mirror of https://git.ffmpeg.org/ffmpeg.git
sws: move initializing dither_error higher up
It does not interact in any way with the code setting up the image pointers/strides, so it should not be intermixed with it.
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@ -907,6 +907,10 @@ int attribute_align_arg sws_scale(struct SwsContext *c,
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if (c->cascaded_context[0] && srcSliceY == 0 && srcSliceH == c->cascaded_context[0]->srcH)
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return scale_cascaded(c, srcSlice, srcStride, srcSliceY, srcSliceH, dst, dstStride);
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if (!srcSliceY && (c->flags & SWS_BITEXACT) && c->dither == SWS_DITHER_ED && c->dither_error[0])
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for (i = 0; i < 4; i++)
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memset(c->dither_error[i], 0, sizeof(c->dither_error[0][0]) * (c->dstW+2));
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memcpy(src2, srcSlice, sizeof(src2));
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memcpy(dst2, dst, sizeof(dst2));
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memcpy(srcStride2, srcStride, sizeof(srcStride2));
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@ -959,10 +963,6 @@ int attribute_align_arg sws_scale(struct SwsContext *c,
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src2[0] = base;
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}
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if (!srcSliceY && (c->flags & SWS_BITEXACT) && c->dither == SWS_DITHER_ED && c->dither_error[0])
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for (i = 0; i < 4; i++)
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memset(c->dither_error[i], 0, sizeof(c->dither_error[0][0]) * (c->dstW+2));
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if (c->sliceDir != 1) {
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// slices go from bottom to top => we flip the image internally
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for (i=0; i<4; i++) {
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