lavu/tx: add full-sized iMDCT transform flag

1 files changed, 4 insertions, 0 deletions

diff --git a/libavutil/tx_priv.h b/libavutil/tx_priv.h
index 0b40234355..1d4245e71b 100644
--- a/libavutil/tx_priv.h
+++ b/libavutil/tx_priv.h
@@ -121,6 +121,10 @@ struct AVTXContext {
     int        *pfatab; /* Input/Output mapping for compound transforms */
     int        *revtab; /* Input mapping for power of two transforms */
     int   *inplace_idx; /* Required indices to revtab for in-place transforms */
+
+    av_tx_fn    top_tx; /* Used for computing transforms derived from other
+                         * transforms, like full-length iMDCTs and RDFTs.
+                         * NOTE: Do NOT use this to mix assembly with C code. */
 };
 
 /* Checks if type is an MDCT */