[linux-audio-dev] ladspa.h.diff

the attached patch proves that LADSPA can be extended without breaking binary compatibility. i've compiled plugins against a patched ladspa.h and run them in hosts compiled against ladspa.h version 1.1 without experiencing any problems. also attached is a short test program that demonstrates how the extensions provided by the patch can be put to use. to demonstrate various possibilities and their relative ease of use, the patch implements the following extensions: hints: * connect_port (NULL) is ok hint member extensions to the descriptor: * Version (major, minor) * Latency * char ** PortUnits * LADSPA_Data * DefaultValues * LADSPA_PortValueEnum ** PortValueEnum the PortValueEnum is a structure having a char * Label and LADSPA_Data Value member associating a value with a label. this arrangement is deemed to suit integer enumerations as well as arbitrary association of values with a label. while the patch follows the general style of the original ladspa header, more sophistication would probably need to go into it for a production version, especially into the comments describing the extended version mechanism and members. vriendelijk, tim