[gegl] gegl-binary: add simple video filtering

[Øyvind Kolås <ok src gnome org>]

commit ebe30d5ce0079967b9f34edb50758c4e8da5660f
Author: Øyvind Kolås <pippin gimp org>
Date:   Fri Mar 25 00:19:13 2016 +0100

    gegl-binary: add simple video filtering

 bin/gegl.c |  106 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 bin/ui.c   |   36 ++------------------
 2 files changed, 110 insertions(+), 32 deletions(-)
---
diff --git a/bin/gegl.c b/bin/gegl.c
index 9638385..e8b4f40 100644
--- a/bin/gegl.c
+++ b/bin/gegl.c
@@ -58,6 +58,9 @@ gegl_enable_fatal_warnings (void)
   g_log_set_always_fatal (fatal_mask);
 }
 
+int gegl_str_has_image_suffix (char *path);
+int gegl_str_has_video_suffix (char *path);
+
 static gboolean file_is_gegl_xml (const gchar *path)
 {
   gchar *extension;
@@ -154,6 +157,12 @@ main (gint    argc,
         {
           gchar *file_basename = g_path_get_basename (o->file);
 
+          if (gegl_str_has_video_suffix (file_basename))
+            script = g_strconcat ("<gegl><gegl:ff-load path='",
+                                  file_basename,
+                                  "'/></gegl>",
+                                  NULL);
+          else
           script = g_strconcat ("<gegl><gegl:load path='",
                                 file_basename,
                                 "'/></gegl>",
@@ -224,6 +233,64 @@ main (gint    argc,
         break;
 
       case GEGL_RUN_MODE_OUTPUT:
+      if (gegl_str_has_video_suffix ((void*)o->output))
+        {
+          GeglNode *output = gegl_node_new_child (gegl,
+                                                  "operation", "gegl:ff-save",
+                                                  "path", o->output,
+                                                  "video-bit-rate", 4000,
+                                                  NULL);
+          {
+            GeglRectangle bounds = gegl_node_get_bounding_box (gegl);
+            GeglBuffer *tempb;
+            GeglNode *n0;
+            GeglNode *iter;
+            int frame_no = 0;
+            guchar *temp;
+            
+            bounds.x *= o->scale;
+            bounds.y *= o->scale;
+            bounds.width *= o->scale;
+            bounds.height *= o->scale;
+            temp = gegl_malloc (bounds.width * bounds.height * 4);
+            tempb = gegl_buffer_new (&bounds, babl_format("R'G'B'A u8"));
+
+            n0 = gegl_node_new_child (gegl, "operation", "gegl:buffer-source",
+                                            "buffer", tempb,
+                                            NULL);
+            gegl_node_connect_from (output, "input", n0, "output");
+  
+            iter = gegl_node_get_output_proxy (gegl, "output");
+
+            while (gegl_node_get_producer (iter, "input", NULL))
+              iter = (gegl_node_get_producer (iter, "input", NULL));
+            {
+              int duration = 0;
+              gegl_node_get (iter, "frames", &duration, NULL);
+
+              while (frame_no < duration)
+              {
+
+            gegl_node_blit (gegl, o->scale, &bounds, babl_format("R'G'B'A u8"), temp, GEGL_AUTO_ROWSTRIDE,
+                            GEGL_BLIT_DEFAULT);
+
+            gegl_buffer_set (tempb, &bounds, 0.0, babl_format ("R'G'B'A u8"),
+                             temp, GEGL_AUTO_ROWSTRIDE);
+
+                gegl_node_set (iter, "frame", frame_no, NULL);
+                fprintf (stderr, "\r%i/%i", frame_no, duration-1);
+                gegl_node_process (output);
+                frame_no ++;
+              }
+              fprintf (stderr, "\n");
+            }
+            gegl_free (temp);
+            g_object_unref (tempb);
+            g_object_unref (output);
+          }
+
+        }
+      else
         {
           GeglNode *output = gegl_node_new_child (gegl,
                                                   "operation", "gegl:save",
@@ -285,3 +352,42 @@ main (gint    argc,
   return 0;
 }
 
+int gegl_str_has_image_suffix (char *path)
+{
+  return g_str_has_suffix (path, ".jpg") ||
+         g_str_has_suffix (path, ".png") ||
+         g_str_has_suffix (path, ".JPG") ||
+         g_str_has_suffix (path, ".PNG") ||
+         g_str_has_suffix (path, ".tif") ||
+         g_str_has_suffix (path, ".tiff") ||
+         g_str_has_suffix (path, ".TIF") ||
+         g_str_has_suffix (path, ".TIFF") ||
+         g_str_has_suffix (path, ".jpeg") ||
+         g_str_has_suffix (path, ".JPEG") ||
+         g_str_has_suffix (path, ".CR2") ||
+         g_str_has_suffix (path, ".cr2") ||
+         g_str_has_suffix (path, ".exr");
+}
+
+int gegl_str_has_video_suffix (char *path)
+{
+  return g_str_has_suffix (path, ".avi") ||
+         g_str_has_suffix (path, ".AVI") ||
+         g_str_has_suffix (path, ".mp4") ||
+         g_str_has_suffix (path, ".dv") ||
+         g_str_has_suffix (path, ".DV") ||
+         g_str_has_suffix (path, ".mp3") ||
+         g_str_has_suffix (path, ".MP3") ||
+         g_str_has_suffix (path, ".mpg") ||
+         g_str_has_suffix (path, ".ogv") ||
+         g_str_has_suffix (path, ".MPG") ||
+         g_str_has_suffix (path, ".webm") ||
+         g_str_has_suffix (path, ".MP4") ||
+         g_str_has_suffix (path, ".mkv") ||
+         g_str_has_suffix (path, ".gif") ||
+         g_str_has_suffix (path, ".GIF") ||
+         g_str_has_suffix (path, ".MKV") ||
+         g_str_has_suffix (path, ".mov") ||
+         g_str_has_suffix (path, ".ogg");
+}
+
diff --git a/bin/ui.c b/bin/ui.c
index 4d57534..ab492ed 100644
--- a/bin/ui.c
+++ b/bin/ui.c
@@ -250,40 +250,12 @@ char *      gegl_meta_get (const char *path);
 
 static void on_viewer_motion (MrgEvent *e, void *data1, void *data2);
 
-static int str_has_image_suffix (char *path)
-{
-  return g_str_has_suffix (path, ".jpg") ||
-         g_str_has_suffix (path, ".png") ||
-         g_str_has_suffix (path, ".JPG") ||
-         g_str_has_suffix (path, ".PNG") ||
-         g_str_has_suffix (path, ".jpeg") ||
-         g_str_has_suffix (path, ".JPEG") ||
-         g_str_has_suffix (path, ".CR2") ||
-         g_str_has_suffix (path, ".exr");
-}
-
-static int str_has_video_suffix (char *path)
-{
-  return g_str_has_suffix (path, ".avi") ||
-         g_str_has_suffix (path, ".AVI") ||
-         g_str_has_suffix (path, ".mp4") ||
-         g_str_has_suffix (path, ".mp3") ||
-         g_str_has_suffix (path, ".mpg") ||
-         g_str_has_suffix (path, ".ogv") ||
-         g_str_has_suffix (path, ".MPG") ||
-         g_str_has_suffix (path, ".webm") ||
-         g_str_has_suffix (path, ".MP4") ||
-         g_str_has_suffix (path, ".mkv") ||
-         g_str_has_suffix (path, ".gif") ||
-         g_str_has_suffix (path, ".GIF") ||
-         g_str_has_suffix (path, ".MKV") ||
-         g_str_has_suffix (path, ".mov") ||
-         g_str_has_suffix (path, ".ogg");
-}
+int gegl_str_has_image_suffix (char *path);
+int gegl_str_has_video_suffix (char *path);
 
 static int str_has_visual_suffix (char *path)
 {
-  return str_has_image_suffix (path) || str_has_video_suffix (path);
+  return gegl_str_has_image_suffix (path) || gegl_str_has_video_suffix (path);
 }
 
 static void populate_path_list (State *o)
@@ -1287,7 +1259,7 @@ static void load_path (State *o)
   o->frame_no = 0;
   o->prev_frame_played = 0;
 
-  if (str_has_video_suffix (path))
+  if (gegl_str_has_video_suffix (path))
   {
     o->is_video = 1;
     o->gegl = gegl_node_new ();