lavu/tx: clarify stride for RDFT transforms

2 years ago · 93c30bd6f0
parent 43d285a40f
commit 93c30bd6f0
1 changed files with 3 additions and 1 deletions
--- a/libavutil/tx.h
+++ b/libavutil/tx.h
@ -75,7 +75,9 @@ enum AVTXType {
     * the double variant, it's a 'double'. If scale is NULL, 1.0 will be used
     * as a default.
     *
-     * The stride parameter must be set to the size of a single sample in bytes.
+     * For forward transforms (R2C), stride must be the spacing between two
+     * samples in bytes. For inverse transforms, the stride must be set
+     * to the spacing between two complex values in bytes.
     *
     * The forward transform performs a real-to-complex DFT of N samples to
     * N/2+1 complex values.