[FFmpeg-cvslog] avfiltergraph: kill uninitialized variable warning

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Thu Aug 30 11:02:15 2012 +0200| [d40e2c7a86171e67e6bf112dbd65c6e736d5eda8] | committer: Michael Niedermayer

avfiltergraph: kill uninitialized variable warning

Signed-off-by: Michael Niedermayer <michaelni at gmx.at>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d40e2c7a86171e67e6bf112dbd65c6e736d5eda8
---

 libavfilter/avfiltergraph.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c
index 8a5f106..7ab1124 100644
--- a/libavfilter/avfiltergraph.c
+++ b/libavfilter/avfiltergraph.c
@@ -630,7 +630,7 @@ static void swap_channel_layouts_on_filter(AVFilterContext *filter)
 
     for (i = 0; i < filter->nb_outputs; i++) {
         AVFilterLink *outlink = filter->outputs[i];
-        int best_idx, best_score = INT_MIN, best_count_diff = INT_MAX;
+        int best_idx = -1, best_score = INT_MIN, best_count_diff = INT_MAX;
 
         if (outlink->type != AVMEDIA_TYPE_AUDIO ||
             outlink->in_channel_layouts->nb_channel_layouts < 2)
@@ -679,6 +679,7 @@ static void swap_channel_layouts_on_filter(AVFilterContext *filter)
                 best_count_diff = count_diff;
             }
         }
+        av_assert1(best_idx>=0);
         FFSWAP(uint64_t, outlink->in_channel_layouts->channel_layouts[0],
                outlink->in_channel_layouts->channel_layouts[best_idx]);
     }