return tag_start;
}
+static int string_is_ascii(const uint8_t *str)
+{
+ while (*str && *str >= 0x20 && *str <= 0x7e ) str++;
+ return !*str;
+}
+
int ff_ape_write_tag(AVFormatContext *s)
{
AVDictionaryEntry *e = NULL;
ffio_fill(s->pb, 0, 8); // reserved
while ((e = av_dict_get(s->metadata, "", e, AV_DICT_IGNORE_SUFFIX))) {
- int val_len = strlen(e->value);
+ int val_len;
+
+ if (!string_is_ascii(e->key)) {
+ av_log(s, AV_LOG_WARNING, "Non ASCII keys are not allowed\n");
+ continue;
+ }
+ val_len = strlen(e->value);
avio_wl32(s->pb, val_len); // value length
avio_wl32(s->pb, 0); // item flags
avio_put_str(s->pb, e->key); // key