ID3v2_ENCODING_UTF8 = 3,
};
+typedef struct ID3v2ExtraMeta {
+ const char *tag;
+ void *data;
+ struct ID3v2ExtraMeta *next;
+} ID3v2ExtraMeta;
+
+typedef struct ID3v2ExtraMetaGEOB {
+ uint32_t datasize;
+ uint8_t *mime_type;
+ uint8_t *file_name;
+ uint8_t *description;
+ uint8_t *data;
+} ID3v2ExtraMetaGEOB;
+
/**
* Detect ID3v2 Header.
* @param buf must be ID3v2_HEADER_SIZE byte long
- * @param magic magic bytes to identify the header, machine byte order.
+ * @param magic magic bytes to identify the header.
* If in doubt, use ID3v2_DEFAULT_MAGIC.
*/
int ff_id3v2_match(const uint8_t *buf, const char *magic);
int ff_id3v2_tag_len(const uint8_t *buf);
/**
- * Read an ID3v2 tag
+ * Read an ID3v2 tag (text tags only)
*/
void ff_id3v2_read(AVFormatContext *s, const char *magic);
+/**
+ * Read an ID3v2 tag, including supported extra metadata (currently only GEOB)
+ * @param extra_meta If not NULL, extra metadata is parsed into a list of
+ * ID3v2ExtraMeta structs and *extra_meta points to the head of the list
+ */
+void ff_id3v2_read_all(AVFormatContext *s, const char *magic, ID3v2ExtraMeta **extra_meta);
+
+/**
+ * Write an ID3v2 tag.
+ * @param id3v2_version Subversion of ID3v2; supported values are 3 and 4
+ * @param magic magic bytes to identify the header
+ * If in doubt, use ID3v2_DEFAULT_MAGIC.
+ */
+int ff_id3v2_write(struct AVFormatContext *s, int id3v2_version, const char *magic);
+
+/**
+ * Free memory allocated parsing special (non-text) metadata.
+ * @param extra_meta Pointer to a pointer to the head of a ID3v2ExtraMeta list, *extra_meta is set to NULL.
+ */
+void ff_id3v2_free_extra_meta(ID3v2ExtraMeta **extra_meta);
+
extern const AVMetadataConv ff_id3v2_34_metadata_conv[];
extern const AVMetadataConv ff_id3v2_4_metadata_conv[];
-extern const AVMetadataConv ff_id3v2_2_metadata_conv[];
/**
* A list of text information frames allowed in both ID3 v2.3 and v2.4