MINOR: sample: add a private field to the struct sample_conv

These flags will be used for maps, and possibly later to pass some
extra information to other converters if needed.

diff --git a/include/types/sample.h b/include/types/sample.h
index a2d2296c8ba87be6982ebeb35cf6e6360a05ee6c..46bc75b6afcae057e233d0a38ab847ba614bf034 100644 (file)
--- a/include/types/sample.h
+++ b/include/types/sample.h
@@ -260,6 +260,7 @@ struct sample_conv {
                        char **err_msg);          /* argument validation function */
        unsigned int in_type;                     /* expected input sample type */
        unsigned int out_type;                    /* output sample type */
+       unsigned int private;                     /* private values. only used by maps */
 };
 
 /* sample conversion expression */