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FFmpeg/libavcodec/ttmlenc.h
Jan Ekström 3ef5a8ba2b avcodec/ttmlenc: add initial support for regions and styles
Attempts to utilize the TTML cell resolution as a mapping to the
reference resolution, and maps font size to cell size. Additionally
sets the display and text alignment according to the ASS alignment
number.

Signed-off-by: Jan Ekström <jan.ekstrom@24i.com>
2021-04-26 16:40:31 +03:00

35 lines
1.3 KiB
C

/*
* TTML subtitle encoder shared functionality
* Copyright (c) 2020 24i
*
* 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 AVCODEC_TTMLENC_H
#define AVCODEC_TTMLENC_H
#define TTMLENC_EXTRADATA_SIGNATURE "lavc-ttmlenc"
#define TTMLENC_EXTRADATA_SIGNATURE_SIZE (sizeof(TTMLENC_EXTRADATA_SIGNATURE) - 1)
static const char ttml_default_namespacing[] =
" xmlns=\"http://www.w3.org/ns/ttml\"\n"
" xmlns:ttm=\"http://www.w3.org/ns/ttml#metadata\"\n"
" xmlns:tts=\"http://www.w3.org/ns/ttml#styling\"\n"
" xmlns:ttp=\"http://www.w3.org/ns/ttml#parameter\"\n";
#endif /* AVCODEC_TTMLENC_H */