S.O.N.G/goborator
S.O.N.G/goborator
3
0
Fork 0
Code Issues Pull requests Releases Activity

Optimized batch callback with results from C

Browse source
This commit is contained in:
DataHoarder 2022-01-30 15:30:07 +01:00
parent 837c1db011
commit b0d46ec375
1 changed files with 13 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

17
goborator.go
View file

@ -4,9 +4,9 @@ package goborator
#cgo pkg-config: cgaborator
#include <cgaborator.h>
void cgoCallback(uintptr_t callback_data, float* data, int size);
void cgoCallback(uintptr_t callback_data, float* data, size_t size, size_t slice_size);
typedef void (*gaborator_transform_callback)(uintptr_t callback_data, float* data, int size);
typedef void (*gaborator_transform_callback)(uintptr_t callback_data, float* data, size_t size, size_t slice_size);
*/
import "C"
import (
@ -100,6 +100,12 @@ func (g *Gaborator) GaborTransform(source chan float32) (channel chan []float32)
}
}
//finish
if len(audioData) > 0 {
err := g.Process(audioData)
if err != nil {
log.Panic(err)
}
}
err := g.Process(nil)
if err != nil {
log.Panic(err)
@ -151,8 +157,11 @@ func (g *Gaborator) analyze(block []float32) {
}
//export cgoCallback
func cgoCallback(ptr C.uintptr_t, data *C.float, size C.int) {
func cgoCallback(ptr C.uintptr_t, data *C.float, size, sliceSize C.size_t) {
buf := make([]float32, size)
channel := cgo.Handle(ptr).Value().(chan []float32)
copy(buf, unsafe.Slice((*float32)(data), int(size)))
cgo.Handle(ptr).Value().(chan []float32) <- buf
for i := 0; i < int(size); i += int(sliceSize) {
channel <- buf[i : i+int(sliceSize)]
}
}