mirror of
https://github.com/vdr-projects/vdr.git
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162ed534b0
- Updated the required driver version in INSTALL (thanks to Jens Groth for reporting this one). - Fixed missing channel info after an incomplete channel group switch (thanks to Andreas Trauer). - Fixed handling a channels.conf that contains a ":@nnn" line as its last entry (thanks to Ralf Klueber). - Fixed detecting the /dev/videoN devices for GRAB in case there are others before the DVB devices (thanks to Andreas Kool). - Updated 'channels.conf.terr' for Berlin (thanks to Markus Hardt). - Fixed handling rc key learning in case cRemote::Initialize() returns 'false' (thanks to Oliver Endriss). - Fixed initializing the highlight area in cDvbSpuDecoder (thanks to Sven Goethel). - Now trying to get a timer's channel without RID when loading 'timers.conf' (thanks to Thomas Rausch). - Removed the unused 0x73 (TOT) filter in eit.c (thanks to Andreas Trauer). - Fixed extracting the ES data in cDvbDevice::StillPicture() (thanks to Stefan Huelswitt). - Added MPEG1 handling to cDvbDevice::StillPicture() (thanks to Thomas Heiligenmann). - Changed the default "Lifetime" to 99, which means that recordings will never be deleted automatically in case the disk runs full (suggested by Oliver Endriss). Note that in an existing VDR installation the current value as set in 'setup.conf' will still be used - this change only affects new VDR installations. - Edited recordings will now never be deleted automatically if the disk runs full (suggested by Emil Naepflein). - Channel IDs are now checked when reading 'channels.conf' to avoid later problems with timers.
514 lines
13 KiB
C
514 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 1.5 2003/10/12 09:43:18 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 ? 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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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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int cDvbSpuDecoder::ScaleYcoord(int value)
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{
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if (scaleMode == eSpuLetterBox) {
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int offset = cDevice::PrimaryDevice()->GetVideoSystem() == vsPAL ? 72 : 60;
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return lround((value * 3.0) / 4.0) + offset;
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}
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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",
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spu[i]);
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assert(0);
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i++;
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break;
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}
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}
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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;
|
|
}
|