| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * Metadata muxer | ||
| 3 | * Copyright (c) 2010 Anton Khirnov | ||
| 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 | #include <inttypes.h> | ||
| 23 | |||
| 24 | #include "avformat.h" | ||
| 25 | #include "ffmeta.h" | ||
| 26 | #include "mux.h" | ||
| 27 | #include "libavutil/dict.h" | ||
| 28 | |||
| 29 | |||
| 30 | 36 | static void write_escape_str(AVIOContext *s, const uint8_t *str) | |
| 31 | { | ||
| 32 | 36 | const uint8_t *p = str; | |
| 33 | |||
| 34 |
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730 | while (*p) { |
| 35 |
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694 | if (*p == '#' || *p == ';' || *p == '=' || *p == '\\' || *p == '\n') |
| 36 | ✗ | avio_w8(s, '\\'); | |
| 37 | 694 | avio_w8(s, *p); | |
| 38 | 694 | p++; | |
| 39 | } | ||
| 40 | 36 | } | |
| 41 | |||
| 42 | 8 | static void write_tags(AVIOContext *s, AVDictionary *m) | |
| 43 | { | ||
| 44 | 8 | const AVDictionaryEntry *t = NULL; | |
| 45 |
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26 | while ((t = av_dict_iterate(m, t))) { |
| 46 | 18 | write_escape_str(s, t->key); | |
| 47 | 18 | avio_w8(s, '='); | |
| 48 | 18 | write_escape_str(s, t->value); | |
| 49 | 18 | avio_w8(s, '\n'); | |
| 50 | } | ||
| 51 | 8 | } | |
| 52 | |||
| 53 | 2 | static int write_header(AVFormatContext *s) | |
| 54 | { | ||
| 55 | 2 | avio_write(s->pb, ID_STRING, sizeof(ID_STRING) - 1); | |
| 56 | 2 | avio_w8(s->pb, '1'); // version | |
| 57 | 2 | avio_w8(s->pb, '\n'); | |
| 58 | 2 | return 0; | |
| 59 | } | ||
| 60 | |||
| 61 | 2 | static int write_trailer(AVFormatContext *s) | |
| 62 | { | ||
| 63 | int i; | ||
| 64 | |||
| 65 | 2 | write_tags(s->pb, s->metadata); | |
| 66 | |||
| 67 |
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8 | for (i = 0; i < s->nb_streams; i++) { |
| 68 | 6 | avio_write(s->pb, ID_STREAM, sizeof(ID_STREAM) - 1); | |
| 69 | 6 | avio_w8(s->pb, '\n'); | |
| 70 | 6 | write_tags(s->pb, s->streams[i]->metadata); | |
| 71 | } | ||
| 72 | |||
| 73 |
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2 | for (i = 0; i < s->nb_chapters; i++) { |
| 74 | ✗ | AVChapter *ch = s->chapters[i]; | |
| 75 | ✗ | avio_write(s->pb, ID_CHAPTER, sizeof(ID_CHAPTER) - 1); | |
| 76 | ✗ | avio_w8(s->pb, '\n'); | |
| 77 | ✗ | avio_printf(s->pb, "TIMEBASE=%d/%d\n", ch->time_base.num, ch->time_base.den); | |
| 78 | ✗ | avio_printf(s->pb, "START=%"PRId64"\n", ch->start); | |
| 79 | ✗ | avio_printf(s->pb, "END=%"PRId64"\n", ch->end); | |
| 80 | ✗ | write_tags(s->pb, ch->metadata); | |
| 81 | } | ||
| 82 | |||
| 83 | 2 | return 0; | |
| 84 | } | ||
| 85 | |||
| 86 | ✗ | static int write_packet(AVFormatContext *s, AVPacket *pkt) | |
| 87 | { | ||
| 88 | ✗ | return 0; | |
| 89 | } | ||
| 90 | |||
| 91 | const FFOutputFormat ff_ffmetadata_muxer = { | ||
| 92 | .p.name = "ffmetadata", | ||
| 93 | .p.long_name = NULL_IF_CONFIG_SMALL("FFmpeg metadata in text"), | ||
| 94 | .p.extensions = "ffmeta", | ||
| 95 | .write_header = write_header, | ||
| 96 | .write_packet = write_packet, | ||
| 97 | .write_trailer = write_trailer, | ||
| 98 | .p.flags = AVFMT_NOTIMESTAMPS | AVFMT_NOSTREAMS, | ||
| 99 | }; | ||
| 100 |