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authorMartin Storsjö <martin@martin.st>2016-11-14 12:32:19 +0200
committerRonald S. Bultje <rsbultje@gmail.com>2016-11-15 15:10:03 -0500
commit6409e9b6ccde39895a93f48212078e6c0872f8e7 (patch)
treef29f64d67dba14ca745eb1ac46b289aff5cb7852 /libavcodec/vp9dsp.c
parent2baf36caed98cfdc7f6a2086fbf26f1a172f16cf (diff)
vp9dsp: Deduplicate the subpel filters
Make them aligned, to allow efficient access to them from simd. This is an adapted cherry-pick from libav commit a4cfcddcb0f76e837d5abc06840c2b26c0e8aefc. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
Diffstat (limited to 'libavcodec/vp9dsp.c')
-rw-r--r--libavcodec/vp9dsp.c56
1 files changed, 56 insertions, 0 deletions
diff --git a/libavcodec/vp9dsp.c b/libavcodec/vp9dsp.c
index 54e77e267b..6dd49c86ab 100644
--- a/libavcodec/vp9dsp.c
+++ b/libavcodec/vp9dsp.c
@@ -25,6 +25,62 @@
#include "libavutil/common.h"
#include "vp9dsp.h"
+const DECLARE_ALIGNED(16, int16_t, ff_vp9_subpel_filters)[3][16][8] = {
+ [FILTER_8TAP_REGULAR] = {
+ { 0, 0, 0, 128, 0, 0, 0, 0 },
+ { 0, 1, -5, 126, 8, -3, 1, 0 },
+ { -1, 3, -10, 122, 18, -6, 2, 0 },
+ { -1, 4, -13, 118, 27, -9, 3, -1 },
+ { -1, 4, -16, 112, 37, -11, 4, -1 },
+ { -1, 5, -18, 105, 48, -14, 4, -1 },
+ { -1, 5, -19, 97, 58, -16, 5, -1 },
+ { -1, 6, -19, 88, 68, -18, 5, -1 },
+ { -1, 6, -19, 78, 78, -19, 6, -1 },
+ { -1, 5, -18, 68, 88, -19, 6, -1 },
+ { -1, 5, -16, 58, 97, -19, 5, -1 },
+ { -1, 4, -14, 48, 105, -18, 5, -1 },
+ { -1, 4, -11, 37, 112, -16, 4, -1 },
+ { -1, 3, -9, 27, 118, -13, 4, -1 },
+ { 0, 2, -6, 18, 122, -10, 3, -1 },
+ { 0, 1, -3, 8, 126, -5, 1, 0 },
+ }, [FILTER_8TAP_SHARP] = {
+ { 0, 0, 0, 128, 0, 0, 0, 0 },
+ { -1, 3, -7, 127, 8, -3, 1, 0 },
+ { -2, 5, -13, 125, 17, -6, 3, -1 },
+ { -3, 7, -17, 121, 27, -10, 5, -2 },
+ { -4, 9, -20, 115, 37, -13, 6, -2 },
+ { -4, 10, -23, 108, 48, -16, 8, -3 },
+ { -4, 10, -24, 100, 59, -19, 9, -3 },
+ { -4, 11, -24, 90, 70, -21, 10, -4 },
+ { -4, 11, -23, 80, 80, -23, 11, -4 },
+ { -4, 10, -21, 70, 90, -24, 11, -4 },
+ { -3, 9, -19, 59, 100, -24, 10, -4 },
+ { -3, 8, -16, 48, 108, -23, 10, -4 },
+ { -2, 6, -13, 37, 115, -20, 9, -4 },
+ { -2, 5, -10, 27, 121, -17, 7, -3 },
+ { -1, 3, -6, 17, 125, -13, 5, -2 },
+ { 0, 1, -3, 8, 127, -7, 3, -1 },
+ }, [FILTER_8TAP_SMOOTH] = {
+ { 0, 0, 0, 128, 0, 0, 0, 0 },
+ { -3, -1, 32, 64, 38, 1, -3, 0 },
+ { -2, -2, 29, 63, 41, 2, -3, 0 },
+ { -2, -2, 26, 63, 43, 4, -4, 0 },
+ { -2, -3, 24, 62, 46, 5, -4, 0 },
+ { -2, -3, 21, 60, 49, 7, -4, 0 },
+ { -1, -4, 18, 59, 51, 9, -4, 0 },
+ { -1, -4, 16, 57, 53, 12, -4, -1 },
+ { -1, -4, 14, 55, 55, 14, -4, -1 },
+ { -1, -4, 12, 53, 57, 16, -4, -1 },
+ { 0, -4, 9, 51, 59, 18, -4, -1 },
+ { 0, -4, 7, 49, 60, 21, -3, -2 },
+ { 0, -4, 5, 46, 62, 24, -3, -2 },
+ { 0, -4, 4, 43, 63, 26, -2, -2 },
+ { 0, -3, 2, 41, 63, 29, -2, -2 },
+ { 0, -3, 1, 38, 64, 32, -1, -3 },
+ }
+};
+
+
av_cold void ff_vp9dsp_init(VP9DSPContext *dsp, int bpp, int bitexact)
{
if (bpp == 8) {