[LAD] LV2 format stuff

Steve Harris steve at plugin.org.uk
Wed Nov 14 15:53:51 UTC 2007

On 14 Nov 2007, at 15:26, David Olofson wrote:

> On Wednesday 14 November 2007, Krzysztof Foltman wrote:
>> David Olofson wrote:
>>> I would think that users might want some way of "upgrading" their
>>> project files to use new plugin versions without just manually
>>> ripping out and replacing plugins, but even without some API help,
>>> I'd rather not see hosts trying to do this automatically...
>> Well, a common solution is to store plugin version identifier (it
>> could even be a sequence number assigned by plugin author) in the
>> song. Then, the plugin is able to convert at least the current
>> parameter values (but not, say, automation tracks) on song load.
>> It doesn't solve *all* the compatibility problems, but can solve the
>> most immediate one, I think.
> Provided plugins are identified by URIs, and same URI implies 100%
> compatibility, how do you actually find the new version of the
> plugin?
> Then again, in that case, we're really talking about a brand new
> plugin, but it seems to me that there is some useful grayzone here;
> plugins that are mostly compatible with their predecessors. New major
> versions, if you like.
> Provide a version history in the form of an array of URIs, so hosts
> can find and deal with this if desired?

Yeah, that makes a lot of sense.

- Steve

More information about the Linux-audio-dev mailing list