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 480ebcc034f3fe8c650302a411ad5d7a35e32194..f53395932baafedaf249ca52f6dd52333c80fbb3 100644 (file)
--- a/libavfilter/vf_copy.c
+++ b/libavfilter/vf_copy.c
@@ -1,18 +1,18 @@
 /*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
  *
- * FFmpeg is free software; you can redistribute it and/or
+ * Libav is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * FFmpeg is distributed in the hope that it will be useful,
+ * Libav is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with FFmpeg; if not, write to the Free Software
+ * License along with Libav; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -21,20 +21,51 @@
  * 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,
+        .filter_frame     = filter_frame,
+    },
+    { NULL }
+};
+
+static const AVFilterPad avfilter_vf_copy_outputs[] = {
+    {
+        .name = "default",
+        .type = AVMEDIA_TYPE_VIDEO,
+    },
+    { NULL }
+};
 
 AVFilter avfilter_vf_copy = {
     .name      = "copy",
     .description = NULL_IF_CONFIG_SMALL("Copy the input video unchanged to the output."),
 
-    .inputs    = (AVFilterPad[]) {{ .name             = "default",
-                                    .type             = AVMEDIA_TYPE_VIDEO,
-                                    .get_video_buffer = avfilter_null_get_video_buffer,
-                                    .start_frame      = avfilter_null_start_frame,
-                                    .end_frame        = avfilter_null_end_frame,
-                                    .rej_perms        = ~0 },
-                                  { .name = NULL}},
-    .outputs   = (AVFilterPad[]) {{ .name             = "default",
-                                    .type             = AVMEDIA_TYPE_VIDEO, },
-                                  { .name = NULL}},
+    .inputs    = avfilter_vf_copy_inputs,
+    .outputs   = avfilter_vf_copy_outputs,
 };