[FFmpeg-cvslog] cmdutils: Print a more sensible message in show_filters() w/o libavfilter

[Diego Biurrun]

ffmpeg | branch: master | Diego Biurrun <diego at biurrun.de> | Tue Sep  2 23:25:33 2014 +0200| [2dd09ebf5597fd5e4a573bee9cccf21ae821f286] | committer: Diego Biurrun

cmdutils: Print a more sensible message in show_filters() w/o libavfilter

Also avoid an unused variable warning for compilers w/o av_unused support.

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2dd09ebf5597fd5e4a573bee9cccf21ae821f286
---

 cmdutils.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/cmdutils.c b/cmdutils.c
index 202b288..96b40f3 100644
--- a/cmdutils.c
+++ b/cmdutils.c
@@ -1161,12 +1161,14 @@ int show_protocols(void *optctx, const char *opt, const char *arg)
 
 int show_filters(void *optctx, const char *opt, const char *arg)
 {
-    const AVFilter av_unused(*filter) = NULL;
+#if CONFIG_AVFILTER
+    const AVFilter *filter = NULL;
 
     printf("Filters:\n");
-#if CONFIG_AVFILTER
     while ((filter = avfilter_next(filter)))
         printf("%-16s %s\n", filter->name, filter->description);
+#else
+    printf("No filters available: libavfilter disabled\n");
 #endif
     return 0;
 }