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75 lines
2.2 KiB
C
75 lines
2.2 KiB
C
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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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/**
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* @file
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* A public API for Vorbis parsing
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*
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* Determines the duration for each packet.
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*/
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#ifndef AVCODEC_VORBIS_PARSER_H
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#define AVCODEC_VORBIS_PARSER_H
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#include <stdint.h>
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typedef struct AVVorbisParseContext AVVorbisParseContext;
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/**
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* Allocate and initialize the Vorbis parser using headers in the extradata.
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*/
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AVVorbisParseContext *av_vorbis_parse_init(const uint8_t *extradata,
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int extradata_size);
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/**
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* Free the parser and everything associated with it.
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*/
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void av_vorbis_parse_free(AVVorbisParseContext **s);
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#define VORBIS_FLAG_HEADER 0x00000001
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#define VORBIS_FLAG_COMMENT 0x00000002
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#define VORBIS_FLAG_SETUP 0x00000004
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/**
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* Get the duration for a Vorbis packet.
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*
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* If @p flags is @c NULL,
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* special frames are considered invalid.
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*
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* @param s Vorbis parser context
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* @param buf buffer containing a Vorbis frame
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* @param buf_size size of the buffer
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* @param flags flags for special frames
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*/
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int av_vorbis_parse_frame_flags(AVVorbisParseContext *s, const uint8_t *buf,
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int buf_size, int *flags);
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/**
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* Get the duration for a Vorbis packet.
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*
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* @param s Vorbis parser context
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* @param buf buffer containing a Vorbis frame
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* @param buf_size size of the buffer
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*/
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int av_vorbis_parse_frame(AVVorbisParseContext *s, const uint8_t *buf,
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int buf_size);
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void av_vorbis_parse_reset(AVVorbisParseContext *s);
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#endif /* AVCODEC_VORBIS_PARSER_H */
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