOfFrames |
| Returns the number of frames in the movie. More... | |
| (NSImage *) | - getNSImageAtIndex: |
| Returns an NSImage for displaying one movie frame. More... | |
| (void) | - getImageSample:atIndex:withPrecision:withPlanes:atX:Y:W:H:lineWidth: |
| Retrieves one movie frame data for processing. More... | |
| (id< LynkeosImageBuffer >) | - getCustomImageSampleAtIndex:atX:Y:W:H: |
| Retrieves image data in a custom format for calibration.(see hasCustomImageBuffer). More... | |
 Instance Methods inherited from <LynkeosFileReader> | |
| (id) | - initWithURL: |
| Initializes an instance for reading an URL. More... | |
| (void) | - imageWidth:height: |
| Get the pixel size of the image or movie. More... | |
| (u_short) | - numberOfPlanes |
| Get the number of color planes in this file. More... | |
| (void) | - getMinLevel:maxLevel: |
| Retrieves the minimum and maximum levels for this file. More... | |
| (NSDictionary *) | - getMetaData |
| Get the metadata of this file. More... | |
| (BOOL) | - canBeCalibratedBy: |
| Can image/movie data be calibrated by another reader instance data. More... | |
Additional Inherited Members | |
| Class Methods inherited from <LynkeosFileReader> | |
| (void) | + lynkeosFileTypes: |
| Returns the file types handled by that class. More... | |
| (BOOL) | + hasCustomImageBuffer |
| Does this reader provides some custom image buffer class(es) ? More... | |
Detailed Description
Protocol for movie file readers.
It allows the application to access each movie frame data.
Method Documentation
| - (id <LynkeosImageBuffer>) getCustomImageSampleAtIndex: | (u_long) | index | |
| atX: | (u_short) | x | |
| Y: | (u_short) | y | |
| W: | (u_short) | w | |
| H: | (u_short) | h | |
Retrieves image data in a custom format for calibration.(see hasCustomImageBuffer).
- Parameters
-
index The index of the frame to read. x X origin of the sample y Y origin of the sample w Width of sample h Height of sample
- Returns
- The image data in a custom format class conforming to LynkeosImageBuffer protocol
| - (void) getImageSample: | (void *const *const) | sample | |
| atIndex: | (u_long) | index | |
| withPrecision: | (floating_precision_t) | precision | |
| withPlanes: | (u_short) | nPlanes | |
| atX: | (u_short) | x | |
| Y: | (u_short) | y | |
| W: | (u_short) | w | |
| H: | (u_short) | h | |
| lineWidth: | (u_short) | lineW | |
Retrieves one movie frame data for processing.
The (x,y) coordinate system has its origin in the top left corner of the image. The samples shall be ordered left to right, then top to bottom.
Most file formats share this orientation and pixels ordering.
Implementors can use the macro SET_SAMPLE (from LynkeosImageBuffer.h) to fill the output buffer.
- Parameters
-
sample An array of buffers to fill with image data precision Wether the sample buffer shall be filled with floats or doubles index The index of the frame to read. nPlanes The number of buffers in the array. It can be 1 (the data shall be converted to monochrome), or 3 (RGB data). x X origin of the sample y Y origin of the sample w Width of sample h Height of sample lineW The number of samples in each line, as it can be larger than w there may be spare at the end of the lines. This only applies to sample
| - (NSImage*) getNSImageAtIndex: | (u_long) | index |
| - (u_long) numberOfFrames |
Returns the number of frames in the movie.
- Returns
- The number of movie frames.
The documentation for this protocol was generated from the following file:
