mirror of
https://github.com/owntone/owntone-server.git
synced 2025-01-02 10:33:23 -05:00
c8e793fd0c
introduces a dummy output for local audio Changes configure.ac to control the with-alsa and with-oss4 separately. This makes it possible to only use the dummy output and compile without alse+oss4.
159 lines
3.3 KiB
C
159 lines
3.3 KiB
C
/*
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* Copyright (C) 2015 Christian Meffert <christian.meffert@googlemail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <stdint.h>
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#include <inttypes.h>
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#include "conffile.h"
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#include "logger.h"
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#include "misc.h"
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#include "player.h"
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#include "laudio.h"
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static enum laudio_state pcm_status;
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static laudio_status_cb status_cb;
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static struct timespec timer_res;
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static struct timespec ts;
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static uint64_t pcmpos;
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static uint64_t
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laudio_dummy_get_pos(void)
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{
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struct timespec cur_timer_res;
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struct timespec cur_ts;
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uint64_t delta;
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int ret;
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ret = clock_gettime_with_res(CLOCK_MONOTONIC, &cur_ts, &cur_timer_res);
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if (ret < 0)
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{
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DPRINTF(E_LOG, L_LAUDIO, "Couldn't get clock: %s\n", strerror(errno));
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return -1;
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}
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delta = (cur_ts.tv_sec - ts.tv_sec) * 1000000 + (cur_ts.tv_nsec - ts.tv_nsec) / 1000;
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delta = (delta * 44100) / 1000000;
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DPRINTF(E_DBG, L_LAUDIO, "Start: %" PRIu64 ", Pos: %" PRIu64 "\n", pcmpos, delta);
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return (pcmpos + delta);
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}
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static void
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laudio_dummy_write(uint8_t *buf, uint64_t rtptime)
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{
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uint64_t pos;
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pos = laudio_dummy_get_pos();
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if (pcm_status != LAUDIO_RUNNING && pos > (pcmpos + 88200))
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{
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pcm_status = LAUDIO_RUNNING;
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status_cb(LAUDIO_RUNNING);
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}
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}
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static void
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laudio_dummy_set_volume(int vol)
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{
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}
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static int
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laudio_dummy_start(uint64_t cur_pos, uint64_t next_pkt)
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{
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int ret;
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ret = clock_gettime_with_res(CLOCK_MONOTONIC, &ts, &timer_res);
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if (ret < 0)
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{
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DPRINTF(E_LOG, L_LAUDIO, "Couldn't get current clock: %s\n", strerror(errno));
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return -1;
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}
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pcmpos = cur_pos;
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pcm_status = LAUDIO_STARTED;
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status_cb(LAUDIO_STARTED);
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return 0;
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}
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static void
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laudio_dummy_stop(void)
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{
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pcm_status = LAUDIO_STOPPING;
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status_cb(LAUDIO_STOPPING);
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pcm_status = LAUDIO_OPEN;
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status_cb(LAUDIO_OPEN);
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}
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static int
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laudio_dummy_open(void)
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{
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pcm_status = LAUDIO_OPEN;
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status_cb(LAUDIO_OPEN);
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return 0;
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}
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static void
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laudio_dummy_close(void)
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{
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pcm_status = LAUDIO_CLOSED;
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status_cb(LAUDIO_CLOSED);
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}
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static int
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laudio_dummy_init(laudio_status_cb cb, cfg_t *cfg_audio)
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{
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status_cb = cb;
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return 0;
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}
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static void
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laudio_dummy_deinit(void)
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{
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}
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audio_output audio_dummy = {
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.name = "dummy",
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.init = &laudio_dummy_init,
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.deinit = &laudio_dummy_deinit,
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.start = &laudio_dummy_start,
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.stop = &laudio_dummy_stop,
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.open = &laudio_dummy_open,
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.close = &laudio_dummy_close,
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.pos = &laudio_dummy_get_pos,
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.write = &laudio_dummy_write,
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.volume = &laudio_dummy_set_volume,
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};
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