#include "avio.h"
+struct AVFormatContext;
+
/*
* Public Metadata API.
}AVMetadataTag;
typedef struct AVMetadata AVMetadata;
+typedef struct AVMetadataConv AVMetadataConv;
/**
* Gets a metadata element with matching key.
int av_metadata_set(AVMetadata **pm, const char *key, const char *value);
/**
+ * Convert all the metadata sets from ctx according to the source and
+ * destination conversion tables.
+ * @param d_conv destination tags format conversion table
+ * @param s_conv source tags format conversion table
+ */
+void av_metadata_conv(struct AVFormatContext *ctx,const AVMetadataConv *d_conv,
+ const AVMetadataConv *s_conv);
+
+/**
* Frees all the memory allocated for an AVMetadata struct.
*/
void av_metadata_free(AVMetadata **m);
struct AVCodecTag;
-struct AVFormatContext;
-
/** This structure contains the data a format has to probe a file. */
typedef struct AVProbeData {
const char *filename;
enum CodecID subtitle_codec; /**< default subtitle codec */
+ AVMetadataConv *metadata_conv;
+
/* private fields */
struct AVOutputFormat *next;
} AVOutputFormat;
*/
int (*read_seek2)(struct AVFormatContext *s, int stream_index, int64_t min_ts, int64_t ts, int64_t max_ts, int flags);
+ AVMetadataConv *metadata_conv;
+
/* private fields */
struct AVInputFormat *next;
} AVInputFormat;
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+#include <strings.h>
+#include "avformat.h"
#include "metadata.h"
AVMetadataTag *
}
av_freep(pm);
}
+
+static void metadata_conv(AVMetadata **pm, const AVMetadataConv *d_conv,
+ const AVMetadataConv *s_conv)
+{
+ /* TODO: use binary search to look up the two conversion tables
+ if the tables are getting big enough that it would matter speed wise */
+ const AVMetadataConv *s_conv1 = s_conv, *d_conv1 = d_conv, *sc, *dc;
+ AVMetadataTag *mtag = NULL;
+ AVMetadata *dst = NULL;
+ const char *key, *key2;
+
+ while((mtag=av_metadata_get(*pm, "", mtag, AV_METADATA_IGNORE_SUFFIX))) {
+ key = key2 = mtag->key;
+ if (s_conv != d_conv) {
+ if (!s_conv)
+ s_conv1 = (const AVMetadataConv[2]){{key,key}};
+ for (sc=s_conv1; sc->native; sc++)
+ if (!strcasecmp(key, sc->native)) {
+ key2 = sc->generic;
+ break;
+ }
+ if (!d_conv)
+ d_conv1 = (const AVMetadataConv[2]){{key2,key2}};
+ for (dc=d_conv1; dc->native; dc++)
+ if (!strcasecmp(key2, dc->generic)) {
+ key = dc->native;
+ break;
+ }
+ }
+ av_metadata_set(&dst, key, mtag->value);
+ }
+ av_metadata_free(pm);
+ *pm = dst;
+}
+
+void av_metadata_conv(AVFormatContext *ctx, const AVMetadataConv *d_conv,
+ const AVMetadataConv *s_conv)
+{
+ int i;
+ metadata_conv(&ctx->metadata, d_conv, s_conv);
+ for (i=0; i<ctx->nb_streams ; i++)
+ metadata_conv(&ctx->streams [i]->metadata, d_conv, s_conv);
+ for (i=0; i<ctx->nb_chapters; i++)
+ metadata_conv(&ctx->chapters[i]->metadata, d_conv, s_conv);
+ for (i=0; i<ctx->nb_programs; i++)
+ metadata_conv(&ctx->programs[i]->metadata, d_conv, s_conv);
+}