/* * dummy output driver. This file is part of Shairport. * Copyright (c) James Laird 2013 * All rights reserved. * * Modifications for audio synchronisation * and related work, copyright (c) Mike Brady 2014 * All rights reserved. * * Permission is hereby granted, free of charge, to any person * obtaining a copy of this software and associated documentation * files (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, * copy, modify, merge, publish, distribute, sublicense, and/or * sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #include "audio.h" #include "common.h" #include #include #include static int init(__attribute__((unused)) int argc, __attribute__((unused)) char **argv) { return 0; } static void deinit(void) {} static void start(int sample_rate, __attribute__((unused)) int sample_format) { debug(1, "dummy audio output started at %d frames per second.", sample_rate); } static int play(__attribute__((unused)) void *buf, __attribute__((unused)) int samples) { return 0; } static void stop(void) { debug(1, "dummy audio stopped\n"); } audio_output audio_dummy = {.name = "dummy", .help = NULL, .init = &init, .deinit = &deinit, .prepare = NULL, .start = &start, .stop = &stop, .is_running = NULL, .flush = NULL, .delay = NULL, .play = &play, .volume = NULL, .parameters = NULL, .mute = NULL};