mirror of https://git.ffmpeg.org/ffmpeg.git
65 lines
2.1 KiB
C
65 lines
2.1 KiB
C
/*
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* AVCodecParser prototypes and definitions
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* Copyright (c) 2003 Fabrice Bellard.
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* Copyright (c) 2003 Michael Niedermayer.
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef FFMPEG_PARSER_H
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#define FFMPEG_PARSER_H
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typedef struct ParseContext{
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uint8_t *buffer;
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int index;
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int last_index;
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unsigned int buffer_size;
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uint32_t state; ///< contains the last few bytes in MSB order
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int frame_start_found;
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int overread; ///< the number of bytes which where irreversibly read from the next frame
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int overread_index; ///< the index into ParseContext.buffer of the overreaded bytes
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} ParseContext;
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struct MpegEncContext;
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typedef struct ParseContext1{
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ParseContext pc;
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/* XXX/FIXME PC1 vs. PC */
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/* MPEG2 specific */
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AVRational frame_rate;
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int progressive_sequence;
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int width, height;
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/* XXX: suppress that, needed by MPEG4 */
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struct MpegEncContext *enc;
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int first_picture;
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} ParseContext1;
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#define END_NOT_FOUND (-100)
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int ff_combine_frame(ParseContext *pc, int next, uint8_t **buf, int *buf_size);
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void ff_parse_close(AVCodecParserContext *s);
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void ff_parse1_close(AVCodecParserContext *s);
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/* h263dec.c */
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int ff_mpeg4_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size);
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/* cavs.c */
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int ff_cavs_find_frame_end(ParseContext *pc, const uint8_t *buf, int buf_size);
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#endif /* !FFMPEG_PARSER_H */
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