mirror of
https://github.com/xenia-project/FFmpeg.git
synced 2024-11-27 05:20:48 +00:00
42 lines
1.6 KiB
C
42 lines
1.6 KiB
C
/*
|
|
* AC-3 parser prototypes
|
|
* Copyright (c) 2003 Fabrice Bellard
|
|
* Copyright (c) 2003 Michael Niedermayer
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* Libav is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVCODEC_AC3_PARSER_H
|
|
#define AVCODEC_AC3_PARSER_H
|
|
|
|
#include "ac3.h"
|
|
#include "get_bits.h"
|
|
|
|
/**
|
|
* Parse AC-3 frame header.
|
|
* Parse the header up to the lfeon element, which is the first 52 or 54 bits
|
|
* depending on the audio coding mode.
|
|
* @param[in] gbc BitContext containing the first 54 bits of the frame.
|
|
* @param[out] hdr Pointer to struct where header info is written.
|
|
* @return Returns 0 on success, -1 if there is a sync word mismatch,
|
|
* -2 if the bsid (version) element is invalid, -3 if the fscod (sample rate)
|
|
* element is invalid, or -4 if the frmsizecod (bit rate) element is invalid.
|
|
*/
|
|
int avpriv_ac3_parse_header(GetBitContext *gbc, AC3HeaderInfo *hdr);
|
|
|
|
#endif /* AVCODEC_AC3_PARSER_H */
|