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avcodec/utvideodec : use dsp add_median_pred for second line

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process start of the line in scalar, before call dsp
(dsp need align 16)
This commit is contained in:
Martin Vignali 2017-11-26 19:18:48 +01:00
parent 179a2f04eb
commit 9e1c9633cc
1 changed files with 10 additions and 2 deletions
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12
libavcodec/utvideodec.c
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@ -373,12 +373,16 @@ static void restore_median_planar(UtvideoContext *c, uint8_t *src, ptrdiff_t str
C = bsrc[-stride];
bsrc[0] += C;
A = bsrc[0];
for (i = 1; i < width; i++) {
for (i = 1; i < FFMIN(width, 16); i++) { /* scalar loop (DSP need align 16) */
B = bsrc[i - stride];
bsrc[i] += mid_pred(A, B, (uint8_t)(A + B - C));
C = B;
A = bsrc[i];
}
if (width > 16)
c->llviddsp.add_median_pred(bsrc + 16, bsrc - stride + 16,
bsrc + 16, width - 16, &A, &B);
bsrc += stride;
// the rest of lines use continuous median prediction
for (j = 2; j < slice_height; j++) {
@ -424,12 +428,16 @@ static void restore_median_planar_il(UtvideoContext *c, uint8_t *src, ptrdiff_t
C = bsrc[-stride2];
bsrc[0] += C;
A = bsrc[0];
for (i = 1; i < width; i++) {
for (i = 1; i < FFMIN(width, 16); i++) { /* scalar loop (DSP need align 16) */
B = bsrc[i - stride2];
bsrc[i] += mid_pred(A, B, (uint8_t)(A + B - C));
C = B;
A = bsrc[i];
}
if (width > 16)
c->llviddsp.add_median_pred(bsrc + 16, bsrc - stride2 + 16,
bsrc + 16, width - 16, &A, &B);
c->llviddsp.add_median_pred(bsrc + stride, bsrc - stride,
bsrc + stride, width, &A, &B);
bsrc += stride2;