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/*
* Copyright (C) 2003-2009 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "output_plugin.h"
#include "output_internal.h"
#include "output_control.h"
#include "conf.h"
#include "audio_parser.h"
#include <glib.h>
#include <assert.h>
#include <string.h>
#include <unistd.h>
void pcm_convert_init(G_GNUC_UNUSED struct pcm_convert_state *state)
{
}
void notify_init(G_GNUC_UNUSED struct notify *notify)
{
}
static const struct config_param *
find_named_config_block(const char *block, const char *name)
{
const struct config_param *param = NULL;
while ((param = config_get_next_param(block, param)) != NULL) {
const char *current_name =
config_get_block_string(param, "name", NULL);
if (current_name != NULL && strcmp(current_name, name) == 0)
return param;
}
return NULL;
}
static bool
load_audio_output(struct audio_output *ao, const char *name)
{
const struct config_param *param;
bool success;
GError *error = NULL;
param = find_named_config_block(CONF_AUDIO_OUTPUT, name);
if (param == NULL) {
g_printerr("No such configured audio output: %s\n", name);
return false;
}
success = audio_output_init(ao, param, &error);
if (!success) {
g_printerr("%s\n", error->message);
g_error_free(error);
}
return success;
}
int main(int argc, char **argv)
{
struct audio_output ao;
struct audio_format audio_format = {
.sample_rate = 44100,
.bits = 16,
.channels = 2,
};
bool success;
GError *error = NULL;
char buffer[4096];
ssize_t nbytes;
size_t frame_size, length = 0, play_length, consumed;
if (argc < 3 || argc > 4) {
g_printerr("Usage: run_output CONFIG NAME [FORMAT] <IN\n");
return 1;
}
g_thread_init(NULL);
/* read configuration file (mpd.conf) */
config_global_init();
config_read_file(argv[1]);
/* initialize the audio output */
if (!load_audio_output(&ao, argv[2]))
return 1;
/* parse the audio format */
if (argc > 3) {
success = audio_format_parse(&audio_format, argv[3], &error);
if (!success) {
g_printerr("Failed to parse audio format: %s\n",
error->message);
g_error_free(error);
return 1;
}
}
/* open the audio output */
success = ao_plugin_open(ao.plugin, ao.data, &audio_format, &error);
if (!success) {
g_printerr("Failed to open audio output: %s\n",
error->message);
g_error_free(error);
return 1;
}
g_printerr("audio_format=%u:%u:%u\n", audio_format.sample_rate,
audio_format.bits, audio_format.channels);
frame_size = audio_format_frame_size(&audio_format);
/* play */
while (true) {
if (length < sizeof(buffer)) {
nbytes = read(0, buffer + length, sizeof(buffer) - length);
if (nbytes <= 0)
break;
length += (size_t)nbytes;
}
play_length = (length / frame_size) * frame_size;
if (play_length > 0) {
consumed = ao_plugin_play(ao.plugin, ao.data,
buffer, play_length,
&error);
if (consumed == 0) {
g_printerr("Failed to play: %s\n",
error->message);
g_error_free(error);
return 1;
}
assert(consumed <= length);
assert(consumed % frame_size == 0);
length -= consumed;
memmove(buffer, buffer + consumed, length);
}
}
/* cleanup and exit */
ao_plugin_close(ao.plugin, ao.data);
ao_plugin_finish(ao.plugin, ao.data);
g_mutex_free(ao.mutex);
config_global_finish();
return 0;
}
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