| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Generic TTML helpers | ||
| 3 | * Copyright (c) 2021 24i | ||
| 4 | * | ||
| 5 | * This file is part of FFmpeg. | ||
| 6 | * | ||
| 7 | * FFmpeg is free software; you can redistribute it and/or | ||
| 8 | * modify it under the terms of the GNU Lesser General Public | ||
| 9 | * License as published by the Free Software Foundation; either | ||
| 10 | * version 2.1 of the License, or (at your option) any later version. | ||
| 11 | * | ||
| 12 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 15 | * Lesser General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU Lesser General Public | ||
| 18 | * License along with FFmpeg; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 20 | */ | ||
| 21 | |||
| 22 | #ifndef AVFORMAT_TTMLENC_H | ||
| 23 | #define AVFORMAT_TTMLENC_H | ||
| 24 | |||
| 25 | #include "libavcodec/codec_par.h" | ||
| 26 | #include "libavcodec/ttmlenc.h" | ||
| 27 | |||
| 28 | 5 | static inline unsigned int ff_is_ttml_stream_paragraph_based(const AVCodecParameters *codecpar) | |
| 29 | { | ||
| 30 | // Not perfect, but decide whether the packet is a document or not | ||
| 31 | // by the existence of the lavc ttmlenc extradata. | ||
| 32 | 10 | return (codecpar->extradata && | |
| 33 |
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10 | codecpar->extradata_size >= TTMLENC_EXTRADATA_SIGNATURE_SIZE && |
| 34 |
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5 | !memcmp(codecpar->extradata, |
| 35 | TTMLENC_EXTRADATA_SIGNATURE, | ||
| 36 | TTMLENC_EXTRADATA_SIGNATURE_SIZE)); | ||
| 37 | } | ||
| 38 | |||
| 39 | #endif /* AVFORMAT_TTMLENC_H */ | ||
| 40 |