private static void Service_TeletextPageCleared(object sender, EventArgs e)
{
var ttxE = (TeletextPageClearedEventArgs)e;
if (_decodedSubtitlePage?.PageNum == ttxE.PageNumber)
{
_decodedSubtitlePage = null;
}
}
public static void InitializeStaticFields(int packetId, int pageNumberBcd)
{
_config = new Config {
Page = pageNumberBcd, Tid = packetId
};
_primaryCharset = new PrimaryCharset();
_transmissionMode = TransmissionMode.TransmissionModeSerial;
_receivingData = false;
_states = new States();
_pageBuffer = new TeletextPage();
}
private static void Service_TeletextPageReady(object sender, EventArgs e)
{
var ttxE = (TeletextPageReadyEventArgs)e;
if (ttxE == null)
{
return;
}
_decodedSubtitlePage = ttxE.Page;
}
/// <summary>
/// Retrieve the new page from the server
/// </summary>
protected void GetNewPage()
{
int sub = currentSubPageNumber;
int maxSubs = _receivedTeletextPage == null ? 1 : _receivedTeletextPage.SubPageCount;
// Check if the page is available
if (maxSubs <= 0)
{
if (_receivedTeletextPage != null && _receivedTeletextPage.Content != null && !_waiting)
{
bmpTeletextPage = _renderer.RenderPage(_receivedTeletextPage.Content, receivedPageNumber, receivedSubPageNumber);
Log.Info("dvb-teletext: received page {0:X} / subpage {1:X}", receivedPageNumber, receivedSubPageNumber);
}
Redraw();
return;
}
if (sub >= maxSubs)
{
sub = maxSubs - 1;
}
// Get the page
TeletextPage teletextPage = PluginMain.Navigator.GetTeletextPage(currentPageNumber, sub);
// Was the page available, then render it. Otherwise render the last page again and update the header line, if
// it was for the first time
if (teletextPage != null)
{
_receivedTeletextPage = teletextPage;
receivedPageNumber = currentPageNumber;
receivedSubPageNumber = currentSubPageNumber;
bmpTeletextPage = _renderer.RenderPage(_receivedTeletextPage.Content, _receivedTeletextPage.PageNumber, sub);
_waiting = false;
Log.Info("dvb-teletext: select page {0:X} / subpage {1:X}", currentPageNumber, currentSubPageNumber);
}
else
{
if (_receivedTeletextPage != null && _receivedTeletextPage.Content != null && !_waiting)
{
bmpTeletextPage = _renderer.RenderPage(_receivedTeletextPage.Content, receivedPageNumber, receivedSubPageNumber);
Log.Info("dvb-teletext: received page {0:X} / subpage {1:X}", receivedPageNumber, receivedSubPageNumber);
}
_waiting = true;
}
Redraw();
}
/// <summary>
/// Loads the logo page from the assembly
/// </summary>
protected void LoadLogoPage()
{
Assembly assm = Assembly.GetExecutingAssembly();
Stream stream = assm.GetManifestResourceStream("ArgusTV.UI.MediaPortal.TeletextLogoPage");
if (stream != null)
{
using (BinaryReader reader = new BinaryReader(stream))
{
_receivedTeletextPage = new TeletextPage();
byte[] teletextPageBytes = new byte[stream.Length];
reader.Read(teletextPageBytes, 0, (int)stream.Length);
_receivedTeletextPage.Content = teletextPageBytes;
_receivedTeletextPage.PageNumber = 0;
_receivedTeletextPage.SubPageNumber = 0;
}
}
}
static void ProcessPage(TeletextPage page, TeletextRunSettings teletextRunSettings, int pageNumber)
{
#if DEBUG
for (int row = 1; row < 25; row++)
{
_config.LogInfoNoNewLine($"# DEBUG[{row}]: ");
for (int col = 0; col < 40; col++)
{
_config.LogInfo($"{(page.Text[row, col]):X2} ");
}
_config.LogInfo(string.Empty);
}
_config.LogInfo(string.Empty);
#endif
// optimization: slicing column by column -- higher probability we could find boxed area start mark sooner
bool pageIsEmpty = true;
for (var col = 0; col < 40; col++)
{
for (var row = 1; row < 25; row++)
{
if (page.Text[row, col] == 0x0b)
{
pageIsEmpty = false;
break;
}
}
}
if (pageIsEmpty)
{
return;
}
var paragraph = new Paragraph();
var usedLines = new List <int>();
var sb = new StringBuilder();
if (page.ShowTimestamp > page.HideTimestamp)
{
page.HideTimestamp = page.ShowTimestamp;
}
paragraph.StartTime = new TimeCode(page.ShowTimestamp);
paragraph.EndTime = new TimeCode(page.HideTimestamp);
// process data
for (var row = 1; row < 25; row++)
{
// anchors for string trimming purpose
var colStart = 40;
var colStop = 40;
bool boxOpen = false;
for (var col = 0; col < 40; col++)
{
// replace all 0/B and 0/A characters with 0/20, as specified in ETS 300 706:
// Unless operating in "Hold Mosaics" mode, each character space occupied by a
// spacing attribute is displayed as a SPACE
if (page.Text[row, col] == 0xb) // open the box
{
if (colStart == 40)
{
colStart = col;
}
else
{
page.Text[row, col] = 0x20;
}
boxOpen = true;
}
else if (page.Text[row, col] == 0xa) // close the box
{
page.Text[row, col] = 0x20;
boxOpen = false;
}
// characters between 0xA and 0xB shouldn't be displayed
// page->text[row][col] > 0x20 added to preserve color information
else if (!boxOpen && colStart < 40 && page.Text[row, col] > 0x20)
{
page.Text[row, col] = 0x20;
}
}
// line is empty
if (colStart > 39)
{
continue;
}
for (var col = colStart + 1; col <= 39; col++)
{
if (page.Text[row, col] > 0x20)
{
if (colStop > 39)
{
colStart = col;
}
colStop = col;
}
if (page.Text[row, col] == 0xa)
{
break;
}
}
// line is empty
if (colStop > 39)
{
continue;
}
// ETS 300 706, chapter 12.2: Alpha White ("Set-After") - Start-of-row default condition.
// used for color changes _before_ start box mark
// white is default as stated in ETS 300 706, chapter 12.2
// black(0), red(1), green(2), yellow(3), blue(4), magenta(5), cyan(6), white(7)
var foregroundColor = 0x7;
bool fontTagOpened = false;
for (var col = 0; col <= colStop; col++)
{
// v is just a shortcut
var v = page.Text[row, col];
if (col < colStart)
{
if (v <= 0x7)
{
foregroundColor = v;
}
}
if (col == colStart)
{
if (foregroundColor != 0x7 && _config.Colors)
{
sb.Append($"<font color=\"{TeletextColors[foregroundColor]}\">");
fontTagOpened = true;
}
}
if (col >= colStart)
{
if (v <= 0x7)
{
// ETS 300 706, chapter 12.2: Unless operating in "Hold Mosaics" mode,
// each character space occupied by a spacing attribute is displayed as a SPACE.
if (_config.Colors)
{
if (fontTagOpened)
{
sb.Append("</font> ");
fontTagOpened = false;
}
// black is considered as white for telxcc purpose
// telxcc writes <font/> tags only when needed
if (v > 0x0 && v < 0x7)
{
sb.Append($"<font color=\"{TeletextColors[v]}\">");
fontTagOpened = true;
}
}
else
{
v = 0x20;
}
}
if (v >= 0x20)
{
sb.Append(Ucs2ToUtf8(v));
}
}
}
// no tag will left opened!
if (_config.Colors && fontTagOpened)
{
sb.Append("</font>");
}
// line delimiter
sb.Append(Environment.NewLine);
usedLines.Add(row);
}
sb.AppendLine();
var topAlign = usedLines.Count > 0 && usedLines.All(p => p < 6);
paragraph.Text = (topAlign ? "{\\an8}" : "") + sb.ToString().TrimEnd();
if (!teletextRunSettings.PageNumberAndParagraph.ContainsKey(pageNumber))
{
teletextRunSettings.PageNumberAndParagraph.Add(pageNumber, paragraph);
}
else
{
_config.LogError("New pageId in page: " + pageNumber);
}
}
/// <summary>
/// Loads the logo page from the assembly
/// </summary>
protected void LoadLogoPage()
{
Assembly assm = Assembly.GetExecutingAssembly();
Stream stream = assm.GetManifestResourceStream("ForTheRecord.UI.MediaPortal.TeletextLogoPage");
if (stream != null)
{
using (BinaryReader reader = new BinaryReader(stream))
{
_receivedTeletextPage = new TeletextPage();
byte[] teletextPageBytes = new byte[stream.Length];
reader.Read(teletextPageBytes, 0, (int)stream.Length);
_receivedTeletextPage.Content = teletextPageBytes;
_receivedTeletextPage.PageNumber = 0;
_receivedTeletextPage.SubPageNumber = 0;
}
}
}
/// <summary>
/// Retrieve the new page from the server
/// </summary>
protected void GetNewPage()
{
int sub = currentSubPageNumber;
int maxSubs = _receivedTeletextPage == null ? 1 : _receivedTeletextPage.SubPageCount;
// Check if the page is available
if (maxSubs <= 0)
{
if (_receivedTeletextPage != null && _receivedTeletextPage.Content != null && !_waiting)
{
bmpTeletextPage = _renderer.RenderPage(_receivedTeletextPage.Content, receivedPageNumber, receivedSubPageNumber);
Log.Info("dvb-teletext: received page {0:X} / subpage {1:X}", receivedPageNumber, receivedSubPageNumber);
}
Redraw();
return;
}
if (sub >= maxSubs)
{
sub = maxSubs - 1;
}
// Get the page
TeletextPage teletextPage = ForTheRecordMain.Navigator.GetTeletextPage(currentPageNumber, sub);
// Was the page available, then render it. Otherwise render the last page again and update the header line, if
// it was for the first time
if (teletextPage != null)
{
_receivedTeletextPage = teletextPage;
receivedPageNumber = currentPageNumber;
receivedSubPageNumber = currentSubPageNumber;
bmpTeletextPage = _renderer.RenderPage(_receivedTeletextPage.Content, _receivedTeletextPage.PageNumber, sub);
_waiting = false;
Log.Info("dvb-teletext: select page {0:X} / subpage {1:X}", currentPageNumber, currentSubPageNumber);
}
else
{
if (_receivedTeletextPage != null && _receivedTeletextPage.Content != null && !_waiting)
{
bmpTeletextPage = _renderer.RenderPage(_receivedTeletextPage.Content, receivedPageNumber, receivedSubPageNumber);
Log.Info("dvb-teletext: received page {0:X} / subpage {1:X}", receivedPageNumber, receivedSubPageNumber);
}
_waiting = true;
}
Redraw();
}
