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swscale/swscale_unscaled: fix planarRgbToplanarRgbWrapper() for formats with bpc between 9-14 bits

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Currently, planarRgbToplanarRgbWrapper() always sets the alpha value to 255,
without taking the bit depth into consideration.

This commit restricts the alpha value to the bit depth.
This commit is contained in:
Ramiro Polla 2025-05-18 23:02:27 +02:00
parent 748e960e04
commit d028cf03b8
1 changed files with 9 additions and 2 deletions
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11
libswscale/swscale_unscaled.c
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@ -1378,8 +1378,15 @@ static int planarRgbToplanarRgbWrapper(SwsInternal *c,
dst[1], dstStride[1]);
ff_copyPlane(src[2], srcStride[2], srcSliceY, srcSliceH, c->opts.src_w,
dst[2], dstStride[2]);
if (dst[3])
fillPlane(dst[3], dstStride[3], c->opts.src_w, srcSliceH, srcSliceY, 255);
if (dst[3]) {
if (is16BPS(c->opts.dst_format) || isNBPS(c->opts.dst_format)) {
const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(c->opts.dst_format);
fillPlane16(dst[3], dstStride[3], c->opts.src_w, srcSliceH, srcSliceY, 1,
desc_dst->comp[3].depth, isBE(c->opts.dst_format));
} else {
fillPlane(dst[3], dstStride[3], c->opts.src_w, srcSliceH, srcSliceY, 255);
}
}
return srcSliceH;
}