Libav
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00001 /* 00002 * Copyright (c) 2009 Aurelien Jacobs <aurel@gnuage.org> 00003 * 00004 * This file is part of FFmpeg. 00005 * 00006 * FFmpeg is free software; you can redistribute it and/or 00007 * modify it under the terms of the GNU Lesser General Public 00008 * License as published by the Free Software Foundation; either 00009 * version 2.1 of the License, or (at your option) any later version. 00010 * 00011 * FFmpeg is distributed in the hope that it will be useful, 00012 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00014 * Lesser General Public License for more details. 00015 * 00016 * You should have received a copy of the GNU Lesser General Public 00017 * License along with FFmpeg; if not, write to the Free Software 00018 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00019 */ 00020 00021 #include <strings.h> 00022 #include "avformat.h" 00023 #include "metadata.h" 00024 #include "libavutil/avstring.h" 00025 00026 #if LIBAVFORMAT_VERSION_MAJOR < 53 00027 00028 #define SIZE_OFFSET(x) sizeof(((AVFormatContext*)0)->x),offsetof(AVFormatContext,x) 00029 00030 static const struct { 00031 const char name[16]; 00032 int size; 00033 int offset; 00034 } compat_tab[] = { 00035 { "title", SIZE_OFFSET(title) }, 00036 { "author", SIZE_OFFSET(author) }, 00037 { "copyright", SIZE_OFFSET(copyright) }, 00038 { "comment", SIZE_OFFSET(comment) }, 00039 { "album", SIZE_OFFSET(album) }, 00040 { "year", SIZE_OFFSET(year) }, 00041 { "track", SIZE_OFFSET(track) }, 00042 { "genre", SIZE_OFFSET(genre) }, 00043 00044 { "artist", SIZE_OFFSET(author) }, 00045 { "creator", SIZE_OFFSET(author) }, 00046 { "written_by", SIZE_OFFSET(author) }, 00047 { "lead_performer", SIZE_OFFSET(author) }, 00048 { "composer", SIZE_OFFSET(author) }, 00049 { "performer", SIZE_OFFSET(author) }, 00050 { "description", SIZE_OFFSET(comment) }, 00051 { "albumtitle", SIZE_OFFSET(album) }, 00052 { "date", SIZE_OFFSET(year) }, 00053 { "date_written", SIZE_OFFSET(year) }, 00054 { "date_released", SIZE_OFFSET(year) }, 00055 { "tracknumber", SIZE_OFFSET(track) }, 00056 { "part_number", SIZE_OFFSET(track) }, 00057 }; 00058 00059 void ff_metadata_demux_compat(AVFormatContext *ctx) 00060 { 00061 AVMetadata *m; 00062 int i, j; 00063 00064 if ((m = ctx->metadata)) 00065 for (j=0; j<m->count; j++) 00066 for (i=0; i<FF_ARRAY_ELEMS(compat_tab); i++) 00067 if (!strcasecmp(m->elems[j].key, compat_tab[i].name)) { 00068 int *ptr = (int *)((char *)ctx+compat_tab[i].offset); 00069 if (*ptr) continue; 00070 if (compat_tab[i].size > sizeof(int)) 00071 av_strlcpy((char *)ptr, m->elems[j].value, compat_tab[i].size); 00072 else 00073 *ptr = atoi(m->elems[j].value); 00074 } 00075 00076 for (i=0; i<ctx->nb_chapters; i++) 00077 if ((m = ctx->chapters[i]->metadata)) 00078 for (j=0; j<m->count; j++) 00079 if (!strcasecmp(m->elems[j].key, "title")) { 00080 av_free(ctx->chapters[i]->title); 00081 ctx->chapters[i]->title = av_strdup(m->elems[j].value); 00082 } 00083 00084 for (i=0; i<ctx->nb_programs; i++) 00085 if ((m = ctx->programs[i]->metadata)) 00086 for (j=0; j<m->count; j++) { 00087 if (!strcasecmp(m->elems[j].key, "name")) { 00088 av_free(ctx->programs[i]->name); 00089 ctx->programs[i]->name = av_strdup(m->elems[j].value); 00090 } 00091 if (!strcasecmp(m->elems[j].key, "provider_name")) { 00092 av_free(ctx->programs[i]->provider_name); 00093 ctx->programs[i]->provider_name = av_strdup(m->elems[j].value); 00094 } 00095 } 00096 00097 for (i=0; i<ctx->nb_streams; i++) 00098 if ((m = ctx->streams[i]->metadata)) 00099 for (j=0; j<m->count; j++) { 00100 if (!strcasecmp(m->elems[j].key, "language")) 00101 av_strlcpy(ctx->streams[i]->language, m->elems[j].value, 4); 00102 if (!strcasecmp(m->elems[j].key, "filename")) { 00103 av_free(ctx->streams[i]->filename); 00104 ctx->streams[i]->filename= av_strdup(m->elems[j].value); 00105 } 00106 } 00107 } 00108 00109 00110 #define FILL_METADATA(s, key, value) { \ 00111 if (value && *value && !av_metadata_get(s->metadata, #key, NULL, 0)) \ 00112 av_metadata_set2(&s->metadata, #key, value, 0); \ 00113 } 00114 #define FILL_METADATA_STR(s, key) FILL_METADATA(s, key, s->key) 00115 #define FILL_METADATA_INT(s, key) { \ 00116 char number[10]; \ 00117 snprintf(number, sizeof(number), "%d", s->key); \ 00118 if(s->key) FILL_METADATA(s, key, number) } 00119 00120 void ff_metadata_mux_compat(AVFormatContext *ctx) 00121 { 00122 int i; 00123 00124 if (ctx->metadata && ctx->metadata->count > 0) 00125 return; 00126 00127 FILL_METADATA_STR(ctx, title); 00128 FILL_METADATA_STR(ctx, author); 00129 FILL_METADATA_STR(ctx, copyright); 00130 FILL_METADATA_STR(ctx, comment); 00131 FILL_METADATA_STR(ctx, album); 00132 FILL_METADATA_INT(ctx, year); 00133 FILL_METADATA_INT(ctx, track); 00134 FILL_METADATA_STR(ctx, genre); 00135 for (i=0; i<ctx->nb_chapters; i++) 00136 FILL_METADATA_STR(ctx->chapters[i], title); 00137 for (i=0; i<ctx->nb_programs; i++) { 00138 FILL_METADATA_STR(ctx->programs[i], name); 00139 FILL_METADATA_STR(ctx->programs[i], provider_name); 00140 } 00141 for (i=0; i<ctx->nb_streams; i++) { 00142 FILL_METADATA_STR(ctx->streams[i], language); 00143 FILL_METADATA_STR(ctx->streams[i], filename); 00144 } 00145 } 00146 00147 #endif /* LIBAVFORMAT_VERSION_MAJOR < 53 */