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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.
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/* GStreamer DVD Sub-Picture Unit
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* Copyright (C) 2007 Fluendo S.A. <info@fluendo.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GSTSPU_COMMON_H__
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#define __GSTSPU_COMMON_H__
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#include <glib.h>
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G_BEGIN_DECLS
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/* FIXME: Move this back to gstdvdspu.h when the renderers no longer use it: */
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typedef struct _GstDVDSpu GstDVDSpu;
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typedef struct SpuState SpuState;
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typedef struct SpuColour SpuColour;
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typedef struct SpuRect SpuRect;
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/* Describe the limits of a rectangle */
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struct SpuRect {
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gint16 left;
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gint16 top;
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gint16 right;
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gint16 bottom;
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};
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/* Store a pre-multiplied colour value. The YUV fields hold the YUV values
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* multiplied by the 8-bit alpha, to save computing it while rendering */
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struct SpuColour {
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guint16 Y;
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guint16 U;
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guint16 V;
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guint8 A;
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};
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void gstspu_clear_comp_buffers (SpuState * state);
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void gstspu_blend_comp_buffers (SpuState * state, guint8 * planes[3]);
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G_END_DECLS
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#endif /* __GSTSPU_COMMON_H__ */
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