+ switch (tag->tag) {
+ case M4AF_TAG_TRACK:
+ if (sscanf(data, "%u/%u", &m, &n) >= 1)
+ m4af_add_itmf_track_tag(m4af, m, n);
+ break;
+ case M4AF_TAG_DISK:
+ if (sscanf(data, "%u/%u", &m, &n) >= 1)
+ m4af_add_itmf_disk_tag(m4af, m, n);
+ break;
+ case M4AF_TAG_GENRE_ID3:
+ if (sscanf(data, "%u", &n) == 1)
+ m4af_add_itmf_genre_tag(m4af, n);
+ break;
+ case M4AF_TAG_TEMPO:
+ if (sscanf(data, "%u", &n) == 1)
+ m4af_add_itmf_int16_tag(m4af, tag->tag, n);
+ break;
+ case M4AF_TAG_COMPILATION:
+ case M4AF_FOURCC('a','k','I','D'):
+ case M4AF_FOURCC('h','d','v','d'):
+ case M4AF_FOURCC('p','c','s','t'):
+ case M4AF_FOURCC('p','g','a','p'):
+ case M4AF_FOURCC('r','t','n','g'):
+ case M4AF_FOURCC('s','t','i','k'):
+ if (sscanf(data, "%u", &n) == 1)
+ m4af_add_itmf_int8_tag(m4af, tag->tag, n);
+ break;
+ case M4AF_FOURCC('a','t','I','D'):
+ case M4AF_FOURCC('c','m','I','D'):
+ case M4AF_FOURCC('c','n','I','D'):
+ case M4AF_FOURCC('g','e','I','D'):
+ case M4AF_FOURCC('s','f','I','D'):
+ case M4AF_FOURCC('t','v','s','n'):
+ case M4AF_FOURCC('t','v','s','s'):
+ if (sscanf(data, "%u", &n) == 1)
+ m4af_add_itmf_int32_tag(m4af, tag->tag, n);
+ break;
+ case M4AF_FOURCC('p','l','I','D'):
+ {
+ int64_t qn;
+ if (sscanf(data, "%" SCNd64, &qn) == 1)
+ m4af_add_itmf_int64_tag(m4af, tag->tag, qn);
+ break;
+ }
+ case M4AF_TAG_ARTWORK:
+ {
+ int data_type = 0;
+ if (!memcmp(data, "GIF", 3))
+ data_type = M4AF_GIF;
+ else if (!memcmp(data, "\xff\xd8\xff", 3))
+ data_type = M4AF_JPEG;
+ else if (!memcmp(data, "\x89PNG", 4))
+ data_type = M4AF_PNG;
+ if (data_type)
+ m4af_add_itmf_short_tag(m4af, tag->tag, data_type,
+ data, data_size);
+ break;
+ }
+ case M4AF_FOURCC('-','-','-','-'):
+ {
+ char *u8 = aacenc_to_utf8(data);
+ m4af_add_itmf_long_tag(m4af, tag->name, u8);
+ free(u8);
+ break;