mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
107 lines
3.8 KiB
107 lines
3.8 KiB
/* |
|
* Copyright (c) 2010 Mans Rullgard |
|
* |
|
* This file is part of Libav. |
|
* |
|
* Libav is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public |
|
* License as published by the Free Software Foundation; either |
|
* version 2.1 of the License, or (at your option) any later version. |
|
* |
|
* Libav is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with Libav; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
#include "libavutil/arm/asm.S" |
|
#include "asm-offsets.h" |
|
|
|
function ff_dct_unquantize_h263_inter_neon, export=1 |
|
add r12, r0, #BLOCK_LAST_INDEX |
|
ldr r12, [r12, r2, lsl #2] |
|
add r0, r0, #INTER_SCANTAB_RASTER_END |
|
ldrb r12, [r0, r12] |
|
sub r2, r3, #1 |
|
lsl r0, r3, #1 |
|
orr r2, r2, #1 |
|
add r3, r12, #1 |
|
endfunc |
|
|
|
function ff_dct_unquantize_h263_neon, export=1 |
|
vdup.16 q15, r0 @ qmul |
|
vdup.16 q14, r2 @ qadd |
|
vneg.s16 q13, q14 |
|
cmp r3, #4 |
|
mov r0, r1 |
|
ble 2f |
|
1: |
|
vld1.16 {q0}, [r0,:128]! |
|
vclt.s16 q3, q0, #0 |
|
vld1.16 {q8}, [r0,:128]! |
|
vceq.s16 q1, q0, #0 |
|
vmul.s16 q2, q0, q15 |
|
vclt.s16 q11, q8, #0 |
|
vmul.s16 q10, q8, q15 |
|
vbsl q3, q13, q14 |
|
vbsl q11, q13, q14 |
|
vadd.s16 q2, q2, q3 |
|
vceq.s16 q9, q8, #0 |
|
vadd.s16 q10, q10, q11 |
|
vbif q0, q2, q1 |
|
vbif q8, q10, q9 |
|
subs r3, r3, #16 |
|
vst1.16 {q0}, [r1,:128]! |
|
vst1.16 {q8}, [r1,:128]! |
|
it le |
|
bxle lr |
|
cmp r3, #8 |
|
bgt 1b |
|
2: |
|
vld1.16 {d0}, [r0,:64] |
|
vclt.s16 d3, d0, #0 |
|
vceq.s16 d1, d0, #0 |
|
vmul.s16 d2, d0, d30 |
|
vbsl d3, d26, d28 |
|
vadd.s16 d2, d2, d3 |
|
vbif d0, d2, d1 |
|
vst1.16 {d0}, [r1,:64] |
|
bx lr |
|
endfunc |
|
|
|
function ff_dct_unquantize_h263_intra_neon, export=1 |
|
push {r4-r6,lr} |
|
add r12, r0, #BLOCK_LAST_INDEX |
|
ldr r6, [r0, #AC_PRED] |
|
add lr, r0, #INTER_SCANTAB_RASTER_END |
|
cmp r6, #0 |
|
it ne |
|
movne r12, #63 |
|
bne 1f |
|
ldr r12, [r12, r2, lsl #2] |
|
ldrb r12, [lr, r12] |
|
1: ldr r5, [r0, #H263_AIC] |
|
ldrsh r4, [r1] |
|
cmp r5, #0 |
|
mov r5, r1 |
|
it ne |
|
movne r2, #0 |
|
bne 2f |
|
cmp r2, #4 |
|
it ge |
|
addge r0, r0, #4 |
|
sub r2, r3, #1 |
|
ldr r6, [r0, #Y_DC_SCALE] |
|
orr r2, r2, #1 |
|
smulbb r4, r4, r6 |
|
2: lsl r0, r3, #1 |
|
add r3, r12, #1 |
|
bl X(ff_dct_unquantize_h263_neon) |
|
vmov.16 d0[0], r4 |
|
vst1.16 {d0[0]}, [r5] |
|
pop {r4-r6,pc} |
|
endfunc
|
|
|