[FFmpeg-devel] [PATCH] avcodec/mpegvideo_enc: Fix 1 line and one column images

[Paul B Mahol]

On Mon, Apr 8, 2024 at 6:49 PM Michael Niedermayer <michael at niedermayer.cc>
wrote:

> Fixes: Ticket10952
> Fixes: poc21ffmpeg
> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> ---
>  libavcodec/mpegvideo_enc.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
> index d1b19178247..40844b2f682 100644
> --- a/libavcodec/mpegvideo_enc.c
> +++ b/libavcodec/mpegvideo_enc.c
> @@ -1199,8 +1199,8 @@ static int load_input_picture(MpegEncContext *s,
> const AVFrame *pic_arg)
>                  ptrdiff_t dst_stride = i ? s->uvlinesize : s->linesize;
>                  int h_shift = i ? s->chroma_x_shift : 0;
>                  int v_shift = i ? s->chroma_y_shift : 0;
> -                int w = s->width  >> h_shift;
> -                int h = s->height >> v_shift;
> +                int w = -((-s->width)  >> h_shift);
> +                int h = -((-s->height) >> v_shift);
>                  const uint8_t *src = pic_arg->data[i];
>                  uint8_t *dst = pic->f->data[i];
>                  int vpad = 16;
>

What that does? Its not same as aligned rshift macro?


> --
> 2.17.1
>
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