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vdr/dvbsubtitle.c
Klaus Schmidinger 3df1b6d139 Version 1.7.25 
Original announce message:
VDR developer version 1.7.25 is now available at

       ftp://ftp.tvdr.de/vdr/Developer/vdr-1.7.25.tar.bz2

A 'diff' against the previous version is available at

       ftp://ftp.tvdr.de/vdr/Developer/vdr-1.7.24-1.7.25.diff

MD5 checksums:

a3fd482a3dd8027706d4f32a88c6bd13  vdr-1.7.25.tar.bz2
f34adcdc0cdab378431d8946872d6b59  vdr-1.7.24-1.7.25.diff

WARNING:
========

This is a developer version. Even though I use it in my productive
environment. I strongly recommend that you only use it under controlled
conditions and for testing and debugging.

From the HISTORY file:
- The fps value for channels where it differs from the default is now set correctly
  when pausing live video.
- Increased the average character estimate for calculating tab positions in skins,
  to better suit wide fonts (reported by Rudi Hofer).
- Fixed getting the subsystem ids of DVB devices in case they have been rearranged
  via udev rules.
- Added several cTimer::Set...() functions (suggested by Alexander Rieger).
- Changed the return value of cTimer::SetFile() to 'void'.
- Revoked "Fixed a possible deadlock in time shift mode" because it caused trouble with
  output on vdr-xine and dxr3, and also short glitches when replaying on any output
  device.
- Updated the Estonian OSD texts (thanks to Arthur Konovalov).
- Updated the Finnish OSD texts (thanks to Rolf Ahrenberg).
- Fixed handling subtitle color palettes on channels where subtitles appear
  "word by word" (thanks to Rolf Ahrenberg).
- Fixed upscaling cBitmaps with anti-aliasing (thanks to Rolf Ahrenberg for reporting
  a problem with color palettes in subtitles).
- Fixed getting the video aspect ratio for scaling subtitles.
- Removed the "PrimaryLimit". Old "full featured" DVB cards can be run with the
  --outputonly option to avoid problems with recording high bandwidth channels.
  Besides, with HDTV becoming ever more popular those cards are pretty much obsolete
  by now (the TT S2-6400 has no problems recording and replaying high bandwidth
  channels simultaneously). And, last but not least, people using software players
  won't notice this change, anyway.
- Since cReceivers can have priorities between -99 and 99, the priority
  for an unused device has been changed from -1 to -100.
- If the first event in a schedule has a table id of 0x00, any incoming EIT data for
  that schedule from the DVB stream will be completely ignored. This way an external
  EPG source can fill the schedules with EPG data that will not be messed up with
  that from the DVB data stream. Note, though, that this means VDR can not do VPS
  controlled recordings with such events!
- Added some typecasts to silence gcc compiler warnings (thanks to Rolf Ahrenberg).
- Fixed handling overlapping timers in case a VPS timer with higher priority needs
  to interrupt a timer with lower priority.
- The code for the RCU remote control unit has been moved into a separate plugin
  named "rcu".
  The REMOTE=RCU option in the 'make' call for VDR is now obsolete.
  The command line option --rcu is now obsolete. Use -Prcu instead. If you have
  used --rcu with a device path, use -P"rcu -d<device>".
- Added support for automatically selecting subtitles when playing old PES
  recordings made with the subtitles plugin (thanks to Anssi Hannula).
- Revised priority handling to allow receivers with a priority that is lower than
  that of live viewing (with suggestions from Frank Schmirler):
  + An idle device (one that is not used for live viewing and has no receiver
    attached to it) now has priority IDLEPRIORITY (-100).
  + An unused CAM slot now has priority IDLEPRIORITY.
  + The default priority of a cReceiver is now MINPRIORITY (-99).
  + A device that is used only for live viewing (no matter whether it's in Transfer
    Mode or real live mode) now has priority TRANSFERPRIORITY (-1).
  + The function cDevice::Receiving() now returns true if there is any receiver
    attached to the device. Its boolean parameter has no meaning any more.
  + The default value for the Priority parameter of the function cDevice::ProvidesChannel()
    has been changed to IDLEPRIORITY.
- Added a Query parameter to cDevice::GetDevice(), so that devices can be queried
  without side effects when zapping.
- Replaced min(max()) calls with the new function constrain().
- Fixed handling OSD color button texts in case a menu item has texts of its own
  (reported by Rolf Ahrenberg). If a plugin creates derived cMenuEditItems that set
  color button texts, these should not set the texts directly by calling
  cSkinDisplay::Current()->SetButtons(), but rather call the new member function
  cMenuEditItem::SetHelp().
- Moved the call to cStatus::MsgChannelSwitch(this, 0) to the beginning of
  cDevice::SetChannel(), so that any receivers that have been attached to the
  device by plugins may be detached before the final call to GetDevice().
  This actually reverts "Only calling cStatus::MsgChannelSwitch() if a channel
  is actually going to be switched or has actually been switched successfully"
  which was made in version 1.1.10, so please report if this has any unwanted
  side effects.
2012-03-10 23:52:09 +01:00

1319 lines
43 KiB
C
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/*
* dvbsubtitle.c: DVB subtitles
*
* See the main source file 'vdr.c' for copyright information and
* how to reach the author.
*
* Original author: Marco Schlüßler <marco@lordzodiac.de>
* With some input from the "subtitle plugin" by Pekka Virtanen <pekka.virtanen@sci.fi>
*
* $Id: dvbsubtitle.c 2.27 2012/03/02 10:47:25 kls Exp $
*/
#include "dvbsubtitle.h"
#define __STDC_FORMAT_MACROS // Required for format specifiers
#include <inttypes.h>
#include "device.h"
#include "libsi/si.h"
//#define FINISHPAGE_HACK
#define PAGE_COMPOSITION_SEGMENT 0x10
#define REGION_COMPOSITION_SEGMENT 0x11
#define CLUT_DEFINITION_SEGMENT 0x12
#define OBJECT_DATA_SEGMENT 0x13
#define DISPLAY_DEFINITION_SEGMENT 0x14
#define DISPARITY_SIGNALING_SEGMENT 0x15 // DVB BlueBook A156
#define END_OF_DISPLAY_SET_SEGMENT 0x80
#define STUFFING_SEGMENT 0xFF
// Set these to 'true' for debug output:
static bool DebugConverter = false;
static bool DebugSegments = false;
static bool DebugPages = false;
static bool DebugRegions = false;
static bool DebugObjects = false;
static bool DebugCluts = false;
#define dbgconverter(a...) if (DebugConverter) fprintf(stderr, a)
#define dbgsegments(a...) if (DebugSegments) fprintf(stderr, a)
#define dbgpages(a...) if (DebugPages) fprintf(stderr, a)
#define dbgregions(a...) if (DebugRegions) fprintf(stderr, a)
#define dbgobjects(a...) if (DebugObjects) fprintf(stderr, a)
#define dbgcluts(a...) if (DebugCluts) fprintf(stderr, a)
// --- cSubtitleClut ---------------------------------------------------------
class cSubtitleClut : public cListObject {
private:
int clutId;
int version;
cPalette palette2;
cPalette palette4;
cPalette palette8;
public:
cSubtitleClut(int ClutId);
int ClutId(void) { return clutId; }
int Version(void) { return version; }
void SetVersion(int Version) { version = Version; }
void SetColor(int Bpp, int Index, tColor Color);
const cPalette *GetPalette(int Bpp);
};
cSubtitleClut::cSubtitleClut(int ClutId)
:palette2(2)
,palette4(4)
,palette8(8)
{
int a = 0, r = 0, g = 0, b = 0;
clutId = ClutId;
version = -1;
// ETSI EN 300 743 10.3: 4-entry CLUT default contents
palette2.SetColor(0, ArgbToColor( 0, 0, 0, 0));
palette2.SetColor(1, ArgbToColor(255, 255, 255, 255));
palette2.SetColor(2, ArgbToColor(255, 0, 0, 0));
palette2.SetColor(3, ArgbToColor(255, 127, 127, 127));
// ETSI EN 300 743 10.2: 16-entry CLUT default contents
palette4.SetColor(0, ArgbToColor(0, 0, 0, 0));
for (int i = 1; i < 16; ++i) {
if (i < 8) {
r = (i & 1) ? 255 : 0;
g = (i & 2) ? 255 : 0;
b = (i & 4) ? 255 : 0;
}
else {
r = (i & 1) ? 127 : 0;
g = (i & 2) ? 127 : 0;
b = (i & 4) ? 127 : 0;
}
palette4.SetColor(i, ArgbToColor(255, r, g, b));
}
// ETSI EN 300 743 10.1: 256-entry CLUT default contents
palette8.SetColor(0, ArgbToColor(0, 0, 0, 0));
for (int i = 1; i < 256; ++i) {
if (i < 8) {
r = (i & 1) ? 255 : 0;
g = (i & 2) ? 255 : 0;
b = (i & 4) ? 255 : 0;
a = 63;
}
else {
switch (i & 0x88) {
case 0x00:
r = ((i & 1) ? 85 : 0) + ((i & 0x10) ? 170 : 0);
g = ((i & 2) ? 85 : 0) + ((i & 0x20) ? 170 : 0);
b = ((i & 4) ? 85 : 0) + ((i & 0x40) ? 170 : 0);
a = 255;
break;
case 0x08:
r = ((i & 1) ? 85 : 0) + ((i & 0x10) ? 170 : 0);
g = ((i & 2) ? 85 : 0) + ((i & 0x20) ? 170 : 0);
b = ((i & 4) ? 85 : 0) + ((i & 0x40) ? 170 : 0);
a = 127;
break;
case 0x80:
r = 127 + ((i & 1) ? 43 : 0) + ((i & 0x10) ? 85 : 0);
g = 127 + ((i & 2) ? 43 : 0) + ((i & 0x20) ? 85 : 0);
b = 127 + ((i & 4) ? 43 : 0) + ((i & 0x40) ? 85 : 0);
a = 255;
break;
case 0x88:
r = ((i & 1) ? 43 : 0) + ((i & 0x10) ? 85 : 0);
g = ((i & 2) ? 43 : 0) + ((i & 0x20) ? 85 : 0);
b = ((i & 4) ? 43 : 0) + ((i & 0x40) ? 85 : 0);
a = 255;
break;
}
}
palette8.SetColor(i, ArgbToColor(a, r, g, b));
}
}
void cSubtitleClut::SetColor(int Bpp, int Index, tColor Color)
{
switch (Bpp) {
case 2: palette2.SetColor(Index, Color); break;
case 4: palette4.SetColor(Index, Color); break;
case 8: palette8.SetColor(Index, Color); break;
default: esyslog("ERROR: wrong Bpp in cSubtitleClut::SetColor(%d, %d, %08X)", Bpp, Index, Color);
}
}
const cPalette *cSubtitleClut::GetPalette(int Bpp)
{
switch (Bpp) {
case 2: return &palette2;
case 4: return &palette4;
case 8: return &palette8;
default: esyslog("ERROR: wrong Bpp in cSubtitleClut::GetPalette(%d)", Bpp);
}
return &palette8;
}
// --- cSubtitleObject -------------------------------------------------------
class cSubtitleObject : public cListObject {
private:
int objectId;
int version;
int codingMethod;
bool nonModifyingColorFlag;
uchar backgroundPixelCode;
uchar foregroundPixelCode;
int providerFlag;
int px;
int py;
cBitmap *bitmap;
char textData[Utf8BufSize(256)]; // number of character codes is an 8-bit field
void DrawLine(int x, int y, tIndex Index, int Length);
bool Decode2BppCodeString(cBitStream *bs, int&x, int y, const uint8_t *MapTable);
bool Decode4BppCodeString(cBitStream *bs, int&x, int y, const uint8_t *MapTable);
bool Decode8BppCodeString(cBitStream *bs, int&x, int y);
public:
cSubtitleObject(int ObjectId, cBitmap *Bitmap);
int ObjectId(void) { return objectId; }
int Version(void) { return version; }
int CodingMethod(void) { return codingMethod; }
uchar BackgroundPixelCode(void) { return backgroundPixelCode; }
uchar ForegroundPixelCode(void) { return foregroundPixelCode; }
const char *TextData(void) { return &textData[0]; }
int X(void) { return px; }
int Y(void) { return py; }
bool NonModifyingColorFlag(void) { return nonModifyingColorFlag; }
void DecodeCharacterString(const uchar *Data, int NumberOfCodes);
void DecodeSubBlock(const uchar *Data, int Length, bool Even);
void SetVersion(int Version) { version = Version; }
void SetBackgroundPixelCode(uchar BackgroundPixelCode) { backgroundPixelCode = BackgroundPixelCode; }
void SetForegroundPixelCode(uchar ForegroundPixelCode) { foregroundPixelCode = ForegroundPixelCode; }
void SetNonModifyingColorFlag(bool NonModifyingColorFlag) { nonModifyingColorFlag = NonModifyingColorFlag; }
void SetCodingMethod(int CodingMethod) { codingMethod = CodingMethod; }
void SetPosition(int x, int y) { px = x; py = y; }
void SetProviderFlag(int ProviderFlag) { providerFlag = ProviderFlag; }
};
cSubtitleObject::cSubtitleObject(int ObjectId, cBitmap *Bitmap)
{
objectId = ObjectId;
version = -1;
codingMethod = -1;
nonModifyingColorFlag = false;
backgroundPixelCode = 0;
foregroundPixelCode = 0;
providerFlag = -1;
px = py = 0;
bitmap = Bitmap;
memset(textData, 0, sizeof(textData));
}
void cSubtitleObject::DecodeCharacterString(const uchar *Data, int NumberOfCodes)
{
if (NumberOfCodes > 0) {
bool singleByte;
const uchar *from = &Data[1];
int len = NumberOfCodes * 2 - 1;
cCharSetConv conv(SI::getCharacterTable(from, len, &singleByte));
if (singleByte) {
char txt[NumberOfCodes + 1];
char *p = txt;
for (int i = 2; i < NumberOfCodes; ++i) {
char c = Data[i * 2 + 1] & 0xFF;
if (c == 0)
break;
if (' ' <= c && c <= '~' || c == '\n' || 0xA0 <= c)
*(p++) = c;
else if (c == 0x8A)
*(p++) = '\n';
}
*p = 0;
const char *s = conv.Convert(txt);
Utf8Strn0Cpy(textData, s, Utf8StrLen(s));
}
else {
// TODO: add proper multibyte support for "UTF-16", "EUC-KR", "GB2312", "GBK", "UTF-8"
}
}
}
void cSubtitleObject::DecodeSubBlock(const uchar *Data, int Length, bool Even)
{
int x = 0;
int y = Even ? 0 : 1;
uint8_t map2to4[ 4] = { 0x00, 0x07, 0x08, 0x0F };
uint8_t map2to8[ 4] = { 0x00, 0x77, 0x88, 0xFF };
uint8_t map4to8[16] = { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xAA, 0xBB, 0xCC, 0xDD, 0xEE, 0xFF };
const uint8_t *mapTable = NULL;
cBitStream bs(Data, Length * 8);
while (!bs.IsEOF()) {
switch (bs.GetBits(8)) {
case 0x10:
dbgobjects("2-bit / pixel code string\n");
switch (bitmap->Bpp()) {
case 8: mapTable = map2to8; break;
case 4: mapTable = map2to4; break;
default: mapTable = NULL; break;
}
while (Decode2BppCodeString(&bs, x, y, mapTable) && !bs.IsEOF())
;
bs.ByteAlign();
break;
case 0x11:
dbgobjects("4-bit / pixel code string\n");
switch (bitmap->Bpp()) {
case 8: mapTable = map4to8; break;
default: mapTable = NULL; break;
}
while (Decode4BppCodeString(&bs, x, y, mapTable) && !bs.IsEOF())
;
bs.ByteAlign();
break;
case 0x12:
dbgobjects("8-bit / pixel code string\n");
while (Decode8BppCodeString(&bs, x, y) && !bs.IsEOF())
;
break;
case 0x20:
dbgobjects("sub block 2 to 4 map\n");
map2to4[0] = bs.GetBits(4);
map2to4[1] = bs.GetBits(4);
map2to4[2] = bs.GetBits(4);
map2to4[3] = bs.GetBits(4);
break;
case 0x21:
dbgobjects("sub block 2 to 8 map\n");
for (int i = 0; i < 4; ++i)
map2to8[i] = bs.GetBits(8);
break;
case 0x22:
dbgobjects("sub block 4 to 8 map\n");
for (int i = 0; i < 16; ++i)
map4to8[i] = bs.GetBits(8);
break;
case 0xF0:
dbgobjects("end of object line\n");
x = 0;
y += 2;
break;
default: dbgobjects("unknown sub block %s %d\n", __FUNCTION__, __LINE__);
}
}
}
void cSubtitleObject::DrawLine(int x, int y, tIndex Index, int Length)
{
if (nonModifyingColorFlag && Index == 1)
return;
x += px;
y += py;
for (int pos = x; pos < x + Length; pos++)
bitmap->SetIndex(pos, y, Index);
}
bool cSubtitleObject::Decode2BppCodeString(cBitStream *bs, int &x, int y, const uint8_t *MapTable)
{
int rl = 0;
int color = 0;
uchar code = bs->GetBits(2);
if (code) {
color = code;
rl = 1;
}
else if (bs->GetBit()) { // switch_1
rl = bs->GetBits(3) + 3;
color = bs->GetBits(2);
}
else if (bs->GetBit()) // switch_2
rl = 1; //color 0
else {
switch (bs->GetBits(2)) { // switch_3
case 0:
return false;
case 1:
rl = 2; //color 0
break;
case 2:
rl = bs->GetBits(4) + 12;
color = bs->GetBits(2);
break;
case 3:
rl = bs->GetBits(8) + 29;
color = bs->GetBits(2);
break;
default: ;
}
}
if (MapTable)
color = MapTable[color];
DrawLine(x, y, color, rl);
x += rl;
return true;
}
bool cSubtitleObject::Decode4BppCodeString(cBitStream *bs, int &x, int y, const uint8_t *MapTable)
{
int rl = 0;
int color = 0;
uchar code = bs->GetBits(4);
if (code) {
color = code;
rl = 1;
}
else if (bs->GetBit() == 0) { // switch_1
code = bs->GetBits(3);
if (code)
rl = code + 2; //color 0
else
return false;
}
else if (bs->GetBit() == 0) { // switch_2
rl = bs->GetBits(2) + 4;
color = bs->GetBits(4);
}
else {
switch (bs->GetBits(2)) { // switch_3
case 0: // color 0
rl = 1;
break;
case 1: // color 0
rl = 2;
break;
case 2:
rl = bs->GetBits(4) + 9;
color = bs->GetBits(4);
break;
case 3:
rl = bs->GetBits(8) + 25;
color = bs->GetBits(4);
break;
}
}
if (MapTable)
color = MapTable[color];
DrawLine(x, y, color, rl);
x += rl;
return true;
}
bool cSubtitleObject::Decode8BppCodeString(cBitStream *bs, int &x, int y)
{
int rl = 0;
int color = 0;
uchar code = bs->GetBits(8);
if (code) {
color = code;
rl = 1;
}
else if (bs->GetBit()) {
rl = bs->GetBits(7);
color = bs->GetBits(8);
}
else {
code = bs->GetBits(7);
if (code)
rl = code; // color 0
else
return false;
}
DrawLine(x, y, color, rl);
x += rl;
return true;
}
// --- cSubtitleRegion -------------------------------------------------------
class cSubtitleRegion : public cListObject, public cBitmap {
private:
int regionId;
int version;
int clutId;
int horizontalAddress;
int verticalAddress;
int level;
int lineHeight;
cList<cSubtitleObject> objects;
public:
cSubtitleRegion(int RegionId);
int RegionId(void) { return regionId; }
int Version(void) { return version; }
int ClutId(void) { return clutId; }
int Level(void) { return level; }
int Depth(void) { return Bpp(); }
void FillRegion(tIndex Index);
cSubtitleObject *GetObjectById(int ObjectId, bool New = false);
int HorizontalAddress(void) { return horizontalAddress; }
int VerticalAddress(void) { return verticalAddress; }
void SetVersion(int Version) { version = Version; }
void SetClutId(int ClutId) { clutId = ClutId; }
void SetLevel(int Level);
void SetDepth(int Depth);
void SetHorizontalAddress(int HorizontalAddress) { horizontalAddress = HorizontalAddress; }
void SetVerticalAddress(int VerticalAddress) { verticalAddress = VerticalAddress; }
void UpdateTextData(cSubtitleClut *Clut);
};
cSubtitleRegion::cSubtitleRegion(int RegionId)
:cBitmap(1, 1, 4)
{
regionId = RegionId;
version = -1;
clutId = -1;
horizontalAddress = 0;
verticalAddress = 0;
level = 0;
lineHeight = 26; // configurable subtitling font size
}
void cSubtitleRegion::FillRegion(tIndex Index)
{
dbgregions("FillRegion %d\n", Index);
for (int y = 0; y < Height(); y++) {
for (int x = 0; x < Width(); x++)
SetIndex(x, y, Index);
}
}
cSubtitleObject *cSubtitleRegion::GetObjectById(int ObjectId, bool New)
{
cSubtitleObject *result = NULL;
for (cSubtitleObject *so = objects.First(); so; so = objects.Next(so)) {
if (so->ObjectId() == ObjectId)
result = so;
}
if (!result && New) {
result = new cSubtitleObject(ObjectId, this);
objects.Add(result);
}
return result;
}
void cSubtitleRegion::UpdateTextData(cSubtitleClut *Clut)
{
const cPalette *palette = Clut ? Clut->GetPalette(Depth()) : NULL;
for (cSubtitleObject *so = objects.First(); so && palette; so = objects.Next(so)) {
if (Utf8StrLen(so->TextData()) > 0) {
const cFont *font = cFont::GetFont(fontOsd);
cBitmap *tmp = new cBitmap(font->Width(so->TextData()), font->Height(), Depth());
double factor = (double)lineHeight / font->Height();
tmp->DrawText(0, 0, so->TextData(), palette->Color(so->ForegroundPixelCode()), palette->Color(so->BackgroundPixelCode()), font);
tmp = tmp->Scaled(factor, factor, true);
DrawBitmap(so->X(), so->Y(), *tmp);
DELETENULL(tmp);
}
}
}
void cSubtitleRegion::SetLevel(int Level)
{
if (Level > 0 && Level < 4)
level = 1 << Level;
}
void cSubtitleRegion::SetDepth(int Depth)
{
if (Depth > 0 && Depth < 4)
SetBpp(1 << Depth);
}
// --- cDvbSubtitlePage ------------------------------------------------------
class cDvbSubtitlePage : public cListObject {
private:
int pageId;
int version;
int state;
int64_t pts;
int timeout;
cList<cSubtitleClut> cluts;
public:
cList<cSubtitleRegion> regions;
cDvbSubtitlePage(int PageId);
virtual ~cDvbSubtitlePage();
int PageId(void) { return pageId; }
int Version(void) { return version; }
int State(void) { return state; }
tArea *GetAreas(double FactorX, double FactorY);
cSubtitleClut *GetClutById(int ClutId, bool New = false);
cSubtitleObject *GetObjectById(int ObjectId);
cSubtitleRegion *GetRegionById(int RegionId, bool New = false);
int64_t Pts(void) const { return pts; }
int Timeout(void) { return timeout; }
void SetVersion(int Version) { version = Version; }
void SetPts(int64_t Pts) { pts = Pts; }
void SetState(int State);
void SetTimeout(int Timeout) { timeout = Timeout; }
};
cDvbSubtitlePage::cDvbSubtitlePage(int PageId)
{
pageId = PageId;
version = -1;
state = -1;
pts = 0;
timeout = 0;
}
cDvbSubtitlePage::~cDvbSubtitlePage()
{
}
tArea *cDvbSubtitlePage::GetAreas(double FactorX, double FactorY)
{
if (regions.Count() > 0) {
tArea *Areas = new tArea[regions.Count()];
tArea *a = Areas;
for (cSubtitleRegion *sr = regions.First(); sr; sr = regions.Next(sr)) {
a->x1 = int(round(FactorX * sr->HorizontalAddress()));
a->y1 = int(round(FactorY * sr->VerticalAddress()));
a->x2 = int(round(FactorX * (sr->HorizontalAddress() + sr->Width() - 1)));
a->y2 = int(round(FactorY * (sr->VerticalAddress() + sr->Height() - 1)));
a->bpp = sr->Bpp();
while ((a->Width() & 3) != 0)
a->x2++; // aligns width to a multiple of 4, so 2, 4 and 8 bpp will work
a++;
}
return Areas;
}
return NULL;
}
cSubtitleClut *cDvbSubtitlePage::GetClutById(int ClutId, bool New)
{
cSubtitleClut *result = NULL;
for (cSubtitleClut *sc = cluts.First(); sc; sc = cluts.Next(sc)) {
if (sc->ClutId() == ClutId)
result = sc;
}
if (!result && New) {
result = new cSubtitleClut(ClutId);
cluts.Add(result);
}
return result;
}
cSubtitleRegion *cDvbSubtitlePage::GetRegionById(int RegionId, bool New)
{
cSubtitleRegion *result = NULL;
for (cSubtitleRegion *sr = regions.First(); sr; sr = regions.Next(sr)) {
if (sr->RegionId() == RegionId)
result = sr;
}
if (!result && New) {
result = new cSubtitleRegion(RegionId);
regions.Add(result);
}
return result;
}
cSubtitleObject *cDvbSubtitlePage::GetObjectById(int ObjectId)
{
cSubtitleObject *result = NULL;
for (cSubtitleRegion *sr = regions.First(); sr && !result; sr = regions.Next(sr))
result = sr->GetObjectById(ObjectId);
return result;
}
void cDvbSubtitlePage::SetState(int State)
{
state = State;
switch (state) {
case 0: // normal case - page update
dbgpages("page update\n");
break;
case 1: // acquisition point - page refresh
dbgpages("page refresh\n");
regions.Clear();
break;
case 2: // mode change - new page
dbgpages("new Page\n");
regions.Clear();
cluts.Clear();
break;
case 3: // reserved
break;
default: dbgpages("unknown page state (%s %d)\n", __FUNCTION__, __LINE__);
}
}
// --- cDvbSubtitleAssembler -------------------------------------------------
class cDvbSubtitleAssembler {
private:
uchar *data;
int length;
int pos;
int size;
bool Realloc(int Size);
public:
cDvbSubtitleAssembler(void);
virtual ~cDvbSubtitleAssembler();
void Reset(void);
unsigned char *Get(int &Length);
void Put(const uchar *Data, int Length);
};
cDvbSubtitleAssembler::cDvbSubtitleAssembler(void)
{
data = NULL;
size = 0;
Reset();
}
cDvbSubtitleAssembler::~cDvbSubtitleAssembler()
{
free(data);
}
void cDvbSubtitleAssembler::Reset(void)
{
length = 0;
pos = 0;
}
bool cDvbSubtitleAssembler::Realloc(int Size)
{
if (Size > size) {
Size = max(Size, 2048);
if (uchar *NewBuffer = (uchar *)realloc(data, Size)) {
size = Size;
data = NewBuffer;
}
else {
esyslog("ERROR: can't allocate memory for subtitle assembler");
length = 0;
size = 0;
free(data);
data = NULL;
return false;
}
}
return true;
}
unsigned char *cDvbSubtitleAssembler::Get(int &Length)
{
if (length > pos + 5) {
Length = (data[pos + 4] << 8) + data[pos + 5] + 6;
if (length >= pos + Length) {
unsigned char *result = data + pos;
pos += Length;
return result;
}
}
return NULL;
}
void cDvbSubtitleAssembler::Put(const uchar *Data, int Length)
{
if (Length && Realloc(length + Length)) {
memcpy(data + length, Data, Length);
length += Length;
}
}
// --- cDvbSubtitleBitmaps ---------------------------------------------------
class cDvbSubtitleBitmaps : public cListObject {
private:
int64_t pts;
int timeout;
tArea *areas;
int numAreas;
double osdFactorX;
double osdFactorY;
cVector<cBitmap *> bitmaps;
public:
cDvbSubtitleBitmaps(int64_t Pts, int Timeout, tArea *Areas, int NumAreas, double OsdFactorX, double OsdFactorY);
~cDvbSubtitleBitmaps();
int64_t Pts(void) { return pts; }
int Timeout(void) { return timeout; }
void AddBitmap(cBitmap *Bitmap);
void Draw(cOsd *Osd);
};
cDvbSubtitleBitmaps::cDvbSubtitleBitmaps(int64_t Pts, int Timeout, tArea *Areas, int NumAreas, double OsdFactorX, double OsdFactorY)
{
pts = Pts;
timeout = Timeout;
areas = Areas;
numAreas = NumAreas;
osdFactorX = OsdFactorX;
osdFactorY = OsdFactorY;
}
cDvbSubtitleBitmaps::~cDvbSubtitleBitmaps()
{
delete[] areas;
for (int i = 0; i < bitmaps.Size(); i++)
delete bitmaps[i];
}
void cDvbSubtitleBitmaps::AddBitmap(cBitmap *Bitmap)
{
bitmaps.Append(Bitmap);
}
void cDvbSubtitleBitmaps::Draw(cOsd *Osd)
{
bool Scale = !(DoubleEqual(osdFactorX, 1.0) && DoubleEqual(osdFactorY, 1.0));
bool AntiAlias = true;
if (Scale && osdFactorX > 1.0 || osdFactorY > 1.0) {
// Upscaling requires 8bpp:
int Bpp[MAXOSDAREAS];
for (int i = 0; i < numAreas; i++) {
Bpp[i] = areas[i].bpp;
areas[i].bpp = 8;
}
if (Osd->CanHandleAreas(areas, numAreas) != oeOk) {
for (int i = 0; i < numAreas; i++)
Bpp[i] = areas[i].bpp = Bpp[i];
AntiAlias = false;
}
}
if (Osd->SetAreas(areas, numAreas) == oeOk) {
for (int i = 0; i < bitmaps.Size(); i++) {
cBitmap *b = bitmaps[i];
if (Scale)
b = b->Scaled(osdFactorX, osdFactorY, AntiAlias);
Osd->DrawBitmap(int(round(b->X0() * osdFactorX)), int(round(b->Y0() * osdFactorY)), *b);
if (b != bitmaps[i])
delete b;
}
Osd->Flush();
}
}
// --- cDvbSubtitleConverter -------------------------------------------------
int cDvbSubtitleConverter::setupLevel = 0;
cDvbSubtitleConverter::cDvbSubtitleConverter(void)
:cThread("subtitleConverter")
{
dvbSubtitleAssembler = new cDvbSubtitleAssembler;
osd = NULL;
frozen = false;
ddsVersionNumber = -1;
displayWidth = windowWidth = 720;
displayHeight = windowHeight = 576;
windowHorizontalOffset = 0;
windowVerticalOffset = 0;
pages = new cList<cDvbSubtitlePage>;
bitmaps = new cList<cDvbSubtitleBitmaps>;
Start();
}
cDvbSubtitleConverter::~cDvbSubtitleConverter()
{
Cancel(3);
delete dvbSubtitleAssembler;
delete osd;
delete bitmaps;
delete pages;
}
void cDvbSubtitleConverter::SetupChanged(void)
{
setupLevel++;
}
void cDvbSubtitleConverter::Reset(void)
{
dbgconverter("Converter reset -----------------------\n");
dvbSubtitleAssembler->Reset();
Lock();
pages->Clear();
bitmaps->Clear();
DELETENULL(osd);
frozen = false;
ddsVersionNumber = -1;
displayWidth = windowWidth = 720;
displayHeight = windowHeight = 576;
windowHorizontalOffset = 0;
windowVerticalOffset = 0;
Unlock();
}
int cDvbSubtitleConverter::ConvertFragments(const uchar *Data, int Length)
{
if (Data && Length > 8) {
int PayloadOffset = PesPayloadOffset(Data);
int SubstreamHeaderLength = 4;
bool ResetSubtitleAssembler = Data[PayloadOffset + 3] == 0x00;
// Compatibility mode for old subtitles plugin:
if ((Data[7] & 0x01) && (Data[PayloadOffset - 3] & 0x81) == 0x01 && Data[PayloadOffset - 2] == 0x81) {
PayloadOffset--;
SubstreamHeaderLength = 1;
ResetSubtitleAssembler = Data[8] >= 5;
}
if (Length > PayloadOffset + SubstreamHeaderLength) {
int64_t pts = PesHasPts(Data) ? PesGetPts(Data) : 0;
if (pts)
dbgconverter("Converter PTS: %"PRId64"\n", pts);
const uchar *data = Data + PayloadOffset + SubstreamHeaderLength; // skip substream header
int length = Length - PayloadOffset - SubstreamHeaderLength; // skip substream header
if (ResetSubtitleAssembler)
dvbSubtitleAssembler->Reset();
if (length > 3) {
if (data[0] == 0x20 && data[1] == 0x00 && data[2] == 0x0F)
dvbSubtitleAssembler->Put(data + 2, length - 2);
else
dvbSubtitleAssembler->Put(data, length);
int Count;
while (true) {
unsigned char *b = dvbSubtitleAssembler->Get(Count);
if (b && b[0] == 0x0F) {
if (ExtractSegment(b, Count, pts) == -1)
break;
}
else
break;
}
}
}
return Length;
}
return 0;
}
int cDvbSubtitleConverter::Convert(const uchar *Data, int Length)
{
if (Data && Length > 8) {
int PayloadOffset = PesPayloadOffset(Data);
if (Length > PayloadOffset) {
int64_t pts = PesGetPts(Data);
if (pts)
dbgconverter("Converter PTS: %"PRId64"\n", pts);
const uchar *data = Data + PayloadOffset;
int length = Length - PayloadOffset;
if (length > 3) {
if (data[0] == 0x20 && data[1] == 0x00 && data[2] == 0x0F) {
data += 2;
length -= 2;
}
const uchar *b = data;
while (length > 0) {
if (b[0] == 0x0F) {
int n = ExtractSegment(b, length, pts);
if (n < 0)
break;
b += n;
length -= n;
}
else
break;
}
}
}
return Length;
}
return 0;
}
#define LimitTo32Bit(n) ((n) & 0x00000000FFFFFFFFL)
#define MAXDELTA 40000 // max. reasonable PTS/STC delta in ms
void cDvbSubtitleConverter::Action(void)
{
int LastSetupLevel = setupLevel;
cTimeMs Timeout;
while (Running()) {
int WaitMs = 100;
if (!frozen) {
LOCK_THREAD;
if (osd) {
int NewSetupLevel = setupLevel;
if (Timeout.TimedOut() || LastSetupLevel != NewSetupLevel) {
DELETENULL(osd);
}
LastSetupLevel = NewSetupLevel;
}
if (cDvbSubtitleBitmaps *sb = bitmaps->First()) {
int64_t STC = cDevice::PrimaryDevice()->GetSTC();
int64_t Delta = LimitTo32Bit(sb->Pts()) - LimitTo32Bit(STC); // some devices only deliver 32 bits
if (Delta > (int64_t(1) << 31))
Delta -= (int64_t(1) << 32);
else if (Delta < -((int64_t(1) << 31) - 1))
Delta += (int64_t(1) << 32);
Delta /= 90; // STC and PTS are in 1/90000s
if (Delta <= MAXDELTA) {
if (Delta <= 0) {
dbgconverter("Got %d bitmaps, showing #%d\n", bitmaps->Count(), sb->Index() + 1);
if (AssertOsd()) {
sb->Draw(osd);
Timeout.Set(sb->Timeout() * 1000);
dbgconverter("PTS: %"PRId64" STC: %"PRId64" (%"PRId64") timeout: %d\n", sb->Pts(), cDevice::PrimaryDevice()->GetSTC(), Delta, sb->Timeout());
}
bitmaps->Del(sb);
}
else if (Delta < WaitMs)
WaitMs = Delta;
}
else
bitmaps->Del(sb);
}
}
cCondWait::SleepMs(WaitMs);
}
}
tColor cDvbSubtitleConverter::yuv2rgb(int Y, int Cb, int Cr)
{
int Ey, Epb, Epr;
int Eg, Eb, Er;
Ey = (Y - 16);
Epb = (Cb - 128);
Epr = (Cr - 128);
/* ITU-R 709 */
Er = constrain((298 * Ey + 460 * Epr) / 256, 0, 255);
Eg = constrain((298 * Ey - 55 * Epb - 137 * Epr) / 256, 0, 255);
Eb = constrain((298 * Ey + 543 * Epb ) / 256, 0, 255);
return (Er << 16) | (Eg << 8) | Eb;
}
void cDvbSubtitleConverter::SetOsdData(void)
{
int OsdWidth, OsdHeight;
double OsdAspect;
int VideoWidth, VideoHeight;
double VideoAspect;
cDevice::PrimaryDevice()->GetOsdSize(OsdWidth, OsdHeight, OsdAspect);
cDevice::PrimaryDevice()->GetVideoSize(VideoWidth, VideoHeight, VideoAspect);
if (OsdWidth == displayWidth && OsdHeight == displayHeight) {
osdFactorX = osdFactorY = 1.0;
osdDeltaX = osdDeltaY = 0;
}
else {
osdFactorX = VideoAspect * OsdHeight / displayWidth;
osdFactorY = double(OsdHeight) / displayHeight;
osdDeltaX = (OsdWidth - displayWidth * osdFactorX) / 2;
osdDeltaY = (OsdHeight - displayHeight * osdFactorY) / 2;
}
}
bool cDvbSubtitleConverter::AssertOsd(void)
{
LOCK_THREAD;
if (!osd) {
SetOsdData();
osd = cOsdProvider::NewOsd(int(round(osdFactorX * windowHorizontalOffset + osdDeltaX)), int(round(osdFactorY * windowVerticalOffset + osdDeltaY)) + Setup.SubtitleOffset, OSD_LEVEL_SUBTITLES);
}
return osd != NULL;
}
int cDvbSubtitleConverter::ExtractSegment(const uchar *Data, int Length, int64_t Pts)
{
cBitStream bs(Data, Length * 8);
if (Length > 5 && bs.GetBits(8) == 0x0F) { // sync byte
int segmentType = bs.GetBits(8);
if (segmentType == STUFFING_SEGMENT)
return -1;
int pageId = bs.GetBits(16);
int segmentLength = bs.GetBits(16);
if (!bs.SetLength(bs.Index() + segmentLength * 8))
return -1;
cDvbSubtitlePage *page = NULL;
LOCK_THREAD;
for (cDvbSubtitlePage *sp = pages->First(); sp; sp = pages->Next(sp)) {
if (sp->PageId() == pageId) {
page = sp;
break;
}
}
if (!page) {
page = new cDvbSubtitlePage(pageId);
pages->Add(page);
dbgpages("Create SubtitlePage %d (total pages = %d)\n", pageId, pages->Count());
}
if (Pts)
page->SetPts(Pts);
switch (segmentType) {
case PAGE_COMPOSITION_SEGMENT: {
dbgsegments("PAGE_COMPOSITION_SEGMENT\n");
int pageTimeout = bs.GetBits(8);
int pageVersion = bs.GetBits(4);
if (pageVersion == page->Version())
break; // no update
page->SetVersion(pageVersion);
page->SetTimeout(pageTimeout);
page->SetState(bs.GetBits(2));
bs.SkipBits(2); // reserved
dbgpages("Update page id %d version %d pts %"PRId64" timeout %d state %d\n", pageId, page->Version(), page->Pts(), page->Timeout(), page->State());
while (!bs.IsEOF()) {
cSubtitleRegion *region = page->GetRegionById(bs.GetBits(8), true);
bs.SkipBits(8); // reserved
region->SetHorizontalAddress(bs.GetBits(16));
region->SetVerticalAddress(bs.GetBits(16));
}
break;
}
case REGION_COMPOSITION_SEGMENT: {
dbgsegments("REGION_COMPOSITION_SEGMENT\n");
cSubtitleRegion *region = page->GetRegionById(bs.GetBits(8));
if (!region)
break;
int regionVersion = bs.GetBits(4);
if (regionVersion == region->Version())
break; // no update
region->SetVersion(regionVersion);
bool regionFillFlag = bs.GetBit();
bs.SkipBits(3); // reserved
int regionWidth = bs.GetBits(16);
if (regionWidth < 1)
regionWidth = 1;
int regionHeight = bs.GetBits(16);
if (regionHeight < 1)
regionHeight = 1;
region->SetSize(regionWidth, regionHeight);
region->SetLevel(bs.GetBits(3));
region->SetDepth(bs.GetBits(3));
bs.SkipBits(2); // reserved
region->SetClutId(bs.GetBits(8));
dbgregions("Region pageId %d id %d version %d fill %d width %d height %d level %d depth %d clutId %d\n", pageId, region->RegionId(), region->Version(), regionFillFlag, regionWidth, regionHeight, region->Level(), region->Depth(), region->ClutId());
int region8bitPixelCode = bs.GetBits(8);
int region4bitPixelCode = bs.GetBits(4);
int region2bitPixelCode = bs.GetBits(2);
bs.SkipBits(2); // reserved
if (regionFillFlag) {
switch (region->Bpp()) {
case 2: region->FillRegion(region8bitPixelCode); break;
case 4: region->FillRegion(region4bitPixelCode); break;
case 8: region->FillRegion(region2bitPixelCode); break;
default: dbgregions("unknown bpp %d (%s %d)\n", region->Bpp(), __FUNCTION__, __LINE__);
}
}
while (!bs.IsEOF()) {
cSubtitleObject *object = region->GetObjectById(bs.GetBits(16), true);
int objectType = bs.GetBits(2);
object->SetCodingMethod(objectType);
object->SetProviderFlag(bs.GetBits(2));
int objectHorizontalPosition = bs.GetBits(12);
bs.SkipBits(4); // reserved
int objectVerticalPosition = bs.GetBits(12);
object->SetPosition(objectHorizontalPosition, objectVerticalPosition);
if (objectType == 0x01 || objectType == 0x02) {
object->SetForegroundPixelCode(bs.GetBits(8));
object->SetBackgroundPixelCode(bs.GetBits(8));
}
}
break;
}
case CLUT_DEFINITION_SEGMENT: {
dbgsegments("CLUT_DEFINITION_SEGMENT\n");
cSubtitleClut *clut = page->GetClutById(bs.GetBits(8), true);
int clutVersion = bs.GetBits(4);
if (clutVersion == clut->Version())
break; // no update
clut->SetVersion(clutVersion);
bs.SkipBits(4); // reserved
dbgcluts("Clut pageId %d id %d version %d\n", pageId, clut->ClutId(), clut->Version());
while (!bs.IsEOF()) {
uchar clutEntryId = bs.GetBits(8);
bool entryClut2Flag = bs.GetBit();
bool entryClut4Flag = bs.GetBit();
bool entryClut8Flag = bs.GetBit();
bs.SkipBits(4); // reserved
uchar yval;
uchar crval;
uchar cbval;
uchar tval;
if (bs.GetBit()) { // full_range_flag
yval = bs.GetBits(8);
crval = bs.GetBits(8);
cbval = bs.GetBits(8);
tval = bs.GetBits(8);
}
else {
yval = bs.GetBits(6) << 2;
crval = bs.GetBits(4) << 4;
cbval = bs.GetBits(4) << 4;
tval = bs.GetBits(2) << 6;
}
tColor value = 0;
if (yval) {
value = yuv2rgb(yval, cbval, crval);
value |= ((10 - (clutEntryId ? Setup.SubtitleFgTransparency : Setup.SubtitleBgTransparency)) * (255 - tval) / 10) << 24;
}
dbgcluts("%2d %d %d %d %08X\n", clutEntryId, entryClut2Flag ? 2 : 0, entryClut4Flag ? 4 : 0, entryClut8Flag ? 8 : 0, value);
if (entryClut2Flag)
clut->SetColor(2, clutEntryId, value);
if (entryClut4Flag)
clut->SetColor(4, clutEntryId, value);
if (entryClut8Flag)
clut->SetColor(8, clutEntryId, value);
}
dbgcluts("\n");
break;
}
case OBJECT_DATA_SEGMENT: {
dbgsegments("OBJECT_DATA_SEGMENT\n");
cSubtitleObject *object = page->GetObjectById(bs.GetBits(16));
if (!object)
break;
int objectVersion = bs.GetBits(4);
if (objectVersion == object->Version())
break; // no update
object->SetVersion(objectVersion);
int codingMethod = bs.GetBits(2);
object->SetNonModifyingColorFlag(bs.GetBit());
bs.SkipBit(); // reserved
dbgobjects("Object pageId %d id %d version %d method %d modify %d\n", pageId, object->ObjectId(), object->Version(), object->CodingMethod(), object->NonModifyingColorFlag());
if (codingMethod == 0) { // coding of pixels
int topFieldLength = bs.GetBits(16);
int bottomFieldLength = bs.GetBits(16);
object->DecodeSubBlock(bs.GetData(), topFieldLength, true);
if (bottomFieldLength)
object->DecodeSubBlock(bs.GetData() + topFieldLength, bottomFieldLength, false);
else
object->DecodeSubBlock(bs.GetData(), topFieldLength, false);
bs.WordAlign();
}
else if (codingMethod == 1) { // coded as a string of characters
int numberOfCodes = bs.GetBits(8);
object->DecodeCharacterString(bs.GetData(), numberOfCodes);
}
#ifdef FINISHPAGE_HACK
FinishPage(page); // flush to OSD right away
#endif
break;
}
case DISPLAY_DEFINITION_SEGMENT: {
dbgsegments("DISPLAY_DEFINITION_SEGMENT\n");
int version = bs.GetBits(4);
if (version != ddsVersionNumber) {
bool displayWindowFlag = bs.GetBit();
windowHorizontalOffset = 0;
windowVerticalOffset = 0;
bs.SkipBits(3); // reserved
displayWidth = windowWidth = bs.GetBits(16) + 1;
displayHeight = windowHeight = bs.GetBits(16) + 1;
if (displayWindowFlag) {
windowHorizontalOffset = bs.GetBits(16); // displayWindowHorizontalPositionMinimum
windowWidth = bs.GetBits(16) - windowHorizontalOffset + 1; // displayWindowHorizontalPositionMaximum
windowVerticalOffset = bs.GetBits(16); // displayWindowVerticalPositionMinimum
windowHeight = bs.GetBits(16) - windowVerticalOffset + 1; // displayWindowVerticalPositionMaximum
}
SetOsdData();
SetupChanged();
ddsVersionNumber = version;
}
break;
}
case DISPARITY_SIGNALING_SEGMENT: {
dbgsegments("DISPARITY_SIGNALING_SEGMENT\n");
bs.SkipBits(4); // dss_version_number
bool disparity_shift_update_sequence_page_flag = bs.GetBit();
bs.SkipBits(3); // reserved
bs.SkipBits(8); // page_default_disparity_shift
if (disparity_shift_update_sequence_page_flag) {
bs.SkipBits(8); // disparity_shift_update_sequence_length
bs.SkipBits(24); // interval_duration[23..0]
int division_period_count = bs.GetBits(8);
for (int i = 0; i < division_period_count; ++i) {
bs.SkipBits(8); // interval_count
bs.SkipBits(8); // disparity_shift_update_integer_part
}
}
while (!bs.IsEOF()) {
bs.SkipBits(8); // region_id
bool disparity_shift_update_sequence_region_flag = bs.GetBit();
bs.SkipBits(5); // reserved
int number_of_subregions_minus_1 = bs.GetBits(2);
for (int i = 0; i <= number_of_subregions_minus_1; ++i) {
if (number_of_subregions_minus_1 > 0) {
bs.SkipBits(16); // subregion_horizontal_position
bs.SkipBits(16); // subregion_width
}
bs.SkipBits(8); // subregion_disparity_shift_integer_part
bs.SkipBits(4); // subregion_disparity_shift_fractional_part
bs.SkipBits(4); // reserved
if (disparity_shift_update_sequence_region_flag) {
bs.SkipBits(8); // disparity_shift_update_sequence_length
bs.SkipBits(24); // interval_duration[23..0]
int division_period_count = bs.GetBits(8);
for (int i = 0; i < division_period_count; ++i) {
bs.SkipBits(8); // interval_count
bs.SkipBits(8); // disparity_shift_update_integer_part
}
}
}
}
break;
}
case END_OF_DISPLAY_SET_SEGMENT: {
dbgsegments("END_OF_DISPLAY_SET_SEGMENT\n");
FinishPage(page);
break;
}
default:
dbgsegments("*** unknown segment type: %02X\n", segmentType);
}
return bs.Length() / 8;
}
return -1;
}
void cDvbSubtitleConverter::FinishPage(cDvbSubtitlePage *Page)
{
if (!AssertOsd())
return;
tArea *Areas = Page->GetAreas(osdFactorX, osdFactorY);
int NumAreas = Page->regions.Count();
int Bpp = 8;
bool Reduced = false;
while (osd && osd->CanHandleAreas(Areas, NumAreas) != oeOk) {
int HalfBpp = Bpp / 2;
if (HalfBpp >= 2) {
for (int i = 0; i < NumAreas; i++) {
if (Areas[i].bpp >= Bpp) {
Areas[i].bpp = HalfBpp;
Reduced = true;
}
}
Bpp = HalfBpp;
}
else
return; // unable to draw bitmaps
}
if (Reduced) {
for (int i = 0; i < NumAreas; i++) {
cSubtitleRegion *sr = Page->regions.Get(i);
if (sr->Bpp() != Areas[i].bpp) {
if (sr->Level() <= Areas[i].bpp) {
//TODO this is untested - didn't have any such subtitle stream
cSubtitleClut *Clut = Page->GetClutById(sr->ClutId());
if (Clut) {
dbgregions("reduce region %d bpp %d level %d area bpp %d\n", sr->RegionId(), sr->Bpp(), sr->Level(), Areas[i].bpp);
sr->ReduceBpp(*Clut->GetPalette(sr->Bpp()));
}
}
else {
dbgregions("condense region %d bpp %d level %d area bpp %d\n", sr->RegionId(), sr->Bpp(), sr->Level(), Areas[i].bpp);
sr->ShrinkBpp(Areas[i].bpp);
}
}
}
}
cDvbSubtitleBitmaps *Bitmaps = new cDvbSubtitleBitmaps(Page->Pts(), Page->Timeout(), Areas, NumAreas, osdFactorX, osdFactorY);
bitmaps->Add(Bitmaps);
for (cSubtitleRegion *sr = Page->regions.First(); sr; sr = Page->regions.Next(sr)) {
cSubtitleClut *clut = Page->GetClutById(sr->ClutId());
if (!clut)
continue;
sr->Replace(*clut->GetPalette(sr->Bpp()));
sr->UpdateTextData(clut);
int posX = sr->HorizontalAddress();
int posY = sr->VerticalAddress();
if (sr->Width() > 0 && sr->Height() > 0) {
cBitmap *bm = new cBitmap(sr->Width(), sr->Height(), sr->Bpp(), posX, posY);
bm->DrawBitmap(posX, posY, *sr);
Bitmaps->AddBitmap(bm);
}
}
}
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