mirror of
https://github.com/vdr-projects/vdr.git
synced 2025-03-01 10:50:46 +00:00
4c5de28883
- Added a sleep in cDvbPlayer::Action() in case there is no data to send to the device, which avoids a busy loop on very fast machines (thanks to Martin Wache). - Modified the description of cDevice::Poll() to avoid misunderstandings. - Updated Croatian language texts (thanks to Drazen Dupor). - cDvbPlayer::Goto() now appends a Sequence End Code to get the image shown immediately with softdevices (thanks to Reinhard Nissl). - Reactivated cVideoRepacker in remux.c after some fixes (thanks to Reinhard Nissl). - Removed the fix for handling VPS timers, so that they only record if the event they are assigned to actually has the given VPS time. This has caused repeating VPS timers to stop recording prematurely. - Avoiding duplicate components in EPG events when reading epg.data or in the PUTE SVDRP command (thanks to Olaf Titz for reporting this one). - Added the command line options '--lirc', '--rcu' and '--no-kbd' to allow setting the remote control at runtime (based on a patch by Darren Salt). - Now checking whether timers or channels are currently being edited via the menu before making changes through SVDRP (thanks to Andreas Brugger for reporting a problem with this). - Files and directories are now created with rights according to the shell's umask settings (thanks to Andreas Brachold). - Fixed the cChannel copy constructor (thanks to Marcel Wiesweg for pointing out a problem with it). - Fixed an out-of-bounds memory access with audio language ids (thanks to Matthias Lenk for reporting, and Udo Richter for suggesting a fix). - Updated the Finnish OSD texts (thanks to Rolf Ahrenberg). - Added missing storing of the MenuScrollPage parameter (thanks to Frank Krömmelbein). - Added cRemux::SetTimeouts() for better use of cRemux in a single thread (thanks to Udo Richter for reporting a problem with this). - Modified cEITScanner::Process() so that it uses the primary device if it is replaying and is the only device that provides the given transponder, and that a forced EPG scan works even if EPG scan timeout is set to 0 (thanks to Bernhard Stegmaier for reporting a problem with this). - Fixed cDvbSpuBitmap::putPixel() (thanks to Reinhard Nissl). - Fixed setting system time to avoid time jumps in case of faulty data (thanks to Andreas Böttger). - Fixed a memory leak in the SVDRP command LSTE (thanks to Stefan Huelswitt).
531 lines
13 KiB
C
531 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 1.15 2005/08/07 12:06:32 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 "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);
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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, (tColor) 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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if (size.x1 > size.x2 || size.y1 > size.y2)
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return false;
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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);
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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 ? 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_CHG_COLCON 0x07
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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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allowedShow = false;
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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, bool AllowedShow)
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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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allowedShow = AllowedShow;
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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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hlpsize.x1 = -1;
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hlpsize.y1 = -1;
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hlpsize.x2 = -1;
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hlpsize.y2 = -1;
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}
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sDvbSpuRect cDvbSpuDecoder::CalcAreaSize(sDvbSpuRect fgsize, cBitmap *fgbmp, sDvbSpuRect bgsize, cBitmap *bgbmp)
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{
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sDvbSpuRect size;
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if (fgbmp && bgbmp) {
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size.x1 = min(fgsize.x1, bgsize.x1);
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size.y1 = min(fgsize.y1, bgsize.y1);
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size.x2 = max(fgsize.x2, bgsize.x2);
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size.y2 = max(fgsize.y2, bgsize.y2);
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}
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else if (fgbmp) {
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size.x1 = fgsize.x1;
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size.y1 = fgsize.y1;
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size.x2 = fgsize.x2;
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size.y2 = fgsize.y2;
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}
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else if (bgbmp) {
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size.x1 = bgsize.x1;
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size.y1 = bgsize.y1;
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size.x2 = bgsize.x2;
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size.y2 = bgsize.y2;
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}
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else {
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size.x1 = 0;
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size.y1 = 0;
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size.x2 = 0;
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size.y2 = 0;
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}
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return size;
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}
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void cDvbSpuDecoder::Draw(void)
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{
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if (!spubmp) {
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Hide();
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return;
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}
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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 = hlpsize.y1;
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hlsize.x2 = hlpsize.x2;
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hlsize.y2 = 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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sDvbSpuRect areaSize = CalcAreaSize(hlsize, fg, bgsize, bg);
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if (!fg || !bg || !osd) {
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Hide();
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}
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if (bg || fg) {
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if (osd == NULL) {
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osd = cOsdProvider::NewOsd(0, 0);
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int x2 = areaSize.x2;
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while ((x2 - areaSize.x1 + 1) & 0x03)
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x2++;
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tArea Area = { areaSize.x1, areaSize.y1, x2, areaSize.y2, (fg && bg) ? 4 : 2 };
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osd->SetAreas(&Area, 1);
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}
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if (bg)
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osd->DrawBitmap(bgsize.x1, bgsize.y1, *bg);
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if (fg)
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osd->DrawBitmap(hlsize.x1, hlsize.y1, *fg);
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delete fg;
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delete 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);
|
|
size.y2 = ((spu[i + 5] & 0x0f) << 8) | spu[i + 6];
|
|
|
|
DEBUG("\t(%d, %d) x (%d, %d)\n",
|
|
size.x1, size.y1, size.x2, size.y2);
|
|
i += 7;
|
|
break;
|
|
|
|
case CMD_SPU_SET_PXD_OFFSET: // image 1 / image 2 offsets
|
|
fodd = spuU32(i + 1);
|
|
feven = spuU32(i + 3);
|
|
DEBUG("\todd = %d even = %d\n", fodd, feven);
|
|
i += 5;
|
|
break;
|
|
|
|
case CMD_SPU_CHG_COLCON: {
|
|
int size = spuU32(i + 1);
|
|
i += 1 + size;
|
|
}
|
|
break;
|
|
|
|
case CMD_SPU_MENU:
|
|
DEBUG("\tspu menu\n");
|
|
state = spMENU;
|
|
|
|
i++;
|
|
break;
|
|
|
|
default:
|
|
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 && allowedShow) || state == spMENU)
|
|
Draw();
|
|
|
|
if (state == spHIDE)
|
|
Hide();
|
|
|
|
if (pts == 0)
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|