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authorAnton Khirnov <anton@khirnov.net>2014-05-17 22:30:42 +0200
committerAnton Khirnov <anton@khirnov.net>2014-05-19 07:12:55 +0200
commitc9f8809ee4c576d5833865039bc1c85754448f67 (patch)
treef7ae032e4f8f3f87f5ae55fdf4c6d2a2c9a1a629 /libavcodec/hevcpred_template.c
parent25bb7eaf9eb14e6e00264bf584aa4d380d3bc29f (diff)
hevc/intra_pred: simplify neighboring sample derivation
Diffstat (limited to 'libavcodec/hevcpred_template.c')
-rw-r--r--libavcodec/hevcpred_template.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/libavcodec/hevcpred_template.c b/libavcodec/hevcpred_template.c
index 8e80f81375..53b9c590b6 100644
--- a/libavcodec/hevcpred_template.c
+++ b/libavcodec/hevcpred_template.c
@@ -159,10 +159,10 @@ do { \
}
}
if (cand_bottom_left) {
- for (i = size + bottom_left_size; i < (size << 1); i++)
- left[i] = POS(-1, size + bottom_left_size - 1);
- for (i = size + bottom_left_size - 1; i >= size; i--)
+ for (i = size; i < size + bottom_left_size; i++)
left[i] = POS(-1, i);
+ EXTEND(left + size + bottom_left_size, POS(-1, size + bottom_left_size - 1),
+ size - bottom_left_size);
}
if (cand_left)
for (i = size - 1; i >= 0; i--)
@@ -172,13 +172,11 @@ do { \
top[-1] = left[-1];
}
if (cand_up)
- for (i = size - 1; i >= 0; i--)
- top[i] = POS(i, -1);
+ memcpy(top, src - stride, size * sizeof(pixel));
if (cand_up_right) {
- for (i = size + top_right_size; i < (size << 1); i++)
- top[i] = POS(size + top_right_size - 1, -1);
- for (i = size + top_right_size - 1; i >= size; i--)
- top[i] = POS(i, -1);
+ memcpy(top + size, src - stride + size, size * sizeof(pixel));
+ EXTEND(top + size + top_right_size, POS(size + top_right_size - 1, -1),
+ size - top_right_size);
}
if (s->pps->constrained_intra_pred_flag == 1) {