public static MediaTrackInfo ToMediaInfo(this libvlc_media_track_info_t tInfo)
{
MediaTrackInfo mti = new MediaTrackInfo();
mti.Channels = tInfo.audio.i_channels;
mti.Codec = tInfo.i_codec;
mti.Height = tInfo.video.i_width;
mti.Id = tInfo.i_id;
mti.Level = tInfo.i_level;
mti.Profile = tInfo.i_profile;
mti.Rate = tInfo.audio.i_rate;
mti.Width = tInfo.video.i_width;
return(mti);
}
/// <summary>
/// 获取媒体的基本流的描述,注意,在调用该方法之前你需要首先调用 <see cref="ParseMedia"/> 方法,或者至少播放一次.
/// 否则,你将的得到一个空数组
/// </summary>
/// <returns>一个 <see cref="MediaTrackInfo"/> 数组</returns>
public MediaTrackInfo[] GetTrackInfo()
{
IntPtr pointer;
var count = _getTracksInfoFunction.Delegate(InstancePointer, out pointer);
var result = new MediaTrackInfo[count];
var temp = pointer;
for (var i = 0; i < count; i++)
{
result[i] = (MediaTrackInfo)Marshal.PtrToStructure(temp, typeof(MediaTrackInfo));
temp = (IntPtr)((int)temp + Marshal.SizeOf(typeof(MediaTrackInfo)));
}
Vlc.Free(pointer);
return(result);
}