Re: [mad-dev] python bindings to libid3tag

On Sunday, October 12, 2003, at 03:22 PM, Alastair Tse wrote:

I think the bindings are pretty complete except for id3_tag_render(). I don't understand how to tell how much buffer to give to render a tag or if it allocates the memory for you.

The way it works is like this: First call id3_tag_render() with a null buffer argument. It will return the maximum possible size of the rendered tag (without actually rendering yet). Then allocate your buffer using this size and pass it to the routine again, and this time the tag will be rendered in your buffer and the actual size returned. The actual size may be smaller than the original estimate, but it will never be larger.

Cheers,