[FFmpeg-devel] [PATCH] av_tx_init: accept NULL scale for RDFT
Lynne
dev at lynne.ee
Thu Feb 15 03:18:16 EET 2024
Feb 14, 2024, 21:45 by pross at xvid.org:
> Make av_tx_init() agree with documentation:
>
> * Real to complex and complex to real DFTs.
> * For the float and int32 variants, the scale type is 'float', while for
> * the double variant, it's a 'double'. If scale is NULL, 1.0 will be used
> * as a default.
> ---
> libavutil/tx.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/libavutil/tx.c b/libavutil/tx.c
> index d6740071b9..cc360cff31 100644
> --- a/libavutil/tx.c
> +++ b/libavutil/tx.c
> @@ -914,9 +914,9 @@ av_cold int av_tx_init(AVTXContext **ctx, av_tx_fn *tx, enum AVTXType type,
> if (!(flags & AV_TX_INPLACE))
> flags |= FF_TX_OUT_OF_PLACE;
>
> - if (!scale && ((type == AV_TX_FLOAT_MDCT) || (type == AV_TX_INT32_MDCT)))
> + if (!scale && ((type == AV_TX_FLOAT_MDCT) || (type == AV_TX_INT32_MDCT) || (type == AV_TX_FLOAT_RDFT) || (AV_TX_INT32_RDFT)))
> scale = &default_scale_f;
> - else if (!scale && (type == AV_TX_DOUBLE_MDCT))
> + else if (!scale && ((type == AV_TX_DOUBLE_MDCT) || (type == AV_TX_DOUBLE_RDFT)))
> scale = &default_scale_d;
>
> ret = ff_tx_init_subtx(&tmp, type, flags, NULL, len, inv, scale);
>
LGTM
thnx
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