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Add a README note about building with DQUIRC_MAX_REGIONS

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Question about decoding large images has come up several times, let's
document it better.
This commit is contained in:
Alexandre Perrin 2019-10-23 09:37:24 +02:00
parent 026485bdc6
commit 2e8c4ce7bc
1 changed files with 6 additions and 2 deletions
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README.md
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@ -59,8 +59,12 @@ additional information on stdout.
Installation Installation
------------ ------------
To build the library and associated demos/tests, type `make`. Type To build the library and associated demos/tests, type `make`. If you need to
`make install` to install the library, header file and camera demos. decode "large" image files build with `CFLAGS="-DQUIRC_MAX_REGIONS=65534" make`
instead. Note that this will increase the memory usage, it is discouraged for
low resource devices (i.e. embedded).
Type `make install` to install the library, header file and camera demos.
You can specify one or several of the following targets if you don't want, or You can specify one or several of the following targets if you don't want, or
are unable to build everything: are unable to build everything: