mirror of https://github.com/VDR4Arch/vdr.git
Added support for PGS subtitles
This commit is contained in:
Klaus Schmidinger
parent
b454a0777f
commit
7062583ab4
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@ -3270,6 +3270,7 @@ Thomas Reufer <thomas@reufer.ch>
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for fixing a possible crash in the LCARS skin
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for implementing cOsd::DrawScaledBitmap()
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for adding handling for DTS audio tracks to cPatPmtParser::ParsePmt()
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for adding support for PGS subtitles
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Eike Sauer <EikeSauer@t-online.de>
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for reporting a problem with channels that need more than 5 TS packets for detecting
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1
HISTORY
1
HISTORY
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@ -8360,3 +8360,4 @@ Video Disk Recorder Revision History
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- Now handling CAT sections that consist of more than one TS packet.
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- Added handling for DTS audio tracks to cPatPmtParser::ParsePmt() (thanks to
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Thomas Reufer).
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- Added support for PGS subtitles (thanks to Thomas Reufer).
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282
dvbsubtitle.c
282
dvbsubtitle.c
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@ -7,7 +7,7 @@
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* Original author: Marco Schluessler <marco@lordzodiac.de>
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* With some input from the "subtitles plugin" by Pekka Virtanen <pekka.virtanen@sci.fi>
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*
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* $Id: dvbsubtitle.c 3.7 2015/01/09 11:56:25 kls Exp $
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* $Id: dvbsubtitle.c 3.8 2015/01/14 10:30:50 kls Exp $
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*/
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#include "dvbsubtitle.h"
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@ -25,6 +25,12 @@
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#define END_OF_DISPLAY_SET_SEGMENT 0x80
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#define STUFFING_SEGMENT 0xFF
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#define PGS_PALETTE_SEGMENT 0x14
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#define PGS_OBJECT_SEGMENT 0x15
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#define PGS_PRESENTATION_SEGMENT 0x16
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#define PGS_WINDOW_SEGMENT 0x17
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#define PGS_DISPLAY_SEGMENT 0x80
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// Set these to 'true' for debug output, which is written into the file dbg-log.htm
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// in the current working directory. The HTML file shows the actual bitmaps (dbg-nnn.jpg)
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// used to display the subtitles.
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@ -146,6 +152,7 @@ private:
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public:
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cSubtitleClut(int ClutId);
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void Parse(cBitStream &bs);
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void ParsePgs(cBitStream &bs);
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int ClutId(void) { return clutId; }
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int ClutVersionNumber(void) { return clutVersionNumber; }
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const cPalette *GetPalette(int Bpp);
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@ -267,6 +274,31 @@ void cSubtitleClut::Parse(cBitStream &bs)
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}
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}
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void cSubtitleClut::ParsePgs(cBitStream &bs)
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{
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int Version = bs.GetBits(8);
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if (clutVersionNumber == Version)
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return; // no update
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clutVersionNumber = Version;
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dbgcluts("<b>clut</b> id %d version %d<br>\n", clutId, clutVersionNumber);
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for (int i = 0; i < 256; ++i)
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SetColor(8, i, ArgbToColor(0, 0, 0, 0));
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while (!bs.IsEOF()) {
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uchar clutEntryId = bs.GetBits(8);
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uchar yval = bs.GetBits(8);
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uchar crval = bs.GetBits(8);
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uchar cbval = bs.GetBits(8);
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uchar tval = bs.GetBits(8);
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tColor value = 0;
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if (yval) {
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value = yuv2rgb(yval, cbval, crval);
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value |= ((10 - (clutEntryId ? Setup.SubtitleFgTransparency : Setup.SubtitleBgTransparency)) * tval / 10) << 24;
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}
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dbgcluts("%2d %08X<br>\n", clutEntryId, value);
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SetColor(8, clutEntryId, value);
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}
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}
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tColor cSubtitleClut::yuv2rgb(int Y, int Cb, int Cr)
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{
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int Ey, Epb, Epr;
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@ -314,6 +346,7 @@ private:
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bool nonModifyingColorFlag;
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int topLength;
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int botLength;
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int topIndex;
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uchar *topData;
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uchar *botData;
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char *txtData;
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@ -322,12 +355,14 @@ private:
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bool Decode2BppCodeString(cBitmap *Bitmap, int px, int py, cBitStream *bs, int&x, int y, const uint8_t *MapTable);
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bool Decode4BppCodeString(cBitmap *Bitmap, int px, int py, cBitStream *bs, int&x, int y, const uint8_t *MapTable);
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bool Decode8BppCodeString(cBitmap *Bitmap, int px, int py, cBitStream *bs, int&x, int y);
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bool DecodePgsCodeString(cBitmap *Bitmap, int px, int py, cBitStream *bs, int&x, int y);
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void DecodeSubBlock(cBitmap *Bitmap, int px, int py, const uchar *Data, int Length, bool Even);
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void DecodeCharacterString(const uchar *Data, int NumberOfCodes);
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public:
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cSubtitleObject(int ObjectId);
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~cSubtitleObject();
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void Parse(cBitStream &bs);
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void ParsePgs(cBitStream &bs);
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int ObjectId(void) { return objectId; }
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int ObjectVersionNumber(void) { return objectVersionNumber; }
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int ObjectCodingMethod(void) { return objectCodingMethod; }
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@ -343,6 +378,7 @@ cSubtitleObject::cSubtitleObject(int ObjectId)
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nonModifyingColorFlag = false;
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topLength = 0;
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botLength = 0;
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topIndex = 0;
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topData = NULL;
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botData = NULL;
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txtData = NULL;
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@ -404,6 +440,29 @@ void cSubtitleObject::Parse(cBitStream &bs)
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}
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}
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void cSubtitleObject::ParsePgs(cBitStream &bs)
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{
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int Version = bs.GetBits(8);
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if (objectVersionNumber == Version)
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return; // no update
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objectVersionNumber = Version;
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objectCodingMethod = 0;
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int sequenceDescriptor = bs.GetBits(8);
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if (!(sequenceDescriptor & 0x80) && topData != NULL) {
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memcpy(topData + topIndex, bs.GetData(), (bs.Length() - bs.Index()) / 8);
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topIndex += (bs.Length() - bs.Index()) / 8;
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return;
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}
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topLength = bs.GetBits(24) - 4 + 1; // exclude width / height, add sub block type
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bs.SkipBits(32);
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if ((topData = MALLOC(uchar, topLength)) != NULL) {
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topData[topIndex++] = 0xFF; // PGS end of line
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memcpy(topData + 1, bs.GetData(), (bs.Length() - bs.Index()) / 8);
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topIndex += (bs.Length() - bs.Index()) / 8 + 1;
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}
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dbgobjects("<b>object</b> id %d version %d method %d modify %d", objectId, objectVersionNumber, objectCodingMethod, nonModifyingColorFlag);
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}
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void cSubtitleObject::DecodeCharacterString(const uchar *Data, int NumberOfCodes)
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{
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// "ETSI EN 300 743 V1.3.1 (2006-11)", chapter 7.2.5 "Object data segment" specifies
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@ -490,6 +549,13 @@ void cSubtitleObject::DecodeSubBlock(cBitmap *Bitmap, int px, int py, const ucha
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x = 0;
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y += 2;
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break;
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case 0xFF:
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dbgpixel("PGS code string, including EOLs<br>\n");
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while (DecodePgsCodeString(Bitmap, px, py, &bs, x, y) && !bs.IsEOF()) {
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x = 0;
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y++;
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}
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break;
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default: dbgpixel("unknown sub block %s %d<br>\n", __FUNCTION__, __LINE__);
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}
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}
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@ -613,6 +679,28 @@ bool cSubtitleObject::Decode8BppCodeString(cBitmap *Bitmap, int px, int py, cBit
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return true;
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}
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bool cSubtitleObject::DecodePgsCodeString(cBitmap *Bitmap, int px, int py, cBitStream *bs, int &x, int y)
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{
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while (!bs->IsEOF()) {
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int color = bs->GetBits(8);
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int rl = 1;
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if (!color) {
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int flags = bs->GetBits(8);
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rl = flags & 0x3f;
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if (flags & 0x40)
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rl = (rl << 8) + bs->GetBits(8);
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color = flags & 0x80 ? bs->GetBits(8) : 0;
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}
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if (rl > 0) {
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DrawLine(Bitmap, px + x, py + y, color, rl);
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x += rl;
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}
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else if (!rl)
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return true;
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}
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return false;
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}
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void cSubtitleObject::Render(cBitmap *Bitmap, int px, int py, tIndex IndexFg, tIndex IndexBg)
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{
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if (objectCodingMethod == 0) { // coding of pixels
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@ -660,7 +748,7 @@ cSubtitleObject *cSubtitleObjects::GetObjectById(int ObjectId, bool New)
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// --- cSubtitleObjectRef ----------------------------------------------------
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class cSubtitleObjectRef : public cListObject {
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private:
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protected:
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int objectId;
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int objectType;
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int objectProviderFlag;
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@ -669,6 +757,7 @@ private:
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int foregroundPixelCode;
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int backgroundPixelCode;
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public:
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cSubtitleObjectRef(void);
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cSubtitleObjectRef(cBitStream &bs);
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int ObjectId(void) { return objectId; }
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int ObjectType(void) { return objectType; }
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@ -679,6 +768,17 @@ public:
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int BackgroundPixelCode(void) { return backgroundPixelCode; }
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};
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cSubtitleObjectRef::cSubtitleObjectRef(void)
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{
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objectId = 0;
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objectType = 0;
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objectProviderFlag = 0;
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objectHorizontalPosition = 0;
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objectVerticalPosition = 0;
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foregroundPixelCode = 0;
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backgroundPixelCode = 0;
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}
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cSubtitleObjectRef::cSubtitleObjectRef(cBitStream &bs)
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{
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objectId = bs.GetBits(16);
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@ -698,6 +798,38 @@ cSubtitleObjectRef::cSubtitleObjectRef(cBitStream &bs)
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dbgregions("<b>objectref</b> id %d type %d flag %d x %d y %d fg %d bg %d<br>\n", objectId, objectType, objectProviderFlag, objectHorizontalPosition, objectVerticalPosition, foregroundPixelCode, backgroundPixelCode);
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}
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// --- cSubtitleObjectRefPgs - PGS variant of cSubtitleObjectRef -------------
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class cSubtitleObjectRefPgs : public cSubtitleObjectRef {
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private:
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int windowId;
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int compositionFlag;
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int cropX;
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int cropY;
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int cropW;
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int cropH;
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public:
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cSubtitleObjectRefPgs(cBitStream &bs);
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};
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cSubtitleObjectRefPgs::cSubtitleObjectRefPgs(cBitStream &bs)
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:cSubtitleObjectRef()
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{
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objectId = bs.GetBits(16);
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windowId = bs.GetBits(8);
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compositionFlag = bs.GetBits(8);
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bs.SkipBits(32); // skip absolute position, object is aligned to region
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if ((compositionFlag & 0x80) != 0) {
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cropX = bs.GetBits(16);
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cropY = bs.GetBits(16);
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cropW = bs.GetBits(16);
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cropH = bs.GetBits(16);
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}
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else
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cropX = cropY = cropW = cropH = 0;
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dbgregions("<b>objectrefPgs</b> id %d flag %d x %d y %d cropX %d cropY %d cropW %d cropH %d<br>\n", objectId, compositionFlag, objectHorizontalPosition, objectVerticalPosition, cropX, cropY, cropW, cropH);
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}
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// --- cSubtitleRegion -------------------------------------------------------
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class cSubtitleRegion : public cListObject {
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@ -717,6 +849,8 @@ private:
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public:
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cSubtitleRegion(int RegionId);
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void Parse(cBitStream &bs);
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void ParsePgs(cBitStream &bs);
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void SetDimensions(int Width, int Height);
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int RegionId(void) { return regionId; }
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int RegionVersionNumber(void) { return regionVersionNumber; }
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bool RegionFillFlag(void) { return regionFillFlag; }
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@ -769,6 +903,24 @@ void cSubtitleRegion::Parse(cBitStream &bs)
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objectRefs.Add(new cSubtitleObjectRef(bs));
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}
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void cSubtitleRegion::ParsePgs(cBitStream &bs)
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{
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regionDepth = 8;
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bs.SkipBits(8); // skip palette update flag
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clutId = bs.GetBits(8);
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dbgregions("<b>region</b> id %d version %d clutId %d<br>\n", regionId, regionVersionNumber, clutId);
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int objects = bs.GetBits(8);
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while (objects--)
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objectRefs.Add(new cSubtitleObjectRefPgs(bs));
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}
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void cSubtitleRegion::SetDimensions(int Width, int Height)
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{
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regionWidth = Width;
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regionHeight = Height;
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dbgregions("<b>region</b> id %d width %d height %d<br>\n", regionId, regionWidth, regionHeight);
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}
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void cSubtitleRegion::Render(cBitmap *Bitmap, cSubtitleObjects *Objects)
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{
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if (regionFillFlag) {
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@ -794,12 +946,20 @@ private:
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int regionHorizontalAddress;
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int regionVerticalAddress;
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public:
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cSubtitleRegionRef(int id, int x, int y);
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cSubtitleRegionRef(cBitStream &bs);
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int RegionId(void) { return regionId; }
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int RegionHorizontalAddress(void) { return regionHorizontalAddress; }
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int RegionVerticalAddress(void) { return regionVerticalAddress; }
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};
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cSubtitleRegionRef::cSubtitleRegionRef(int id, int x, int y)
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{
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regionId = id;
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regionHorizontalAddress = x;
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regionVerticalAddress = y;
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dbgpages("<b>regionref</b> id %d tx %d y %d<br>\n", regionId, regionHorizontalAddress, regionVerticalAddress);
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}
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cSubtitleRegionRef::cSubtitleRegionRef(cBitStream &bs)
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{
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regionId = bs.GetBits(8);
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@ -826,6 +986,7 @@ private:
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public:
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cDvbSubtitlePage(int PageId);
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void Parse(int64_t Pts, cBitStream &bs);
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void ParsePgs(int64_t Pts, cBitStream &bs);
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int PageId(void) { return pageId; }
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int PageTimeout(void) { return pageTimeout; }
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int PageVersionNumber(void) { return pageVersionNumber; }
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@ -838,6 +999,7 @@ public:
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cSubtitleClut *GetClutById(int ClutId, bool New = false);
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cSubtitleRegion *GetRegionById(int RegionId, bool New = false);
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cSubtitleRegionRef *GetRegionRefByIndex(int RegionRefIndex) { return regionRefs.Get(RegionRefIndex); }
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void AddRegionRef(cSubtitleRegionRef *rf) { regionRefs.Add(rf); }
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void SetPending(bool Pending) { pending = Pending; }
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};
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@ -887,6 +1049,35 @@ void cDvbSubtitlePage::Parse(int64_t Pts, cBitStream &bs)
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pending = true;
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}
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void cDvbSubtitlePage::ParsePgs(int64_t Pts, cBitStream &bs)
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{
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if (Pts >= 0)
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pts = Pts;
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pageTimeout = 60000;
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int Version = bs.GetBits(16);
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if (pageVersionNumber == Version)
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return;
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pageVersionNumber = Version;
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pageState = bs.GetBits(2);
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switch (pageState) {
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case 0: // normal case - page update
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regions.Clear();
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break;
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case 1: // acquisition point - page refresh
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case 2: // epoch start - new page
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case 3: // epoch continue - new page
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regions.Clear();
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cluts.Clear();
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objects.Clear();
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break;
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default: dbgpages("unknown page state: %d<br>\n", pageState);
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}
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bs.SkipBits(6);
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dbgpages("<hr>\n<b>page</b> id %d version %d pts %"PRId64" timeout %d state %d<br>\n", pageId, pageVersionNumber, pts, pageTimeout, pageState);
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regionRefs.Clear();
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pending = true;
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}
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tArea *cDvbSubtitlePage::GetAreas(int &NumAreas, double FactorX, double FactorY)
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{
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if (regions.Count() > 0) {
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@ -1232,22 +1423,24 @@ int cDvbSubtitleConverter::Convert(const uchar *Data, int Length)
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dbgconverter("converter PTS: %"PRId64"<br>\n", pts);
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const uchar *data = Data + PayloadOffset;
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int length = Length - PayloadOffset;
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if (length > 3) {
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if (data[0] == 0x20 && data[1] == 0x00 && data[2] == 0x0F) {
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if (length > 0) {
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if (length > 2 && data[0] == 0x20 && data[1] == 0x00 && data[2] == 0x0F) {
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data += 2;
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length -= 2;
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}
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const uchar *b = data;
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while (length > 0) {
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if (b[0] == 0x0F) {
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int n = ExtractSegment(b, length, pts);
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if (n < 0)
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break;
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b += n;
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length -= n;
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}
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else
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if (b[0] == STUFFING_SEGMENT)
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break;
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int n;
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if (b[0] == 0x0F)
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n = ExtractSegment(b, length, pts);
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else
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n = ExtractPgsSegment(b, length, pts);
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if (n < 0)
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break;
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b += n;
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length -= n;
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}
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}
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}
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@ -1473,6 +1666,71 @@ int cDvbSubtitleConverter::ExtractSegment(const uchar *Data, int Length, int64_t
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return -1;
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}
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int cDvbSubtitleConverter::ExtractPgsSegment(const uchar *Data, int Length, int64_t Pts)
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{
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cBitStream bs(Data, Length * 8);
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if (Length >= 3) {
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int segmentType = bs.GetBits(8);
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int segmentLength = bs.GetBits(16);
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if (!bs.SetLength(bs.Index() + segmentLength * 8))
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return -1;
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LOCK_THREAD;
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cDvbSubtitlePage *page = GetPageById(0, true);
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switch (segmentType) {
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case PGS_PRESENTATION_SEGMENT: {
|
||||
if (page->Pending()) {
|
||||
dbgsegments("PGS_DISPLAY_SEGMENT (simulated)<br>\n");
|
||||
FinishPage(page);
|
||||
}
|
||||
dbgsegments("PGS_PRESENTATION_SEGMENT<br>\n");
|
||||
displayWidth = windowWidth = bs.GetBits(16);
|
||||
displayHeight = windowHeight = bs.GetBits(16);
|
||||
bs.SkipBits(8);
|
||||
page->ParsePgs(Pts, bs);
|
||||
SD.SetFactor(double(DBGBITMAPWIDTH) / windowWidth);
|
||||
cSubtitleRegion *region = page->GetRegionById(0, true);
|
||||
region->ParsePgs(bs);
|
||||
break;
|
||||
}
|
||||
case PGS_WINDOW_SEGMENT: {
|
||||
bs.SkipBits(16);
|
||||
int regionHorizontalAddress = bs.GetBits(16);
|
||||
int regionVerticalAddress = bs.GetBits(16);
|
||||
int regionWidth = bs.GetBits(16);
|
||||
int regionHeight = bs.GetBits(16);
|
||||
cSubtitleRegion *region = page->GetRegionById(0, true);
|
||||
region->SetDimensions(regionWidth, regionHeight);
|
||||
page->AddRegionRef(new cSubtitleRegionRef(0, regionHorizontalAddress, regionVerticalAddress));
|
||||
dbgsegments("PGS_WINDOW_SEGMENT<br>\n");
|
||||
break;
|
||||
}
|
||||
case PGS_PALETTE_SEGMENT: {
|
||||
dbgsegments("PGS_PALETTE_SEGMENT<br>\n");
|
||||
cSubtitleClut *clut = page->GetClutById(bs.GetBits(8), true);
|
||||
clut->ParsePgs(bs);
|
||||
break;
|
||||
}
|
||||
case PGS_OBJECT_SEGMENT: {
|
||||
dbgsegments("PGS_OBJECT_SEGMENT<br>\n");
|
||||
cSubtitleObject *object = page->GetObjectById(bs.GetBits(16), true);
|
||||
object->ParsePgs(bs);
|
||||
break;
|
||||
}
|
||||
case PGS_DISPLAY_SEGMENT: {
|
||||
dbgsegments("PGS_DISPLAY_SEGMENT<br>\n");
|
||||
FinishPage(page);
|
||||
page->SetPending(false);
|
||||
break;
|
||||
}
|
||||
default:
|
||||
dbgsegments("*** unknown segment type: %02X<br>\n", segmentType);
|
||||
return -1;
|
||||
}
|
||||
return bs.Length() / 8;
|
||||
}
|
||||
return -1;
|
||||
}
|
||||
|
||||
void cDvbSubtitleConverter::FinishPage(cDvbSubtitlePage *Page)
|
||||
{
|
||||
if (!AssertOsd())
|
||||
|
|
|
|||
|
|
@ -6,7 +6,7 @@
|
|||
*
|
||||
* Original author: Marco Schluessler <marco@lordzodiac.de>
|
||||
*
|
||||
* $Id: dvbsubtitle.h 3.1 2013/09/06 10:53:30 kls Exp $
|
||||
* $Id: dvbsubtitle.h 3.2 2015/01/14 10:01:48 kls Exp $
|
||||
*/
|
||||
|
||||
#ifndef __DVBSUBTITLE_H
|
||||
|
|
@ -43,6 +43,7 @@ private:
|
|||
void SetOsdData(void);
|
||||
bool AssertOsd(void);
|
||||
int ExtractSegment(const uchar *Data, int Length, int64_t Pts);
|
||||
int ExtractPgsSegment(const uchar *Data, int Length, int64_t Pts);
|
||||
void FinishPage(cDvbSubtitlePage *Page);
|
||||
public:
|
||||
cDvbSubtitleConverter(void);
|
||||
|
|
|
|||
32
remux.c
32
remux.c
|
|
@ -4,7 +4,7 @@
|
|||
* See the main source file 'vdr.c' for copyright information and
|
||||
* how to reach the author.
|
||||
*
|
||||
* $Id: remux.c 3.8 2015/01/14 09:28:24 kls Exp $
|
||||
* $Id: remux.c 3.9 2015/01/14 09:57:09 kls Exp $
|
||||
*/
|
||||
|
||||
#include "remux.h"
|
||||
|
|
@ -853,6 +853,36 @@ void cPatPmtParser::ParsePmt(const uchar *Data, int Length)
|
|||
}
|
||||
}
|
||||
break;
|
||||
case 0x90: // PGS subtitles for BD
|
||||
{
|
||||
dbgpatpmt(" subtitling");
|
||||
char lang[MAXLANGCODE1] = { 0 };
|
||||
SI::Descriptor *d;
|
||||
for (SI::Loop::Iterator it; (d = stream.streamDescriptors.getNext(it)); ) {
|
||||
switch (d->getDescriptorTag()) {
|
||||
case SI::ISO639LanguageDescriptorTag: {
|
||||
SI::ISO639LanguageDescriptor *ld = (SI::ISO639LanguageDescriptor *)d;
|
||||
dbgpatpmt(" '%s'", ld->languageCode);
|
||||
strn0cpy(lang, I18nNormalizeLanguageCode(ld->languageCode), MAXLANGCODE1);
|
||||
if (NumSpids < MAXSPIDS) {
|
||||
spids[NumSpids] = stream.getPid();
|
||||
*slangs[NumSpids] = 0;
|
||||
subtitlingTypes[NumSpids] = 0;
|
||||
compositionPageIds[NumSpids] = 0;
|
||||
ancillaryPageIds[NumSpids] = 0;
|
||||
if (updatePrimaryDevice)
|
||||
cDevice::PrimaryDevice()->SetAvailableTrack(ttSubtitle, NumSpids, stream.getPid(), lang);
|
||||
NumSpids++;
|
||||
spids[NumSpids] = 0;
|
||||
}
|
||||
}
|
||||
break;
|
||||
default: ;
|
||||
}
|
||||
delete d;
|
||||
}
|
||||
}
|
||||
break;
|
||||
default: ;
|
||||
}
|
||||
dbgpatpmt("\n");
|
||||
|
|
|
|||
Loading…
Reference in New Issue