mirror of
https://github.com/vdr-projects/vdr.git
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d08073815d
- Fixed an incomplete initialization of the filter parameters in eit.c (thanks to Jeremy Hall). - Fixed the 'newplugin' script for use with the NEWSTRUCT driver (thanks to Andreas Schultz for reporting this one). If you have already created a plugin directory and Makefile with 'newplugin', please apply the following patch to it: ------------------------------------------------------- --- Makefile 2002/06/10 16:24:06 1.4 +++ Makefile 2002/09/17 15:36:36 1.5 @@ -15,7 +15,12 @@ ### The directory environment: +ifdef NEWSTRUCT +DVBDIR = ../../../../DVB/include +DEFINES += -DNEWSTRUCT +else DVBDIR = ../../../../DVB/ost/include +endif VDRDIR = ../../.. VDRINC = $(VDRDIR)/include LIBDIR = ../../lib @@ -34,7 +39,7 @@ INCLUDES = -I$(VDRINC) -I$(DVBDIR) -DEFINES = -DPLUGIN_NAME_I18N='"$(PLUGIN)"' +DEFINES += -DPLUGIN_NAME_I18N='"$(PLUGIN)"' ### The object files (add further files here): ------------------------------------------------------- This is the diff for the 'setup' example that comes with VDR, so your line numbers may be different. - Added a missing 'public' keyword in device.h (thanks to Martin Hammerschmid). - Fixed a race condition when starting 'Transfer Mode'. - Rearranged the remote control key handling to allow plugins to implement additional types of remote controls (see PLUGINS.html, section "Remote Control"). The previously used files 'keys.conf' and 'keys-pc.conf' have been replaced by the file 'remote.conf', which holds the key definitions of all remote controls. - The LIRC remote control keys are now handled just like the keyboard and RCU keys. This means that you can use the lircd.conf file as is for your remote control, without the need of editing it to make the key names the same as used in VDR. When first starting VDR it will go into the "Learning keys" mode and ask you to press the various keys. The resulting key assignment will be stored in the file 'remote.conf'. Since I have no way of testing the LIRC support, I hope I didn't break it in the process... - While learning the remote control keys it is now possible to press the 'Menu' key to skip the definition of keys that are not available on your particular RC unit. - Fixed handling DVD subtitles in the SPU decoder (thanks to Andreas Schultz). - Avoiding restarts due to 'panic level' when switching channels on the primary device during EPG scan.
508 lines
13 KiB
C
508 lines
13 KiB
C
/*
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* SPU decoder for DVB devices
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*
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* Copyright (C) 2001.2002 Andreas Schultz <aschultz@warp10.net>
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*
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* This code is distributed under the terms and conditions of the
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* GNU GENERAL PUBLIC LICENSE. See the file COPYING for details.
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*
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* parts of this file are derived from the OMS program.
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*
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* $Id: dvbspu.c 1.2 2002/09/29 13:48:39 kls Exp $
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*/
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#include <assert.h>
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#include <string.h>
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#include <inttypes.h>
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#include <math.h>
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#include "osd.h"
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#include "osdbase.h"
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#include "device.h"
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#include "dvbspu.h"
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/*
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* cDvbSpubitmap:
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*
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* this is a bitmap of the full screen and two palettes
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* the normal palette for the background and the highlight palette
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*
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* Inputs:
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* - a SPU rle encoded image on creation, which will be decoded into
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* the full screen indexed bitmap
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*
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* Output:
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* - a minimal sized cDvbSpuBitmap a given palette, the indexed bitmap
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* will be scanned to get the smallest possible resulting bitmap considering
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* transparencies
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*/
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// #define SPUDEBUG
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#ifdef SPUDEBUG
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#define DEBUG(format, args...) printf (format, ## args)
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#else
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#define DEBUG(format, args...)
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#endif
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// --- cDvbSpuPalette----------------------------------
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void cDvbSpuPalette::setPalette(const uint32_t * pal)
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{
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for (int i = 0; i < 16; i++)
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palette[i] = yuv2rgb(pal[i]);
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}
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// --- cDvbSpuBitmap --------------------------------------------
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#define setMin(a, b) if (a > b) a = b
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#define setMax(a, b) if (a < b) a = b
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#define spuXres 720
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#define spuYres 576
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#define revRect(r1, r2) { r1.x1 = r2.x2; r1.y1 = r2.y2; r1.x2 = r2.x1; r1.y2 = r2.y1; }
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cDvbSpuBitmap::cDvbSpuBitmap(sDvbSpuRect size,
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uint8_t * fodd, uint8_t * eodd,
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uint8_t * feven, uint8_t * eeven)
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{
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if (size.x1 < 0 || size.y1 < 0 || size.x2 >= spuXres
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|| size.y2 >= spuYres)
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throw;
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bmpsize = size;
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revRect(minsize[0], size);
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revRect(minsize[1], size);
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revRect(minsize[2], size);
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revRect(minsize[3], size);
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if (!(bmp = new uint8_t[spuXres * spuYres * sizeof(uint8_t)]))
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throw;
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memset(bmp, 0, spuXres * spuYres * sizeof(uint8_t));
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putFieldData(0, fodd, eodd);
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putFieldData(1, feven, eeven);
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}
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cDvbSpuBitmap::~cDvbSpuBitmap()
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{
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delete[]bmp;
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}
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cBitmap *cDvbSpuBitmap::getBitmap(const aDvbSpuPalDescr paldescr,
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const cDvbSpuPalette & pal,
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sDvbSpuRect & size) const
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{
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int h = size.height();
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int w = size.width();
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if (size.y1 + h >= spuYres)
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h = spuYres - size.y1 - 1;
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if (size.x1 + w >= spuXres)
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w = spuXres - size.x1 - 1;
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if (w & 0x03)
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w += 4 - (w & 0x03);
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cBitmap *ret = new cBitmap(w, h, 2, true);
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// set the palette
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for (int i = 0; i < 4; i++) {
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uint32_t color =
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pal.getColor(paldescr[i].index, paldescr[i].trans);
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ret->SetColor(i, (eDvbColor) color);
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}
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// set the content
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for (int yp = 0; yp < h; yp++) {
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for (int xp = 0; xp < w; xp++) {
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uint8_t idx = bmp[(size.y1 + yp) * spuXres + size.x1 + xp];
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ret->SetIndex(xp, yp, idx);
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}
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}
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return ret;
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}
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// find the minimum non-transparent area
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bool cDvbSpuBitmap::getMinSize(const aDvbSpuPalDescr paldescr,
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sDvbSpuRect & size) const
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{
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bool ret = false;
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for (int i = 0; i < 4; i++) {
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if (paldescr[i].trans != 0) {
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if (!ret)
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size = minsize[i];
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else {
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setMin(size.x1, minsize[i].x1);
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setMin(size.y1, minsize[i].y1);
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setMax(size.x2, minsize[i].x2);
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setMax(size.y2, minsize[i].y2);
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}
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ret = true;
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}
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}
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if (ret)
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DEBUG("MinSize: (%d, %d) x (%d, %d)\n",
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size.x1, size.y1, size.x2, size.y2);
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return ret;
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}
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void cDvbSpuBitmap::putPixel(int xp, int yp, int len, uint8_t colorid)
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{
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memset(bmp + spuXres * yp + xp, colorid, len);
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setMin(minsize[colorid].x1, xp);
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setMin(minsize[colorid].y1, yp);
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setMax(minsize[colorid].x2, xp + len - 1);
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setMax(minsize[colorid].y2, yp + len - 1);
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}
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static uint8_t getBits(uint8_t * &data, uint8_t & bitf)
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{
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uint8_t ret = *data;
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if (bitf)
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ret >>= 4;
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else
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data++;
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bitf ^= 1;
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return (ret & 0xf);
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}
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void cDvbSpuBitmap::putFieldData(int field, uint8_t * data, uint8_t * endp)
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{
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int xp = bmpsize.x1;
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int yp = bmpsize.y1 + field;
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uint8_t bitf = 1;
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while (data < endp) {
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uint16_t vlc = getBits(data, bitf);
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if (vlc < 0x0004) {
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vlc = (vlc << 4) | getBits(data, bitf);
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if (vlc < 0x0010) {
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vlc = (vlc << 4) | getBits(data, bitf);
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if (vlc < 0x0040) {
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vlc = (vlc << 4) | getBits(data, bitf);
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}
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}
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}
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uint8_t color = vlc & 0x03;
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int len = vlc >> 2;
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// if len == 0 -> end sequence - fill to end of line
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len = len ? : bmpsize.x2 - xp + 1;
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putPixel(xp, yp, len, color);
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xp += len;
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if (xp > bmpsize.x2) {
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// nextLine
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if (!bitf)
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data++;
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bitf = 1;
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xp = bmpsize.x1;
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yp += 2;
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if (yp > bmpsize.y2)
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return;
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}
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}
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}
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// --- cDvbSpuDecoder-----------------------------
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#define CMD_SPU_MENU 0x00
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#define CMD_SPU_SHOW 0x01
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#define CMD_SPU_HIDE 0x02
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#define CMD_SPU_SET_PALETTE 0x03
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#define CMD_SPU_SET_ALPHA 0x04
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#define CMD_SPU_SET_SIZE 0x05
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#define CMD_SPU_SET_PXD_OFFSET 0x06
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#define CMD_SPU_EOF 0xff
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#define spuU32(i) ((spu[i] << 8) + spu[i+1])
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cDvbSpuDecoder::cDvbSpuDecoder()
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{
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clean = true;
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scaleMode = eSpuNormal;
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spu = NULL;
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osd = NULL;
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spubmp = NULL;
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}
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cDvbSpuDecoder::~cDvbSpuDecoder()
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{
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delete spubmp;
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delete spu;
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delete osd;
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}
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void cDvbSpuDecoder::processSPU(uint32_t pts, uint8_t * buf)
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{
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setTime(pts);
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DEBUG("SPU pushData: pts: %d\n", pts);
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delete spubmp;
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spubmp = NULL;
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delete[]spu;
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spu = buf;
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spupts = pts;
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DCSQ_offset = cmdOffs();
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prev_DCSQ_offset = 0;
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clean = true;
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}
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void cDvbSpuDecoder::setScaleMode(cSpuDecoder::eScaleMode ScaleMode)
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{
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scaleMode = ScaleMode;
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}
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void cDvbSpuDecoder::setPalette(uint32_t * pal)
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{
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palette.setPalette(pal);
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}
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void cDvbSpuDecoder::setHighlight(uint16_t sx, uint16_t sy,
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uint16_t ex, uint16_t ey,
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uint32_t palette)
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{
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aDvbSpuPalDescr pld;
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for (int i = 0; i < 4; i++) {
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pld[i].index = 0xf & (palette >> (16 + 4 * i));
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pld[i].trans = 0xf & (palette >> (4 * i));
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}
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bool ne = hlpsize.x1 != sx || hlpsize.y1 != sy ||
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hlpsize.x2 != ex || hlpsize.y2 != ey ||
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pld[0] != hlpDescr[0] || pld[1] != hlpDescr[1] ||
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pld[2] != hlpDescr[2] || pld[3] != hlpDescr[3];
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if (ne) {
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DEBUG("setHighlight: %d,%d x %d,%d\n", sx, sy, ex, ey);
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hlpsize.x1 = sx;
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hlpsize.y1 = sy;
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hlpsize.x2 = ex;
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hlpsize.y2 = ey;
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memcpy(hlpDescr, pld, sizeof(aDvbSpuPalDescr));
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highlight = true;
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clean = false;
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}
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}
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void cDvbSpuDecoder::clearHighlight(void)
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{
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clean &= !highlight;
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highlight = false;
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}
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int cDvbSpuDecoder::ScaleYcoord(int value)
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{
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if (scaleMode == eSpuLetterBox)
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return lround((value * 3.0) / 4.0 + 72.0);
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else
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return value;
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}
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int cDvbSpuDecoder::ScaleYres(int value)
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{
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if (scaleMode == eSpuLetterBox)
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return lround((value * 3.0) / 4.0);
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else
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return value;
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}
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void cDvbSpuDecoder::DrawBmp(sDvbSpuRect & size, cBitmap * bmp)
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{
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osd->Create(size.x1, size.y1, size.width(), size.height(), 2, false);
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osd->SetBitmap(size.x1, size.y1, *bmp);
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delete bmp;
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}
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void cDvbSpuDecoder::Draw(void)
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{
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Hide();
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if (!spubmp)
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return;
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cBitmap *fg = NULL;
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cBitmap *bg = NULL;
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sDvbSpuRect bgsize;
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sDvbSpuRect hlsize;
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hlsize.x1 = hlpsize.x1;
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hlsize.y1 = ScaleYcoord(hlpsize.y1);
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hlsize.x2 = hlpsize.x2;
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hlsize.y2 = ScaleYcoord(hlpsize.y2);
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if (highlight)
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fg = spubmp->getBitmap(hlpDescr, palette, hlsize);
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if (spubmp->getMinSize(palDescr, bgsize)) {
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bg = spubmp->getBitmap(palDescr, palette, bgsize);
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if (scaleMode == eSpuLetterBox) {
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// the coordinates have to be modified for letterbox
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int y1 = ScaleYres(bgsize.y1) + bgsize.height();
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bgsize.y2 = y1 + bgsize.height();
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bgsize.y1 = y1;
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}
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}
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if (bg || fg) {
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if (osd == NULL)
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if ((osd = cOsd::OpenRaw(0, 0)) == NULL) {
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dsyslog("OpenRaw failed\n");
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return;
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}
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if (fg)
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DrawBmp(hlsize, fg);
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if (bg)
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DrawBmp(bgsize, bg);
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osd->Flush();
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}
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clean = true;
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}
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void cDvbSpuDecoder::Hide(void)
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{
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delete osd;
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osd = NULL;
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}
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void cDvbSpuDecoder::Empty(void)
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{
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Hide();
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delete spubmp;
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spubmp = NULL;
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delete[]spu;
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spu = NULL;
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clearHighlight();
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clean = true;
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}
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int cDvbSpuDecoder::setTime(uint32_t pts)
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{
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if (!spu)
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return 0;
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if (spu && !clean)
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Draw();
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while (DCSQ_offset != prev_DCSQ_offset) { /* Display Control Sequences */
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int i = DCSQ_offset;
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state = spNONE;
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uint32_t exec_time = spupts + spuU32(i) * 1024;
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if ((pts != 0) && (exec_time > pts))
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return 0;
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DEBUG("offs = %d, rel = %d, time = %d, pts = %d, diff = %d\n",
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i, spuU32(i) * 1024, exec_time, pts, exec_time - pts);
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if (pts != 0) {
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uint16_t feven = 0;
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uint16_t fodd = 0;
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i += 2;
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prev_DCSQ_offset = DCSQ_offset;
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DCSQ_offset = spuU32(i);
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DEBUG("offs = %d, DCSQ = %d, prev_DCSQ = %d\n",
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i, DCSQ_offset, prev_DCSQ_offset);
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i += 2;
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while (spu[i] != CMD_SPU_EOF) { // Command Sequence
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switch (spu[i]) {
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case CMD_SPU_SHOW: // show subpicture
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DEBUG("\tshow subpicture\n");
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state = spSHOW;
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i++;
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break;
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case CMD_SPU_HIDE: // hide subpicture
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DEBUG("\thide subpicture\n");
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state = spHIDE;
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i++;
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break;
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case CMD_SPU_SET_PALETTE: // CLUT
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palDescr[0].index = spu[i + 2] & 0xf;
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palDescr[1].index = spu[i + 2] >> 4;
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palDescr[2].index = spu[i + 1] & 0xf;
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palDescr[3].index = spu[i + 1] >> 4;
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i += 3;
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break;
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case CMD_SPU_SET_ALPHA: // transparency palette
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palDescr[0].trans = spu[i + 2] & 0xf;
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palDescr[1].trans = spu[i + 2] >> 4;
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palDescr[2].trans = spu[i + 1] & 0xf;
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palDescr[3].trans = spu[i + 1] >> 4;
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i += 3;
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break;
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case CMD_SPU_SET_SIZE: // image coordinates
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size.x1 = (spu[i + 1] << 4) | (spu[i + 2] >> 4);
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size.x2 = ((spu[i + 2] & 0x0f) << 8) | spu[i + 3];
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size.y1 = (spu[i + 4] << 4) | (spu[i + 5] >> 4);
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size.y2 = ((spu[i + 5] & 0x0f) << 8) | spu[i + 6];
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DEBUG("\t(%d, %d) x (%d, %d)\n",
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size.x1, size.y1, size.x2, size.y2);
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i += 7;
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break;
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case CMD_SPU_SET_PXD_OFFSET: // image 1 / image 2 offsets
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fodd = spuU32(i + 1);
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feven = spuU32(i + 3);
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DEBUG("\todd = %d even = %d\n", fodd, feven);
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i += 5;
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break;
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case CMD_SPU_MENU:
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DEBUG("\tspu menu\n");
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state = spMENU;
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i++;
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break;
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default:
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esyslog("invalid sequence in control header (%.2x)\n",
|
|
spu[i]);
|
|
assert(0);
|
|
i++;
|
|
break;
|
|
}
|
|
}
|
|
if (fodd != 0 && feven != 0) {
|
|
delete spubmp;
|
|
spubmp = new cDvbSpuBitmap(size, spu + fodd, spu + feven,
|
|
spu + feven, spu + cmdOffs());
|
|
}
|
|
} else if (!clean)
|
|
state = spSHOW;
|
|
|
|
if (state == spSHOW || state == spMENU)
|
|
Draw();
|
|
|
|
if (state == spHIDE)
|
|
Hide();
|
|
|
|
if (pts == 0)
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|