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/* |
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* Monkey's Audio lossless audio decoder |
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* Copyright (c) 2007 Benjamin Zores <ben@geexbox.org> |
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* based upon libdemac from Dave Chapman. |
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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 "avcodec.h" |
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#include "lossless_audiodsp.h" |
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3471360 |
static int32_t scalarproduct_and_madd_int16_c(int16_t *v1, const int16_t *v2, |
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const int16_t *v3, |
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int order, int mul) |
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{ |
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3471360 |
int res = 0; |
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do { |
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86163456 |
res += *v1 * *v2++; |
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86163456 |
*v1++ += mul * *v3++; |
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86163456 |
res += *v1 * *v2++; |
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86163456 |
*v1++ += mul * *v3++; |
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✓✓ |
86163456 |
} while (order-=2); |
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3471360 |
return res; |
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} |
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static int32_t scalarproduct_and_madd_int32_c(int16_t *v1, const int32_t *v2, |
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const int16_t *v3, |
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int order, int mul) |
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{ |
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208896 |
int res = 0; |
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do { |
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983040 |
res += *v1 * (uint32_t)*v2++; |
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983040 |
*v1++ += mul * *v3++; |
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983040 |
res += *v1 * (uint32_t)*v2++; |
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983040 |
*v1++ += mul * *v3++; |
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✓✓ |
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} while (order-=2); |
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208896 |
return res; |
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} |
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av_cold void ff_llauddsp_init(LLAudDSPContext *c) |
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{ |
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c->scalarproduct_and_madd_int16 = scalarproduct_and_madd_int16_c; |
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c->scalarproduct_and_madd_int32 = scalarproduct_and_madd_int32_c; |
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if (ARCH_ARM) |
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ff_llauddsp_init_arm(c); |
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if (ARCH_PPC) |
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ff_llauddsp_init_ppc(c); |
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if (ARCH_X86) |
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ff_llauddsp_init_x86(c); |
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} |