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https://github.com/FFmpeg/FFmpeg.git
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5eaaffaf64
These tables are static so they should only be initialized once instead of on every call to ff_mpadsp_init(). Signed-off-by: Dale Curtis <dalecurtis@chromium.org> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
55 lines
1.9 KiB
C
55 lines
1.9 KiB
C
/*
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* Copyright (c) 2011 Mans Rullgard
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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/thread.h"
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#include "mpegaudiodsp.h"
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#include "dct.h"
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#include "dct32.h"
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static AVOnce mpadsp_float_table_init = AV_ONCE_INIT;
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static AVOnce mpadsp_fixed_table_init = AV_ONCE_INIT;
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av_cold void ff_mpadsp_init(MPADSPContext *s)
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{
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DCTContext dct;
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ff_dct_init(&dct, 5, DCT_II);
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ff_thread_once(&mpadsp_float_table_init, &ff_init_mpadsp_tabs_float);
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ff_thread_once(&mpadsp_fixed_table_init, &ff_init_mpadsp_tabs_fixed);
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s->apply_window_float = ff_mpadsp_apply_window_float;
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s->apply_window_fixed = ff_mpadsp_apply_window_fixed;
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s->dct32_float = dct.dct32;
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s->dct32_fixed = ff_dct32_fixed;
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s->imdct36_blocks_float = ff_imdct36_blocks_float;
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s->imdct36_blocks_fixed = ff_imdct36_blocks_fixed;
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if (ARCH_AARCH64) ff_mpadsp_init_aarch64(s);
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if (ARCH_ARM) ff_mpadsp_init_arm(s);
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if (ARCH_PPC) ff_mpadsp_init_ppc(s);
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if (ARCH_X86) ff_mpadsp_init_x86(s);
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if (HAVE_MIPSFPU) ff_mpadsp_init_mipsfpu(s);
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if (HAVE_MIPSDSP) ff_mpadsp_init_mipsdsp(s);
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}
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