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/*
* Copyright (C) 2000-2003 the xine project
*
* Copyright (C) Christian Vogler
* cvogler@gradient.cis.upenn.edu - December 2001
*
* This file is part of xine, a free video player.
*
* xine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* xine 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
* $Id: cc_decoder.h,v 1.7 2004/05/05 17:36:48 mroi Exp $
*
* stuff needed to provide closed captioning decoding and display
*
* Some small bits and pieces of the EIA-608 captioning decoder were
* adapted from CCDecoder 0.9.1 by Mike Baker. The latest version is
* available at http://sourceforge.net/projects/ccdecoder/.
*/
typedef struct cc_decoder_s cc_decoder_t;
typedef struct cc_renderer_s cc_renderer_t;
#define NUM_CC_PALETTES 2
extern char *cc_schemes[NUM_CC_PALETTES + 1];
#define CC_FONT_MAX 256
typedef struct cc_config_s {
int cc_enabled; /* true if closed captions are enabled */
char font[CC_FONT_MAX]; /* standard captioning font & size */
int font_size;
char italic_font[CC_FONT_MAX]; /* italic captioning font & size */
int center; /* true if captions should be centered */
/* according to text width */
int cc_scheme; /* which captioning scheme to use */
int config_version; /* the decoder should be updated when this is increased */
} cc_config_t;
typedef struct spucc_class_s {
spu_decoder_class_t spu_class;
cc_config_t cc_cfg;
} spucc_class_t;
typedef struct cc_state_s {
cc_config_t *cc_cfg;
/* the following variables are not controlled by configuration files; they */
/* are intrinsic to the properties of the configuration options and the */
/* currently played video */
int can_cc; /* true if captions can be displayed */
/* (e.g., font fits on screen) */
cc_renderer_t *renderer; /* closed captioning renderer */
} cc_state_t;
cc_decoder_t *cc_decoder_open(cc_state_t *cc_state);
void cc_decoder_close(cc_decoder_t *this_obj);
void cc_decoder_init(void);
void decode_cc(cc_decoder_t *this, uint8_t *buffer, uint32_t buf_len,
int64_t pts);
/* Instantiates a new closed captioning renderer. */
cc_renderer_t *cc_renderer_open(osd_renderer_t *osd_renderer,
metronom_t *metronom, cc_state_t *cc_state,
int video_width, int video_height);
/* Destroys a closed captioning renderer. */
void cc_renderer_close(cc_renderer_t *this_obj);
/* Updates the renderer configuration variables */
void cc_renderer_update_cfg(cc_renderer_t *this_obj, int video_width,
int video_height);
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