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Vamp::Plugins::process Lua bindings

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This commit is contained in:
Robin Gareus 2016-10-04 21:31:29 +02:00
parent 0d2ccdd39c
commit a51daedbe6
3 changed files with 28 additions and 2 deletions
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12
libs/ardour/ardour/lua_api.h
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@ -214,6 +214,18 @@ namespace ARDOUR { namespace LuaAPI {
bool initialized () const { return _initialized; }
/** process given array of audio-samples.
*
* This is a lua-binding for vamp:plugin():process ()
*
* @d audio-data, the vector must match the configured channel count
* and hold a complete buffer for every channel as set during
* plugin():initialise()
* @rt timestamp matching the provided buffer.
* @returns features extracted from that data (if the plugin is causal)
*/
::Vamp::Plugin::FeatureSet process (const std::vector<float*>& d, ::Vamp::RealTime rt);
private:
::Vamp::Plugin* _plugin;
float _sample_rate;

10
libs/ardour/lua_api.cc
View file

@ -629,3 +629,13 @@ LuaAPI::Vamp::analyze (boost::shared_ptr<ARDOUR::Readable> r, uint32_t channel,
delete [] data;
return rv;
}
::Vamp::Plugin::FeatureSet
LuaAPI::Vamp::process (const std::vector<float*>& d, ::Vamp::RealTime rt)
{
if (!_plugin || d.size() == 0) {
return ::Vamp::Plugin::FeatureSet ();
}
const float* const* bufs = &d[0];
return _plugin->process (bufs, rt);
}

8
libs/ardour/luabindings.cc
View file

@ -265,6 +265,10 @@ LuaBindings::stddef (lua_State* L)
// register float array (int32_t*)
.registerArray <int32_t> ("IntArray")
// std::vector<float*>
.beginStdVector <float*> ("FloatArrayVector")
.endClass ()
// TODO std::set
.endNamespace ();
}
@ -502,8 +506,7 @@ LuaBindings::common (lua_State* L)
.endNamespace () // Vamp::PluginBase
.deriveClass<Vamp::Plugin, Vamp::PluginBase> ("Plugin")
// TODO add wrapper std::vector<FloatArray>
.addFunction ("process", &Vamp::Plugin::process) // XXX unusable due to float * const *
//.addFunction ("process", &Vamp::Plugin::process) // unusable due to float*const* -> LuaAPI::Vamp::process
.addFunction ("getRemainingFeatures", &Vamp::Plugin::getRemainingFeatures)
.endClass ()
@ -1609,6 +1612,7 @@ LuaBindings::common (lua_State* L)
.addFunction ("analyze", &ARDOUR::LuaAPI::Vamp::analyze)
.addFunction ("reset", &ARDOUR::LuaAPI::Vamp::reset)
.addFunction ("initialize", &ARDOUR::LuaAPI::Vamp::initialize)
.addFunction ("process", &ARDOUR::LuaAPI::Vamp::process)
.endClass ()
.endNamespace () // end LuaAPI