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Undocument TJ*PARAM_RESTARTBLOCKS for lossless

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TJ*PARAM_RESTARTBLOCKS technically works with lossless compression, but
it is not useful, since the value must be equal to the number of samples
in a row.  (In other words, it is no different than
TJ*PARAM_RESTARTINROWS, except that it requires the user to do more
math.)
This commit is contained in:
DRC
2024-08-28 18:36:37 -04:00
parent d62079717c
commit 5cf7960678
8 changed files with 15 additions and 20 deletions
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7
turbojpeg.h
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@@ -752,8 +752,7 @@ enum TJPARAM {
*/
TJPARAM_LOSSLESSPT,
/**
* JPEG restart marker interval in MCU blocks (lossy) or samples (lossless)
* [compression only]
* JPEG restart marker interval in MCU blocks [lossy compression only]
*
* The nature of entropy coding is such that a corrupt JPEG image cannot
* be decompressed beyond the point of corruption unless it contains restart
@@ -764,8 +763,8 @@ enum TJPARAM {
* adversely affect the compression ratio and performance.
*
* **Value**
* - the number of MCU blocks or samples between each restart marker
* *[default: `0` (no restart markers)]*
* - the number of MCU blocks between each restart marker *[default: `0` (no
* restart markers)]*
*
* Setting this parameter to a non-zero value sets #TJPARAM_RESTARTROWS to 0.
*/