vorbiscomment.h 1.93 KB
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/*
 * VorbisComment writer
 * Copyright (c) 2009 James Darnley
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg 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.
 *
 * FFmpeg 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 FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef AVFORMAT_VORBISCOMMENT_H
#define AVFORMAT_VORBISCOMMENT_H

#include "avformat.h"
#include "metadata.h"

/**
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 * Calculate the length in bytes of a VorbisComment. This is the minimum
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 * size required by ff_vorbiscomment_write().
 *
 * @param m The metadata structure to be parsed. For no metadata, set to NULL.
 * @param vendor_string The vendor string to be added into the VorbisComment.
 * For no string, set to an empty string.
 * @return The length in bytes.
 */
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int64_t ff_vorbiscomment_length(AVDictionary *m, const char *vendor_string);
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/**
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 * Write a VorbisComment into a buffer. The buffer, p, must have enough
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 * data to hold the whole VorbisComment. The minimum size required can be
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 * obtained by passing the same AVDictionary and vendor_string to
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 * ff_vorbiscomment_length()
 *
 * @param p The buffer in which to write.
 * @param m The metadata struct to write.
 * @param vendor_string The vendor string to write.
 */
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int ff_vorbiscomment_write(uint8_t **p, AVDictionary **m,
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                           const char *vendor_string);
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extern const AVMetadataConv ff_vorbiscomment_metadata_conv[];

#endif /* AVFORMAT_VORBISCOMMENT_H */