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Added the 'pictures' plugin

This commit is contained in:
Klaus Schmidinger 2008-01-13 11:44:38 +01:00
parent 0ec2063b5a
commit d607265f69
13 changed files with 1543 additions and 0 deletions
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340
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VDR Plugin 'pictures' Revision History
--------------------------------------
2008-01-13: Version 0.0.1
- Initial revision.

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#
# Makefile for a Video Disk Recorder plugin
#
# $Id: Makefile 1.1 2008/01/13 11:29:27 kls Exp $
# The official name of this plugin.
# This name will be used in the '-P...' option of VDR to load the plugin.
# By default the main source file also carries this name.
# IMPORTANT: the presence of this macro is important for the Make.config
# file. So it must be defined, even if it is not used here!
#
PLUGIN = pictures
### The version number of this plugin (taken from the main source file):
VERSION = $(shell grep 'static const char \*VERSION *=' $(PLUGIN).c | awk '{ print $$6 }' | sed -e 's/[";]//g')
### The C++ compiler and options:
CXX ?= g++
CXXFLAGS ?= -fPIC -g -O2 -Wall -Woverloaded-virtual
### The directory environment:
VDRDIR = ../../..
LIBDIR = ../../lib
TMPDIR = /tmp
### Allow user defined options to overwrite defaults:
-include $(VDRDIR)/Make.config
### The version number of VDR's plugin API (taken from VDR's "config.h"):
APIVERSION = $(shell sed -ne '/define APIVERSION/s/^.*"\(.*\)".*$$/\1/p' $(VDRDIR)/config.h)
### The name of the distribution archive:
ARCHIVE = $(PLUGIN)-$(VERSION)
PACKAGE = vdr-$(ARCHIVE)
### Includes and Defines (add further entries here):
INCLUDES += -I$(VDRDIR)/include
DEFINES += -D_GNU_SOURCE -DPLUGIN_NAME_I18N='"$(PLUGIN)"'
### The object files (add further files here):
OBJS = $(PLUGIN).o entry.o menu.o player.o
### The main target:
all: libvdr-$(PLUGIN).so i18n
### Implicit rules:
%.o: %.c
$(CXX) $(CXXFLAGS) -c $(DEFINES) $(INCLUDES) $<
### Dependencies:
MAKEDEP = $(CXX) -MM -MG
DEPFILE = .dependencies
$(DEPFILE): Makefile
@$(MAKEDEP) $(DEFINES) $(INCLUDES) $(OBJS:%.o=%.c) > $@
-include $(DEPFILE)
### Internationalization (I18N):
PODIR = po
LOCALEDIR = $(VDRDIR)/locale
I18Npo = $(wildcard $(PODIR)/*.po)
I18Nmsgs = $(addprefix $(LOCALEDIR)/, $(addsuffix /LC_MESSAGES/vdr-$(PLUGIN).mo, $(notdir $(foreach file, $(I18Npo), $(basename $(file))))))
I18Npot = $(PODIR)/$(PLUGIN).pot
%.mo: %.po
msgfmt -c -o $@ $<
$(I18Npot): $(wildcard *.c)
xgettext -C -cTRANSLATORS --no-wrap --no-location -k -ktr -ktrNOOP --msgid-bugs-address='<vdr-bugs@cadsoft.de>' -o $@ $^
%.po: $(I18Npot)
msgmerge -U --no-wrap --no-location --backup=none -q $@ $<
@touch $@
$(I18Nmsgs): $(LOCALEDIR)/%/LC_MESSAGES/vdr-$(PLUGIN).mo: $(PODIR)/%.mo
@mkdir -p $(dir $@)
cp $< $@
.PHONY: i18n
i18n: $(I18Nmsgs) $(I18Npot)
### Targets:
libvdr-$(PLUGIN).so: $(OBJS)
$(CXX) $(CXXFLAGS) -shared $(OBJS) -o $@
@cp --remove-destination $@ $(LIBDIR)/$@.$(APIVERSION)
dist: clean
@-rm -rf $(TMPDIR)/$(ARCHIVE)
@mkdir $(TMPDIR)/$(ARCHIVE)
@cp -a * $(TMPDIR)/$(ARCHIVE)
@tar czf $(PACKAGE).tgz -C $(TMPDIR) $(ARCHIVE)
@-rm -rf $(TMPDIR)/$(ARCHIVE)
@echo Distribution package created as $(PACKAGE).tgz
clean:
@-rm -f $(OBJS) $(DEPFILE) *.so *.tgz core* *~ $(PODIR)/*.mo $(PODIR)/*.pot

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This is a "plugin" for the Video Disk Recorder (VDR).
Written by: Klaus Schmidinger <kls@cadsoft.de>
Project's homepage: www.cadsoft.de/vdr
Latest version available at: www.cadsoft.de/vdr
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
See the file COPYING for more information.
Description:
============
The 'pictures' plugin implements a simple picture viewer.
There is already an 'image' plugin out there which has a lot more
functionality than this one, but it's way too complex for my taste,
and also converts the image files on-the-fly, which makes it slow
on slow hardware.
This plugin assumes that the pictures have already been converted to
MPEG frames (with the 'pic2mpg' script that comes with this archive),
and doesn't implement any fancy features like zooming, panning or
tiled previews. It's just a very simple viewer.
It also assumes a rather particular directory structure (see below),
which I have found to fit well for my needs. If you use a different
structure, the plugin should still work, but the information displayed
in the caption may not be as expected.
Remote control key functions while in the Pictures menu:
========================================================
- Left/right/Up/Down: navigate in the menu as usual.
- Ok: opens a directory or displays the selected
picture.
- Red/Play: start a slide show at the first picture in the
selected directory (or at the selected picture).
Remote control key functions while displaying pictures:
=======================================================
- Left/Right: advances to the previous/next picture. At the end of a directory
it automatically advances to the first picture of the next
directory and displays the caption.
- Up/Play: start the slide show.
- Down/Pause: stop the slide show.
- Blue/Stop: exit from the picture viewer.
- Green/Prev: skip to the first picture in the previous directory.
- Yellow/Next: skip to the first picture in the next directory.
- Ok: toggle the caption display.
- Back: return to the picture selection menu.
The slide show starts with the picture immediately following the one that
is currently visible, and continues until the last available picture,
automatically crossing directories as necessary.
Pressing any of the Left/Right, Green/Prev, Yellow/Next or Back keys
automatically stops an ongoing slide show.
Directory structure:
====================
The 'pictures' plugin requires a particular directory structure in order to
work properly. Starting at some base directory (e.g. "/path/to/pictures"),
there is one directory level marking the year in which the pictures were
taken, followed by a level with a properly sortable combination of month
and description, and finally the plain picture files, as in
/path/to/pictures/YEAR/MONTH_DESCRIPTION/*.jpg
For example
/path/to/pictures/2007/06a_Vacation_in_Colorado/dsc01234.jpg
/path/to/pictures/2007/06a_Vacation_in_Colorado/dsc01235.jpg
/path/to/pictures/2007/06b_Our_cat/dsc01236.jpg
The MONTH is "01" for January through "12" for December. If there is more
than one entry for one month, it should be followed by a letter to make them
sort correctly. Note that this is just a suggestion on how to make the
directories sort in the correct chronological order. Instead of the two digit
month number, optionally followed by a letter, you can use anything else you
like. There must be an underscore between the MONTH and the DESCRIPTION part,
and any underscores within the DESCRIPTION will be converted to blanks when
displaying the description (this is done so that blanks can be avoided in
the directory names).
Preparing the files:
====================
In order to display the pictures as "still pictures" on the DVB device, they
need to be converted into MPEG frames. This procedure takes some time, and
would make viewing pictures sluggish, especially on slow hardware. Therefore
the script "pic2mpg" must be used to convert all picture files before
using this plugin, as in
pic2mpg /path/to/pictures /path/to/pictures.MPG
This will recursively walk through all pictures in the source directory and
convert them into MPEG frames, stored in the destination directory. The
extension ".MPG" is just a suggestion, you can name the directory anything
you like, and it doesn't have to start with the same path as the source
directory. Just don't make the destination directory a subdirectory of
the source directory, because this would surely lead to problems.
See "pic2mpg -h" for a list of available options.
The pic2mpg conversion can be run any time, even if converted pictures
already exist. It will only convert pictures that haven't been converted
yet. Any changes to the source directory will be reflected in the destination
directory accordingly after pic2mpg has finished (note that this especially
means that any files or directories in the destination tree that have no
corresponding entry in the source tree will be deleted!). So you can run
pic2mpg, for instance, after copying new pictures into your picture
directory, or after making any other kind of changes to your existing
pictures. It might even be a good idea to run pic2mpg in a (nightly)
cron job.

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/*
* entry.c: Data structure to handle still pictures
*
* See the README file for copyright information and how to reach the author.
*
* $Id: entry.c 1.1 2008/01/13 11:29:27 kls Exp $
*/
#include "entry.h"
cPictureEntry::cPictureEntry(const char *Name, const cPictureEntry *Parent, bool IsDirectory)
{
name = strdup(Name);
parent = Parent;
isDirectory = IsDirectory;
entries = NULL;
}
cPictureEntry::~cPictureEntry()
{
free(name);
delete entries;
}
int cPictureEntry::Compare(const cListObject &ListObject) const
{
cPictureEntry *p = (cPictureEntry *)&ListObject;
if (IsDirectory() && !p->IsDirectory())
return -1;
if (!IsDirectory() && p->IsDirectory())
return +1;
if (IsDirectory())
return strcoll(name, p->name);
else
return strcmp(name, p->name); // correctly sorts dsc01234.jpg and dsc01234a.jpg in case pictures have been "squeezed in"
}
cString cPictureEntry::Path(void) const
{
return parent ? AddDirectory(parent->Path(), name) : name;
}
void cPictureEntry::Load(void) const
{
if (isDirectory && !entries) {
cString Directory = Path();
cReadDir d(Directory);
if (d.Ok()) {
struct dirent *e;
while ((e = d.Next()) != NULL) {
if (strcmp(e->d_name, ".") && strcmp(e->d_name, "..")) {
struct stat ds;
if (stat(AddDirectory(Directory, e->d_name), &ds) == 0) {
if (!entries)
entries = new cList<cPictureEntry>;
entries->Add(new cPictureEntry(e->d_name, this, S_ISDIR(ds.st_mode)));
}
}
}
if (entries)
entries->Sort();
}
else
LOG_ERROR_STR(*Directory);
}
}
const cList<cPictureEntry> *cPictureEntry::Entries(void) const
{
Load();
return entries;
}
const cPictureEntry *cPictureEntry::FirstPicture(void) const
{
Load();
if (entries) {
for (cPictureEntry *pe = entries->First(); pe; pe = entries->Next(pe)) {
if (pe->IsDirectory()) {
const cPictureEntry *p = pe->FirstPicture();
if (p)
return p;
}
else
return pe;
}
}
return NULL;
}
const cPictureEntry *cPictureEntry::LastPicture(void) const
{
Load();
if (entries) {
for (cPictureEntry *pe = entries->Last(); pe; pe = entries->Prev(pe)) {
if (pe->IsDirectory()) {
const cPictureEntry *p = pe->LastPicture();
if (p)
return p;
}
else
return pe;
}
}
return NULL;
}
const cPictureEntry *cPictureEntry::PrevPicture(const cPictureEntry *This) const
{
if (This) {
const cPictureEntry *pe = (cPictureEntry *)entries->Prev(This);
if (pe) {
if (pe->IsDirectory()) {
const cPictureEntry *p = pe->LastPicture();
if (p)
return p;
return PrevPicture(pe);
}
return pe;
}
}
if (parent)
return parent->PrevPicture(this);
return NULL;
}
const cPictureEntry *cPictureEntry::NextPicture(const cPictureEntry *This) const
{
if (This) {
cPictureEntry *pe = (cPictureEntry *)entries->Next(This);
if (pe) {
if (pe->IsDirectory()) {
const cPictureEntry *p = pe->FirstPicture();
if (p)
return p;
return NextPicture(pe);
}
return pe;
}
}
if (parent)
return parent->NextPicture(this);
return NULL;
}

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/*
* entry.h: Data structure to handle still pictures
*
* See the README file for copyright information and how to reach the author.
*
* $Id: entry.h 1.1 2008/01/13 11:29:27 kls Exp $
*/
#ifndef _ENTRY_H
#define _ENTRY_H
#include <vdr/tools.h>
class cPictureEntry : public cListObject {
private:
char *name;
const cPictureEntry *parent;
bool isDirectory;
mutable cList<cPictureEntry> *entries;
void Load(void) const;
public:
cPictureEntry(const char *Name, const cPictureEntry *Parent, bool IsDirectory);
virtual ~cPictureEntry();
virtual int Compare(const cListObject &ListObject) const;
const char *Name(void) const { return name; }
const cPictureEntry *Parent(void) const { return parent; }
bool IsDirectory(void) const { return isDirectory; }
cString Path(void) const;
const cList<cPictureEntry> *Entries(void) const;
const cPictureEntry *FirstPicture(void) const;
const cPictureEntry *LastPicture(void) const;
const cPictureEntry *PrevPicture(const cPictureEntry *This = NULL) const;
const cPictureEntry *NextPicture(const cPictureEntry *This = NULL) const;
};
#endif //_ENTRY_H

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/*
* menu.c: A menu for still pictures
*
* See the README file for copyright information and how to reach the author.
*
* $Id: menu.c 1.1 2008/01/13 11:35:18 kls Exp $
*/
#include "menu.h"
#include <vdr/tools.h>
#include "entry.h"
#include "player.h"
char PictureDirectory[PATH_MAX] = "";
static bool PathStartsWith(const char *Path, const char *Name)
{
if (Path && Name) {
while (*Name) {
if (*Path++ != *Name++)
return false;
}
if (*Path && *Path != '/')
return false;
return true;
}
return false;
}
static const char *NextLevel(const char *Path)
{
if (Path) {
const char *p = strchr(Path, '/');
return p ? p + 1 : NULL;
}
return Path;
}
cPictureEntry *cPictureMenu::pictures = NULL;
cPictureMenu::cPictureMenu(const cPictureEntry *PictureEntry, const char *Path)
:cOsdMenu(tr("Pictures"))
{
pictureEntry = PictureEntry;
if (!pictureEntry)
pictureEntry = pictures = new cPictureEntry(PictureDirectory, NULL, true);
if (pictureEntry->Parent()) {
if (!pictureEntry->Parent()->Parent())
SetTitle(pictureEntry->Name()); // Year
else
SetTitle(cString::sprintf("%s: %s", pictureEntry->Parent()->Name(), *HandleUnderscores(pictureEntry->Name()))); // Year/Description
}
Set(Path);
}
cPictureMenu::~cPictureMenu()
{
if (pictures && pictureEntry && !pictureEntry->Parent())
DELETENULL(pictures);
}
void cPictureMenu::Set(const char *Path)
{
Clear();
const cList<cPictureEntry> *l = pictureEntry->Entries();
if (l) {
for (const cPictureEntry *e = l->First(); e; e = l->Next(e)) {
cString Name = HandleUnderscores(e->Name());
if (!e->IsDirectory())
Name.Truncate(-4); // don't display the ".mpg" extension
Add(new cOsdItem(HandleUnderscores(Name)), PathStartsWith(Path, e->Name()));
}
}
SetHelp(Count() ? trVDR("Button$Play") : NULL, NULL, NULL, cPictureControl::Active() ? trVDR("Button$Stop") : NULL);
if (Current() >= 0) {
const char *p = NextLevel(Path);
if (p)
SelectItem(p);
}
}
eOSState cPictureMenu::SelectItem(const char *Path, bool SlideShow)
{
cOsdItem *Item = Get(Current());
if (Item) {
const cList<cPictureEntry> *l = pictureEntry->Entries();
if (l) {
cPictureEntry *pe = l->Get(Current());
if (pe) {
if (SlideShow) {
cControl::Launch(new cPictureControl(pictures, pe, true));
pictures = NULL; // cPictureControl takes ownership
return osEnd;
}
if (pe->IsDirectory())
return AddSubMenu(new cPictureMenu(pe, Path));
else if (!Path) {
cControl::Launch(new cPictureControl(pictures, pe));
pictures = NULL; // cPictureControl takes ownership
return osEnd;
}
}
}
}
return osContinue;
}
eOSState cPictureMenu::ProcessKey(eKeys Key)
{
eOSState state = cOsdMenu::ProcessKey(Key);
if (state == osUnknown) {
switch (Key) {
case kRed:
case kPlay: return SelectItem(NULL, true);
case kBlue:
case kStop: if (cPictureControl::Active())
return osStopReplay;
break;
case kOk: return SelectItem();
default: break;
}
}
return state;
}
cPictureMenu *cPictureMenu::CreatePictureMenu(void)
{
return new cPictureMenu(NULL, cPictureControl::LastDisplayed());
}

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/*
* menu.h: A menu for still pictures
*
* See the README file for copyright information and how to reach the author.
*
* $Id: menu.h 1.1 2008/01/13 11:32:52 kls Exp $
*/
#ifndef _MENU_H
#define _MENU_H
#include <vdr/osdbase.h>
#include <vdr/tools.h>
#include "entry.h"
extern char PictureDirectory[PATH_MAX];
class cPictureMenu : public cOsdMenu {
private:
static cPictureEntry *pictures;
const cPictureEntry *pictureEntry;
void Set(const char *Path);
eOSState SelectItem(const char *Path = NULL, bool SlideShow = false);
public:
cPictureMenu(const cPictureEntry *PictureEntry, const char *Path = NULL);
~cPictureMenu();
virtual eOSState ProcessKey(eKeys Key);
static cPictureMenu *CreatePictureMenu(void);
};
#endif //_MENU_H

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#!/usr/bin/perl
# pic2mpg: Convert picture files to MPEG still frames
#
# Converts either a single picture file or all files in a
# given directory (recursively) to MPEG still frames.
#
# See the README file for copyright information and how to reach the author.
#
# $Id: pic2mpg 1.1 2008/01/13 11:39:12 kls Exp $
## TODO implement HDTV (1920 x 1080)
use File::Path;
use Getopt::Std;
use Image::Size;
$Usage = qq{
Usage: $0 [options] picture-dir mpeg-dir
$0 [options] picture-file mpeg-file
Options: -a Aspect ratio 4:3 (default is 16:9)
-h print Help
-f Force conversion
-n NTSC (default is PAL)
-v num Verbose (0=none, 1=list files, 2=detailed)
-x percent X overscan in percent
-y percent Y overscan in percent
};
getopts("ahfnv:x:y:") || die $Usage;
die $Usage if $opt_h;
$Aspect = $opt_a;
$Force = $opt_f;
$NTSC = $opt_n;
$Verbose = $opt_v;
$OverscanX = $opt_x;
$OverscanY = $opt_y;
$ListFiles = $Verbose >= 1;
$Detailed = $Verbose >= 2;
# Screen size:
$SW = $NTSC ? 720 : 720;
$SH = $NTSC ? 480 : 576;
$ScreenRatio = $Aspect ? 4 / 3 : 16 / 9;
# Converter programs:
%PNMCONV = (
bmp => "bmptopnm",
gif => "giftopnm",
jpeg => "jpegtopnm",
jpg => "jpegtopnm",
png => "pngtopnm",
pnm => "cat",
tif => "tifftopnm",
tiff => "tifftopnm",
);
# Command options:
die "$0: missing parameter\n" unless $ARGV[0] && $ARGV[1];
die "$0: file or directory not found: $ARGV[0]\n" unless -e $ARGV[0];
die "$0: source and destination must be different\n" if $ARGV[0] eq $ARGV[1];
$verbose1 = $Detailed ? "--verbose" : "";
$verbose2 = $Detailed ? "-v 2" : "-v 0";
$system1 = $NTSC ? "" : "--pal";
$system2 = $NTSC ? "n" : "p";
$framerate = $NTSC ? "30000:1001" : "25:1";
$aspect = $Aspect ? "2" : "3";
# Convert a single file:
if (-f $ARGV[0]) {
die "$0: mixed file and directory ('$ARGV[0]' <-> '$ARGV[1]')\n" unless !-e $ARGV[1] || -f $ARGV[1];
ConvertFile($ARGV[0], $ARGV[1]);
exit;
}
die "$0: mixed directory and file ('$ARGV[0]' <-> '$ARGV[1]')\n" unless !-e $ARGV[1] || -d $ARGV[1];
$PICDIR = $ARGV[0];
$MPGDIR = $ARGV[1];
# Convert pictures to mpegs:
chdir($PICDIR) || die "$PICDIR: $!\n";
@Pictures = `find -type f`;
chomp(@Pictures);
for $pic (@Pictures) {
my $mpg = "$MPGDIR/$pic.mpg";
if ($Force || !-e $mpg || -M $mpg > -M $pic) {
(my $dir = $mpg) =~ s/\/[^\/]*$//;
mkpath($dir);
ConvertFile($pic, $mpg);
}
}
# Remove mpegs without pictures:
chdir($MPGDIR) || die "$MPGDIR: $!\n";
@Mpegs = `find -type f`;
chomp(@Mpegs);
for $mpg (@Mpegs) {
my $pic = "$PICDIR/$mpg";
$pic =~ s/\.mpg$//;
if (!-e $pic) {
print "removing $mpg\n";
unlink($mpg);
}
}
# Remove empty directories:
chdir($MPGDIR) || die "$MPGDIR: $!\n";
for ($i = 0; $i < 10; $i++) { # dirs might become empty when removing empty subdirs
@Dirs = `find -type d -empty`;
chomp(@Dirs);
last unless @Dirs;
for $dir (@Dirs) {
$dir = EscapeMeta($dir);
print "removing $dir\n";
!system("rm -rf $dir") || die "$dir: $!\n";
}
}
# Actual file conversion:
sub ConvertFile
{
my ($Pict, $Mpeg) = @_;
(my $Type) = $Pict =~ /\.([^\.]*)$/;
die "unknown file type '$Type': '$Pict'\n" unless defined $PNMCONV{$Type};
my ($w, $h) = imgsize($Pict);
print "image size is $w x $h\n" if ($Detailed);
if ($w / $h <= $ScreenRatio) {
$w = $h * $ScreenRatio;
}
else {
$h = $w / $ScreenRatio;
}
my $ScaleW = $SW / $w * (100 - 2 * $OverscanX) / 100;
my $ScaleH = $SH / $h * (100 - 2 * $OverscanY) / 100;
$Pict = EscapeMeta($Pict);
$Mpeg = EscapeMeta($Mpeg);
print "$Pict -> $Mpeg\n" if $ListFiles;
my $Cmd = "$PNMCONV{$Type} $Pict 2> /dev/null |"
. "pnmscale $verbose1 --xscale=$ScaleW --yscale=$ScaleH |"
. "pnmpad $verbose1 --black --width $SW --height $SH |"
. "ppmntsc $verbose1 $system1 |"
. "ppmtoy4m $verbose2 -F $framerate -I p -S 420mpeg2 |"
. "mpeg2enc $verbose2 -f 3 -b 12500 -a $aspect -q 1 -n $system2 -o $Mpeg";
!system($Cmd) || die "$Cmd: $!\n";
$Cmd = "touch -r $Pict $Mpeg";
!system($Cmd) || die "$Cmd: $!\n";
}
sub EscapeMeta
{
my $META = ' !"#$%&\'()*;<>?[\\]`{|}~';
my $s = shift;
$s =~ s/([$META])/\\$1/g;
return $s;
}

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/*
* pictures.c: A plugin for the Video Disk Recorder
*
* See the README file for copyright information and how to reach the author.
*
* $Id: pictures.c 1.1 2008/01/13 11:29:27 kls Exp $
*/
#include <getopt.h>
#include <vdr/plugin.h>
#include "menu.h"
#include "player.h"
static const char *VERSION = "0.0.1";
static const char *DESCRIPTION = trNOOP("A simple picture viewer");
static const char *MAINMENUENTRY = trNOOP("Pictures");
// --- cMenuSetupPictures ----------------------------------------------------
class cMenuSetupPictures : public cMenuSetupPage {
private:
char newPictureDirectory[PATH_MAX];
int newSlideShowDelay;
protected:
virtual void Store(void);
public:
cMenuSetupPictures(void);
};
cMenuSetupPictures::cMenuSetupPictures(void)
{
strn0cpy(newPictureDirectory, PictureDirectory, sizeof(newPictureDirectory));
newSlideShowDelay = SlideShowDelay;
Add(new cMenuEditStrItem(tr("Picture directory"), newPictureDirectory, sizeof(newPictureDirectory)));
Add(new cMenuEditIntItem(tr("Slide show delay (s)"), &newSlideShowDelay));
}
void cMenuSetupPictures::Store(void)
{
SetupStore("PictureDirectory", strn0cpy(PictureDirectory, newPictureDirectory, sizeof(PictureDirectory)));
SetupStore("SlideShowDelay", SlideShowDelay = newSlideShowDelay);
}
// --- cPluginPictures -------------------------------------------------------
class cPluginPictures : public cPlugin {
private:
// Add any member variables or functions you may need here.
public:
cPluginPictures(void);
virtual ~cPluginPictures();
virtual const char *Version(void) { return VERSION; }
virtual const char *Description(void) { return tr(DESCRIPTION); }
virtual const char *CommandLineHelp(void);
virtual bool ProcessArgs(int argc, char *argv[]);
virtual const char *MainMenuEntry(void) { return tr(MAINMENUENTRY); }
virtual cOsdObject *MainMenuAction(void);
virtual cMenuSetupPage *SetupMenu(void);
virtual bool SetupParse(const char *Name, const char *Value);
};
cPluginPictures::cPluginPictures(void)
{
// Initialize any member variables here.
// DON'T DO ANYTHING ELSE THAT MAY HAVE SIDE EFFECTS, REQUIRE GLOBAL
// VDR OBJECTS TO EXIST OR PRODUCE ANY OUTPUT!
}
cPluginPictures::~cPluginPictures()
{
// Clean up after yourself!
}
const char *cPluginPictures::CommandLineHelp(void)
{
// Return a string that describes all known command line options.
return " -d DIR, --dir=DIR set the picture directory to DIR\n";
}
bool cPluginPictures::ProcessArgs(int argc, char *argv[])
{
// Implement command line argument processing here if applicable.
static struct option long_options[] = {
{ "dir", required_argument, NULL, 'd' },
{ NULL }
};
int c;
while ((c = getopt_long(argc, argv, "d:s:", long_options, NULL)) != -1) {
switch (c) {
case 'd': strn0cpy(PictureDirectory, optarg, sizeof(PictureDirectory));
break;
default: return false;
}
}
return true;
}
cOsdObject *cPluginPictures::MainMenuAction(void)
{
// Perform the action when selected from the main VDR menu.
if (*PictureDirectory)
return cPictureMenu::CreatePictureMenu();
Skins.Message(mtWarning, tr("No picture directory has been defined!"));
return NULL;
}
cMenuSetupPage *cPluginPictures::SetupMenu(void)
{
// Return a setup menu in case the plugin supports one.
return new cMenuSetupPictures;
}
bool cPluginPictures::SetupParse(const char *Name, const char *Value)
{
// Parse your own setup parameters and store their values.
if (!strcasecmp(Name, "PictureDirectory")) strn0cpy(PictureDirectory, Value, sizeof(PictureDirectory));
else if (!strcasecmp(Name, "SlideShowDelay")) SlideShowDelay = atoi(Value);
else
return false;
return true;
}
VDRPLUGINCREATOR(cPluginPictures); // Don't touch this!

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/*
* player.c: A player for still pictures
*
* See the README file for copyright information and how to reach the author.
*
* $Id: player.c 1.1 2008/01/13 11:29:27 kls Exp $
*/
#include "player.h"
#include <vdr/remote.h>
#include <vdr/tools.h>
int SlideShowDelay = 3; // seconds
cString HandleUnderscores(const char *s)
{
// Skip anything before and including the first '_' and replace
// any remaining '_' with blanks:
const char *p = strchr(s, '_');
if (p) {
p++;
char buf[strlen(p) + 1];
strcpy(buf, p);
return strreplace(buf, '_', ' ');
}
return s;
}
// --- cPicturePlayer --------------------------------------------------------
class cPicturePlayer : public cPlayer {
private:
int size;
int length;
uchar *buffer;
virtual void Activate(bool On);
public:
cPicturePlayer(void);
~cPicturePlayer();
void SetPicture(const char *FileName);
};
cPicturePlayer::cPicturePlayer(void)
{
size = KILOBYTE(100); // will be adjusted automatically if files are larger
length = 0;
buffer = MALLOC(uchar, size);
}
cPicturePlayer::~cPicturePlayer()
{
free(buffer);
}
void cPicturePlayer::Activate(bool On)
{
if (length > 0)
DeviceStillPicture(buffer, length);
}
void cPicturePlayer::SetPicture(const char *FileName)
{
int f = open(FileName, O_RDONLY);
if (f >= 0) {
for (;;) {
length = read(f, buffer, size);
if (length > 0) {
if (length >= size) {
size = size * 3 / 2;
buffer = (uchar *)realloc(buffer, size);
lseek(f, 0, SEEK_SET);
continue;
}
DeviceStillPicture(buffer, length);
}
else
LOG_ERROR_STR(FileName);
break;
}
close(f);
}
else
LOG_ERROR_STR(FileName);
}
// --- cPictureControl -------------------------------------------------------
int cPictureControl::active = 0;
cString cPictureControl::lastDisplayed;
cPictureControl::cPictureControl(cPictureEntry *Pictures, const cPictureEntry *PictureEntry, bool SlideShow)
:cControl(player = new cPicturePlayer)
{
pictures = Pictures;
pictureEntry = PictureEntry;
osd = NULL;
lastPath = "/";
slideShow = SlideShow;
alwaysDisplayCaption = false;
NextPicture(slideShow && pictureEntry->IsDirectory() ? 1 : 0);
active++;
}
cPictureControl::~cPictureControl()
{
active--;
delete osd;
delete player;
delete pictures;
}
void cPictureControl::NextPicture(int Direction)
{
if (Direction) {
const cPictureEntry *pe = Direction > 0 ? pictureEntry->NextPicture() : pictureEntry->PrevPicture();
if (pe)
pictureEntry = pe;
}
if (pictureEntry) {
player->SetPicture(pictureEntry->Path());
DisplayCaption();
}
}
void cPictureControl::NextDirectory(int Direction)
{
// This only works reliable if a directory contains only subdirectories or pictures, not both!
if (Direction) {
const cPictureEntry *pe = Direction > 0 ? pictureEntry->Parent()->Entries()->Last()->NextPicture() : pictureEntry->Parent()->Entries()->First()->PrevPicture();
if (pe && Direction < 0)
pe = pe->Parent()->Entries()->First();
if (pe && pe != pictureEntry) {
pictureEntry = pe;
player->SetPicture(pictureEntry->Path());
DisplayCaption();
}
}
}
static void DrawTextOutlined(cOsd *Osd, int x, int y, const char *s, tColor ColorFg, tColor ColorBg, const cFont *Font)
{
for (int dx = -1; dx <= 1; dx++) {
for (int dy = -1; dy <= 1; dy++) {
if (dx || dy)
Osd->DrawText(x + dx, y + dy, s, ColorBg, clrTransparent, Font);
}
}
Osd->DrawText(x, y, s, ColorFg, clrTransparent, Font);
}
void cPictureControl::DisplayCaption(void)
{
bool Force = false;
cString Path = pictureEntry->Path();
lastDisplayed = Path + strlen(pictures->Name()) + 1;
const char *p = strrchr(Path, '/');
const char *q = strrchr(lastPath, '/');
if (p && q) {
int lp = p - Path;
int lq = q - lastPath;
if (lp != lq || strncmp(lastPath, Path, lp)) {
lastPath = Path;
Force = true;
}
}
if (!alwaysDisplayCaption && !Force) {
DELETENULL(osd);
return;
}
const cFont *Font = cFont::GetFont(fontOsd);
int w = cOsd::OsdWidth();
int h = 2 * Font->Height();
if (!osd) {
osd = cOsdProvider::NewOsd(cOsd::OsdLeft(), cOsd::OsdTop() + cOsd::OsdHeight() - h, OSD_LEVEL_SUBTITLES);
tArea Areas[] = { { 0, 0, w, h, 8 } };
if (Setup.AntiAlias && osd->CanHandleAreas(Areas, sizeof(Areas) / sizeof(tArea)) == oeOk)
osd->SetAreas(Areas, sizeof(Areas) / sizeof(tArea));
else {
tArea Areas[] = { { 0, 0, w, h, 4 } };
osd->SetAreas(Areas, sizeof(Areas) / sizeof(tArea));
}
}
const char *Year = pictureEntry->Parent()->Parent() ? pictureEntry->Parent()->Parent()->Name() : "";
cString Description = HandleUnderscores(pictureEntry->Parent()->Name());
osd->DrawRectangle(0, 0, w - 1, h - 1, clrTransparent);
DrawTextOutlined(osd, 0, 0, Description, clrWhite, clrBlack, Font);
DrawTextOutlined(osd, 0, h / 2, Year, clrWhite, clrBlack, Font);
struct stat sb;
if (stat(Path, &sb) == 0) {
cString Time = DayDateTime(sb.st_mtime);
DrawTextOutlined(osd, w - Font->Width(Time), h / 2, Time, clrWhite, clrBlack, Font);
}
p++;
Path.Truncate(-4); // don't display the ".mpg" extension
DrawTextOutlined(osd, w - Font->Width(p), 0, p, clrWhite, clrBlack, Font);
osd->Flush();
}
eOSState cPictureControl::ProcessKey(eKeys Key)
{
switch (Key) {
case kUp:
case kPlay: slideShowDelay.Set();
slideShow = true;
break;
case kDown:
case kPause: slideShow = false;
break;
case kLeft|k_Repeat:
case kLeft: NextPicture(-1);
slideShow = false;
break;
case kRight|k_Repeat:
case kRight: NextPicture(+1);
slideShow = false;
break;
case kOk: if (osd && !alwaysDisplayCaption)
DELETENULL(osd);
else {
alwaysDisplayCaption = !alwaysDisplayCaption;
DisplayCaption();
}
break;
case kGreen:
case kPrev: NextDirectory(-1);
slideShow = false;
break;
case kYellow:
case kNext: NextDirectory(+1);
slideShow = false;
break;
case kBlue:
case kStop: return osEnd;
case kBack: slideShow = false;
cRemote::CallPlugin(PLUGIN_NAME_I18N);
break;
default: break;
}
if (slideShow && slideShowDelay.TimedOut()) {
NextPicture(+1);
slideShowDelay.Set(SlideShowDelay * 1000);
}
return osContinue;
}
const char *cPictureControl::LastDisplayed(void)
{
return lastDisplayed;
}

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/*
* player.h: A player for still pictures
*
* See the README file for copyright information and how to reach the author.
*
* $Id: player.h 1.1 2008/01/13 11:29:27 kls Exp $
*/
#ifndef _PLAYER_H
#define _PLAYER_H
#include <vdr/osd.h>
#include <vdr/player.h>
#include <vdr/tools.h>
#include "entry.h"
extern int SlideShowDelay;
cString HandleUnderscores(const char *s);
class cPicturePlayer;
class cPictureControl : public cControl {
private:
static int active;
static cString lastDisplayed;
cPictureEntry *pictures;
const cPictureEntry *pictureEntry;
cPicturePlayer *player;
cOsd *osd;
cString lastPath;
cTimeMs slideShowDelay;
bool slideShow;
bool alwaysDisplayCaption;
void NextPicture(int Direction);
void NextDirectory(int Direction);
void DisplayCaption(void);
virtual void Hide(void) {}
public:
cPictureControl(cPictureEntry *Pictures, const cPictureEntry *PictureEntry, bool SlideShow = false);
virtual ~cPictureControl();
virtual eOSState ProcessKey(eKeys Key);
static bool Active(void) { return active > 0; }
static const char *LastDisplayed(void);
};
#endif //_PLAYER_H

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# VDR plugin language source file.
# Copyright (C) 2008 Klaus Schmidinger <kls@cadsoft.de>
# This file is distributed under the same license as the VDR package.
# Klaus Schmidinger <kls@cadsoft.de>, 2008.
#
msgid ""
msgstr ""
"Project-Id-Version: pictures 0.0.1\n"
"Report-Msgid-Bugs-To: <vdr-bugs@cadsoft.de>\n"
"POT-Creation-Date: 2008-01-12 17:38+0100\n"
"PO-Revision-Date: 2008-01-12 17:41+0100\n"
"Last-Translator: Klaus Schmidinger <kls@cadsoft.de>\n"
"Language-Team: German\n"
"MIME-Version: 1.0\n"
"Content-Type: text/plain; charset=ISO-8859-15\n"
"Content-Transfer-Encoding: 8bit\n"
"Plural-Forms: nplurals=2; plural=(n != 1);\n"
msgid "Pictures"
msgstr "Bilder"
msgid "A simple picture viewer"
msgstr "Ein einfacher Bildbetrachter"
msgid "Picture directory"
msgstr "Bilder-Verzeichnis"
msgid "Slide show delay (s)"
msgstr "Dia-Schau Wartezeit"
msgid "No picture directory has been defined!"
msgstr "Es wurde kein Bilder-Verzeichnis angegeben!"