[FFmpeg-devel] Re: [PATCH] avcodec/wasm/hevc: fix typo in butterfly macro

[Zhao Zhili via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>]

> On Dec 4, 2025, at 12:02, Xia Tao via ffmpeg-devel <ffmpeg-devel@ffmpeg.org> wrote:
> 
>> From 3ae4384673a1a2d4482d959ce3a95167bc2da056 Mon Sep 17 00:00:00 2001
> From: Xia Tao <xiatao@gmail.com>
> Date: Thu, 4 Dec 2025 11:49:50 +0800
> Subject: [PATCH] avcodec/wasm/hevc: fix typo in butterfly macro

Could you send a PR on https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls ? Thanks!

> 
> Signed-off-by: Xia Tao <xiatao@gmail.com>
> ---
> libavcodec/wasm/hevc/idct.c | 10 +++++-----
> 1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/libavcodec/wasm/hevc/idct.c b/libavcodec/wasm/hevc/idct.c
> index 828fc26a49..f2b04f307c 100644
> --- a/libavcodec/wasm/hevc/idct.c
> +++ b/libavcodec/wasm/hevc/idct.c
> @@ -279,7 +279,7 @@ void ff_hevc_idct_8x8_10_simd128(int16_t *coeffs,
> int col_limit)
>     x1 += x2;                                   \
>     x3 += x2;                                   \
> 
> -#define bufferfly(e, o, p, m)   \
> +#define butterfly(e, o, p, m)   \
>     p = wasm_i32x4_add(e, o);   \
>     m = wasm_i32x4_sub(e, o);   \
> 
> @@ -309,10 +309,10 @@ static void tr16_8x4(v128_t in0, v128_t in1,
> v128_t in2, v128_t in3,
>     v30 = wasm_i32x4_add(v30, wasm_i32x4_extmul_high_i16x8(in3, trans[5]));
>     v31 = wasm_i32x4_sub(v31, wasm_i32x4_extmul_high_i16x8(in3, trans[4]));
> 
> -    bufferfly(v24, v28, v16, v23);
> -    bufferfly(v25, v29, v17, v22);
> -    bufferfly(v26, v30, v18, v21);
> -    bufferfly(v27, v31, v19, v20);
> +    butterfly(v24, v28, v16, v23);
> +    butterfly(v25, v29, v17, v22);
> +    butterfly(v26, v30, v18, v21);
> +    butterfly(v27, v31, v19, v20);
> 
>     sp += offset;
>     wasm_v128_store(sp, v16); sp += 16;
> -- 
> 2.52.0
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