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av_tx_init: accept NULL scale for RDFT

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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.

Reviewed-by: Lynne <dev@lynne.ee>
Signed-off-by: Peter Ross <pross@xvid.org>
This commit is contained in:
Peter Ross 2024-02-15 07:42:19 +11:00
parent 86128bd07a
commit a2cfd6062c
1 changed files with 2 additions and 2 deletions
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4
libavutil/tx.c
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@ -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);