repositories / deb_ffmpeg.git / blame
| Commit | Line | Data |
|---|---|---|
| 2ba45a60 DM |
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 "libavutil/dict.h" | |
| 27 | ||
| 28 | ||
| 29 | static void write_escape_str(AVIOContext *s, const uint8_t *str) | |
| 30 | { | |
| 31 | const uint8_t *p = str; | |
| 32 | ||
| 33 | while (*p) { | |
| 34 | if (*p == '#' || *p == ';' || *p == '=' || *p == '\\' || *p == '\n') | |
| 35 | avio_w8(s, '\\'); | |
| 36 | avio_w8(s, *p); | |
| 37 | p++; | |
| 38 | } | |
| 39 | } | |
| 40 | ||
| 41 | static void write_tags(AVIOContext *s, AVDictionary *m) | |
| 42 | { | |
| 43 | AVDictionaryEntry *t = NULL; | |
| 44 | while ((t = av_dict_get(m, "", t, AV_DICT_IGNORE_SUFFIX))) { | |
| 45 | write_escape_str(s, t->key); | |
| 46 | avio_w8(s, '='); | |
| 47 | write_escape_str(s, t->value); | |
| 48 | avio_w8(s, '\n'); | |
| 49 | } | |
| 50 | } | |
| 51 | ||
| 52 | static int write_header(AVFormatContext *s) | |
| 53 | { | |
| 54 | avio_write(s->pb, ID_STRING, sizeof(ID_STRING) - 1); | |
| 55 | avio_w8(s->pb, '1'); // version | |
| 56 | avio_w8(s->pb, '\n'); | |
| 57 | avio_flush(s->pb); | |
| 58 | return 0; | |
| 59 | } | |
| 60 | ||
| 61 | static int write_trailer(AVFormatContext *s) | |
| 62 | { | |
| 63 | int i; | |
| 64 | ||
| 65 | write_tags(s->pb, s->metadata); | |
| 66 | ||
| 67 | for (i = 0; i < s->nb_streams; i++) { | |
| 68 | avio_write(s->pb, ID_STREAM, sizeof(ID_STREAM) - 1); | |
| 69 | avio_w8(s->pb, '\n'); | |
| 70 | write_tags(s->pb, s->streams[i]->metadata); | |
| 71 | } | |
| 72 | ||
| 73 | 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 | return 0; | |
| 84 | } | |
| 85 | ||
| 86 | static int write_packet(AVFormatContext *s, AVPacket *pkt) | |
| 87 | { | |
| 88 | return 0; | |
| 89 | } | |
| 90 | ||
| 91 | AVOutputFormat ff_ffmetadata_muxer = { | |
| 92 | .name = "ffmetadata", | |
| 93 | .long_name = NULL_IF_CONFIG_SMALL("FFmpeg metadata in text"), | |
| 94 | .extensions = "ffmeta", | |
| 95 | .write_header = write_header, | |
| 96 | .write_packet = write_packet, | |
| 97 | .write_trailer = write_trailer, | |
| 98 | .flags = AVFMT_NOTIMESTAMPS | AVFMT_NOSTREAMS, | |
| 99 | }; |