avcodec/pngdec: handle 4 more bytes with SIMD for RGB64 in paeth prediction
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
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@ -272,7 +272,8 @@ static void png_filter_row(PNGDSPContext *dsp, uint8_t *dst, int filter_type,
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if (bpp > 2 && size > 4) {
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/* would write off the end of the array if we let it process
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* the last pixel with bpp=3 */
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int w = bpp == 4 ? size : size - 3;
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int w = (bpp & 3) ? size - 3 : size;
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if (w > i) {
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dsp->add_paeth_prediction(dst + i, src + i, last + i, size - i, bpp);
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i = w;
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