/// <summary>
///
/// </summary>
/// <param name="box"></param>
public Mp4TreeNode(Mp4Box box)
{
this.Box = box;
Text = Mp4Util.FormatFourChars(box.Type);
ImageSource = GetImageSource(box.Type);
if (box is Mp4ContainerBox)
{
foreach (Mp4Box child in ((Mp4ContainerBox)box).Children)
{
Items.Add(new Mp4TreeNode(child));
}
}
if (box is Mp4StsdBox)
{
foreach (Mp4Box child in ((Mp4StsdBox)box).Entries)
{
Items.Add(new Mp4TreeNode(child));
}
}
if (box is Mp4DrefBox)
{
foreach (Mp4Box child in ((Mp4DrefBox)box).Entries)
{
Items.Add(new Mp4TreeNode(child));
}
}
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void View_NodeSelected(object sender, DataEventArgs <TreeViewItem> e)
{
if (e.Value != null && e.Value is Mp4TreeNode)
{
Mp4Box box = ((Mp4TreeNode)e.Value).Box;
controller.OnBoxSelected(box);
}
else
{
controller.ShowFile(file);
}
}
public IBoxView GetView(Mp4Box box)
{
if (_ViewsMap.TryGetValue(box.GetType(), out Type viewType))
{
var view = (IBoxView)Activator.CreateInstance(viewType);
view.Box = box;
return(view);
}
else
{
return(null);
}
}
public void OnBoxSelected(Mp4Box box)
{
RemoveViews();
if (box != null)
{
IBoxView view = _MainService.GetView(box);
if (view != null)
{
IRegion mainRegion = _RegionManager.Regions[RegionNames.MainRegion];
mainRegion.Add(view);
mainRegion.Activate(view);
}
}
}
public static bool ParseFile(string Path, Options opt)
{
bool result = false;
string log = "\r\n";
try
{
FileStream fs = new FileStream(Path, FileMode.Open, FileAccess.Read);
if (fs != null)
{
long offset = 0;
fs.Seek((long)offset, SeekOrigin.Begin);
while (offset < fs.Length)
{
Mp4Box box = Mp4Box.ReadMp4Box(fs);
if (box != null)
{
log += box.ToString() + "\tat offset: " + offset.ToString() + "\r\n";
if (box.GetBoxType() != "mdat\0")
{
log += Mp4Box.GetBoxChildrenString(0, box);
}
if (((opt.TraceLevel >= Options.LogLevel.Verbose) && (!string.IsNullOrEmpty(opt.TraceFile))) || (opt.ConsoleLevel >= Options.LogLevel.Verbose))
{
log += Options.DumpHex(box.GetBoxBytes());
}
offset += box.GetBoxLength();
opt.LogInformation(log);
log = "\r\n";
}
else
{
break;
}
}
fs.Close();
result = true;
}
}
catch (Exception ex)
{
opt.LogError("ERROR: Exception while parsing the file: " + ex.Message);
}
return(result);
}
/// <summary>
///
/// </summary>
/// <param name="box"></param>
/// <returns></returns>
public IBoxView GetView(Mp4Box box)
{
Type type = null;
if (!viewsCache.ContainsKey(box.GetType()))
{
Assembly assembly = Assembly.GetAssembly(this.GetType());
List <Type> types = new List <Type>(assembly.GetTypes());
type = types.Find(t =>
{
object[] customAttributes = t.GetCustomAttributes(typeof(BoxViewTypeAttribute), false);
return(typeof(IBoxView).IsAssignableFrom(t) && customAttributes.Length == 1 &&
((BoxViewTypeAttribute)customAttributes[0]).BoxType == box.GetType());
});
if (type != null)
{
viewsCache.Add(box.GetType(), type);
}
else
{
type = null;
}
}
else
{
type = viewsCache[box.GetType()];
}
if (type != null)
{
IBoxView view = (IBoxView)type.GetConstructor(Type.EmptyTypes).Invoke(null);
view.Box = box;
return(view);
}
else
{
return(null);
}
}
public Mp4TreeNode(Mp4Box box)
{
Box = box;
Text = Mp4Util.FormatFourChars(box.Type);
ImageSource = GetImageSource(box.Type);
IEnumerable <Mp4Box> children = box switch
{
Mp4ContainerBox containerBox => containerBox.Children,
Mp4StsdBox stsdBox => stsdBox.Entries,
Mp4DrefBox drefBox => drefBox.Entries,
_ => Enumerable.Empty <Mp4Box>(),
};
foreach (Mp4Box child in children)
{
Items.Add(new Mp4TreeNode(child));
}
}
public static string ParseFile(string Path, Options opt, CallBack callback)
{
string result = "\r\n";
try
{
FileStream fs = new FileStream(Path, FileMode.Open, FileAccess.Read);
if (fs != null)
{
long offset = 0;
fs.Seek((long)offset, SeekOrigin.Begin);
while (offset < fs.Length)
{
Mp4Box box = Mp4Box.ReadMp4Box(fs);
if (box != null)
{
result += box.ToString() + "\tat offset: " + offset.ToString() + "\r\n";
if (box.GetBoxType() != "mdat\0")
{
result += Mp4Box.GetBoxChildrenString(0, box);
}
offset += box.GetBoxLength();
if (callback != null)
{
callback(opt, result);
}
result = "\r\n";
}
else
{
break;
}
}
fs.Close();
}
}
catch (Exception ex)
{
result += "ERROR: Exception while parsing the file: " + ex.Message;
}
return(result);
}
static bool Parse(Options opt)
{
bool result = true;
opt.Status = Options.TheadStatus.Running;
opt.ThreadStartTime = DateTime.Now;
opt.LogInformation("Parsing file: " + opt.InputUri);
if (opt.TraceLevel >= Options.LogLevel.Verbose)
{
opt.LogVerbose(Mp4Box.ParseFileVerbose(opt.InputUri));
}
else
{
opt.LogInformation(Mp4Box.ParseFile(opt.InputUri));
}
opt.LogInformation("Parsing file: " + opt.InputUri + " done");
opt.Status = Options.TheadStatus.Stopped;
return(result);
}
static public void ConvertVideo(string mediaName, int mediaId)
{
var db = new ApplicationDbContext();
var dbRecord = db.MediaFiles.Find(mediaId);
var baseDir = HostingEnvironment.MapPath("~/MediaData/Videos/" + mediaId);
var mediaDir = Path.Combine(baseDir, mediaName);
var mediaInfo = GetMediaInfo(mediaDir);
//todo error when mediinfo doesnt have video
if (!mediaInfo.Video.HasVideo)
{
//todo: implement this in the controller
throw new Exception("Video file is not supported");
}
VideoQuality videoQuality = ServerTools.VideoParams.ClassifyVideo(mediaInfo);
MediaInfo videoParams = ServerTools.VideoParams.GetVideoParams(videoQuality);
dbRecord.VideoQuality = videoQuality;
var outputVidSd = Path.Combine(baseDir, "sd.mp4");
var outputVidHd = Path.Combine(baseDir, "hd.mp4");
var outputAudio = Path.Combine(baseDir, "audio.mp4");
var outputMobile = Path.Combine(baseDir, "mobile.mp4");
var outputMobileHd = Path.Combine(baseDir, "mobileHd.mp4");
var outputThumbnail = Path.Combine(baseDir, "thumbnail.jpg");
var outputPasslogFile = Path.Combine(baseDir, "passlog");
var segmentsDir = Path.Combine(baseDir, "segments");
if (!Directory.Exists(segmentsDir))
{
Directory.CreateDirectory(segmentsDir);
}
var hcontext = HttpContext.Current;
var task = Task.Factory.StartNew(() =>
{
HttpContext.Current = hcontext;
FFMPEG ffmpeg = new FFMPEG();
//What part of total progress is the current conversion
Dictionary <string, double> ConversionPercentages = new Dictionary <string, double>();
if (videoQuality == VideoQuality.p360)
{
ConversionPercentages["sd"] = 0.9;
ConversionPercentages["audio"] = 0.1;
}
else
{
ConversionPercentages["sd"] = 0.2;
ConversionPercentages["hd"] = 0.7;
ConversionPercentages["audio"] = 0.1;
}
// Convert to SD
string command = String.Format("-i \"{0}\" -an -b:v {1}k -s {2} -vcodec libx264 -r 24 -g 48 -keyint_min 48 -sc_threshold 0 -pass 1 -passlogfile \"{3}\" \"{4}\"",
mediaDir, ServerTools.VideoParams.p360.Video.Bitrate, ServerTools.VideoParams.p360.Video.Resolution, outputPasslogFile, outputVidSd);
var result = ffmpeg.RunCommand(command, mediaId, ConversionPercentages, "sd", mediaInfo.Video.Duration);
//Convert to HD
if (videoQuality != VideoQuality.p360)
{
command = String.Format("-i \"{0}\" -an -b:v {1}k -s {2} -vcodec libx264 -r 24 -g 48 -keyint_min 48 -sc_threshold 0 -pass 1 -passlogfile \"{3}\" \"{4}\"",
mediaDir, videoParams.Video.Bitrate, videoParams.Video.Resolution, outputPasslogFile, outputVidHd);
result = ffmpeg.RunCommand(command, mediaId, ConversionPercentages, "hd", mediaInfo.Video.Duration);
}
//Convert Audio
command = String.Format("-i \"{0}\" -vn -strict experimental -c:a aac -b:a 128k \"{1}\"",
mediaDir, outputAudio);
result = ffmpeg.RunCommand(command, mediaId, ConversionPercentages, "audio", mediaInfo.Video.Duration);
//Extract thumbnail from the middle of the video
command = String.Format(" -ss {0} -i \"{1}\" -vframes 1 -an -s 360x240 \"{2}\" ", (mediaInfo.Video.Duration / 2.0).ToString(CultureInfo.InvariantCulture),
mediaDir, outputThumbnail);
result = ffmpeg.RunCommand(command);
if (mediaInfo.Audio.HasAudio)
{
//Convert to mobile (add sound to sd video)
command = String.Format("-i \"{0}\" -i \"{1}\" -c:v copy -c:a copy \"{2}\"",
outputVidSd, outputAudio, outputMobile);
result = ffmpeg.RunCommand(command);
//Convert to mobile Hd
if (videoQuality != VideoQuality.p360)
{
command = String.Format("-i \"{0}\" -i \"{1}\" -c:v copy -c:a copy \"{2}\"",
outputVidHd, outputAudio, outputMobileHd);
result = ffmpeg.RunCommand(command);
}
}
else
{
File.Copy(outputVidSd, outputMobile);
if (videoQuality != VideoQuality.p360)
{
File.Copy(outputVidHd, outputMobileHd);
}
}
//Segment videos and audio
Mp4Box mp4Box = new Mp4Box();
if (videoQuality == VideoQuality.p360)
{
command = String.Format("-dash 2000 -frag 2000 -bs-switching no -segment-name \"%s_\" -url-template -out \"{0}\" \"{1}\" \"{2}\" ", Path.Combine(segmentsDir, "video.mpd"), outputVidSd, outputAudio);
}
else
{
command = String.Format("-dash 2000 -frag 2000 -bs-switching no -segment-name \"%s_\" -url-template -out \"{0}\" \"{1}\" \"{2}\" \"{3}\" ", Path.Combine(segmentsDir, "video.mpd"), outputVidSd, outputVidHd, outputAudio);
}
result = mp4Box.RunCommand(command);
File.Delete(mediaDir);
File.Delete(outputVidSd);
if (File.Exists(outputVidHd))
{
File.Delete(outputVidHd);
}
File.Delete(outputAudio);
dbRecord.IsBeingConverted = false;
db.Entry(dbRecord).State = EntityState.Modified;
db.SaveChanges();
HttpContext.Current.Cache[mediaId.ToString()] = 1.0;
}, TaskCreationOptions.LongRunning);
}