Change avfilter_open() signature, from:

AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name);
to:
int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);

This way it is possible to propagate an error code telling the reason
of the failure.

Originally committed as revision 24765 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 1 insertions, 1 deletions

diff --git a/tools/lavfi-showfiltfmts.c b/tools/lavfi-showfiltfmts.c
index 0671bcd514..b0787ea764 100644
--- a/tools/lavfi-showfiltfmts.c
+++ b/tools/lavfi-showfiltfmts.c
@@ -49,7 +49,7 @@ int main(int argc, char **argv)
         return 1;
     }
 
-    if (!(filter_ctx = avfilter_open(filter, NULL))) {
+    if (avfilter_open(&filter_ctx, filter, NULL) < 0) {
         fprintf(stderr, "Inpossible to open filter with name '%s'\n", filter_name);
         return 1;
     }