[FFmpeg-cvslog] examples/filtering_video: suppress the build warning.

[Jun Zhao]

ffmpeg | branch: master | Jun Zhao <jun.zhao at intel.com> | Tue Oct 31 16:11:06 2017 +0800| [cb6e20f8de12cf6401ae2dd5f9eea9587ddfe1eb] | committer: Michael Niedermayer

examples/filtering_video: suppress the build warning.

suppress the "warning: assignment discards ‘const’ qualifier from
pointer target type" build warning.

Signed-off-by: Jun Zhao <jun.zhao at intel.com>
Reviewed-by: Steven Liu <lingjiujianke at gmail.com>
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=cb6e20f8de12cf6401ae2dd5f9eea9587ddfe1eb
---

 doc/examples/filtering_video.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/examples/filtering_video.c b/doc/examples/filtering_video.c
index fedb2e1c99..9b607ba016 100644
--- a/doc/examples/filtering_video.c
+++ b/doc/examples/filtering_video.c
@@ -92,8 +92,8 @@ static int init_filters(const char *filters_descr)
 {
     char args[512];
     int ret = 0;
-    AVFilter *buffersrc  = avfilter_get_by_name("buffer");
-    AVFilter *buffersink = avfilter_get_by_name("buffersink");
+    const AVFilter *buffersrc  = avfilter_get_by_name("buffer");
+    const AVFilter *buffersink = avfilter_get_by_name("buffersink");
     AVFilterInOut *outputs = avfilter_inout_alloc();
     AVFilterInOut *inputs  = avfilter_inout_alloc();
     AVRational time_base = fmt_ctx->streams[video_stream_index]->time_base;