[FFmpeg-devel] [PATCH 20/21] aarch64: hevc: Produce plain neon versions of qpel_uni_w_hv

["Martin Storsjö" <martin@martin.st>]

As the plain neon qpel_h functions process two rows at a time,
we need to allocate storage for h+8 rows instead of h+7.

AWS Graviton 3:
put_hevc_qpel_uni_w_hv4_8_c: 422.2
put_hevc_qpel_uni_w_hv4_8_neon: 140.7
put_hevc_qpel_uni_w_hv4_8_i8mm: 100.7
put_hevc_qpel_uni_w_hv8_8_c: 1208.0
put_hevc_qpel_uni_w_hv8_8_neon: 268.2
put_hevc_qpel_uni_w_hv8_8_i8mm: 261.5
put_hevc_qpel_uni_w_hv16_8_c: 4297.2
put_hevc_qpel_uni_w_hv16_8_neon: 802.2
put_hevc_qpel_uni_w_hv16_8_i8mm: 731.2
put_hevc_qpel_uni_w_hv32_8_c: 15518.5
put_hevc_qpel_uni_w_hv32_8_neon: 3085.2
put_hevc_qpel_uni_w_hv32_8_i8mm: 2783.2
put_hevc_qpel_uni_w_hv64_8_c: 57254.5
put_hevc_qpel_uni_w_hv64_8_neon: 11787.5
put_hevc_qpel_uni_w_hv64_8_i8mm: 10659.0
---
 libavcodec/aarch64/hevcdsp_init_aarch64.c |  6 +++
 libavcodec/aarch64/hevcdsp_qpel_neon.S    | 47 +++++++++++++++--------
 2 files changed, 37 insertions(+), 16 deletions(-)

diff --git a/libavcodec/aarch64/hevcdsp_init_aarch64.c b/libavcodec/aarch64/hevcdsp_init_aarch64.c
index 0531db027b..e9ee901322 100644
--- a/libavcodec/aarch64/hevcdsp_init_aarch64.c
+++ b/libavcodec/aarch64/hevcdsp_init_aarch64.c
@@ -305,6 +305,11 @@ NEON8_FNPROTO(epel_uni_w_hv, (uint8_t *_dst,  ptrdiff_t _dststride,
         int height, int denom, int wx, int ox,
         intptr_t mx, intptr_t my, int width), _i8mm);
 
+NEON8_FNPROTO_PARTIAL_5(qpel_uni_w_hv, (uint8_t *_dst,  ptrdiff_t _dststride,
+        const uint8_t *_src, ptrdiff_t _srcstride,
+        int height, int denom, int wx, int ox,
+        intptr_t mx, intptr_t my, int width),);
+
 NEON8_FNPROTO_PARTIAL_5(qpel_uni_w_hv, (uint8_t *_dst,  ptrdiff_t _dststride,
         const uint8_t *_src, ptrdiff_t _srcstride,
         int height, int denom, int wx, int ox,
@@ -446,6 +451,7 @@ av_cold void ff_hevc_dsp_init_aarch64(HEVCDSPContext *c, const int bit_depth)
 
         NEON8_FNASSIGN(c->put_hevc_qpel, 1, 1, qpel_hv,);
         NEON8_FNASSIGN(c->put_hevc_qpel_uni, 1, 1, qpel_uni_hv,);
+        NEON8_FNASSIGN_PARTIAL_5(c->put_hevc_qpel_uni_w, 1, 1, qpel_uni_w_hv,);
 
         if (have_i8mm(cpu_flags)) {
             NEON8_FNASSIGN(c->put_hevc_epel, 0, 1, epel_h, _i8mm);
diff --git a/libavcodec/aarch64/hevcdsp_qpel_neon.S b/libavcodec/aarch64/hevcdsp_qpel_neon.S
index f285ab7461..df7032b692 100644
--- a/libavcodec/aarch64/hevcdsp_qpel_neon.S
+++ b/libavcodec/aarch64/hevcdsp_qpel_neon.S
@@ -4164,7 +4164,7 @@ qpel_hv neon_i8mm
 DISABLE_I8MM
 #endif
 
-.macro QPEL_UNI_W_HV_HEADER width
+.macro QPEL_UNI_W_HV_HEADER width, suffix
         ldp             x14, x15, [sp]          // mx, my
         ldr             w13, [sp, #16]          // width
         stp             x19, x30, [sp, #-80]!
@@ -4173,7 +4173,7 @@ DISABLE_I8MM
         stp             x24, x25, [sp, #48]
         stp             x26, x27, [sp, #64]
         mov             x19, sp
-        mov             x11, #9088
+        mov             x11, #(MAX_PB_SIZE*(MAX_PB_SIZE+8)*2)
         sub             sp, sp, x11
         mov             x20, x0
         mov             x21, x1
@@ -4190,7 +4190,16 @@ DISABLE_I8MM
         mov             w26, #-6
         sub             w26, w26, w5            // -shift
         mov             w27, w13                // width
-        bl              X(ff_hevc_put_hevc_qpel_h\width\()_8_neon_i8mm)
+.ifc \suffix, neon
+.if \width >= 32
+        mov             w6,  #\width
+        bl              X(ff_hevc_put_hevc_qpel_h32_8_neon)
+.else
+        bl              X(ff_hevc_put_hevc_qpel_h\width\()_8_\suffix)
+.endif
+.else
+        bl              X(ff_hevc_put_hevc_qpel_h\width\()_8_\suffix)
+.endif
         movrel          x9, qpel_filters
         add             x9, x9, x23, lsl #3
         ld1             {v0.8b}, [x9]
@@ -4552,33 +4561,39 @@ function hevc_put_hevc_qpel_uni_w_hv16_8_end_neon
         ret
 endfunc
 
-#if HAVE_I8MM
-ENABLE_I8MM
-
-function ff_hevc_put_hevc_qpel_uni_w_hv4_8_neon_i8mm, export=1
-        QPEL_UNI_W_HV_HEADER 4
+.macro qpel_uni_w_hv suffix
+function ff_hevc_put_hevc_qpel_uni_w_hv4_8_\suffix, export=1
+        QPEL_UNI_W_HV_HEADER 4, \suffix
         b               hevc_put_hevc_qpel_uni_w_hv4_8_end_neon
 endfunc
 
-function ff_hevc_put_hevc_qpel_uni_w_hv8_8_neon_i8mm, export=1
-        QPEL_UNI_W_HV_HEADER 8
+function ff_hevc_put_hevc_qpel_uni_w_hv8_8_\suffix, export=1
+        QPEL_UNI_W_HV_HEADER 8, \suffix
         b               hevc_put_hevc_qpel_uni_w_hv8_8_end_neon
 endfunc
 
-function ff_hevc_put_hevc_qpel_uni_w_hv16_8_neon_i8mm, export=1
-        QPEL_UNI_W_HV_HEADER 16
+function ff_hevc_put_hevc_qpel_uni_w_hv16_8_\suffix, export=1
+        QPEL_UNI_W_HV_HEADER 16, \suffix
         b               hevc_put_hevc_qpel_uni_w_hv16_8_end_neon
 endfunc
 
-function ff_hevc_put_hevc_qpel_uni_w_hv32_8_neon_i8mm, export=1
-        QPEL_UNI_W_HV_HEADER 32
+function ff_hevc_put_hevc_qpel_uni_w_hv32_8_\suffix, export=1
+        QPEL_UNI_W_HV_HEADER 32, \suffix
         b               hevc_put_hevc_qpel_uni_w_hv16_8_end_neon
 endfunc
 
-function ff_hevc_put_hevc_qpel_uni_w_hv64_8_neon_i8mm, export=1
-        QPEL_UNI_W_HV_HEADER 64
+function ff_hevc_put_hevc_qpel_uni_w_hv64_8_\suffix, export=1
+        QPEL_UNI_W_HV_HEADER 64, \suffix
         b               hevc_put_hevc_qpel_uni_w_hv16_8_end_neon
 endfunc
+.endm
+
+qpel_uni_w_hv neon
+
+#if HAVE_I8MM
+ENABLE_I8MM
+
+qpel_uni_w_hv neon_i8mm
 
 DISABLE_I8MM
 #endif
-- 
2.39.3 (Apple Git-146)

_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel

To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".