1 /*****************************************************************************
2 * subpicture.c: Subpicture functions
3 *****************************************************************************
4 * Copyright (C) 2010 Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
7 * Authors: Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
33 #include <vlc_common.h>
34 #include <vlc_image.h>
35 #include <vlc_subpicture.h>
36 #include "subpicture.h"
38 struct subpicture_private_t
44 subpicture_t
*subpicture_New( const subpicture_updater_t
*p_upd
)
46 subpicture_t
*p_subpic
= calloc( 1, sizeof(*p_subpic
) );
50 p_subpic
->i_order
= 0;
51 p_subpic
->b_absolute
= true;
52 p_subpic
->b_fade
= false;
53 p_subpic
->b_subtitle
= false;
54 p_subpic
->i_alpha
= 0xFF;
55 p_subpic
->p_region
= NULL
;
59 subpicture_private_t
*p_private
= malloc( sizeof(*p_private
) );
65 video_format_Init( &p_private
->src
, 0 );
66 video_format_Init( &p_private
->dst
, 0 );
68 p_subpic
->updater
= *p_upd
;
69 p_subpic
->p_private
= p_private
;
73 p_subpic
->p_private
= NULL
;
75 p_subpic
->updater
.pf_validate
= NULL
;
76 p_subpic
->updater
.pf_update
= NULL
;
77 p_subpic
->updater
.pf_destroy
= NULL
;
78 p_subpic
->updater
.p_sys
= NULL
;
83 void subpicture_Delete( subpicture_t
*p_subpic
)
85 subpicture_region_ChainDelete( p_subpic
->p_region
);
86 p_subpic
->p_region
= NULL
;
88 if( p_subpic
->updater
.pf_destroy
)
89 p_subpic
->updater
.pf_destroy( p_subpic
);
91 free( p_subpic
->p_private
);
95 subpicture_t
*subpicture_NewFromPicture( vlc_object_t
*p_obj
,
96 picture_t
*p_picture
, vlc_fourcc_t i_chroma
)
99 video_format_t fmt_in
= p_picture
->format
;
102 video_format_t fmt_out
;
104 fmt_out
.i_chroma
= i_chroma
;
107 image_handler_t
*p_image
= image_HandlerCreate( p_obj
);
111 picture_t
*p_pip
= image_Convert( p_image
, p_picture
, &fmt_in
, &fmt_out
);
113 image_HandlerDelete( p_image
);
118 subpicture_t
*p_subpic
= subpicture_New( NULL
);
121 picture_Release( p_pip
);
125 p_subpic
->i_original_picture_width
= fmt_out
.i_width
;
126 p_subpic
->i_original_picture_height
= fmt_out
.i_height
;
129 fmt_out
.i_sar_den
= 0;
131 p_subpic
->p_region
= subpicture_region_New( &fmt_out
);
132 if( p_subpic
->p_region
)
134 picture_Release( p_subpic
->p_region
->p_picture
);
135 p_subpic
->p_region
->p_picture
= p_pip
;
139 picture_Release( p_pip
);
144 void subpicture_Update( subpicture_t
*p_subpicture
,
145 const video_format_t
*p_fmt_src
,
146 const video_format_t
*p_fmt_dst
,
149 subpicture_updater_t
*p_upd
= &p_subpicture
->updater
;
150 subpicture_private_t
*p_private
= p_subpicture
->p_private
;
152 if( !p_upd
->pf_validate
)
154 if( !p_upd
->pf_validate( p_subpicture
,
155 !video_format_IsSimilar( p_fmt_src
,
156 &p_private
->src
), p_fmt_src
,
157 !video_format_IsSimilar( p_fmt_dst
,
158 &p_private
->dst
), p_fmt_dst
,
162 subpicture_region_ChainDelete( p_subpicture
->p_region
);
163 p_subpicture
->p_region
= NULL
;
165 p_upd
->pf_update( p_subpicture
, p_fmt_src
, p_fmt_dst
, i_ts
);
167 video_format_Clean( &p_private
->src
);
168 video_format_Clean( &p_private
->dst
);
170 video_format_Copy( &p_private
->src
, p_fmt_src
);
171 video_format_Copy( &p_private
->dst
, p_fmt_dst
);
175 subpicture_region_private_t
*subpicture_region_private_New( video_format_t
*p_fmt
)
177 subpicture_region_private_t
*p_private
= malloc( sizeof(*p_private
) );
182 p_private
->fmt
= *p_fmt
;
183 if( p_fmt
->p_palette
)
185 p_private
->fmt
.p_palette
= malloc( sizeof(*p_private
->fmt
.p_palette
) );
186 if( p_private
->fmt
.p_palette
)
187 *p_private
->fmt
.p_palette
= *p_fmt
->p_palette
;
189 p_private
->p_picture
= NULL
;
194 void subpicture_region_private_Delete( subpicture_region_private_t
*p_private
)
196 if( p_private
->p_picture
)
197 picture_Release( p_private
->p_picture
);
198 free( p_private
->fmt
.p_palette
);
202 subpicture_region_t
*subpicture_region_New( const video_format_t
*p_fmt
)
204 subpicture_region_t
*p_region
= calloc( 1, sizeof(*p_region
) );
208 p_region
->fmt
= *p_fmt
;
209 p_region
->fmt
.p_palette
= NULL
;
210 if( p_fmt
->i_chroma
== VLC_CODEC_YUVP
)
212 p_region
->fmt
.p_palette
= calloc( 1, sizeof(*p_region
->fmt
.p_palette
) );
213 if( p_fmt
->p_palette
)
214 *p_region
->fmt
.p_palette
= *p_fmt
->p_palette
;
216 p_region
->i_alpha
= 0xff;
217 p_region
->p_next
= NULL
;
218 p_region
->p_private
= NULL
;
219 p_region
->psz_text
= NULL
;
220 p_region
->p_style
= NULL
;
221 p_region
->p_picture
= NULL
;
223 if( p_fmt
->i_chroma
== VLC_CODEC_TEXT
)
226 p_region
->p_picture
= picture_NewFromFormat( p_fmt
);
227 if( !p_region
->p_picture
)
229 free( p_region
->fmt
.p_palette
);
237 void subpicture_region_Delete( subpicture_region_t
*p_region
)
242 if( p_region
->p_private
)
243 subpicture_region_private_Delete( p_region
->p_private
);
245 if( p_region
->p_picture
)
246 picture_Release( p_region
->p_picture
);
248 free( p_region
->fmt
.p_palette
);
250 free( p_region
->psz_text
);
251 free( p_region
->psz_html
);
252 if( p_region
->p_style
)
253 text_style_Delete( p_region
->p_style
);
257 void subpicture_region_ChainDelete( subpicture_region_t
*p_head
)
261 subpicture_region_t
*p_next
= p_head
->p_next
;
263 subpicture_region_Delete( p_head
);