Add macros for dual scalar half->single multiply and accumulate
Add macro for shift, saturate and shorten single to byte
Add filter constants
Signed-off-by: John Cox <j...@kynesim.co.uk>
---
libavfilter/aarch64/vf_bwdif_neon.S | 53 +++++++++++++++++++++++++++++
1 file changed, 53 insertions(+)
diff --git a/libavfilter/aarch64/vf_bwdif_neon.S
b/libavfilter/aarch64/vf_bwdif_neon.S
index 639ab22998..c2f5eb1f73 100644
--- a/libavfilter/aarch64/vf_bwdif_neon.S
+++ b/libavfilter/aarch64/vf_bwdif_neon.S
@@ -23,3 +23,56 @@
#include "libavutil/aarch64/asm.S"
+// Space taken on the stack by an int (32-bit)
+#ifdef __APPLE__
+.set SP_INT, 4
+#else
+.set SP_INT, 8
+#endif
+
+.macro SQSHRUNN b, s0, s1, s2, s3, n
+ sqshrun \s0\().4h, \s0\().4s, #\n - 8
+ sqshrun2 \s0\().8h, \s1\().4s, #\n - 8
+ sqshrun \s1\().4h, \s2\().4s, #\n - 8
+ sqshrun2 \s1\().8h, \s3\().4s, #\n - 8
+ uzp2 \b\().16b, \s0\().16b, \s1\().16b
+.endm
+
+.macro SMULL4K a0, a1, a2, a3, s0, s1, k
+ smull \a0\().4s, \s0\().4h, \k
+ smull2 \a1\().4s, \s0\().8h, \k
+ smull \a2\().4s, \s1\().4h, \k
+ smull2 \a3\().4s, \s1\().8h, \k
+.endm
+
+.macro UMULL4K a0, a1, a2, a3, s0, s1, k
+ umull \a0\().4s, \s0\().4h, \k
+ umull2 \a1\().4s, \s0\().8h, \k
+ umull \a2\().4s, \s1\().4h, \k
+ umull2 \a3\().4s, \s1\().8h, \k
+.endm
+
+.macro UMLAL4K a0, a1, a2, a3, s0, s1, k
+ umlal \a0\().4s, \s0\().4h, \k
+ umlal2 \a1\().4s, \s0\().8h, \k
+ umlal \a2\().4s, \s1\().4h, \k
+ umlal2 \a3\().4s, \s1\().8h, \k
+.endm
+
+.macro UMLSL4K a0, a1, a2, a3, s0, s1, k
+ umlsl \a0\().4s, \s0\().4h, \k
+ umlsl2 \a1\().4s, \s0\().8h, \k
+ umlsl \a2\().4s, \s1\().4h, \k
+ umlsl2 \a3\().4s, \s1\().8h, \k
+.endm
+
+// static const uint16_t coef_lf[2] = { 4309, 213 };
+// static const uint16_t coef_hf[3] = { 5570, 3801, 1016 };
+// static const uint16_t coef_sp[2] = { 5077, 981 };
+
+ .balign 16
+coeffs:
+ .hword 4309 * 4, 213 * 4 // lf[0]*4 = v0.h[0]
+ .hword 5570, 3801, 1016, -3801 // hf[0] = v0.h[2],
-hf[1] = v0.h[5]
+ .hword 5077, 981 // sp[0] = v0.h[6]
+
--
2.39.2
_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
To unsubscribe, visit link above, or email
ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
