Golang C.gint64函数代码示例

// Seek() is a wrapper around gst_element_seek().
func (v *Element) Seek(rate float64, format Format, flags SeekFlags, startType SeekType, start int64, stopType SeekType, stop int64) bool {
	c := C.gst_element_seek(v.native(),
		C.gdouble(rate),
		C.GstFormat(format),
		C.GstSeekFlags(flags),
		C.GstSeekType(startType),
		C.gint64(start),
		C.GstSeekType(stopType),
		C.gint64(stop))
	return gobool(c)
}

// Set value to i
func (v *Value) Set(i interface{}) {
	if vg, ok := i.(ValueGetter); ok {
		vg.Value().Copy(v)
		return
	}
	// Other types
	r := reflect.ValueOf(i)
	switch r.Kind() {
	case reflect.Invalid:
		C.g_value_reset(v.g())

	case reflect.Bool:
		C.g_value_set_boolean(v.g(), gBoolean(r.Bool()))

	case reflect.Int:
		C.g_value_set_long(v.g(), C.glong(i.(int)))

	case reflect.Int8:
		C.g_value_set_schar(v.g(), C.gint8(i.(int8)))

	case reflect.Int32:
		C.g_value_set_int(v.g(), C.gint(i.(int32)))

	case reflect.Int64:
		C.g_value_set_int64(v.g(), C.gint64(i.(int64)))

	case reflect.Uint:
		C.g_value_set_ulong(v.g(), C.gulong(i.(uint)))

	case reflect.Uint8:
		C.g_value_set_uchar(v.g(), C.guchar(i.(uint8)))

	case reflect.Uint32:
		C.g_value_set_uint(v.g(), C.guint(i.(uint32)))

	case reflect.Uint64:
		C.g_value_set_uint64(v.g(), C.guint64(i.(uint64)))

	case reflect.Float32:
		C.g_value_set_float(v.g(), C.gfloat(i.(float32)))

	case reflect.Float64:
		C.g_value_set_double(v.g(), C.gdouble(i.(float64)))

	case reflect.Ptr:
		C.g_value_set_pointer(v.g(), C.gpointer(r.Pointer()))

	case reflect.String:
		C.g_value_set_static_string(v.g(), (*C.gchar)(C.CString(r.String())))

	default:
		panic("Can't represent Go value in Glib type system.")
	}
}

//-----------------------------------------------------------------------
// GValue
//-----------------------------------------------------------------------
func GValueFromNative(value interface{}) *C.GValue {
	var gv *C.GValue

	if _, ok := value.(WrappedObject); ok {
		value = value.(WrappedObject).GetInternalValue()
	}
	if _, ok := value.(GObject); ok {
		value = value.(GObject).Object
	}
	if _, ok := value.(GValue); ok {
		value = value.(GValue).Value
	}

	switch value.(type) {
	case bool:
		gv = C.init_gvalue_bool(gbool(value.(bool)))
		break
	case byte:
		gv = C.init_gvalue_byte(C.guchar(value.(byte)))
		break
	case int:
		gv = C.init_gvalue_int(C.gint(value.(int)))
		break
	case uint:
		gv = C.init_gvalue_uint(C.guint(value.(uint)))
		break
	case int64:
		gv = C.init_gvalue_int64(C.gint64(value.(int64)))
		break
	case float32:
		gv = C.init_gvalue_double(C.gdouble(value.(float32)))
		break
	case float64:
		gv = C.init_gvalue_double(C.gdouble(value.(float64)))
		break
	case string:
		{
			pval := C.CString(value.(string))
			defer C.free_string(pval)
			gv = C.init_gvalue_string(C.to_gcharptr(pval))
		}
		break
	default:
		//gv = C.init_gvalue_pointer(C.gpointer(unsafe.Pointer(&value)));
		break
	}
	return gv
}

// SeekSimple() is a wrapper around gst_element_seek_simple().
func (v *Element) SeekSimple(format Format, flags SeekFlags, pos int64) bool {
	c := C.gst_element_seek_simple(v.native(), C.GstFormat(format), C.GstSeekFlags(flags), C.gint64(pos))
	return gobool(c)
}

// pointerVal attempts to return an unsafe.Pointer for value.
// Not all types are understood, in which case a nil Pointer
// is returned.
func pointerVal(value interface{}) unsafe.Pointer {
	var p unsafe.Pointer
	switch v := value.(type) {
	case bool:
		c := gbool(v)
		p = unsafe.Pointer(&c)

	case int8:
		c := C.gint8(v)
		p = unsafe.Pointer(&c)

	case int16:
		c := C.gint16(v)
		p = unsafe.Pointer(&c)

	case int32:
		c := C.gint32(v)
		p = unsafe.Pointer(&c)

	case int64:
		c := C.gint64(v)
		p = unsafe.Pointer(&c)

	case int:
		c := C.gint(v)
		p = unsafe.Pointer(&c)

	case uint8:
		c := C.guchar(v)
		p = unsafe.Pointer(&c)

	case uint16:
		c := C.guint16(v)
		p = unsafe.Pointer(&c)

	case uint32:
		c := C.guint32(v)
		p = unsafe.Pointer(&c)

	case uint64:
		c := C.guint64(v)
		p = unsafe.Pointer(&c)

	case uint:
		c := C.guint(v)
		p = unsafe.Pointer(&c)

	case uintptr:
		p = unsafe.Pointer(C.gpointer(v))

	case float32:
		c := C.gfloat(v)
		p = unsafe.Pointer(&c)

	case float64:
		c := C.gdouble(v)
		p = unsafe.Pointer(&c)

	case string:
		cstr := C.CString(v)
		defer C.free(unsafe.Pointer(cstr))
		p = unsafe.Pointer(cstr)

	default:
		if pv, ok := value.(unsafe.Pointer); ok {
			p = pv
		} else {
			val := reflect.ValueOf(value)
			switch val.Kind() {
			case reflect.Int, reflect.Int8, reflect.Int16,
				reflect.Int32, reflect.Int64:
				c := C.int(val.Int())
				p = unsafe.Pointer(&c)

			case reflect.Uintptr, reflect.Ptr, reflect.UnsafePointer:
				p = unsafe.Pointer(C.gpointer(val.Pointer()))
			}
		}
	}

	return p
}

// SetInt64 is a wrapper around g_value_set_int64().
func (v *Value) SetInt64(val int64) {
	C.g_value_set_int64(v.native(), C.gint64(val))
}

func GIdleAddFull(priority int, callback interface{}, data ...interface{}) uint {
	cl, id := gobject.CreateCustomClosure(callback, data...)
	_closures[id] = cl
	return uint(C._g_idle_add_full(C.gint(priority), C.gint64(id)))
}

// Set() is a wrapper around g_object_set().  However, unlike
// g_object_set(), this function only sets one name value pair.  Make
// multiple calls to this function to set multiple properties.
func (v *Object) Set(name string, value interface{}) error {
	cstr := C.CString(name)
	defer C.free(unsafe.Pointer(cstr))

	if _, ok := value.(Object); ok {
		value = value.(Object).GObject
	}

	var p unsafe.Pointer = nil
	switch value.(type) {
	case bool:
		c := gbool(value.(bool))
		p = unsafe.Pointer(&c)
	case int8:
		c := C.gint8(value.(int8))
		p = unsafe.Pointer(&c)
	case int16:
		c := C.gint16(value.(int16))
		p = unsafe.Pointer(&c)
	case int32:
		c := C.gint32(value.(int32))
		p = unsafe.Pointer(&c)
	case int64:
		c := C.gint64(value.(int64))
		p = unsafe.Pointer(&c)
	case int:
		c := C.gint(value.(int))
		p = unsafe.Pointer(&c)
	case uint8:
		c := C.guchar(value.(uint8))
		p = unsafe.Pointer(&c)
	case uint16:
		c := C.guint16(value.(uint16))
		p = unsafe.Pointer(&c)
	case uint32:
		c := C.guint32(value.(uint32))
		p = unsafe.Pointer(&c)
	case uint64:
		c := C.guint64(value.(uint64))
		p = unsafe.Pointer(&c)
	case uint:
		c := C.guint(value.(uint))
		p = unsafe.Pointer(&c)
	case uintptr:
		p = unsafe.Pointer(C.gpointer(value.(uintptr)))
	case float32:
		c := C.gfloat(value.(float32))
		p = unsafe.Pointer(&c)
	case float64:
		c := C.gdouble(value.(float64))
		p = unsafe.Pointer(&c)
	case string:
		cstr := C.CString(value.(string))
		defer C.free(unsafe.Pointer(cstr))
		p = unsafe.Pointer(cstr)
	default:
		if pv, ok := value.(unsafe.Pointer); ok {
			p = pv
		} else {
			// Constants with separate types are not type asserted
			// above, so do a runtime check here instead.
			val := reflect.ValueOf(value)
			switch val.Kind() {
			case reflect.Int, reflect.Int8, reflect.Int16,
				reflect.Int32, reflect.Int64:
				c := C.int(val.Int())
				p = unsafe.Pointer(&c)
			case reflect.Uintptr:
				p = unsafe.Pointer(C.gpointer(val.Pointer()))
			}
		}
	}
	// Can't call g_object_set() as it uses a variable arg list, use a
	// wrapper instead
	if p != nil {
		C._g_object_set_one(C.gpointer(v.GObject), (*C.gchar)(cstr), p)
		return nil
	} else {
		return errors.New("Unable to perform type conversion")
	}
}

func GTimeoutAddSecondsFull(priority int, interval uint, callback interface{}, data ...interface{}) uint {
	cl, id := gobject.CreateCustomClosure(callback, data...)
	_closures[id] = cl
	return uint(C._g_timeout_add_seconds_full(C.gint(priority), C.guint(interval), C.gint64(id)))
}

func GlibInt64(i int64) C.gint64 {
	return C.gint64(i)
}

//.........这里部分代码省略.........
							C.set_path(unsafe.Pointer(pipeline), v2)
							GFree(unsafe.Pointer(v2))
							C.media_ready(unsafe.Pointer(pipeline))
							C.media_play(unsafe.Pointer(pipeline))
						} else {
							lb = false
							g_isQuit = true
						}
					}
					//C.g_main_loop_quit(loop)
				case 'p':
					switch g_play_style {
					case PLAY_STYLE_SINGLE:
						// do nothing ???
					case PLAY_STYLE_ORDER:
						fallthrough
					case PLAY_STYLE_SHUFFLE:

						C.media_stop(unsafe.Pointer(pipeline))
						if e != start {
							e = e.Prev()
							fpath, ok := e.Value.(string)
							if ok {
								v2 := GString(fpath)
								C.set_path(unsafe.Pointer(pipeline), v2)
								GFree(unsafe.Pointer(v2))
								C.media_ready(unsafe.Pointer(pipeline))
								C.media_play(unsafe.Pointer(pipeline))
							} else {
								lb = false
								g_isQuit = true
							}
						} else {
							lb = false
							g_isQuit = true
						}
					case PLAY_STYLE_SLOOP:
						C.media_stop(unsafe.Pointer(pipeline))
						fpath, ok := e.Value.(string)
						if ok {
							v2 := GString(fpath)
							C.set_path(unsafe.Pointer(pipeline), v2)
							GFree(unsafe.Pointer(v2))
							C.media_ready(unsafe.Pointer(pipeline))
							C.media_play(unsafe.Pointer(pipeline))
						}
					case PLAY_STYLE_ALOOP:
						C.media_stop(unsafe.Pointer(pipeline))
						if e != start {
							e = e.Prev()
						} else {
							e = end
						}
						fpath, ok := e.Value.(string)
						if ok {
							v2 := GString(fpath)
							C.set_path(unsafe.Pointer(pipeline), v2)
							GFree(unsafe.Pointer(v2))
							C.media_ready(unsafe.Pointer(pipeline))
							C.media_play(unsafe.Pointer(pipeline))
						}
					}

				case 'q':
					lb = false
					g_isQuit = true
				case '+':
					g_volume_size++
					C.set_volume(unsafe.Pointer(pipeline), C.int(g_volume_size))
				case '-':
					g_volume_size--
					if g_volume_size < 0 {
						g_volume_size = 0
					}
					C.set_volume(unsafe.Pointer(pipeline), C.int(g_volume_size))
				case 't':
					C.media_seek(unsafe.Pointer(pipeline), C.gint64(5))

				}
			case vv0 := <-sig_out:
				if vv0 {
					C.g_main_loop_quit(loop)
					wg.Wait()
					g_wg.Done()
					g_wg.Wait()
					close(sig_out)
					os.Exit(0)
				}
			}
		}

	} else {
		// 路径非法
		return
	}

	C.g_main_loop_quit(loop)
	wg.Wait()

}

// g_value_set_int64
func (this *Value) SetInt(v int64) {
	C.g_value_set_int64(this.asC(), C.gint64(v))
}

func GInt64(val interface{}) *GValue {
	i := val.(int64)
	iv := C.gint64(i)
	return CreateCGValue(G_TYPE_INT64, unsafe.Pointer(&iv))
}