ffmpeg-2.8.5
git-svn-id: svn://kolibrios.org@6147 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge)
111
contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/mips/lsp_mips.h
Normal file
111
contrib/sdk/sources/ffmpeg/ffmpeg-2.8/libavcodec/mips/lsp_mips.h
Normal file
@@ -0,0 +1,111 @@
|
||||
/*
|
||||
* Copyright (c) 2012
|
||||
* MIPS Technologies, Inc., California.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. Neither the name of the MIPS Technologies, Inc., nor the names of its
|
||||
* contributors may be used to endorse or promote products derived from
|
||||
* this software without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* Author: Nedeljko Babic (nbabic@mips.com)
|
||||
*
|
||||
* LSP routines for ACELP-based codecs optimized for MIPS
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU Lesser General Public
|
||||
* License as published by the Free Software Foundation; either
|
||||
* version 2.1 of the License, or (at your option) any later version.
|
||||
*
|
||||
* FFmpeg is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
* Lesser General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU Lesser General Public
|
||||
* License along with FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
/**
|
||||
* @file
|
||||
* Reference: libavcodec/lsp.c
|
||||
*/
|
||||
#ifndef AVCODEC_LSP_MIPS_H
|
||||
#define AVCODEC_LSP_MIPS_H
|
||||
|
||||
#if HAVE_MIPSFPU && HAVE_INLINE_ASM
|
||||
#include "libavutil/mips/asmdefs.h"
|
||||
|
||||
static av_always_inline void ff_lsp2polyf_mips(const double *lsp, double *f, int lp_half_order)
|
||||
{
|
||||
int i, j = 0;
|
||||
double * p_fi = f;
|
||||
double * p_f = 0;
|
||||
|
||||
f[0] = 1.0;
|
||||
f[1] = -2 * lsp[0];
|
||||
lsp -= 2;
|
||||
|
||||
for(i=2; i<=lp_half_order; i++)
|
||||
{
|
||||
double tmp, f_j_2, f_j_1, f_j;
|
||||
double val = lsp[2*i];
|
||||
|
||||
__asm__ volatile(
|
||||
"move %[p_f], %[p_fi] \n\t"
|
||||
"add.d %[val], %[val], %[val] \n\t"
|
||||
PTR_ADDIU "%[p_fi], 8 \n\t"
|
||||
"ldc1 %[f_j_1], 0(%[p_f]) \n\t"
|
||||
"ldc1 %[f_j], 8(%[p_f]) \n\t"
|
||||
"neg.d %[val], %[val] \n\t"
|
||||
"add.d %[tmp], %[f_j_1], %[f_j_1] \n\t"
|
||||
"madd.d %[tmp], %[tmp], %[f_j], %[val] \n\t"
|
||||
"addiu %[j], %[i], -2 \n\t"
|
||||
"ldc1 %[f_j_2], -8(%[p_f]) \n\t"
|
||||
"sdc1 %[tmp], 16(%[p_f]) \n\t"
|
||||
"beqz %[j], ff_lsp2polyf_lp_j_end%= \n\t"
|
||||
"ff_lsp2polyf_lp_j%=: \n\t"
|
||||
"add.d %[tmp], %[f_j], %[f_j_2] \n\t"
|
||||
"madd.d %[tmp], %[tmp], %[f_j_1], %[val] \n\t"
|
||||
"mov.d %[f_j], %[f_j_1] \n\t"
|
||||
"addiu %[j], -1 \n\t"
|
||||
"mov.d %[f_j_1], %[f_j_2] \n\t"
|
||||
"ldc1 %[f_j_2], -16(%[p_f]) \n\t"
|
||||
"sdc1 %[tmp], 8(%[p_f]) \n\t"
|
||||
PTR_ADDIU "%[p_f], -8 \n\t"
|
||||
"bgtz %[j], ff_lsp2polyf_lp_j%= \n\t"
|
||||
"ff_lsp2polyf_lp_j_end%=: \n\t"
|
||||
|
||||
: [f_j_2]"=&f"(f_j_2), [f_j_1]"=&f"(f_j_1), [val]"+f"(val),
|
||||
[tmp]"=&f"(tmp), [f_j]"=&f"(f_j), [p_f]"+r"(p_f),
|
||||
[j]"+r"(j), [p_fi]"+r"(p_fi)
|
||||
: [i]"r"(i)
|
||||
: "memory"
|
||||
);
|
||||
f[1] += val;
|
||||
}
|
||||
}
|
||||
#define ff_lsp2polyf ff_lsp2polyf_mips
|
||||
#endif /* HAVE_MIPSFPU && HAVE_INLINE_ASM */
|
||||
#endif /* AVCODEC_LSP_MIPS_H */
|
||||
Reference in New Issue
Block a user