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FFmpeg/libavcodec/arm/hevcdsp_init_neon.c
J. Dekker 22b7c37275 lavc/arm: dont assign hevc_qpel functions for non-multiple of 8 widths 
The assembly is written assuming that the width is a multiple of 8.

However the real issue is the functions were errorneously assigned to
the 2, 4, 6 & 12 widths. This behaviour never broke the decoder as
samples which trigger the functions for these widths have not been found
in the wild. This relies on the mappings in ff_hevc_pel_weight[].

Signed-off-by: J. Dekker <jdek@itanimul.li>
2022-01-04 14:31:32 +01:00

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/*
* Copyright (c) 2014 Seppo Tomperi <seppo.tomperi@vtt.fi>
*
* This file is part of FFmpeg.
*
* FFmpeg 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.
*
* FFmpeg 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 FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "libavutil/attributes.h"
#include "libavutil/arm/cpu.h"
#include "libavcodec/hevcdsp.h"
#include "libavcodec/avcodec.h"
#include "hevcdsp_arm.h"
void ff_hevc_sao_band_filter_neon_8_wrapper(uint8_t *_dst, uint8_t *_src,
ptrdiff_t stride_dst, ptrdiff_t stride_src,
int16_t *sao_offset_val, int sao_left_class,
int width, int height);
void ff_hevc_sao_edge_filter_neon_8_wrapper(uint8_t *_dst, uint8_t *_src, ptrdiff_t stride_dst, int16_t *sao_offset_val,
int eo, int width, int height);
void ff_hevc_v_loop_filter_luma_neon(uint8_t *_pix, ptrdiff_t _stride, int _beta, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
void ff_hevc_h_loop_filter_luma_neon(uint8_t *_pix, ptrdiff_t _stride, int _beta, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
void ff_hevc_v_loop_filter_chroma_neon(uint8_t *_pix, ptrdiff_t _stride, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
void ff_hevc_h_loop_filter_chroma_neon(uint8_t *_pix, ptrdiff_t _stride, int *_tc, uint8_t *_no_p, uint8_t *_no_q);
void ff_hevc_add_residual_4x4_8_neon(uint8_t *_dst, int16_t *coeffs,
ptrdiff_t stride);
void ff_hevc_add_residual_4x4_10_neon(uint8_t *_dst, int16_t *coeffs,
ptrdiff_t stride);
void ff_hevc_add_residual_8x8_8_neon(uint8_t *_dst, int16_t *coeffs,
ptrdiff_t stride);
void ff_hevc_add_residual_8x8_10_neon(uint8_t *_dst, int16_t *coeffs,
ptrdiff_t stride);
void ff_hevc_add_residual_16x16_8_neon(uint8_t *_dst, int16_t *coeffs,
ptrdiff_t stride);
void ff_hevc_add_residual_16x16_10_neon(uint8_t *_dst, int16_t *coeffs,
ptrdiff_t stride);
void ff_hevc_add_residual_32x32_8_neon(uint8_t *_dst, int16_t *coeffs,
ptrdiff_t stride);
void ff_hevc_add_residual_32x32_10_neon(uint8_t *_dst, int16_t *coeffs,
ptrdiff_t stride);
void ff_hevc_idct_4x4_dc_8_neon(int16_t *coeffs);
void ff_hevc_idct_8x8_dc_8_neon(int16_t *coeffs);
void ff_hevc_idct_16x16_dc_8_neon(int16_t *coeffs);
void ff_hevc_idct_32x32_dc_8_neon(int16_t *coeffs);
void ff_hevc_idct_4x4_dc_10_neon(int16_t *coeffs);
void ff_hevc_idct_8x8_dc_10_neon(int16_t *coeffs);
void ff_hevc_idct_16x16_dc_10_neon(int16_t *coeffs);
void ff_hevc_idct_32x32_dc_10_neon(int16_t *coeffs);
void ff_hevc_idct_4x4_8_neon(int16_t *coeffs, int col_limit);
void ff_hevc_idct_8x8_8_neon(int16_t *coeffs, int col_limit);
void ff_hevc_idct_16x16_8_neon(int16_t *coeffs, int col_limit);
void ff_hevc_idct_32x32_8_neon(int16_t *coeffs, int col_limit);
void ff_hevc_idct_4x4_10_neon(int16_t *coeffs, int col_limit);
void ff_hevc_idct_8x8_10_neon(int16_t *coeffs, int col_limit);
void ff_hevc_idct_16x16_10_neon(int16_t *coeffs, int col_limit);
void ff_hevc_idct_32x32_10_neon(int16_t *coeffs, int col_limit);
void ff_hevc_transform_luma_4x4_neon_8(int16_t *coeffs);
#define PUT_PIXELS(name) \
void name(int16_t *dst, uint8_t *src, \
ptrdiff_t srcstride, int height, \
intptr_t mx, intptr_t my, int width)
PUT_PIXELS(ff_hevc_put_pixels_w2_neon_8);
PUT_PIXELS(ff_hevc_put_pixels_w4_neon_8);
PUT_PIXELS(ff_hevc_put_pixels_w6_neon_8);
PUT_PIXELS(ff_hevc_put_pixels_w8_neon_8);
PUT_PIXELS(ff_hevc_put_pixels_w12_neon_8);
PUT_PIXELS(ff_hevc_put_pixels_w16_neon_8);
PUT_PIXELS(ff_hevc_put_pixels_w24_neon_8);
PUT_PIXELS(ff_hevc_put_pixels_w32_neon_8);
PUT_PIXELS(ff_hevc_put_pixels_w48_neon_8);
PUT_PIXELS(ff_hevc_put_pixels_w64_neon_8);
#undef PUT_PIXELS
static void (*put_hevc_qpel_neon[4][4])(int16_t *dst, ptrdiff_t dststride, uint8_t *src, ptrdiff_t srcstride,
int height, int width);
static void (*put_hevc_qpel_uw_neon[4][4])(uint8_t *dst, ptrdiff_t dststride, uint8_t *_src, ptrdiff_t _srcstride,
int width, int height, int16_t* src2, ptrdiff_t src2stride);
void ff_hevc_put_qpel_neon_wrapper(int16_t *dst, uint8_t *src, ptrdiff_t srcstride,
int height, intptr_t mx, intptr_t my, int width);
void ff_hevc_put_qpel_uni_neon_wrapper(uint8_t *dst, ptrdiff_t dststride, uint8_t *src, ptrdiff_t srcstride,
int height, intptr_t mx, intptr_t my, int width);
void ff_hevc_put_qpel_bi_neon_wrapper(uint8_t *dst, ptrdiff_t dststride, uint8_t *src, ptrdiff_t srcstride,
int16_t *src2,
int height, intptr_t mx, intptr_t my, int width);
#define QPEL_FUNC(name) \
void name(int16_t *dst, ptrdiff_t dststride, uint8_t *src, ptrdiff_t srcstride, \
int height, int width)
QPEL_FUNC(ff_hevc_put_qpel_v1_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_v2_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_v3_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_h1_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_h2_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_h3_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_h1v1_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_h1v2_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_h1v3_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_h2v1_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_h2v2_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_h2v3_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_h3v1_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_h3v2_neon_8);
QPEL_FUNC(ff_hevc_put_qpel_h3v3_neon_8);
#undef QPEL_FUNC
#define QPEL_FUNC_UW_PIX(name) \
void name(uint8_t *dst, ptrdiff_t dststride, uint8_t *_src, ptrdiff_t _srcstride, \
int height, intptr_t mx, intptr_t my, int width);
QPEL_FUNC_UW_PIX(ff_hevc_put_qpel_uw_pixels_w4_neon_8);
QPEL_FUNC_UW_PIX(ff_hevc_put_qpel_uw_pixels_w8_neon_8);
QPEL_FUNC_UW_PIX(ff_hevc_put_qpel_uw_pixels_w16_neon_8);
QPEL_FUNC_UW_PIX(ff_hevc_put_qpel_uw_pixels_w24_neon_8);
QPEL_FUNC_UW_PIX(ff_hevc_put_qpel_uw_pixels_w32_neon_8);
QPEL_FUNC_UW_PIX(ff_hevc_put_qpel_uw_pixels_w48_neon_8);
QPEL_FUNC_UW_PIX(ff_hevc_put_qpel_uw_pixels_w64_neon_8);
#undef QPEL_FUNC_UW_PIX
#define QPEL_FUNC_UW(name) \
void name(uint8_t *dst, ptrdiff_t dststride, uint8_t *_src, ptrdiff_t _srcstride, \
int width, int height, int16_t* src2, ptrdiff_t src2stride);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_pixels_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_v1_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_v2_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_v3_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_h1_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_h2_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_h3_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_h1v1_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_h1v2_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_h1v3_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_h2v1_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_h2v2_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_h2v3_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_h3v1_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_h3v2_neon_8);
QPEL_FUNC_UW(ff_hevc_put_qpel_uw_h3v3_neon_8);
#undef QPEL_FUNC_UW
void ff_hevc_sao_band_filter_neon_8(uint8_t *dst, uint8_t *src, ptrdiff_t stride_dst, ptrdiff_t stride_src, int width, int height, int16_t *offset_table);
void ff_hevc_sao_band_filter_neon_8_wrapper(uint8_t *_dst, uint8_t *_src,
ptrdiff_t stride_dst, ptrdiff_t stride_src,
int16_t *sao_offset_val, int sao_left_class,
int width, int height) {
uint8_t *dst = _dst;
uint8_t *src = _src;
int16_t offset_table[32] = {0};
int k;
for (k = 0; k < 4; k++) {
offset_table[(k + sao_left_class) & 31] = sao_offset_val[k + 1];
}
ff_hevc_sao_band_filter_neon_8(dst, src, stride_dst, stride_src, width, height, offset_table);
}
void ff_hevc_sao_edge_filter_neon_8(uint8_t *dst, uint8_t *src, ptrdiff_t stride_dst, ptrdiff_t stride_src, int width, int height,
int a_stride, int b_stride, int16_t *sao_offset_val, uint8_t *edge_idx);
void ff_hevc_sao_edge_filter_neon_8_wrapper(uint8_t *_dst, uint8_t *_src, ptrdiff_t stride_dst, int16_t *sao_offset_val,
int eo, int width, int height) {
static uint8_t edge_idx[] = { 1, 2, 0, 3, 4 };
static const int8_t pos[4][2][2] = {
{ { -1, 0 }, { 1, 0 } }, // horizontal
{ { 0, -1 }, { 0, 1 } }, // vertical
{ { -1, -1 }, { 1, 1 } }, // 45 degree
{ { 1, -1 }, { -1, 1 } }, // 135 degree
};
uint8_t *dst = _dst;
uint8_t *src = _src;
int a_stride, b_stride;
ptrdiff_t stride_src = (2*MAX_PB_SIZE + AV_INPUT_BUFFER_PADDING_SIZE);
a_stride = pos[eo][0][0] + pos[eo][0][1] * stride_src;
b_stride = pos[eo][1][0] + pos[eo][1][1] * stride_src;
ff_hevc_sao_edge_filter_neon_8(dst, src, stride_dst, stride_src, width, height, a_stride, b_stride, sao_offset_val, edge_idx);
}
void ff_hevc_put_qpel_neon_wrapper(int16_t *dst, uint8_t *src, ptrdiff_t srcstride,
int height, intptr_t mx, intptr_t my, int width) {
put_hevc_qpel_neon[my][mx](dst, MAX_PB_SIZE, src, srcstride, height, width);
}
void ff_hevc_put_qpel_uni_neon_wrapper(uint8_t *dst, ptrdiff_t dststride, uint8_t *src, ptrdiff_t srcstride,
int height, intptr_t mx, intptr_t my, int width) {
put_hevc_qpel_uw_neon[my][mx](dst, dststride, src, srcstride, width, height, NULL, 0);
}
void ff_hevc_put_qpel_bi_neon_wrapper(uint8_t *dst, ptrdiff_t dststride, uint8_t *src, ptrdiff_t srcstride,
int16_t *src2,
int height, intptr_t mx, intptr_t my, int width) {
put_hevc_qpel_uw_neon[my][mx](dst, dststride, src, srcstride, width, height, src2, MAX_PB_SIZE);
}
av_cold void ff_hevc_dsp_init_neon(HEVCDSPContext *c, const int bit_depth)
{
if (bit_depth == 8) {
int x;
c->hevc_v_loop_filter_luma = ff_hevc_v_loop_filter_luma_neon;
c->hevc_h_loop_filter_luma = ff_hevc_h_loop_filter_luma_neon;
c->hevc_v_loop_filter_chroma = ff_hevc_v_loop_filter_chroma_neon;
c->hevc_h_loop_filter_chroma = ff_hevc_h_loop_filter_chroma_neon;
c->sao_band_filter[0] = ff_hevc_sao_band_filter_neon_8_wrapper;
c->sao_band_filter[1] = ff_hevc_sao_band_filter_neon_8_wrapper;
c->sao_band_filter[2] = ff_hevc_sao_band_filter_neon_8_wrapper;
c->sao_band_filter[3] = ff_hevc_sao_band_filter_neon_8_wrapper;
c->sao_band_filter[4] = ff_hevc_sao_band_filter_neon_8_wrapper;
c->sao_edge_filter[0] = ff_hevc_sao_edge_filter_neon_8_wrapper;
c->sao_edge_filter[1] = ff_hevc_sao_edge_filter_neon_8_wrapper;
c->sao_edge_filter[2] = ff_hevc_sao_edge_filter_neon_8_wrapper;
c->sao_edge_filter[3] = ff_hevc_sao_edge_filter_neon_8_wrapper;
c->sao_edge_filter[4] = ff_hevc_sao_edge_filter_neon_8_wrapper;
c->add_residual[0] = ff_hevc_add_residual_4x4_8_neon;
c->add_residual[1] = ff_hevc_add_residual_8x8_8_neon;
c->add_residual[2] = ff_hevc_add_residual_16x16_8_neon;
c->add_residual[3] = ff_hevc_add_residual_32x32_8_neon;
c->idct_dc[0] = ff_hevc_idct_4x4_dc_8_neon;
c->idct_dc[1] = ff_hevc_idct_8x8_dc_8_neon;
c->idct_dc[2] = ff_hevc_idct_16x16_dc_8_neon;
c->idct_dc[3] = ff_hevc_idct_32x32_dc_8_neon;
c->idct[0] = ff_hevc_idct_4x4_8_neon;
c->idct[1] = ff_hevc_idct_8x8_8_neon;
c->idct[2] = ff_hevc_idct_16x16_8_neon;
c->idct[3] = ff_hevc_idct_32x32_8_neon;
c->transform_4x4_luma = ff_hevc_transform_luma_4x4_neon_8;
put_hevc_qpel_neon[1][0] = ff_hevc_put_qpel_v1_neon_8;
put_hevc_qpel_neon[2][0] = ff_hevc_put_qpel_v2_neon_8;
put_hevc_qpel_neon[3][0] = ff_hevc_put_qpel_v3_neon_8;
put_hevc_qpel_neon[0][1] = ff_hevc_put_qpel_h1_neon_8;
put_hevc_qpel_neon[0][2] = ff_hevc_put_qpel_h2_neon_8;
put_hevc_qpel_neon[0][3] = ff_hevc_put_qpel_h3_neon_8;
put_hevc_qpel_neon[1][1] = ff_hevc_put_qpel_h1v1_neon_8;
put_hevc_qpel_neon[1][2] = ff_hevc_put_qpel_h2v1_neon_8;
put_hevc_qpel_neon[1][3] = ff_hevc_put_qpel_h3v1_neon_8;
put_hevc_qpel_neon[2][1] = ff_hevc_put_qpel_h1v2_neon_8;
put_hevc_qpel_neon[2][2] = ff_hevc_put_qpel_h2v2_neon_8;
put_hevc_qpel_neon[2][3] = ff_hevc_put_qpel_h3v2_neon_8;
put_hevc_qpel_neon[3][1] = ff_hevc_put_qpel_h1v3_neon_8;
put_hevc_qpel_neon[3][2] = ff_hevc_put_qpel_h2v3_neon_8;
put_hevc_qpel_neon[3][3] = ff_hevc_put_qpel_h3v3_neon_8;
put_hevc_qpel_uw_neon[1][0] = ff_hevc_put_qpel_uw_v1_neon_8;
put_hevc_qpel_uw_neon[2][0] = ff_hevc_put_qpel_uw_v2_neon_8;
put_hevc_qpel_uw_neon[3][0] = ff_hevc_put_qpel_uw_v3_neon_8;
put_hevc_qpel_uw_neon[0][1] = ff_hevc_put_qpel_uw_h1_neon_8;
put_hevc_qpel_uw_neon[0][2] = ff_hevc_put_qpel_uw_h2_neon_8;
put_hevc_qpel_uw_neon[0][3] = ff_hevc_put_qpel_uw_h3_neon_8;
put_hevc_qpel_uw_neon[1][1] = ff_hevc_put_qpel_uw_h1v1_neon_8;
put_hevc_qpel_uw_neon[1][2] = ff_hevc_put_qpel_uw_h2v1_neon_8;
put_hevc_qpel_uw_neon[1][3] = ff_hevc_put_qpel_uw_h3v1_neon_8;
put_hevc_qpel_uw_neon[2][1] = ff_hevc_put_qpel_uw_h1v2_neon_8;
put_hevc_qpel_uw_neon[2][2] = ff_hevc_put_qpel_uw_h2v2_neon_8;
put_hevc_qpel_uw_neon[2][3] = ff_hevc_put_qpel_uw_h3v2_neon_8;
put_hevc_qpel_uw_neon[3][1] = ff_hevc_put_qpel_uw_h1v3_neon_8;
put_hevc_qpel_uw_neon[3][2] = ff_hevc_put_qpel_uw_h2v3_neon_8;
put_hevc_qpel_uw_neon[3][3] = ff_hevc_put_qpel_uw_h3v3_neon_8;
for (x = 3; x < 10; x++) {
if (x == 4) continue;
c->put_hevc_qpel[x][1][0] = ff_hevc_put_qpel_neon_wrapper;
c->put_hevc_qpel[x][0][1] = ff_hevc_put_qpel_neon_wrapper;
c->put_hevc_qpel[x][1][1] = ff_hevc_put_qpel_neon_wrapper;
c->put_hevc_qpel_uni[x][1][0] = ff_hevc_put_qpel_uni_neon_wrapper;
c->put_hevc_qpel_uni[x][0][1] = ff_hevc_put_qpel_uni_neon_wrapper;
c->put_hevc_qpel_uni[x][1][1] = ff_hevc_put_qpel_uni_neon_wrapper;
c->put_hevc_qpel_bi[x][1][0] = ff_hevc_put_qpel_bi_neon_wrapper;
c->put_hevc_qpel_bi[x][0][1] = ff_hevc_put_qpel_bi_neon_wrapper;
c->put_hevc_qpel_bi[x][1][1] = ff_hevc_put_qpel_bi_neon_wrapper;
}
c->put_hevc_qpel[0][0][0] = ff_hevc_put_pixels_w2_neon_8;
c->put_hevc_qpel[1][0][0] = ff_hevc_put_pixels_w4_neon_8;
c->put_hevc_qpel[2][0][0] = ff_hevc_put_pixels_w6_neon_8;
c->put_hevc_qpel[3][0][0] = ff_hevc_put_pixels_w8_neon_8;
c->put_hevc_qpel[4][0][0] = ff_hevc_put_pixels_w12_neon_8;
c->put_hevc_qpel[5][0][0] = ff_hevc_put_pixels_w16_neon_8;
c->put_hevc_qpel[6][0][0] = ff_hevc_put_pixels_w24_neon_8;
c->put_hevc_qpel[7][0][0] = ff_hevc_put_pixels_w32_neon_8;
c->put_hevc_qpel[8][0][0] = ff_hevc_put_pixels_w48_neon_8;
c->put_hevc_qpel[9][0][0] = ff_hevc_put_pixels_w64_neon_8;
c->put_hevc_qpel_uni[1][0][0] = ff_hevc_put_qpel_uw_pixels_w4_neon_8;
c->put_hevc_qpel_uni[3][0][0] = ff_hevc_put_qpel_uw_pixels_w8_neon_8;
c->put_hevc_qpel_uni[5][0][0] = ff_hevc_put_qpel_uw_pixels_w16_neon_8;
c->put_hevc_qpel_uni[6][0][0] = ff_hevc_put_qpel_uw_pixels_w24_neon_8;
c->put_hevc_qpel_uni[7][0][0] = ff_hevc_put_qpel_uw_pixels_w32_neon_8;
c->put_hevc_qpel_uni[8][0][0] = ff_hevc_put_qpel_uw_pixels_w48_neon_8;
c->put_hevc_qpel_uni[9][0][0] = ff_hevc_put_qpel_uw_pixels_w64_neon_8;
}
if (bit_depth == 10) {
c->add_residual[0] = ff_hevc_add_residual_4x4_10_neon;
c->add_residual[1] = ff_hevc_add_residual_8x8_10_neon;
c->add_residual[2] = ff_hevc_add_residual_16x16_10_neon;
c->add_residual[3] = ff_hevc_add_residual_32x32_10_neon;
c->idct_dc[0] = ff_hevc_idct_4x4_dc_10_neon;
c->idct_dc[1] = ff_hevc_idct_8x8_dc_10_neon;
c->idct_dc[2] = ff_hevc_idct_16x16_dc_10_neon;
c->idct_dc[3] = ff_hevc_idct_32x32_dc_10_neon;
c->idct[0] = ff_hevc_idct_4x4_10_neon;
c->idct[1] = ff_hevc_idct_8x8_10_neon;
c->idct[2] = ff_hevc_idct_16x16_10_neon;
c->idct[3] = ff_hevc_idct_32x32_10_neon;
}
}
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