repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
1 | /* |
| 2 | * AVCodecParser prototypes and definitions | |
| 3 | * Copyright (c) 2003 Fabrice Bellard | |
| 4 | * Copyright (c) 2003 Michael Niedermayer | |
| 5 | * | |
| 6 | * This file is part of FFmpeg. | |
| 7 | * | |
| 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. | |
| 12 | * | |
| 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. | |
| 17 | * | |
| 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 | |
| 21 | */ | |
| 22 | ||
| 23 | #ifndef AVCODEC_PARSER_H | |
| 24 | #define AVCODEC_PARSER_H | |
| 25 | ||
| 26 | #include "avcodec.h" | |
| 27 | ||
| 28 | typedef struct ParseContext{ | |
| 29 | uint8_t *buffer; | |
| 30 | int index; | |
| 31 | int last_index; | |
| 32 | unsigned int buffer_size; | |
| 33 | uint32_t state; ///< contains the last few bytes in MSB order | |
| 34 | int frame_start_found; | |
| 35 | int overread; ///< the number of bytes which where irreversibly read from the next frame | |
| 36 | int overread_index; ///< the index into ParseContext.buffer of the overread bytes | |
| 37 | uint64_t state64; ///< contains the last 8 bytes in MSB order | |
| 38 | } ParseContext; | |
| 39 | ||
| 40 | #define END_NOT_FOUND (-100) | |
| 41 | ||
| 42 | /** | |
| 43 | * Combine the (truncated) bitstream to a complete frame. | |
| 44 | * @return -1 if no complete frame could be created, | |
| 45 | * AVERROR(ENOMEM) if there was a memory allocation error | |
| 46 | */ | |
| 47 | int ff_combine_frame(ParseContext *pc, int next, const uint8_t **buf, int *buf_size); | |
| 48 | int ff_mpeg4video_split(AVCodecContext *avctx, const uint8_t *buf, | |
| 49 | int buf_size); | |
| 50 | void ff_parse_close(AVCodecParserContext *s); | |
| 51 | ||
| 52 | /** | |
| 53 | * Fetch timestamps for a specific byte within the current access unit. | |
| 54 | * @param off byte position within the access unit | |
| 55 | * @param remove Found timestamps will be removed if set to 1, kept if set to 0. | |
| 56 | */ | |
| 57 | void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove); | |
| 58 | ||
| 59 | #endif /* AVCODEC_PARSER_H */ |