Files
mediadevices/pkg/avfoundation/avfoundation_callback_darwin.go
Markus b5b0653697 Fixes avfoundation panic when using NV12 frame (#302)
* Fixes frame.FormatI420 in avfoundation

* Fixes avfoundation: frame size

which causes panic when using NV12

* avfoundation: uses CVPixelBufferGetDataSize() as frame buffer size

frame: fix frame size checking for YUY2, UYVY

* add camera_darwin_test
2021-02-21 12:13:04 -08:00

55 lines
769 B
Go

package avfoundation
import "C"
import (
"sync"
"unsafe"
)
var mu sync.Mutex
var nextID handleID
type dataCb func(data []byte)
var handles = make(map[handleID]dataCb)
type handleID int
//export onData
func onData(userData unsafe.Pointer, buf unsafe.Pointer, length C.int) {
handleNum := (*C.int)(userData)
cb, ok := lookup(handleID(*handleNum))
if ok {
data := C.GoBytes(buf, length)
cb(data)
}
}
func register(fn dataCb) handleID {
mu.Lock()
defer mu.Unlock()
nextID++
for handles[nextID] != nil {
nextID++
}
handles[nextID] = fn
return nextID
}
func lookup(i handleID) (cb dataCb, ok bool) {
mu.Lock()
defer mu.Unlock()
cb, ok = handles[i]
return
}
func unregister(i handleID) {
mu.Lock()
defer mu.Unlock()
delete(handles, i)
}