Added support for high throughput (HTJ2K) decoding.

There are a few limitations:
- mixed mode (HT and regular code blocks) is not supported.
- ROI in HT blocks is not supported.
- Placeholder passes are not supported.
- MultiHT sets are not support, only a singleHT set.
- there are known issues with some compliance testing files related to
  the parsing of packet header.

1 files changed, 5 insertions, 0 deletions

diff --git a/src/lib/openjp2/tcd.h b/src/lib/openjp2/tcd.h
index f1b52b8d..340c2bf8 100644
--- a/src/lib/openjp2/tcd.h
+++ b/src/lib/openjp2/tcd.h
@@ -122,6 +122,11 @@ typedef struct opj_tcd_cblk_dec {
     opj_tcd_seg_data_chunk_t* chunks; /* Array of chunks */
     /* position of the code-blocks : left upper corner (x0, y0) right low corner (x1,y1) */
     OPJ_INT32 x0, y0, x1, y1;
+    /* Mb is The maximum number of bit-planes available for the representation of
+       coefficients in any sub-band, b, as defined in Equation (E-2). See
+       Section B.10.5 of the standard */
+    OPJ_UINT32 Mb;  /* currently used only to check if HT decoding is correct */
+    /* numbps is Mb - P as defined in Section B.10.5 of the standard */
     OPJ_UINT32 numbps;
     /* number of bits for len, for the current packet. Transitory value */
     OPJ_UINT32 numlenbits;