add retval

zhangmeng

2021-05-25 177293afbc1635e87d82070abeb687974326f41a

 goffmpeg.go

@@ -209,14 +209,18 @@
}

// GetGBJpg Get GB28181 Jpg
func GetGBJpg(rtspURL string, maxTry int) []byte {
func GetGBJpg(rtspURL string, maxTry int) ([]byte, int) {
   rtsp := C.CString(rtspURL)
   defer C.free(unsafe.Pointer(rtsp))
   var jpgLen C.int

   pic := C.wrap_fn_get_gb28181_pic(unsafe.Pointer(libcffmpeg), rtsp, &jpgLen, C.int(maxTry))
   defer C.free(unsafe.Pointer(pic))
   var pic unsafe.Pointer
   ret := C.wrap_fn_get_gb28181_pic(unsafe.Pointer(libcffmpeg), rtsp, &pic, &jpgLen, C.int(maxTry))
   if ret <= 0 {
      return nil, int(ret)
   }
   defer C.free(pic)

   retJpg := C.GoBytes(unsafe.Pointer(pic), jpgLen)
   return retJpg
   return retJpg, int(ret)
}