shithub: libvpx

Download patch

ref: c26a9ecaa21f41156afafee2576a2afed7d9e284
parent: 7cdcfee82ca6ff6460a7011ee0fb4b7fe824e5b9
author: Ronald S. Bultje <[email protected]>
date: Wed Sep 30 14:44:37 EDT 2015

vp8: change build_intra4x4_predictors() to use vpx_dsp.

I've added a few new functions (d45e, d63e, he, ve) to cover the
filtered h/v 4x4 predictors that are vp8-specific, the "correct"
d45 with the correctly filtered bottom-right pixel (as opposed to
the unfiltered version in vp9), and the "broken" d63 with weirdly
filtered bottom-right pixels (which is correctly filtered in vp9).

There may be a minor performance impact on all systems because we
have to do an extra copy of the Above pixel array to incorporate
the topleft pixel in the same array (thus fitting the vpx_dsp API).
In addition, armv6 will have a more serious performance impact b/c
I removed the armv6/vp8-specific assembly. I'm not sure anyone
cares...

Change-Id: I7f9e5ebee11d8e21aca2cd517a69eefc181b2e86

--- a/vp8/common/arm/armv6/intra4x4_predict_v6.asm
+++ /dev/null
@@ -1,611 +1,0 @@
-;
-;  Copyright (c) 2011 The WebM project authors. All Rights Reserved.
-;
-;  Use of this source code is governed by a BSD-style license
-;  that can be found in the LICENSE file in the root of the source
-;  tree. An additional intellectual property rights grant can be found
-;  in the file PATENTS.  All contributing project authors may
-;  be found in the AUTHORS file in the root of the source tree.
-;
-
-
-    EXPORT  |vp8_intra4x4_predict_armv6|
-
-    ARM
-    REQUIRE8
-    PRESERVE8
-
-    AREA ||.text||, CODE, READONLY, ALIGN=2
-
-
-;void vp8_intra4x4_predict_armv6(unsigned char *Above, unsigned char *yleft,
-;                                B_PREDICTION_MODE left_stride, int b_mode,
-;                                unsigned char *dst, int dst_stride,
-;                                unsigned char top_left)
-
-; r0: *Above
-; r1: *yleft
-; r2: left_stride
-; r3: b_mode
-; sp + #40: dst
-; sp + #44: dst_stride
-; sp + #48: top_left
-|vp8_intra4x4_predict_armv6| PROC
-    push        {r4-r12, lr}
-
-    cmp         r3, #10
-    addlt       pc, pc, r3, lsl #2       ; position independent switch
-    pop         {r4-r12, pc}             ; default
-    b           b_dc_pred
-    b           b_tm_pred
-    b           b_ve_pred
-    b           b_he_pred
-    b           b_ld_pred
-    b           b_rd_pred
-    b           b_vr_pred
-    b           b_vl_pred
-    b           b_hd_pred
-    b           b_hu_pred
-
-b_dc_pred
-    ; load values
-    ldr         r8, [r0]                 ; Above
-    ldrb        r4, [r1], r2             ; Left[0]
-    mov         r9, #0
-    ldrb        r5, [r1], r2             ; Left[1]
-    ldrb        r6, [r1], r2             ; Left[2]
-    usad8       r12, r8, r9
-    ldrb        r7, [r1]                 ; Left[3]
-
-    ; calculate dc
-    add         r4, r4, r5
-    add         r4, r4, r6
-    add         r4, r4, r7
-    add         r4, r4, r12
-    add         r4, r4, #4
-    ldr         r0, [sp, #44]           ; dst_stride
-    mov         r12, r4, asr #3         ; (expected_dc + 4) >> 3
-
-    add         r12, r12, r12, lsl #8
-    ldr         r3, [sp, #40]           ; dst
-    add         r12, r12, r12, lsl #16
-
-    ; store values
-    str         r12, [r3], r0
-    str         r12, [r3], r0
-    str         r12, [r3], r0
-    str         r12, [r3]
-
-    pop        {r4-r12, pc}
-
-b_tm_pred
-    ldr         r8, [r0]                ; Above
-    ldrb        r9, [sp, #48]           ; top_left
-    ldrb        r4, [r1], r2            ; Left[0]
-    ldrb        r5, [r1], r2            ; Left[1]
-    ldrb        r6, [r1], r2            ; Left[2]
-    ldrb        r7, [r1]                ; Left[3]
-    ldr         r0, [sp, #44]           ; dst_stride
-    ldr         r3, [sp, #40]           ; dst
-
-    add         r9, r9, r9, lsl #16     ; [tl|tl]
-    uxtb16      r10, r8                 ; a[2|0]
-    uxtb16      r11, r8, ror #8         ; a[3|1]
-    ssub16      r10, r10, r9            ; a[2|0] - [tl|tl]
-    ssub16      r11, r11, r9            ; a[3|1] - [tl|tl]
-
-    add         r4, r4, r4, lsl #16     ; l[0|0]
-    add         r5, r5, r5, lsl #16     ; l[1|1]
-    add         r6, r6, r6, lsl #16     ; l[2|2]
-    add         r7, r7, r7, lsl #16     ; l[3|3]
-
-    sadd16      r1, r4, r10             ; l[0|0] + a[2|0] - [tl|tl]
-    sadd16      r2, r4, r11             ; l[0|0] + a[3|1] - [tl|tl]
-    usat16      r1, #8, r1
-    usat16      r2, #8, r2
-
-    sadd16      r4, r5, r10             ; l[1|1] + a[2|0] - [tl|tl]
-    sadd16      r5, r5, r11             ; l[1|1] + a[3|1] - [tl|tl]
-
-    add         r12, r1, r2, lsl #8     ; [3|2|1|0]
-    str         r12, [r3], r0
-
-    usat16      r4, #8, r4
-    usat16      r5, #8, r5
-
-    sadd16      r1, r6, r10             ; l[2|2] + a[2|0] - [tl|tl]
-    sadd16      r2, r6, r11             ; l[2|2] + a[3|1] - [tl|tl]
-
-    add         r12, r4, r5, lsl #8     ; [3|2|1|0]
-    str         r12, [r3], r0
-
-    usat16      r1, #8, r1
-    usat16      r2, #8, r2
-
-    sadd16      r4, r7, r10             ; l[3|3] + a[2|0] - [tl|tl]
-    sadd16      r5, r7, r11             ; l[3|3] + a[3|1] - [tl|tl]
-
-    add         r12, r1, r2, lsl #8     ; [3|2|1|0]
-
-    usat16      r4, #8, r4
-    usat16      r5, #8, r5
-
-    str         r12, [r3], r0
-
-    add         r12, r4, r5, lsl #8     ; [3|2|1|0]
-    str         r12, [r3]
-
-    pop        {r4-r12, pc}
-
-b_ve_pred
-    ldr         r8, [r0]                ; a[3|2|1|0]
-    ldr         r11, c00FF00FF
-    ldrb        r9, [sp, #48]           ; top_left
-    ldrb        r10, [r0, #4]           ; a[4]
-
-    ldr         r0, c00020002
-
-    uxtb16      r4, r8                  ; a[2|0]
-    uxtb16      r5, r8, ror #8          ; a[3|1]
-    ldr         r2, [sp, #44]           ; dst_stride
-    pkhbt       r9, r9, r5, lsl #16     ; a[1|-1]
-
-    add         r9, r9, r4, lsl #1      ;[a[1]+2*a[2]       | tl+2*a[0]       ]
-    uxtab16     r9, r9, r5              ;[a[1]+2*a[2]+a[3]  | tl+2*a[0]+a[1]  ]
-    ldr         r3, [sp, #40]           ; dst
-    uxtab16     r9, r9, r0              ;[a[1]+2*a[2]+a[3]+2| tl+2*a[0]+a[1]+2]
-
-    add         r0, r0, r10, lsl #16    ;[a[4]+2            |                 2]
-    add         r0, r0, r4, asr #16     ;[a[4]+2            |            a[2]+2]
-    add         r0, r0, r5, lsl #1      ;[a[4]+2*a[3]+2     |     a[2]+2*a[1]+2]
-    uadd16      r4, r4, r0              ;[a[4]+2*a[3]+a[2]+2|a[2]+2*a[1]+a[0]+2]
-
-    and         r9, r11, r9, asr #2
-    and         r4, r11, r4, asr #2
-    add         r9, r9, r4, lsl #8
-
-    ; store values
-    str         r9, [r3], r2
-    str         r9, [r3], r2
-    str         r9, [r3], r2
-    str         r9, [r3]
-
-    pop        {r4-r12, pc}
-
-
-b_he_pred
-    ldrb        r4, [r1], r2            ; Left[0]
-    ldrb        r8, [sp, #48]           ; top_left
-    ldrb        r5, [r1], r2            ; Left[1]
-    ldrb        r6, [r1], r2            ; Left[2]
-    ldrb        r7, [r1]                ; Left[3]
-
-    add         r8, r8, r4              ; tl   + l[0]
-    add         r9, r4, r5              ; l[0] + l[1]
-    add         r10, r5, r6             ; l[1] + l[2]
-    add         r11, r6, r7             ; l[2] + l[3]
-
-    mov         r0, #2<<14
-
-    add         r8, r8, r9              ; tl + 2*l[0] + l[1]
-    add         r4, r9, r10             ; l[0] + 2*l[1] + l[2]
-    add         r5, r10, r11            ; l[1] + 2*l[2] + l[3]
-    add         r6, r11, r7, lsl #1     ; l[2] + 2*l[3] + l[3]
-
-
-    add         r8, r0, r8, lsl #14     ; (tl + 2*l[0] + l[1])>>2 in top half
-    add         r9, r0, r4, lsl #14     ; (l[0] + 2*l[1] + l[2])>>2 in top half
-    add         r10,r0, r5, lsl #14     ; (l[1] + 2*l[2] + l[3])>>2 in top half
-    add         r11,r0, r6, lsl #14     ; (l[2] + 2*l[3] + l[3])>>2 in top half
-
-    pkhtb       r8, r8, r8, asr #16     ; l[-|0|-|0]
-    pkhtb       r9, r9, r9, asr #16     ; l[-|1|-|1]
-    pkhtb       r10, r10, r10, asr #16  ; l[-|2|-|2]
-    pkhtb       r11, r11, r11, asr #16  ; l[-|3|-|3]
-
-    ldr         r0, [sp, #44]           ; dst_stride
-    ldr         r3, [sp, #40]           ; dst
-
-    add         r8, r8, r8, lsl #8      ; l[0|0|0|0]
-    add         r9, r9, r9, lsl #8      ; l[1|1|1|1]
-    add         r10, r10, r10, lsl #8   ; l[2|2|2|2]
-    add         r11, r11, r11, lsl #8   ; l[3|3|3|3]
-
-    ; store values
-    str         r8, [r3], r0
-    str         r9, [r3], r0
-    str         r10, [r3], r0
-    str         r11, [r3]
-
-    pop        {r4-r12, pc}
-
-b_ld_pred
-    ldr         r4, [r0]                ; Above[0-3]
-    ldr         r12, c00020002
-    ldr         r5, [r0, #4]            ; Above[4-7]
-    ldr         lr,  c00FF00FF
-
-    uxtb16      r6, r4                  ; a[2|0]
-    uxtb16      r7, r4, ror #8          ; a[3|1]
-    uxtb16      r8, r5                  ; a[6|4]
-    uxtb16      r9, r5, ror #8          ; a[7|5]
-    pkhtb       r10, r6, r8             ; a[2|4]
-    pkhtb       r11, r7, r9             ; a[3|5]
-
-    add         r4, r6, r7, lsl #1      ; [a2+2*a3      |      a0+2*a1]
-    add         r4, r4, r10, ror #16    ; [a2+2*a3+a4   |   a0+2*a1+a2]
-    uxtab16     r4, r4, r12             ; [a2+2*a3+a4+2 | a0+2*a1+a2+2]
-
-    add         r5, r7, r10, ror #15    ; [a3+2*a4      |      a1+2*a2]
-    add         r5, r5, r11, ror #16    ; [a3+2*a4+a5   |   a1+2*a2+a3]
-    uxtab16     r5, r5, r12             ; [a3+2*a4+a5+2 | a1+2*a2+a3+2]
-
-    pkhtb       r7, r9, r8, asr #16
-    add         r6, r8, r9, lsl #1      ; [a6+2*a7      |      a4+2*a5]
-    uadd16      r6, r6, r7              ; [a6+2*a7+a7   |   a4+2*a5+a6]
-    uxtab16     r6, r6, r12             ; [a6+2*a7+a7+2 | a4+2*a5+a6+2]
-
-    uxth        r7, r9                  ; [                         a5]
-    add         r7, r7, r8, asr #15     ; [                    a5+2*a6]
-    add         r7, r7, r9, asr #16     ; [                 a5+2*a6+a7]
-    uxtah       r7, r7, r12             ; [               a5+2*a6+a7+2]
-
-    ldr         r0, [sp, #44]           ; dst_stride
-    ldr         r3, [sp, #40]           ; dst
-
-    ; scale down
-    and         r4, lr, r4, asr #2
-    and         r5, lr, r5, asr #2
-    and         r6, lr, r6, asr #2
-    mov         r7, r7, asr #2
-
-    add         r8, r4, r5, lsl #8      ; [3|2|1|0]
-    str         r8, [r3], r0
-
-    mov         r9, r8, lsr #8
-    add         r9, r9, r6, lsl #24     ; [4|3|2|1]
-    str         r9, [r3], r0
-
-    mov         r10, r9, lsr #8
-    add         r10, r10, r7, lsl #24   ; [5|4|3|2]
-    str         r10, [r3], r0
-
-    mov         r6, r6, lsr #16
-    mov         r11, r10, lsr #8
-    add         r11, r11, r6, lsl #24   ; [6|5|4|3]
-    str         r11, [r3]
-
-    pop        {r4-r12, pc}
-
-b_rd_pred
-    ldrb        r7, [r1], r2            ; l[0] = pp[3]
-    ldr         lr, [r0]                ; Above = pp[8|7|6|5]
-    ldrb        r8, [sp, #48]           ; tl   = pp[4]
-    ldrb        r6, [r1], r2            ; l[1] = pp[2]
-    ldrb        r5, [r1], r2            ; l[2] = pp[1]
-    ldrb        r4, [r1], r2            ; l[3] = pp[0]
-
-
-    uxtb16      r9, lr                  ; p[7|5]
-    uxtb16      r10, lr, ror #8         ; p[8|6]
-    add         r4, r4, r6, lsl #16     ; p[2|0]
-    add         r5, r5, r7, lsl #16     ; p[3|1]
-    add         r6, r6, r8, lsl #16     ; p[4|2]
-    pkhbt       r7, r7, r9, lsl #16     ; p[5|3]
-    pkhbt       r8, r8, r10, lsl #16    ; p[6|4]
-
-    ldr         r12, c00020002
-    ldr         lr,  c00FF00FF
-
-    add         r4, r4, r5, lsl #1      ; [p2+2*p3      |      p0+2*p1]
-    add         r4, r4, r6              ; [p2+2*p3+p4   |   p0+2*p1+p2]
-    uxtab16     r4, r4, r12             ; [p2+2*p3+p4+2 | p0+2*p1+p2+2]
-
-    add         r5, r5, r6, lsl #1      ; [p3+2*p4      |      p1+2*p2]
-    add         r5, r5, r7              ; [p3+2*p4+p5   |   p1+2*p2+p3]
-    uxtab16     r5, r5, r12             ; [p3+2*p4+p5+2 | p1+2*p2+p3+2]
-
-    add         r6, r7, r8, lsl #1      ; [p5+2*p6      |      p3+2*p4]
-    add         r6, r6, r9              ; [p5+2*p6+p7   |   p3+2*p4+p5]
-    uxtab16     r6, r6, r12             ; [p5+2*p6+p7+2 | p3+2*p4+p5+2]
-
-    add         r7, r8, r9, lsl #1      ; [p6+2*p7      |      p4+2*p5]
-    add         r7, r7, r10             ; [p6+2*p7+p8   |   p4+2*p5+p6]
-    uxtab16     r7, r7, r12             ; [p6+2*p7+p8+2 | p4+2*p5+p6+2]
-
-    ldr         r0, [sp, #44]           ; dst_stride
-    ldr         r3, [sp, #40]           ; dst
-
-    ; scale down
-    and         r7, lr, r7, asr #2
-    and         r6, lr, r6, asr #2
-    and         r5, lr, r5, asr #2
-    and         r4, lr, r4, asr #2
-
-    add         r8, r6, r7, lsl #8      ; [6|5|4|3]
-    str         r8, [r3], r0
-
-    mov         r9, r8, lsl #8          ; [5|4|3|-]
-    uxtab       r9, r9, r4, ror #16     ; [5|4|3|2]
-    str         r9, [r3], r0
-
-    mov         r10, r9, lsl #8         ; [4|3|2|-]
-    uxtab       r10, r10, r5            ; [4|3|2|1]
-    str         r10, [r3], r0
-
-    mov         r11, r10, lsl #8        ; [3|2|1|-]
-    uxtab       r11, r11, r4            ; [3|2|1|0]
-    str         r11, [r3]
-
-    pop        {r4-r12, pc}
-
-b_vr_pred
-    ldrb        r7, [r1], r2            ; l[0] = pp[3]
-    ldr         lr, [r0]                ; Above = pp[8|7|6|5]
-    ldrb        r8, [sp, #48]           ; tl   = pp[4]
-    ldrb        r6, [r1], r2            ; l[1] = pp[2]
-    ldrb        r5, [r1], r2            ; l[2] = pp[1]
-    ldrb        r4, [r1]                ; l[3] = pp[0]
-
-    add         r5, r5, r7, lsl #16     ; p[3|1]
-    add         r6, r6, r8, lsl #16     ; p[4|2]
-    uxtb16      r9, lr                  ; p[7|5]
-    uxtb16      r10, lr, ror #8         ; p[8|6]
-    pkhbt       r7, r7, r9, lsl #16     ; p[5|3]
-    pkhbt       r8, r8, r10, lsl #16    ; p[6|4]
-
-    ldr         r4,  c00010001
-    ldr         r12, c00020002
-    ldr         lr,  c00FF00FF
-
-    add         r5, r5, r6, lsl #1      ; [p3+2*p4      |      p1+2*p2]
-    add         r5, r5, r7              ; [p3+2*p4+p5   |   p1+2*p2+p3]
-    uxtab16     r5, r5, r12             ; [p3+2*p4+p5+2 | p1+2*p2+p3+2]
-
-    add         r6, r6, r7, lsl #1      ; [p4+2*p5      |      p2+2*p3]
-    add         r6, r6, r8              ; [p4+2*p5+p6   |   p2+2*p3+p4]
-    uxtab16     r6, r6, r12             ; [p4+2*p5+p6+2 | p2+2*p3+p4+2]
-
-    uadd16      r11, r8, r9             ; [p6+p7        |        p4+p5]
-    uhadd16     r11, r11, r4            ; [(p6+p7+1)>>1 | (p4+p5+1)>>1]
-                                        ; [F|E]
-
-    add         r7, r7, r8, lsl #1      ; [p5+2*p6      |      p3+2*p4]
-    add         r7, r7, r9              ; [p5+2*p6+p7   |   p3+2*p4+p5]
-    uxtab16     r7, r7, r12             ; [p5+2*p6+p7+2 | p3+2*p4+p5+2]
-
-    uadd16      r2, r9, r10             ; [p7+p8        |        p5+p6]
-    uhadd16     r2, r2, r4              ; [(p7+p8+1)>>1 | (p5+p6+1)>>1]
-                                        ; [J|I]
-
-    add         r8, r8, r9, lsl #1      ; [p6+2*p7      |      p4+2*p5]
-    add         r8, r8, r10             ; [p6+2*p7+p8   |   p4+2*p5+p6]
-    uxtab16     r8, r8, r12             ; [p6+2*p7+p8+2 | p4+2*p5+p6+2]
-
-    ldr         r0, [sp, #44]           ; dst_stride
-    ldr         r3, [sp, #40]           ; dst
-
-    ; scale down
-    and         r5, lr, r5, asr #2      ; [B|A]
-    and         r6, lr, r6, asr #2      ; [D|C]
-    and         r7, lr, r7, asr #2      ; [H|G]
-    and         r8, lr, r8, asr #2      ; [L|K]
-
-    add         r12, r11, r2, lsl #8    ; [J|F|I|E]
-    str         r12, [r3], r0
-
-    add         r12, r7, r8, lsl #8     ; [L|H|K|G]
-    str         r12, [r3], r0
-
-    pkhbt       r2, r6, r2, lsl #16     ; [-|I|-|C]
-    add         r2, r2, r11, lsl #8     ; [F|I|E|C]
-
-    pkhtb       r12, r6, r5             ; [-|D|-|A]
-    pkhtb       r10, r7, r5, asr #16    ; [-|H|-|B]
-    str         r2, [r3], r0
-    add         r12, r12, r10, lsl #8   ; [H|D|B|A]
-    str         r12, [r3]
-
-    pop        {r4-r12, pc}
-
-b_vl_pred
-    ldr         r4, [r0]                ; [3|2|1|0] = Above[0-3]
-    ldr         r12, c00020002
-    ldr         r5, [r0, #4]            ; [7|6|5|4] = Above[4-7]
-    ldr         lr,  c00FF00FF
-    ldr         r2,  c00010001
-
-    mov         r0, r4, lsr #16         ; [-|-|3|2]
-    add         r0, r0, r5, lsl #16     ; [5|4|3|2]
-    uxtb16      r6, r4                  ; [2|0]
-    uxtb16      r7, r4, ror #8          ; [3|1]
-    uxtb16      r8, r0                  ; [4|2]
-    uxtb16      r9, r0, ror #8          ; [5|3]
-    uxtb16      r10, r5                 ; [6|4]
-    uxtb16      r11, r5, ror #8         ; [7|5]
-
-    uadd16      r4, r6, r7              ; [p2+p3        |        p0+p1]
-    uhadd16     r4, r4, r2              ; [(p2+p3+1)>>1 | (p0+p1+1)>>1]
-                                        ; [B|A]
-
-    add         r5, r6, r7, lsl #1      ; [p2+2*p3      |      p0+2*p1]
-    add         r5, r5, r8              ; [p2+2*p3+p4   |   p0+2*p1+p2]
-    uxtab16     r5, r5, r12             ; [p2+2*p3+p4+2 | p0+2*p1+p2+2]
-
-    uadd16      r6, r7, r8              ; [p3+p4        |        p1+p2]
-    uhadd16     r6, r6, r2              ; [(p3+p4+1)>>1 | (p1+p2+1)>>1]
-                                        ; [F|E]
-
-    add         r7, r7, r8, lsl #1      ; [p3+2*p4      |      p1+2*p2]
-    add         r7, r7, r9              ; [p3+2*p4+p5   |   p1+2*p2+p3]
-    uxtab16     r7, r7, r12             ; [p3+2*p4+p5+2 | p1+2*p2+p3+2]
-
-    add         r8, r8, r9, lsl #1      ; [p4+2*p5      |      p2+2*p3]
-    add         r8, r8, r10             ; [p4+2*p5+p6   |   p2+2*p3+p4]
-    uxtab16     r8, r8, r12             ; [p4+2*p5+p6+2 | p2+2*p3+p4+2]
-
-    add         r9, r9, r10, lsl #1     ; [p5+2*p6      |      p3+2*p4]
-    add         r9, r9, r11             ; [p5+2*p6+p7   |   p3+2*p4+p5]
-    uxtab16     r9, r9, r12             ; [p5+2*p6+p7+2 | p3+2*p4+p5+2]
-
-    ldr         r0, [sp, #44]           ; dst_stride
-    ldr         r3, [sp, #40]           ; dst
-
-    ; scale down
-    and         r5, lr, r5, asr #2      ; [D|C]
-    and         r7, lr, r7, asr #2      ; [H|G]
-    and         r8, lr, r8, asr #2      ; [I|D]
-    and         r9, lr, r9, asr #2      ; [J|H]
-
-    add         r10, r4, r6, lsl #8     ; [F|B|E|A]
-    str         r10, [r3], r0
-
-    add         r5, r5, r7, lsl #8      ; [H|C|G|D]
-    str         r5, [r3], r0
-
-    pkhtb       r12, r8, r4, asr #16    ; [-|I|-|B]
-    pkhtb       r10, r9, r8             ; [-|J|-|D]
-
-    add         r12, r6, r12, lsl #8    ; [I|F|B|E]
-    str         r12, [r3], r0
-
-    add         r10, r7, r10, lsl #8    ; [J|H|D|G]
-    str         r10, [r3]
-
-    pop        {r4-r12, pc}
-
-b_hd_pred
-    ldrb        r7, [r1], r2            ; l[0] = pp[3]
-    ldr         lr, [r0]                ; Above = pp[8|7|6|5]
-    ldrb        r8, [sp, #48]           ; tl   = pp[4]
-    ldrb        r6, [r1], r2            ; l[1] = pp[2]
-    ldrb        r5, [r1], r2            ; l[2] = pp[1]
-    ldrb        r4, [r1]                ; l[3] = pp[0]
-
-    uxtb16      r9, lr                  ; p[7|5]
-    uxtb16      r10, lr, ror #8         ; p[8|6]
-
-    add         r4, r4, r5, lsl #16     ; p[1|0]
-    add         r5, r5, r6, lsl #16     ; p[2|1]
-    add         r6, r6, r7, lsl #16     ; p[3|2]
-    add         r7, r7, r8, lsl #16     ; p[4|3]
-
-    ldr         r12, c00020002
-    ldr         lr,  c00FF00FF
-    ldr         r2,  c00010001
-
-    pkhtb       r8, r7, r9              ; p[4|5]
-    pkhtb       r1, r9, r10             ; p[7|6]
-    pkhbt       r10, r8, r10, lsl #16   ; p[6|5]
-
-    uadd16      r11, r4, r5             ; [p1+p2        |        p0+p1]
-    uhadd16     r11, r11, r2            ; [(p1+p2+1)>>1 | (p0+p1+1)>>1]
-                                        ; [B|A]
-
-    add         r4, r4, r5, lsl #1      ; [p1+2*p2      |      p0+2*p1]
-    add         r4, r4, r6              ; [p1+2*p2+p3   |   p0+2*p1+p2]
-    uxtab16     r4, r4, r12             ; [p1+2*p2+p3+2 | p0+2*p1+p2+2]
-
-    uadd16      r0, r6, r7              ; [p3+p4        |        p2+p3]
-    uhadd16     r0, r0, r2              ; [(p3+p4+1)>>1 | (p2+p3+1)>>1]
-                                        ; [F|E]
-
-    add         r5, r6, r7, lsl #1      ; [p3+2*p4      |      p2+2*p3]
-    add         r5, r5, r8, ror #16     ; [p3+2*p4+p5   |   p2+2*p3+p4]
-    uxtab16     r5, r5, r12             ; [p3+2*p4+p5+2 | p2+2*p3+p4+2]
-
-    add         r6, r12, r8, ror #16    ; [p5+2         |         p4+2]
-    add         r6, r6, r10, lsl #1     ; [p5+2+2*p6    |    p4+2+2*p5]
-    uxtab16     r6, r6, r1              ; [p5+2+2*p6+p7 | p4+2+2*p5+p6]
-
-    ; scale down
-    and         r4, lr, r4, asr #2      ; [D|C]
-    and         r5, lr, r5, asr #2      ; [H|G]
-    and         r6, lr, r6, asr #2      ; [J|I]
-
-    ldr         lr, [sp, #44]           ; dst_stride
-    ldr         r3, [sp, #40]           ; dst
-
-    pkhtb       r2, r0, r6              ; [-|F|-|I]
-    pkhtb       r12, r6, r5, asr #16    ; [-|J|-|H]
-    add         r12, r12, r2, lsl #8    ; [F|J|I|H]
-    add         r2, r0, r5, lsl #8      ; [H|F|G|E]
-    mov         r12, r12, ror #24       ; [J|I|H|F]
-    str         r12, [r3], lr
-
-    mov         r7, r11, asr #16        ; [-|-|-|B]
-    str         r2, [r3], lr
-    add         r7, r7, r0, lsl #16     ; [-|E|-|B]
-    add         r7, r7, r4, asr #8      ; [-|E|D|B]
-    add         r7, r7, r5, lsl #24     ; [G|E|D|B]
-    str         r7, [r3], lr
-
-    add         r5, r11, r4, lsl #8     ; [D|B|C|A]
-    str         r5, [r3]
-
-    pop        {r4-r12, pc}
-
-
-
-b_hu_pred
-    ldrb        r4, [r1], r2            ; Left[0]
-    ldr         r12, c00020002
-    ldrb        r5, [r1], r2            ; Left[1]
-    ldr         lr,  c00FF00FF
-    ldrb        r6, [r1], r2            ; Left[2]
-    ldr         r2,  c00010001
-    ldrb        r7, [r1]                ; Left[3]
-
-    add         r4, r4, r5, lsl #16     ; [1|0]
-    add         r5, r5, r6, lsl #16     ; [2|1]
-    add         r9, r6, r7, lsl #16     ; [3|2]
-
-    uadd16      r8, r4, r5              ; [p1+p2        |        p0+p1]
-    uhadd16     r8, r8, r2              ; [(p1+p2+1)>>1 | (p0+p1+1)>>1]
-                                        ; [B|A]
-
-    add         r4, r4, r5, lsl #1      ; [p1+2*p2      |      p0+2*p1]
-    add         r4, r4, r9              ; [p1+2*p2+p3   |   p0+2*p1+p2]
-    uxtab16     r4, r4, r12             ; [p1+2*p2+p3+2 | p0+2*p1+p2+2]
-    ldr         r2, [sp, #44]           ; dst_stride
-    ldr         r3, [sp, #40]           ; dst
-    and         r4, lr, r4, asr #2      ; [D|C]
-
-    add         r10, r6, r7             ; [p2+p3]
-    add         r11, r10, r7, lsl #1    ; [p2+3*p3]
-    add         r10, r10, #1
-    add         r11, r11, #2
-    mov         r10, r10, asr #1        ; [E]
-    mov         r11, r11, asr #2        ; [F]
-
-    add         r9, r7, r9, asr #8      ; [-|-|G|G]
-    add         r0, r8, r4, lsl #8      ; [D|B|C|A]
-    add         r7, r9, r9, lsl #16     ; [G|G|G|G]
-
-    str         r0, [r3], r2
-
-    mov         r1, r8, asr #16         ; [-|-|-|B]
-    add         r1, r1, r4, asr #8      ; [-|-|D|B]
-    add         r1, r1, r10, lsl #16    ; [-|E|D|B]
-    add         r1, r1, r11, lsl #24    ; [F|E|D|B]
-    str         r1, [r3], r2
-
-    add         r10, r11, lsl #8        ; [-|-|F|E]
-    add         r10, r10, r9, lsl #16   ; [G|G|F|E]
-    str         r10, [r3], r2
-
-    str         r7, [r3]
-
-    pop        {r4-r12, pc}
-
-    ENDP
-
-; constants
-c00010001
-    DCD         0x00010001
-c00020002
-    DCD         0x00020002
-c00FF00FF
-    DCD         0x00FF00FF
-
-    END
--- a/vp8/common/reconintra.c
+++ b/vp8/common/reconintra.c
@@ -16,6 +16,7 @@
 #include "vpx_ports/vpx_once.h"
 #include "blockd.h"
 #include "vp8/common/reconintra.h"
+#include "vp8/common/reconintra4x4.h"
 
 enum {
     SIZE_16,
@@ -43,6 +44,7 @@
 
     INIT_SIZE(16);
     INIT_SIZE(8);
+    vp8_init_intra4x4_predictors_internal();
 }
 
 void vp8_build_intra_predictors_mby_s(MACROBLOCKD *x,
--- a/vp8/common/reconintra4x4.c
+++ b/vp8/common/reconintra4x4.c
@@ -8,290 +8,47 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
+#include <string.h>
 
 #include "vpx_config.h"
+#include "./vpx_dsp_rtcd.h"
 #include "vp8_rtcd.h"
 #include "blockd.h"
 
-void vp8_intra4x4_predict_c(unsigned char *Above,
-                            unsigned char *yleft, int left_stride,
-                            int           _b_mode,
-                            unsigned char *dst, int dst_stride,
-                            unsigned char top_left)
+typedef void (*intra_pred_fn)(uint8_t *dst, ptrdiff_t stride,
+                              const uint8_t *above, const uint8_t *left);
+
+static intra_pred_fn pred[10];
+
+void vp8_init_intra4x4_predictors_internal(void)
 {
-    int i, r, c;
-    B_PREDICTION_MODE b_mode = (B_PREDICTION_MODE)_b_mode;
+    pred[B_DC_PRED] = vpx_dc_predictor_4x4;
+    pred[B_TM_PRED] = vpx_tm_predictor_4x4;
+    pred[B_VE_PRED] = vpx_ve_predictor_4x4;
+    pred[B_HE_PRED] = vpx_he_predictor_4x4;
+    pred[B_LD_PRED] = vpx_d45e_predictor_4x4;
+    pred[B_RD_PRED] = vpx_d135_predictor_4x4;
+    pred[B_VR_PRED] = vpx_d117_predictor_4x4;
+    pred[B_VL_PRED] = vpx_d63e_predictor_4x4;
+    pred[B_HD_PRED] = vpx_d153_predictor_4x4;
+    pred[B_HU_PRED] = vpx_d207_predictor_4x4;
+}
+
+void vp8_intra4x4_predict(unsigned char *above,
+                          unsigned char *yleft, int left_stride,
+                          B_PREDICTION_MODE b_mode,
+                          unsigned char *dst, int dst_stride,
+                          unsigned char top_left)
+{
     unsigned char Left[4];
+    unsigned char Aboveb[12], *Above = Aboveb + 4;
+
     Left[0] = yleft[0];
     Left[1] = yleft[left_stride];
     Left[2] = yleft[2 * left_stride];
     Left[3] = yleft[3 * left_stride];
+    memcpy(Above, above, 8);
+    Above[-1] = top_left;
 
-    switch (b_mode)
-    {
-    case B_DC_PRED:
-    {
-        int expected_dc = 0;
-
-        for (i = 0; i < 4; i++)
-        {
-            expected_dc += Above[i];
-            expected_dc += Left[i];
-        }
-
-        expected_dc = (expected_dc + 4) >> 3;
-
-        for (r = 0; r < 4; r++)
-        {
-            for (c = 0; c < 4; c++)
-            {
-                dst[c] = expected_dc;
-            }
-
-            dst += dst_stride;
-        }
-    }
-    break;
-    case B_TM_PRED:
-    {
-        /* prediction similar to true_motion prediction */
-        for (r = 0; r < 4; r++)
-        {
-            for (c = 0; c < 4; c++)
-            {
-                int pred = Above[c] - top_left + Left[r];
-
-                if (pred < 0)
-                    pred = 0;
-
-                if (pred > 255)
-                    pred = 255;
-
-                dst[c] = pred;
-            }
-
-            dst += dst_stride;
-        }
-    }
-    break;
-
-    case B_VE_PRED:
-    {
-
-        unsigned int ap[4];
-        ap[0] = (top_left  + 2 * Above[0] + Above[1] + 2) >> 2;
-        ap[1] = (Above[0] + 2 * Above[1] + Above[2] + 2) >> 2;
-        ap[2] = (Above[1] + 2 * Above[2] + Above[3] + 2) >> 2;
-        ap[3] = (Above[2] + 2 * Above[3] + Above[4] + 2) >> 2;
-
-        for (r = 0; r < 4; r++)
-        {
-            for (c = 0; c < 4; c++)
-            {
-
-                dst[c] = ap[c];
-            }
-
-            dst += dst_stride;
-        }
-
-    }
-    break;
-
-
-    case B_HE_PRED:
-    {
-
-        unsigned int lp[4];
-        lp[0] = (top_left + 2 * Left[0] + Left[1] + 2) >> 2;
-        lp[1] = (Left[0] + 2 * Left[1] + Left[2] + 2) >> 2;
-        lp[2] = (Left[1] + 2 * Left[2] + Left[3] + 2) >> 2;
-        lp[3] = (Left[2] + 2 * Left[3] + Left[3] + 2) >> 2;
-
-        for (r = 0; r < 4; r++)
-        {
-            for (c = 0; c < 4; c++)
-            {
-                dst[c] = lp[r];
-            }
-
-            dst += dst_stride;
-        }
-    }
-    break;
-    case B_LD_PRED:
-    {
-        unsigned char *ptr = Above;
-        dst[0 * dst_stride + 0] = (ptr[0] + ptr[1] * 2 + ptr[2] + 2) >> 2;
-        dst[0 * dst_stride + 1] =
-            dst[1 * dst_stride + 0] = (ptr[1] + ptr[2] * 2 + ptr[3] + 2) >> 2;
-        dst[0 * dst_stride + 2] =
-            dst[1 * dst_stride + 1] =
-                dst[2 * dst_stride + 0] = (ptr[2] + ptr[3] * 2 + ptr[4] + 2) >> 2;
-        dst[0 * dst_stride + 3] =
-            dst[1 * dst_stride + 2] =
-                dst[2 * dst_stride + 1] =
-                    dst[3 * dst_stride + 0] = (ptr[3] + ptr[4] * 2 + ptr[5] + 2) >> 2;
-        dst[1 * dst_stride + 3] =
-            dst[2 * dst_stride + 2] =
-                dst[3 * dst_stride + 1] = (ptr[4] + ptr[5] * 2 + ptr[6] + 2) >> 2;
-        dst[2 * dst_stride + 3] =
-            dst[3 * dst_stride + 2] = (ptr[5] + ptr[6] * 2 + ptr[7] + 2) >> 2;
-        dst[3 * dst_stride + 3] = (ptr[6] + ptr[7] * 2 + ptr[7] + 2) >> 2;
-
-    }
-    break;
-    case B_RD_PRED:
-    {
-
-        unsigned char pp[9];
-
-        pp[0] = Left[3];
-        pp[1] = Left[2];
-        pp[2] = Left[1];
-        pp[3] = Left[0];
-        pp[4] = top_left;
-        pp[5] = Above[0];
-        pp[6] = Above[1];
-        pp[7] = Above[2];
-        pp[8] = Above[3];
-
-        dst[3 * dst_stride + 0] = (pp[0] + pp[1] * 2 + pp[2] + 2) >> 2;
-        dst[3 * dst_stride + 1] =
-            dst[2 * dst_stride + 0] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
-        dst[3 * dst_stride + 2] =
-            dst[2 * dst_stride + 1] =
-                dst[1 * dst_stride + 0] = (pp[2] + pp[3] * 2 + pp[4] + 2) >> 2;
-        dst[3 * dst_stride + 3] =
-            dst[2 * dst_stride + 2] =
-                dst[1 * dst_stride + 1] =
-                    dst[0 * dst_stride + 0] = (pp[3] + pp[4] * 2 + pp[5] + 2) >> 2;
-        dst[2 * dst_stride + 3] =
-            dst[1 * dst_stride + 2] =
-                dst[0 * dst_stride + 1] = (pp[4] + pp[5] * 2 + pp[6] + 2) >> 2;
-        dst[1 * dst_stride + 3] =
-            dst[0 * dst_stride + 2] = (pp[5] + pp[6] * 2 + pp[7] + 2) >> 2;
-        dst[0 * dst_stride + 3] = (pp[6] + pp[7] * 2 + pp[8] + 2) >> 2;
-
-    }
-    break;
-    case B_VR_PRED:
-    {
-
-        unsigned char pp[9];
-
-        pp[0] = Left[3];
-        pp[1] = Left[2];
-        pp[2] = Left[1];
-        pp[3] = Left[0];
-        pp[4] = top_left;
-        pp[5] = Above[0];
-        pp[6] = Above[1];
-        pp[7] = Above[2];
-        pp[8] = Above[3];
-
-
-        dst[3 * dst_stride + 0] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
-        dst[2 * dst_stride + 0] = (pp[2] + pp[3] * 2 + pp[4] + 2) >> 2;
-        dst[3 * dst_stride + 1] =
-            dst[1 * dst_stride + 0] = (pp[3] + pp[4] * 2 + pp[5] + 2) >> 2;
-        dst[2 * dst_stride + 1] =
-            dst[0 * dst_stride + 0] = (pp[4] + pp[5] + 1) >> 1;
-        dst[3 * dst_stride + 2] =
-            dst[1 * dst_stride + 1] = (pp[4] + pp[5] * 2 + pp[6] + 2) >> 2;
-        dst[2 * dst_stride + 2] =
-            dst[0 * dst_stride + 1] = (pp[5] + pp[6] + 1) >> 1;
-        dst[3 * dst_stride + 3] =
-            dst[1 * dst_stride + 2] = (pp[5] + pp[6] * 2 + pp[7] + 2) >> 2;
-        dst[2 * dst_stride + 3] =
-            dst[0 * dst_stride + 2] = (pp[6] + pp[7] + 1) >> 1;
-        dst[1 * dst_stride + 3] = (pp[6] + pp[7] * 2 + pp[8] + 2) >> 2;
-        dst[0 * dst_stride + 3] = (pp[7] + pp[8] + 1) >> 1;
-
-    }
-    break;
-    case B_VL_PRED:
-    {
-
-        unsigned char *pp = Above;
-
-        dst[0 * dst_stride + 0] = (pp[0] + pp[1] + 1) >> 1;
-        dst[1 * dst_stride + 0] = (pp[0] + pp[1] * 2 + pp[2] + 2) >> 2;
-        dst[2 * dst_stride + 0] =
-            dst[0 * dst_stride + 1] = (pp[1] + pp[2] + 1) >> 1;
-        dst[1 * dst_stride + 1] =
-            dst[3 * dst_stride + 0] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
-        dst[2 * dst_stride + 1] =
-            dst[0 * dst_stride + 2] = (pp[2] + pp[3] + 1) >> 1;
-        dst[3 * dst_stride + 1] =
-            dst[1 * dst_stride + 2] = (pp[2] + pp[3] * 2 + pp[4] + 2) >> 2;
-        dst[0 * dst_stride + 3] =
-            dst[2 * dst_stride + 2] = (pp[3] + pp[4] + 1) >> 1;
-        dst[1 * dst_stride + 3] =
-            dst[3 * dst_stride + 2] = (pp[3] + pp[4] * 2 + pp[5] + 2) >> 2;
-        dst[2 * dst_stride + 3] = (pp[4] + pp[5] * 2 + pp[6] + 2) >> 2;
-        dst[3 * dst_stride + 3] = (pp[5] + pp[6] * 2 + pp[7] + 2) >> 2;
-    }
-    break;
-
-    case B_HD_PRED:
-    {
-        unsigned char pp[9];
-        pp[0] = Left[3];
-        pp[1] = Left[2];
-        pp[2] = Left[1];
-        pp[3] = Left[0];
-        pp[4] = top_left;
-        pp[5] = Above[0];
-        pp[6] = Above[1];
-        pp[7] = Above[2];
-        pp[8] = Above[3];
-
-
-        dst[3 * dst_stride + 0] = (pp[0] + pp[1] + 1) >> 1;
-        dst[3 * dst_stride + 1] = (pp[0] + pp[1] * 2 + pp[2] + 2) >> 2;
-        dst[2 * dst_stride + 0] =
-            dst[3 * dst_stride + 2] = (pp[1] + pp[2] + 1) >> 1;
-        dst[2 * dst_stride + 1] =
-            dst[3 * dst_stride + 3] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
-        dst[2 * dst_stride + 2] =
-            dst[1 * dst_stride + 0] = (pp[2] + pp[3] + 1) >> 1;
-        dst[2 * dst_stride + 3] =
-            dst[1 * dst_stride + 1] = (pp[2] + pp[3] * 2 + pp[4] + 2) >> 2;
-        dst[1 * dst_stride + 2] =
-            dst[0 * dst_stride + 0] = (pp[3] + pp[4] + 1) >> 1;
-        dst[1 * dst_stride + 3] =
-            dst[0 * dst_stride + 1] = (pp[3] + pp[4] * 2 + pp[5] + 2) >> 2;
-        dst[0 * dst_stride + 2] = (pp[4] + pp[5] * 2 + pp[6] + 2) >> 2;
-        dst[0 * dst_stride + 3] = (pp[5] + pp[6] * 2 + pp[7] + 2) >> 2;
-    }
-    break;
-
-
-    case B_HU_PRED:
-    {
-        unsigned char *pp = Left;
-        dst[0 * dst_stride + 0] = (pp[0] + pp[1] + 1) >> 1;
-        dst[0 * dst_stride + 1] = (pp[0] + pp[1] * 2 + pp[2] + 2) >> 2;
-        dst[0 * dst_stride + 2] =
-            dst[1 * dst_stride + 0] = (pp[1] + pp[2] + 1) >> 1;
-        dst[0 * dst_stride + 3] =
-            dst[1 * dst_stride + 1] = (pp[1] + pp[2] * 2 + pp[3] + 2) >> 2;
-        dst[1 * dst_stride + 2] =
-            dst[2 * dst_stride + 0] = (pp[2] + pp[3] + 1) >> 1;
-        dst[1 * dst_stride + 3] =
-            dst[2 * dst_stride + 1] = (pp[2] + pp[3] * 2 + pp[3] + 2) >> 2;
-        dst[2 * dst_stride + 2] =
-            dst[2 * dst_stride + 3] =
-                dst[3 * dst_stride + 0] =
-                    dst[3 * dst_stride + 1] =
-                        dst[3 * dst_stride + 2] =
-                            dst[3 * dst_stride + 3] = pp[3];
-    }
-    break;
-
-    default:
-    break;
-
-    }
+    pred[b_mode](dst, dst_stride, Above, Left);
 }
--- a/vp8/common/reconintra4x4.h
+++ b/vp8/common/reconintra4x4.h
@@ -18,7 +18,7 @@
 #endif
 
 static void intra_prediction_down_copy(MACROBLOCKD *xd,
-                                             unsigned char *above_right_src)
+                                       unsigned char *above_right_src)
 {
     int dst_stride = xd->dst.y_stride;
     unsigned char *above_right_dst = xd->dst.y_buffer - dst_stride + 16;
@@ -32,6 +32,14 @@
     *dst_ptr1 = *src_ptr;
     *dst_ptr2 = *src_ptr;
 }
+
+void vp8_intra4x4_predict(unsigned char *Above,
+                          unsigned char *yleft, int left_stride,
+                          B_PREDICTION_MODE b_mode,
+                          unsigned char *dst, int dst_stride,
+                          unsigned char top_left);
+
+void vp8_init_intra4x4_predictors_internal(void);
 
 #ifdef __cplusplus
 }  // extern "C"
--- a/vp8/common/rtcd_defs.pl
+++ b/vp8/common/rtcd_defs.pl
@@ -152,10 +152,6 @@
 $vp8_copy_mem8x4_media=vp8_copy_mem8x4_v6;
 $vp8_copy_mem8x4_dspr2=vp8_copy_mem8x4_dspr2;
 
-add_proto qw/void vp8_intra4x4_predict/, "unsigned char *Above, unsigned char *yleft, int left_stride, int b_mode, unsigned char *dst, int dst_stride, unsigned char top_left";
-specialize qw/vp8_intra4x4_predict media/;
-$vp8_intra4x4_predict_media=vp8_intra4x4_predict_armv6;
-
 #
 # Postproc
 #
--- a/vp8/vp8_common.mk
+++ b/vp8/vp8_common.mk
@@ -145,7 +145,6 @@
 VP8_COMMON_SRCS-$(HAVE_MEDIA)  += common/arm/armv6/loopfilter_v6$(ASM)
 VP8_COMMON_SRCS-$(HAVE_MEDIA)  += common/arm/armv6/simpleloopfilter_v6$(ASM)
 VP8_COMMON_SRCS-$(HAVE_MEDIA)  += common/arm/armv6/sixtappredict8x4_v6$(ASM)
-VP8_COMMON_SRCS-$(HAVE_MEDIA)  += common/arm/armv6/intra4x4_predict_v6$(ASM)
 VP8_COMMON_SRCS-$(HAVE_MEDIA)  += common/arm/armv6/dequant_idct_v6$(ASM)
 VP8_COMMON_SRCS-$(HAVE_MEDIA)  += common/arm/armv6/dequantize_v6$(ASM)
 VP8_COMMON_SRCS-$(HAVE_MEDIA)  += common/arm/armv6/idct_blk_v6.c
--- a/vpx_dsp/intrapred.c
+++ b/vpx_dsp/intrapred.c
@@ -247,6 +247,38 @@
   }
 }
 
+void vpx_he_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
+                            const uint8_t *above, const uint8_t *left) {
+  const int H = above[-1];
+  const int I = left[0];
+  const int J = left[1];
+  const int K = left[2];
+  const int L = left[3];
+
+  memset(dst + stride * 0, AVG3(H, I, J), 4);
+  memset(dst + stride * 1, AVG3(I, J, K), 4);
+  memset(dst + stride * 2, AVG3(J, K, L), 4);
+  memset(dst + stride * 3, AVG3(K, L, L), 4);
+}
+
+void vpx_ve_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
+                            const uint8_t *above, const uint8_t *left) {
+  const int H = above[-1];
+  const int I = above[0];
+  const int J = above[1];
+  const int K = above[2];
+  const int L = above[3];
+  const int M = above[4];
+
+  dst[0] = AVG3(H, I, J);
+  dst[1] = AVG3(I, J, K);
+  dst[2] = AVG3(J, K, L);
+  dst[3] = AVG3(K, L, M);
+  memcpy(dst + stride * 1, dst, 4);
+  memcpy(dst + stride * 2, dst, 4);
+  memcpy(dst + stride * 3, dst, 4);
+}
+
 void vpx_d207_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
                               const uint8_t *above, const uint8_t *left) {
   const int I = left[0];
@@ -287,6 +319,30 @@
               DST(3, 3) = AVG3(E, F, G);  // differs from vp8
 }
 
+void vpx_d63e_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
+                              const uint8_t *above, const uint8_t *left) {
+  const int A = above[0];
+  const int B = above[1];
+  const int C = above[2];
+  const int D = above[3];
+  const int E = above[4];
+  const int F = above[5];
+  const int G = above[6];
+  const int H = above[7];
+  (void)left;
+  DST(0, 0) =             AVG2(A, B);
+  DST(1, 0) = DST(0, 2) = AVG2(B, C);
+  DST(2, 0) = DST(1, 2) = AVG2(C, D);
+  DST(3, 0) = DST(2, 2) = AVG2(D, E);
+              DST(3, 2) = AVG3(E, F, G);
+
+  DST(0, 1) =             AVG3(A, B, C);
+  DST(1, 1) = DST(0, 3) = AVG3(B, C, D);
+  DST(2, 1) = DST(1, 3) = AVG3(C, D, E);
+  DST(3, 1) = DST(2, 3) = AVG3(D, E, F);
+              DST(3, 3) = AVG3(F, G, H);
+}
+
 void vpx_d45_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
                              const uint8_t *above, const uint8_t *left) {
   const int A = above[0];
@@ -306,6 +362,27 @@
               DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G);
                           DST(3, 2) = DST(2, 3) = AVG3(F, G, H);
                                       DST(3, 3) = H;  // differs from vp8
+}
+
+void vpx_d45e_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
+                              const uint8_t *above, const uint8_t *left) {
+  const int A = above[0];
+  const int B = above[1];
+  const int C = above[2];
+  const int D = above[3];
+  const int E = above[4];
+  const int F = above[5];
+  const int G = above[6];
+  const int H = above[7];
+  (void)stride;
+  (void)left;
+  DST(0, 0)                                     = AVG3(A, B, C);
+  DST(1, 0) = DST(0, 1)                         = AVG3(B, C, D);
+  DST(2, 0) = DST(1, 1) = DST(0, 2)             = AVG3(C, D, E);
+  DST(3, 0) = DST(2, 1) = DST(1, 2) = DST(0, 3) = AVG3(D, E, F);
+              DST(3, 1) = DST(2, 2) = DST(1, 3) = AVG3(E, F, G);
+                          DST(3, 2) = DST(2, 3) = AVG3(F, G, H);
+                                      DST(3, 3) = AVG3(G, H, H);
 }
 
 void vpx_d117_predictor_4x4_c(uint8_t *dst, ptrdiff_t stride,
--- a/vpx_dsp/vpx_dsp_rtcd_defs.pl
+++ b/vpx_dsp/vpx_dsp_rtcd_defs.pl
@@ -60,12 +60,21 @@
 add_proto qw/void vpx_d45_predictor_4x4/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
 specialize qw/vpx_d45_predictor_4x4 neon/, "$ssse3_x86inc";
 
+add_proto qw/void vpx_d45e_predictor_4x4/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
+specialize qw/vpx_d45e_predictor_4x4/;
+
 add_proto qw/void vpx_d63_predictor_4x4/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
 specialize qw/vpx_d63_predictor_4x4/, "$ssse3_x86inc";
 
+add_proto qw/void vpx_d63e_predictor_4x4/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
+specialize qw/vpx_d63e_predictor_4x4/;
+
 add_proto qw/void vpx_h_predictor_4x4/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
 specialize qw/vpx_h_predictor_4x4 neon dspr2 msa/, "$ssse3_x86inc";
 
+add_proto qw/void vpx_he_predictor_4x4/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
+specialize qw/vpx_he_predictor_4x4/;
+
 add_proto qw/void vpx_d117_predictor_4x4/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
 specialize qw/vpx_d117_predictor_4x4/;
 
@@ -77,6 +86,9 @@
 
 add_proto qw/void vpx_v_predictor_4x4/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
 specialize qw/vpx_v_predictor_4x4 neon msa/, "$sse_x86inc";
+
+add_proto qw/void vpx_ve_predictor_4x4/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
+specialize qw/vpx_ve_predictor_4x4/;
 
 add_proto qw/void vpx_tm_predictor_4x4/, "uint8_t *dst, ptrdiff_t y_stride, const uint8_t *above, const uint8_t *left";
 specialize qw/vpx_tm_predictor_4x4 neon dspr2 msa/, "$sse_x86inc";