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libavcodec
arm
h264dsp_init_arm.c
Go to the documentation of this file.
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/*
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* Copyright (c) 2010 Mans Rullgard <mans@mansr.com>
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*
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* This file is part of Libav.
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*
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* Libav 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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* Libav 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 Libav; 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 <stdint.h>
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#include "
libavutil/attributes.h
"
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#include "
libavutil/arm/cpu.h
"
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#include "
libavcodec/h264dsp.h
"
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int
ff_h264_find_start_code_candidate_armv6
(
const
uint8_t
*buf,
int
size
);
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void
ff_h264_v_loop_filter_luma_neon
(
uint8_t
*pix,
int
stride
,
int
alpha,
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int
beta, int8_t *tc0);
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void
ff_h264_h_loop_filter_luma_neon
(
uint8_t
*pix,
int
stride
,
int
alpha,
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int
beta, int8_t *tc0);
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void
ff_h264_v_loop_filter_chroma_neon
(
uint8_t
*pix,
int
stride
,
int
alpha,
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int
beta, int8_t *tc0);
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void
ff_h264_h_loop_filter_chroma_neon
(
uint8_t
*pix,
int
stride
,
int
alpha,
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int
beta, int8_t *tc0);
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void
ff_weight_h264_pixels_16_neon
(
uint8_t
*dst,
int
stride
,
int
height
,
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int
log2_den,
int
weight,
int
offset);
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void
ff_weight_h264_pixels_8_neon
(
uint8_t
*dst,
int
stride
,
int
height
,
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int
log2_den,
int
weight,
int
offset);
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void
ff_weight_h264_pixels_4_neon
(
uint8_t
*dst,
int
stride
,
int
height
,
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int
log2_den,
int
weight,
int
offset);
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void
ff_biweight_h264_pixels_16_neon
(
uint8_t
*dst,
uint8_t
*src,
int
stride
,
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int
height
,
int
log2_den,
int
weightd,
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int
weights,
int
offset);
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void
ff_biweight_h264_pixels_8_neon
(
uint8_t
*dst,
uint8_t
*src,
int
stride
,
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int
height
,
int
log2_den,
int
weightd,
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int
weights,
int
offset);
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void
ff_biweight_h264_pixels_4_neon
(
uint8_t
*dst,
uint8_t
*src,
int
stride
,
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int
height
,
int
log2_den,
int
weightd,
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int
weights,
int
offset);
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void
ff_h264_idct_add_neon
(
uint8_t
*dst, int16_t *
block
,
int
stride
);
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void
ff_h264_idct_dc_add_neon
(
uint8_t
*dst, int16_t *
block
,
int
stride
);
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void
ff_h264_idct_add16_neon
(
uint8_t
*dst,
const
int
*block_offset,
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int16_t *
block
,
int
stride
,
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const
uint8_t
nnzc[6*8]);
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void
ff_h264_idct_add16intra_neon
(
uint8_t
*dst,
const
int
*block_offset,
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int16_t *
block
,
int
stride
,
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const
uint8_t
nnzc[6*8]);
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void
ff_h264_idct_add8_neon
(
uint8_t
**dest,
const
int
*block_offset,
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int16_t *
block
,
int
stride
,
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const
uint8_t
nnzc[6*8]);
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void
ff_h264_idct8_add_neon
(
uint8_t
*dst, int16_t *
block
,
int
stride
);
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void
ff_h264_idct8_dc_add_neon
(
uint8_t
*dst, int16_t *
block
,
int
stride
);
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void
ff_h264_idct8_add4_neon
(
uint8_t
*dst,
const
int
*block_offset,
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int16_t *
block
,
int
stride
,
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const
uint8_t
nnzc[6*8]);
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static
av_cold
void
h264dsp_init_neon
(
H264DSPContext
*c,
const
int
bit_depth,
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const
int
chroma_format_idc)
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{
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if
(bit_depth == 8) {
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c->
h264_v_loop_filter_luma
=
ff_h264_v_loop_filter_luma_neon
;
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c->
h264_h_loop_filter_luma
=
ff_h264_h_loop_filter_luma_neon
;
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c->
h264_v_loop_filter_chroma
=
ff_h264_v_loop_filter_chroma_neon
;
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c->
h264_h_loop_filter_chroma
=
ff_h264_h_loop_filter_chroma_neon
;
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c->
weight_h264_pixels_tab
[0] =
ff_weight_h264_pixels_16_neon
;
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c->
weight_h264_pixels_tab
[1] =
ff_weight_h264_pixels_8_neon
;
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c->
weight_h264_pixels_tab
[2] =
ff_weight_h264_pixels_4_neon
;
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c->
biweight_h264_pixels_tab
[0] =
ff_biweight_h264_pixels_16_neon
;
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c->
biweight_h264_pixels_tab
[1] =
ff_biweight_h264_pixels_8_neon
;
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c->
biweight_h264_pixels_tab
[2] =
ff_biweight_h264_pixels_4_neon
;
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c->
h264_idct_add
=
ff_h264_idct_add_neon
;
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c->
h264_idct_dc_add
=
ff_h264_idct_dc_add_neon
;
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c->
h264_idct_add16
=
ff_h264_idct_add16_neon
;
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c->
h264_idct_add16intra
=
ff_h264_idct_add16intra_neon
;
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if
(chroma_format_idc <= 1)
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c->
h264_idct_add8
=
ff_h264_idct_add8_neon
;
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c->
h264_idct8_add
=
ff_h264_idct8_add_neon
;
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c->
h264_idct8_dc_add
=
ff_h264_idct8_dc_add_neon
;
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c->
h264_idct8_add4
=
ff_h264_idct8_add4_neon
;
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}
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}
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av_cold
void
ff_h264dsp_init_arm
(
H264DSPContext
*c,
const
int
bit_depth,
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const
int
chroma_format_idc)
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{
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int
cpu_flags
=
av_get_cpu_flags
();
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if
(
have_armv6
(cpu_flags))
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c->
h264_find_start_code_candidate
=
ff_h264_find_start_code_candidate_armv6
;
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if
(
have_neon
(cpu_flags))
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h264dsp_init_neon
(c, bit_depth, chroma_format_idc);
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}
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