/// <summary>
/// Returns the line from "matching lines" that has the least overlapping rating with "lineInfo".
/// </summary>
private static ExtendedLineInfo GetLeastFittingLine(LineInfo lineInfo, LinkedList <ExtendedLineInfo> matchingLines)
{
double leastFittingOverlappingScore = 0.5;
ExtendedLineInfo leastFittingLine = null;
foreach (ExtendedLineInfo matchingLine in matchingLines)
{
double currentOverlappingScore = UtilsCommon.OverlappingScore(lineInfo, matchingLine);
if (leastFittingLine == null || (currentOverlappingScore < leastFittingOverlappingScore))
{
leastFittingOverlappingScore = currentOverlappingScore;
leastFittingLine = matchingLine;
}
}
return(leastFittingLine);
}
private static List <LineInfo> ParseSubtitleInVideoFile(Settings settings, string filename, Dictionary <String, String> properties)
{
StreamInfo subtitleStreamInfo = UtilsVideo.ChooseStreamInfo(filename, properties, StreamInfo.StreamType.ST_SUBTITLE);
// new subtitle file
String videoFileHash = UtilsCommon.GetDateSizeChecksum(filename);
String newSubtitleFileName = videoFileHash + "_" + subtitleStreamInfo.StreamIndex + GetExtensionByStreamInfo(subtitleStreamInfo);
string newSubtitleFilePath = InstanceSettings.temporaryFilesPath + newSubtitleFileName;
// do not extract again when file was already extracted once
if (!File.Exists(newSubtitleFilePath))
{
UtilsVideo.ExtractStream(filename, subtitleStreamInfo, newSubtitleFilePath);
}
return(ParseSubtitle(settings, newSubtitleFilePath, properties));
}
public static List <LineInfo> ParseSubtitle(Settings settings, string filename, Dictionary <String, String> properties)
{
string mimeType = UtilsCommon.GetMimetypeByFilename(filename);
// find right parser
ISubtitleParser parser = null;
switch (mimeType)
{
case "text/x-ass":
case "text/x-ssa":
parser = new SubtitleParserASS();
break;
case "application/x-subrip":
parser = new SubtitleParserSRT();
break;
case "video/x-matroska":
return(ParseSubtitleInVideoFile(settings, filename, properties));
case "":
throw new Exception("File type/mime type could not be recognized for file \"" + filename + "\"!");
default:
throw new Exception("Unsupportet format (" + mimeType + ") for subtitle \"" + filename + "\"!");
}
// read encoding string from properties
String encodingString = "utf-8";
if (properties.ContainsKey("enc"))
{
encodingString = properties["enc"];
}
// read all lines
using (var fileStream = new FileStream(filename, FileMode.Open)) {
return(parser.parse(settings, fileStream, Encoding.GetEncoding(encodingString)));
}
}
/// <summary>
/// Gets width and height of video from video StreamInfo, then applies <see cref="UtilsCommon.GetMaxScaling">.
/// </summary>
public static double GetMaxScalingByStreamInfo(StreamInfo videoStreamInfo, double maxWidth, double maxHeight, Settings.RescaleModeEnum rescaleMode)
{
if (rescaleMode == Settings.RescaleModeEnum.NoRescaling)
{
return(1);
}
// get size of image in video streams
Int32?videoWidth = videoStreamInfo.GetAttributeInt("width");
Int32?videoHeight = videoStreamInfo.GetAttributeInt("height");
if (videoWidth == null)
{
videoWidth = -1; // ignore this dimension
}
if (videoHeight == null)
{
videoHeight = -1; // ignore this dimension
}
return(UtilsCommon.GetMaxScaling(videoWidth.Value, videoHeight.Value, maxWidth, maxHeight, rescaleMode == Settings.RescaleModeEnum.Downscale));
}
public static void NormalizeAudio(String filename, StreamInfo audioStreamInfo)
{
if (!filename.EndsWith("ogg"))
{
throw new Exception("Only .ogg files are currently supported for normalizing!");
}
double maxVolume = GetMaxVolume(filename, audioStreamInfo);
double targetVolume = InstanceSettings.systemSettings.normalizeTargetVolume;
String tmpFilename = InstanceSettings.temporaryFilesPath + Path.GetFileName(filename);
String arguments = String.Format("-y -i \"{0}\" -af \"volume={1}dB\" -c:a libvorbis -vn \"{2}\"", filename, (-maxVolume + targetVolume).ToString(System.Globalization.CultureInfo.InvariantCulture), tmpFilename);
UtilsCommon.StartProcessAndGetOutput(InstanceSettings.systemSettings.formatConvertCommand, arguments);
// move new file to original position
if (File.Exists(tmpFilename))
{
File.Delete(filename);
File.Move(tmpFilename, filename);
}
}
public CardInfo GetCardClone(int index)
{
return(UtilsCommon.DeepClone(m_cardInfos[index]));
}
public void ExportData(Settings settings, InfoProgress progressInfo)
{
var activeCardList = GetActiveCards();
progressInfo.AddSection("Exporting text file", 1);
progressInfo.AddSection("Exporting snapshots", activeCardList.Count);
progressInfo.AddSection("Exporting audio files", activeCardList.Count);
if (settings.NormalizeAudio)
{
progressInfo.AddSection("Normalize audio files", activeCardList.Count);
}
progressInfo.Update();
ExportTextFile(activeCardList, settings, progressInfo);
progressInfo.ProcessedSteps(1);
var cardSnapshotNameTupleList = new List <Tuple <CardInfo, String> >(activeCardList.Count);
var cardAudioNameTupleList = new List <Tuple <CardInfo, String> >(activeCardList.Count);
foreach (var cardInfo in activeCardList)
{
cardSnapshotNameTupleList.Add(new Tuple <CardInfo, String>(cardInfo, GetSnapshotFileName(settings, cardInfo)));
cardAudioNameTupleList.Add(new Tuple <CardInfo, String>(cardInfo, GetAudioFileName(settings, cardInfo)));
}
if (progressInfo.Cancelled)
{
return;
}
// extract images
String snapshotsPath = settings.OutputDirectoryPath + Path.DirectorySeparatorChar + settings.DeckName + "_snapshots" + Path.DirectorySeparatorChar;
UtilsCommon.ClearDirectory(snapshotsPath);
WorkerSnapshot.ExtractSnaphots(settings, snapshotsPath, cardSnapshotNameTupleList, progressInfo);
if (progressInfo.Cancelled)
{
return;
}
// extract audio
String audioPath = settings.OutputDirectoryPath + Path.DirectorySeparatorChar + settings.DeckName + "_audio" + Path.DirectorySeparatorChar;
UtilsCommon.ClearDirectory(audioPath);
WorkerAudio.ExtractAudio(settings, audioPath, cardAudioNameTupleList, progressInfo);
if (progressInfo.Cancelled)
{
return;
}
if (settings.NormalizeAudio)
{
// normalize all audio files
foreach (var entry in cardAudioNameTupleList)
{
if (progressInfo.Cancelled)
{
return;
}
progressInfo.ProcessedSteps(1);
var cardInfo = entry.Item1;
if (!cardInfo.HasAudio())
{
continue;
}
var filepath = audioPath + entry.Item2;
var audioStreamInfos = StreamInfo.ReadAllStreams(filepath);
audioStreamInfos.RemoveAll(streamInfo => streamInfo.StreamTypeValue != StreamInfo.StreamType.ST_AUDIO);
if (audioStreamInfos.Count != 1)
{
Console.WriteLine("Skipped normalizing file \"{0}\" because it contains {1} audio streams", filepath, audioStreamInfos.Count);
continue;
}
try {
UtilsAudio.NormalizeAudio(filepath, audioStreamInfos[0]);
} catch (Exception e) {
Console.WriteLine(e.ToString());
continue;
}
}
}
}
/** Generates a .tsv file */
public void ExportTextFile(List <CardInfo> cardInfoList, Settings settings, InfoProgress progressInfo)
{
String tsvFilename = settings.OutputDirectoryPath + Path.DirectorySeparatorChar + settings.DeckName + ".tsv";
Console.WriteLine(tsvFilename);
// value that will be imported into Anki/SRS-Programs-Field => [sound:???.ogg] and <img src="???.jpg"/>
var snapshotFields = new List <String>(cardInfoList.Count);
var audioFields = new List <String>(cardInfoList.Count);
foreach (var cardInfo in cardInfoList)
{
if (cardInfo.HasImage())
{
var outputSnapshotFilename = GetSnapshotFileName(settings, cardInfo);
snapshotFields.Add("<img src=\"" + outputSnapshotFilename + "\"/>"); // TODO: make this flexible
}
else
{
snapshotFields.Add("");
}
if (cardInfo.HasAudio())
{
var outputAudioFilename = GetAudioFileName(settings, cardInfo);
audioFields.Add("[sound:" + outputAudioFilename + "]"); // TODO: make this flexible
}
else
{
audioFields.Add("");
}
}
using (var outputStream = new StreamWriter(tsvFilename))
{
for (int i = 0; i < cardInfoList.Count; i++)
{
CardInfo cardInfo = cardInfoList[i];
// XXX: performance analasys then --- generate a episode-filtered list for context card search (because it has O(n^2) steps)
var contextCardsTuple = UtilsSubtitle.GetContextCards(cardInfo.episodeInfo.Index, cardInfo, m_cardInfos);
var previousCards = contextCardsTuple.Item1;
var nextCards = contextCardsTuple.Item2;
var previousCardsNativeLanguage = UtilsSubtitle.CardListToMultilineString(previousCards, UtilsCommon.LanguageType.NATIVE);
var previousCardsTargetLanguage = UtilsSubtitle.CardListToMultilineString(previousCards, UtilsCommon.LanguageType.TARGET);
var nextCardsNativeLanguage = UtilsSubtitle.CardListToMultilineString(nextCards, UtilsCommon.LanguageType.NATIVE);
var nextCardsTargetLanguage = UtilsSubtitle.CardListToMultilineString(nextCards, UtilsCommon.LanguageType.TARGET);
String keyField = cardInfo.GetKey();
String audioField = audioFields[i];
String imageField = snapshotFields[i];
String tags = String.Format("SubtitleMemorize {0} ep{1:000} {2}", settings.DeckNameModified, cardInfo.episodeInfo.Number, InfoLanguages.languages[settings.TargetLanguageIndex].tag);
outputStream.WriteLine(UtilsCommon.HTMLify(keyField) + "\t" +
UtilsCommon.HTMLify(imageField) + "\t" +
UtilsCommon.HTMLify(audioField) + "\t" +
UtilsCommon.HTMLify(cardInfo.ToSingleLine(UtilsCommon.LanguageType.TARGET)) + "\t" +
UtilsCommon.HTMLify(cardInfo.ToSingleLine(UtilsCommon.LanguageType.NATIVE)) + "\t" +
UtilsCommon.HTMLify(previousCardsTargetLanguage) + "\t" +
UtilsCommon.HTMLify(previousCardsNativeLanguage) + "\t" +
UtilsCommon.HTMLify(nextCardsTargetLanguage) + "\t" +
UtilsCommon.HTMLify(nextCardsNativeLanguage) + "\t" +
UtilsCommon.HTMLify(tags)
);
}
}
}
/// <summary>
/// XXX: Wrong documentation = Selects preview lines in Gtk.TreeView based on a condtion like "episode=3 and contains(sub1, 'Bye')".
/// </summary>
/// <param name="conditionExpr">Condition expr.</param>
/// <param name="isIncrementalSearch">Only change selection state for lines with matching expressions.</param>
/// <param name="selectAction">true -> select matching lines, false -> deselect matching lines</param>
public List <bool> EvaluateForEveryLine(String conditionExpr)
{
// select all if expression is null
var resultsList = Enumerable.Repeat(false, m_cardInfos.Count).ToList();
if (String.IsNullOrWhiteSpace(conditionExpr))
{
return(resultsList);
}
int currentCardIndex = 0; // card index which will be used for evaluation an expression in delegate
Expression expr = new Expression(conditionExpr);
// resolve certain parameters in expression
expr.EvaluateParameter += delegate(string name, ParameterArgs args)
{
CardInfo infoSourceCard = m_cardInfos[currentCardIndex];
switch (name)
{
case "isActive": // fallthrough
case "active": args.Result = infoSourceCard.isActive; break;
case "number":
case "episodeNumber":
case "episode": args.Result = infoSourceCard.episodeInfo.Number; break;
case "text":
case "sub": args.Result = infoSourceCard.ToSingleLine(UtilsCommon.LanguageType.TARGET) + " " + infoSourceCard.ToSingleLine(UtilsCommon.LanguageType.NATIVE); break;
case "sub1":
case "text1": args.Result = infoSourceCard.ToSingleLine(UtilsCommon.LanguageType.TARGET); break;
case "sub2":
case "text2": args.Result = infoSourceCard.ToSingleLine(UtilsCommon.LanguageType.NATIVE); break;
case "actor":
case "actors":
case "name":
case "names": args.Result = infoSourceCard.GetActorString(); break;
case "start": args.Result = infoSourceCard.startTimestamp; break;
case "end": args.Result = infoSourceCard.endTimestamp; break;
case "duration": args.Result = infoSourceCard.Duration; break;
case "next_start":
args.Result = currentCardIndex + 1 >= m_cardInfos.Count ? 1000000.0 : m_cardInfos[currentCardIndex + 1].StartTime;
break;
case "next_end":
args.Result = currentCardIndex + 1 >= m_cardInfos.Count ? 1000000.0 : m_cardInfos[currentCardIndex + 1].EndTime;
break;
case "next_duration":
args.Result = currentCardIndex + 1 >= m_cardInfos.Count ? 0 : m_cardInfos[currentCardIndex + 1].Duration;
break;
case "prev_start":
args.Result = currentCardIndex <= 0 ? -1000000.0 : m_cardInfos[currentCardIndex - 1].StartTime;
break;
case "prev_end":
args.Result = currentCardIndex <= 0 ? -1000000.0 : m_cardInfos[currentCardIndex - 1].EndTime;
break;
case "prev_duration":
args.Result = currentCardIndex <= 0 ? 0 : m_cardInfos[currentCardIndex - 1].Duration;
break;
}
};
// resolve certain functions in expression
expr.EvaluateFunction += delegate(string name, FunctionArgs args)
{
CardInfo infoSourceCard = m_cardInfos[currentCardIndex];
switch (name)
{
// an exmple for this function is "contains(sub1, 'some text')" that selects all lines, where sub1 contains 'some text'
case "c":
case "contains":
{
// two string parameters are expected
if (args.Parameters.Length < 1)
{
return;
}
object[] arguments = args.EvaluateParameters();
foreach (var argument in arguments)
{
if (!(argument is String))
{
return;
}
}
String substring = (String)arguments[arguments.Length - 1];
args.HasResult = true;
args.Result = false;
bool result = false;
if (arguments.Length == 1)
{
result = infoSourceCard.ToSingleLine(UtilsCommon.LanguageType.NATIVE).Contains(substring);
if (result)
{
args.Result = result; goto contains_finished;
}
result = infoSourceCard.ToSingleLine(UtilsCommon.LanguageType.TARGET).Contains(substring);
if (result)
{
args.Result = result; goto contains_finished;
}
}
else
{
// evaluate function
for (int i = 0; i < arguments.Length - 1; i++)
{
String string0 = (String)arguments[i];
result = string0.Contains(substring);
if (result)
{
args.Result = result; goto contains_finished;
}
}
}
contains_finished :;
}
break;
// search for regex; for example: "r(text1, 'hi|hello')"
// 'r('hi|hello')' searches both in sub1 and sub2
case "r":
case "regex":
{
// two string parameters are expected
if (args.Parameters.Length < 1)
{
return;
}
object[] arguments = args.EvaluateParameters();
foreach (var argument in arguments)
{
if (!(argument is String))
{
return;
}
}
String regex = (String)arguments[arguments.Length - 1];
args.HasResult = true;
args.Result = false;
if (arguments.Length == 1)
{
try
{
var match = Regex.Match(infoSourceCard.ToSingleLine(UtilsCommon.LanguageType.NATIVE), regex, RegexOptions.Compiled | RegexOptions.IgnoreCase);
args.Result = match.Success;
if (match.Success)
{
goto finish_regex;
}
}
catch { }
try
{
var match = Regex.Match(infoSourceCard.ToSingleLine(UtilsCommon.LanguageType.TARGET), regex, RegexOptions.Compiled | RegexOptions.IgnoreCase);
args.Result = match.Success;
if (match.Success)
{
goto finish_regex;
}
}
catch { }
}
else if (arguments.Length > 1)
{
// try to match any text before regex argument
for (int i = 0; i < arguments.Length - 1; i++)
{
try
{
String str = (String)arguments[0];
var match = Regex.Match(str, regex, RegexOptions.Compiled | RegexOptions.IgnoreCase);
args.Result = match.Success;
if (match.Success)
{
goto finish_regex;
}
}
catch { }
}
}
finish_regex :;
}
break;
// example: time('25:10.50') returns the number of seconds of 25min 10secs 50hsecs
case "time":
{
if (args.Parameters.Length != 1)
{
return;
}
object argumentObject = args.EvaluateParameters()[0];
if (!(argumentObject is String))
{
return;
}
String timeString = (String)argumentObject;
args.Result = UtilsCommon.ParseTimeString(timeString);
args.HasResult = true;
}
break;
}
};
for (int i = 0; i < m_cardInfos.Count; i++)
{
// provide infos for expr.Evaluate()
currentCardIndex = i;
object result = expr.Evaluate();
if (result is bool && result != null)
{
resultsList[i] = (bool)result;
}
}
return(resultsList);
}
/// <summary>
/// Returns the longest list of line containers, for which no line containers overlap. Addtionaly
/// these containers are sorted by start time.
/// </summary>
public static List <LineContainer <T> > GetNonOverlappingTimeSpans <T>(LinkedList <T> lines, double threshold = 0) where T : ITimeSpan
{
var containers = new LinkedList <LineContainer <T> >();
var lineAlreadyAdded = new bool[lines.Count];
var lineANode = lines.First;
var lineBNode = lines.First;
int lineAindex = 0;
int lineBindex = 0;
while (lineANode != null)
{
if (lineAlreadyAdded [lineAindex])
{
lineAindex++;
lineANode = lineANode.Next;
continue;
}
// create new container for this line
var lineContainer = new LineContainer <T>();
lineContainer.AddLine(lineANode.Value);
lineAlreadyAdded[lineAindex] = true;
containers.AddLast(lineContainer);
restartLoop:
lineBNode = lineANode.Next;
lineBindex = lineAindex + 1;
while (lineBNode != null)
{
if (lineAlreadyAdded [lineBindex])
{
lineBindex++;
lineBNode = lineBNode.Next;
continue;
}
// just test treshold if line collides with container
if (UtilsCommon.IsOverlapping(lineBNode.Value, lineContainer))
{
foreach (ITimeSpan timeSpanInContainer in lineContainer.TimeSpans)
{
if (UtilsCommon.OverlappingScore(lineBNode.Value, timeSpanInContainer) > threshold)
{
lineContainer.AddLine(lineBNode.Value);
lineAlreadyAdded[lineBindex] = true;
goto restartLoop;
}
}
}
lineBindex++;
lineBNode = lineBNode.Next;
}
lineAindex++;
lineANode = lineANode.Next;
}
// XXX: is sort necessary
var containerList = containers.ToList();
containerList.Sort();
return(containerList);
}
/// <summary>
/// Uses ffprobe/avprobe to query all audio, video and subtitle streams in a container file.
/// </summary>
public static List <StreamInfo> ReadAllStreams(String filename)
{
// use ffprobe/avprobe(?) to get nice XML-description of contents
String stdout = UtilsCommon.StartProcessAndGetOutput(InstanceSettings.systemSettings.formatProberCommand, @"-v quiet -print_format xml -show_streams """ + filename + @"""");
if (stdout == null)
{
throw new IOException("Calling ffprobe/avprobe failed! Is it installed?");
}
List <StreamInfo> allStreamInfos = new List <StreamInfo> ();
StreamInfo lastStreamInfo = null;
// use XmlReader to read all informations from "stream"-tags and "tag"-tags
using (XmlReader reader = XmlReader.Create(new StringReader(stdout))) {
while (reader.Read())
{
if (reader.NodeType != XmlNodeType.Element)
{
continue;
}
// the "stream"-tag contains most of the information needed as attributes
if (reader.Name == "stream")
{
// get stream type
StreamType streamType;
switch (reader["codec_type"])
{
case "video": streamType = StreamType.ST_VIDEO; break;
case "audio": streamType = StreamType.ST_AUDIO; break;
case "subtitle": streamType = StreamType.ST_SUBTITLE; break;
default: streamType = StreamType.ST_UNKNOWN; break;
}
// read all other information into dictionary
var attributeDictionary = new Dictionary <String, String>();
for (int i = 0; i < reader.AttributeCount; i++)
{
reader.MoveToNextAttribute();
attributeDictionary.Add(reader.Name, reader.Value);
}
StreamInfo streamInfo = new StreamInfo(Int32.Parse(reader["index"]), streamType, reader["codec_name"], attributeDictionary);
allStreamInfos.Add(streamInfo);
lastStreamInfo = streamInfo;
}
// the "tag"-tag provides additonal information (mainly language)
if (reader.Name == "tag")
{
if (lastStreamInfo == null)
{
continue;
}
switch (reader ["key"])
{
case "language":
lastStreamInfo.m_language = reader ["value"] ?? "";
break;
default:
break;
}
}
}
}
return(allStreamInfos);
}
/// <summary>
/// Returns some string that identifies this card information.
/// </summary>
/// <returns>The key.</returns>
public String GetKey()
{
String str = String.Format("{0:000.}", episodeInfo.Number) + "__" + UtilsCommon.ToTimeArg(startTimestamp) + "__" + UtilsCommon.ToTimeArg(endTimestamp);
return(Regex.Replace(str, "[^a-zA-Z0-9]", "_"));
}
/// <summary>
/// This creates a list of good matching lines between primaryList and secondaryList.
/// </summary>
/// <param name="list1">List1.</param>
/// <param name="list2">List2.</param>
private static void FindMatching(List <ExtendedLineInfo> list1, List <ExtendedLineInfo> list2)
{
int i1 = 0, i2 = 0;
foreach (var line in list1)
{
line.matchingLines.Clear();
line.alreadyUsedInBidirectionalSearch = false;
}
foreach (var line in list2)
{
line.matchingLines.Clear();
line.alreadyUsedInBidirectionalSearch = false;
}
while (i1 < list1.Count)
{
int i2_reset = i2;
while (i2 < list2.Count)
{
// node2 does not overlap with node1? Then proceed with next node1.
if (list1[i1].EndTime < list2[i2].StartTime)
{
break;
}
// node1 and node2 overlap!
if (UtilsCommon.OverlappingScore(list1[i1], list2[i2]) >= 0.4)
{
list1[i1].matchingLines.AddLast(list2[i2]);
list2[i2].matchingLines.AddLast(list1[i1]);
}
// try combination (node1, next node2) in next inner iteration
i2++;
}
// do node1 and next node1 overlap? Then all node2's we handled in this iteration might
// overlap with next node1 -> reset node2 to start of this iteration.
if (i1 + 1 != list1.Count && list1[i1 + 1].StartTime <= list1[i1].EndTime)
{
i2 = i2_reset;
}
i1++;
}
/*
* foreach(var primaryListLine in primaryList) {
* primaryListLine.matchingLines.Clear();
* primaryListLine.alreadyUsedInBidirectionalSearch = false;
*
* Action<ExtendedLineInfo, ExtendedLineInfo> matchLines = delegate(ExtendedLineInfo thisLine, ExtendedLineInfo secondaryListLine) {
* if (UtilsCommon.OverlappingScore(thisLine, secondaryListLine) < 0.4) return;
* thisLine.matchingLines.AddLast (secondaryListLine);
* };
*
* secondaryListCache.DoForOverlapping(primaryListLine, matchLines);
* }
*/
}