diff options
| author | Even Rouault <even.rouault@spatialys.com> | 2022-01-23 17:53:55 +0100 |
|---|---|---|
| committer | Even Rouault <even.rouault@spatialys.com> | 2022-01-23 17:54:44 +0100 |
| commit | 1de5fc6c51617f49515ef80708dd074432a27a6a (patch) | |
| tree | 218a72739c1fdb4708ebf581a90ea4492c23cae5 /src/lib/openjp2/openjpeg.h | |
| parent | 241e9e8efeb6750ef4202a61b3a436628e4f6d23 (diff) | |
opj_encoder_set_extra_options(): add a GUARD_BITS=value option
and add a -GuardBits option to opj_compress.
The recently-released SMPTE DCP Bv2.1 Application Profile (link below)
says that the number of guard bits in the QCD marker shall be 1 for 2K
content and 2 for 4K content. This change allows the number of guard bits
to be configured, so that users of openjpeg have the control they need to meet the specification.
https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=9161348
This is an alternative implementation of https://github.com/uclouvain/openjpeg/pull/1388
that keeps ABI unchanged.
Diffstat (limited to 'src/lib/openjp2/openjpeg.h')
| -rw-r--r-- | src/lib/openjp2/openjpeg.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/src/lib/openjp2/openjpeg.h b/src/lib/openjp2/openjpeg.h index b200a6ac..c0d6dbcb 100644 --- a/src/lib/openjp2/openjpeg.h +++ b/src/lib/openjp2/openjpeg.h @@ -1599,9 +1599,12 @@ OPJ_API OPJ_BOOL OPJ_CALLCONV opj_setup_encoder(opj_codec_t *p_codec, * <li>PLT=YES/NO. Defaults to NO. If set to YES, PLT marker segments, * indicating the length of each packet in the tile-part header, will be * written. Since 2.4.0</li> - * <li>TLM=YES/NO. Defaults to NO (except for Cinema and IMF profiles). - * If set to YES, TLM marker segments, indicating the length of each - * tile-part part will be written. Since 2.4.0</li> + * <li>TLM=YES/NO. Defaults to NO (except for Cinema and IMF profiles). + * If set to YES, TLM marker segments, indicating the length of each + * tile-part part will be written. Since 2.4.0</li> + * <li>GUARD_BITS=value. Number of guard bits in [0,7] range. Default value is 2. + * 1 may be used sometimes (like in SMPTE DCP Bv2.1 Application Profile for 2K images). + * Since 2.5.0</li> * </ul> * * @param p_codec Compressor handle |