1 /*****************************************************************************
2 * vobsub.h: Vobsub support
3 *****************************************************************************
4 * Copyright (C) 2009 VLC authors and VideoLAN
6 * Authors: John Stebbins
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU Lesser General Public License as published by
10 * the Free Software Foundation; either version 2.1 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public License
19 * along with this program; if not, write to the Free Software Foundation,
20 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
21 *****************************************************************************/
23 static inline void vobsub_palette_argb2ayvu( const uint32_t *src
, uint32_t *dst
)
26 for( i
= 0; i
< 16; i
++ )
28 uint8_t r
, g
, b
, y
, u
, v
;
29 r
= (src
[i
] >> 16) & 0xff;
30 g
= (src
[i
] >> 8) & 0xff;
31 b
= (src
[i
] >> 0) & 0xff;
32 y
= (uint8_t) __MIN(abs(r
* 2104 + g
* 4130 + b
* 802 + 4096 + 131072) >> 13, 235);
33 u
= (uint8_t) __MIN(abs(r
* -1214 + g
* -2384 + b
* 3598 + 4096 + 1048576) >> 13, 240);
34 v
= (uint8_t) __MIN(abs(r
* 3598 + g
* -3013 + b
* -585 + 4096 + 1048576) >> 13, 240);
35 dst
[i
] = (y
&0xff)<<16 | (v
&0xff)<<8 | (u
&0xff);
39 static inline int vobsub_palette_parse( const char *psz_buf
, uint32_t *pu_palette
)
42 if( sscanf( psz_buf
, "palette: "
43 "%" SCNx32
", %" SCNx32
", %" SCNx32
", %" SCNx32
", "
44 "%" SCNx32
", %" SCNx32
", %" SCNx32
", %" SCNx32
", "
45 "%" SCNx32
", %" SCNx32
", %" SCNx32
", %" SCNx32
", "
46 "%" SCNx32
", %" SCNx32
", %" SCNx32
", %" SCNx32
"",
47 &palette
[0], &palette
[1], &palette
[2], &palette
[3],
48 &palette
[4], &palette
[5], &palette
[6], &palette
[7],
49 &palette
[8], &palette
[9], &palette
[10], &palette
[11],
50 &palette
[12], &palette
[13], &palette
[14], &palette
[15] ) == 16 )
52 vobsub_palette_argb2ayvu( palette
, pu_palette
);
61 static inline int vobsub_size_parse( const char *psz_buf
,
62 int *pi_original_frame_width
,
63 int *pi_original_frame_height
)
66 if( sscanf( psz_buf
, "size: %dx%d", &w
, &h
) == 2 )
68 *pi_original_frame_width
= w
;
69 *pi_original_frame_height
= h
;