mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-10 11:29:55 +00:00
b68a05dbfa
Refactor the DVD subpicture compositing, switching it to 8-bit alpha calculations. Reuse some of the resulting code to implement PGS subpicture blending. Implement parsing and collecting of composition objects properly, but assuming a single active window and colour palette for now. I need more PGS samples.
56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
/* GStreamer DVD Sub-Picture Unit
|
|
* Copyright (C) 2007 Fluendo S.A. <info@fluendo.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 __GSTSPU_COMMON_H__
|
|
#define __GSTSPU_COMMON_H__
|
|
|
|
#include <glib.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
/* FIXME: Move this back to gstdvdspu.h when the renderers no longer use it: */
|
|
typedef struct _GstDVDSpu GstDVDSpu;
|
|
|
|
typedef struct SpuState SpuState;
|
|
typedef struct SpuColour SpuColour;
|
|
typedef struct SpuRect SpuRect;
|
|
|
|
/* Describe the limits of a rectangle */
|
|
struct SpuRect {
|
|
gint16 left;
|
|
gint16 top;
|
|
gint16 right;
|
|
gint16 bottom;
|
|
};
|
|
|
|
/* Store a pre-multiplied colour value. The YUV fields hold the YUV values
|
|
* multiplied by the 8-bit alpha, to save computing it while rendering */
|
|
struct SpuColour {
|
|
guint16 Y;
|
|
guint16 U;
|
|
guint16 V;
|
|
guint8 A;
|
|
};
|
|
|
|
void gstspu_clear_comp_buffers (SpuState * state);
|
|
void gstspu_blend_comp_buffers (SpuState * state, guint8 * planes[3]);
|
|
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GSTSPU_COMMON_H__ */
|