LibJPEG
jpeg_decompress_struct::Ah is only used within LibJPEG.
 
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CodeScopeSTM32 Libraries and SamplesLibJPEGjpeg_decompress_struct::Ah

jpeg_decompress_struct::Ah field

Syntax

int Ss, Se, Ah;

References

LocationReferrerText
jpeglib.h:641
int Ss, Se, Ah, Al; /* progressive JPEG parameters for scan */
jdarith.c:203process_restart()
if (! cinfo->progressive_mode || (cinfo->Ss == 0 && cinfo->Ah == 0)) {
jdarith.c:654start_pass()
if (cinfo->Ah != 0) {
jdarith.c:656start_pass()
if (cinfo->Ah-1 != cinfo->Al)
jdarith.c:662start_pass()
cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al);
jdarith.c:675start_pass()
if (cinfo->Ah != expected)
jdarith.c:681start_pass()
if (cinfo->Ah == 0) {
jdarith.c:696start_pass()
if (cinfo->Ss != 0 || cinfo->Ah != 0 || cinfo->Al != 0 ||
jdarith.c:706start_pass()
if (! cinfo->progressive_mode || (cinfo->Ss == 0 && cinfo->Ah == 0)) {
jdhuff.c:1329start_pass_huff_decoder()
if (cinfo->Ah != 0) {
jdhuff.c:1331start_pass_huff_decoder()
if (cinfo->Ah-1 != cinfo->Al)
jdhuff.c:1343start_pass_huff_decoder()
cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al);
jdhuff.c:1356start_pass_huff_decoder()
if (cinfo->Ah != expected)
jdhuff.c:1363start_pass_huff_decoder()
if (cinfo->Ah == 0) {
jdhuff.c:1381start_pass_huff_decoder()
if (cinfo->Ah == 0) { /* DC refinement needs no table */
jdhuff.c:1404start_pass_huff_decoder()
if (cinfo->Ss != 0 || cinfo->Ah != 0 || cinfo->Al != 0 ||
jdinput.c:332initial_setup()
cinfo->Ss, cinfo->Se, cinfo->Ah, cinfo->Al);
jdmarker.c:358get_sos()
cinfo->Ah = (c >> 4) & 15;
jdmarker.c:362get_sos()
cinfo->Ah, cinfo->Al);

Data Use

Functions writing jpeg_decompress_struct::Ah
Functions reading jpeg_decompress_struct::Ah
all items filtered out
jpeg_decompress_struct::Ah
all items filtered out