FFmpeg
libavcodec
x86
dnxhdenc_init.c
Go to the documentation of this file.
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/*
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* VC3/DNxHD SIMD functions
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* Copyright (c) 2007 Baptiste Coudurier <baptiste dot coudurier at smartjog dot com>
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*
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* VC-3 encoder funded by the British Broadcasting Corporation
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "
libavutil/attributes.h
"
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#include "
libavutil/x86/cpu.h
"
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#include "
libavcodec/dnxhdenc.h
"
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void
ff_get_pixels_8x4_sym_sse2
(int16_t *
block
,
const
uint8_t *pixels,
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ptrdiff_t line_size);
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av_cold
void
ff_dnxhdenc_init_x86
(
DNXHDEncContext
*
ctx
)
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{
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if
(
EXTERNAL_SSE2
(
av_get_cpu_flags
())) {
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if
(
ctx
->cid_table->bit_depth == 8)
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ctx
->get_pixels_8x4_sym =
ff_get_pixels_8x4_sym_sse2
;
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}
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}
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:107
DNXHDEncContext
Definition:
dnxhdenc.h:44
av_cold
#define av_cold
Definition:
attributes.h:90
ctx
AVFormatContext * ctx
Definition:
movenc.c:49
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
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