Add aspectratiocrop element. Fixes bug #527951

Add new aspectratiocrop element that crops the video
to a specified aspect ratio using videocrop.

1 files changed, 67 insertions, 0 deletions

diff --git a/gst/videocrop/gstaspectratiocrop.h b/gst/videocrop/gstaspectratiocrop.h
new file mode 100644
index 00000000..dc2e7cdc
--- /dev/null
+++ b/gst/videocrop/gstaspectratiocrop.h
@@ -0,0 +1,67 @@
+/* GStreamer video frame cropping to aspect-ratio
+ * Copyright (C) 2009 Thijs Vermeir <thijsvermeir@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef __GST_ASPECT_RATIO_CROP_H__
+#define __GST_ASPECT_RATIO_CROP_H__
+
+#include <gst/gstbin.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_ASPECT_RATIO_CROP \
+  (gst_aspect_ratio_crop_get_type())
+#define GST_ASPECT_RATIO_CROP(obj) \
+  (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_ASPECT_RATIO_CROP,GstAspectRatioCrop))
+#define GST_ASPECT_RATIO_CROP_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_ASPECT_RATIO_CROP,GstAspectRatioCropClass))
+#define GST_IS_ASPECT_RATIO_CROP(obj) \
+  (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_ASPECT_RATIO_CROP))
+#define GST_IS_ASPECT_RATIO_CROP_CLASS(klass) \
+  (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_ASPECT_RATIO_CROP))
+
+typedef struct _GstAspectRatioCrop GstAspectRatioCrop;
+typedef struct _GstAspectRatioCropClass GstAspectRatioCropClass;
+
+struct _GstAspectRatioCrop
+{
+  GstBin parent;
+
+  /* our videocrop element */
+  GstElement *videocrop;
+
+  GstPad *sink;
+
+  /* target aspect ratio */
+  gint ar_num; /* if < 1 then don't change ar */
+  gint ar_denom;
+
+  GMutex *crop_lock;
+};
+
+struct _GstAspectRatioCropClass
+{
+  GstBinClass parent_class;
+};
+
+GType gst_aspect_ratio_crop_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GST_ASPECT_RATIO_CROP_H__ */
+