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avcodec/utvideodec : use gradient_pred dsp in interlace decoding

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This commit is contained in:
Martin Vignali 2017-12-09 19:26:08 +01:00
parent b1781caf9e
commit f2e9156eb6
1 changed files with 5 additions and 1 deletions
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6
libavcodec/utvideodec.c
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@ -502,6 +502,7 @@ static void restore_gradient_planar_il(UtvideoContext *c, uint8_t *src, ptrdiff_
int slice_start, slice_height;
const int cmask = ~(rmode ? 3 : 1);
const ptrdiff_t stride2 = stride << 1;
int min_width = FFMIN(width, 32);
for (slice = 0; slice < slices; slice++) {
slice_start = ((slice * height) / slices) & cmask;
@ -523,12 +524,15 @@ static void restore_gradient_planar_il(UtvideoContext *c, uint8_t *src, ptrdiff_
for (j = 1; j < slice_height; j++) {
// second line - first element has top prediction, the rest uses gradient
bsrc[0] = (bsrc[0] + bsrc[-stride2]) & 0xFF;
for (i = 1; i < width; i++) {
for (i = 1; i < min_width; i++) { /* dsp need align 32 */
A = bsrc[i - stride2];
B = bsrc[i - (stride2 + 1)];
C = bsrc[i - 1];
bsrc[i] = (A - B + C + bsrc[i]) & 0xFF;
}
if (width > 32)
c->llviddsp.add_gradient_pred(bsrc + 32, stride2, width - 32);
A = bsrc[-stride];
B = bsrc[-(1 + stride + stride - width)];
C = bsrc[width - 1];