Original commit message from CVS:
Remove all config.h includes from header files, add it to each source file and remove duplicate config.h includes from several source files
Original commit message from CVS:
sinesrc:
- fixed timestamp calculation (again)
- renamed buffer_size to the less ambigious samples_per_buffer
demo_dparams:
- replaced clumsy g_object_set_property with g_object_set
- use volume element for volume (just for testing)