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-rw-r--r--dvbsubtitle.c120
1 files changed, 75 insertions, 45 deletions
diff --git a/dvbsubtitle.c b/dvbsubtitle.c
index 5494374..c1a0a0c 100644
--- a/dvbsubtitle.c
+++ b/dvbsubtitle.c
@@ -7,7 +7,7 @@
* Original author: Marco Schlüßler <marco@lordzodiac.de>
* With some input from the "subtitle plugin" by Pekka Virtanen <pekka.virtanen@sci.fi>
*
- * $Id: dvbsubtitle.c 2.7 2010/08/29 14:08:23 kls Exp $
+ * $Id: dvbsubtitle.c 2.11 2011/03/12 15:13:03 kls Exp $
*/
#include "dvbsubtitle.h"
@@ -420,7 +420,7 @@ public:
int PageId(void) { return pageId; }
int Version(void) { return version; }
int State(void) { return state; }
- tArea *GetAreas(void);
+ tArea *GetAreas(double Factor);
cSubtitleClut *GetClutById(int ClutId, bool New = false);
cSubtitleObject *GetObjectById(int ObjectId);
cSubtitleRegion *GetRegionById(int RegionId, bool New = false);
@@ -446,16 +446,16 @@ cDvbSubtitlePage::~cDvbSubtitlePage()
{
}
-tArea *cDvbSubtitlePage::GetAreas(void)
+tArea *cDvbSubtitlePage::GetAreas(double Factor)
{
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 = sr->HorizontalAddress();
- a->y1 = sr->VerticalAddress();
- a->x2 = sr->HorizontalAddress() + sr->Width() - 1;
- a->y2 = sr->VerticalAddress() + sr->Height() - 1;
+ a->x1 = int(round(Factor * sr->HorizontalAddress()));
+ a->y1 = int(round(Factor * sr->VerticalAddress()));
+ a->x2 = int(round(Factor * (sr->HorizontalAddress() + sr->Width() - 1)));
+ a->y2 = int(round(Factor * (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
@@ -570,12 +570,17 @@ void cDvbSubtitleAssembler::Reset(void)
bool cDvbSubtitleAssembler::Realloc(int Size)
{
if (Size > size) {
- size = max(Size, 2048);
- data = (uchar *)realloc(data, size);
- if (!data) {
+ 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;
}
}
@@ -611,9 +616,10 @@ private:
int timeout;
tArea *areas;
int numAreas;
+ double osdFactor;
cVector<cBitmap *> bitmaps;
public:
- cDvbSubtitleBitmaps(int64_t Pts, int Timeout, tArea *Areas, int NumAreas);
+ cDvbSubtitleBitmaps(int64_t Pts, int Timeout, tArea *Areas, int NumAreas, double OsdFactor);
~cDvbSubtitleBitmaps();
int64_t Pts(void) { return pts; }
int Timeout(void) { return timeout; }
@@ -621,12 +627,13 @@ public:
void Draw(cOsd *Osd);
};
-cDvbSubtitleBitmaps::cDvbSubtitleBitmaps(int64_t Pts, int Timeout, tArea *Areas, int NumAreas)
+cDvbSubtitleBitmaps::cDvbSubtitleBitmaps(int64_t Pts, int Timeout, tArea *Areas, int NumAreas, double OsdFactor)
{
pts = Pts;
timeout = Timeout;
areas = Areas;
numAreas = NumAreas;
+ osdFactor = OsdFactor;
}
cDvbSubtitleBitmaps::~cDvbSubtitleBitmaps()
@@ -644,8 +651,14 @@ void cDvbSubtitleBitmaps::AddBitmap(cBitmap *Bitmap)
void cDvbSubtitleBitmaps::Draw(cOsd *Osd)
{
if (Osd->SetAreas(areas, numAreas) == oeOk) {
- for (int i = 0; i < bitmaps.Size(); i++)
- Osd->DrawBitmap(bitmaps[i]->X0(), bitmaps[i]->Y0(), *bitmaps[i]);
+ for (int i = 0; i < bitmaps.Size(); i++) {
+ cBitmap *b = bitmaps[i];
+ if (osdFactor != 1.0)
+ b = b->Scale(osdFactor, osdFactor);
+ Osd->DrawBitmap(int(round(b->X0() * osdFactor)), int(round(b->Y0() * osdFactor)), *b);
+ if (b != bitmaps[i])
+ delete b;
+ }
Osd->Flush();
}
}
@@ -661,10 +674,11 @@ cDvbSubtitleConverter::cDvbSubtitleConverter(void)
osd = NULL;
frozen = false;
ddsVersionNumber = -1;
- displayWidth = 720;
- displayHeight = 576;
- displayHorizontalOffset = 0;
- displayVerticalOffset = 0;
+ displayWidth = windowWidth = 720;
+ displayHeight = windowHeight = 576;
+ windowHorizontalOffset = 0;
+ windowVerticalOffset = 0;
+ SetOsdData();
pages = new cList<cDvbSubtitlePage>;
bitmaps = new cList<cDvbSubtitleBitmaps>;
Start();
@@ -694,10 +708,11 @@ void cDvbSubtitleConverter::Reset(void)
DELETENULL(osd);
frozen = false;
ddsVersionNumber = -1;
- displayWidth = 720;
- displayHeight = 576;
- displayHorizontalOffset = 0;
- displayVerticalOffset = 0;
+ displayWidth = windowWidth = 720;
+ displayHeight = windowHeight = 576;
+ windowHorizontalOffset = 0;
+ windowVerticalOffset = 0;
+ SetOsdData();
Unlock();
}
@@ -781,7 +796,7 @@ int cDvbSubtitleConverter::Convert(const uchar *Data, int Length)
return 0;
}
-#define LimitTo32Bit(n) (n & 0x00000000FFFFFFFFL)
+#define LimitTo32Bit(n) ((n) & 0x00000000FFFFFFFFL)
#define MAXDELTA 40000 // max. reasonable PTS/STC delta in ms
void cDvbSubtitleConverter::Action(void)
@@ -801,17 +816,11 @@ void cDvbSubtitleConverter::Action(void)
Lock();
if (cDvbSubtitleBitmaps *sb = bitmaps->First()) {
int64_t STC = cDevice::PrimaryDevice()->GetSTC();
- int64_t Delta = 0;
- if (STC >= 0) {
- 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);
- }
- else {
- //TODO sync on PTS? are there actually devices that don't deliver an STC?
- }
+ 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) {
@@ -851,9 +860,29 @@ tColor cDvbSubtitleConverter::yuv2rgb(int Y, int Cb, int Cr)
return (Er << 16) | (Eg << 8) | Eb;
}
+void cDvbSubtitleConverter::SetOsdData(void)
+{
+ int OsdWidth;
+ int OsdHeight;
+ double OsdAspect;
+ cDevice::PrimaryDevice()->GetOsdSize(OsdWidth, OsdHeight, OsdAspect);
+ osdDeltaX = osdDeltaY = 0;
+ osdFactor = 1.0;
+ double fw = double(OsdWidth) / displayWidth;
+ double fh = double(OsdHeight) / displayHeight;
+ if (fw >= fh) {
+ osdFactor = fh;
+ osdDeltaX = (OsdWidth - displayWidth * osdFactor) / 2;
+ }
+ else {
+ osdFactor = fw;
+ osdDeltaY = (OsdHeight - displayHeight * osdFactor) / 2;
+ }
+}
+
bool cDvbSubtitleConverter::AssertOsd(void)
{
- return osd || (osd = cOsdProvider::NewOsd(displayHorizontalOffset, displayVerticalOffset + Setup.SubtitleOffset, OSD_LEVEL_SUBTITLES));
+ return osd || (osd = cOsdProvider::NewOsd(int(round(osdFactor * windowHorizontalOffset + osdDeltaX)), int(round(osdFactor * windowVerticalOffset + osdDeltaY)) + Setup.SubtitleOffset, OSD_LEVEL_SUBTITLES));
}
int cDvbSubtitleConverter::ExtractSegment(const uchar *Data, int Length, int64_t Pts)
@@ -1017,16 +1046,17 @@ int cDvbSubtitleConverter::ExtractSegment(const uchar *Data, int Length, int64_t
int version = (Data[6] & 0xF0) >> 4;
if (version != ddsVersionNumber) {
int displayWindowFlag = (Data[6] & 0x08) >> 3;
- displayHorizontalOffset = 0;
- displayVerticalOffset = 0;
- displayWidth = ((Data[7] << 8) | Data[8]) + 1;
- displayHeight = ((Data[9] << 8) | Data[10]) + 1;
+ windowHorizontalOffset = 0;
+ windowVerticalOffset = 0;
+ displayWidth = windowWidth = ((Data[7] << 8) | Data[8]) + 1;
+ displayHeight = windowHeight = ((Data[9] << 8) | Data[10]) + 1;
if (displayWindowFlag) {
- displayHorizontalOffset = (Data[11] << 8) | Data[12]; // displayWindowHorizontalPositionMinimum
- displayWidth = ((Data[13] << 8) | Data[14]) - displayHorizontalOffset + 1; // displayWindowHorizontalPositionMaximum
- displayVerticalOffset = (Data[15] << 8) | Data[16]; // displayWindowVerticalPositionMinimum
- displayHeight = ((Data[17] << 8) | Data[18]) - displayVerticalOffset + 1; // displayWindowVerticalPositionMaximum
+ windowHorizontalOffset = (Data[11] << 8) | Data[12]; // displayWindowHorizontalPositionMinimum
+ windowWidth = ((Data[13] << 8) | Data[14]) - windowHorizontalOffset + 1; // displayWindowHorizontalPositionMaximum
+ windowVerticalOffset = (Data[15] << 8) | Data[16]; // displayWindowVerticalPositionMinimum
+ windowHeight = ((Data[17] << 8) | Data[18]) - windowVerticalOffset + 1; // displayWindowVerticalPositionMaximum
}
+ SetOsdData();
SetupChanged();
ddsVersionNumber = version;
}
@@ -1049,7 +1079,7 @@ void cDvbSubtitleConverter::FinishPage(cDvbSubtitlePage *Page)
{
if (!AssertOsd())
return;
- tArea *Areas = Page->GetAreas();
+ tArea *Areas = Page->GetAreas(osdFactor);
int NumAreas = Page->regions.Count();
int Bpp = 8;
bool Reduced = false;
@@ -1086,7 +1116,7 @@ void cDvbSubtitleConverter::FinishPage(cDvbSubtitlePage *Page)
}
}
}
- cDvbSubtitleBitmaps *Bitmaps = new cDvbSubtitleBitmaps(Page->Pts(), Page->Timeout(), Areas, NumAreas);
+ cDvbSubtitleBitmaps *Bitmaps = new cDvbSubtitleBitmaps(Page->Pts(), Page->Timeout(), Areas, NumAreas, osdFactor);
bitmaps->Add(Bitmaps);
for (cSubtitleRegion *sr = Page->regions.First(); sr; sr = Page->regions.Next(sr)) {
int posX = sr->HorizontalAddress();
generated by cgit v1.2.3 (git 2.25.1) at 2025-02-24 08:42:28 +0000