MINOR: sample: provide the original sample_conv descriptor struct to the argument checker function.
Note that this argument checker is still unused but will be used by
maps.
diff --git a/include/types/sample.h b/include/types/sample.h
index 956e794..2f21197 100644
--- a/include/types/sample.h
+++ b/include/types/sample.h
@@ -243,6 +243,7 @@
struct sample *smp); /* process function */
unsigned int arg_mask; /* arguments (ARG*()) */
int (*val_args)(struct arg *arg_p,
+ struct sample_conv *smp_conv,
char **err_msg); /* argument validation function */
unsigned int in_type; /* expected input sample type */
unsigned int out_type; /* output sample type */