[559] | 1 | //codecfilter_wave.c: |
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| 2 | |
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[668] | 3 | /* |
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| 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008 |
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| 5 | * |
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| 6 | * This file is part of roard a part of RoarAudio, |
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| 7 | * a cross-platform sound system for both, home and professional use. |
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| 8 | * See README for details. |
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| 9 | * |
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| 10 | * This file is free software; you can redistribute it and/or modify |
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| 11 | * it under the terms of the GNU General Public License version 3 |
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| 12 | * as published by the Free Software Foundation. |
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| 13 | * |
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| 14 | * RoarAudio is distributed in the hope that it will be useful, |
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| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 17 | * GNU General Public License for more details. |
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| 18 | * |
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| 19 | * You should have received a copy of the GNU General Public License |
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| 20 | * along with this software; see the file COPYING. If not, write to |
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| 21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 22 | * |
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| 23 | */ |
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| 24 | |
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[559] | 25 | #include "roard.h" |
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| 26 | |
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[2505] | 27 | #ifndef ROAR_WITHOUT_CF_WAVE |
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| 28 | |
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[559] | 29 | int cf_wave_open(CODECFILTER_USERDATA_T * inst, int codec, |
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| 30 | struct roar_stream_server * info, |
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| 31 | struct roar_codecfilter * filter) { |
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| 32 | struct codecfilter_wave_inst * self = malloc(sizeof(struct codecfilter_wave_inst)); |
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[609] | 33 | struct roar_stream * s = ROAR_STREAM(info); |
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[559] | 34 | |
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| 35 | if ( !self ) |
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| 36 | return -1; |
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| 37 | |
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| 38 | self->stream = info; |
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| 39 | self->opened = 0; |
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| 40 | |
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| 41 | *inst = (CODECFILTER_USERDATA_T) self; |
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| 42 | |
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| 43 | memcpy(&(s->info), g_sa, sizeof(struct roar_audio_info)); |
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| 44 | return 0; |
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| 45 | } |
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| 46 | |
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| 47 | int cf_wave_close(CODECFILTER_USERDATA_T inst) { |
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[562] | 48 | // struct codecfilter_wave_inst * self = (struct codecfilter_wave_inst *) inst; |
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[559] | 49 | |
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| 50 | if ( !inst ) |
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| 51 | return -1; |
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| 52 | |
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| 53 | free(inst); |
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| 54 | return 0; |
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| 55 | } |
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| 56 | |
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| 57 | int cf_wave_read(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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| 58 | struct codecfilter_wave_inst * self = (struct codecfilter_wave_inst *) inst; |
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| 59 | int r = -1; |
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[562] | 60 | char tbuf[44]; |
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[559] | 61 | struct roar_stream * s = ROAR_STREAM(self->stream); |
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[2590] | 62 | uint16_t tmp16; |
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| 63 | uint32_t tmp32; |
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| 64 | int codec = -1; |
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[559] | 65 | |
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| 66 | if ( self->opened ) { |
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[606] | 67 | return stream_vio_s_read(self->stream, buf, len); |
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[559] | 68 | } else { |
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[606] | 69 | if (stream_vio_s_read(self->stream, tbuf, 44) != 44) { |
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[559] | 70 | return -1; |
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| 71 | } |
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[565] | 72 | |
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| 73 | // TODO: write better code here! |
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| 74 | |
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[2590] | 75 | memcpy(&tmp32, tbuf+24, 4); |
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| 76 | s->info.rate = ROAR_LE2HOST32(tmp32); |
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| 77 | |
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| 78 | memcpy(&tmp16, tbuf+22, 2); |
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| 79 | s->info.channels = ROAR_LE2HOST16(tmp16); |
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| 80 | |
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| 81 | memcpy(&tmp16, tbuf+34, 2); |
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| 82 | s->info.bits = ROAR_LE2HOST16(tmp16); |
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| 83 | |
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| 84 | memcpy(&tmp16, tbuf+20, 2); |
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| 85 | |
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| 86 | switch (ROAR_LE2HOST16(tmp16)) { |
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| 87 | case ROAR_RIFF_WAVE_CID_PCM: |
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| 88 | if ( s->info.bits == 8 ) { |
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| 89 | codec = ROAR_CODEC_PCM_U_LE; |
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| 90 | } else { |
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| 91 | codec = ROAR_CODEC_PCM_S_LE; |
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| 92 | } |
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| 93 | break; |
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| 94 | case ROAR_RIFF_WAVE_CID_ALAW: |
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| 95 | codec = ROAR_CODEC_ALAW; |
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| 96 | break; |
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| 97 | case ROAR_RIFF_WAVE_CID_MULAW: |
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| 98 | codec = ROAR_CODEC_MULAW; |
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| 99 | break; |
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| 100 | case ROAR_RIFF_WAVE_CID_IEEE_FLOAT: |
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| 101 | default: |
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| 102 | return -1; |
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| 103 | } |
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| 104 | |
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| 105 | s->info.codec = codec; |
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[559] | 106 | |
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[564] | 107 | self->opened = 1; |
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| 108 | |
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[559] | 109 | errno = EAGAIN; |
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| 110 | return -1; |
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| 111 | } |
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| 112 | |
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| 113 | return r; |
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| 114 | } |
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| 115 | |
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| 116 | int cf_wave_write(CODECFILTER_USERDATA_T inst, char * buf, int len) { |
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| 117 | struct codecfilter_wave_inst * self = (struct codecfilter_wave_inst *) inst; |
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[1012] | 118 | struct roar_stream * s = ROAR_STREAM(self->stream); |
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| 119 | char header[44]; |
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| 120 | int32_t tmp32; |
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| 121 | int16_t tmp16; |
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| 122 | int16_t bits; |
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| 123 | int16_t codec; |
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[559] | 124 | |
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[1013] | 125 | ROAR_DBG("cf_wave_write(inst=%p, buf=%p, len=%i) = ?", inst, buf, len); |
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| 126 | ROAR_DBG("cf_wave_write(inst=%p, buf=%p, len=%i): self->opened=%i", inst, buf, len, self->opened); |
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[1012] | 127 | |
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| 128 | if ( self->opened ) { |
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| 129 | return stream_vio_s_write(self->stream, buf, len); |
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| 130 | } else { |
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| 131 | |
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| 132 | if ( s->fh == -1 ) { |
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| 133 | errno = EAGAIN; |
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| 134 | return -1; |
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| 135 | } |
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| 136 | |
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| 137 | memcpy(header , "RIFF\367\377\377\177WAVEfmt \020", 17); |
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| 138 | memcpy(header+36, "data\313\377\377\177", 8); |
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| 139 | |
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| 140 | switch (s->info.codec) { |
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| 141 | case ROAR_CODEC_PCM_S_LE: |
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| 142 | codec = 0x0001; |
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| 143 | break; |
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| 144 | default: |
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| 145 | ROAR_ERR("cf_wave_write(*) Codec not supported!"); |
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| 146 | return -1; |
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| 147 | break; |
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| 148 | } |
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| 149 | |
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[1013] | 150 | ROAR_DBG("cf_wave_write(*) Codec supported!"); |
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[1012] | 151 | |
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| 152 | bits = s->info.bits; |
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| 153 | memcpy(header+24, &(s->info.rate ), 4); |
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| 154 | memcpy(header+22, &(s->info.channels), 2); |
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| 155 | memcpy(header+34, &bits, 2); |
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| 156 | |
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| 157 | tmp16 = s->info.channels * bits / 8; |
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| 158 | memcpy(header+32, &tmp16, 2); |
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| 159 | tmp32 = tmp16 * s->info.rate; |
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| 160 | memcpy(header+28, &tmp32, 4); |
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| 161 | memcpy(header+20, &codec, 2); |
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| 162 | |
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| 163 | if ( stream_vio_s_write(self->stream, header, 44) != 44 ) |
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| 164 | return -1; |
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| 165 | |
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| 166 | self->opened = 1; |
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| 167 | |
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| 168 | errno = EAGAIN; |
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| 169 | // return -1; |
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| 170 | |
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| 171 | len = stream_vio_s_write(self->stream, buf, len); |
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| 172 | |
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| 173 | cf_wave_close(inst); |
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| 174 | ROAR_STREAM_SERVER(s)->codecfilter = -1; |
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| 175 | |
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| 176 | return len; |
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| 177 | |
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| 178 | // return stream_vio_s_write(self->stream, buf, len); |
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| 179 | } |
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| 180 | |
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| 181 | return -1; |
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[559] | 182 | } |
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| 183 | |
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[2505] | 184 | #endif |
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| 185 | |
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[559] | 186 | //ll |
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