FFmpeg
vc1dsp_init_aarch64.c
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include <stdint.h>
20 
21 #include "libavutil/attributes.h"
22 #include "libavutil/cpu.h"
23 #include "libavutil/aarch64/cpu.h"
24 #include "libavutil/intreadwrite.h"
25 #include "libavcodec/vc1dsp.h"
26 
27 #include "config.h"
28 
29 void ff_vc1_inv_trans_8x8_neon(int16_t *block);
30 void ff_vc1_inv_trans_8x4_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
31 void ff_vc1_inv_trans_4x8_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
32 void ff_vc1_inv_trans_4x4_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
33 
34 void ff_vc1_inv_trans_8x8_dc_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
35 void ff_vc1_inv_trans_8x4_dc_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
36 void ff_vc1_inv_trans_4x8_dc_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
37 void ff_vc1_inv_trans_4x4_dc_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block);
38 
39 void ff_vc1_v_loop_filter4_neon(uint8_t *src, ptrdiff_t stride, int pq);
40 void ff_vc1_h_loop_filter4_neon(uint8_t *src, ptrdiff_t stride, int pq);
41 void ff_vc1_v_loop_filter8_neon(uint8_t *src, ptrdiff_t stride, int pq);
42 void ff_vc1_h_loop_filter8_neon(uint8_t *src, ptrdiff_t stride, int pq);
43 void ff_vc1_v_loop_filter16_neon(uint8_t *src, ptrdiff_t stride, int pq);
44 void ff_vc1_h_loop_filter16_neon(uint8_t *src, ptrdiff_t stride, int pq);
45 
46 void ff_put_vc1_chroma_mc8_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride,
47  int h, int x, int y);
48 void ff_avg_vc1_chroma_mc8_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride,
49  int h, int x, int y);
50 void ff_put_vc1_chroma_mc4_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride,
51  int h, int x, int y);
52 void ff_avg_vc1_chroma_mc4_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride,
53  int h, int x, int y);
54 
55 int ff_vc1_unescape_buffer_helper_neon(const uint8_t *src, int size, uint8_t *dst);
56 
57 static int vc1_unescape_buffer_neon(const uint8_t *src, int size, uint8_t *dst)
58 {
59  /* Dealing with starting and stopping, and removing escape bytes, are
60  * comparatively less time-sensitive, so are more clearly expressed using
61  * a C wrapper around the assembly inner loop. Note that we assume a
62  * little-endian machine that supports unaligned loads. */
63  int dsize = 0;
64  while (size >= 4)
65  {
66  int found = 0;
67  while (!found && (((uintptr_t) dst) & 7) && size >= 4)
68  {
69  found = (AV_RL32(src) &~ 0x03000000) == 0x00030000;
70  if (!found)
71  {
72  *dst++ = *src++;
73  --size;
74  ++dsize;
75  }
76  }
77  if (!found)
78  {
79  int skip = size - ff_vc1_unescape_buffer_helper_neon(src, size, dst);
80  dst += skip;
81  src += skip;
82  size -= skip;
83  dsize += skip;
84  while (!found && size >= 4)
85  {
86  found = (AV_RL32(src) &~ 0x03000000) == 0x00030000;
87  if (!found)
88  {
89  *dst++ = *src++;
90  --size;
91  ++dsize;
92  }
93  }
94  }
95  if (found)
96  {
97  *dst++ = *src++;
98  *dst++ = *src++;
99  ++src;
100  size -= 3;
101  dsize += 2;
102  }
103  }
104  while (size > 0)
105  {
106  *dst++ = *src++;
107  --size;
108  ++dsize;
109  }
110  return dsize;
111 }
112 
114 {
115  int cpu_flags = av_get_cpu_flags();
116 
117  if (have_neon(cpu_flags)) {
126 
133 
138 
140  }
141 }
VC1DSPContext::vc1_v_loop_filter16
void(* vc1_v_loop_filter16)(uint8_t *src, ptrdiff_t stride, int pq)
Definition: vc1dsp.h:53
ff_avg_vc1_chroma_mc8_neon
void ff_avg_vc1_chroma_mc8_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride, int h, int x, int y)
vc1dsp.h
ff_vc1dsp_init_aarch64
av_cold void ff_vc1dsp_init_aarch64(VC1DSPContext *dsp)
Definition: vc1dsp_init_aarch64.c:113
ff_vc1_inv_trans_4x4_neon
void ff_vc1_inv_trans_4x4_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block)
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_no_rnd_vc1_chroma_pixels_tab
h264_chroma_mc_func avg_no_rnd_vc1_chroma_pixels_tab[3]
Definition: vc1dsp.h:64
ff_vc1_v_loop_filter4_neon
void ff_vc1_v_loop_filter4_neon(uint8_t *src, ptrdiff_t stride, int pq)
ff_vc1_inv_trans_4x4_dc_neon
void ff_vc1_inv_trans_4x4_dc_neon(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:101
VC1DSPContext::put_no_rnd_vc1_chroma_pixels_tab
h264_chroma_mc_func put_no_rnd_vc1_chroma_pixels_tab[3]
Definition: vc1dsp.h:63
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
cpu_flags
static atomic_int cpu_flags
Definition: cpu.c:52
VC1DSPContext::vc1_v_loop_filter4
void(* vc1_v_loop_filter4)(uint8_t *src, ptrdiff_t stride, int pq)
Definition: vc1dsp.h:49
vc1_unescape_buffer_neon
static int vc1_unescape_buffer_neon(const uint8_t *src, int size, uint8_t *dst)
Definition: vc1dsp_init_aarch64.c:57
ff_vc1_inv_trans_4x8_neon
void ff_vc1_inv_trans_4x8_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block)
ff_avg_vc1_chroma_mc4_neon
void ff_avg_vc1_chroma_mc4_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride, int h, int x, int y)
VC1DSPContext::vc1_h_loop_filter4
void(* vc1_h_loop_filter4)(uint8_t *src, ptrdiff_t stride, int pq)
Definition: vc1dsp.h:50
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_vc1_v_loop_filter16_neon
void ff_vc1_v_loop_filter16_neon(uint8_t *src, ptrdiff_t stride, int pq)
VC1DSPContext::vc1_h_loop_filter16
void(* vc1_h_loop_filter16)(uint8_t *src, ptrdiff_t stride, int pq)
Definition: vc1dsp.h:54
ff_put_vc1_chroma_mc4_neon
void ff_put_vc1_chroma_mc4_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride, int h, int x, int y)
intreadwrite.h
ff_vc1_unescape_buffer_helper_neon
int ff_vc1_unescape_buffer_helper_neon(const uint8_t *src, int size, uint8_t *dst)
ff_vc1_inv_trans_8x8_dc_neon
void ff_vc1_inv_trans_8x8_dc_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block)
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_inv_trans_8x8_neon
void ff_vc1_inv_trans_8x8_neon(int16_t *block)
ff_put_vc1_chroma_mc8_neon
void ff_put_vc1_chroma_mc8_neon(uint8_t *dst, const uint8_t *src, ptrdiff_t stride, int h, int x, int y)
ff_vc1_h_loop_filter16_neon
void ff_vc1_h_loop_filter16_neon(uint8_t *src, ptrdiff_t stride, int pq)
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
cpu.h
size
int size
Definition: twinvq_data.h:10344
ff_vc1_inv_trans_4x8_dc_neon
void ff_vc1_inv_trans_4x8_dc_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block)
ff_vc1_h_loop_filter8_neon
void ff_vc1_h_loop_filter8_neon(uint8_t *src, ptrdiff_t stride, int pq)
have_neon
#define have_neon(flags)
Definition: cpu.h:26
attributes.h
VC1DSPContext::vc1_inv_trans_8x8
void(* vc1_inv_trans_8x8)(int16_t *b)
Definition: vc1dsp.h:37
VC1DSPContext::vc1_unescape_buffer
int(* vc1_unescape_buffer)(const uint8_t *src, int size, uint8_t *dst)
Definition: vc1dsp.h:85
ff_vc1_inv_trans_8x4_neon
void ff_vc1_inv_trans_8x4_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block)
ff_vc1_v_loop_filter8_neon
void ff_vc1_v_loop_filter8_neon(uint8_t *src, ptrdiff_t stride, int pq)
ff_vc1_inv_trans_8x4_dc_neon
void ff_vc1_inv_trans_8x4_dc_neon(uint8_t *dest, ptrdiff_t stride, int16_t *block)
stride
#define stride
Definition: h264pred_template.c:537
VC1DSPContext
Definition: vc1dsp.h:35
VC1DSPContext::vc1_h_loop_filter8
void(* vc1_h_loop_filter8)(uint8_t *src, ptrdiff_t stride, int pq)
Definition: vc1dsp.h:52
AV_RL32
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
Definition: bytestream.h:92
VC1DSPContext::vc1_v_loop_filter8
void(* vc1_v_loop_filter8)(uint8_t *src, ptrdiff_t stride, int pq)
Definition: vc1dsp.h:51
src
INIT_CLIP pixel * src
Definition: h264pred_template.c:418
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207
h
h
Definition: vp9dsp_template.c:2038
cpu.h
VC1DSPContext::vc1_inv_trans_4x8
void(* vc1_inv_trans_4x8)(uint8_t *dest, ptrdiff_t stride, int16_t *block)
Definition: vc1dsp.h:39
ff_vc1_h_loop_filter4_neon
void ff_vc1_h_loop_filter4_neon(uint8_t *src, ptrdiff_t stride, int pq)