diff options
Diffstat (limited to 'win/C#/HandBrake.ApplicationServices/Parsing/Parser.cs')
| -rw-r--r-- | win/C#/HandBrake.ApplicationServices/Parsing/Parser.cs | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/win/C#/HandBrake.ApplicationServices/Parsing/Parser.cs b/win/C#/HandBrake.ApplicationServices/Parsing/Parser.cs new file mode 100644 index 000000000..1e6329db1 --- /dev/null +++ b/win/C#/HandBrake.ApplicationServices/Parsing/Parser.cs @@ -0,0 +1,159 @@ +/* Parser.cs $
+ This file is part of the HandBrake source code.
+ Homepage: <http://handbrake.fr>.
+ It may be used under the terms of the GNU General Public License. */
+
+namespace HandBrake.ApplicationServices.Parsing
+{
+ using System;
+ using System.Globalization;
+ using System.IO;
+ using System.Text;
+ using System.Text.RegularExpressions;
+
+ /// <summary>
+ /// A delegate to handle custom events regarding data being parsed from the buffer
+ /// </summary>
+ /// <param name="sender">The object which raised this delegate</param>
+ /// <param name="data">The data parsed from the stream</param>
+ public delegate void DataReadEventHandler(object sender, string data);
+
+ /// <summary>
+ /// A delegate to handle events regarding progress during DVD scanning
+ /// </summary>
+ /// <param name="sender">The object who's raising the event</param>
+ /// <param name="currentTitle">The title number currently being processed</param>
+ /// <param name="titleCount">The total number of titiles to be processed</param>
+ public delegate void ScanProgressEventHandler(object sender, int currentTitle, int titleCount);
+
+ /// <summary>
+ /// A delegate to handle encode progress updates // EXPERIMENTAL
+ /// </summary>
+ /// <param name="sender">The object which raised the event</param>
+ /// <param name="currentTask">The current task being processed from the queue</param>
+ /// <param name="taskCount">The total number of tasks in queue</param>
+ /// <param name="percentComplete">The percentage this task is complete</param>
+ /// <param name="currentFps">The current encoding fps</param>
+ /// <param name="averageFps">The average encoding fps for this task</param>
+ /// <param name="timeRemaining">The estimated time remaining for this task to complete</param>
+ public delegate void EncodeProgressEventHandler(object sender, int currentTask, int taskCount, float percentComplete, float currentFps, float averageFps, TimeSpan timeRemaining);
+
+ /// <summary>
+ /// A simple wrapper around a StreamReader to keep track of the entire output from a cli process
+ /// </summary>
+ public class Parser : StreamReader
+ {
+ /// <summary>
+ /// The Buffer StringBuilder
+ /// </summary>
+ private readonly StringBuilder buffer = new StringBuilder(string.Empty);
+
+ /// <summary>
+ /// Initializes a new instance of the <see cref="Parser"/> class.
+ /// Default constructor for this object
+ /// </summary>
+ /// <param name="baseStream">
+ /// The stream to parse from
+ /// </param>
+ public Parser(Stream baseStream) : base(baseStream)
+ {
+ }
+
+ /// <summary>
+ /// Raised upon a new line being read from stdout/stderr
+ /// </summary>
+ public event DataReadEventHandler OnReadLine;
+
+ /// <summary>
+ /// Raised upon the entire stdout/stderr stream being read in a single call
+ /// </summary>
+ public event DataReadEventHandler OnReadToEnd;
+
+ /// <summary>
+ /// Raised upon the catching of a "Scanning title # of #..." in the stream
+ /// </summary>
+ public event ScanProgressEventHandler OnScanProgress;
+
+ /// <summary>
+ /// Raised upon the catching of a "Scanning title # of #..." in the stream
+ /// </summary>
+ public event EncodeProgressEventHandler OnEncodeProgress;
+
+ /// <summary>
+ /// Gets the buffer of data that came from the CLI standard input/error
+ /// </summary>
+ public StringBuilder Buffer
+ {
+ get { return buffer; }
+ }
+
+ /// <summary>
+ /// Read a line from standard in/err
+ /// </summary>
+ /// <returns>
+ /// The read line
+ /// </returns>
+ public override string ReadLine()
+ {
+ string tmp = base.ReadLine();
+
+ buffer.Append(tmp + Environment.NewLine);
+
+ Match m = null;
+ if (tmp.Contains("Scanning title"))
+ m = Regex.Match(tmp, "^Scanning title ([0-9]*) of ([0-9]*)");
+
+ if (OnReadLine != null)
+ OnReadLine(this, tmp);
+
+ if (m != null)
+ if (m.Success && OnScanProgress != null)
+ OnScanProgress(this, int.Parse(m.Groups[1].Value), int.Parse(m.Groups[2].Value));
+
+ return tmp;
+ }
+
+ /// <summary>
+ /// Read to the end of the input stream
+ /// </summary>
+ /// <returns>
+ /// A string of the input data
+ /// </returns>
+ public override string ReadToEnd()
+ {
+ string tmp = base.ReadToEnd();
+
+ buffer.Append(tmp + Environment.NewLine);
+
+ if (OnReadToEnd != null)
+ OnReadToEnd(this, tmp);
+
+ return tmp;
+ }
+
+ /// <summary>
+ /// Pase the CLI status output (from standard output)
+ /// </summary>
+ public void ReadEncodeStatus()
+ {
+ CultureInfo culture = CultureInfo.CreateSpecificCulture("en-US");
+ string tmp = base.ReadLine();
+
+ Match m = Regex.Match(tmp, @"^Encoding: task ([0-9]*) of ([0-9]*), ([0-9]*\.[0-9]*) %( \(([0-9]*\.[0-9]*) fps, avg ([0-9]*\.[0-9]*) fps, ETA ([0-9]{2})h([0-9]{2})m([0-9]{2})s\))?");
+ if (m.Success && OnEncodeProgress != null)
+ {
+ int currentTask = int.Parse(m.Groups[1].Value);
+ int totalTasks = int.Parse(m.Groups[2].Value);
+ float percent = float.Parse(m.Groups[3].Value, culture);
+ float currentFps = m.Groups[5].Value == string.Empty ? 0.0F : float.Parse(m.Groups[5].Value, culture);
+ float avgFps = m.Groups[6].Value == string.Empty ? 0.0F : float.Parse(m.Groups[6].Value, culture);
+ TimeSpan remaining = TimeSpan.Zero;
+ if (m.Groups[7].Value != string.Empty)
+ {
+ remaining = TimeSpan.Parse(m.Groups[7].Value + ":" + m.Groups[8].Value + ":" + m.Groups[9].Value);
+ }
+ OnEncodeProgress(this, currentTask, totalTasks, percent, currentFps, avgFps, remaining);
+ }
+ }
+ }
+}
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