FFmpeg
libavcodec
x86
proresdsp_init.c
Go to the documentation of this file.
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/*
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* Apple ProRes compatible decoder
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*
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* Copyright (c) 2010-2011 Maxim Poliakovski
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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/idctdsp.h
"
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#include "
libavcodec/proresdsp.h
"
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void
ff_prores_idct_put_10_sse2
(uint16_t *dst, ptrdiff_t linesize,
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int16_t *
block
,
const
int16_t *qmat);
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void
ff_prores_idct_put_10_avx
(uint16_t *dst, ptrdiff_t linesize,
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int16_t *
block
,
const
int16_t *qmat);
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av_cold
void
ff_proresdsp_init_x86
(
ProresDSPContext
*dsp,
AVCodecContext
*avctx)
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{
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#if ARCH_X86_64
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int
cpu_flags
=
av_get_cpu_flags
();
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if
(avctx->
bits_per_raw_sample
== 10){
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if
(
EXTERNAL_SSE2
(
cpu_flags
)) {
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dsp->
idct_permutation_type
=
FF_IDCT_PERM_TRANSPOSE
;
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dsp->
idct_put
=
ff_prores_idct_put_10_sse2
;
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}
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if
(
EXTERNAL_AVX
(
cpu_flags
)) {
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dsp->
idct_permutation_type
=
FF_IDCT_PERM_TRANSPOSE
;
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dsp->
idct_put
=
ff_prores_idct_put_10_avx
;
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}
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}
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#endif
/* ARCH_X86_64 */
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}
cpu.h
ProresDSPContext::idct_permutation_type
int idct_permutation_type
Definition:
proresdsp.h:31
ff_proresdsp_init_x86
av_cold void ff_proresdsp_init_x86(ProresDSPContext *dsp, AVCodecContext *avctx)
Definition:
proresdsp_init.c:33
av_get_cpu_flags
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition:
cpu.c:101
cpu_flags
static atomic_int cpu_flags
Definition:
cpu.c:52
ProresDSPContext
Definition:
proresdsp.h:30
av_cold
#define av_cold
Definition:
attributes.h:90
AVCodecContext::bits_per_raw_sample
int bits_per_raw_sample
Bits per sample/pixel of internal libavcodec pixel/sample format.
Definition:
avcodec.h:1448
ff_prores_idct_put_10_avx
void ff_prores_idct_put_10_avx(uint16_t *dst, ptrdiff_t linesize, int16_t *block, const int16_t *qmat)
attributes.h
EXTERNAL_SSE2
#define EXTERNAL_SSE2(flags)
Definition:
cpu.h:59
proresdsp.h
ff_prores_idct_put_10_sse2
void ff_prores_idct_put_10_sse2(uint16_t *dst, ptrdiff_t linesize, int16_t *block, const int16_t *qmat)
idctdsp.h
EXTERNAL_AVX
#define EXTERNAL_AVX(flags)
Definition:
cpu.h:70
FF_IDCT_PERM_TRANSPOSE
@ FF_IDCT_PERM_TRANSPOSE
Definition:
idctdsp.h:41
AVCodecContext
main external API structure.
Definition:
avcodec.h:389
block
The exact code depends on how similar the blocks are and how related they are to the block
Definition:
filter_design.txt:207
ProresDSPContext::idct_put
void(* idct_put)(uint16_t *out, ptrdiff_t linesize, int16_t *block, const int16_t *qmat)
Definition:
proresdsp.h:33
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