1 files changed, 106 insertions, 0 deletions
diff --git a/gst/dvdspu/gstspu-pgs.h b/gst/dvdspu/gstspu-pgs.h
new file mode 100644
index 00000000..164f4d81
--- /dev/null
+++ b/gst/dvdspu/gstspu-pgs.h
@@ -0,0 +1,106 @@
+/* GStreamer Sub-Picture Unit - PGS handling
+ * Copyright (C) 2009 Jan Schmidt <thaytan@noraisin.net>
+ *
+ * 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 __GSTSPU_PGS_H__
+#define __GSTSPU_PGS_H__
+
+#include "gstspu-common.h"
+
+typedef struct SpuPgsState SpuPgsState;
+typedef enum PgsCompositionObjectFlags PgsCompositionObjectFlags;
+typedef enum PgsPresentationSegmentFlags PgsPresentationSegmentFlags;
+typedef enum PgsObjectUpdateFlags PgsObjectUpdateFlags;
+
+typedef struct PgsPresentationSegment PgsPresentationSegment;
+typedef struct PgsCompositionObject PgsCompositionObject;
+
+enum PgsPresentationSegmentFlags
+{
+  PGS_PRES_SEGMENT_FLAG_UPDATE_PALETTE = 0x80
+};
+
+enum PgsCompositionObjectFlags
+{
+  PGS_COMPOSITION_OBJECT_FLAG_CROPPED = 0x80,
+  PGS_COMPOSITION_OBJECT_FLAG_FORCED = 0x40
+};
+
+enum PgsObjectUpdateFlags
+{
+  /* Set in an object_update if this is the beginning of new RLE data.
+   * If not set, the data is a continuation to be appended */
+  PGS_OBJECT_UPDATE_FLAG_START_RLE = 0x80,
+  PGS_OBJECT_UPDATE_FLAG_END_RLE = 0x40 /* This one is a guess */
+};
+
+struct PgsPresentationSegment
+{
+  guint16 composition_no;
+  guint8 composition_state;
+
+  PgsPresentationSegmentFlags flags;
+
+  guint8 palette_id;
+
+  guint16 vid_w, vid_h;
+  guint8  vid_fps_code;
+
+  GArray *objects;
+};
+
+struct PgsCompositionObject
+{
+  guint16 id;
+  guint8 version;
+  PgsCompositionObjectFlags flags;
+
+  guint8 win_id;
+
+  guint8 rle_data_ver;
+  guint8 *rle_data;
+  guint32 rle_data_size;
+  guint32 rle_data_used;
+
+  /* Top left corner of this object */
+  guint16 x, y;
+
+  /* Only valid if PGS_COMPOSITION_OBJECT_FLAG_CROPPED is set */
+  guint16 crop_x, crop_y, crop_w, crop_h;
+};
+
+struct SpuPgsState {
+  GstBuffer *pending_cmd;
+
+  gboolean in_presentation_segment;
+  gboolean have_presentation_segment;
+
+  PgsPresentationSegment pres_seg;
+
+  SpuColour palette[256];
+
+  guint16 win_x, win_y, win_w, win_h;
+};
+
+void gstspu_pgs_handle_new_buf (GstDVDSpu * dvdspu, GstClockTime event_ts, GstBuffer *buf);
+gboolean gstspu_pgs_execute_event (GstDVDSpu *dvdspu);
+void gstspu_pgs_render (GstDVDSpu *dvdspu, GstBuffer *buf);
+gboolean gstspu_pgs_handle_dvd_event (GstDVDSpu *dvdspu, GstEvent *event);
+void gstspu_pgs_flush (GstDVDSpu *dvdspu);
+
+#endif