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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * Copyright (c) 2006 Michael Niedermayer |
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| 3 | * Copyright (c) 2012 Justin Ruggles |
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| 4 | * |
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| 5 | * This file is part of FFmpeg. |
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| 6 | * |
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| 7 | * FFmpeg is free software; you can redistribute it and/or |
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| 8 | * modify it under the terms of the GNU Lesser General Public |
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| 9 | * License as published by the Free Software Foundation; either |
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| 10 | * version 2.1 of the License, or (at your option) any later version. |
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| 11 | * |
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| 12 | * FFmpeg is distributed in the hope that it will be useful, |
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 15 | * Lesser General Public License for more details. |
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| 16 | * |
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| 17 | * You should have received a copy of the GNU Lesser General Public |
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| 18 | * License along with FFmpeg; if not, write to the Free Software |
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| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | */ |
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| 21 | |||
| 22 | #include |
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| 23 | |||
| 24 | #include "config.h" |
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| 25 | #include "libavutil/common.h" |
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| 26 | #include "libavutil/libm.h" |
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| 27 | #include "libavutil/log.h" |
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| 28 | #include "libavutil/mem.h" |
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| 29 | #include "libavutil/samplefmt.h" |
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| 30 | #include "audio_convert.h" |
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| 31 | #include "audio_data.h" |
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| 32 | #include "dither.h" |
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| 33 | |||
| 34 | enum ConvFuncType { |
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| 35 | CONV_FUNC_TYPE_FLAT, |
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| 36 | CONV_FUNC_TYPE_INTERLEAVE, |
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| 37 | CONV_FUNC_TYPE_DEINTERLEAVE, |
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| 38 | }; |
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| 39 | |||
| 40 | typedef void (conv_func_flat)(uint8_t *out, const uint8_t *in, int len); |
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| 41 | |||
| 42 | typedef void (conv_func_interleave)(uint8_t *out, uint8_t *const *in, |
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| 43 | int len, int channels); |
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| 44 | |||
| 45 | typedef void (conv_func_deinterleave)(uint8_t **out, const uint8_t *in, int len, |
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| 46 | int channels); |
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| 47 | |||
| 48 | struct AudioConvert { |
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| 49 | AVAudioResampleContext *avr; |
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| 50 | DitherContext *dc; |
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| 51 | enum AVSampleFormat in_fmt; |
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| 52 | enum AVSampleFormat out_fmt; |
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| 53 | int apply_map; |
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| 54 | int channels; |
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| 55 | int planes; |
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| 56 | int ptr_align; |
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| 57 | int samples_align; |
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| 58 | int has_optimized_func; |
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| 59 | const char *func_descr; |
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| 60 | const char *func_descr_generic; |
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| 61 | enum ConvFuncType func_type; |
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| 62 | conv_func_flat *conv_flat; |
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| 63 | conv_func_flat *conv_flat_generic; |
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| 64 | conv_func_interleave *conv_interleave; |
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| 65 | conv_func_interleave *conv_interleave_generic; |
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| 66 | conv_func_deinterleave *conv_deinterleave; |
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| 67 | conv_func_deinterleave *conv_deinterleave_generic; |
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| 68 | }; |
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| 69 | |||
| 70 | void ff_audio_convert_set_func(AudioConvert *ac, enum AVSampleFormat out_fmt, |
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| 71 | enum AVSampleFormat in_fmt, int channels, |
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| 72 | int ptr_align, int samples_align, |
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| 73 | const char *descr, void *conv) |
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| 74 | { |
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| 75 | int found = 0; |
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| 76 | |||
| 77 | switch (ac->func_type) { |
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| 78 | case CONV_FUNC_TYPE_FLAT: |
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| 79 | if (av_get_packed_sample_fmt(ac->in_fmt) == in_fmt && |
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| 80 | av_get_packed_sample_fmt(ac->out_fmt) == out_fmt) { |
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| 81 | ac->conv_flat = conv; |
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| 82 | ac->func_descr = descr; |
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| 83 | ac->ptr_align = ptr_align; |
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| 84 | ac->samples_align = samples_align; |
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| 85 | if (ptr_align == 1 && samples_align == 1) { |
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| 86 | ac->conv_flat_generic = conv; |
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| 87 | ac->func_descr_generic = descr; |
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| 88 | } else { |
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| 89 | ac->has_optimized_func = 1; |
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| 90 | } |
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| 91 | found = 1; |
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| 92 | } |
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| 93 | break; |
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| 94 | case CONV_FUNC_TYPE_INTERLEAVE: |
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| 95 | if (ac->in_fmt == in_fmt && ac->out_fmt == out_fmt && |
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| 96 | (!channels || ac->channels == channels)) { |
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| 97 | ac->conv_interleave = conv; |
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| 98 | ac->func_descr = descr; |
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| 99 | ac->ptr_align = ptr_align; |
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| 100 | ac->samples_align = samples_align; |
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| 101 | if (ptr_align == 1 && samples_align == 1) { |
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| 102 | ac->conv_interleave_generic = conv; |
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| 103 | ac->func_descr_generic = descr; |
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| 104 | } else { |
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| 105 | ac->has_optimized_func = 1; |
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| 106 | } |
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| 107 | found = 1; |
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| 108 | } |
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| 109 | break; |
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| 110 | case CONV_FUNC_TYPE_DEINTERLEAVE: |
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| 111 | if (ac->in_fmt == in_fmt && ac->out_fmt == out_fmt && |
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| 112 | (!channels || ac->channels == channels)) { |
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| 113 | ac->conv_deinterleave = conv; |
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| 114 | ac->func_descr = descr; |
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| 115 | ac->ptr_align = ptr_align; |
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| 116 | ac->samples_align = samples_align; |
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| 117 | if (ptr_align == 1 && samples_align == 1) { |
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| 118 | ac->conv_deinterleave_generic = conv; |
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| 119 | ac->func_descr_generic = descr; |
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| 120 | } else { |
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| 121 | ac->has_optimized_func = 1; |
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| 122 | } |
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| 123 | found = 1; |
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| 124 | } |
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| 125 | break; |
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| 126 | } |
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| 127 | if (found) { |
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| 128 | av_log(ac->avr, AV_LOG_DEBUG, "audio_convert: found function: %-4s " |
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| 129 | "to %-4s (%s)\n", av_get_sample_fmt_name(ac->in_fmt), |
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| 130 | av_get_sample_fmt_name(ac->out_fmt), descr); |
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| 131 | } |
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| 132 | } |
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| 133 | |||
| 134 | #define CONV_FUNC_NAME(dst_fmt, src_fmt) conv_ ## src_fmt ## _to_ ## dst_fmt |
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| 135 | |||
| 136 | #define CONV_LOOP(otype, expr) \ |
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| 137 | do { \ |
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| 138 | *(otype *)po = expr; \ |
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| 139 | pi += is; \ |
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| 140 | po += os; \ |
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| 141 | } while (po < end); \ |
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| 142 | |||
| 143 | #define CONV_FUNC_FLAT(ofmt, otype, ifmt, itype, expr) \ |
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| 144 | static void CONV_FUNC_NAME(ofmt, ifmt)(uint8_t *out, const uint8_t *in, \ |
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| 145 | int len) \ |
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| 146 | { \ |
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| 147 | int is = sizeof(itype); \ |
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| 148 | int os = sizeof(otype); \ |
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| 149 | const uint8_t *pi = in; \ |
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| 150 | uint8_t *po = out; \ |
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| 151 | uint8_t *end = out + os * len; \ |
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| 152 | CONV_LOOP(otype, expr) \ |
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| 153 | } |
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| 154 | |||
| 155 | #define CONV_FUNC_INTERLEAVE(ofmt, otype, ifmt, itype, expr) \ |
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| 156 | static void CONV_FUNC_NAME(ofmt, ifmt)(uint8_t *out, const uint8_t **in, \ |
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| 157 | int len, int channels) \ |
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| 158 | { \ |
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| 159 | int ch; \ |
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| 160 | int out_bps = sizeof(otype); \ |
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| 161 | int is = sizeof(itype); \ |
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| 162 | int os = channels * out_bps; \ |
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| 163 | for (ch = 0; ch < channels; ch++) { \ |
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| 164 | const uint8_t *pi = in[ch]; \ |
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| 165 | uint8_t *po = out + ch * out_bps; \ |
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| 166 | uint8_t *end = po + os * len; \ |
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| 167 | CONV_LOOP(otype, expr) \ |
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| 168 | } \ |
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| 169 | } |
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| 170 | |||
| 171 | #define CONV_FUNC_DEINTERLEAVE(ofmt, otype, ifmt, itype, expr) \ |
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| 172 | static void CONV_FUNC_NAME(ofmt, ifmt)(uint8_t **out, const uint8_t *in, \ |
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| 173 | int len, int channels) \ |
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| 174 | { \ |
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| 175 | int ch; \ |
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| 176 | int in_bps = sizeof(itype); \ |
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| 177 | int is = channels * in_bps; \ |
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| 178 | int os = sizeof(otype); \ |
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| 179 | for (ch = 0; ch < channels; ch++) { \ |
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| 180 | const uint8_t *pi = in + ch * in_bps; \ |
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| 181 | uint8_t *po = out[ch]; \ |
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| 182 | uint8_t *end = po + os * len; \ |
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| 183 | CONV_LOOP(otype, expr) \ |
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| 184 | } \ |
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| 185 | } |
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| 186 | |||
| 187 | #define CONV_FUNC_GROUP(ofmt, otype, ifmt, itype, expr) \ |
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| 188 | CONV_FUNC_FLAT( ofmt, otype, ifmt, itype, expr) \ |
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| 189 | CONV_FUNC_INTERLEAVE( ofmt, otype, ifmt ## P, itype, expr) \ |
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| 190 | CONV_FUNC_DEINTERLEAVE(ofmt ## P, otype, ifmt, itype, expr) |
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| 191 | |||
| 192 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_U8, uint8_t, *(const uint8_t *)pi) |
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| 193 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_U8, uint8_t, (*(const uint8_t *)pi - 0x80) << 8) |
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| 194 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_U8, uint8_t, (*(const uint8_t *)pi - 0x80) << 24) |
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| 195 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8, uint8_t, (*(const uint8_t *)pi - 0x80) * (1.0f / (1 << 7))) |
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| 196 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8, uint8_t, (*(const uint8_t *)pi - 0x80) * (1.0 / (1 << 7))) |
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| 197 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16, int16_t, (*(const int16_t *)pi >> 8) + 0x80) |
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| 198 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *)pi) |
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| 199 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *)pi << 16) |
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| 200 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *)pi * (1.0f / (1 << 15))) |
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| 201 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16, int16_t, *(const int16_t *)pi * (1.0 / (1 << 15))) |
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| 202 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32, int32_t, (*(const int32_t *)pi >> 24) + 0x80) |
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| 203 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *)pi >> 16) |
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| 204 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *)pi) |
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| 205 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *)pi * (1.0f / (1U << 31))) |
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| 206 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32, int32_t, *(const int32_t *)pi * (1.0 / (1U << 31))) |
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| 207 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, float, av_clip_uint8( lrintf(*(const float *)pi * (1 << 7)) + 0x80)) |
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| 208 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, float, av_clip_int16( lrintf(*(const float *)pi * (1 << 15)))) |
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| 209 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, float, av_clipl_int32(llrintf(*(const float *)pi * (1U << 31)))) |
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| 210 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_FLT, float, *(const float *)pi) |
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| 211 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_FLT, float, *(const float *)pi) |
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| 212 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, double, av_clip_uint8( lrint(*(const double *)pi * (1 << 7)) + 0x80)) |
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| 213 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, double, av_clip_int16( lrint(*(const double *)pi * (1 << 15)))) |
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| 214 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, double, av_clipl_int32(llrint(*(const double *)pi * (1U << 31)))) |
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| 215 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_DBL, double, *(const double *)pi) |
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| 216 | CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_DBL, double, *(const double *)pi) |
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| 217 | |||
| 218 | #define SET_CONV_FUNC_GROUP(ofmt, ifmt) \ |
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| 219 | ff_audio_convert_set_func(ac, ofmt, ifmt, 0, 1, 1, "C", CONV_FUNC_NAME(ofmt, ifmt)); \ |
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| 220 | ff_audio_convert_set_func(ac, ofmt ## P, ifmt, 0, 1, 1, "C", CONV_FUNC_NAME(ofmt ## P, ifmt)); \ |
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| 221 | ff_audio_convert_set_func(ac, ofmt, ifmt ## P, 0, 1, 1, "C", CONV_FUNC_NAME(ofmt, ifmt ## P)); |
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| 222 | |||
| 223 | static void set_generic_function(AudioConvert *ac) |
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| 224 | { |
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| 225 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8) |
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| 226 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8) |
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| 227 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8) |
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| 228 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8) |
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| 229 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8) |
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| 230 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16) |
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| 231 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16) |
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| 232 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16) |
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| 233 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16) |
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| 234 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16) |
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| 235 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32) |
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| 236 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32) |
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| 237 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32) |
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| 238 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32) |
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| 239 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32) |
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| 240 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT) |
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| 241 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT) |
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| 242 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT) |
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| 243 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT) |
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| 244 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT) |
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| 245 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL) |
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| 246 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL) |
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| 247 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL) |
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| 248 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL) |
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| 249 | SET_CONV_FUNC_GROUP(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL) |
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| 250 | } |
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| 251 | |||
| 252 | void ff_audio_convert_free(AudioConvert **ac) |
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| 253 | { |
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| 254 | if (!*ac) |
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| 255 | return; |
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| 256 | ff_dither_free(&(*ac)->dc); |
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| 257 | av_freep(ac); |
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| 258 | } |
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| 259 | |||
| 260 | AudioConvert *ff_audio_convert_alloc(AVAudioResampleContext *avr, |
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| 261 | enum AVSampleFormat out_fmt, |
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| 262 | enum AVSampleFormat in_fmt, |
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| 263 | int channels, int sample_rate, |
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| 264 | int apply_map) |
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| 265 | { |
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| 266 | AudioConvert *ac; |
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| 267 | int in_planar, out_planar; |
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| 268 | |||
| 269 | ac = av_mallocz(sizeof(*ac)); |
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| 270 | if (!ac) |
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| 271 | return NULL; |
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| 272 | |||
| 273 | ac->avr = avr; |
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| 274 | ac->out_fmt = out_fmt; |
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| 275 | ac->in_fmt = in_fmt; |
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| 276 | ac->channels = channels; |
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| 277 | ac->apply_map = apply_map; |
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| 278 | |||
| 279 | if (avr->dither_method != AV_RESAMPLE_DITHER_NONE && |
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| 280 | av_get_packed_sample_fmt(out_fmt) == AV_SAMPLE_FMT_S16 && |
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| 281 | av_get_bytes_per_sample(in_fmt) > 2) { |
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| 282 | ac->dc = ff_dither_alloc(avr, out_fmt, in_fmt, channels, sample_rate, |
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| 283 | apply_map); |
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| 284 | if (!ac->dc) { |
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| 285 | av_free(ac); |
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| 286 | return NULL; |
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| 287 | } |
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| 288 | return ac; |
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| 289 | } |
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| 290 | |||
| 291 | in_planar = av_sample_fmt_is_planar(in_fmt); |
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| 292 | out_planar = av_sample_fmt_is_planar(out_fmt); |
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| 293 | |||
| 294 | if (in_planar == out_planar) { |
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| 295 | ac->func_type = CONV_FUNC_TYPE_FLAT; |
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| 296 | ac->planes = in_planar ? ac->channels : 1; |
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| 297 | } else if (in_planar) |
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| 298 | ac->func_type = CONV_FUNC_TYPE_INTERLEAVE; |
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| 299 | else |
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| 300 | ac->func_type = CONV_FUNC_TYPE_DEINTERLEAVE; |
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| 301 | |||
| 302 | set_generic_function(ac); |
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| 303 | |||
| 304 | if (ARCH_ARM) |
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| 305 | ff_audio_convert_init_arm(ac); |
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| 306 | if (ARCH_X86) |
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| 307 | ff_audio_convert_init_x86(ac); |
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| 308 | |||
| 309 | return ac; |
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| 310 | } |
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| 311 | |||
| 312 | int ff_audio_convert(AudioConvert *ac, AudioData *out, AudioData *in) |
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| 313 | { |
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| 314 | int use_generic = 1; |
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| 315 | int len = in->nb_samples; |
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| 316 | int p; |
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| 317 | |||
| 318 | if (ac->dc) { |
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| 319 | /* dithered conversion */ |
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| 320 | av_dlog(ac->avr, "%d samples - audio_convert: %s to %s (dithered)\n", |
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| 321 | len, av_get_sample_fmt_name(ac->in_fmt), |
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| 322 | av_get_sample_fmt_name(ac->out_fmt)); |
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| 323 | |||
| 324 | return ff_convert_dither(ac->dc, out, in); |
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| 325 | } |
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| 326 | |||
| 327 | /* determine whether to use the optimized function based on pointer and |
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| 328 | samples alignment in both the input and output */ |
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| 329 | if (ac->has_optimized_func) { |
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| 330 | int ptr_align = FFMIN(in->ptr_align, out->ptr_align); |
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| 331 | int samples_align = FFMIN(in->samples_align, out->samples_align); |
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| 332 | int aligned_len = FFALIGN(len, ac->samples_align); |
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| 333 | if (!(ptr_align % ac->ptr_align) && samples_align >= aligned_len) { |
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| 334 | len = aligned_len; |
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| 335 | use_generic = 0; |
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| 336 | } |
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| 337 | } |
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| 338 | av_dlog(ac->avr, "%d samples - audio_convert: %s to %s (%s)\n", len, |
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| 339 | av_get_sample_fmt_name(ac->in_fmt), |
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| 340 | av_get_sample_fmt_name(ac->out_fmt), |
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| 341 | use_generic ? ac->func_descr_generic : ac->func_descr); |
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| 342 | |||
| 343 | if (ac->apply_map) { |
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| 344 | ChannelMapInfo *map = &ac->avr->ch_map_info; |
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| 345 | |||
| 346 | if (!av_sample_fmt_is_planar(ac->out_fmt)) { |
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| 347 | av_log(ac->avr, AV_LOG_ERROR, "cannot remap packed format during conversion\n"); |
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| 348 | return AVERROR(EINVAL); |
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| 349 | } |
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| 350 | |||
| 351 | if (map->do_remap) { |
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| 352 | if (av_sample_fmt_is_planar(ac->in_fmt)) { |
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| 353 | conv_func_flat *convert = use_generic ? ac->conv_flat_generic : |
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| 354 | ac->conv_flat; |
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| 355 | |||
| 356 | for (p = 0; p < ac->planes; p++) |
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| 357 | if (map->channel_map[p] >= 0) |
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| 358 | convert(out->data[p], in->data[map->channel_map[p]], len); |
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| 359 | } else { |
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| 360 | uint8_t *data[AVRESAMPLE_MAX_CHANNELS]; |
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| 361 | conv_func_deinterleave *convert = use_generic ? |
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| 362 | ac->conv_deinterleave_generic : |
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| 363 | ac->conv_deinterleave; |
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| 364 | |||
| 365 | for (p = 0; p < ac->channels; p++) |
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| 366 | data[map->input_map[p]] = out->data[p]; |
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| 367 | |||
| 368 | convert(data, in->data[0], len, ac->channels); |
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| 369 | } |
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| 370 | } |
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| 371 | if (map->do_copy || map->do_zero) { |
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| 372 | for (p = 0; p < ac->planes; p++) { |
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| 373 | if (map->channel_copy[p]) |
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| 374 | memcpy(out->data[p], out->data[map->channel_copy[p]], |
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| 375 | len * out->stride); |
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| 376 | else if (map->channel_zero[p]) |
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| 377 | av_samples_set_silence(&out->data[p], 0, len, 1, ac->out_fmt); |
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| 378 | } |
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| 379 | } |
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| 380 | } else { |
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| 381 | switch (ac->func_type) { |
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| 382 | case CONV_FUNC_TYPE_FLAT: { |
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| 383 | if (!in->is_planar) |
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| 384 | len *= in->channels; |
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| 385 | if (use_generic) { |
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| 386 | for (p = 0; p < ac->planes; p++) |
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| 387 | ac->conv_flat_generic(out->data[p], in->data[p], len); |
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| 388 | } else { |
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| 389 | for (p = 0; p < ac->planes; p++) |
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| 390 | ac->conv_flat(out->data[p], in->data[p], len); |
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| 391 | } |
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| 392 | break; |
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| 393 | } |
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| 394 | case CONV_FUNC_TYPE_INTERLEAVE: |
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| 395 | if (use_generic) |
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| 396 | ac->conv_interleave_generic(out->data[0], in->data, len, |
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| 397 | ac->channels); |
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| 398 | else |
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| 399 | ac->conv_interleave(out->data[0], in->data, len, ac->channels); |
||
| 400 | break; |
||
| 401 | case CONV_FUNC_TYPE_DEINTERLEAVE: |
||
| 402 | if (use_generic) |
||
| 403 | ac->conv_deinterleave_generic(out->data, in->data[0], len, |
||
| 404 | ac->channels); |
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| 405 | else |
||
| 406 | ac->conv_deinterleave(out->data, in->data[0], len, |
||
| 407 | ac->channels); |
||
| 408 | break; |
||
| 409 | } |
||
| 410 | } |
||
| 411 | |||
| 412 | out->nb_samples = in->nb_samples; |
||
| 413 | return 0; |
||
| 414 | } |