/// <summary>
/// 获取已经显示的图片数
/// </summary>
/// <param name="libvlc_media_player"></param>
/// <returns></returns>
private int GetDisplayedPictures(libvlc_media_player_t libvlc_media_player)
{
libvlc_media_t media = IntPtr.Zero;
libvlc_media_stats_t media_stats = new libvlc_media_stats_t();
try
{
if (libvlc_media_player == IntPtr.Zero ||
libvlc_media_player == null)
{
return(0);
}
media = SafeNativeMethods.libvlc_media_player_get_media(libvlc_media_player);
if (media == IntPtr.Zero || media == null)
{
return(0);
}
if (1 == SafeNativeMethods.libvlc_media_get_stats(media, ref media_stats))
{
return(media_stats.i_displayed_pictures);
}
else
{
return(0);
}
}
catch (Exception)
{
return(0);
}
}
/// <summary>
/// 获取信息
/// </summary>
/// <param name="libvlc_media_player"></param>
/// <returns></returns>
private bool GetMedia(libvlc_media_player_t libvlc_media_player)
{
libvlc_media_t media = IntPtr.Zero;
try
{
if (libvlc_media_player == IntPtr.Zero ||
libvlc_media_player == null)
{
return(false);
}
media = SafeNativeMethods.libvlc_media_player_get_media(libvlc_media_player);
if (media == IntPtr.Zero || media == null)
{
return(false);
}
else
{
return(true);
}
}
catch (Exception)
{
return(false);
}
}
/// <summary>
/// 播放本地视频
/// </summary>
/// <param name="libvlc_instance"></param>
/// <param name="libvlc_media_player"></param>
/// <param name="url"></param>
/// <returns></returns>
private bool Local_Media_Play(libvlc_instance_t libvlc_instance, libvlc_media_player_t libvlc_media_player, string url)
{
IntPtr pMrl = IntPtr.Zero;
libvlc_media_t libvlc_media = IntPtr.Zero;
try
{
if (url == null ||
libvlc_instance == IntPtr.Zero ||
libvlc_instance == null ||
libvlc_media_player == IntPtr.Zero ||
libvlc_media_player == null)
{
return(false);
}
pMrl = StrToIntPtr(url);
if (pMrl == null || pMrl == IntPtr.Zero)
{
return(false);
}
//播放本地视频
libvlc_media = SafeNativeMethods.libvlc_media_new_path(libvlc_instance, pMrl);
if (libvlc_media == null || libvlc_media == IntPtr.Zero)
{
return(false);
}
//将Media绑定到播放器上
SafeNativeMethods.libvlc_media_player_set_media(libvlc_media_player, libvlc_media);
//释放libvlc_media资源
SafeNativeMethods.libvlc_media_release(libvlc_media);
libvlc_media = IntPtr.Zero;
if (0 != SafeNativeMethods.libvlc_media_player_play(libvlc_media_player))
{
return(false);
}
//休眠指定时间
Thread.Sleep(500);
return(true);
}
catch (Exception)
{
//释放libvlc_media资源
if (libvlc_media != IntPtr.Zero)
{
SafeNativeMethods.libvlc_media_release(libvlc_media);
}
libvlc_media = IntPtr.Zero;
return(false);
}
}
private bool NetWork_Media_Play(libvlc_instance_t libvlc_instance, libvlc_media_player_t libvlc_media_player, string url)
{
IntPtr pMrl = IntPtr.Zero;
libvlc_media_t libvlc_media = IntPtr.Zero;
try
{
if (url == null ||
libvlc_instance == IntPtr.Zero ||
libvlc_instance == null ||
libvlc_media_player == IntPtr.Zero ||
libvlc_media_player == null)
{
return(false);
}
pMrl = StrToIntPtr(url);
if (pMrl == null || pMrl == IntPtr.Zero)
{
return(false);
}
libvlc_media = SafeNativeMethods.libvlc_media_new_location(libvlc_instance, pMrl);
if (libvlc_media == null || libvlc_media == IntPtr.Zero)
{
return(false);
}
SafeNativeMethods.libvlc_media_player_set_media(libvlc_media_player, libvlc_media);
SafeNativeMethods.libvlc_media_release(libvlc_media);
libvlc_media = IntPtr.Zero;
if (0 != SafeNativeMethods.libvlc_media_player_play(libvlc_media_player))
{
return(false);
}
Thread.Sleep(500);
return(true);
}
catch (Exception)
{
if (libvlc_media != IntPtr.Zero)
{
SafeNativeMethods.libvlc_media_release(libvlc_media);
}
libvlc_media = IntPtr.Zero;
return(false);
}
}
/// <summary>
/// 录制网络媒体
/// </summary>
/// <param name="libvlc_instance">VLC 全局变量</param>
/// <param name="url">网络视频URL，支持http、rtp、udp等格式的URL播放</param>
/// <returns></returns>
public bool NetWork_Media_Save(libvlc_instance_t libvlc_instance, string url)
{
IntPtr pMrl = IntPtr.Zero;
libvlc_media_t libvlc_media = IntPtr.Zero;
try
{
if (url == null ||
libvlc_instance == IntPtr.Zero ||
libvlc_instance == null)
{
return(false);
}
pMrl = StrToIntPtr(url);
if (pMrl == null || pMrl == IntPtr.Zero)
{
return(false);
}
//播放网络文件
libvlc_media = SafeNativeMethods.libvlc_media_new_location(libvlc_instance, pMrl);
if (libvlc_media == null || libvlc_media == IntPtr.Zero)
{
return(false);
}
//释放libvlc_media资源
//SafeNativeMethods.libvlc_media_release(libvlc_media);
//libvlc_media = IntPtr.Zero;
//休眠指定时间
//Thread.Sleep(200);
return(true);
}
catch (Exception)
{
//释放libvlc_media资源
if (libvlc_media != IntPtr.Zero)
{
SafeNativeMethods.libvlc_media_release(libvlc_media);
}
libvlc_media = IntPtr.Zero;
return(false);
}
}
internal static extern int libvlc_media_get_stats(libvlc_media_t libvlc_media, ref libvlc_media_stats_t lib_vlc_media_stats);
internal static extern Int64 libvlc_media_get_duration(libvlc_media_t libvlc_media);
internal static extern void libvlc_media_parse(libvlc_media_t libvlc_media);
internal static extern void libvlc_media_player_set_media(libvlc_media_player_t libvlc_media_player, libvlc_media_t libvlc_media);
internal static extern libvlc_media_player_t libvlc_media_player_new_from_media(libvlc_media_t libvlc_media);
internal static extern void libvlc_media_release(libvlc_media_t libvlc_media_inst);
internal static extern void libvlc_media_add_option(libvlc_media_t p_md, String psz_option);
