mirror of
https://github.com/FFmpeg/FFmpeg.git
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df13b75aa1
Performance of mpeg4 decoding improved about 23%(from 128fps to 158fps, tested on loongson 3A3000). Reoptimized following functions with mmi. 1. ff_simple_idct_put_8_mmi 2. ff_simple_idct_add_8_mmi 3. ff_simple_idct_8_mmi Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
75 lines
2.8 KiB
C
75 lines
2.8 KiB
C
/*
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* Copyright (c) 2015 Manojkumar Bhosale (Manojkumar.Bhosale@imgtec.com)
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* Zhou Xiaoyong <zhouxiaoyong@loongson.cn>
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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 "idctdsp_mips.h"
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#include "xvididct_mips.h"
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#if HAVE_MSA
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static av_cold void idctdsp_init_msa(IDCTDSPContext *c, AVCodecContext *avctx,
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unsigned high_bit_depth)
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{
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if ((avctx->lowres != 1) && (avctx->lowres != 2) && (avctx->lowres != 3) &&
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(avctx->bits_per_raw_sample != 10) &&
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(avctx->bits_per_raw_sample != 12) &&
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(avctx->idct_algo == FF_IDCT_AUTO)) {
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c->idct_put = ff_simple_idct_put_msa;
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c->idct_add = ff_simple_idct_add_msa;
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c->idct = ff_simple_idct_msa;
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c->perm_type = FF_IDCT_PERM_NONE;
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}
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c->put_pixels_clamped = ff_put_pixels_clamped_msa;
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c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_msa;
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c->add_pixels_clamped = ff_add_pixels_clamped_msa;
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}
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#endif // #if HAVE_MSA
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#if HAVE_MMI
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static av_cold void idctdsp_init_mmi(IDCTDSPContext *c, AVCodecContext *avctx,
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unsigned high_bit_depth)
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{
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if ((avctx->lowres != 1) && (avctx->lowres != 2) && (avctx->lowres != 3) &&
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(avctx->bits_per_raw_sample != 10) &&
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(avctx->bits_per_raw_sample != 12) &&
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((avctx->idct_algo == FF_IDCT_AUTO) || (avctx->idct_algo == FF_IDCT_SIMPLE))) {
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c->idct_put = ff_simple_idct_put_8_mmi;
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c->idct_add = ff_simple_idct_add_8_mmi;
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c->idct = ff_simple_idct_8_mmi;
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c->perm_type = FF_IDCT_PERM_NONE;
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}
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c->put_pixels_clamped = ff_put_pixels_clamped_mmi;
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c->add_pixels_clamped = ff_add_pixels_clamped_mmi;
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c->put_signed_pixels_clamped = ff_put_signed_pixels_clamped_mmi;
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}
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#endif /* HAVE_MMI */
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av_cold void ff_idctdsp_init_mips(IDCTDSPContext *c, AVCodecContext *avctx,
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unsigned high_bit_depth)
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{
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#if HAVE_MSA
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idctdsp_init_msa(c, avctx, high_bit_depth);
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#endif // #if HAVE_MSA
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#if HAVE_MMI
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idctdsp_init_mmi(c, avctx, high_bit_depth);
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#endif /* HAVE_MMI */
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}
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