tag/Id3Load: don't read again if we already have enough data

This commit is contained in:
Max Kellermann 2016-02-19 19:40:23 +01:00
parent 1d3b2baee7
commit 2ef8403bfa

View File

@ -72,6 +72,10 @@ tag_id3_read(FILE *stream, long offset, int whence)
if (tag_size <= 0) return nullptr;
/* Found a tag. Allocate a buffer and read it in. */
if (size_t(tag_size) <= query_buffer_size)
/* we have enough data already */
return UniqueId3Tag(id3_tag_parse(query_buffer, tag_size));
std::unique_ptr<id3_byte_t[]> tag_buffer(new id3_byte_t[tag_size]);
int tag_buffer_size = fill_buffer(tag_buffer.get(), tag_size,
stream, offset, whence);