public void Execute()
{
/*
* 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
*/
BackendPrograms mplayerLocation = new BackendPrograms(mplayerPath);
int audio = 0;
int video = 0;
int nframes = 1;
int minimum_audio = 10000;
_AudioList = new List <int> ();
_AudioTracks = new List <AudioTrackInfo> ();
_SubtitleList = new List <SubtitlesInfo> ();
// if CHECK_AUDIO is TRUE, we just check if it's an audio file
//if check_audio:
// nframes=0
//else:
// nframes=1
using (var handle = new System.Diagnostics.Process()) {
handle.StartInfo.UseShellExecute = false;
handle.StartInfo.CreateNoWindow = true;
handle.StartInfo.RedirectStandardOutput = true;
handle.StartInfo.RedirectStandardError = true;
handle.StartInfo.FileName = mplayerLocation.MPlayer;
handle.StartInfo.Arguments = string.Format("-loop 1 -identify -ao null -vo null -frames 0 {0} \"{1}\"", nframes.ToString(), filePath);
handle.Start();
string line = "";
StringReader strReader = new StringReader(handle.StandardOutput.ReadToEnd());
while ((line = strReader.ReadLine()) != null) //while (handle.HasExited == false)
{
if (line.Trim() == "")
{
continue;
}
int position = line.IndexOf("ID_");
if (position == -1)
{
continue;
}
line = line.Substring(position);
if (line.StartsWith("ID_VIDEO_BITRATE"))
{
_VideoBitrate = Globals.IntParse(line.Substring(17)) / 1000; // kilobits per second
}
else if (line.StartsWith("ID_VIDEO_WIDTH"))
{
_Width = Globals.IntParse(line.Substring(15));
}
else if (line.StartsWith("ID_VIDEO_HEIGHT"))
{
_Height = Globals.IntParse(line.Substring(16));
}
else if (line.StartsWith("ID_VIDEO_ASPECT"))
{
_AspectRatio = Globals.FloatParse(line.Substring(16));
}
else if (line.StartsWith("ID_VIDEO_FPS"))
{
_fps = (int)Globals.FloatParse(line.Substring(13));
}
else if (line.StartsWith("ID_AUDIO_BITRATE"))
{
_AudioBitrate = Globals.IntParse(line.Substring(17)) / 1000; // kilobits per second
}
else if (line.StartsWith("ID_AUDIO_RATE"))
{
_AudioRate = Globals.IntParse(line.Substring(14));
}
else if (line.StartsWith("ID_LENGTH"))
{
_Length = (int)Globals.FloatParse(line.Substring(10));
}
else if (line.StartsWith("ID_VIDEO_ID"))
{
video += 1;
_Video = true;
}
else if (line.StartsWith("ID_AUDIO_ID"))
{
audio += 1;
_Audio = true;
int audio_track = Globals.IntParse(line.Substring(12));
if (minimum_audio > audio_track)
{
minimum_audio = audio_track;
}
_AudioList.Add(audio_track);
AudioTrackInfo info = new AudioTrackInfo();
info.ID = audio_track;
_AudioTracks.Add(info);
}
else if (line.StartsWith("ID_AID_") && line.Substring(9, 4) == "LANG")
{
if (_AudioTracks.Count > 0)
{
string value = line.Substring(14);
_AudioTracks [_AudioTracks.Count - 1].Language = value;
}
}
else if (line.StartsWith("ID_AID_") && line.Substring(9, 4) == "NAME")
{
if (_AudioTracks.Count > 0)
{
string value = line.Substring(14);
_AudioTracks [_AudioTracks.Count - 1].Name = value;
}
}
else if (line.StartsWith("ID_SUBTITLE_ID"))
{
int value = Globals.IntParse(line.Substring(15));
SubtitlesInfo info = new SubtitlesInfo();
info.ID = value;
_SubtitleList.Add(info);
}
else if (line.StartsWith("ID_SID_") && line.Substring(9, 4) == "LANG")
{
if (_SubtitleList.Count > 0)
{
string value = line.Substring(14);
_SubtitleList [_SubtitleList.Count - 1].Language = value;
}
}
else if (line.StartsWith("ID_SID_") && line.Substring(9, 4) == "NAME")
{
if (_SubtitleList.Count > 0)
{
string value = line.Substring(14);
_SubtitleList [_SubtitleList.Count - 1].Name = value;
}
}
}
handle.WaitForExit();
handle.Close();
}
if (_AspectRatio == 0.0)
{
_AspectRatio = ((float)_Width / (float)_Height);
if (_AspectRatio <= 1.5)
{
_AspectRatio = (ScreenAspectRatio.FourThree);
}
}
}
/// <summary>
///
/// </summary>
/// <param name="filePath"></param>
/// <param name="mplayerPath">If mplayerPath is left empty it will search for mplayer.exe in
/// "current directory\backend\mplayer.exe" on windows and mplayer in the path on linux.</param>
public Discover(string filePath, string mplayerPath)
{
/*
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
*/
BackendPrograms mplayerLocation = new BackendPrograms(mplayerPath);
int audio = 0;
int video = 0;
int nframes = 1;
int minimum_audio = 10000;
_AudioList = new List<int>();
_AudioTracks = new List<AudioTrackInfo>();
_SubtitleList = new List<SubtitlesInfo>();
// if CHECK_AUDIO is TRUE, we just check if it's an audio file
//if check_audio:
// nframes=0
//else:
// nframes=1
System.Diagnostics.Process handle = new System.Diagnostics.Process();
handle.StartInfo.UseShellExecute = false;
handle.StartInfo.CreateNoWindow = true;
handle.StartInfo.RedirectStandardOutput = true;
handle.StartInfo.RedirectStandardError = true;
handle.StartInfo.FileName = mplayerLocation.MPlayer;
handle.StartInfo.Arguments = string.Format("-loop 1 -identify -ao null -vo null -frames 0 {0} \"{1}\"", nframes.ToString(), filePath);
handle.Start();
string line = "";
StringReader strReader = new StringReader(handle.StandardOutput.ReadToEnd());
while ((line = strReader.ReadLine()) != null)
//while (handle.HasExited == false)
{
if (line.Trim() == "")
{
continue;
}
int position = line.IndexOf("ID_");
if (position == -1)
{
continue;
}
line = line.Substring(position);
if (line.StartsWith("ID_VIDEO_BITRATE"))
{
_VideoBitrate = Globals.IntParse(line.Substring(17)) / 1000; // kilobits per second
}
else if (line.StartsWith("ID_VIDEO_WIDTH"))
{
_Width = Globals.IntParse(line.Substring(15));
}
else if (line.StartsWith("ID_VIDEO_HEIGHT"))
{
_Height = Globals.IntParse(line.Substring(16));
}
else if (line.StartsWith("ID_VIDEO_ASPECT"))
{
_AspectRatio = Globals.FloatParse(line.Substring(16));
}
else if (line.StartsWith("ID_VIDEO_FPS"))
{
_fps = (int)Globals.FloatParse(line.Substring(13));
}
else if (line.StartsWith("ID_AUDIO_BITRATE"))
{
_AudioBitrate = Globals.IntParse(line.Substring(17)) / 1000; // kilobits per second
}
else if (line.StartsWith("ID_AUDIO_RATE"))
{
_AudioRate = Globals.IntParse(line.Substring(14));
}
else if (line.StartsWith("ID_LENGTH"))
{
_Length = (int)Globals.FloatParse(line.Substring(10));
}
else if (line.StartsWith("ID_VIDEO_ID"))
{
video += 1;
_Video = true;
}
else if (line.StartsWith("ID_AUDIO_ID"))
{
audio += 1;
_Audio = true;
int audio_track = Globals.IntParse(line.Substring(12));
if (minimum_audio > audio_track)
{
minimum_audio = audio_track;
}
_AudioList.Add(audio_track);
AudioTrackInfo info = new AudioTrackInfo();
info.ID = audio_track;
_AudioTracks.Add(info);
}
else if (line.StartsWith("ID_AID_") && line.Substring(9, 4) == "LANG")
{
if (_AudioTracks.Count > 0)
{
string value = line.Substring(14);
_AudioTracks[_AudioTracks.Count - 1].Language = value;
}
}
else if (line.StartsWith("ID_AID_") && line.Substring(9, 4) == "NAME")
{
if (_AudioTracks.Count > 0)
{
string value = line.Substring(14);
_AudioTracks[_AudioTracks.Count-1].Name = value;
}
}
else if (line.StartsWith("ID_SUBTITLE_ID"))
{
int value = Globals.IntParse(line.Substring(15));
SubtitlesInfo info = new SubtitlesInfo();
info.ID = value;
_SubtitleList.Add(info);
}
else if (line.StartsWith("ID_SID_") && line.Substring(9, 4) == "LANG")
{
if (_SubtitleList.Count > 0)
{
string value = line.Substring(14);
_SubtitleList[_SubtitleList.Count - 1].Language = value;
}
}
else if (line.StartsWith("ID_SID_") && line.Substring(9, 4) == "NAME")
{
if (_SubtitleList.Count > 0)
{
string value = line.Substring(14);
_SubtitleList[_SubtitleList.Count - 1].Name = value;
}
}
}
handle.WaitForExit();
handle.Close();
if (_AspectRatio == 0.0)
{
_AspectRatio = ((float)_Width / (float)_Height);
if (_AspectRatio <= 1.5)
{
_AspectRatio = (ScreenAspectRatio.FourThree);
}
}
}
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);
}
}
}
