gstreamer/docs/random/ensonic/dparams.txt

$Id$

* cleanup of dparams
  * library "namespace"
    * even though it is long try to stick to the prefix "dparam" for the whole library
    * e.g. avoid namespace clashes with "dataprotocol" which is using "dp" as well :-(
    * use a new namespace "ctrl" for control
  * resolve g_return_if_fail() into GST_WARNING and return()
    in cases where the caller has to handle the problem
  * rename
    GST_TYPE_DPSMOOTH to GST_TYPE_DPARAM_SMOOTH
    GST_TYPE_DP_LININT to GST_TYPE_DPARAM_LININT
    there seems to be nobody using them, as they still look unfinished
  * move modes into extra modules
    dparam_mode_synchronous
    dparam_mode_asynchronous
    dparam_mode_disabled
  * split dparam manager api (like e.g. GConf does it)
    * plugin api : GstCtrlManagerServer
    * application api  : GstCtrlManagerClient
  * remove "value-changed" signal from DParam?
    * one can connect to e.g. "notify::value-double" as well
  * dparam update callback needs to pass more info
    * GstElement as the first arg
    * GstDPram as the second arg

* documentation
  * state of unitconvert
  * state of sychronous params
  * dpman_set/get_rate
    if element_sampling_rate is 44100 and dpman_rate is 22050, dparams are updated twice a second

* dparams ng
  * concept for global, voice params
    one plugin instance can repeate the processing for the same input, but with
    different parameter sets (sound synthesizers, effects)
  * based on gobject params, so that e.g. the GUI can connect to "notify:param"
    events and update the GUI
  * implement timelined dparams via queues
    * the queue contains dparams and timestamps
    * GST_DPARAM_DO_UPDATE() checks the head of the queue for events that are due now
      and sets the values