[FFmpeg-devel] [PATCH 1/2] avcodec: add photocd decoder

[Carl Eugen Hoyos]

2018-12-21 19:48 GMT+01:00, Paul B Mahol <onemda at gmail.com>:

> +    if (s->luma) {
> +        ptr = p->data[0];
> +
> +        for (int y = 0; y < avctx->height; y++) {
> +            for (int x = 0; x < avctx->width; x++) {
> +                ptr[x] = av_clip_uint8(ptr[x] * 1.35);
> +            }

Without this multiplication, the y plane looks much more
similar to the reference with respect to brightness.

Thank you, Carl Eugen