cmdline: print out list of encoders in --version info

configure.ac

@@ -1173,6 +1173,10 @@ if test x$enable_httpd_output = xyes; then
 fi
 
 AM_CONDITIONAL(ENABLE_ENCODER, test x$enable_encoder = xyes)
+if test x$enable_encoder = xyes; then
+	AC_DEFINE(ENABLE_ENCODER, 1,
+		[Define to enable the encoder plugins])
+fi
 
 AM_CONDITIONAL(ENABLE_VORBIS_ENCODER, test x$enable_vorbis_encoder = xyes)
 if test x$enable_vorbis_encoder = xyes; then

src/cmdline.c

@@ -27,6 +27,10 @@
 #include "output_list.h"
 #include "ls.h"
 
+#ifdef ENABLE_ENCODER
+#include "encoder_list.h"
+#endif
+
 #ifdef ENABLE_ARCHIVE
 #include "archive_list.h"
 #endif
@@ -82,6 +86,13 @@ static void version(void)
 	     "Supported outputs:\n");
 	audio_output_plugin_print_all_types(stdout);
 
+#ifdef ENABLE_ENCODER
+	puts("\n"
+	     "Supported encoders:\n");
+	encoder_plugin_print_all_types(stdout);
+#endif
+
+
 #ifdef ENABLE_ARCHIVE
 	puts("\n"
 	     "Supported archives:\n");

src/encoder_list.c

@@ -59,3 +59,13 @@ encoder_plugin_get(const char *name)
 
 	return NULL;
 }
+
+void
+encoder_plugin_print_all_types(FILE * fp)
+{
+	for (unsigned i = 0; encoder_plugins[i] != NULL; ++i)
+		fprintf(fp, "%s ", encoder_plugins[i]->name);
+
+	fprintf(fp, "\n");
+	fflush(fp);
+}

src/encoder_list.h

@@ -20,6 +20,8 @@
 #ifndef MPD_ENCODER_LIST_H
 #define MPD_ENCODER_LIST_H
 
+#include <stdio.h>
+
 struct encoder_plugin;
 
 /**
@@ -32,4 +34,7 @@ struct encoder_plugin;
 const struct encoder_plugin *
 encoder_plugin_get(const char *name);
 
+void
+encoder_plugin_print_all_types(FILE * fp);
+
 #endif