107 lines
2.9 KiB
C
107 lines
2.9 KiB
C
/* GStreamer Sub-Picture Unit - PGS handling
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* Copyright (C) 2009 Jan Schmidt <thaytan@noraisin.net>
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GSTSPU_PGS_H__
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#define __GSTSPU_PGS_H__
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#include "gstspu-common.h"
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typedef struct SpuPgsState SpuPgsState;
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typedef enum PgsCompositionObjectFlags PgsCompositionObjectFlags;
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typedef enum PgsPresentationSegmentFlags PgsPresentationSegmentFlags;
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typedef enum PgsObjectUpdateFlags PgsObjectUpdateFlags;
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typedef struct PgsPresentationSegment PgsPresentationSegment;
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typedef struct PgsCompositionObject PgsCompositionObject;
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enum PgsPresentationSegmentFlags
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{
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PGS_PRES_SEGMENT_FLAG_UPDATE_PALETTE = 0x80
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};
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enum PgsCompositionObjectFlags
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{
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PGS_COMPOSITION_OBJECT_FLAG_CROPPED = 0x80,
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PGS_COMPOSITION_OBJECT_FLAG_FORCED = 0x40
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};
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enum PgsObjectUpdateFlags
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{
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/* Set in an object_update if this is the beginning of new RLE data.
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* If not set, the data is a continuation to be appended */
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PGS_OBJECT_UPDATE_FLAG_START_RLE = 0x80,
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PGS_OBJECT_UPDATE_FLAG_END_RLE = 0x40 /* This one is a guess */
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};
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struct PgsPresentationSegment
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{
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guint16 composition_no;
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guint8 composition_state;
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PgsPresentationSegmentFlags flags;
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guint8 palette_id;
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guint16 vid_w, vid_h;
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guint8 vid_fps_code;
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GArray *objects;
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};
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struct PgsCompositionObject
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{
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guint16 id;
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guint8 version;
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PgsCompositionObjectFlags flags;
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guint8 win_id;
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guint8 rle_data_ver;
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guint8 *rle_data;
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guint32 rle_data_size;
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guint32 rle_data_used;
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/* Top left corner of this object */
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guint16 x, y;
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/* Only valid if PGS_COMPOSITION_OBJECT_FLAG_CROPPED is set */
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guint16 crop_x, crop_y, crop_w, crop_h;
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};
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struct SpuPgsState {
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GstBuffer *pending_cmd;
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gboolean in_presentation_segment;
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gboolean have_presentation_segment;
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PgsPresentationSegment pres_seg;
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SpuColour palette[256];
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guint16 win_x, win_y, win_w, win_h;
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};
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void gstspu_pgs_handle_new_buf (GstDVDSpu * dvdspu, GstClockTime event_ts, GstBuffer *buf);
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gboolean gstspu_pgs_execute_event (GstDVDSpu *dvdspu);
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void gstspu_pgs_render (GstDVDSpu *dvdspu, GstVideoFrame *frame);
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gboolean gstspu_pgs_handle_dvd_event (GstDVDSpu *dvdspu, GstEvent *event);
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void gstspu_pgs_flush (GstDVDSpu *dvdspu);
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#endif
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