1/* 2 * Copyright (c) 2009 Aurelien Jacobs <aurel@gnuage.org> 3 * 4 * This file is part of FFmpeg. 5 * 6 * FFmpeg is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU Lesser General Public 8 * License as published by the Free Software Foundation; either 9 * version 2.1 of the License, or (at your option) any later version. 10 * 11 * FFmpeg is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 * Lesser General Public License for more details. 15 * 16 * You should have received a copy of the GNU Lesser General Public 17 * License along with FFmpeg; if not, write to the Free Software 18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 */ 20 21#include <strings.h> 22#include "avformat.h" 23#include "metadata.h" 24#include "libavutil/avstring.h" 25 26#if LIBAVFORMAT_VERSION_MAJOR < 53 27 28#define SIZE_OFFSET(x) sizeof(((AVFormatContext*)0)->x),offsetof(AVFormatContext,x) 29 30static const struct { 31 const char name[16]; 32 int size; 33 int offset; 34} compat_tab[] = { 35 { "title", SIZE_OFFSET(title) }, 36 { "author", SIZE_OFFSET(author) }, 37 { "copyright", SIZE_OFFSET(copyright) }, 38 { "comment", SIZE_OFFSET(comment) }, 39 { "album", SIZE_OFFSET(album) }, 40 { "year", SIZE_OFFSET(year) }, 41 { "track", SIZE_OFFSET(track) }, 42 { "genre", SIZE_OFFSET(genre) }, 43 44 { "artist", SIZE_OFFSET(author) }, 45 { "creator", SIZE_OFFSET(author) }, 46 { "written_by", SIZE_OFFSET(author) }, 47 { "lead_performer", SIZE_OFFSET(author) }, 48 { "description", SIZE_OFFSET(comment) }, 49 { "albumtitle", SIZE_OFFSET(album) }, 50 { "date_written", SIZE_OFFSET(year) }, 51 { "date_released", SIZE_OFFSET(year) }, 52 { "tracknumber", SIZE_OFFSET(track) }, 53 { "part_number", SIZE_OFFSET(track) }, 54}; 55 56void ff_metadata_demux_compat(AVFormatContext *ctx) 57{ 58 AVMetadata *m; 59 int i, j; 60 61 if ((m = ctx->metadata)) 62 for (j=0; j<m->count; j++) 63 for (i=0; i<FF_ARRAY_ELEMS(compat_tab); i++) 64 if (!strcasecmp(m->elems[j].key, compat_tab[i].name)) { 65 int *ptr = (int *)((char *)ctx+compat_tab[i].offset); 66 if (*ptr) continue; 67 if (compat_tab[i].size > sizeof(int)) 68 av_strlcpy((char *)ptr, m->elems[j].value, compat_tab[i].size); 69 else 70 *ptr = atoi(m->elems[j].value); 71 } 72 73 for (i=0; i<ctx->nb_chapters; i++) 74 if ((m = ctx->chapters[i]->metadata)) 75 for (j=0; j<m->count; j++) 76 if (!strcasecmp(m->elems[j].key, "title")) { 77 av_free(ctx->chapters[i]->title); 78 ctx->chapters[i]->title = av_strdup(m->elems[j].value); 79 } 80 81 for (i=0; i<ctx->nb_programs; i++) 82 if ((m = ctx->programs[i]->metadata)) 83 for (j=0; j<m->count; j++) { 84 if (!strcasecmp(m->elems[j].key, "name")) { 85 av_free(ctx->programs[i]->name); 86 ctx->programs[i]->name = av_strdup(m->elems[j].value); 87 } 88 if (!strcasecmp(m->elems[j].key, "provider_name")) { 89 av_free(ctx->programs[i]->provider_name); 90 ctx->programs[i]->provider_name = av_strdup(m->elems[j].value); 91 } 92 } 93 94 for (i=0; i<ctx->nb_streams; i++) 95 if ((m = ctx->streams[i]->metadata)) 96 for (j=0; j<m->count; j++) { 97 if (!strcasecmp(m->elems[j].key, "language")) 98 av_strlcpy(ctx->streams[i]->language, m->elems[j].value, 4); 99 if (!strcasecmp(m->elems[j].key, "filename")) { 100 av_free(ctx->streams[i]->filename); 101 ctx->streams[i]->filename= av_strdup(m->elems[j].value); 102 } 103 } 104} 105 106 107#define FILL_METADATA(s, key, value) { \ 108 if (value && *value && !av_metadata_get(s->metadata, #key, NULL, 0)) \ 109 av_metadata_set(&s->metadata, #key, value); \ 110 } 111#define FILL_METADATA_STR(s, key) FILL_METADATA(s, key, s->key) 112#define FILL_METADATA_INT(s, key) { \ 113 char number[10]; \ 114 snprintf(number, sizeof(number), "%d", s->key); \ 115 if(s->key) FILL_METADATA(s, key, number) } 116 117void ff_metadata_mux_compat(AVFormatContext *ctx) 118{ 119 int i; 120 121 if (ctx->metadata && ctx->metadata->count > 0) 122 return; 123 124 FILL_METADATA_STR(ctx, title); 125 FILL_METADATA_STR(ctx, author); 126 FILL_METADATA_STR(ctx, copyright); 127 FILL_METADATA_STR(ctx, comment); 128 FILL_METADATA_STR(ctx, album); 129 FILL_METADATA_INT(ctx, year); 130 FILL_METADATA_INT(ctx, track); 131 FILL_METADATA_STR(ctx, genre); 132 for (i=0; i<ctx->nb_chapters; i++) 133 FILL_METADATA_STR(ctx->chapters[i], title); 134 for (i=0; i<ctx->nb_programs; i++) { 135 FILL_METADATA_STR(ctx->programs[i], name); 136 FILL_METADATA_STR(ctx->programs[i], provider_name); 137 } 138 for (i=0; i<ctx->nb_streams; i++) { 139 FILL_METADATA_STR(ctx->streams[i], language); 140 FILL_METADATA_STR(ctx->streams[i], filename); 141 } 142} 143 144#endif /* LIBAVFORMAT_VERSION_MAJOR < 53 */ 145