ttml: Add plugin that supports TTML subtitles

Add a parser (ttmlparse) and renderer (ttmlrender) element that handle
subtitles that use the EBU-TT-D profile of TTML1.

https://bugzilla.gnome.org/show_bug.cgi?id=758232

1 files changed, 66 insertions, 0 deletions

diff --git a/ext/ttml/subtitlemeta.h b/ext/ttml/subtitlemeta.h
new file mode 100644
index 000000000..e533451ea
--- /dev/null
+++ b/ext/ttml/subtitlemeta.h
@@ -0,0 +1,66 @@
+/* GStreamer
+ * Copyright (C) <2015> British Broadcasting Corporation
+ *   Author: Chris Bass <dash@rd.bbc.co.uk>
+ *
+ * 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., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef __GST_SUBTITLE_META_H__
+#define __GST_SUBTITLE_META_H__
+
+#include <gst/gst.h>
+#include "subtitle.h"
+
+G_BEGIN_DECLS
+
+typedef struct _GstSubtitleMeta GstSubtitleMeta;
+
+/**
+ * GstSubtitleMeta:
+ * @meta: The parent #GstMeta.
+ * @regions: The #GstSubtitleRegions containing layout and styling information
+ * needed to render the subtitle text contained in the associated #GstBuffer.
+ *
+ * Metadata type that describes the layout and styling of subtitle text
+ * contained in a #GstBuffer.
+ */
+struct _GstSubtitleMeta {
+  GstMeta meta;
+
+  GPtrArray *regions;
+};
+
+GType gst_subtitle_meta_api_get_type (void);
+#define GST_SUBTITLE_META_API_TYPE (gst_subtitle_meta_api_get_type())
+
+#define gst_buffer_get_subtitle_meta(b) \
+    ((GstSubtitleMeta*)gst_buffer_get_meta ((b), GST_SUBTITLE_META_API_TYPE))
+
+#define GST_SUBTITLE_META_INFO (gst_subtitle_meta_get_info())
+
+gboolean gst_subtitle_meta_init (GstMeta * meta, gpointer params,
+    GstBuffer * buffer);
+
+void gst_subtitle_meta_free (GstMeta * meta, GstBuffer * buffer);
+
+const GstMetaInfo * gst_subtitle_meta_get_info (void);
+
+GstSubtitleMeta * gst_buffer_add_subtitle_meta (GstBuffer * buffer,
+    GPtrArray * regions);
+
+G_END_DECLS
+
+#endif /* __GST_SUBTITLE_META_H__ */