2 * AVCodecParser prototypes and definitions
3 * Copyright (c) 2003 Fabrice Bellard.
4 * Copyright (c) 2003 Michael Niedermayer.
6 * This file is part of FFmpeg.
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * FFmpeg 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 GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 #ifndef FFMPEG_PARSER_H
24 #define FFMPEG_PARSER_H
26 typedef struct ParseContext{
30 unsigned int buffer_size;
31 uint32_t state; ///< contains the last few bytes in MSB order
32 int frame_start_found;
33 int overread; ///< the number of bytes which where irreversibly read from the next frame
34 int overread_index; ///< the index into ParseContext.buffer of the overread bytes
37 struct MpegEncContext;
39 typedef struct ParseContext1{
41 /* XXX/FIXME PC1 vs. PC */
43 AVRational frame_rate;
44 int progressive_sequence;
47 /* XXX: suppress that, needed by MPEG4 */
48 struct MpegEncContext *enc;
52 #define END_NOT_FOUND (-100)
54 int ff_combine_frame(ParseContext *pc, int next, uint8_t **buf, int *buf_size);
55 int ff_mpeg4video_split(AVCodecContext *avctx, const uint8_t *buf,
57 void ff_parse_close(AVCodecParserContext *s);
58 void ff_parse1_close(AVCodecParserContext *s);
61 int ff_mpeg4_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size);
63 #endif /* !FFMPEG_PARSER_H */