public OutputPackage ConvertToFLV(string inputPath)
{
VideoFile vf = null;
//try
//{
vf = new VideoFile(inputPath);
//}
//catch (Exception ex)
//{
// throw ex;
//}
OutputPackage oo = ConvertToFLV(vf);
return(oo);
}
public OutputPackage ConvertToFLV(VideoFile input)
{
if (!input.infoGathered)
{
GetVideoInfo(input);
}
OutputPackage ou = new OutputPackage();
string sourceExtension = GetFileExension(input.Path);
string sourceWithoutExtension = input.Path.Replace("." + sourceExtension, "");
//GET PREVIEW IMAGE ---------------------------------------
string previewPath = sourceWithoutExtension + ".jpg";
string processParams = string.Format(" -i \"{0}\" -f mjpeg -t 0.001 -ss 5 -y \"{1}\" ", input.Path, previewPath);
string output = RunProcess(processParams);
ou.RawOutput = output;
if (File.Exists(previewPath))
{
ou.PreviewImage = LoadImageFromFile(previewPath);
ou.PreviewImagePath = previewPath;
}
else
{ //try running again at frame 1 to get something
processParams = string.Format("-i \"{0}\" \"{1}\" -vcodec mjpeg -ss {2} -vframes 1 -an -f rawvideo", input.Path, previewPath, 1);
output = RunProcess(processParams);
ou.RawOutput = output;
if (File.Exists(previewPath))
{
ou.PreviewImage = LoadImageFromFile(previewPath);
ou.PreviewImagePath = previewPath;
}
}
//CONVERT THE FILE --------------------------------------------------------------------------------
if (sourceExtension == "flv")
{
ou.Path = input.Path;
ou.Length = 0;
byte[] fileBytes = File.ReadAllBytes(input.Path);
MemoryStream mems = new MemoryStream(fileBytes);
ou.VideoStream = mems;
ou.Length = (int)ou.VideoStream.Length;
}
else
{
string flvPath = sourceWithoutExtension + ".flv";
//processParams = string.Format("-i {0} -s 480x360 -y -ar 44100 -ab 64 -f flv {1}", input.Path, flvPath);
//string videoParam = "-b 512k -f flv -s 480x270 -vcodec libx264 -vpre hq";
//string autidoParam = "-ar 44100 -ac 2 -ab 93k -acodec aac";
// Params = String.Format("-i \"{0}\" {1} {2} -y \"{3}\"",
// input.Path, videoParam, autidoParam, flvPath);
//medium quality
processParams = string.Format("-i \"{0}\" -acodec mp3 -ab 48k -ac 1 -ar 44100 -f flv -deinterlace -nr 500 -r 25 -b 270k -me_range 25 -i_qfactor 0.71 -g 500 \"{1}\" ",
input.Path, flvPath);
////high quality
//processParams = string.Format("-i \"{0}\" -acodec mp3 -ab 64k -ac 2 -ar 44100 -f flv -deinterlace -nr 500 -r 25 -b 650k -me_range 25 -i_qfactor 0.71 -g 500 \"{1}\"",
// input.Path, flvPath);
Process proc = new Process();
proc.StartInfo.Arguments = processParams;
proc.StartInfo.FileName = this._ffExe;
proc.StartInfo.UseShellExecute = false;
proc.StartInfo.CreateNoWindow = true;
proc.StartInfo.RedirectStandardOutput = true;
proc.StartInfo.RedirectStandardError = true;
proc.Start(); // start !
proc.WaitForExit();
//output = RunProcess(processParams);
if (File.Exists(flvPath))
{
ou.Path = flvPath;
ou.VideoStream = LoadMemoryStreamFromFile(flvPath);
ou.Length = (int)ou.VideoStream.Length;
try
{
File.Delete(input.Path);
}
catch (Exception) { }
}
}
ou.Success = true;
return(ou);
}
public void GetVideoInfo(VideoFile input)
{
//set up the parameters for video info
string Params = string.Format("-i {0}", input.Path);
string output = RunProcess(Params);
input.RawInfo = output;
//get duration
Regex re = new Regex("[D|d]uration:.((\\d|:|\\.)*)");
Match m = re.Match(input.RawInfo);
if (m.Success)
{
string duration = m.Groups[1].Value;
string[] timepieces = duration.Split(new char[] { ':', '.' });
if (timepieces.Length == 4)
{
input.Duration = new TimeSpan(0, Convert.ToInt16(timepieces[0]), Convert.ToInt16(timepieces[1]), Convert.ToInt16(timepieces[2]), Convert.ToInt16(timepieces[3]));
}
}
//get audio bit rate
re = new Regex("[B|b]itrate:.((\\d|:)*)");
m = re.Match(input.RawInfo);
double kb = 0.0;
if (m.Success)
{
Double.TryParse(m.Groups[1].Value, out kb);
}
input.BitRate = kb;
//get the audio format
re = new Regex("[A|a]udio:.*");
m = re.Match(input.RawInfo);
if (m.Success)
{
input.AudioFormat = m.Value;
}
//get the video format
re = new Regex("[V|v]ideo:.*");
m = re.Match(input.RawInfo);
if (m.Success)
{
input.VideoFormat = m.Value;
}
//get the video format
re = new Regex("(\\d{2,3})x(\\d{2,3})");
m = re.Match(input.RawInfo);
if (m.Success)
{
int width = 0; int height = 0;
int.TryParse(m.Groups[1].Value, out width);
int.TryParse(m.Groups[2].Value, out height);
input.Width = width;
input.Height = height;
}
input.infoGathered = true;
}
