test/run_output.c

   1 /*
   2  * Copyright (C) 2003-2010 The Music Player Daemon Project
   3  * http://www.musicpd.org
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19
  20 #include "config.h"
  21 #include "output_plugin.h"
  22 #include "output_internal.h"
  23 #include "output_control.h"
  24 #include "conf.h"
  25 #include "audio_parser.h"
  26 #include "filter_registry.h"
  27 #include "pcm_convert.h"
  28 #include "event_pipe.h"
  29 #include "idle.h"
  30
  31 #include <glib.h>
  32
  33 #include <assert.h>
  34 #include <string.h>
  35 #include <unistd.h>
  36
  37 void
  38 idle_add(G_GNUC_UNUSED unsigned flags)
  39 {
  40 }
  41
  42 void
  43 event_pipe_emit(G_GNUC_UNUSED enum pipe_event event)
  44 {
  45 }
  46
  47 void pcm_convert_init(G_GNUC_UNUSED struct pcm_convert_state *state)
  48 {
  49 }
  50
  51 void pcm_convert_deinit(G_GNUC_UNUSED struct pcm_convert_state *state)
  52 {
  53 }
  54
  55 const void *
  56 pcm_convert(G_GNUC_UNUSED struct pcm_convert_state *state,
  57             G_GNUC_UNUSED const struct audio_format *src_format,
  58             G_GNUC_UNUSED const void *src, G_GNUC_UNUSED size_t src_size,
  59             G_GNUC_UNUSED const struct audio_format *dest_format,
  60             G_GNUC_UNUSED size_t *dest_size_r,
  61             GError **error_r)
  62 {
  63         g_set_error(error_r, pcm_convert_quark(), 0,
  64                     "Not implemented");
  65         return NULL;
  66 }
  67
  68 const struct filter_plugin *
  69 filter_plugin_by_name(G_GNUC_UNUSED const char *name)
  70 {
  71         assert(false);
  72         return NULL;
  73 }
  74
  75 static const struct config_param *
  76 find_named_config_block(const char *block, const char *name)
  77 {
  78         const struct config_param *param = NULL;
  79
  80         while ((param = config_get_next_param(block, param)) != NULL) {
  81                 const char *current_name =
  82                         config_get_block_string(param, "name", NULL);
  83                 if (current_name != NULL && strcmp(current_name, name) == 0)
  84                         return param;
  85         }
  86
  87         return NULL;
  88 }
  89
  90 static bool
  91 load_audio_output(struct audio_output *ao, const char *name)
  92 {
  93         const struct config_param *param;
  94         bool success;
  95         GError *error = NULL;
  96
  97         param = find_named_config_block(CONF_AUDIO_OUTPUT, name);
  98         if (param == NULL) {
  99                 g_printerr("No such configured audio output: %s\n", name);
 100                 return false;
 101         }
 102
 103         success = audio_output_init(ao, param, &error);
 104         if (!success) {
 105                 g_printerr("%s\n", error->message);
 106                 g_error_free(error);
 107         }
 108
 109         return success;
 110 }
 111
 112 int main(int argc, char **argv)
 113 {
 114         struct audio_output ao;
 115         struct audio_format audio_format;
 116         struct audio_format_string af_string;
 117         bool success;
 118         GError *error = NULL;
 119         char buffer[4096];
 120         ssize_t nbytes;
 121         size_t frame_size, length = 0, play_length, consumed;
 122
 123         if (argc < 3 || argc > 4) {
 124                 g_printerr("Usage: run_output CONFIG NAME [FORMAT] <IN\n");
 125                 return 1;
 126         }
 127
 128         audio_format_init(&audio_format, 44100, SAMPLE_FORMAT_S16, 2);
 129
 130         g_thread_init(NULL);
 131
 132         /* read configuration file (mpd.conf) */
 133
 134         config_global_init();
 135         success = config_read_file(argv[1], &error);
 136         if (!success) {
 137                 g_printerr("%s:", error->message);
 138                 g_error_free(error);
 139                 return 1;
 140         }
 141
 142         /* initialize the audio output */
 143
 144         if (!load_audio_output(&ao, argv[2]))
 145                 return 1;
 146
 147         /* parse the audio format */
 148
 149         if (argc > 3) {
 150                 success = audio_format_parse(&audio_format, argv[3],
 151                                              false, &error);
 152                 if (!success) {
 153                         g_printerr("Failed to parse audio format: %s\n",
 154                                    error->message);
 155                         g_error_free(error);
 156                         return 1;
 157                 }
 158         }
 159
 160         /* open the audio output */
 161
 162         success = ao_plugin_open(ao.plugin, ao.data, &audio_format, &error);
 163         if (!success) {
 164                 g_printerr("Failed to open audio output: %s\n",
 165                            error->message);
 166                 g_error_free(error);
 167                 return 1;
 168         }
 169
 170         g_printerr("audio_format=%s\n",
 171                    audio_format_to_string(&audio_format, &af_string));
 172
 173         frame_size = audio_format_frame_size(&audio_format);
 174
 175         /* play */
 176
 177         while (true) {
 178                 if (length < sizeof(buffer)) {
 179                         nbytes = read(0, buffer + length, sizeof(buffer) - length);
 180                         if (nbytes <= 0)
 181                                 break;
 182
 183                         length += (size_t)nbytes;
 184                 }
 185
 186                 play_length = (length / frame_size) * frame_size;
 187                 if (play_length > 0) {
 188                         consumed = ao_plugin_play(ao.plugin, ao.data,
 189                                                   buffer, play_length,
 190                                                   &error);
 191                         if (consumed == 0) {
 192                                 g_printerr("Failed to play: %s\n",
 193                                            error->message);
 194                                 g_error_free(error);
 195                                 return 1;
 196                         }
 197
 198                         assert(consumed <= length);
 199                         assert(consumed % frame_size == 0);
 200
 201                         length -= consumed;
 202                         memmove(buffer, buffer + consumed, length);
 203                 }
 204         }
 205
 206         /* cleanup and exit */
 207
 208         ao_plugin_close(ao.plugin, ao.data);
 209         ao_plugin_finish(ao.plugin, ao.data);
 210         g_mutex_free(ao.mutex);
 211
 212         config_global_finish();
 213
 214         return 0;
 215 }