FFmpeg
dnxhdenc_init.c
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1 /*
2  * VC3/DNxHD SIMD functions
3  * Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
4  *
5  * VC-3 encoder funded by the British Broadcasting Corporation
6  *
7  * This file is part of FFmpeg.
8  *
9  * FFmpeg is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU Lesser General Public
11  * License as published by the Free Software Foundation; either
12  * version 2.1 of the License, or (at your option) any later version.
13  *
14  * FFmpeg is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17  * Lesser General Public License for more details.
18  *
19  * You should have received a copy of the GNU Lesser General Public
20  * License along with FFmpeg; if not, write to the Free Software
21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22  */
23 
24 #include "libavutil/attributes.h"
25 #include "libavutil/x86/cpu.h"
26 #include "libavcodec/dnxhdenc.h"
27 
28 void ff_get_pixels_8x4_sym_sse2(int16_t *block, const uint8_t *pixels,
29  ptrdiff_t line_size);
30 
32 {
34  if (ctx->cid_table->bit_depth == 8)
35  ctx->get_pixels_8x4_sym = ff_get_pixels_8x4_sym_sse2;
36  }
37 }
ff_dnxhdenc_init_x86
av_cold void ff_dnxhdenc_init_x86(DNXHDEncContext *ctx)
Definition: dnxhdenc_init.c:31
cpu.h
dnxhdenc.h
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:96
DNXHDEncContext
Definition: dnxhdenc.h:46
av_cold
#define av_cold
Definition: attributes.h:90
ctx
AVFormatContext * ctx
Definition: movenc.c:48
attributes.h
EXTERNAL_SSE2
#define EXTERNAL_SSE2(flags)
Definition: cpu.h:59
ff_get_pixels_8x4_sym_sse2
void ff_get_pixels_8x4_sym_sse2(int16_t *block, const uint8_t *pixels, ptrdiff_t line_size)
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition: filter_design.txt:207