From 1e6c925eb5f6b68097a9592ca4df4f24eb8b9e56 Mon Sep 17 00:00:00 2001 From: Aous Naman Date: Thu, 2 Sep 2021 18:51:38 +1000 Subject: 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. --- src/lib/openjp2/t1.c | 61 +++++++++++++++++++++++++++++++++++++++++----------- 1 file changed, 49 insertions(+), 12 deletions(-) (limited to 'src/lib/openjp2/t1.c') diff --git a/src/lib/openjp2/t1.c b/src/lib/openjp2/t1.c index 1bea54b0..f5fd2339 100644 --- a/src/lib/openjp2/t1.c +++ b/src/lib/openjp2/t1.c @@ -217,6 +217,27 @@ static OPJ_BOOL opj_t1_decode_cblk(opj_t1_t *t1, opj_mutex_t* p_manager_mutex, OPJ_BOOL check_pterm); +/** +Decode 1 HT code-block +@param t1 T1 handle +@param cblk Code-block coding parameters +@param orient +@param roishift Region of interest shifting value +@param cblksty Code-block style +@param p_manager the event manager +@param p_manager_mutex mutex for the event manager +@param check_pterm whether PTERM correct termination should be checked +*/ +OPJ_BOOL opj_t1_ht_decode_cblk(opj_t1_t *t1, + opj_tcd_cblk_dec_t* cblk, + OPJ_UINT32 orient, + OPJ_UINT32 roishift, + OPJ_UINT32 cblksty, + opj_event_mgr_t *p_manager, + opj_mutex_t* p_manager_mutex, + OPJ_BOOL check_pterm); + + static OPJ_BOOL opj_t1_allocate_buffers(opj_t1_t *t1, OPJ_UINT32 w, OPJ_UINT32 h); @@ -1665,18 +1686,34 @@ static void opj_t1_clbl_decode_processor(void* user_data, opj_tls_t* tls) } t1->mustuse_cblkdatabuffer = job->mustuse_cblkdatabuffer; - if (OPJ_FALSE == opj_t1_decode_cblk( - t1, - cblk, - band->bandno, - (OPJ_UINT32)tccp->roishift, - tccp->cblksty, - job->p_manager, - job->p_manager_mutex, - job->check_pterm)) { - *(job->pret) = OPJ_FALSE; - opj_free(job); - return; + if ((tccp->cblksty & J2K_CCP_CBLKSTY_HT) != 0) { + if (OPJ_FALSE == opj_t1_ht_decode_cblk( + t1, + cblk, + band->bandno, + (OPJ_UINT32)tccp->roishift, + tccp->cblksty, + job->p_manager, + job->p_manager_mutex, + job->check_pterm)) { + *(job->pret) = OPJ_FALSE; + opj_free(job); + return; + } + } else { + if (OPJ_FALSE == opj_t1_decode_cblk( + t1, + cblk, + band->bandno, + (OPJ_UINT32)tccp->roishift, + tccp->cblksty, + job->p_manager, + job->p_manager_mutex, + job->check_pterm)) { + *(job->pret) = OPJ_FALSE; + opj_free(job); + return; + } } x = cblk->x0 - band->x0; -- cgit v1.2.3