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bb3a14489e
Reviewed-by: Stefano Sabatini <stefasab@gmail.com> Signed-off-by: softworkz <softworkz@hotmail.com>
82 lines
2.4 KiB
C
82 lines
2.4 KiB
C
/*
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* Copyright (c) The FFmpeg developers
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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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* Internal utilities for text formatters.
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*/
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#ifndef FFTOOLS_TEXTFORMAT_TF_INTERNAL_H
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#define FFTOOLS_TEXTFORMAT_TF_INTERNAL_H
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#include "avtextformat.h"
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#define DEFINE_FORMATTER_CLASS(name) \
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static const AVClass name##_class = { \
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.class_name = #name, \
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.item_name = av_default_item_name, \
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.option = name##_options \
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}
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/**
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* Safely validate and access a section at a given level
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*/
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static inline const AVTextFormatSection *tf_get_section(AVTextFormatContext *tfc, int level)
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{
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if (!tfc || level < 0 || level >= SECTION_MAX_NB_LEVELS || !tfc->section[level]) {
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if (tfc)
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av_log(tfc, AV_LOG_ERROR, "Invalid section access at level %d\n", level);
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return NULL;
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}
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return tfc->section[level];
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}
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/**
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* Safely access the parent section
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*/
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static inline const AVTextFormatSection *tf_get_parent_section(AVTextFormatContext *tfc, int level)
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{
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if (level <= 0)
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return NULL;
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return tf_get_section(tfc, level - 1);
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}
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static inline void writer_w8(AVTextFormatContext *wctx, int b)
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{
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wctx->writer->writer->writer_w8(wctx->writer, b);
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}
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static inline void writer_put_str(AVTextFormatContext *wctx, const char *str)
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{
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wctx->writer->writer->writer_put_str(wctx->writer, str);
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}
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static inline void writer_printf(AVTextFormatContext *wctx, const char *fmt, ...)
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{
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va_list args;
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va_start(args, fmt);
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wctx->writer->writer->writer_vprintf(wctx->writer, fmt, args);
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va_end(args);
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}
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#endif /* FFTOOLS_TEXTFORMAT_TF_INTERNAL_H */
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