[0] | 1 | //loop.c: |
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| 2 | |
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[668] | 3 | /* |
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[5381] | 4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2012 |
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[668] | 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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[3517] | 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
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| 22 | * Boston, MA 02110-1301, USA. |
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[668] | 23 | * |
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| 24 | */ |
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| 25 | |
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[0] | 26 | #include "roard.h" |
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| 27 | |
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[4811] | 28 | int main_loop (struct roar_audio_info * sa, int sysclocksync) { |
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[0] | 29 | void ** streams_input = NULL; |
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[547] | 30 | int term = 0; |
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| 31 | int streams; |
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[1488] | 32 | #ifdef ROAR_HAVE_GETTIMEOFDAY |
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[905] | 33 | long int loopc = 0; |
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[9] | 34 | struct timeval try, ans; |
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[905] | 35 | float freq; |
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[1488] | 36 | #endif |
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[2530] | 37 | #ifdef ROAR_SUPPORT_LISTEN |
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| 38 | int i; |
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| 39 | int have_listen; |
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| 40 | #endif |
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[905] | 41 | #ifdef MONITOR_LATENCY |
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[9] | 42 | long int ans_1last = 0, ans_2last = 0, ans_3last = 0; |
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| 43 | |
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| 44 | printf("\n\e[s"); |
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| 45 | fflush(stdout); |
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| 46 | #endif |
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[0] | 47 | |
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| 48 | ROAR_DBG("main_loop(*) = ?"); |
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[982] | 49 | // alive = 1; |
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[258] | 50 | g_pos = 0; |
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[0] | 51 | |
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[1488] | 52 | #ifdef ROAR_HAVE_GETTIMEOFDAY |
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[905] | 53 | if ( sysclocksync ) { |
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| 54 | gettimeofday(&try, NULL); |
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| 55 | } |
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[1488] | 56 | #endif |
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[905] | 57 | |
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[0] | 58 | while (alive) { |
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[1488] | 59 | #if defined(MONITOR_LATENCY) && defined(ROAR_HAVE_GETTIMEOFDAY) |
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[9] | 60 | gettimeofday(&try, NULL); |
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| 61 | #endif |
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| 62 | |
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[0] | 63 | ROAR_DBG("main_loop(*): looping..."); |
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| 64 | |
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[1494] | 65 | #ifdef ROAR_SUPPORT_LISTEN |
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[2530] | 66 | have_listen = 0; |
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| 67 | for (i = 0; i < ROAR_MAX_LISTEN_SOCKETS; i++) { |
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[3802] | 68 | if ( g_listen[i].used ) { |
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[2530] | 69 | have_listen = 1; |
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| 70 | break; |
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| 71 | } |
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| 72 | } |
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| 73 | |
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| 74 | if ( have_listen ) { |
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[68] | 75 | ROAR_DBG("main_loop(*): check for new clients..."); |
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| 76 | net_check_listen(); |
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| 77 | } |
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[1494] | 78 | #endif |
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[0] | 79 | |
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| 80 | ROAR_DBG("main_loop(*): check for new data..."); |
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[1494] | 81 | #ifdef ROAR_SUPPORT_LISTEN |
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[2530] | 82 | if ( clients_check_all() == 0 && g_terminate && !have_listen ) { |
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[1494] | 83 | #else |
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| 84 | if ( clients_check_all() == 0 && g_terminate ) { |
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| 85 | #endif |
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[547] | 86 | term = 1; |
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| 87 | } |
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[0] | 88 | |
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[2500] | 89 | #ifndef ROAR_WITHOUT_DCOMP_MIDI |
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[1903] | 90 | ROAR_DBG("main_loop(*): updating midi subsystem..."); |
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[1855] | 91 | midi_update(); |
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[2500] | 92 | #endif |
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[1855] | 93 | |
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[4820] | 94 | if ( waveform_update_inputs() == -1 ) |
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| 95 | alive = 0; |
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| 96 | |
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[0] | 97 | ROAR_DBG("main_loop(*): mixing clients..."); |
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| 98 | if ( g_standby ) { |
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| 99 | // while in standby we still neet to get the buffers to free input buffer space. |
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[547] | 100 | streams = streams_get_mixbuffers(&streams_input, sa, g_pos); |
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[0] | 101 | } else { |
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[547] | 102 | if ( ( streams = streams_get_mixbuffers(&streams_input, sa, g_pos)) != -1 ) { |
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[2932] | 103 | roar_mix_pcm(g_output_buffer, sa->bits, streams_input, ROAR_OUTPUT_BUFFER_SAMPLES * sa->channels); |
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[0] | 104 | } |
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| 105 | } |
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| 106 | |
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[547] | 107 | if ( term && streams < 1 ) |
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| 108 | alive = 0; |
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| 109 | |
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[2947] | 110 | if ( waveform_update_mixer() == -1 ) |
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| 111 | alive = 0; |
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| 112 | |
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[0] | 113 | /* |
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| 114 | // while in standby we still need to write out our buffer to not run in an endless loop without |
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| 115 | // a break |
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| 116 | */ |
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| 117 | |
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[3362] | 118 | if ( plugins_update() == -1 ) |
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| 119 | alive = 0; |
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[1903] | 120 | |
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| 121 | ROAR_DBG("main_loop(*): sending output data..."); |
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| 122 | |
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[1750] | 123 | #ifdef ROAR_HAVE_USLEEP |
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[920] | 124 | if ( g_standby || (streams < 1 && g_autostandby) ) { |
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[4896] | 125 | roar_usleep(((uint_least32_t)1000000 * ROAR_OUTPUT_BUFFER_SAMPLES) / sa->rate); |
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[729] | 126 | ROAR_DBG("usleep(%u) = ?\n", (1000000 * ROAR_OUTPUT_BUFFER_SAMPLES) / sa->rate); |
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[0] | 127 | } else { |
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[1750] | 128 | #endif |
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[258] | 129 | clients_send_filter(sa, g_pos); |
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[5022] | 130 | // streams_send_filter_all(); // this currently results in deadlocks. |
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[258] | 131 | clients_send_mon(sa, g_pos); |
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[1750] | 132 | #ifdef ROAR_HAVE_USLEEP |
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[0] | 133 | } |
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[1750] | 134 | #endif |
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[257] | 135 | |
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[2500] | 136 | #ifndef ROAR_WITHOUT_DCOMP_MIDI |
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[1855] | 137 | midi_reinit(); |
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[2500] | 138 | #endif |
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[2489] | 139 | #ifndef ROAR_WITHOUT_DCOMP_SSYNTH |
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[2467] | 140 | ssynth_update(); |
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[2489] | 141 | #endif |
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[2495] | 142 | #ifndef ROAR_WITHOUT_DCOMP_LIGHT |
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[1966] | 143 | light_reinit(); |
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[2495] | 144 | #endif |
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[1855] | 145 | |
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[0] | 146 | // output_buffer_reinit(); |
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| 147 | |
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[982] | 148 | g_pos = ROAR_MATH_OVERFLOW_ADD(g_pos, ROAR_OUTPUT_BUFFER_SAMPLES*g_sa->channels); |
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[259] | 149 | ROAR_DBG("main_loop(*): current pos: %u", g_pos); |
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[1488] | 150 | #if defined(MONITOR_LATENCY) && defined(ROAR_HAVE_GETTIMEOFDAY) |
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[9] | 151 | gettimeofday(&ans, NULL); |
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| 152 | |
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| 153 | while (ans.tv_sec > try.tv_sec) { |
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| 154 | ans.tv_sec--; |
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| 155 | ans.tv_usec += 1000000; |
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| 156 | } |
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| 157 | ans.tv_usec -= try.tv_usec; |
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| 158 | |
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[36] | 159 | if ( loopc % 128 ) { |
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[9] | 160 | printf("\e[ucurrent latency: %.3fms average: %.3fms ", ans.tv_usec / (double)1000, |
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| 161 | (ans.tv_usec+ans_3last+ans_2last+ans_1last)/ (double)4000); |
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| 162 | fflush(stdout); |
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| 163 | } |
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| 164 | |
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| 165 | ans_3last = ans_2last; |
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| 166 | ans_2last = ans_1last; |
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| 167 | ans_1last = ans.tv_usec; |
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| 168 | #endif |
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[905] | 169 | |
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[1488] | 170 | #ifdef ROAR_HAVE_GETTIMEOFDAY |
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[906] | 171 | if ( sysclocksync && !(loopc % sysclocksync) ) { |
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[905] | 172 | gettimeofday(&ans, NULL); |
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| 173 | |
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| 174 | while (ans.tv_sec > try.tv_sec) { |
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| 175 | ans.tv_sec--; |
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| 176 | ans.tv_usec += 1000000; |
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| 177 | } |
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| 178 | ans.tv_usec -= try.tv_usec; |
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| 179 | |
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| 180 | |
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| 181 | freq = (sysclocksync * ROAR_OUTPUT_BUFFER_SAMPLES) / (ans.tv_usec / 1e6); |
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[2410] | 182 | printf("SYNC: f_conf=%iHz, f_real=%.2fHz diff=%+.3f%%\n", sa->rate, freq, 100*(freq/sa->rate - 1)); |
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[905] | 183 | |
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| 184 | // memcpy(&try, &ans, sizeof(try)); |
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| 185 | gettimeofday(&try, NULL); |
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| 186 | } |
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| 187 | |
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| 188 | if ( sysclocksync ) |
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| 189 | loopc++; |
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[1488] | 190 | #endif |
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[0] | 191 | } |
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| 192 | |
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| 193 | return -1; |
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| 194 | } |
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| 195 | |
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| 196 | //ll |
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