public static Media Convert(string filename, IFile file)
{
if (file == null)
{
return(null);
}
try
{
lock (_lock)
{
Media m = new Media();
Part p = new Part();
Thread mediaInfoThread = new Thread(() =>
{
if (minstance == null)
{
minstance = new MediaInfoLib.MediaInfo();
}
if (minstance.Open(filename) == 0)
{
return; //it's a boolean response.
}
Stream VideoStream = null;
m.Duration = p.Duration = minstance.GetLong(StreamKind.General, 0, "Duration");
p.Size = minstance.GetLong(StreamKind.General, 0, "FileSize");
int brate = minstance.GetInt(StreamKind.General, 0, "BitRate");
if (brate != 0)
{
m.Bitrate = (int)Math.Round(brate / 1000F);
}
int chaptercount = minstance.GetInt(StreamKind.General, 0, "MenuCount");
m.Chaptered = chaptercount > 0;
int video_count = minstance.GetInt(StreamKind.General, 0, "VideoCount");
int audio_count = minstance.GetInt(StreamKind.General, 0, "AudioCount");
int text_count = minstance.GetInt(StreamKind.General, 0, "TextCount");
m.Container = p.Container = TranslateContainer(minstance.Get(StreamKind.General, 0, "Format"));
string codid = minstance.Get(StreamKind.General, 0, "CodecID");
if (!string.IsNullOrEmpty(codid) && (codid.Trim().ToLower() == "qt"))
{
m.Container = p.Container = "mov";
}
List <Stream> streams = new List <Stream>();
byte iidx = 0;
if (video_count > 0)
{
for (int x = 0; x < video_count; x++)
{
Stream s = TranslateVideoStream(minstance, x);
if (x == 0)
{
VideoStream = s;
m.Width = s.Width;
m.Height = s.Height;
if (m.Height != 0)
{
if (m.Width != 0)
{
m.VideoResolution = GetResolution(m.Width, m.Height);
m.AspectRatio = GetAspectRatio(m.Width, m.Height, s.PA);
}
}
if (s.FrameRate != 0)
{
float fr = System.Convert.ToSingle(s.FrameRate);
string frs = ((int)Math.Round(fr)).ToString(CultureInfo.InvariantCulture);
if (!string.IsNullOrEmpty(s.ScanType))
{
if (s.ScanType.ToLower().Contains("int"))
{
frs += "i";
}
else
{
frs += "p";
}
}
else
{
frs += "p";
}
if ((frs == "25p") || (frs == "25i"))
{
frs = "PAL";
}
else if ((frs == "30p") || (frs == "30i"))
{
frs = "NTSC";
}
m.VideoFrameRate = frs;
}
m.VideoCodec = string.IsNullOrEmpty(s.CodecID) ? s.Codec : s.CodecID;
if (m.Duration != 0 && s.Duration != 0)
{
if (s.Duration > m.Duration)
{
m.Duration = p.Duration = s.Duration;
}
}
if (video_count == 1)
{
s.Default = 0;
s.Forced = 0;
}
}
if (m.Container != "mkv")
{
s.Index = iidx;
iidx++;
}
streams.Add(s);
}
}
int totalsoundrate = 0;
if (audio_count > 0)
{
for (int x = 0; x < audio_count; x++)
{
Stream s = TranslateAudioStream(minstance, x);
if ((s.Codec == "adpcm") && (p.Container == "flv"))
{
s.Codec = "adpcm_swf";
}
if (x == 0)
{
m.AudioCodec = string.IsNullOrEmpty(s.CodecID) ? s.Codec : s.CodecID;
m.AudioChannels = s.Channels;
if (m.Duration != 0 && s.Duration != 0)
{
if (s.Duration > m.Duration)
{
m.Duration = p.Duration = s.Duration;
}
}
if (audio_count == 1)
{
s.Default = 0;
s.Forced = 0;
}
}
if (s.Bitrate != 0)
{
totalsoundrate += s.Bitrate;
}
if (m.Container != "mkv")
{
s.Index = iidx;
iidx++;
}
streams.Add(s);
}
}
if ((VideoStream != null) && VideoStream.Bitrate == 0 && m.Bitrate != 0)
{
VideoStream.Bitrate = m.Bitrate - totalsoundrate;
}
if (text_count > 0)
{
for (int x = 0; x < audio_count; x++)
{
Stream s = TranslateTextStream(minstance, x);
streams.Add(s);
if (text_count == 1)
{
s.Default = 0;
s.Forced = 0;
}
if (m.Container != "mkv")
{
s.Index = iidx;
iidx++;
}
}
}
m.Parts = new List <Part> {
p
};
bool over = false;
if (m.Container == "mkv")
{
byte val = byte.MaxValue;
foreach (Stream s in streams.OrderBy(a => a.Index).Skip(1))
{
if (s.Index <= 0)
{
over = true;
break;
}
s.idx = s.Index;
if (s.idx < val)
{
val = s.idx;
}
}
if (val != 0 && !over)
{
foreach (Stream s in streams)
{
s.idx = (byte)(s.idx - val);
s.Index = s.idx;
}
}
else if (over)
{
byte xx = 0;
foreach (Stream s in streams)
{
s.idx = xx++;
s.Index = s.idx;
}
}
streams = streams.OrderBy(a => a.idx).ToList();
}
p.Streams = streams;
});
mediaInfoThread.Start();
bool finished = mediaInfoThread.Join(TimeSpan.FromMinutes(5)); //TODO Move Timeout to settings
if (!finished)
{
try
{
mediaInfoThread.Abort();
}
catch
{
/*ignored*/
}
try
{
CloseMediaInfo();
}
catch
{
/*ignored*/
}
return(null);
}
if ((p.Container == "mp4") || (p.Container == "mov"))
{
p.Has64bitOffsets = 0;
p.OptimizedForStreaming = 0;
m.OptimizedForStreaming = 0;
byte[] buffer = new byte[8];
FileSystemResult <System.IO.Stream> fsr = file.OpenRead();
if (fsr == null || !fsr.IsOk)
{
return(null);
}
System.IO.Stream fs = fsr.Result;
fs.Read(buffer, 0, 4);
int siz = (buffer[0] << 24) | (buffer[1] << 16) | (buffer[2] << 8) | buffer[3];
fs.Seek(siz, SeekOrigin.Begin);
fs.Read(buffer, 0, 8);
if ((buffer[4] == 'f') && (buffer[5] == 'r') && (buffer[6] == 'e') && (buffer[7] == 'e'))
{
siz = (buffer[0] << 24) | (buffer[1] << 16) | (buffer[2] << 8) | (buffer[3] - 8);
fs.Seek(siz, SeekOrigin.Current);
fs.Read(buffer, 0, 8);
}
if ((buffer[4] == 'm') && (buffer[5] == 'o') && (buffer[6] == 'o') && (buffer[7] == 'v'))
{
p.OptimizedForStreaming = 1;
m.OptimizedForStreaming = 1;
siz = ((buffer[0] << 24) | (buffer[1] << 16) | (buffer[2] << 8) | buffer[3]) - 8;
buffer = new byte[siz];
fs.Read(buffer, 0, siz);
if (!FindInBuffer("trak", 0, siz, buffer, out int opos, out int oposmax))
{
return(m);
}
if (!FindInBuffer("mdia", opos, oposmax, buffer, out opos, out oposmax))
{
return(m);
}
if (!FindInBuffer("minf", opos, oposmax, buffer, out opos, out oposmax))
{
return(m);
}
if (!FindInBuffer("stbl", opos, oposmax, buffer, out opos, out oposmax))
{
return(m);
}
if (!FindInBuffer("co64", opos, oposmax, buffer, out opos, out oposmax))
{
return(m);
}
p.Has64bitOffsets = 1;
}
}
return(m);
}
}
finally
{
minstance?.Close();
GCSettings.LargeObjectHeapCompactionMode = GCLargeObjectHeapCompactionMode.CompactOnce;
GC.Collect();
}
}
