gstreamer/ext/lv2/README

Gst-LV2 Quickstart

Dependencies:

Lilv 0.6.6 <http://drobilla.net/software/lilv/>


Features:

The plugin wrapper support the following plugin features:
http://lv2plug.in/ns/lv2core
http://lv2plug.in/ns/ext/event
http://lv2plug.in/ns/ext/port-groups

and these host features:
http://lv2plug.in/ns/ext/log
http://lv2plug.in/ns/ext/urid

Example Pipeline:

Requires swh-lv2 <http://plugin.org.uk/releases/>

gst-launch-1.0 -v filesrc location=/usr/share/sounds/login.wav ! wavparse ! audioconvert ! plugin-org-uk-swh-plugins-djFlanger ! audioconvert ! autoaudiosink
(A longer wav will be a better example)

gst-launch-1.0 plugin-org-uk-swh-plugins-analogueOsc num-buffers=100 wave=1 ! wavenc ! filesink location="/tmp/lv2.wav"

Requires calf <http://calf.sourceforge.net/>

GST_DEBUG="*:2,lv2:5"
gst-launch-1.0 calf-sourceforge-net-plugins-Monosynth event-in="C-3" ! autoaudiosink
gst-launch-1.0 calf-sourceforge-net-plugins-Monosynth event-in="C-3" name=ms ! autoaudiosink ms. ! fakesink
gst-launch-1.0 calf-sourceforge-net-plugins-Organ event-in="C-3" name=s ! interleave name=i ! autoaudiosink s. ! i.


TODO
* make filters gap-aware
* support more host features
  GST_DEBUG="lv2:4" GST_DEBUG_FILE=/tmp/gst.log gst-inspect lv2
  grep -o "needs host feature: .*$" /tmp/gst.log  | sort | uniq -c | sort -n

* example sources:
  http://svn.drobilla.net/lad/trunk/lilv/utils/lv2info.c
  http://svn.drobilla.net/lad/trunk/jalv/src/jalv.c
Add LV2 quick start README. 2009-05-30 15:18:21 +00:00			`Gst-LV2 Quickstart`

			`Dependencies:`

README: update to 1.0 and lilv 2016-04-01 19:24:34 +00:00			`Lilv 0.6.6 <http://drobilla.net/software/lilv/>`
Add LV2 quick start README. 2009-05-30 15:18:21 +00:00

lv2: add a source plugin Update the readme with a working example and list what feature are supported. 2016-05-12 17:52:06 +00:00			`Features:`

			`The plugin wrapper support the following plugin features:`
			`http://lv2plug.in/ns/lv2core`
lv2: generate enums from scalepoints Plugins can provide a set of named values for a control port. Ideally only those values are set for the property. Check if all scalepoints are integers and if so generate an enum type. 2016-05-16 05:05:43 +00:00			`http://lv2plug.in/ns/ext/event`
lv2: add a source plugin Update the readme with a working example and list what feature are supported. 2016-05-12 17:52:06 +00:00			`http://lv2plug.in/ns/ext/port-groups`

			`and these host features:`
lv2: implemnt the map-extension This is the most used one and at the same time easy to implement sing QGQuark. 2016-05-14 19:35:15 +00:00			`http://lv2plug.in/ns/ext/log`
			`http://lv2plug.in/ns/ext/urid`
lv2: add a source plugin Update the readme with a working example and list what feature are supported. 2016-05-12 17:52:06 +00:00
Add LV2 quick start README. 2009-05-30 15:18:21 +00:00			`Example Pipeline:`

			`Requires swh-lv2 <http://plugin.org.uk/releases/>`

README: update to 1.0 and lilv 2016-04-01 19:24:34 +00:00			`gst-launch-1.0 -v filesrc location=/usr/share/sounds/login.wav ! wavparse ! audioconvert ! plugin-org-uk-swh-plugins-djFlanger ! audioconvert ! autoaudiosink`
Add LV2 quick start README. 2009-05-30 15:18:21 +00:00			`(A longer wav will be a better example)`
lv2: shorter element names Cut off the protocol part from the uri. Also just g_Strdup, instead of printf the name. 2010-02-01 20:24:52 +00:00
lv2: add a source plugin Update the readme with a working example and list what feature are supported. 2016-05-12 17:52:06 +00:00			`gst-launch-1.0 plugin-org-uk-swh-plugins-analogueOsc num-buffers=100 wave=1 ! wavenc ! filesink location="/tmp/lv2.wav"`
lv2: shorter element names Cut off the protocol part from the uri. Also just g_Strdup, instead of printf the name. 2010-02-01 20:24:52 +00:00
			`Requires calf <http://calf.sourceforge.net/>`

README: update to 1.0 and lilv 2016-04-01 19:24:34 +00:00			`GST_DEBUG="*:2,lv2:5"`
			`gst-launch-1.0 calf-sourceforge-net-plugins-Monosynth event-in="C-3" ! autoaudiosink`
			`gst-launch-1.0 calf-sourceforge-net-plugins-Monosynth event-in="C-3" name=ms ! autoaudiosink ms. ! fakesink`
			`gst-launch-1.0 calf-sourceforge-net-plugins-Organ event-in="C-3" name=s ! interleave name=i ! autoaudiosink s. ! i.`
lv2: shorter element names Cut off the protocol part from the uri. Also just g_Strdup, instead of printf the name. 2010-02-01 20:24:52 +00:00
lv2: add a source plugin Update the readme with a working example and list what feature are supported. 2016-05-12 17:52:06 +00:00
			`TODO`
lv2: support for loading presets Detect if plugins can do presets. Lazily read a list of presets and add support for loading. 2016-06-15 20:22:58 +00:00			`* make filters gap-aware`
lv2: add a source plugin Update the readme with a working example and list what feature are supported. 2016-05-12 17:52:06 +00:00			`* support more host features`
lv2: implemnt the map-extension This is the most used one and at the same time easy to implement sing QGQuark. 2016-05-14 19:35:15 +00:00			`GST_DEBUG="lv2:4" GST_DEBUG_FILE=/tmp/gst.log gst-inspect lv2`
			`grep -o "needs host feature: .*$" /tmp/gst.log \| sort \| uniq -c \| sort -n`
lv2: add a source plugin Update the readme with a working example and list what feature are supported. 2016-05-12 17:52:06 +00:00
lv2: generate enums from scalepoints Plugins can provide a set of named values for a control port. Ideally only those values are set for the property. Check if all scalepoints are integers and if so generate an enum type. 2016-05-16 05:05:43 +00:00			`* example sources:`
lv2: add a source plugin Update the readme with a working example and list what feature are supported. 2016-05-12 17:52:06 +00:00			`http://svn.drobilla.net/lad/trunk/lilv/utils/lv2info.c`
			`http://svn.drobilla.net/lad/trunk/jalv/src/jalv.c`