[FFmpeg-devel] [PATCH] avcodec/on2avc: use the matching AVTX context for the 512 sized iMDCT

[Lynne]

Aug 5, 2023, 10:33 by cus at passwd.hu:

> Improves the audio corruption regression caused by
> 6ba0aa1770ba29eb4126c6a706f6b0cd3809648f reported in ticket #10029.
>
> There is still however a noticable audio glitch, so the FFT conversion to AVTX
> probably also needs some modifications.
>
> Signed-off-by: Marton Balint <cus at passwd.hu>
> ---
>  libavcodec/on2avc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/libavcodec/on2avc.c b/libavcodec/on2avc.c
> index 74be1dcb60..474adb149d 100644
> --- a/libavcodec/on2avc.c
> +++ b/libavcodec/on2avc.c
> @@ -700,7 +700,7 @@ static int on2avc_reconstruct_channel_ext(On2AVCContext *c, AVFrame *dst, int of
>  break;
>  case WINDOW_TYPE_EXT5:
>  c->wtf(c, buf, in, 512);
> -            c->mdct_half_fn(c->mdct, buf + 512, in + 512, sizeof(float));
> +            c->mdct_half_fn(c->mdct_half, buf + 512, in + 512, sizeof(float));
>  for (i = 0; i < 256; i++) {
>  FFSWAP(float, buf[i + 512], buf[1023 - i]);
>  }
>

LGTM
Thanks