mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-14 20:36:32 +00:00
c53989742b
Original commit message from CVS: * docs/random/ensonic/dynlink.txt: * docs/random/ensonic/interfaces.txt: * docs/random/ensonic/receipies.txt: Possible dynamic reconnection api, plus some type fixes the other two docs.
85 lines
3.1 KiB
Text
85 lines
3.1 KiB
Text
$Id$
|
|
|
|
* existing gstreamer interfaces
|
|
./gstreamer/gst/gsttaginterface.c
|
|
./gstreamer/gst/gstinterface.c
|
|
./gstreamer/gst/gsturi.c
|
|
./gst-plugins/gst-libs/gst/propertyprobe/propertyprobe.c
|
|
./gst-plugins/gst-libs/gst/mixer/mixer.c
|
|
./gst-plugins/gst-libs/gst/tuner/tuner.c
|
|
./gst-plugins/gst-libs/gst/xoverlay/xoverlay.c
|
|
./gst-plugins/gst-libs/gst/colorbalance/colorbalance.c
|
|
./gst-plugins/gst-libs/gst/navigation/navigation.c
|
|
* new general interfaces
|
|
* GST_TYPE_UI_HINT
|
|
- add hints to generate 'good' looking interfaces to elements
|
|
- API:
|
|
GList *get_group_list();
|
|
struct ui_hint_group {
|
|
gchar *label;
|
|
gachr *role;
|
|
GList *entries;
|
|
}
|
|
struct ui_hint_group_entry {
|
|
enum UiHintGroupEntryType type={PARAM,DPARAM};
|
|
gchar *name;
|
|
}
|
|
roles {
|
|
/* graphics */
|
|
"color_selection/rgb",
|
|
"color_selection/hsv",
|
|
"aspect_ratio",
|
|
/* audio */
|
|
"envelope/adsr",
|
|
}
|
|
- features
|
|
- grouping of parameters, each group has:
|
|
- a label: giving a title to the group
|
|
- a role:
|
|
- this can give the UI a hint about the purpose of the controls
|
|
- this only makes sense, if we dont make this a thousand templates
|
|
- a list of dparams or properties
|
|
- question
|
|
- should this be aware of instruments (voice-groups)
|
|
- no, instruments should auto-generate those
|
|
* GST_TYPE_QUALITY_VS_SPEED
|
|
- get the name of a property that can be used to switch between
|
|
- a fast version for e.g. realtime usage
|
|
- a slower version with higher precission that can be used for off-line
|
|
rendering
|
|
* new interfaces for audio applications
|
|
* GST_TYPE_MULTI_VOICE
|
|
- control interface for elements that support multiple voices (in one output-pad)
|
|
- API:
|
|
gulong number_of_voices;
|
|
void add_voice();
|
|
void remove_last_voice();
|
|
gulong get_number_of_voices();
|
|
- features
|
|
- plugin will initially have one voice and that one can not be deleted
|
|
* GST_TYPE_MUSIC_GENERATOR
|
|
- add hints so that application can use a element as an instrument
|
|
- API:
|
|
// param types
|
|
DParam *get_note_dparam();
|
|
GList *get_trigger_dparams();
|
|
// -- or
|
|
DParamType get_dparam_type(DParam *);
|
|
dparamtype = { NOTE, TRIGGER, OTHER }
|
|
// voices
|
|
char *get_number_of_voices_property();
|
|
GList *get_global_param_names();
|
|
GList *get_voice_param_names();
|
|
- features
|
|
- find out which params to use to play notes/trigger sounds
|
|
- these params will not appear in a control-ui
|
|
- notes involve a key to frequency translation
|
|
- find out if the element has a number_of_voices property
|
|
- if yes, we can find out about the max by looking at the gparamspec
|
|
- setting the property, adds/removes voices
|
|
- if the element supports it, it needs to:
|
|
- register voice-dparams as e.g. note_XXX, where XXX is the voice-number
|
|
- run the voice-loop in the chain/loop function
|
|
each voice processes the same input, if at all
|
|
the outputs of all voices are mixed together
|
|
|