diff options
Diffstat (limited to 'test/run_filter.cxx')
| -rw-r--r-- | test/run_filter.cxx | 196 |
1 files changed, 196 insertions, 0 deletions
diff --git a/test/run_filter.cxx b/test/run_filter.cxx new file mode 100644 index 00000000..990a57df --- /dev/null +++ b/test/run_filter.cxx @@ -0,0 +1,196 @@ +/* + * Copyright (C) 2003-2013 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 "config.h" +#include "conf.h" + +extern "C" { +#include "audio_parser.h" +} + +#include "audio_format.h" +#include "filter_plugin.h" +#include "pcm_volume.h" +#include "mixer_control.h" +#include "stdbin.h" + +#include <glib.h> + +#include <assert.h> +#include <string.h> +#include <errno.h> +#include <unistd.h> + +bool +mixer_set_volume(G_GNUC_UNUSED struct mixer *mixer, + G_GNUC_UNUSED unsigned volume, G_GNUC_UNUSED GError **error_r) +{ + return true; +} + +static void +my_log_func(const gchar *log_domain, G_GNUC_UNUSED GLogLevelFlags log_level, + const gchar *message, G_GNUC_UNUSED gpointer user_data) +{ + if (log_domain != NULL) + g_printerr("%s: %s\n", log_domain, message); + else + g_printerr("%s\n", message); +} + +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 struct filter * +load_filter(const char *name) +{ + const struct config_param *param; + struct filter *filter; + GError *error = NULL; + + param = find_named_config_block("filter", name); + if (param == NULL) { + g_printerr("No such configured filter: %s\n", name); + return nullptr; + } + + filter = filter_configured_new(param, &error); + if (filter == NULL) { + g_printerr("Failed to load filter: %s\n", error->message); + g_error_free(error); + return NULL; + } + + return filter; +} + +int main(int argc, char **argv) +{ + struct audio_format audio_format; + struct audio_format_string af_string; + bool success; + GError *error = NULL; + struct filter *filter; + const struct audio_format *out_audio_format; + char buffer[4096]; + + if (argc < 3 || argc > 4) { + g_printerr("Usage: run_filter CONFIG NAME [FORMAT] <IN\n"); + return 1; + } + + audio_format_init(&audio_format, 44100, SAMPLE_FORMAT_S16, 2); + + /* initialize GLib */ + + g_thread_init(NULL); + g_log_set_default_handler(my_log_func, NULL); + + /* read configuration file (mpd.conf) */ + + config_global_init(); + success = config_read_file(argv[1], &error); + if (!success) { + g_printerr("%s:", error->message); + g_error_free(error); + return 1; + } + + /* parse the audio format */ + + if (argc > 3) { + success = audio_format_parse(&audio_format, argv[3], + false, &error); + if (!success) { + g_printerr("Failed to parse audio format: %s\n", + error->message); + g_error_free(error); + return 1; + } + } + + /* initialize the filter */ + + filter = load_filter(argv[2]); + if (filter == NULL) + return 1; + + /* open the filter */ + + out_audio_format = filter_open(filter, &audio_format, &error); + if (out_audio_format == NULL) { + g_printerr("Failed to open filter: %s\n", error->message); + g_error_free(error); + filter_free(filter); + return 1; + } + + g_printerr("audio_format=%s\n", + audio_format_to_string(out_audio_format, &af_string)); + + /* play */ + + while (true) { + ssize_t nbytes; + size_t length; + const void *dest; + + nbytes = read(0, buffer, sizeof(buffer)); + if (nbytes <= 0) + break; + + dest = filter_filter(filter, buffer, (size_t)nbytes, + &length, &error); + if (dest == NULL) { + g_printerr("Filter failed: %s\n", error->message); + filter_close(filter); + filter_free(filter); + return 1; + } + + nbytes = write(1, dest, length); + if (nbytes < 0) { + g_printerr("Failed to write: %s\n", g_strerror(errno)); + filter_close(filter); + filter_free(filter); + return 1; + } + } + + /* cleanup and exit */ + + filter_close(filter); + filter_free(filter); + + config_global_finish(); + + return 0; +} |