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
27
33 uint32_t
state;
///< contains the last few bytes in MSB order
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
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 */
49 int buf_size);
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 * @param fuzzy Only use found value if it is more informative than what we already have
57 */
59
60 #endif /* AVCODEC_PARSER_H */
int ff_mpeg4video_split(AVCodecContext *avctx, const uint8_t *buf, int buf_size)
void ff_parse_close(AVCodecParserContext *s)
int ff_combine_frame(ParseContext *pc, int next, const uint8_t **buf, int *buf_size)
Combine the (truncated) bitstream to a complete frame.
int overread_index
the index into ParseContext.buffer of the overread bytes
Libavcodec external API header.
int overread
the number of bytes which where irreversibly read from the next frame
main external API structure.
uint32_t state
contains the last few bytes in MSB order
uint64_t state64
contains the last 8 bytes in MSB order
void ff_fetch_timestamp(AVCodecParserContext *s, int off, int remove, int fuzzy)
Fetch timestamps for a specific byte within the current access unit.