/// <summary>
/// Update the subtitle texture from a Bitmap.
/// </summary>
/// <param name="subtitle"></param>
private void SetSubtitle(Subtitle subtitle)
{
Texture texture = null;
ServiceRegistration.Get<ILogger>().Debug("SubtitleRenderer: SetSubtitle : " + subtitle);
if (subtitle != null)
{
try
{
Bitmap bitmap = subtitle.SubBitmap;
if (bitmap != null)
{
using (MemoryStream stream = new MemoryStream())
{
ImageInformation imageInformation;
bitmap.Save(stream, ImageFormat.Bmp);
stream.Position = 0;
texture = Texture.FromStream(_device, stream, (int) stream.Length, (int) subtitle.Width,
(int) subtitle.Height, 1,
Usage.Dynamic, Format.A8R8G8B8, Pool.Default, Filter.None, Filter.None, 0,
out imageInformation);
}
// Free bitmap
FilterGraphTools.TryDispose(ref subtitle.SubBitmap);
}
}
catch (Exception e)
{
ServiceRegistration.Get<ILogger>().Error("SubtitleRenderer: Failed to create subtitle texture!!!", e);
return;
}
}
// Set new subtitle
lock (_syncObj)
{
// Dispose of old subtitle
FilterGraphTools.TryDispose(ref _subTexture);
_subTexture = texture;
_currentSubtitle = subtitle;
}
}
private void SetMatchingSubTitle()
{
lock (_syncObj)
{
if (_player == null)
return;
if (_clearOnNextRender)
{
_clearOnNextRender = false;
_currentSubtitle = null;
FilterGraphTools.TryDispose(ref _subTexture);
}
if (_renderSubtitles == false)
return;
}
double currentTime = _player.CurrentTime.TotalSeconds;
Subtitle currentSubtitle;
lock (_syncObj)
{
_currentTime = currentTime;
currentSubtitle = _currentSubtitle;
}
// If we currently have a subtitle an it is in current time, no need to look for another one yet
if (currentSubtitle != null && currentSubtitle.PresentTime <= currentTime && currentTime <= currentSubtitle.PresentTime + currentSubtitle.TimeOut)
{
currentSubtitle.ShouldDraw = true;
return;
}
// If we have already a sub in queue, wait until it's time to show
if (currentSubtitle != null && currentSubtitle.PresentTime > currentTime)
{
currentSubtitle.ShouldDraw = false;
return;
}
// Check for waiting subs
lock (_syncObj)
{
while (_subtitles.Count > 0)
{
Subtitle next = _subtitles.First.Value;
// if the next should be displayed now or previously
if (next.PresentTime <= currentTime)
{
// remove from queue
_subtitles.RemoveFirst();
// if it is not too late for this sub to be displayed, break
if (next.PresentTime + next.TimeOut >= currentTime)
{
next.ShouldDraw = true;
SetSubtitle(next);
return;
}
}
else
break;
}
}
if (currentSubtitle != null)
SetSubtitle(null);
}
// Currently unused, teletext subtitles are not yet (re-)implemented!
public void OnTextSubtitle(ref TextSubtitle sub)
{
ServiceRegistration.Get<ILogger>().Debug("On TextSubtitle called");
try
{
if (sub.Page == _activeSubPage)
{
ServiceRegistration.Get<ILogger>().Debug("Page: " + sub.Page);
ServiceRegistration.Get<ILogger>().Debug("Character table: " + sub.Encoding);
ServiceRegistration.Get<ILogger>().Debug("Timeout: " + sub.TimeOut);
ServiceRegistration.Get<ILogger>().Debug("Timestamp" + sub.TimeStamp);
ServiceRegistration.Get<ILogger>().Debug("Language: " + sub.Language);
String content = sub.Text;
if (content == null)
{
ServiceRegistration.Get<ILogger>().Error("OnTextSubtitle: sub.txt == null!");
return;
}
}
}
catch (Exception e)
{
ServiceRegistration.Get<ILogger>().Error("Problem with TEXT_SUBTITLE");
ServiceRegistration.Get<ILogger>().Error(e);
}
try
{
// if we dont need the subtitle
if (!_renderSubtitles || _useBitmap || (_activeSubPage != sub.Page))
{
ServiceRegistration.Get<ILogger>().Debug("Text subtitle (page {0}) discarded: useBitmap is {1} and activeSubPage is {2}", sub.Page, _useBitmap, _activeSubPage);
return;
}
ServiceRegistration.Get<ILogger>().Debug("Text subtitle (page {0}) ACCEPTED: useBitmap is {1} and activeSubPage is {2}", sub.Page, _useBitmap, _activeSubPage);
Subtitle subtitle = new Subtitle
{
SubBitmap = RenderText(sub.LineContents),
TimeOut = sub.TimeOut,
PresentTime = sub.TimeStamp / 90000.0f + _startPos,
Height = (uint) SkinContext.SkinResources.SkinHeight,
Width = (uint) SkinContext.SkinResources.SkinWidth,
FirstScanLine = 0
};
lock (_subtitles)
{
while (_subtitles.Count >= MAX_SUBTITLES_IN_QUEUE)
{
ServiceRegistration.Get<ILogger>().Debug("SubtitleRenderer: Subtitle queue too big, discarding first element");
_subtitles.RemoveFirst();
}
_subtitles.AddLast(subtitle);
ServiceRegistration.Get<ILogger>().Debug("SubtitleRenderer: Text subtitle added, now have {0} subtitles in cache {1} pos on last render was {2}", _subtitles.Count, subtitle, _currentTime);
}
}
catch (Exception e)
{
ServiceRegistration.Get<ILogger>().Error("Problem processing text subtitle");
ServiceRegistration.Get<ILogger>().Error(e);
}
}
protected virtual Subtitle ToSubtitle(IntPtr nativeSubPtr)
{
NativeSubtitle nativeSub = (NativeSubtitle) Marshal.PtrToStructure(nativeSubPtr, typeof(NativeSubtitle));
Subtitle subtitle = new Subtitle
{
SubBitmap = new Bitmap(nativeSub.Width, nativeSub.Height, PixelFormat.Format32bppArgb),
TimeOut = nativeSub.TimeOut,
PresentTime = ((double) nativeSub.TimeStamp / 1000.0f) + _startPos,
Height = (uint) nativeSub.Height,
Width = (uint) nativeSub.Width,
ScreenWidth = nativeSub.ScreenWidth,
FirstScanLine = nativeSub.FirstScanLine,
Id = _subCounter++
};
CopyBits(nativeSub.Bits, ref subtitle.SubBitmap, nativeSub.Width, nativeSub.Height, nativeSub.WidthBytes);
return subtitle;
}
// Currently unused, teletext subtitles are not yet (re-)implemented!
public void OnTextSubtitle(ref TextSubtitle sub)
{
ServiceRegistration.Get <ILogger>().Debug("On TextSubtitle called");
try
{
if (sub.Page == _activeSubPage)
{
ServiceRegistration.Get <ILogger>().Debug("Page: " + sub.Page);
ServiceRegistration.Get <ILogger>().Debug("Character table: " + sub.Encoding);
ServiceRegistration.Get <ILogger>().Debug("Timeout: " + sub.TimeOut);
ServiceRegistration.Get <ILogger>().Debug("Timestamp" + sub.TimeStamp);
ServiceRegistration.Get <ILogger>().Debug("Language: " + sub.Language);
String content = sub.Text;
if (content == null)
{
ServiceRegistration.Get <ILogger>().Error("OnTextSubtitle: sub.txt == null!");
return;
}
}
}
catch (Exception e)
{
ServiceRegistration.Get <ILogger>().Error("Problem with TEXT_SUBTITLE");
ServiceRegistration.Get <ILogger>().Error(e);
}
try
{
// if we dont need the subtitle
if (!_renderSubtitles || _useBitmap || (_activeSubPage != sub.Page))
{
ServiceRegistration.Get <ILogger>().Debug("Text subtitle (page {0}) discarded: useBitmap is {1} and activeSubPage is {2}", sub.Page, _useBitmap, _activeSubPage);
return;
}
ServiceRegistration.Get <ILogger>().Debug("Text subtitle (page {0}) ACCEPTED: useBitmap is {1} and activeSubPage is {2}", sub.Page, _useBitmap, _activeSubPage);
Subtitle subtitle = new Subtitle(_device)
{
SubBitmap = RenderText(sub.LineContents),
TimeOut = sub.TimeOut,
PresentTime = sub.TimeStamp / 90000.0f + _startPos,
Height = (uint)SkinContext.SkinResources.SkinHeight,
Width = (uint)SkinContext.SkinResources.SkinWidth,
FirstScanLine = 0
};
lock (_subtitles)
{
while (_subtitles.Count >= MAX_SUBTITLES_IN_QUEUE)
{
ServiceRegistration.Get <ILogger>().Debug("SubtitleRenderer: Subtitle queue too big, discarding first element");
_subtitles.RemoveFirst();
}
_subtitles.AddLast(subtitle);
ServiceRegistration.Get <ILogger>().Debug("SubtitleRenderer: Text subtitle added, now have {0} subtitles in cache {1} pos on last render was {2}", _subtitles.Count, subtitle, _currentTime);
}
}
catch (Exception e)
{
ServiceRegistration.Get <ILogger>().Error("Problem processing text subtitle");
ServiceRegistration.Get <ILogger>().Error(e);
}
}
