/* * 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., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 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; }