00001 /* 00002 * AVCodecParser prototypes and definitions 00003 * Copyright (c) 2003 Fabrice Bellard 00004 * Copyright (c) 2003 Michael Niedermayer 00005 * 00006 * This file is part of FFmpeg. 00007 * 00008 * FFmpeg is free software; you can redistribute it and/or 00009 * modify it under the terms of the GNU Lesser General Public 00010 * License as published by the Free Software Foundation; either 00011 * version 2.1 of the License, or (at your option) any later version. 00012 * 00013 * FFmpeg is distributed in the hope that it will be useful, 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00016 * Lesser General Public License for more details. 00017 * 00018 * You should have received a copy of the GNU Lesser General Public 00019 * License along with FFmpeg; if not, write to the Free Software 00020 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00021 */ 00022 00023 #ifndef AVCODEC_PARSER_H 00024 #define AVCODEC_PARSER_H 00025 00026 #include "avcodec.h" 00027 00028 typedef struct ParseContext{ 00029 uint8_t *buffer; 00030 int index; 00031 int last_index; 00032 unsigned int buffer_size; 00033 uint32_t state; 00034 int frame_start_found; 00035 int overread; 00036 int overread_index; 00037 uint64_t state64; 00038 } ParseContext; 00039 00040 struct MpegEncContext; 00041 00042 typedef struct ParseContext1{ 00043 ParseContext pc; 00044 /* XXX/FIXME PC1 vs. PC */ 00045 /* MPEG-2-specific */ 00046 AVRational frame_rate; 00047 int progressive_sequence; 00048 int width, height; 00049 00050 /* XXX: suppress that, needed by MPEG-4 */ 00051 struct MpegEncContext *enc; 00052 int first_picture; 00053 } ParseContext1; 00054 00055 #define END_NOT_FOUND (-100) 00056 00057 int ff_combine_frame(ParseContext *pc, int next, const uint8_t **buf, int *buf_size); 00058 int ff_mpeg4video_split(AVCodecContext *avctx, const uint8_t *buf, 00059 int buf_size); 00060 void ff_parse_close(AVCodecParserContext *s); 00061 void ff_parse1_close(AVCodecParserContext *s); 00062 00068 void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove); 00069 00070 #endif /* AVCODEC_PARSER_H */
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