1 /*****************************************************************************
2 * vobsub.h: Vobsub support
3 *****************************************************************************
4 * Copyright (C) 2009 the VideoLAN team
7 * Authors: John Stebbins
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 static inline void vobsub_palette_rgb2yuv( uint32_t *pu_palette
)
27 for( i
= 0; i
< 16; i
++ )
29 uint8_t r
, g
, b
, y
, u
, v
;
30 r
= (pu_palette
[i
] >> 16) & 0xff;
31 g
= (pu_palette
[i
] >> 8) & 0xff;
32 b
= (pu_palette
[i
] >> 0) & 0xff;
33 y
= (uint8_t) __MIN(abs(r
* 2104 + g
* 4130 + b
* 802 + 4096 + 131072) >> 13, 235);
34 u
= (uint8_t) __MIN(abs(r
* -1214 + g
* -2384 + b
* 3598 + 4096 + 1048576) >> 13, 240);
35 v
= (uint8_t) __MIN(abs(r
* 3598 + g
* -3013 + b
* -585 + 4096 + 1048576) >> 13, 240);
36 pu_palette
[i
] = (y
&0xff)<<16 | (v
&0xff)<<8 | (u
&0xff);
40 static inline int vobsub_palette_parse( const char *psz_buf
, uint32_t *pu_palette
)
42 if( sscanf( psz_buf
, "palette: "
43 "%"PRIx32
", %"PRIx32
", %"PRIx32
", %"PRIx32
", "
44 "%"PRIx32
", %"PRIx32
", %"PRIx32
", %"PRIx32
", "
45 "%"PRIx32
", %"PRIx32
", %"PRIx32
", %"PRIx32
", "
46 "%"PRIx32
", %"PRIx32
", %"PRIx32
", %"PRIx32
"",
47 &pu_palette
[0], &pu_palette
[1], &pu_palette
[2], &pu_palette
[3],
48 &pu_palette
[4], &pu_palette
[5], &pu_palette
[6], &pu_palette
[7],
49 &pu_palette
[8], &pu_palette
[9], &pu_palette
[10], &pu_palette
[11],
50 &pu_palette
[12], &pu_palette
[13], &pu_palette
[14], &pu_palette
[15] ) == 16 )
52 vobsub_palette_rgb2yuv( 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
)
65 if( sscanf( psz_buf
, "size: %dx%d",
66 pi_original_frame_width
, pi_original_frame_height
) == 2 )