FFmpeg
videodsp.c
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1 /*
2  * Copyright (C) 2012 Ronald S. Bultje
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 "libavutil/attributes.h"
22 #include "libavutil/avassert.h"
23 #include "libavutil/common.h"
24 #include "videodsp.h"
25 
26 #define BIT_DEPTH 8
27 #include "videodsp_template.c"
28 #undef BIT_DEPTH
29 
30 #define BIT_DEPTH 16
31 #include "videodsp_template.c"
32 #undef BIT_DEPTH
33 
34 static void just_return(uint8_t *buf, ptrdiff_t stride, int h)
35 {
36 }
37 
39 {
40  ctx->prefetch = just_return;
41  if (bpc <= 8) {
42  ctx->emulated_edge_mc = ff_emulated_edge_mc_8;
43  } else {
44  ctx->emulated_edge_mc = ff_emulated_edge_mc_16;
45  }
46 
47  if (ARCH_AARCH64)
48  ff_videodsp_init_aarch64(ctx, bpc);
49  if (ARCH_ARM)
50  ff_videodsp_init_arm(ctx, bpc);
51  if (ARCH_PPC)
52  ff_videodsp_init_ppc(ctx, bpc);
53  if (ARCH_X86)
54  ff_videodsp_init_x86(ctx, bpc);
55  if (ARCH_MIPS)
56  ff_videodsp_init_mips(ctx, bpc);
57 }
av_cold void ff_videodsp_init(VideoDSPContext *ctx, int bpc)
Definition: videodsp.c:38
void(* prefetch)(uint8_t *buf, ptrdiff_t stride, int h)
Prefetch memory into cache (if supported by hardware).
Definition: videodsp.h:76
Macro definitions for various function/variable attributes.
void(* emulated_edge_mc)(uint8_t *dst, const uint8_t *src, ptrdiff_t dst_linesize, ptrdiff_t src_linesize, int block_w, int block_h, int src_x, int src_y, int w, int h)
Copy a rectangular area of samples to a temporary buffer and replicate the border samples...
Definition: videodsp.h:63
uint8_t
#define av_cold
Definition: attributes.h:82
static void just_return(uint8_t *buf, ptrdiff_t stride, int h)
Definition: videodsp.c:34
simple assert() macros that are a bit more flexible than ISO C assert().
AVFormatContext * ctx
Definition: movenc.c:48
av_cold void ff_videodsp_init_ppc(VideoDSPContext *ctx, int bpc)
Definition: videodsp.c:33
av_cold void ff_videodsp_init_aarch64(VideoDSPContext *ctx, int bpc)
Definition: videodsp_init.c:26
av_cold void ff_videodsp_init_mips(VideoDSPContext *ctx, int bpc)
Definition: videodsp_init.c:46
void * buf
Definition: avisynth_c.h:766
void ff_videodsp_init_x86(VideoDSPContext *ctx, int bpc)
GLint GLenum GLboolean GLsizei stride
Definition: opengl_enc.c:104
common internal and external API header
Core video DSP helper functions.
av_cold void ff_videodsp_init_arm(VideoDSPContext *ctx, int bpc)