lavfi: add const to the AVFilter parameter of avfilter_graph_create_filter()

[ffmpeg] / libavfilter / vf_copy.c

diff --git a/libavfilter/vf_copy.c b/libavfilter/vf_copy.c
index 8ece5cf8c57d51499445ec3654db497d6d40d814..f53395932baafedaf249ca52f6dd52333c80fbb3 100644 (file)
--- a/libavfilter/vf_copy.c
+++ b/libavfilter/vf_copy.c
@@ -21,17 +21,35 @@
  * copy video filter
  */
 
+#include "libavutil/imgutils.h"
 #include "libavutil/internal.h"
 #include "avfilter.h"
 #include "internal.h"
 #include "video.h"
 
+static int filter_frame(AVFilterLink *inlink, AVFrame *in)
+{
+    AVFilterLink *outlink = inlink->dst->outputs[0];
+    AVFrame *out = ff_get_video_buffer(outlink, in->width, in->height);
+
+    if (!out) {
+        av_frame_free(&in);
+        return AVERROR(ENOMEM);
+    }
+    av_frame_copy_props(out, in);
+    av_image_copy(out->data, out->linesize, in->data, in->linesize,
+                  in->format, in->width, in->height);
+
+    av_frame_free(&in);
+    return ff_filter_frame(outlink, out);
+}
+
 static const AVFilterPad avfilter_vf_copy_inputs[] = {
     {
         .name             = "default",
         .type             = AVMEDIA_TYPE_VIDEO,
         .get_video_buffer = ff_null_get_video_buffer,
-        .rej_perms        = ~0
+        .filter_frame     = filter_frame,
     },
     { NULL }
 };