LibJPEG
jpeg_compress_struct::smoothing_factor is only used within LibJPEG.
 
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CodeScopeSTM32 Libraries and SamplesLibJPEGjpeg_compress_struct::smoothing_factor

jpeg_compress_struct::smoothing_factor field

Syntax

int smoothing_factor;

References

LocationReferrerText
jpeglib.h:348
int smoothing_factor; /* 1..100, or 0 for no input smoothing */
jcparam.c:346jpeg_set_defaults()
cinfo->smoothing_factor = 0;
jcsample.c:334h2v2_smooth_downsample()
memberscale = 16384 - cinfo->smoothing_factor * 80; /* scaled (1-5*SF)/4 */
jcsample.c:335h2v2_smooth_downsample()
neighscale = cinfo->smoothing_factor * 16; /* scaled SF/4 */
jcsample.c:429fullsize_smooth_downsample()
memberscale = 65536L - cinfo->smoothing_factor * 512L; /* scaled 1-8*SF */
jcsample.c:430fullsize_smooth_downsample()
neighscale = cinfo->smoothing_factor * 64; /* scaled SF */
jcsample.c:512jinit_downsampler()
if (cinfo->smoothing_factor) {
jcsample.c:525jinit_downsampler()
if (cinfo->smoothing_factor) {
jcsample.c:542jinit_downsampler()
if (cinfo->smoothing_factor && !smoothok)

Data Use

Functions writing jpeg_compress_struct::smoothing_factor
Functions reading jpeg_compress_struct::smoothing_factor
all items filtered out
jpeg_compress_struct::smoothing_factor
all items filtered out