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libavcodec
ppc
h264chroma_init.c
Go to the documentation of this file.
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/*
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* Copyright (c) 2004 Romain Dolbeau <romain@dolbeau.org>
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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 "config.h"
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#include "
libavutil/attributes.h
"
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#include "
libavutil/cpu.h
"
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#include "
libavutil/intreadwrite.h
"
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#include "
libavutil/ppc/cpu.h
"
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#include "
libavutil/ppc/types_altivec.h
"
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#include "
libavutil/ppc/util_altivec.h
"
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#include "
libavcodec/h264chroma.h
"
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#if HAVE_ALTIVEC
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#define PUT_OP_U8_ALTIVEC(d, s, dst) d = s
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#define AVG_OP_U8_ALTIVEC(d, s, dst) d = vec_avg(dst, s)
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#define OP_U8_ALTIVEC PUT_OP_U8_ALTIVEC
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#define PREFIX_h264_chroma_mc8_altivec put_h264_chroma_mc8_altivec
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#define PREFIX_h264_chroma_mc8_num altivec_put_h264_chroma_mc8_num
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#include "h264chroma_template.c"
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#undef OP_U8_ALTIVEC
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#undef PREFIX_h264_chroma_mc8_altivec
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#undef PREFIX_h264_chroma_mc8_num
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#define OP_U8_ALTIVEC AVG_OP_U8_ALTIVEC
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#define PREFIX_h264_chroma_mc8_altivec avg_h264_chroma_mc8_altivec
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#define PREFIX_h264_chroma_mc8_num altivec_avg_h264_chroma_mc8_num
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#include "h264chroma_template.c"
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#undef OP_U8_ALTIVEC
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#undef PREFIX_h264_chroma_mc8_altivec
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#undef PREFIX_h264_chroma_mc8_num
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#endif
/* HAVE_ALTIVEC */
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av_cold
void
ff_h264chroma_init_ppc
(
H264ChromaContext
*
c
,
int
bit_depth
)
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{
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#if HAVE_ALTIVEC
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const
int
high_bit_depth = bit_depth > 8;
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if
(!
PPC_ALTIVEC
(
av_get_cpu_flags
()))
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return
;
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if
(!high_bit_depth) {
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c->
put_h264_chroma_pixels_tab
[0] = put_h264_chroma_mc8_altivec;
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c->
avg_h264_chroma_pixels_tab
[0] = avg_h264_chroma_mc8_altivec;
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}
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#endif
/* HAVE_ALTIVEC */
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}
cpu.h
ff_h264chroma_init_ppc
av_cold void ff_h264chroma_init_ppc(H264ChromaContext *c, int bit_depth)
Definition:
h264chroma_init.c:51
H264ChromaContext::put_h264_chroma_pixels_tab
h264_chroma_mc_func put_h264_chroma_pixels_tab[4]
Definition:
h264chroma.h:27
h264chroma.h
attributes.h
Macro definitions for various function/variable attributes.
av_cold
#define av_cold
Definition:
attributes.h:74
H264ChromaContext
Definition:
h264chroma.h:26
PPC_ALTIVEC
#define PPC_ALTIVEC(flags)
Definition:
cpu.h:26
intreadwrite.h
types_altivec.h
cpu.h
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:76
util_altivec.h
Contains misc utility macros and inline functions.
c
static double c[64]
Definition:
vsrc_mptestsrc.c:87
bit_depth
static unsigned bit_depth(uint64_t mask)
Definition:
af_astats.c:128
H264ChromaContext::avg_h264_chroma_pixels_tab
h264_chroma_mc_func avg_h264_chroma_pixels_tab[4]
Definition:
h264chroma.h:28
Generated on Mon May 27 2019 05:58:42 for FFmpeg by
1.8.8