/// <summary>
/// 抓图(支持多种格式)
/// </summary>
/// <param name="savePath">完整路径（bmp,png,jpg）</param>
/// <param name="width">抓图宽度</param>
/// <param name="height">抓图高度</param>
/// <returns></returns>
public int SnapShot(string savePath, uint width = 0, uint height = 0)
{
int result = -1;
if (libvlc_media_player_ != IntPtr.Zero)
{
IntPtr pathPtr = VLCUtil.StringToPtr(savePath);
result = VLCAPI.libvlc_video_take_snapshot(libvlc_media_player_, 0, pathPtr, width, height);
Marshal.FreeHGlobal(pathPtr);
}
return(result);
}
/// <summary>
/// 播放
/// </summary>
/// <param name="filePath"></param>
/// <param name="handle"></param>
/// <returns> true 成功 ,false 失败</returns>
public bool Play(string filePath, IntPtr handle)
{
bool flag = false;
if (libvlc_instance_ == IntPtr.Zero || libvlc_media_player_ == IntPtr.Zero)
{
return(flag);
}
this.SetRenderWindow((int)handle);
IntPtr pathPtr = VLCUtil.StringToPtr(filePath);
IntPtr libvlc_media;
if (UrlDiscern(filePath))
{
//从url取视频
libvlc_media = VLCAPI.libvlc_media_new_location(libvlc_instance_, pathPtr);
}
else
{
//从本地取视频
libvlc_media = VLCAPI.libvlc_media_new_path(libvlc_instance_, pathPtr);
}
Marshal.FreeHGlobal(pathPtr);
if (libvlc_media != IntPtr.Zero)
{
//取时长前必须调用
//VLCAPI.libvlc_media_parse(libvlc_media);
//duration_ = VLCAPI.libvlc_media_get_duration(libvlc_media) / 1000.0;
VLCAPI.libvlc_media_player_set_media(libvlc_media_player_, libvlc_media);
VLCAPI.libvlc_media_release(libvlc_media);
VLCAPI.libvlc_media_player_play(libvlc_media_player_);
flag = true;
}
return(flag);
}
//private double duration_;
public VLCPlayer()
{
//string plugin_arg = "--plugin-path=" + System.Environment.CurrentDirectory + "\\plugins\\";
//"--network-caching=300"减少网络延迟300秒
// "--no-snapshot-preview"
//"-I", "dummy", "--ignore-config", "--extraintf=logger",
string[] args = { "--verbose=2", "--network-caching=300", "--no-snapshot-preview", "--avcodec-hw=any" };
byte[][] argvbytes = new byte[args.Length][];
for (int i = 0; i < args.Length; i++)
{
argvbytes[i] = Encoding.UTF8.GetBytes(args[i]);
}
libvlc_instance_ = VLCAPI.libvlc_new(args.Length, VLCUtil.ReturnIntPtr(argvbytes, args.Length));
if (libvlc_instance_ != IntPtr.Zero)
{
libvlc_media_player_ = VLCAPI.libvlc_media_player_new(libvlc_instance_);
}
}
