3 * Copyright (c) 2007 Aurelien Jacobs <aurel@gnuage.org>
5 * This file is part of FFmpeg.
7 * FFmpeg 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 * FFmpeg 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 FFmpeg; 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 "mpeg12vlc.h"
26 #include "mpegvideo.h"
28 extern uint8_t ff_mpeg12_static_rl_table_store[2][2][2*MAX_RUN + MAX_LEVEL + 3];
30 void ff_mpeg12_common_init(MpegEncContext *s);
32 static inline int decode_dc(GetBitContext *gb, int component)
37 code = get_vlc2(gb, ff_dc_lum_vlc.table, DC_VLC_BITS, 2);
39 code = get_vlc2(gb, ff_dc_chroma_vlc.table, DC_VLC_BITS, 2);
42 av_log(NULL, AV_LOG_ERROR, "invalid dc code at\n");
48 diff = get_xbits(gb, code);
53 int ff_mpeg1_decode_block_intra(MpegEncContext *s, int16_t *block, int n);
54 void ff_mpeg1_clean_buffers(MpegEncContext *s);
55 int ff_mpeg1_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size, AVCodecParserContext *s);
57 void ff_mpeg1_encode_picture_header(MpegEncContext *s, int picture_number);
58 void ff_mpeg1_encode_mb(MpegEncContext *s, int16_t block[8][64],
59 int motion_x, int motion_y);
60 void ff_mpeg1_encode_init(MpegEncContext *s);
61 void ff_mpeg1_encode_slice_header(MpegEncContext *s);
63 #endif /* AVCODEC_MPEG12_H */