FFmpeg
vc1dsp_init.c
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1 /*
2  * Copyright (c) 2023 Institue of Software Chinese Academy of Sciences (ISCAS).
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <stdint.h>
22 
23 #include "libavutil/attributes.h"
24 #include "libavutil/cpu.h"
25 #include "libavutil/riscv/cpu.h"
26 #include "libavcodec/vc1.h"
27 
28 void ff_vc1_inv_trans_8x8_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
29 void ff_vc1_inv_trans_8x8_rvv(int16_t block[64]);
30 void ff_vc1_inv_trans_4x8_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
31 void ff_vc1_inv_trans_4x8_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
32 void ff_vc1_inv_trans_8x4_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
33 void ff_vc1_inv_trans_8x4_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
34 void ff_vc1_inv_trans_4x4_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
35 void ff_vc1_inv_trans_4x4_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block);
36 void ff_put_pixels16x16_rvi(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd);
37 void ff_put_pixels8x8_rvi(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd);
38 void ff_avg_pixels16x16_rvv(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd);
39 void ff_avg_pixels8x8_rvv(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd);
40 int ff_startcode_find_candidate_rvb(const uint8_t *, int);
41 int ff_startcode_find_candidate_rvv(const uint8_t *, int);
42 int ff_vc1_unescape_buffer_rvv(const uint8_t *, int, uint8_t *);
43 
45 {
46 #if HAVE_RV
47  int flags = av_get_cpu_flags();
48 
49 # if __riscv_xlen >= 64
50  if (flags & AV_CPU_FLAG_RVI) {
53  }
54 # endif
57 # if HAVE_RVV
58  if (flags & AV_CPU_FLAG_RVV_I32) {
59  if (ff_rv_vlen_least(128)) {
68  if (flags & AV_CPU_FLAG_RVV_I64) {
71  }
72  }
75  }
76 # endif
77 #endif
78 }
ff_put_pixels16x16_rvi
void ff_put_pixels16x16_rvi(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd)
AV_CPU_FLAG_RVB_BASIC
#define AV_CPU_FLAG_RVB_BASIC
Basic bit-manipulations.
Definition: cpu.h:91
vc1.h
VC1DSPContext::vc1_inv_trans_4x4
void(* vc1_inv_trans_4x4)(uint8_t *dest, ptrdiff_t stride, int16_t *block)
Definition: vc1dsp.h:40
VC1DSPContext::avg_vc1_mspel_pixels_tab
vc1op_pixels_func avg_vc1_mspel_pixels_tab[2][16]
Definition: vc1dsp.h:60
ff_vc1_inv_trans_8x4_rvv
void ff_vc1_inv_trans_8x4_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block)
VC1DSPContext::vc1_inv_trans_8x8_dc
void(* vc1_inv_trans_8x8_dc)(uint8_t *dest, ptrdiff_t stride, int16_t *block)
Definition: vc1dsp.h:41
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:103
VC1DSPContext::vc1_inv_trans_4x4_dc
void(* vc1_inv_trans_4x4_dc)(uint8_t *dest, ptrdiff_t stride, int16_t *block)
Definition: vc1dsp.h:44
ff_vc1_inv_trans_4x8_rvv
void ff_vc1_inv_trans_4x8_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block)
ff_vc1_inv_trans_8x4_dc_rvv
void ff_vc1_inv_trans_8x4_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block)
rnd
#define rnd()
Definition: checkasm.h:170
VC1DSPContext::vc1_inv_trans_8x4_dc
void(* vc1_inv_trans_8x4_dc)(uint8_t *dest, ptrdiff_t stride, int16_t *block)
Definition: vc1dsp.h:42
av_cold
#define av_cold
Definition: attributes.h:90
ff_rv_vlen_least
static bool ff_rv_vlen_least(unsigned int bits)
Checks that the vector bit-size is at least the given value.
Definition: cpu.h:65
ff_avg_pixels8x8_rvv
void ff_avg_pixels8x8_rvv(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd)
cpu.h
ff_vc1_inv_trans_4x8_dc_rvv
void ff_vc1_inv_trans_4x8_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block)
ff_startcode_find_candidate_rvv
int ff_startcode_find_candidate_rvv(const uint8_t *, int)
ff_vc1_inv_trans_4x4_dc_rvv
void ff_vc1_inv_trans_4x4_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block)
ff_put_pixels8x8_rvi
void ff_put_pixels8x8_rvi(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd)
VC1DSPContext::vc1_inv_trans_8x4
void(* vc1_inv_trans_8x4)(uint8_t *dest, ptrdiff_t stride, int16_t *block)
Definition: vc1dsp.h:38
ff_vc1_unescape_buffer_rvv
int ff_vc1_unescape_buffer_rvv(const uint8_t *, int, uint8_t *)
VC1DSPContext::vc1_inv_trans_4x8_dc
void(* vc1_inv_trans_4x8_dc)(uint8_t *dest, ptrdiff_t stride, int16_t *block)
Definition: vc1dsp.h:43
ff_vc1_inv_trans_8x8_dc_rvv
void ff_vc1_inv_trans_8x8_dc_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block)
ff_startcode_find_candidate_rvb
int ff_startcode_find_candidate_rvb(const uint8_t *, int)
cpu.h
attributes.h
ff_vc1_inv_trans_4x4_rvv
void ff_vc1_inv_trans_4x4_rvv(uint8_t *dest, ptrdiff_t stride, int16_t *block)
VC1DSPContext::vc1_inv_trans_8x8
void(* vc1_inv_trans_8x8)(int16_t *b)
Definition: vc1dsp.h:37
VC1DSPContext::startcode_find_candidate
int(* startcode_find_candidate)(const uint8_t *buf, int size)
Search buf from the start for up to size bytes.
Definition: vc1dsp.h:82
VC1DSPContext::vc1_unescape_buffer
int(* vc1_unescape_buffer)(const uint8_t *src, int size, uint8_t *dst)
Definition: vc1dsp.h:85
AV_CPU_FLAG_RVV_I32
#define AV_CPU_FLAG_RVV_I32
Vectors of 8/16/32-bit int's *‍/.
Definition: cpu.h:87
ff_vc1dsp_init_riscv
av_cold void ff_vc1dsp_init_riscv(VC1DSPContext *dsp)
Definition: vc1dsp_init.c:44
stride
#define stride
Definition: h264pred_template.c:537
VC1DSPContext
Definition: vc1dsp.h:35
VC1DSPContext::put_vc1_mspel_pixels_tab
vc1op_pixels_func put_vc1_mspel_pixels_tab[2][16]
Definition: vc1dsp.h:59
AV_CPU_FLAG_RVI
#define AV_CPU_FLAG_RVI
I (full GPR bank)
Definition: cpu.h:84
ff_vc1_inv_trans_8x8_rvv
void ff_vc1_inv_trans_8x8_rvv(int16_t block[64])
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
flags
#define flags(name, subs,...)
Definition: cbs_av1.c:482
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
AV_CPU_FLAG_RVV_I64
#define AV_CPU_FLAG_RVV_I64
Vectors of 64-bit int's *‍/.
Definition: cpu.h:89
VC1DSPContext::vc1_inv_trans_4x8
void(* vc1_inv_trans_4x8)(uint8_t *dest, ptrdiff_t stride, int16_t *block)
Definition: vc1dsp.h:39
ff_avg_pixels16x16_rvv
void ff_avg_pixels16x16_rvv(uint8_t *dst, const uint8_t *src, ptrdiff_t line_size, int rnd)