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2026-06-18

获取视频时长 - GetVideoDuration ​

函数简介 ​

获取视频时长。

接口名称 ​

GetVideoDuration

DLL调用 ​

c
double GetVideoDuration(int64_t instance, int64_t videoHandle);

参数说明 ​

参数名类型说明
instance长整数型OLAPlug对象的指针，由 CreateCOLAPlugInterFace 接口生成。
videoHandle长整数型视频句柄。

示例 ​

SDK 调用 ​

cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
double value = ola.GetVideoDuration(0);
csharp
using OLAPlug;

var ola = new OLAPlugServer();
double value = ola.GetVideoDuration(0);
python
from OLAPlugServer import OLAPlugServer

ola = OLAPlugServer()
value = ola.GetVideoDuration(0)
java
import com.olaplug.OLAPlugServer;

OLAPlugServer ola = new OLAPlugServer();
double value = ola.GetVideoDuration(0);
cpp
var ola = com("OlaPlug.OlaSoft")
var value = ola.GetVideoDuration(0)
vbscript
Set ola = CreateObject("OlaPlug.OlaSoft")
value = ola.GetVideoDuration(0)
text
.局部变量 ola, OLAPlug
ola.创建 ()
value ＝ ola.GetVideoDuration(0)
aardio
import OLAPlugServer;
var ola = OLAPlugServer();
var value = ola.GetVideoDuration(0);
text
变量 ola <类型 = OLAPlugServer>
ola = 新建 OLAPlugServer
双精度 value = ola.GetVideoDuration(0)
cpp
#include "OLAPlugServer.h"

OLAPlugServer ola;
double value = ola.GetVideoDuration(0);

原生 DLL 调用 ​

cpp
GetVideoDuration(instance, 0);
csharp
using System.Runtime.InteropServices;
using System.Text;

[DllImport("OLAPlug_x64.dll", CallingConvention = CallingConvention.StdCall)]
static extern int GetVideoDuration(long ola, int videoHandle);

GetVideoDuration(instance, 0);
python
from ctypes import CDLL, c_int, c_int64, create_string_buffer

ola = CDLL("OLAPlug_x64.dll")
ola.CreateCOLAPlugInterFace.restype = c_int64
ola.GetVideoDuration(instance, 0)

返回值 ​

返回值说明
（返回值）双精度浮点数：视频时长（秒），失败返回 0.0。