diff options
Diffstat (limited to 'libavcodec/vorbis_parser.h')
-rw-r--r-- | libavcodec/vorbis_parser.h | 42 |
1 files changed, 16 insertions, 26 deletions
diff --git a/libavcodec/vorbis_parser.h b/libavcodec/vorbis_parser.h index 6e9a319e50..4af60cf827 100644 --- a/libavcodec/vorbis_parser.h +++ b/libavcodec/vorbis_parser.h @@ -1,5 +1,4 @@ /* - * Copyright (c) 2012 Justin Ruggles * * This file is part of FFmpeg. * @@ -20,35 +19,29 @@ /** * @file - * Vorbis audio parser + * A public API for Vorbis parsing * * Determines the duration for each packet. */ -#ifndef AVCODEC_VORBIS_PARSER_H -#define AVCODEC_VORBIS_PARSER_H +#ifndef AVCODEC_VORBIS_PARSE_H +#define AVCODEC_VORBIS_PARSE_H -#include "avcodec.h" - -typedef struct AVVorbisParseContext { - const AVClass *class; - int extradata_parsed; ///< we have attempted to parse extradata - int valid_extradata; ///< extradata is valid, so we can calculate duration - int blocksize[2]; ///< short and long window sizes - int previous_blocksize; ///< previous window size - int mode_blocksize[64]; ///< window size mapping for each mode - int mode_count; ///< number of modes - int mode_mask; ///< bitmask used to get the mode in each packet - int prev_mask; ///< bitmask used to get the previous mode flag in each packet -} AVVorbisParseContext; +typedef struct AVVorbisParseContext AVVorbisParseContext; /** - * Initialize the Vorbis parser using headers in the extradata. + * Allocate and initialize the Vorbis parser using headers in the extradata. * * @param avctx codec context * @param s Vorbis parser context */ -int avpriv_vorbis_parse_extradata(AVCodecContext *avctx, AVVorbisParseContext *s); +AVVorbisParseContext *av_vorbis_parse_init(const uint8_t *extradata, + int extradata_size); + +/** + * Free the parser and everything associated with it. + */ +void av_vorbis_parse_free(AVVorbisParseContext **s); #define VORBIS_FLAG_HEADER 0x00000001 #define VORBIS_FLAG_COMMENT 0x00000002 @@ -71,16 +64,13 @@ int avpriv_vorbis_parse_frame_flags(AVVorbisParseContext *s, const uint8_t *buf, /** * Get the duration for a Vorbis packet. * - * avpriv_vorbis_parse_extradata() must have been successfully called prior to - * this in order for a correct duration to be returned. - * * @param s Vorbis parser context * @param buf buffer containing a Vorbis frame * @param buf_size size of the buffer */ -int avpriv_vorbis_parse_frame(AVVorbisParseContext *s, const uint8_t *buf, - int buf_size); +int av_vorbis_parse_frame(AVVorbisParseContext *s, const uint8_t *buf, + int buf_size); -void avpriv_vorbis_parse_reset(AVVorbisParseContext *s); +void av_vorbis_parse_reset(AVVorbisParseContext *s); -#endif /* AVCODEC_VORBIS_PARSER_H */ +#endif /* AVCODEC_VORBIS_PARSE_H */ |