feat(raw): raw reader - exposing max_raw_memory_mb (#4454)

PR is to address #3881 feature request. The reported wanted to expose `imgdata.rawparams.max_raw_memory_mb` as `raw:max_raw_memory_mb` --------- Signed-off-by: Ankit Sinha <[email protected]>
AcademySoftwareFoundation · Sep 30, 2024 · 8bfa994 · 8bfa994
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diff --git a/src/doc/builtinplugins.rst b/src/doc/builtinplugins.rst
@@ -2179,6 +2179,11 @@ options are supported:
        0 - do not use FBDD noise reduction, 1 - light FBDD reduction,
        2 (and more) - full FBDD reduction
        (Default: 0)
+   * - ``raw:max_raw_memory_mb``
+     - int
+     - Maximum memory allocation for processing of raw images. Stop processing if
+       raw buffer size grows larger than that value (in megabytes).
+       (Default: 2048)
 
 
 |

diff --git a/src/raw.imageio/rawinput.cpp b/src/raw.imageio/rawinput.cpp
@@ -453,6 +453,11 @@ RawInput::open_raw(bool unpack, const std::string& name,
     // Output 16 bit images
     m_processor->imgdata.params.output_bps = 16;
 
+    // Exposing max_raw_memory_mb setting. Default max is 2048.
+    m_processor->imgdata.rawparams.max_raw_memory_mb
+        = config.get_int_attribute("raw:max_raw_memory_mb", 2048);
+
+
     // Disable exposure correction (unless config "raw:auto_bright" == 1)
     m_processor->imgdata.params.no_auto_bright
         = !config.get_int_attribute("raw:auto_bright", 0);