3 * Copyright (c) 2007 Aurelien Jacobs <aurel@gnuage.org>
5 * This file is part of Libav.
7 * Libav is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * Libav is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with Libav; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
22 #ifndef AVCODEC_MPEG12_H
23 #define AVCODEC_MPEG12_H
25 #include "mpegvideo.h"
28 #define TEX_VLC_BITS 9
30 extern VLC ff_dc_lum_vlc;
31 extern VLC ff_dc_chroma_vlc;
33 extern uint8_t ff_mpeg12_static_rl_table_store[2][2][2*MAX_RUN + MAX_LEVEL + 3];
35 void ff_mpeg12_common_init(MpegEncContext *s);
36 void ff_mpeg12_init_vlcs(void);
38 static inline int decode_dc(GetBitContext *gb, int component)
43 code = get_vlc2(gb, ff_dc_lum_vlc.table, DC_VLC_BITS, 2);
45 code = get_vlc2(gb, ff_dc_chroma_vlc.table, DC_VLC_BITS, 2);
48 av_log(NULL, AV_LOG_ERROR, "invalid dc code at\n");
54 diff = get_xbits(gb, code);
59 extern int ff_mpeg1_decode_block_intra(MpegEncContext *s, DCTELEM *block, int n);
61 #endif /* AVCODEC_MPEG12_H */