mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
187 lines
10 KiB
187 lines
10 KiB
/* |
|
* 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) |
|
* |
|
* 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/amrwbdec.c |
|
*/ |
|
#include "libavutil/avutil.h" |
|
#include "libavcodec/amrwbdata.h" |
|
#include "amrwbdec_mips.h" |
|
|
|
#if HAVE_INLINE_ASM |
|
void hb_fir_filter_mips(float *out, const float fir_coef[HB_FIR_SIZE + 1], |
|
float mem[HB_FIR_SIZE], const float *in) |
|
{ |
|
int i; |
|
float data[AMRWB_SFR_SIZE_16k + HB_FIR_SIZE]; // past and current samples |
|
|
|
memcpy(data, mem, HB_FIR_SIZE * sizeof(float)); |
|
memcpy(data + HB_FIR_SIZE, in, AMRWB_SFR_SIZE_16k * sizeof(float)); |
|
|
|
for (i = 0; i < AMRWB_SFR_SIZE_16k; i++) { |
|
float output; |
|
float * p_data = (data+i); |
|
|
|
/** |
|
* inner loop is entirely unrolled and instructions are scheduled |
|
* to minimize pipeline stall |
|
*/ |
|
__asm__ volatile( |
|
"mtc1 $zero, %[output] \n\t" |
|
"lwc1 $f0, 0(%[p_data]) \n\t" |
|
"lwc1 $f1, 0(%[fir_coef]) \n\t" |
|
"lwc1 $f2, 4(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f0, $f1 \n\t" |
|
"lwc1 $f3, 4(%[fir_coef]) \n\t" |
|
"lwc1 $f4, 8(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f2, $f3 \n\t" |
|
"lwc1 $f5, 8(%[fir_coef]) \n\t" |
|
|
|
"lwc1 $f0, 12(%[p_data]) \n\t" |
|
"lwc1 $f1, 12(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f4, $f5 \n\t" |
|
"lwc1 $f2, 16(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f0, $f1 \n\t" |
|
"lwc1 $f3, 16(%[fir_coef]) \n\t" |
|
"lwc1 $f4, 20(%[p_data]) \n\t" |
|
"lwc1 $f5, 20(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f2, $f3 \n\t" |
|
|
|
"lwc1 $f0, 24(%[p_data]) \n\t" |
|
"lwc1 $f1, 24(%[fir_coef]) \n\t" |
|
"lwc1 $f2, 28(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f4, $f5 \n\t" |
|
"lwc1 $f3, 28(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f0, $f1 \n\t" |
|
"lwc1 $f4, 32(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f2, $f3 \n\t" |
|
"lwc1 $f5, 32(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f4, $f5 \n\t" |
|
|
|
"lwc1 $f0, 36(%[p_data]) \n\t" |
|
"lwc1 $f1, 36(%[fir_coef]) \n\t" |
|
"lwc1 $f2, 40(%[p_data]) \n\t" |
|
"lwc1 $f3, 40(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f0, $f1 \n\t" |
|
"lwc1 $f4, 44(%[p_data]) \n\t" |
|
"lwc1 $f5, 44(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f2, $f3 \n\t" |
|
|
|
"lwc1 $f0, 48(%[p_data]) \n\t" |
|
"lwc1 $f1, 48(%[fir_coef]) \n\t" |
|
"lwc1 $f2, 52(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f4, $f5 \n\t" |
|
"lwc1 $f3, 52(%[fir_coef]) \n\t" |
|
"lwc1 $f4, 56(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f0, $f1 \n\t" |
|
"lwc1 $f5, 56(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f2, $f3 \n\t" |
|
|
|
"lwc1 $f0, 60(%[p_data]) \n\t" |
|
"lwc1 $f1, 60(%[fir_coef]) \n\t" |
|
"lwc1 $f2, 64(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f4, $f5 \n\t" |
|
"lwc1 $f3, 64(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f0, $f1 \n\t" |
|
"lwc1 $f4, 68(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f2, $f3 \n\t" |
|
"lwc1 $f5, 68(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f4, $f5 \n\t" |
|
|
|
"lwc1 $f0, 72(%[p_data]) \n\t" |
|
"lwc1 $f1, 72(%[fir_coef]) \n\t" |
|
"lwc1 $f2, 76(%[p_data]) \n\t" |
|
"lwc1 $f3, 76(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f0, $f1 \n\t" |
|
"lwc1 $f4, 80(%[p_data]) \n\t" |
|
"lwc1 $f5, 80(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f2, $f3 \n\t" |
|
|
|
"lwc1 $f0, 84(%[p_data]) \n\t" |
|
"lwc1 $f1, 84(%[fir_coef]) \n\t" |
|
"lwc1 $f2, 88(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f4, $f5 \n\t" |
|
"lwc1 $f3, 88(%[fir_coef]) \n\t" |
|
"lwc1 $f4, 92(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f0, $f1 \n\t" |
|
"lwc1 $f5, 92(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f2, $f3 \n\t" |
|
|
|
"lwc1 $f0, 96(%[p_data]) \n\t" |
|
"lwc1 $f1, 96(%[fir_coef]) \n\t" |
|
"lwc1 $f2, 100(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f4, $f5 \n\t" |
|
"lwc1 $f3, 100(%[fir_coef]) \n\t" |
|
"lwc1 $f4, 104(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f0, $f1 \n\t" |
|
"lwc1 $f5, 104(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f2, $f3 \n\t" |
|
|
|
"lwc1 $f0, 108(%[p_data]) \n\t" |
|
"lwc1 $f1, 108(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f4, $f5 \n\t" |
|
"lwc1 $f2, 112(%[p_data]) \n\t" |
|
"lwc1 $f3, 112(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f0, $f1 \n\t" |
|
"lwc1 $f4, 116(%[p_data]) \n\t" |
|
"lwc1 $f5, 116(%[fir_coef]) \n\t" |
|
"lwc1 $f0, 120(%[p_data]) \n\t" |
|
"madd.s %[output], %[output], $f2, $f3 \n\t" |
|
"lwc1 $f1, 120(%[fir_coef]) \n\t" |
|
"madd.s %[output], %[output], $f4, $f5 \n\t" |
|
"madd.s %[output], %[output], $f0, $f1 \n\t" |
|
|
|
: [output]"=&f"(output) |
|
: [fir_coef]"r"(fir_coef), [p_data]"r"(p_data) |
|
: "$f0", "$f1", "$f2", "$f3", "$f4", "$f5" |
|
); |
|
out[i] = output; |
|
} |
|
memcpy(mem, data + AMRWB_SFR_SIZE_16k, HB_FIR_SIZE * sizeof(float)); |
|
} |
|
#endif /* HAVE_INLINE_ASM */
|
|
|