[FFmpeg-cvslog] hevc/intra_pred: simplify neighboring sample derivation
Anton Khirnov
git at videolan.org
Mon May 19 15:09:58 CEST 2014
ffmpeg | branch: master | Anton Khirnov <anton at khirnov.net> | Sat May 17 22:30:42 2014 +0200| [c9f8809ee4c576d5833865039bc1c85754448f67] | committer: Anton Khirnov
hevc/intra_pred: simplify neighboring sample derivation
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c9f8809ee4c576d5833865039bc1c85754448f67
---
libavcodec/hevcpred_template.c | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/libavcodec/hevcpred_template.c b/libavcodec/hevcpred_template.c
index 8e80f81..53b9c59 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) {
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