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/*
* 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 <stdio.h>
#include <sys/time.h>
#include <unistd.h>
int Fs;
long long starttime, samples_played;
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) {
Fs = sample_rate;
starttime = 0;
samples_played = 0;
debug(1, "dummy audio output started at Fs=%d Hz\n", 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};
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