On Thu, Jun 6, 2019 at 3:10 PM <lance.lmw...@gmail.com> wrote:
> From: Limin Wang <lance.lmw...@gmail.com>
>
> Signed-off-by: Limin Wang <lance.lmw...@gmail.com>
> ---
> libavfilter/vf_overlay.c | 12 ++++++------
> 1 file changed, 6 insertions(+), 6 deletions(-)
>
> diff --git a/libavfilter/vf_overlay.c b/libavfilter/vf_overlay.c
> index 0a8f089c0d..b468cedf2e 100644
> --- a/libavfilter/vf_overlay.c
> +++ b/libavfilter/vf_overlay.c
> @@ -500,7 +500,7 @@ static av_always_inline void
> blend_plane(AVFilterContext *ctx,
> for (; k < kmax; k++) {
> int alpha_v, alpha_h, alpha;
>
> - // average alpha for color components, improve quality
> + /* average alpha for color components, improve quality */
> if (hsub && vsub && j+1 < src_hp && k+1 < src_wp) {
> alpha = (a[0] + a[src->linesize[3]] +
> a[1] + a[src->linesize[3]+1]) >> 2;
> @@ -512,10 +512,10 @@ static av_always_inline void
> blend_plane(AVFilterContext *ctx,
> alpha = (alpha_v + alpha_h) >> 1;
> } else
> alpha = a[0];
> - // if the main channel has an alpha channel, alpha has to be
> calculated
> - // to create an un-premultiplied (straight) alpha value
> + /* if the main channel has an alpha channel, alpha has to be
> calculated */
> + /* to create an un-premultiplied (straight) alpha value */
> if (main_has_alpha && alpha != 0 && alpha != 255) {
> - // average alpha for color components, improve quality
> + /* average alpha for color components, improve quality */
> uint8_t alpha_d;
> if (hsub && vsub && j+1 < src_hp && k+1 < src_wp) {
> alpha_d = (da[0] + da[dst->linesize[3]] +
> @@ -556,7 +556,7 @@ static inline void alpha_composite(const AVFrame *src,
> const AVFrame *dst,
> int x, int y,
> int jobnr, int nb_jobs)
> {
> - uint8_t alpha; ///< the amount of overlay to blend on to main
> + uint8_t alpha; /* the amount of overlay to blend on to main
> */
> uint8_t *s, *sa, *d, *da;
> int i, imax, j, jmax;
> int slice_start, slice_end;
> @@ -587,7 +587,7 @@ static inline void alpha_composite(const AVFrame *src,
> const AVFrame *dst,
> *d = *s;
> break;
> default:
> - // apply alpha compositing: main_alpha += (1-main_alpha)
> * overlay_alpha
> + /* apply alpha compositing: main_alpha += (1-main_alpha)
> * overlay_alpha */
> *d += FAST_DIV255((255 - *d) * *s);
> }
> d += 1;
> --
>
ping, who can help to review and test the patches.
> 2.21.0
>
>
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