duckstation

duckstation, but archived from the revision just before upstream changed it to a proprietary software project, this version is the libre one
git clone https://git.neptards.moe/u3shit/duckstation.git
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vorbis_parser.h (2285B)

      1 /*
      2  * This file is part of FFmpeg.
      3  *
      4  * FFmpeg is free software; you can redistribute it and/or
      5  * modify it under the terms of the GNU Lesser General Public
      6  * License as published by the Free Software Foundation; either
      7  * version 2.1 of the License, or (at your option) any later version.
      8  *
      9  * FFmpeg is distributed in the hope that it will be useful,
     10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     12  * Lesser General Public License for more details.
     13  *
     14  * You should have received a copy of the GNU Lesser General Public
     15  * License along with FFmpeg; if not, write to the Free Software
     16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
     17  */
     18 
     19 /**
     20  * @file
     21  * A public API for Vorbis parsing
     22  *
     23  * Determines the duration for each packet.
     24  */
     25 
     26 #ifndef AVCODEC_VORBIS_PARSER_H
     27 #define AVCODEC_VORBIS_PARSER_H
     28 
     29 #include <stdint.h>
     30 
     31 typedef struct AVVorbisParseContext AVVorbisParseContext;
     32 
     33 /**
     34  * Allocate and initialize the Vorbis parser using headers in the extradata.
     35  */
     36 AVVorbisParseContext *av_vorbis_parse_init(const uint8_t *extradata,
     37                                            int extradata_size);
     38 
     39 /**
     40  * Free the parser and everything associated with it.
     41  */
     42 void av_vorbis_parse_free(AVVorbisParseContext **s);
     43 
     44 #define VORBIS_FLAG_HEADER  0x00000001
     45 #define VORBIS_FLAG_COMMENT 0x00000002
     46 #define VORBIS_FLAG_SETUP   0x00000004
     47 
     48 /**
     49  * Get the duration for a Vorbis packet.
     50  *
     51  * If @p flags is @c NULL,
     52  * special frames are considered invalid.
     53  *
     54  * @param s        Vorbis parser context
     55  * @param buf      buffer containing a Vorbis frame
     56  * @param buf_size size of the buffer
     57  * @param flags    flags for special frames
     58  */
     59 int av_vorbis_parse_frame_flags(AVVorbisParseContext *s, const uint8_t *buf,
     60                                 int buf_size, int *flags);
     61 
     62 /**
     63  * Get the duration for a Vorbis packet.
     64  *
     65  * @param s        Vorbis parser context
     66  * @param buf      buffer containing a Vorbis frame
     67  * @param buf_size size of the buffer
     68  */
     69 int av_vorbis_parse_frame(AVVorbisParseContext *s, const uint8_t *buf,
     70                           int buf_size);
     71 
     72 void av_vorbis_parse_reset(AVVorbisParseContext *s);
     73 
     74 #endif /* AVCODEC_VORBIS_PARSER_H */