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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 6147 | serge | 1 | /* |
| 2 | * Copyright (C) 2011-2012 Michael Niedermayer (michaelni@gmx.at) |
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| 3 | * |
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| 4 | * This file is part of libswresample |
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| 5 | * |
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| 6 | * libswresample is free software; you can redistribute it and/or |
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| 7 | * modify it under the terms of the GNU Lesser General Public |
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| 8 | * License as published by the Free Software Foundation; either |
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| 9 | * version 2.1 of the License, or (at your option) any later version. |
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| 10 | * |
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| 11 | * libswresample is distributed in the hope that it will be useful, |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 14 | * Lesser General Public License for more details. |
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| 15 | * |
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| 16 | * You should have received a copy of the GNU Lesser General Public |
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| 17 | * License along with libswresample; if not, write to the Free Software |
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| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 19 | */ |
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| 20 | |||
| 21 | #if defined(TEMPLATE_REMATRIX_FLT) |
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| 22 | # define R(x) x |
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| 23 | # define SAMPLE float |
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| 24 | # define COEFF float |
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| 25 | # define INTER float |
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| 26 | # define RENAME(x) x ## _float |
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| 27 | #elif defined(TEMPLATE_REMATRIX_DBL) |
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| 28 | # define R(x) x |
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| 29 | # define SAMPLE double |
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| 30 | # define COEFF double |
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| 31 | # define INTER double |
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| 32 | # define RENAME(x) x ## _double |
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| 33 | #elif defined(TEMPLATE_REMATRIX_S16) |
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| 34 | # define R(x) (((x) + 16384)>>15) |
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| 35 | # define SAMPLE int16_t |
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| 36 | # define COEFF int |
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| 37 | # define INTER int |
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| 38 | # define RENAME(x) x ## _s16 |
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| 39 | #elif defined(TEMPLATE_REMATRIX_S32) |
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| 40 | # define R(x) (((x) + 16384)>>15) |
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| 41 | # define SAMPLE int32_t |
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| 42 | # define COEFF int |
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| 43 | # define INTER int64_t |
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| 44 | # define RENAME(x) x ## _s32 |
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| 45 | #endif |
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| 46 | |||
| 47 | typedef void (RENAME(mix_any_func_type))(SAMPLE **out, const SAMPLE **in1, COEFF *coeffp, integer len); |
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| 48 | |||
| 49 | static void RENAME(sum2)(SAMPLE *out, const SAMPLE *in1, const SAMPLE *in2, COEFF *coeffp, integer index1, integer index2, integer len){ |
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| 50 | int i; |
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| 51 | INTER coeff1 = coeffp[index1]; |
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| 52 | INTER coeff2 = coeffp[index2]; |
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| 53 | |||
| 54 | for(i=0; i |
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| 55 | out[i] = R(coeff1*in1[i] + coeff2*in2[i]); |
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| 56 | } |
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| 57 | |||
| 58 | static void RENAME(copy)(SAMPLE *out, const SAMPLE *in, COEFF *coeffp, integer index, integer len){ |
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| 59 | int i; |
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| 60 | INTER coeff = coeffp[index]; |
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| 61 | for(i=0; i |
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| 62 | out[i] = R(coeff*in[i]); |
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| 63 | } |
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| 64 | |||
| 65 | static void RENAME(mix6to2)(SAMPLE **out, const SAMPLE **in, COEFF *coeffp, integer len){ |
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| 66 | int i; |
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| 67 | |||
| 68 | for(i=0; i |
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| 69 | INTER t = in[2][i]*(INTER)coeffp[0*6+2] + in[3][i]*(INTER)coeffp[0*6+3]; |
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| 70 | out[0][i] = R(t + in[0][i]*(INTER)coeffp[0*6+0] + in[4][i]*(INTER)coeffp[0*6+4]); |
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| 71 | out[1][i] = R(t + in[1][i]*(INTER)coeffp[1*6+1] + in[5][i]*(INTER)coeffp[1*6+5]); |
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| 72 | } |
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| 73 | } |
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| 74 | |||
| 75 | static void RENAME(mix8to2)(SAMPLE **out, const SAMPLE **in, COEFF *coeffp, integer len){ |
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| 76 | int i; |
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| 77 | |||
| 78 | for(i=0; i |
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| 79 | INTER t = in[2][i]*(INTER)coeffp[0*8+2] + in[3][i]*(INTER)coeffp[0*8+3]; |
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| 80 | out[0][i] = R(t + in[0][i]*(INTER)coeffp[0*8+0] + in[4][i]*(INTER)coeffp[0*8+4] + in[6][i]*(INTER)coeffp[0*8+6]); |
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| 81 | out[1][i] = R(t + in[1][i]*(INTER)coeffp[1*8+1] + in[5][i]*(INTER)coeffp[1*8+5] + in[7][i]*(INTER)coeffp[1*8+7]); |
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| 82 | } |
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| 83 | } |
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| 84 | |||
| 85 | static RENAME(mix_any_func_type) *RENAME(get_mix_any_func)(SwrContext *s){ |
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| 86 | if( s->out_ch_layout == AV_CH_LAYOUT_STEREO && (s->in_ch_layout == AV_CH_LAYOUT_5POINT1 || s->in_ch_layout == AV_CH_LAYOUT_5POINT1_BACK) |
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| 87 | && s->matrix[0][2] == s->matrix[1][2] && s->matrix[0][3] == s->matrix[1][3] |
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| 88 | && !s->matrix[0][1] && !s->matrix[0][5] && !s->matrix[1][0] && !s->matrix[1][4] |
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| 89 | ) |
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| 90 | return RENAME(mix6to2); |
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| 91 | |||
| 92 | if( s->out_ch_layout == AV_CH_LAYOUT_STEREO && s->in_ch_layout == AV_CH_LAYOUT_7POINT1 |
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| 93 | && s->matrix[0][2] == s->matrix[1][2] && s->matrix[0][3] == s->matrix[1][3] |
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| 94 | && !s->matrix[0][1] && !s->matrix[0][5] && !s->matrix[1][0] && !s->matrix[1][4] |
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| 95 | && !s->matrix[0][7] && !s->matrix[1][6] |
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| 96 | ) |
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| 97 | return RENAME(mix8to2); |
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| 98 | |||
| 99 | return NULL; |
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| 100 | } |
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| 101 | |||
| 102 | #undef R |
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| 103 | #undef SAMPLE |
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| 104 | #undef COEFF |
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| 105 | #undef INTER |
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| 106 | #undef RENAME |