"Mid mismatch" warning with p1_03.j2k

[osamu620]

Decoding p1_03.j2k (a test codestream defined in the ISO/IEC 15444-4) shows the following warning:

[jpeg2000 @ 0x12d7079a0] Mid mismatch 1 in pass 18 of 22

This message comes from the lines:

ffmpeg-ht/libavcodec/jpeg2000dec.c

Lines 2045 to 2049 in 2eb9c35

	if (FFABS(cblk->data + cblk->data_start[term_cnt + 1] - 2 - t1->mqc.bp) > 0) {
	av_log(s->avctx, AV_LOG_WARNING, "Mid mismatch %"PTRDIFF_SPECIFIER" in pass %d of %d\n",
	cblk->data + cblk->data_start[term_cnt + 1] - 2 - t1->mqc.bp,
	pass_cnt, cblk->npasses);
	}

The cause of the warning should be investigated to suppress the warning.

[palemieux]

https://trac.ffmpeg.org/ticket/11295#ticket