This way it can be re-utilized in movenc.
Unified · Split
| @@ -30,6 +30,7 @@ · 29 unmodified lines | |||
| 30 | #include "libavutil/avstring.h" | 30 | #include "libavutil/avstring.h" |
| 31 | #include "avformat.h" | 31 | #include "avformat.h" |
| 32 | #include "internal.h" | 32 | #include "internal.h" |
| 33 | #include "ttmlenc.h" | ||
| 33 | #include "libavcodec/ttmlenc.h" | 34 | #include "libavcodec/ttmlenc.h" |
| 34 | #include "libavutil/internal.h" | 35 | #include "libavutil/internal.h" |
| 35 | 36 | ||
| @@ -138,13 +139,7 @@ static int ttml_write_header(AVFormatContext *ctx) · 102 unmodified lines | |||
| 138 | 0); | 139 | 0); |
| 139 | const char *printed_lang = (lang && lang->value) ? lang->value : ""; | 140 | const char *printed_lang = (lang && lang->value) ? lang->value : ""; |
| 140 | 141 | ||
| 141 | // Not perfect, but decide whether the packet is a document or not | 142 | ttml_ctx->input_type = ff_is_ttml_stream_paragraph_based(st->codecpar) ? |
| 142 | // by the existence of the lavc ttmlenc extradata. | ||
| 143 | ttml_ctx->input_type = (st->codecpar->extradata && | ||
| 144 | st->codecpar->extradata_size >= TTMLENC_EXTRADATA_SIGNATURE_SIZE && | ||
| 145 | !memcmp(st->codecpar->extradata, | ||
| 146 | TTMLENC_EXTRADATA_SIGNATURE, | ||
| 147 | TTMLENC_EXTRADATA_SIGNATURE_SIZE)) ? | ||
| 148 | PACKET_TYPE_PARAGRAPH : | 143 | PACKET_TYPE_PARAGRAPH : |
| 149 | PACKET_TYPE_DOCUMENT; | 144 | PACKET_TYPE_DOCUMENT; |
| 150 | 145 | ||
| @@ -0,0 +1,39 @@ | |||
| 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 | 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 | return (codecpar->extradata && | ||
| 33 | codecpar->extradata_size >= TTMLENC_EXTRADATA_SIGNATURE_SIZE && | ||
| 34 | !memcmp(codecpar->extradata, | ||
| 35 | TTMLENC_EXTRADATA_SIGNATURE, | ||
| 36 | TTMLENC_EXTRADATA_SIGNATURE_SIZE)); | ||
| 37 | } | ||
| 38 | |||
| 39 | #endif /* AVFORMAT_TTMLENC_H */ | ||