public void Execute()
{
// As work around can run mpv commandline and parse output
// mpv video_name.mp4 --vo null -ao null --frames 1 -v
/*
* Reads the values of the video (width, heigth, fps...) and stores them
* into file_values.
*
* Returns (False,AUDIO) if the file is not a video (with AUDIO the number
* of audio tracks)
*
* Returns (True,0) if the file is a right video file
*/
_mpv = new Mpv(libmpvPath);
// Must be set before initializeation
_mpv.SetOption("frames", MpvFormat.MPV_FORMAT_INT64, 148);
_mpv.Initialize();
_mpv.SetOption("wid", MpvFormat.MPV_FORMAT_INT64, -1);
_mpv.SetOption("vo", MpvFormat.MPV_FORMAT_STRING, "null");
_mpv.SetOption("ao", MpvFormat.MPV_FORMAT_STRING, "null");
_mpv.DoMpvCommand("loadfile", filePath);
// HACK: wait for video to load
System.Threading.Thread.Sleep(1000);
//_mpv.SetProperty ("pause", MpvFormat.MPV_FORMAT_STRING, "yes");
_Width = _mpv.GetPropertyInt("width");
_Height = _mpv.GetPropertyInt("height");
_AspectRatio = _mpv.GetPropertyFloat("video-aspect");
int bits = _mpv.GetPropertyInt("audio-bitrate");
//int bytes = Bits2Bytes (bits);
//int kb = Bytes2Kilobytes (bytes);
//_AudioBitrate = (int)Math.Round (bits / 1024m, 0);
_AudioBitrate = bits;
_AudioRate = _mpv.GetPropertyInt("audio-params/samplerate");
_Length = _mpv.GetPropertyInt("duration");
//_fps = _mpv.GetPropertyInt ("container-fps");
_fps = _mpv.GetPropertyInt("fps");
_mpv.TryGetPropertyInt("video-bitrate", out _VideoBitrate);
string videoFormat = _mpv.GetProperty("video-format");
if (!string.IsNullOrWhiteSpace(videoFormat))
{
_Video = true;
}
_AudioList = new List <int> ();
_AudioTracks = new List <AudioTrackInfo> ();
_SubtitleList = new List <SubtitlesInfo> ();
int trackCount = _mpv.GetPropertyInt("track-list/count");
foreach (int i in Enumerable.Range(0, trackCount))
{
string trackType = _mpv.GetProperty($"track-list/{i}/type");
int trackId = _mpv.GetPropertyInt($"track-list/{i}/id");
string name;
_mpv.TryGetProperty($"track-list/{i}/title", out name);
string language;
_mpv.TryGetProperty($"track-list/{i}/lang", out language);
if (trackType == "audio")
{
_AudioList.Add(trackId);
var info = new AudioTrackInfo()
{
ID = trackId,
Name = name,
Language = language
};
_AudioTracks.Add(info);
}
else if (trackType == "sub")
{
var info = new SubtitlesInfo()
{
ID = trackId,
Name = name,
Language = language
};
_SubtitleList.Add(info);
}
}
if (_AspectRatio == 0.0)
{
_AspectRatio = ((float)_Width / (float)_Height);
if (_AspectRatio <= 1.5)
{
_AspectRatio = (ScreenAspectRatio.FourThree);
}
}
}
// Sets in motions events to set this._totalTime. Is called as soon as the video starts.
private void LoadCurrentPlayingFileLength()
{
this._totalTime = (int)_mpv.GetPropertyFloat("duration");
}