EasyPlayer播放器系列项目可以说是目前市面中一款非常开放的播放器项目,用户可以根据自己的需求调用接口或者进行开发,实用性强,稳定性也足够优越。
上一篇我们讲了《EasyPlayer-RTMP定制窗体开发》,对于其中OSD的功能仍然有可以继续完善的点,比如用户希望可以自己定义OSD内容的颜色。
默认的是红色字体,如下图:
接下来介绍下OSD实现的过程,就可以方便大家自己来修改叠加内容的位置、颜色等信息。
代码语言:javascript复制/// <summary>
/// 附加信息
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void AddScreenFontTSMenuItem_Click(object sender, EventArgs e)
{
int ret = -1;
var rect = new Rect { X = 10, Y = 10, Width = panel1.Width, Height = panel1.Height };
var panelSize = this.panel1.ClientSize;
PlayerSdk.EASY_PALYER_OSD fontInfo = new PlayerSdk.EASY_PALYER_OSD
{
alpha = 255,
size = 35,
color = (uint)ToArgb(Color.Red),
shadowcolor = (uint)ToArgb(Color.Black),
stOSD = XMLOperate.BYCSB,
rect = new PlayerSdk.tagRECT { left = (int)rect.X, top = (int)rect.Y, right = (int)rect.Width, bottom = (int)rect.Height }
};
var checkState = (sender as ToolStripMenuItem).CheckState;
if (checkState == CheckState.Unchecked)
{
ret = PlayerSdk.EasyPlayer_ShowOSD(channelID, fontInfo);
(sender as ToolStripMenuItem).CheckState = CheckState.Checked;
}
if (checkState == CheckState.Checked)
{
ret = PlayerSdk.EasyPlayer_ShowOSD(channelID, fontInfo, false);
(sender as ToolStripMenuItem).CheckState = CheckState.Unchecked;
}
}
OSD有定义一个结构体如下:color可以修改颜色,stOSD传参是需要显示的内容,tagRECT也是一个结构体,可以自己定义显示位置。
/// <summary>
/// OSD 信息集合
/// </summary>
[StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Ansi)]
public struct EASY_PALYER_OSD
{
[MarshalAs(UnmanagedType.ByValTStr, SizeConst = 1024)]
public string stOSD;
public uint alpha; //0-255
public uint color; //RGB(0xf9,0xf9,0xf9)
public uint shadowcolor; //RGB(0x4d,0x4d,0x4d) 全为0背景透明
public tagRECT rect; //OSD基于图像右上角显示区域
public int size; //just D3D Support
}
/// <summary>
/// 像素信息
/// </summary>
[StructLayoutAttribute(LayoutKind.Sequential)]
public struct tagRECT
{
public int left;
public int top;
public int right;
public int bottom;
}
我们将color赋值为 (uint)ToArgb(Color.Yellow),如下效果:
其他颜色也可以通过此种方式进行赋值。