jpeg_calc_output_dimensions

Name

jpeg_calc_output_dimensions -- compute output image dimensions

Synopsis

#include <jpeglib.h>

void jpeg_calc_output_dimensions(j_decompress_ptr cinfo);

Description

jpeg_calc_output_dimensions() computes the output image dimensions based on the current compression parameter settings in the compression object. The following dimensions shall be computed:

output_width 

actual width of output image

output_height 

actual height of output image

out_color_components 

number of color components in out_color_space

output_components 

number of color components returned

rec_outbuf_height 

recommended height of scanline buffer