2 Copyright 2008 Mark Calderbank
4 This file is part of VOMP.
6 VOMP is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 VOMP is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with VOMP; if not, write to the Free Software Foundation, Inc.,
18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
20 /* Sections of code and general methods adopted from VDR version 1.6.0
21 * dvbsubtitle.c (GPL version 2 or later)
22 * Original author: Marco Schluessler <marco@lordzodiac.de>
23 * With some input from the "subtitle plugin"
24 * by Pekka Virtanen <pekka.virtanen@sci.fi>
27 /* Reference ETSI EN 300 743 V1.3.1 (2006-11) */
29 #include "dvbsubtitles.h"
31 #include "osdreceiver.h"
35 // --- cTimeMs ---------------------------------------------------------------
36 // Borrowed from the vdr tools
38 cTimeMs::cTimeMs(int Ms)
47 uint64_t cTimeMs::Now(void)
51 if (clock_gettime(CLOCK_REALTIME, &tp) == 0)
52 return (uint64_t(tp.tv_sec)) * 1000 + tp.tv_nsec / 1000000;
54 Log::getInstance()->log("SUBTITLES", Log::DEBUG, "cTimeMs: clock_gettime(CLOCK_REALTIME) failed");
60 GetSystemTime(&systime);
61 SystemTimeToFileTime(&systime,(FILETIME*)&filetime);
62 tp.tv_sec=(filetime-WINDOWS_TIME_BASE_OFFSET)/(10*1000*1000);
63 tp.tv_nsec=((filetime-WINDOWS_TIME_BASE_OFFSET)%(10*1000*1000))*100;
64 return (uint64_t(tp.tv_sec)) * 1000 + tp.tv_nsec / 1000000;
68 void cTimeMs::Set(int Ms)
70 isFirstCheck = true; // Timer set, the first check can be done once
74 bool cTimeMs::TimedOut(void)
76 if (isFirstCheck && (Now() >= begin))
78 isFirstCheck = false; // Timer timed out & the first check is done
85 uint64_t cTimeMs::Elapsed(void)
90 cTimeMs SubtitleTimeout;
91 //-------- End of cTimeMs borrowed from the vdr tools --------
93 DVBSubtitleCLUT::DVBSubtitleCLUT()
99 for (int i = 0; i < 4; ++i) palette2.setColour(i, defaultPalette2[i]);
100 for (int i = 0; i < 16; ++i) palette4.setColour(i, defaultPalette4[i]);
101 for (int i = 0; i < 256; ++i) palette8.setColour(i, defaultPalette8[i]);
104 const ULONG DVBSubtitleCLUT::defaultPalette2[4] = {
105 0x00000000, 0xFFFFFFFF, 0xFF000000, 0xFF808080
108 const ULONG DVBSubtitleCLUT::defaultPalette4[16] = {
109 0x00000000, 0xFFFF0000, 0xFF00FF00, 0xFFFFFF00,
110 0xFF0000FF, 0xFFFF00FF, 0xFF00FFFF, 0xFFFFFFFF,
111 0xFF000000, 0xFF800000, 0xFF008000, 0xFF808000,
112 0xFF000080, 0xFF800080, 0xFF008080, 0xFF808080
115 const ULONG DVBSubtitleCLUT::defaultPalette8[256] = {
116 0x00000000, 0x40FF0000, 0x4000FF00, 0x40FFFF00, // 0000 0000
117 0x400000FF, 0x40FF00FF, 0x4000FFFF, 0x40FFFFFF, // 0000 0100
118 0x80000000, 0x80550000, 0x80005500, 0x80555500, // 0000 1000
119 0x80000055, 0x80550055, 0x80005555, 0x80555555, // 0000 1100
120 0xFFAA0000, 0xFFFF0000, 0xFFAA5500, 0xFFFF5500, // 0001 0000
121 0xFFAA0055, 0xFFFF0055, 0xFFAA5555, 0xFFFF5555, // 0001 0100
122 0x80AA0000, 0x80FF0000, 0x80AA5500, 0x80FF5500, // 0001 1000
123 0x80AA0055, 0x80FF0055, 0x80AA5555, 0x80FF5555, // 0001 1100
124 0xFF00AA00, 0xFF55AA00, 0xFF00FF00, 0xFF55FF00, // 0010 0000
125 0xFF00AA55, 0xFF55AA55, 0xFF00FF55, 0xFF55FF55, // 0010 0100
126 0x8000AA00, 0x8055AA00, 0x8000FF00, 0x8055FF00, // 0010 1000
127 0x8000AA55, 0x8055AA55, 0x8000FF55, 0x8055FF55, // 0010 1100
128 0xFFAAAA00, 0xFFFFAA00, 0xFFAAFF00, 0xFFFFFF00, // 0011 0000
129 0xFFAAAA55, 0xFFFFAA55, 0xFFAAFF55, 0xFFFFFF55, // 0011 0100
130 0x80AAAA00, 0x80FFAA00, 0x80AAFF00, 0x80FFFF00, // 0011 1000
131 0x80AAAA55, 0x80FFAA55, 0x80AAFF55, 0x80FFFF55, // 0011 1100
132 0xFF0000AA, 0xFF5500AA, 0xFF0055AA, 0xFF5555AA, // 0100 0000
133 0xFF0000FF, 0xFF5500FF, 0xFF0055FF, 0xFF5555FF, // 0100 0100
134 0x800000AA, 0x805500AA, 0x800055AA, 0x805555AA, // 0100 1000
135 0x800000FF, 0x805500FF, 0x800055FF, 0x805555FF, // 0100 1100
136 0xFFAA00AA, 0xFFFF00AA, 0xFFAA55AA, 0xFFFF55AA, // 0101 0000
137 0xFFAA00FF, 0xFFFF00FF, 0xFFAA55FF, 0xFFFF55FF, // 0101 0100
138 0x80AA00AA, 0x80FF00AA, 0x80AA55AA, 0x80FF55AA, // 0101 1000
139 0x80AA00FF, 0x80FF00FF, 0x80AA55FF, 0x80FF55FF, // 0101 1100
140 0xFF00AAAA, 0xFF55AAAA, 0xFF00FFAA, 0xFF55FFAA, // 0110 0000
141 0xFF00AAFF, 0xFF55AAFF, 0xFF00FFFF, 0xFF55FFFF, // 0110 0100
142 0x8000AAAA, 0x8055AAAA, 0x8000FFAA, 0x8055FFAA, // 0110 1000
143 0x8000AAFF, 0x8055AAFF, 0x8000FFFF, 0x8055FFFF, // 0110 1100
144 0xFFAAAAAA, 0xFFFFAAAA, 0xFFAAFFAA, 0xFFFFFFAA, // 0111 0000
145 0xFFAAAAFF, 0xFFFFAAFF, 0xFFAAFFFF, 0xFFFFFFFF, // 0111 0100
146 0x80AAAAAA, 0x80FFAAAA, 0x80AAFFAA, 0x80FFFFAA, // 0111 1000
147 0x80AAAAFF, 0x80FFAAFF, 0x80AAFFFF, 0x80FFFFFF, // 0111 1100
148 0xFF808080, 0xFFAA8080, 0xFF80AA80, 0xFFAAAA80, // 1000 0000
149 0xFF8080AA, 0xFFAA80AA, 0xFF80AAAA, 0xFFAAAAAA, // 1000 0100
150 0xFF000000, 0xFF2A0000, 0xFF002A00, 0xFF2A2A00, // 1000 1000
151 0xFF00002A, 0xFF2A002A, 0xFF002A2A, 0xFF2A2A2A, // 1000 1100
152 0xFFD58080, 0xFFFF8080, 0xFFD5AA80, 0xFFFFAA80, // 1001 0000
153 0xFFD580AA, 0xFFFF80AA, 0xFFD5AAAA, 0xFFFFAAAA, // 1001 0100
154 0xFF550000, 0xFF7F0000, 0xFF552A00, 0xFF7F2A00, // 1001 1000
155 0xFF55002A, 0xFF7F002A, 0xFF552A2A, 0xFF7F2A2A, // 1001 1100
156 0xFF80D580, 0xFFAAD580, 0xFF80FF80, 0xFFAAFF80, // 1010 0000
157 0xFF80D5AA, 0xFFAAD5AA, 0xFF80FFAA, 0xFFAAFFAA, // 1010 0100
158 0xFF005500, 0xFF2A5500, 0xFF007F00, 0xFF2A7F00, // 1010 1000
159 0xFF00552A, 0xFF2A552A, 0xFF007F2A, 0xFF2A7F2A, // 1010 1100
160 0xFFD5D580, 0xFFFFD580, 0xFFD5FF80, 0xFFFFFF80, // 1011 0000
161 0xFFD5D5AA, 0xFFFFD5AA, 0xFFD5FFAA, 0xFFFFFFAA, // 1011 0100
162 0xFF555500, 0xFF7F5500, 0xFF557F00, 0xFF7F7F00, // 1011 1000
163 0xFF55552A, 0xFF7F552A, 0xFF557F2A, 0xFF7F7F2A, // 1011 1100
164 0xFF8080D5, 0xFFAA80D5, 0xFF80AAD5, 0xFFAAAAD5, // 1100 0000
165 0xFF8080FF, 0xFFAA80FF, 0xFF80AAFF, 0xFFAAAAFF, // 1100 0100
166 0xFF000055, 0xFF2A0055, 0xFF002A55, 0xFF2A2A55, // 1100 1000
167 0xFF00007F, 0xFF2A007F, 0xFF002A7F, 0xFF2A2A7F, // 1100 1100
168 0xFFD580D5, 0xFFFF80D5, 0xFFD5AAD5, 0xFFFFAAD5, // 1101 0000
169 0xFFD580FF, 0xFFFF80FF, 0xFFD5AAFF, 0xFFFFAAFF, // 1101 0100
170 0xFF550055, 0xFF7F0055, 0xFF552A55, 0xFF7F2A55, // 1101 1000
171 0xFF55007F, 0xFF7F007F, 0xFF552A7F, 0xFF7F2A7F, // 1101 1100
172 0xFF80D5D5, 0xFFAAD5D5, 0xFF80FFD5, 0xFFAAFFD5, // 1110 0000
173 0xFF80D5FF, 0xFFAAD5FF, 0xFF80FFFF, 0xFFAAFFFF, // 1110 0100
174 0xFF005555, 0xFF2A5555, 0xFF007F55, 0xFF2A7F55, // 1110 1000
175 0xFF00557F, 0xFF2A557F, 0xFF007F7F, 0xFF2A7F7F, // 1110 1100
176 0xFFD5D5D5, 0xFFFFD5D5, 0xFFD5FFD5, 0xFFFFFFD5, // 1111 0000
177 0xFFD5D5FF, 0xFFFFD5FF, 0xFFD5FFFF, 0xFFFFFFFF, // 1111 0100
178 0xFF555555, 0xFF7F5555, 0xFF557F55, 0xFF7F7F55, // 1111 1000
179 0xFF55557F, 0xFF7F557F, 0xFF557F7F, 0xFF7F7F7F, // 1111 1100
182 void DVBSubtitleCLUT::setEntry(int bpp, UINT index, UCHAR Y, UCHAR Cr, UCHAR Cb, UCHAR T)
186 if (Y2 == 0) { Y2 = 16; A = 0; } else A = 255 - T;
189 case 2: palette2.setYCrCbA(index, Y2, Cr, Cb, A); break;
190 case 4: palette4.setYCrCbA(index, Y2, Cr, Cb, A); break;
191 case 8: palette8.setYCrCbA(index, Y2, Cr, Cb, A); break;
195 const Palette& DVBSubtitleCLUT::getPalette(int bpp) const
199 case 2: return palette2; break;
200 case 4: return palette4; break;
201 default: return palette8; break;
205 DVBSubtitleRegion::DVBSubtitleRegion()
211 void DVBSubtitleRegion::setDepth(UINT d)
213 if (d < 4) palette.setBpp(1 << d);
216 DVBSubtitlePage::DVBSubtitlePage()
222 serviceAcquired(false)
225 void DVBSubtitlePage::setState(UCHAR s)
228 if (state == 1) // Acquisition point - page refresh
229 if (!serviceAcquired) // Service not acquired lets treat this as mode change
231 if (state == 2) // Mode change - new epoch
233 serviceAcquired = true;
236 currentDisplay.clear();
237 pendingDisplay.clear();
242 void DVBSubtitlePage::updateRegionPalettes(const DVBSubtitleCLUT& clut)
244 RegionMap::iterator region;
245 for (region = regions.begin(); region != regions.end(); ++region)
246 if (region->second.CLUTid == clut.CLUTid)
247 region->second.palette = clut.getPalette(region->second.palette.getBpp());
250 DVBSubtitleDisplayDefinition::DVBSubtitleDisplayDefinition()
256 class DVBSubtitleObject
260 UCHAR nonModColourFlag;
263 DVBSubtitleRegion* region;
264 UINT horizontalPosition;
265 UINT verticalPosition;
267 typedef std::vector<struct RegionRef> UseList;
272 void initMapTables();
273 UCHAR* currentMapTable;
275 void drawLine(const RegionRef& use, UINT x, UINT y, UCHAR colour, UINT len);
276 UCHAR get2Bits(const UCHAR* data, UINT& index);
277 UCHAR get4Bits(const UCHAR* data, UINT& index);
278 bool decode2BppCodeString(const UCHAR* data, UINT& index, const struct RegionRef& use, UINT& x, UINT y);
279 bool decode4BppCodeString(const UCHAR* data, UINT& index, const struct RegionRef& use, UINT& x, UINT y);
280 bool decode8BppCodeString(const UCHAR* data, UINT& index, const struct RegionRef& use, UINT& x, UINT y);
282 DVBSubtitleObject(UINT id = 0);
283 void setNonModColourFlag(UCHAR flag) { nonModColourFlag = flag; }
284 void findWhereUsed(DVBSubtitlePage&);
285 void decodeSubBlock(const UCHAR* data, UINT length, bool even);
288 DVBSubtitleObject::DVBSubtitleObject(UINT id)
291 currentMapTable(NULL),
297 void DVBSubtitleObject::initMapTables()
299 map2to4[0] = 0x0; map2to4[1] = 0x7; map2to4[2] = 0x8; map2to4[3] = 0xF;
300 map2to8[0] = 0x00; map2to8[1] = 0x77; map2to8[2] = 0x88; map2to8[3] = 0xFF;
301 map4to8[0] = 0x00; map4to8[1] = 0x11; map4to8[2] = 0x22; map4to8[3] = 0x33;
302 map4to8[4] = 0x44; map4to8[5] = 0x55; map4to8[6] = 0x66; map4to8[7] = 0x77;
303 map4to8[8] = 0x88; map4to8[9] = 0x99; map4to8[10]= 0xAA; map4to8[11]= 0xBB;
304 map4to8[12]= 0xCC; map4to8[13]= 0xDD; map4to8[14]= 0xEE; map4to8[15]= 0xFF;
307 void DVBSubtitleObject::findWhereUsed(DVBSubtitlePage& page)
310 DVBSubtitlePage::RegionMap::iterator i;
311 for (i = page.regions.begin(); i != page.regions.end(); ++i)
313 DVBSubtitleRegion::ObjectList::iterator j;
314 for (j = i->second.objects.begin(); j != i->second.objects.end(); ++j)
316 if (j->objectID == objectID)
318 struct RegionRef usage;
319 usage.region = &(i->second);
320 usage.horizontalPosition = j->horizontalPosition;
321 usage.verticalPosition = j->verticalPosition;
322 useList.push_back(usage);
328 void DVBSubtitleObject::drawLine(const RegionRef& use, UINT x, UINT y,
329 UCHAR colour, UINT len)
331 if (nonModColourFlag && colour == 1) return;
332 x += use.horizontalPosition;
333 y += use.verticalPosition;
334 for (UINT pos = x; pos < x + len; ++pos)
335 use.region->setIndex(pos, y, colour);
338 UCHAR DVBSubtitleObject::get2Bits(const UCHAR* data, UINT& index)
340 UCHAR result = data[index];
347 return (result >> bitPos) & 0x03;
350 UCHAR DVBSubtitleObject::get4Bits(const UCHAR* data, UINT& index)
352 UCHAR result = data[index];
363 return result & 0x0F;
366 bool DVBSubtitleObject::decode2BppCodeString(const UCHAR* data, UINT& index, const struct RegionRef& use, UINT& x, UINT y)
368 UINT rl = 0, colour = 0;
369 UCHAR code = get2Bits(data, index);
377 code = get2Bits(data, index);
378 if (code & 2) // Switch 1
380 rl = ((code & 1) << 2) + get2Bits(data, index) + 3;
381 colour = get2Bits(data, index);
383 else if (code & 1) rl = 1; // Colour 0
386 code = get2Bits(data, index);
390 return false; // end of 2-bit/pixel_code_string
395 rl = (get2Bits(data, index) << 2) + get2Bits(data, index) + 12;
396 colour = get2Bits(data, index);
399 rl = (get2Bits(data, index) << 6) + (get2Bits(data, index) << 4) +
400 (get2Bits(data, index) << 2) + get2Bits(data, index) + 29;
401 colour = get2Bits(data, index);
406 drawLine(use, x, y, colour, rl);
411 bool DVBSubtitleObject::decode4BppCodeString(const UCHAR* data, UINT& index, const struct RegionRef& use, UINT& x, UINT y)
413 UINT rl = 0, colour = 0;
414 UCHAR code = get4Bits(data, index);
422 code = get4Bits(data, index);
423 if (code & 8) // Switch 1
425 if (code & 4) // Switch 2
427 switch (code & 3) // Switch 3
436 rl = get4Bits(data, index) + 9;
437 colour = get4Bits(data, index);
440 rl = (get4Bits(data, index) << 4) + get4Bits(data, index) + 25;
441 colour = get4Bits(data, index);
448 colour = get4Bits(data, index);
453 if (!code) return false; // end of 4-bit/pixel_code_string
454 rl = code + 2; // Colour 0
457 drawLine(use, x, y, colour, rl);
462 bool DVBSubtitleObject::decode8BppCodeString(const UCHAR* data, UINT& index, const struct RegionRef& use, UINT& x, UINT y)
464 UINT rl = 0, colour = 0;
465 UCHAR code = data[index++];
473 code = data[index++];
476 colour = data[index++];
478 return false; // else colour 0
480 drawLine(use, x, y, colour, rl);
485 void DVBSubtitleObject::decodeSubBlock(const UCHAR* data, UINT length, bool even)
487 UseList::const_iterator use;
488 for (use = useList.begin(); use != useList.end(); ++use)
490 UINT x = 0; UINT y = even ? 0 : 1; UINT index = 0;
491 while (index < length)
493 switch (data[index++])
496 switch (use->region->palette.getBpp())
498 case 8: currentMapTable = map2to8; break;
499 case 4: currentMapTable = map2to4; break;
500 default: currentMapTable = NULL;
503 while (decode2BppCodeString(data, index, *use,x,y) && index < length);
504 if (!bitPos) index++;
507 if (use->region->palette.getBpp() == 8)
508 currentMapTable = map4to8;
510 currentMapTable = NULL;
512 while (decode4BppCodeString(data, index, *use,x,y) && index < length);
513 if (!bitPos) index++;
516 while (decode8BppCodeString(data, index, *use,x,y) && index < length);
519 map2to4[0] = data[index] >> 4;
520 map2to4[1] = data[index++] & 0x0F;
521 map2to4[2] = data[index] >> 4;
522 map2to4[3] = data[index++] & 0x0F;
525 for (int i = 0; i < 4; i++) map2to8[i] = data[index++];
528 for (int i = 0; i < 16; i++) map4to8[i] = data[index++];
538 static ULLONG PTSDifference(ULLONG pts1, ULLONG pts2)
540 // Assume pts1, pts2 < 2^33; calculate pts1 - pts2
544 return (1LL<<33) + pts1 - pts2;
547 DVBSubtitles::DVBSubtitles(OSDReceiver* tosd)
549 pageOnDisplay(65536),
555 pthread_mutex_init(&input_mutex, NULL);
556 pthread_mutex_init(&output_mutex, NULL);
558 input_mutex=CreateMutex(NULL,FALSE,NULL);
559 output_mutex=CreateMutex(NULL,FALSE,NULL);
563 void DVBSubtitles::put(const PESPacket& packet)
568 if (packet.getPTS() != PESPacket::PTS_INVALID)
570 worklist.push_back(packet);
577 bool DVBSubtitles::decodePacket(const PESPacket& packet)
579 const UCHAR* data = packet.getData();
580 UINT packetSize = packet.getSize();
581 if (packetSize < 9) return false;
582 UINT segmentOffset = data[8] + 11;
583 while (packetSize > segmentOffset)
585 if (data[segmentOffset] == 0xFF) return true; // 'End of PES' marker
586 if (data[segmentOffset] != 0x0F) return false; // Out of sync
587 if (packetSize <= segmentOffset + 5) return false; // Packet truncated
588 UCHAR segmentType = data[segmentOffset + 1];
589 UINT pageID = (data[segmentOffset + 2] << 8)
590 + data[segmentOffset + 3];
591 UINT segmentLength = (data[segmentOffset + 4] << 8)
592 + data[segmentOffset + 5];
593 if (pageOnDisplay == 65536) pageOnDisplay = pageID;
594 if (pageOnDisplay != pageID) return false;
595 if (packetSize <= segmentOffset + 5 + segmentLength) return false;
596 const UCHAR* segmentData = &data[segmentOffset + 6];
597 pages[pageID]; // Create this page if it doesn't exist
598 PageMap::iterator pageEntry = pages.find(pageID);
599 if (pageEntry == pages.end()) return false;
600 DVBSubtitlePage& page = pageEntry->second;
601 if (packet.getPTS() != PESPacket::PTS_INVALID) page.pts = packet.getPTS();
604 case 0x10: // Page composition
606 if (segmentLength < 2) break;
607 page.setState((segmentData[1] & 0x0C) >> 2);
608 if (!page.serviceAcquired) break;
609 UCHAR pageVersion = (segmentData[1] & 0xF0) >> 4;
610 if (pageVersion == page.version) break; // No update
611 page.version = pageVersion;
612 page.timeout = segmentData[0];
613 page.pendingDisplay.clear();
615 while (segmentLength > parsePos + 5)
617 UCHAR regionID = segmentData[parsePos];
618 page.regions[regionID]; // Create the region if it doesn't exist
619 DVBSubtitlePage::Coords coords;
620 coords.x = (segmentData[parsePos + 2] << 8) +
621 segmentData[parsePos + 3];
622 coords.y = (segmentData[parsePos + 4] << 8) +
623 segmentData[parsePos + 5];
624 page.pendingDisplay[regionID] = coords;
629 case 0x11: // Region composition
631 if (segmentLength < 10) break;
632 UCHAR regionID = segmentData[0];
633 page.regions[regionID]; // Create the region if it doesn't exist
634 DVBSubtitlePage::RegionMap::iterator regionEntry;
635 regionEntry = page.regions.find(regionID);
636 if (regionEntry == page.regions.end()) return false;
637 DVBSubtitleRegion& region = regionEntry->second;
638 UCHAR regionVersion = (segmentData[1] & 0xF0) >> 4;
639 if (regionVersion == region.version) break; // No update
640 region.version = regionVersion;
641 bool regionFillFlag = (segmentData[1] & 0x08) >> 3;
642 UINT regionWidth = (segmentData[2] << 8) + segmentData[3];
643 UINT regionHeight = (segmentData[4] << 8) + segmentData[5];
644 region.setSize(regionWidth, regionHeight);
645 region.level = (segmentData[6] & 0xE0) >> 5;
646 region.setDepth((segmentData[6] & 0x1C) >> 2);
647 region.CLUTid = segmentData[7];
648 page.CLUTs[region.CLUTid]; // Create the CLUT if it doesn't exist
649 DVBSubtitlePage::CLUTMap::iterator clut;
650 clut = page.CLUTs.find(region.CLUTid);
651 if (clut == page.CLUTs.end()) return false;
652 region.palette = clut->second.getPalette(region.palette.getBpp());
653 if (regionFillFlag) switch (region.palette.getBpp())
655 case 2: region.setAllIndices((segmentData[9] & 0x0C) >> 2); break;
656 case 4: region.setAllIndices((segmentData[9] & 0xF0) >> 4); break;
657 case 8: region.setAllIndices(segmentData[8]); break;
659 region.objects.clear();
661 while (segmentLength > parsePos + 5)
663 UINT objectID = (segmentData[parsePos] << 8) +
664 segmentData[parsePos + 1];
665 DVBSubtitleRegion::ObjectRef objref;
666 objref.objectID = objectID;
667 UINT objectType = (segmentData[parsePos + 2] & 0xC0) >> 6;
668 objref.horizontalPosition = ((segmentData[parsePos + 2] & 0x0F) << 8) +
669 segmentData[parsePos + 3];
670 objref.verticalPosition = ((segmentData[parsePos + 4] & 0x0F) << 8) +
671 segmentData[parsePos + 5];
672 if (objectType == 0) region.objects.push_back(objref);
677 case 0x12: // CLUT definition
679 if (segmentLength < 2) break;
680 UCHAR CLUTid = segmentData[0];
681 DVBSubtitlePage::CLUTMap::iterator clutEntry;
682 clutEntry = page.CLUTs.find(CLUTid);
683 if (clutEntry == page.CLUTs.end()) return false;
684 DVBSubtitleCLUT& clut = clutEntry->second;
685 clut.CLUTid = CLUTid;
686 UCHAR clutVersion = (segmentData[1] & 0xF0) >> 4;
687 if (clutVersion == clut.version) break; // No update
688 clut.version = clutVersion;
690 while (segmentLength > parsePos + 3)
692 UCHAR clutEntryID = segmentData[parsePos];
693 bool fullRangeFlag = segmentData[parsePos + 1] & 0x01;
697 if (segmentLength <= parsePos + 5) break;
698 Y = segmentData[parsePos + 2];
699 Cr = segmentData[parsePos + 3];
700 Cb = segmentData[parsePos + 4];
701 T = segmentData[parsePos + 5];
705 Y = segmentData[parsePos + 2] & 0xFC;
706 Cr = (segmentData[parsePos + 2] & 0x03) << 6;
707 Cr |= (segmentData[parsePos + 3] & 0xC0) >> 2;
708 Cb = (segmentData[parsePos + 3] & 0x3C) << 2;
709 T = (segmentData[parsePos + 3] & 0x03) << 6;
711 UCHAR entryFlags = segmentData[parsePos + 1];
712 if (entryFlags & 0x80) clut.setEntry(2, clutEntryID, Y,Cr,Cb,T);
713 if (entryFlags & 0x40) clut.setEntry(4, clutEntryID, Y,Cr,Cb,T);
714 if (entryFlags & 0x20) clut.setEntry(8, clutEntryID, Y,Cr,Cb,T);
715 parsePos += fullRangeFlag ? 6 : 4;
717 page.updateRegionPalettes(clut);
720 case 0x13: // Object data
722 if (segmentLength < 3) break;
723 UINT objectID = (segmentData[0] << 8) + segmentData[1];
724 DVBSubtitleObject object(objectID);
725 object.findWhereUsed(page);
726 UCHAR codingMethod = (segmentData[2] & 0x0C) >> 2;
727 object.setNonModColourFlag(segmentData[2] & 0x01);
728 if (codingMethod == 0x00) // Coding of pixels
730 if (segmentLength < 7) break;
731 UINT topFieldLen = (segmentData[3] << 8) + segmentData[4];
732 UINT bottomFieldLen = (segmentData[5] << 8) + segmentData[6];
733 if (segmentLength < 7 + topFieldLen + bottomFieldLen) break;
734 object.decodeSubBlock(segmentData + 7, topFieldLen, true);
736 object.decodeSubBlock(segmentData + 7 + topFieldLen,
737 bottomFieldLen, false);
739 object.decodeSubBlock(segmentData + 7, topFieldLen, false);
741 else if (codingMethod == 0x01) // Coded as a string of characters
745 case 0x14: {// Display definition
746 if (segmentLength<5) break;
747 UINT ddsversion=(segmentData[0]&0xf0)>>4;
748 if (ddsversion==dds.version) break; // no update ncessary
749 dds.version=ddsversion;
750 dds.displaywindow=!(!(segmentData[0]&0x08));
751 dds.framewidth=(segmentData[1] << 8) + segmentData[2];
752 dds.frameheight=(segmentData[3] << 8) + segmentData[4];
753 if (segmentLength<13) break;
754 if (dds.displaywindow) {
755 dds.windowx=(segmentData[4] << 8) + segmentData[5];
756 dds.windoww=(segmentData[6] << 8) + segmentData[7]-dds.windowx;
757 dds.windowy=(segmentData[8] << 8) + segmentData[9];
758 dds.windowh=(segmentData[10] << 8) + segmentData[11]-dds.windowy;
762 dds.windoww=dds.framewidth;
763 dds.windowh=dds.frameheight;
767 case 0x80: // End of display set
770 page.currentDisplay = page.pendingDisplay;
773 segmentOffset += (segmentLength + 6);
775 return false; // Fall through from while loop: we ran out of data
778 void DVBSubtitles::finishPage(const DVBSubtitlePage& page)
780 if (page.dirty && !osdMenuShowing)
785 DVBSubtitlePage::DisplayMap::const_iterator i,j;
786 for (i = page.currentDisplay.begin(); i != page.currentDisplay.end(); ++i)
787 { // For each currently displayed region, if the region has been
788 // moved or removed, blank out its previous screen position
789 j = page.pendingDisplay.find(i->first);
790 if (j == page.pendingDisplay.end() ||
791 j->second.x != i->second.x ||
792 j->second.y != i->second.y)
794 DVBSubtitlePage::RegionMap::const_iterator region_iter;
795 region_iter = page.regions.find(i->first);
796 if (region_iter == page.regions.end()) continue;
797 Log::getInstance()->log("SUBTITLES", Log::DEBUG, "Clear region %d", i->first);
798 if (!osdMenuShowing) osd->clearOSDArea(i->second.x, i->second.y,
799 region_iter->second.getWidth(), region_iter->second.getHeight(),dds);
803 for (i = page.pendingDisplay.begin(); i != page.pendingDisplay.end(); ++i)
804 { // Display each pending region
805 DVBSubtitlePage::RegionMap::const_iterator region_iter;
806 region_iter = page.regions.find(i->first);
807 if (region_iter == page.regions.end()) continue;
808 Log::getInstance()->log("SUBTITLES", Log::DEBUG, "Display region %d", i->first);
809 if (!osdMenuShowing) osd->drawOSDBitmap(i->second.x, i->second.y,
810 region_iter->second,dds);
812 // after displaying regions set the page timeout timer
813 SubtitleTimeout.Set(page.timeout * 1000);
814 Log::getInstance()->log("SUBTITLES", Log::DEBUG, "SubtitleTimeout %d", page.timeout);
817 void DVBSubtitles::lockInput()
820 pthread_mutex_lock(&input_mutex);
822 WaitForSingleObject(input_mutex, INFINITE);
826 void DVBSubtitles::unlockInput()
829 pthread_mutex_unlock(&input_mutex);
831 ReleaseMutex(input_mutex);
835 void DVBSubtitles::lockOutput()
838 pthread_mutex_lock(&output_mutex);
840 WaitForSingleObject(output_mutex, INFINITE);
844 void DVBSubtitles::unlockOutput()
847 pthread_mutex_unlock(&output_mutex);
849 ReleaseMutex(output_mutex);
853 int DVBSubtitles::start()
856 dds=DVBSubtitleDisplayDefinition();
859 return threadStart();
862 void DVBSubtitles::stop()
870 PageMap::const_iterator pageEntry = pages.find(pageOnDisplay);
871 if (pageEntry != pages.end())
873 const DVBSubtitlePage& page = pageEntry->second;
874 DVBSubtitlePage::DisplayMap::const_iterator i;
875 for (i = page.currentDisplay.begin(); i != page.currentDisplay.end(); ++i)
877 DVBSubtitlePage::RegionMap::const_iterator region_iter;
878 region_iter = page.regions.find(i->first);
879 if (region_iter == page.regions.end()) continue;
880 if (!osdMenuShowing) osd->clearOSDArea(i->second.x, i->second.y,
881 region_iter->second.getWidth(), region_iter->second.getHeight(),dds);
885 pageOnDisplay = 65536;
887 threadNudged = false;
890 void DVBSubtitles::show()
897 void DVBSubtitles::hide()
901 PageMap::const_iterator pageEntry = pages.find(pageOnDisplay);
902 if (pageEntry != pages.end())
904 const DVBSubtitlePage& page = pageEntry->second;
905 DVBSubtitlePage::DisplayMap::const_iterator i;
906 for (i = page.currentDisplay.begin(); i != page.currentDisplay.end(); ++i)
908 DVBSubtitlePage::RegionMap::const_iterator region_iter;
909 region_iter = page.regions.find(i->first);
910 if (region_iter == page.regions.end()) continue;
911 if (!osdMenuShowing) osd->clearOSDArea(i->second.x, i->second.y,
912 region_iter->second.getWidth(), region_iter->second.getHeight(),dds);
916 pageOnDisplay = 65536;
920 void DVBSubtitles::nudge()
923 pthread_mutex_lock(&threadCondMutex);
925 pthread_cond_signal(&threadCond);
926 pthread_mutex_unlock(&threadCondMutex);
928 WaitForSingleObject(threadCondMutex, INFINITE);
930 SetEvent(threadCond);
931 ReleaseMutex(threadCondMutex);
935 #define SUBTITLE_TIMEOUT_MS 750
936 // How often do we check if subtitles have been timed out.
938 void DVBSubtitles::threadMethod()
940 struct timespec sleeptime;
941 sleeptime.tv_sec = 0;
942 sleeptime.tv_nsec = 0;
946 if (SubtitleTimeout.TimedOut()) // do we have a subtitle timeout
949 if (showing && !osdMenuShowing)
950 osd->clearOSD(); // if we have the timeout, lets clear the OSD
953 else // if not lets check when will we have it
955 wakeup = -(SubtitleTimeout.Elapsed());
956 if (wakeup > 0 && sleeptime.tv_nsec == 0 && sleeptime.tv_sec == 0)
957 // We are not done, we still have a Subtitle Timeout!
959 sleeptime.tv_sec = (int)(wakeup / 1000);
960 sleeptime.tv_nsec = (long)(wakeup % 1000) * 10000L / 1000L * 100000L;
966 { // We have done the current work and no more has arrived. Sleep.
967 if (sleeptime.tv_sec == 0 && sleeptime.tv_nsec == 0)
969 Log::getInstance()->log("SUBTITLES", Log::DEBUG, "Sleeping until nudged.");
970 threadWaitForSignal();
974 Log::getInstance()->log("SUBTITLES", Log::DEBUG, "Sleeping for %d and %d", sleeptime.tv_sec, sleeptime.tv_nsec);
975 struct timespec targetTime;
977 clock_gettime(CLOCK_REALTIME, &targetTime);
982 GetSystemTime(&systime);
983 SystemTimeToFileTime(&systime,(FILETIME*)&filetime);
984 targetTime.tv_sec=(filetime-WINDOWS_TIME_BASE_OFFSET)/(10*1000*1000);
985 targetTime.tv_nsec=((filetime-WINDOWS_TIME_BASE_OFFSET)%(10*1000*1000))*100;
987 targetTime.tv_nsec += sleeptime.tv_nsec;
988 if (targetTime.tv_nsec > 999999999)
990 targetTime.tv_sec += 1;
991 targetTime.tv_nsec -= 1000000000;
993 targetTime.tv_sec += sleeptime.tv_sec;
994 threadWaitForSignalTimed(&targetTime);
997 threadNudged = false;
999 bool finished = false;
1000 ULLONG nowPTS, pktPTS;
1006 pktPTS = PESPacket::PTS_INVALID;
1008 if (!worklist.empty())
1009 pktPTS = worklist.front().getPTS();
1011 if (pktPTS != PESPacket::PTS_INVALID)
1012 { // An entry exists in the work list
1013 nowPTS = Video::getInstance()->getCurrentTimestamp();
1014 if (PTSDifference(nowPTS, pktPTS) < 2*90000 ||
1015 PTSDifference(pktPTS, nowPTS) < 4000)
1016 { // It is due for processing or discarding.
1019 if (!worklist.empty())
1021 PESPacket packet = worklist.front();
1022 worklist.pop_front();
1025 if (showing) decodePacket(packet);
1030 else if (PTSDifference(pktPTS, nowPTS) >= 60*90000)
1031 { // Seems like a bad or very old entry. Get rid of it.
1034 if (!worklist.empty()) worklist.pop_front();
1039 // Calculate how long to sleep for
1040 wait = SUBTITLE_TIMEOUT_MS; // Max sleep while checking subtitle timeout
1041 sleeptime.tv_sec = 0;
1042 sleeptime.tv_nsec = 0;
1043 if (pktPTS != PESPacket::PTS_INVALID)
1044 { // A future action exists
1045 nowPTS = Video::getInstance()->getCurrentTimestamp();
1046 ULLONG diff = PTSDifference(pktPTS, nowPTS);
1047 diff /= 90; // convert diff in ms as PTS difference in 1/90000s
1048 if (diff < 60 * 1000)
1050 if (diff < (ULLONG)wait)
1052 sleeptime.tv_nsec = (long)(wait % 1000) * 10000L / 1000L * 100000L;
1055 { // We have a problem. An action so far in the future should have
1056 // been culled. Probably the action is already due and PTSDifference
1057 // wrapped around. Therefore we sleep for a minimal time instead.
1058 sleeptime.tv_nsec = 1;
1064 void DVBSubtitles::setOSDMenuVisibility(bool visible)
1067 osdMenuShowing = visible;