/* * AVCodecParser prototypes and definitions * Copyright (c) 2003 Fabrice Bellard. * Copyright (c) 2003 Michael Niedermayer. * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */#ifndef FFMPEG_PARSER_H#define FFMPEG_PARSER_Htypedef struct ParseContext{    uint8_t *buffer;    int index;    int last_index;    unsigned int buffer_size;    uint32_t state;             ///< contains the last few bytes in MSB order    int frame_start_found;    int overread;               ///< the number of bytes which where irreversibly read from the next frame    int overread_index;         ///< the index into ParseContext.buffer of the overread bytes} ParseContext;struct MpegEncContext;typedef struct ParseContext1{    ParseContext pc;/* XXX/FIXME PC1 vs. PC */    /* MPEG-2-specific */    AVRational frame_rate;    int progressive_sequence;    int width, height;    /* XXX: suppress that, needed by MPEG-4 */    struct MpegEncContext *enc;    int first_picture;} ParseContext1;#define END_NOT_FOUND (-100)int ff_combine_frame(ParseContext *pc, int next, const uint8_t **buf, int *buf_size);int ff_mpeg4video_split(AVCodecContext *avctx, const uint8_t *buf,                        int buf_size);void ff_parse_close(AVCodecParserContext *s);void ff_parse1_close(AVCodecParserContext *s);/** * Fetches timestamps for a specific byte within the current access unit. * @param off byte position within the access unit * @param remove Found timestamps will be removed if set to 1, kept if set to 0. */void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove);#endif /* FFMPEG_PARSER_H */