Split filter_config into its own module

src/filter/chain_filter_plugin.c

@@ -25,7 +25,6 @@
 #include "filter_registry.h"
 
 #include <assert.h>
-#include <string.h>
 
 struct filter_chain {
 	/** the base class */
@@ -179,99 +178,3 @@ filter_chain_append(struct filter *_chain, struct filter *filter)
 	chain->children = g_slist_append(chain->children, filter);
 }
 
-/**
- * Find the "filter" configuration block for the specified name.
- *
- * @param filter_template_name the name of the filter template
- * @return the configuration block, or NULL if none was configured
- */
-static const struct config_param *
-filter_plugin_config(const char *filter_template_name)
-{
-	const struct config_param *param = NULL;
-
-	while ((param = config_get_next_param(CONF_AUDIO_FILTER, param)) != NULL) {
-		const char *name =
-			config_get_block_string(param, "name", NULL);
-		if (name == NULL)
-			g_error("filter configuration without 'name' name in line %d",
-				param->line);
-
-		if (strcmp(name, filter_template_name) == 0)
-			return param;
-	}
-
-	return NULL;
-}
-
-/**
- * Builds a filter chain from a configuration string on the form
- * "name1, name2, name3, ..." by looking up each name among the
- * configured filter sections.
- * @param chain the chain to append filters on
- * @param spec the filter chain specification
- * @return the number of filters which were successfully added
- */
-unsigned int
-filter_chain_parse(struct filter *chain, const char *spec) {
-
-	// Split on comma
-	gchar** tokens = g_strsplit_set(spec, ",", 255);
-
-	int added_filters = 0;
-
-	// Add each name to the filter chain by instantiating an actual filter
-	char **template_names = tokens;
-	while (*template_names != NULL) {
-		const char *plugin_name;
-		const struct filter_plugin *fp;
-		struct filter *f;
-		const struct config_param *cfg;
-
-		// Squeeze whitespace
-		g_strstrip(*template_names);
-
-		cfg = filter_plugin_config(*template_names);
-		if (cfg == NULL) {
-			g_error("Unable to locate filter template %s",
-				*template_names);
-			++template_names;
-			continue;
-		}
-
-		// Figure out what kind of a plugin that is
-		plugin_name = config_get_block_string(cfg, "plugin", NULL);
-		if (plugin_name == NULL) {
-			g_error("filter configuration without 'plugin' at line %d",
-				cfg->line);
-			++template_names;
-			continue;
-		}
-
-		// Instantiate one of those filter plugins with the template name as a hint
-		fp = filter_plugin_by_name(plugin_name);
-		if (fp == NULL) {
-			g_error("filter plugin not found: %s",
-				plugin_name);
-			++template_names;
-			continue;
-		}
-
-		f = filter_new(fp, cfg, NULL);
-		if (f == NULL) {
-			g_error("filter plugin initialization failed: %s",
-				plugin_name);
-			++template_names;
-			continue;
-		}
-
-		filter_chain_append(chain, f);
-		++added_filters;
-
-		++template_names;
-	}
-
-	g_strfreev(tokens);
-
-	return added_filters;
-}

src/filter/chain_filter_plugin.h

@@ -45,16 +45,4 @@ filter_chain_new(void);
 void
 filter_chain_append(struct filter *chain, struct filter *filter);
 
-/**
- * Builds a filter chain from a configuration string on the form
- * "name1, name2, name3, ..." by looking up each name among the
- * configured filter sections. If no filters are specified, a
- * null filter is automatically appended.
- * @param chain the chain to append filters on
- * @param spec the filter chain specification
- * @return the number of filters which were successfully added
- */
-unsigned int
-filter_chain_parse(struct filter *chain, const char *spec);
-
 #endif