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FFmpeg/libavcodec/mips/ac3dsp_mips.c

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  1. /*

  2.  * Copyright (c) 2012

  3.  *      MIPS Technologies, Inc., California.

  4.  *

  5.  * Redistribution and use in source and binary forms, with or without

  6.  * modification, are permitted provided that the following conditions

  7.  * are met:

  8.  * 1. Redistributions of source code must retain the above copyright

  9.  *    notice, this list of conditions and the following disclaimer.

  10.  * 2. Redistributions in binary form must reproduce the above copyright

  11.  *    notice, this list of conditions and the following disclaimer in the

  12.  *    documentation and/or other materials provided with the distribution.

  13.  * 3. Neither the name of the MIPS Technologies, Inc., nor the names of its

  14.  *    contributors may be used to endorse or promote products derived from

  15.  *    this software without specific prior written permission.

  16.  *

  17.  * THIS SOFTWARE IS PROVIDED BY THE MIPS TECHNOLOGIES, INC. ``AS IS'' AND

  18.  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  19.  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

  20.  * ARE DISCLAIMED.  IN NO EVENT SHALL THE MIPS TECHNOLOGIES, INC. BE LIABLE

  21.  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

  22.  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

  23.  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

  24.  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

  25.  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

  26.  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

  27.  * SUCH DAMAGE.

  28.  *

  29.  * Authors:  Branimir Vasic (bvasic@mips.com)

  30.  *           Nedeljko Babic (nbabic@mips.com)

  31.  *

  32.  * Various AC-3 DSP Utils optimized for MIPS

  33.  *

  34.  * This file is part of FFmpeg.

  35.  *

  36.  * FFmpeg is free software; you can redistribute it and/or

  37.  * modify it under the terms of the GNU Lesser General Public

  38.  * License as published by the Free Software Foundation; either

  39.  * version 2.1 of the License, or (at your option) any later version.

  40.  *

  41.  * FFmpeg is distributed in the hope that it will be useful,

  42.  * but WITHOUT ANY WARRANTY; without even the implied warranty of

  43.  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

  44.  * Lesser General Public License for more details.

  45.  *

  46.  * You should have received a copy of the GNU Lesser General Public

  47.  * License along with FFmpeg; if not, write to the Free Software

  48.  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

  49.  */

  50. 

  51. /**

  52.  * @file

  53.  * Reference: libavcodec/ac3dsp.c

  54.  */

  55. 

  56. #include "config.h"

  57. #include "libavcodec/ac3dsp.h"

  58. #include "libavcodec/ac3.h"

  59. #include "libavutil/mips/asmdefs.h"

  60. 

  61. #if HAVE_INLINE_ASM

  62. #if HAVE_MIPSDSP

  63. static void ac3_bit_alloc_calc_bap_mips(int16_t *mask, int16_t *psd,

  64.                                         int start, int end,

  65.                                         int snr_offset, int floor,

  66.                                         const uint8_t *bap_tab, uint8_t *bap)

  67. {

  68.     int band, band_end, cond;

  69.     int m, address1, address2;

  70.     int16_t *psd1, *psd_end;

  71.     uint8_t *bap1;

  72. 

  73.     if (snr_offset == -960) {

  74.         memset(bap, 0, AC3_MAX_COEFS);

  75.         return;

  76.     }

  77. 

  78.     psd1 = &psd[start];

  79.     bap1 = &bap[start];

  80.     band = ff_ac3_bin_to_band_tab[start];

  81. 

  82.     do {

  83.         m = (FFMAX(mask[band] - snr_offset - floor, 0) & 0x1FE0) + floor;

  84.         band_end = ff_ac3_band_start_tab[++band];

  85.         band_end = FFMIN(band_end, end);

  86.         psd_end = psd + band_end - 1;

  87. 

  88.         __asm__ volatile (

  89.             "slt        %[cond],        %[psd1],        %[psd_end]  \n\t"

  90.             "beqz       %[cond],        1f                          \n\t"

  91.             "2:                                                     \n\t"

  92.             "lh         %[address1],    0(%[psd1])                  \n\t"

  93.             "lh         %[address2],    2(%[psd1])                  \n\t"

  94.             PTR_ADDIU " %[psd1],        %[psd1],        4           \n\t"

  95.             "subu       %[address1],    %[address1],    %[m]        \n\t"

  96.             "sra        %[address1],    %[address1],    5           \n\t"

  97.             "addiu      %[address1],    %[address1],    -32         \n\t"

  98.             "shll_s.w   %[address1],    %[address1],    26          \n\t"

  99.             "subu       %[address2],    %[address2],    %[m]        \n\t"

  100.             "sra        %[address2],    %[address2],    5           \n\t"

  101.             "sra        %[address1],    %[address1],    26          \n\t"

  102.             "addiu      %[address1],    %[address1],    32          \n\t"

  103.             "lbux       %[address1],    %[address1](%[bap_tab])     \n\t"

  104.             "addiu      %[address2],    %[address2],    -32         \n\t"

  105.             "shll_s.w   %[address2],    %[address2],    26          \n\t"

  106.             "sb         %[address1],    0(%[bap1])                  \n\t"

  107.             "slt        %[cond],        %[psd1],        %[psd_end]  \n\t"

  108.             "sra        %[address2],    %[address2],    26          \n\t"

  109.             "addiu      %[address2],    %[address2],    32          \n\t"

  110.             "lbux       %[address2],    %[address2](%[bap_tab])     \n\t"

  111.             "sb         %[address2],    1(%[bap1])                  \n\t"

  112.             PTR_ADDIU " %[bap1],        %[bap1],        2           \n\t"

  113.             "bnez       %[cond],        2b                          \n\t"

  114.             PTR_ADDIU " %[psd_end],     %[psd_end],     2           \n\t"

  115.             "slt        %[cond],        %[psd1],        %[psd_end]  \n\t"

  116.             "beqz       %[cond],        3f                          \n\t"

  117.             "1:                                                     \n\t"

  118.             "lh         %[address1],    0(%[psd1])                  \n\t"

  119.             PTR_ADDIU " %[psd1],        %[psd1],        2           \n\t"

  120.             "subu       %[address1],    %[address1],    %[m]        \n\t"

  121.             "sra        %[address1],    %[address1],    5           \n\t"

  122.             "addiu      %[address1],    %[address1],    -32         \n\t"

  123.             "shll_s.w   %[address1],    %[address1],    26          \n\t"

  124.             "sra        %[address1],    %[address1],    26          \n\t"

  125.             "addiu      %[address1],    %[address1],    32          \n\t"

  126.             "lbux       %[address1],    %[address1](%[bap_tab])     \n\t"

  127.             "sb         %[address1],    0(%[bap1])                  \n\t"

  128.             PTR_ADDIU " %[bap1],        %[bap1],        1           \n\t"

  129.             "3:                                                     \n\t"

  130. 

  131.             : [address1]"=&r"(address1), [address2]"=&r"(address2),

  132.               [cond]"=&r"(cond), [bap1]"+r"(bap1),

  133.               [psd1]"+r"(psd1), [psd_end]"+r"(psd_end)

  134.             : [m]"r"(m), [bap_tab]"r"(bap_tab)

  135.             : "memory"

  136.         );

  137.     } while (end > band_end);

  138. }

  139. 

  140. static void ac3_update_bap_counts_mips(uint16_t mant_cnt[16], uint8_t *bap,

  141.                                        int len)

  142. {

  143.     void *temp0, *temp2, *temp4, *temp5, *temp6, *temp7;

  144.     int temp1, temp3;

  145. 

  146.     __asm__ volatile (

  147.         "andi   %[temp3],   %[len],         3               \n\t"

  148.         PTR_ADDU "%[temp2], %[bap],         %[len]          \n\t"

  149.         PTR_ADDU "%[temp4], %[bap],         %[temp3]        \n\t"

  150.         "beq    %[temp2],   %[temp4],       4f              \n\t"

  151.         "1:                                                 \n\t"

  152.         "lbu    %[temp0],   -1(%[temp2])                    \n\t"

  153.         "lbu    %[temp5],   -2(%[temp2])                    \n\t"

  154.         "lbu    %[temp6],   -3(%[temp2])                    \n\t"

  155.         "sll    %[temp0],   %[temp0],       1               \n\t"

  156.         PTR_ADDU "%[temp0], %[mant_cnt],    %[temp0]        \n\t"

  157.         "sll    %[temp5],   %[temp5],       1               \n\t"

  158.         PTR_ADDU "%[temp5], %[mant_cnt],    %[temp5]        \n\t"

  159.         "lhu    %[temp1],   0(%[temp0])                     \n\t"

  160.         "sll    %[temp6],   %[temp6],       1               \n\t"

  161.         PTR_ADDU "%[temp6], %[mant_cnt],    %[temp6]        \n\t"

  162.         "addiu  %[temp1],   %[temp1],       1               \n\t"

  163.         "sh     %[temp1],   0(%[temp0])                     \n\t"

  164.         "lhu    %[temp1],   0(%[temp5])                     \n\t"

  165.         "lbu    %[temp7],   -4(%[temp2])                    \n\t"

  166.         PTR_ADDIU "%[temp2],%[temp2],       -4              \n\t"

  167.         "addiu  %[temp1],   %[temp1],       1               \n\t"

  168.         "sh     %[temp1],   0(%[temp5])                     \n\t"

  169.         "lhu    %[temp1],   0(%[temp6])                     \n\t"

  170.         "sll    %[temp7],   %[temp7],       1               \n\t"

  171.         PTR_ADDU "%[temp7], %[mant_cnt],    %[temp7]        \n\t"

  172.         "addiu  %[temp1],   %[temp1],1                      \n\t"

  173.         "sh     %[temp1],   0(%[temp6])                     \n\t"

  174.         "lhu    %[temp1],   0(%[temp7])                     \n\t"

  175.         "addiu  %[temp1],   %[temp1],       1               \n\t"

  176.         "sh     %[temp1],   0(%[temp7])                     \n\t"

  177.         "bne    %[temp2],   %[temp4],       1b              \n\t"

  178.         "4:                                                 \n\t"

  179.         "beqz   %[temp3],   2f                              \n\t"

  180.         "3:                                                 \n\t"

  181.         "addiu  %[temp3],   %[temp3],       -1              \n\t"

  182.         "lbu    %[temp0],   -1(%[temp2])                    \n\t"

  183.         PTR_ADDIU "%[temp2],%[temp2],       -1              \n\t"

  184.         "sll    %[temp0],   %[temp0],       1               \n\t"

  185.         PTR_ADDU "%[temp0], %[mant_cnt],    %[temp0]        \n\t"

  186.         "lhu    %[temp1],   0(%[temp0])                     \n\t"

  187.         "addiu  %[temp1],   %[temp1],       1               \n\t"

  188.         "sh     %[temp1],   0(%[temp0])                     \n\t"

  189.         "bgtz   %[temp3],   3b                              \n\t"

  190.         "2:                                                 \n\t"

  191. 

  192.         : [temp0] "=&r" (temp0), [temp1] "=&r" (temp1),

  193.           [temp2] "=&r" (temp2), [temp3] "=&r" (temp3),

  194.           [temp4] "=&r" (temp4), [temp5] "=&r" (temp5),

  195.           [temp6] "=&r" (temp6), [temp7] "=&r" (temp7)

  196.         : [len] "r" (len), [bap] "r" (bap),

  197.           [mant_cnt] "r" (mant_cnt)

  198.         : "memory"

  199.     );

  200. }

  201. #endif

  202. 

  203. #if HAVE_MIPSFPU

  204. static void float_to_fixed24_mips(int32_t *dst, const float *src, unsigned int len)

  205. {

  206.     const float scale = 1 << 24;

  207.     float src0, src1, src2, src3, src4, src5, src6, src7;

  208.     int temp0, temp1, temp2, temp3, temp4, temp5, temp6, temp7;

  209. 

  210.     do {

  211.         __asm__ volatile (

  212.             "lwc1       %[src0],    0(%[src])               \n\t"

  213.             "lwc1       %[src1],    4(%[src])               \n\t"

  214.             "lwc1       %[src2],    8(%[src])               \n\t"

  215.             "lwc1       %[src3],    12(%[src])              \n\t"

  216.             "lwc1       %[src4],    16(%[src])              \n\t"

  217.             "lwc1       %[src5],    20(%[src])              \n\t"

  218.             "lwc1       %[src6],    24(%[src])              \n\t"

  219.             "lwc1       %[src7],    28(%[src])              \n\t"

  220.             "mul.s      %[src0],    %[src0],    %[scale]    \n\t"

  221.             "mul.s      %[src1],    %[src1],    %[scale]    \n\t"

  222.             "mul.s      %[src2],    %[src2],    %[scale]    \n\t"

  223.             "mul.s      %[src3],    %[src3],    %[scale]    \n\t"

  224.             "mul.s      %[src4],    %[src4],    %[scale]    \n\t"

  225.             "mul.s      %[src5],    %[src5],    %[scale]    \n\t"

  226.             "mul.s      %[src6],    %[src6],    %[scale]    \n\t"

  227.             "mul.s      %[src7],    %[src7],    %[scale]    \n\t"

  228.             "cvt.w.s    %[src0],    %[src0]                 \n\t"

  229.             "cvt.w.s    %[src1],    %[src1]                 \n\t"

  230.             "cvt.w.s    %[src2],    %[src2]                 \n\t"

  231.             "cvt.w.s    %[src3],    %[src3]                 \n\t"

  232.             "cvt.w.s    %[src4],    %[src4]                 \n\t"

  233.             "cvt.w.s    %[src5],    %[src5]                 \n\t"

  234.             "cvt.w.s    %[src6],    %[src6]                 \n\t"

  235.             "cvt.w.s    %[src7],    %[src7]                 \n\t"

  236.             "mfc1       %[temp0],   %[src0]                 \n\t"

  237.             "mfc1       %[temp1],   %[src1]                 \n\t"

  238.             "mfc1       %[temp2],   %[src2]                 \n\t"

  239.             "mfc1       %[temp3],   %[src3]                 \n\t"

  240.             "mfc1       %[temp4],   %[src4]                 \n\t"

  241.             "mfc1       %[temp5],   %[src5]                 \n\t"

  242.             "mfc1       %[temp6],   %[src6]                 \n\t"

  243.             "mfc1       %[temp7],   %[src7]                 \n\t"

  244.             "sw         %[temp0],   0(%[dst])               \n\t"

  245.             "sw         %[temp1],   4(%[dst])               \n\t"

  246.             "sw         %[temp2],   8(%[dst])               \n\t"

  247.             "sw         %[temp3],   12(%[dst])              \n\t"

  248.             "sw         %[temp4],   16(%[dst])              \n\t"

  249.             "sw         %[temp5],   20(%[dst])              \n\t"

  250.             "sw         %[temp6],   24(%[dst])              \n\t"

  251.             "sw         %[temp7],   28(%[dst])              \n\t"

  252. 

  253.             : [dst] "+r" (dst), [src] "+r" (src),

  254.               [src0] "=&f" (src0), [src1] "=&f" (src1),

  255.               [src2] "=&f" (src2), [src3] "=&f" (src3),

  256.               [src4] "=&f" (src4), [src5] "=&f" (src5),

  257.               [src6] "=&f" (src6), [src7] "=&f" (src7),

  258.               [temp0] "=r" (temp0), [temp1] "=r" (temp1),

  259.               [temp2] "=r" (temp2), [temp3] "=r" (temp3),

  260.               [temp4] "=r" (temp4), [temp5] "=r" (temp5),

  261.               [temp6] "=r" (temp6), [temp7] "=r" (temp7)

  262.             : [scale] "f" (scale)

  263.             : "memory"

  264.         );

  265.         src = src + 8;

  266.         dst = dst + 8;

  267.         len -= 8;

  268.     } while (len > 0);

  269. }

  270. 

  271. static void ac3_downmix_mips(float **samples, float (*matrix)[2],

  272.                           int out_ch, int in_ch, int len)

  273. {

  274.     int i, j, i1, i2, i3;

  275.     float v0, v1, v2, v3;

  276.     float v4, v5, v6, v7;

  277.     float samples0, samples1, samples2, samples3, matrix_j, matrix_j2;

  278.     float *samples_p, *samples_sw, *matrix_p, **samples_x, **samples_end;

  279. 

  280.     __asm__ volatile(

  281.         ".set   push                                                \n\t"

  282.         ".set   noreorder                                           \n\t"

  283. 

  284.         "li     %[i1],          2                                   \n\t"

  285.         "sll    %[len],         2                                   \n\t"

  286.         "move   %[i],           $zero                               \n\t"

  287.         "sll    %[j],           %[in_ch],             " PTRLOG "    \n\t"

  288. 

  289.         "bne    %[out_ch],      %[i1],                  3f          \n\t"   // if (out_ch == 2)

  290.         " li    %[i2],          1                                   \n\t"

  291. 

  292.         "2:                                                         \n\t"   // start of the for loop (for (i = 0; i < len; i+=4))

  293.         "move   %[matrix_p],    %[matrix]                           \n\t"

  294.         "move   %[samples_x],   %[samples]                          \n\t"

  295.         "mtc1   $zero,          %[v0]                               \n\t"

  296.         "mtc1   $zero,          %[v1]                               \n\t"

  297.         "mtc1   $zero,          %[v2]                               \n\t"

  298.         "mtc1   $zero,          %[v3]                               \n\t"

  299.         "mtc1   $zero,          %[v4]                               \n\t"

  300.         "mtc1   $zero,          %[v5]                               \n\t"

  301.         "mtc1   $zero,          %[v6]                               \n\t"

  302.         "mtc1   $zero,          %[v7]                               \n\t"

  303.         "addiu  %[i1],          %[i],                  4            \n\t"

  304.         "addiu  %[i2],          %[i],                  8            \n\t"

  305.         PTR_L " %[samples_p],   0(%[samples_x])                     \n\t"

  306.         "addiu  %[i3],          %[i],                  12           \n\t"

  307.         PTR_ADDU "%[samples_end],%[samples_x],         %[j]         \n\t"

  308.         "move   %[samples_sw],  %[samples_p]                        \n\t"

  309. 

  310.         "1:                                                         \n\t"   // start of the inner for loop (for (j = 0; j < in_ch; j++))

  311.         "lwc1   %[matrix_j],    0(%[matrix_p])                      \n\t"

  312.         "lwc1   %[matrix_j2],   4(%[matrix_p])                      \n\t"

  313.         "lwxc1  %[samples0],    %[i](%[samples_p])                  \n\t"

  314.         "lwxc1  %[samples1],    %[i1](%[samples_p])                 \n\t"

  315.         "lwxc1  %[samples2],    %[i2](%[samples_p])                 \n\t"

  316.         "lwxc1  %[samples3],    %[i3](%[samples_p])                 \n\t"

  317.         PTR_ADDIU "%[matrix_p], 8                                   \n\t"

  318.         PTR_ADDIU "%[samples_x]," PTRSIZE "                         \n\t"

  319.         "madd.s %[v0],          %[v0],  %[samples0],    %[matrix_j] \n\t"

  320.         "madd.s %[v1],          %[v1],  %[samples1],    %[matrix_j] \n\t"

  321.         "madd.s %[v2],          %[v2],  %[samples2],    %[matrix_j] \n\t"

  322.         "madd.s %[v3],          %[v3],  %[samples3],    %[matrix_j] \n\t"

  323.         "madd.s %[v4],          %[v4],  %[samples0],    %[matrix_j2]\n\t"

  324.         "madd.s %[v5],          %[v5],  %[samples1],    %[matrix_j2]\n\t"

  325.         "madd.s %[v6],          %[v6],  %[samples2],    %[matrix_j2]\n\t"

  326.         "madd.s %[v7],          %[v7],  %[samples3],    %[matrix_j2]\n\t"

  327.         "bne    %[samples_x],   %[samples_end],         1b          \n\t"

  328.         PTR_L " %[samples_p],   0(%[samples_x])                     \n\t"

  329. 

  330.         PTR_L " %[samples_p],  " PTRSIZE "(%[samples])              \n\t"

  331.         "swxc1  %[v0],          %[i](%[samples_sw])                 \n\t"

  332.         "swxc1  %[v1],          %[i1](%[samples_sw])                \n\t"

  333.         "swxc1  %[v2],          %[i2](%[samples_sw])                \n\t"

  334.         "swxc1  %[v3],          %[i3](%[samples_sw])                \n\t"

  335.         "swxc1  %[v4],          %[i](%[samples_p])                  \n\t"

  336.         "addiu  %[i],           16                                  \n\t"

  337.         "swxc1  %[v5],          %[i1](%[samples_p])                 \n\t"

  338.         "swxc1  %[v6],          %[i2](%[samples_p])                 \n\t"

  339.         "bne    %[i],           %[len],                 2b          \n\t"

  340.         " swxc1 %[v7],          %[i3](%[samples_p])                 \n\t"

  341. 

  342.         "3:                                                         \n\t"

  343.         "bne    %[out_ch],      %[i2],                  6f          \n\t"   // if (out_ch == 1)

  344.         " nop                                                       \n\t"

  345. 

  346.         "5:                                                         \n\t"   // start of the outer for loop (for (i = 0; i < len; i+=4))

  347.         "move   %[matrix_p],    %[matrix]                           \n\t"

  348.         "move   %[samples_x],   %[samples]                          \n\t"

  349.         "mtc1   $zero,          %[v0]                               \n\t"

  350.         "mtc1   $zero,          %[v1]                               \n\t"

  351.         "mtc1   $zero,          %[v2]                               \n\t"

  352.         "mtc1   $zero,          %[v3]                               \n\t"

  353.         "addiu  %[i1],          %[i],                  4            \n\t"

  354.         "addiu  %[i2],          %[i],                  8            \n\t"

  355.         PTR_L " %[samples_p],   0(%[samples_x])                     \n\t"

  356.         "addiu  %[i3],          %[i],                  12           \n\t"

  357.         PTR_ADDU "%[samples_end],%[samples_x],         %[j]         \n\t"

  358.         "move   %[samples_sw],  %[samples_p]                        \n\t"

  359. 

  360.         "4:                                                         \n\t"   // start of the inner for loop (for (j = 0; j < in_ch; j++))

  361.         "lwc1   %[matrix_j],    0(%[matrix_p])                      \n\t"

  362.         "lwxc1  %[samples0],    %[i](%[samples_p])                  \n\t"

  363.         "lwxc1  %[samples1],    %[i1](%[samples_p])                 \n\t"

  364.         "lwxc1  %[samples2],    %[i2](%[samples_p])                 \n\t"

  365.         "lwxc1  %[samples3],    %[i3](%[samples_p])                 \n\t"

  366.         PTR_ADDIU "%[matrix_p], 8                                   \n\t"

  367.         PTR_ADDIU "%[samples_x]," PTRSIZE "                         \n\t"

  368.         "madd.s %[v0],          %[v0],  %[samples0],    %[matrix_j] \n\t"

  369.         "madd.s %[v1],          %[v1],  %[samples1],    %[matrix_j] \n\t"

  370.         "madd.s %[v2],          %[v2],  %[samples2],    %[matrix_j] \n\t"

  371.         "madd.s %[v3],          %[v3],  %[samples3],    %[matrix_j] \n\t"

  372.         "bne    %[samples_x],   %[samples_end],         4b          \n\t"

  373.         PTR_L " %[samples_p],   0(%[samples_x])                     \n\t"

  374. 

  375.         "swxc1  %[v0],          %[i](%[samples_sw])                 \n\t"

  376.         "addiu  %[i],           16                                  \n\t"

  377.         "swxc1  %[v1],          %[i1](%[samples_sw])                \n\t"

  378.         "swxc1  %[v2],          %[i2](%[samples_sw])                \n\t"

  379.         "bne    %[i],           %[len],                 5b          \n\t"

  380.         " swxc1 %[v3],          %[i3](%[samples_sw])                \n\t"

  381.         "6:                                                         \n\t"

  382. 

  383.         ".set   pop"

  384.         :[samples_p]"=&r"(samples_p), [matrix_j]"=&f"(matrix_j), [matrix_j2]"=&f"(matrix_j2),

  385.          [samples0]"=&f"(samples0), [samples1]"=&f"(samples1),

  386.          [samples2]"=&f"(samples2), [samples3]"=&f"(samples3),

  387.          [v0]"=&f"(v0), [v1]"=&f"(v1), [v2]"=&f"(v2), [v3]"=&f"(v3),

  388.          [v4]"=&f"(v4), [v5]"=&f"(v5), [v6]"=&f"(v6), [v7]"=&f"(v7),

  389.          [samples_x]"=&r"(samples_x), [matrix_p]"=&r"(matrix_p),

  390.          [samples_end]"=&r"(samples_end), [samples_sw]"=&r"(samples_sw),

  391.          [i1]"=&r"(i1), [i2]"=&r"(i2), [i3]"=&r"(i3), [i]"=&r"(i),

  392.          [j]"=&r"(j), [len]"+r"(len)

  393.         :[samples]"r"(samples), [matrix]"r"(matrix),

  394.          [in_ch]"r"(in_ch), [out_ch]"r"(out_ch)

  395.         :"memory"

  396.     );

  397. }

  398. #endif

  399. #endif /* HAVE_INLINE_ASM */

  400. 

  401. void ff_ac3dsp_init_mips(AC3DSPContext *c, int bit_exact) {

  402. #if HAVE_INLINE_ASM

  403. #if HAVE_MIPSDSP

  404.     c->bit_alloc_calc_bap = ac3_bit_alloc_calc_bap_mips;

  405.     c->update_bap_counts  = ac3_update_bap_counts_mips;

  406. #endif

  407. #if HAVE_MIPSFPU

  408.     c->float_to_fixed24 = float_to_fixed24_mips;

  409.     c->downmix          = ac3_downmix_mips;

  410. #endif

  411. #endif

  412. 

  413. }