/// <summary>
/// To use: Prepare Windows Media Writer and other objects, construct, call the Encode method,
/// use properties and other methods to get results, release, close Windows Media Writer.
/// </summary>
/// <param name="segment">Batch params for this segment. We assume all fields have already been validated.</param>
/// <param name="jobStart">Absolute start time of the first segment of the job in ticks</param>
/// <param name="offset">The total timespan in ticks of all previous segments in this job</param>
/// <param name="wmWriter">Windows Media Writer object to write to. We assume it has been preconfigured and started.</param>
/// <param name="progressTracker">Where to put UI status updates</param>
/// <param name="logMgr">Where to put log messages</param>
/// <param name="profileData">compressed media types we are writing to in the norecompression case</param>
public WMSegment(ArchiveTranscoderJob job, ArchiveTranscoderJobSegment segment,
long jobStart, long offset, WMWriter wmWriter,
ProgressTracker progressTracker, LogMgr logMgr, ProfileData profileData, bool norecompression,
WMSegment previousSegment)
{
cancel = false;
this.logMgr = logMgr;
this.job = job;
this.segment = segment;
this.offset = offset;
this.jobStart = jobStart;
this.progressTracker = progressTracker;
this.profileData = profileData;
this.norecompression = norecompression;
this.m_PreviousSegment = previousSegment;
videoStream = null;
slideStream = null;
audioStreams = null;
presentationMgr = null;
writer = wmWriter;
startTime = endTime = DateTime.MinValue;
startTime = DateTime.Parse(segment.StartTime);
endTime = DateTime.Parse(segment.EndTime);
useSlideStream = false;
if (Utility.SegmentFlagIsSet(segment, SegmentFlags.SlidesReplaceVideo))
{
useSlideStream = true;
}
}
/// <summary>
/// For the case where we are handed an existing segment to edit, we want to find out which conference
/// it belongs to. Assume the tree view has already been filled in from the database. Just walk the tree until we find
/// a match, or until we get to the end. An alternative approach would be to store this information with
/// the segment, but we currently don't because I believe it is relevant only in this form.
/// </summary>
/// <param name="segment"></param>
/// <returns></returns>
private String GetCurrentConfString(ArchiveTranscoderJobSegment segment)
{
DateTime start = DateTime.MinValue;
DateTime end = DateTime.MinValue;
try
{
start = DateTime.Parse(segment.StartTime);
end = DateTime.Parse(segment.EndTime);
}
catch
{
return("");
}
//consider it a match if the time is within range and at least one cname matches.
String cname = "";
if ((segment.VideoDescriptor != null) &&
(segment.VideoDescriptor.VideoCname != null) &&
(segment.VideoDescriptor.VideoCname != ""))
{
cname = segment.VideoDescriptor.VideoCname;
}
else if ((segment.AudioDescriptor != null) && (segment.AudioDescriptor.Length > 0))
{
cname = segment.AudioDescriptor[0].AudioCname;
}
if ((cname == null) || (cname == ""))
{
return("");
}
foreach (TreeNode node in this.treeViewSources.Nodes)
{
if (node.Tag is Conference)
{
Conference c = (Conference)node.Tag;
//Require that either the start or the end be within the range of the conference.
if (((c.Start <= start) && (c.End >= start)) ||
((c.Start <= end) && (c.End >= end)))
{
foreach (TreeNode pnode in node.Nodes)
{
if (pnode.Tag is Participant)
{
if (((Participant)(pnode.Tag)).CName == cname)
{
return(c.Start.ToString() + " - " + c.Description);
}
}
}
}
}
}
return("");
}
public PreviewForm(ArchiveTranscoderJobSegment segment, String sqlHost, String dbName)
{
InitializeComponent();
this.sqlHost = sqlHost;
this.dbName = dbName;
this.segment = segment;
this.textBoxStartTime.Text = segment.StartTime;
this.textBoxDuration.Text = "300";
useSlideStream = false;
Debug.WriteLine("WMP Version: " + this.axWindowsMediaPlayer1.versionInfo);
if (segment.VideoDescriptor != null)
{
this.videoStreamGroup = new StreamGroup(segment.VideoDescriptor);
this.labelVideoSource.Text = videoStreamGroup.ToString();
}
else
{
if (Utility.SegmentFlagIsSet(segment, SegmentFlags.SlidesReplaceVideo))
{
this.videoStreamGroup = new StreamGroup(segment.PresentationDescriptor.PresentationCname, "Presentation Slides", "dynamicVideo");
useSlideStream = true;
}
else
{
Debug.Assert(false);
}
this.labelVideoSource.Text = "[Presentation] " + videoStreamGroup.Cname;
}
bool itemChecked = false;
closing = false;
//We prefer to default to an audio cname that matches the video cname if possible.
for (int i = 0; i < segment.AudioDescriptor.Length; i++)
{
if (segment.AudioDescriptor[i].AudioCname == videoStreamGroup.Cname)
{
this.checkedListBoxAudioSources.Items.Add(new StreamGroup(segment.AudioDescriptor[i]), CheckState.Checked);
itemChecked = true;
}
else
{
this.checkedListBoxAudioSources.Items.Add(new StreamGroup(segment.AudioDescriptor[i]), CheckState.Unchecked);
}
}
//..otherwise just use the first one.
if (!itemChecked)
{
if (this.checkedListBoxAudioSources.Items.Count > 0)
{
this.checkedListBoxAudioSources.SetItemCheckState(0, CheckState.Checked);
}
}
this.setToolTips();
}
public SegmentForm(ConferenceDataCache confDataCache)
{
InitializeComponent();
this.setToolTips();
segment = null;
slideDecks = null;
this.confDataCache = confDataCache;
this.sqlHost = confDataCache.SqlServer;
this.dbName = confDataCache.DbName;
}
/// <summary>
/// Construct and return a ProfileData instance
/// containing media type and codec private data for audio and video as
/// determined using the first audio and video frames referenced by the segment.
/// Audio sources in the segment other than the first will be ignored.
/// </summary>
/// <param name="segment"></param>
/// <returns></returns>
public static ProfileData SegmentToProfileData(ArchiveTranscoderJobSegment segment)
{
DateTime startDt = DateTime.Parse(segment.StartTime);
DateTime endDt = DateTime.Parse(segment.EndTime);
byte[] aframe = DatabaseUtility.GetFirstFrame(PayloadType.dynamicAudio, segment.AudioDescriptor[0].AudioCname,
segment.AudioDescriptor[0].AudioName, startDt.Ticks, endDt.Ticks);
if (Utility.SegmentFlagIsSet(segment, SegmentFlags.SlidesReplaceVideo))
{
return(AudioFrameToProfileData(aframe));
}
else
{
byte[] vframe = DatabaseUtility.GetFirstFrame(PayloadType.dynamicVideo, segment.VideoDescriptor.VideoCname,
segment.VideoDescriptor.VideoName, startDt.Ticks, endDt.Ticks);
return(FramesToProfileData(aframe, vframe));
}
}
/// <summary>
/// If the segment has the specified flag set, return true.
/// </summary>
/// <param name="segment"></param>
/// <param name="flag"></param>
/// <returns></returns>
public static bool SegmentFlagIsSet(ArchiveTranscoderJobSegment segment, SegmentFlags flag)
{
if (segment != null)
{
if (segment.Flags != null)
{
foreach (string s in segment.Flags)
{
if (s != null)
{
if (Enum.GetName(typeof(SegmentFlags), flag).ToLower() == s.Trim().ToLower())
{
return(true);
}
}
}
}
}
return(false);
}
/// <summary>
/// Add the specified flag to segment flags. If the flag is already set, do nothing.
/// </summary>
/// <param name="segment"></param>
/// <param name="flag"></param>
public static void SetSegmentFlag(ArchiveTranscoderJobSegment segment, SegmentFlags flag)
{
if (segment != null)
{
if (segment.Flags == null)
{
segment.Flags = new String[1];
segment.Flags[0] = Enum.GetName(typeof(SegmentFlags), flag);
}
else
{
if (SegmentFlagIsSet(segment, flag))
{
return;
}
String[] newFlags = new String[segment.Flags.Length + 1];
segment.Flags.CopyTo(newFlags, 0);
newFlags[newFlags.Length - 1] = Enum.GetName(typeof(SegmentFlags), flag);
segment.Flags = newFlags;
}
}
}
public SegmentWrapper(ArchiveTranscoderJobSegment segment)
{
this.segment = segment;
starttime = DateTime.Parse(segment.StartTime);
}
public SlideStreamMgr(ArchiveTranscoderJob job, ArchiveTranscoderJobSegment segment,
LogMgr logMgr, double fps, int width, int height)
{
this.job = job;
this.segment = segment;
this.logMgr = logMgr;
if (width > 0 && height > 0)
{
this.outputWidth = width;
this.outputHeight = height;
}
this.ticksBetweenFrames = (long)((double)Constants.TicksPerSec / fps);
uncompressedMT = getUncompressedMT(this.outputWidth, this.outputHeight, fps);
cancel = false;
initialized = false;
pptInstalled = Utility.CheckPptIsInstalled();
if ((!DateTime.TryParse(segment.StartTime, out start)) ||
(!DateTime.TryParse(segment.EndTime, out end)))
{
throw(new System.Exception("Failed to parse start/end time"));
}
this.nextFrameTime = start.Ticks;
format = Utility.StringToPresenterWireFormatType(segment.PresentationDescriptor.PresentationFormat);
payload = Utility.formatToPayload(format);
cname = segment.PresentationDescriptor.PresentationCname;
slideImageMgr = new SlideImageMgr(format, this.outputWidth, this.outputHeight);
//Get the start time for the entire conference and use that to get streams.
long confStart = DatabaseUtility.GetConferenceStartTime(payload, cname, start.Ticks, end.Ticks);
if (confStart <= 0)
{
logMgr.WriteLine("Warning: No conference exists in the database that matches this presentation: " + cname +
" with PresentationFormat " + format.ToString());
logMgr.ErrorLevel = 7;
confStart = start.Ticks;
}
//Get the relevant stream_id's and create DBStreamPlayers for each.
streamIDs = DatabaseUtility.GetStreams(payload, segment.PresentationDescriptor.PresentationCname, null, confStart, end.Ticks);
DateTime sdt = new DateTime(confStart);
Debug.WriteLine("***Conference start: " + sdt.ToString() + " end: " + end.ToString());
if ((streamIDs == null) || (streamIDs.Length == 0))
{
Debug.WriteLine("No presentation data found.");
logMgr.WriteLine("Warning: No presentation data was found for the given time range for " +
cname + " with PresentationFormat " + format.ToString());
logMgr.ErrorLevel = 7;
streamPlayers = null;
return;
}
streamPlayers = new DBStreamPlayer[streamIDs.Length];
for (int i = 0; i < streamIDs.Length; i++)
{
streamPlayers[i] = new DBStreamPlayer(streamIDs[i], confStart, end.Ticks, payload);
}
lookBehindDuration = 0;
if (streamPlayers[0].Start < start)
{
lookBehindDuration = ((TimeSpan)(start - streamPlayers[0].Start)).TotalSeconds;
}
}
private void buttonPreview_Click(object sender, System.EventArgs e)
{
//This button should not be enabled unless there is at least one audio, one video, and a time range.
DateTime start = DateTime.MinValue;
DateTime end = DateTime.MinValue;
if (!validate(out start, out end))
{
return;
}
segment = new ArchiveTranscoderJobSegment();
//segment.StartTime = start.ToString(Constants.dtformat);
//segment.EndTime = end.ToString(Constants.dtformat);
segment.StartTime = Utility.GetLocalizedDateTimeString(start, Constants.timeformat);
segment.EndTime = Utility.GetLocalizedDateTimeString(end, Constants.timeformat);
if (this.listBoxVideoSource.Items[0] is StreamGroup)
{
segment.VideoDescriptor = ((StreamGroup)this.listBoxVideoSource.Items[0]).ToVideoDescriptor();
}
segment.AudioDescriptor = new ArchiveTranscoderJobSegmentAudioDescriptor[this.listBoxAudioSources.Items.Count];
for (int i = 0; i < this.listBoxAudioSources.Items.Count; i++)
{
segment.AudioDescriptor[i] = ((StreamGroup)this.listBoxAudioSources.Items[i]).ToAudioDescriptor();
}
if ((this.listBoxPresentationSource.Items.Count == 1) && (checkBoxSlidesReplaceVideo.Checked))
{
if (!validateDecks(sender, e))
{
return;
}
segment.PresentationDescriptor = ((StreamGroup)this.listBoxPresentationSource.Items[0]).ToPresentationDescriptor();
if (slideDecks != null)
{
segment.SlideDecks = new ArchiveTranscoderJobSlideDeck[slideDecks.Length];
for (int i = 0; i < slideDecks.Length; i++)
{
segment.SlideDecks[i] = new ArchiveTranscoderJobSlideDeck();
segment.SlideDecks[i].DeckGuid = slideDecks[i].DeckGuid.ToString();
segment.SlideDecks[i].Title = slideDecks[i].FileName;
if (slideDecks[i].Matched)
{
segment.SlideDecks[i].Path = slideDecks[i].Path;
}
}
}
Utility.SetSegmentFlag(segment, SegmentFlags.SlidesReplaceVideo);
}
this.Cursor = Cursors.WaitCursor;
PreviewForm previewForm = new PreviewForm(segment, sqlHost, dbName);
this.Cursor = Cursors.Default;
if (DialogResult.OK == previewForm.ShowDialog(this))
{
if (previewForm.MarkIn != DateTime.MinValue)
{
//this.textBoxStart.Text = previewForm.MarkIn.ToString(Constants.dtformat);
this.textBoxStart.Text = Utility.GetLocalizedDateTimeString(previewForm.MarkIn, Constants.timeformat);
}
if (previewForm.MarkOut != DateTime.MinValue)
{
//this.textBoxEnd.Text = previewForm.MarkOut.ToString(Constants.dtformat);
this.textBoxEnd.Text = Utility.GetLocalizedDateTimeString(previewForm.MarkOut, Constants.timeformat);
}
}
}
private void buttonOk_Click(object sender, System.EventArgs e)
{
DateTime start = DateTime.MinValue;
DateTime end = DateTime.MinValue;
if (!validate(out start, out end))
{
return;
}
//Warn if slide decks don't exist or are not matched.
if (!validateDecks(sender, e))
{
return;
}
segment = new ArchiveTranscoderJobSegment();
//segment.StartTime = start.ToString(Constants.dtformat);
segment.StartTime = Utility.GetLocalizedDateTimeString(start, Constants.timeformat);
//segment.EndTime = end.ToString(Constants.dtformat);
segment.EndTime = Utility.GetLocalizedDateTimeString(end, Constants.timeformat);
if (this.listBoxVideoSource.Items.Count == 1)
{
if (this.listBoxVideoSource.Items[0] is StreamGroup)
{
segment.VideoDescriptor = ((StreamGroup)this.listBoxVideoSource.Items[0]).ToVideoDescriptor();
}
else
{
segment.VideoDescriptor = null;
}
}
segment.AudioDescriptor = new ArchiveTranscoderJobSegmentAudioDescriptor[this.listBoxAudioSources.Items.Count];
for (int i = 0; i < this.listBoxAudioSources.Items.Count; i++)
{
segment.AudioDescriptor[i] = ((StreamGroup)this.listBoxAudioSources.Items[i]).ToAudioDescriptor();
}
if (this.listBoxPresentationSource.Items.Count == 1)
{
segment.PresentationDescriptor = ((StreamGroup)this.listBoxPresentationSource.Items[0]).ToPresentationDescriptor();
if (slideDecks != null)
{
segment.SlideDecks = new ArchiveTranscoderJobSlideDeck[slideDecks.Length];
for (int i = 0; i < slideDecks.Length; i++)
{
segment.SlideDecks[i] = new ArchiveTranscoderJobSlideDeck();
segment.SlideDecks[i].DeckGuid = slideDecks[i].DeckGuid.ToString();
segment.SlideDecks[i].Title = slideDecks[i].FileName;
if (slideDecks[i].Matched)
{
segment.SlideDecks[i].Path = slideDecks[i].Path;
}
}
}
if (checkBoxSlidesReplaceVideo.Checked)
{
Utility.SetSegmentFlag(segment, SegmentFlags.SlidesReplaceVideo);
}
}
this.DialogResult = DialogResult.OK;
this.Close();
}
/// <summary>
/// Load an existing segment for editing.
/// Return true if the segment appears to match a conference in the database.
/// </summary>
/// <param name="segment"></param>
public bool LoadSegment(ArchiveTranscoderJobSegment segment)
{
//fill in the form controls with existing data
this.segment = segment;
if ((segment.VideoDescriptor != null) &&
(segment.VideoDescriptor.VideoCname != null) &&
(segment.VideoDescriptor.VideoCname != ""))
{
this.listBoxVideoSource.Items.Add(new StreamGroup(segment.VideoDescriptor));
}
if ((segment.PresentationDescriptor != null) &&
(segment.PresentationDescriptor.PresentationCname != null) &&
(segment.PresentationDescriptor.PresentationCname != ""))
{
if (segment.PresentationDescriptor.VideoDescriptor == null)
{
this.listBoxPresentationSource.Items.Add(new StreamGroup(segment.PresentationDescriptor));
this.buttonRemovePresentation.Enabled = true;
this.buttonDeckMatcher.Enabled = true;
if (segment.SlideDecks != null)
{
slideDecks = new Deck[segment.SlideDecks.Length];
for (int i = 0; i < segment.SlideDecks.Length; i++)
{
slideDecks[i] = new Deck(segment.SlideDecks[i]);
}
}
this.checkBoxSlidesReplaceVideo.Enabled = true;
if (Utility.SegmentFlagIsSet(segment, SegmentFlags.SlidesReplaceVideo))
{
this.checkBoxSlidesReplaceVideo.Checked = true;
//Other config is done by the check changed handler.
}
}
else
{
//This is for building presentation from video stills.
this.listBoxPresentationSource.Items.Add(new StreamGroup(segment.PresentationDescriptor.VideoDescriptor));
this.buttonRemovePresentation.Enabled = false;
this.buttonDeckMatcher.Enabled = false;
this.checkBoxSlidesReplaceVideo.Enabled = false;
this.buttonRemovePresentation.Enabled = true;
}
}
else
{
this.checkBoxSlidesReplaceVideo.Enabled = false;
}
if ((segment.AudioDescriptor != null) && (segment.AudioDescriptor.Length > 0))
{
for (int i = 0; i < segment.AudioDescriptor.Length; i++)
{
if ((segment.AudioDescriptor[i].AudioCname != null) && (segment.AudioDescriptor[i].AudioCname != ""))
{
this.listBoxAudioSources.Items.Add(new StreamGroup(segment.AudioDescriptor[i]));
}
}
}
this.textBoxStart.Text = segment.StartTime;
this.textBoxEnd.Text = segment.EndTime;
String confStr = GetCurrentConfString(segment);
if (confStr != "")
{
this.listBoxConference.Items.Add(confStr);
}
else
{
this.listBoxConference.Items.Add("Unavailable Conference!");
}
if ((this.listBoxAudioSources.Items.Count > 0) && (this.listBoxVideoSource.Items.Count > 0))
{
this.buttonPreview.Enabled = true;
this.buttonOk.Enabled = true;
}
if (confStr == "")
{
return(false);
}
return(true);
}
