mirror of
https://code.videolan.org/videolan/vlc
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76 lines
2.9 KiB
C
76 lines
2.9 KiB
C
/*****************************************************************************
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* vobsub.h: Vobsub support
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*****************************************************************************
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* Copyright (C) 2009 the VideoLAN team
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* $Id$
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*
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* Authors: John Stebbins
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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static inline void vobsub_palette_rgb2yuv( uint32_t *pu_palette )
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{
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int i;
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for( i = 0; i < 16; i++ )
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{
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uint8_t r, g, b, y, u, v;
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r = (pu_palette[i] >> 16) & 0xff;
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g = (pu_palette[i] >> 8) & 0xff;
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b = (pu_palette[i] >> 0) & 0xff;
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y = (uint8_t) __MIN(abs(r * 2104 + g * 4130 + b * 802 + 4096 + 131072) >> 13, 235);
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u = (uint8_t) __MIN(abs(r * -1214 + g * -2384 + b * 3598 + 4096 + 1048576) >> 13, 240);
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v = (uint8_t) __MIN(abs(r * 3598 + g * -3013 + b * -585 + 4096 + 1048576) >> 13, 240);
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pu_palette[i] = (y&0xff)<<16 | (v&0xff)<<8 | (u&0xff);
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}
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}
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static inline int vobsub_palette_parse( const char *psz_buf, uint32_t *pu_palette )
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{
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if( sscanf( psz_buf, "palette: "
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"%"PRIx32", %"PRIx32", %"PRIx32", %"PRIx32", "
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"%"PRIx32", %"PRIx32", %"PRIx32", %"PRIx32", "
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"%"PRIx32", %"PRIx32", %"PRIx32", %"PRIx32", "
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"%"PRIx32", %"PRIx32", %"PRIx32", %"PRIx32"",
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&pu_palette[0], &pu_palette[1], &pu_palette[2], &pu_palette[3],
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&pu_palette[4], &pu_palette[5], &pu_palette[6], &pu_palette[7],
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&pu_palette[8], &pu_palette[9], &pu_palette[10], &pu_palette[11],
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&pu_palette[12], &pu_palette[13], &pu_palette[14], &pu_palette[15] ) == 16 )
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{
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vobsub_palette_rgb2yuv( pu_palette );
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return VLC_SUCCESS;
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}
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else
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{
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return VLC_EGENERIC;
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}
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}
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static inline int vobsub_size_parse( const char *psz_buf,
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int *pi_original_frame_width,
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int *pi_original_frame_height )
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{
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if( sscanf( psz_buf, "size: %dx%d",
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pi_original_frame_width, pi_original_frame_height ) == 2 )
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{
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return VLC_SUCCESS;
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}
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else
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{
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return VLC_EGENERIC;
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}
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}
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