Age | Commit message (Collapse) | Author |
|
- Fixed some spelling errors in 'newplugin' (thanks to Ville Skyttä).
- Fixed a busy loop in fast forward if the next video data file is missing
(thanks to Reinhard Nissl).
- Fixed handling frequencies in NitFilter::Process() (thanks to Anssi Hannula).
- Fixed a race condition with signal handlers at program exit (thanks to Udo
Richter).
- Non-primary devices in Transfer mode are now also used for recording (thanks
to Anssi Hannula).
- Fixed handling ChannelUp/Down keys if there is currently a replay running
(thanks to Marco Schlüßler).
- The new SVDRP command REMO can be used to turn VDR's remote control off and
on in case other programs need to be controlled (based on patches from Krzysztof
Parma and Helmut Auer).
- Increased the maximum number of CA system ids to cope with the AlphaCrypt
CAM's version 3.11 firmware.
- Fixed getting the code setting from the locale (thanks to Matthias Schwarzott).
- Implemented support for Freetype fonts (based on a patch from Alexander Riedel).
The font names and sizes can be adjusted in the "Setup/OSD" menu.
Note that VDR now requires freetype fonts to be installed in
/usr/share/fonts/truetype.
- If the OSD device in use has at least 8bpp bitmap depth and this is also
used by the current skin, Freetype fonts are displayed "anti-aliased".
The new setup parameter "OSD/Anti-alias" can be used to turn this off.
- The new function cOsd::SetAntiAliasGranularity() can be used to help the OSD
in managing the available color palette entries when doing anti-aliasing.
Skins that use 8bpp bitmaps can call this function with the maximum number
of colors used, and the maximum number of color combinations. The OSD will
then evenly split the available palette entries between the various colors
combinations, so that fonts can be "anti-aliased". By default a total of
10 colors and 10 combinations is assumed.
- The pixel fonts have been completely removed from the VDR source.
- VDR is now "UTF-8 aware". It handles strings according to the character
encoding used on the user's system. All internationalization strings and
incoming SI data are converted to the system encoding.
- Plugins that handle strings need to be aware that on systems with UTF-8
encoding a "character symbol" may consist of more than a single byte in
memory. The functions and macros named Utf8...() can be used to handle
strings without needing to care about the underlying character encoding
(see tools.h for details).
- Even though the weekdays of repeating timers are presented to the user as UTF-8
characters in the OSD, the timers.conf file and the SVDRP timer commands still
use single byte characters ("MTWTFSS") to make sure this information is handled
correctly between systems with different character encodings.
- Added a missing i18n string for "CAM" in the Turkish OSD texts.
- Improved editing strings that are too long to fit into the editable area.
- Changes to the OSD settings in the "Setup/OSD" menu now immediately take effect
when the "Ok" key is pressed.
|
|
- Removed leftover 'needsBufferReserve' variable from cTransfer (thanks to Marco
Schlüßler).
- Fixed setting "No title" for broken event data (reported by Ronny Kornexl).
- Fixed channel up/down switching on single card systems (reported by Stefan
Huelswitt).
- Fixed handling "pending" timers that blocked others that actually could record
(reported by Thomas Koch).
- Speeded up cVideoRepacker (thanks to Reinhard Nissl).
- Added an 'Id' parameter to cDevice::PlayAudio() to allow plugins to easier
process the audio data (thanks to Marco Schlüßler).
- Added Czech language texts (thanks to Vladimír Bárta).
Plugin authors may want to add the new entries to their I18N texts and contact
the translators to have their texts translated. Note that there are now 21
different OSD languages, so please make sure you have 21 versions for each of
your texts.
- Updated the Polish OSD texts (thanks to Jaroslaw Swierczynski).
- Fixed auto advance in string entry fields when pressing Up/Down in insert mode
(reported by Udo Richter).
- Fixed handling the "Setup/OSD/Menu button closes" option when set to 'yes' in
case a replay is active (thanks to Udo Richter).
- Improved cUnbufferedFile; USE_FADVISE is now defined in tools.c by default, so
if you don't want to use "fadvise" you need to comment out that line (thanks to
Artur Skawina).
- Fixed a missing ',' in the Swedish OSD texts (thanks to Arthur Konovalov).
- cDevice::Transferring() can now be used to determine whether the (primary)
device is currently playing in Transfer Mode (based on a suggestion by
Reinhard Nissl).
- The 'runvdr' script no longer uses the $VDRUSR environment variable to set
the user id under which 'vdr' shall run. Just add the '-u username' option
when you call 'runvdr'.
- Fixed multiple entries of the same subdirectory in the "Recordings" menu
(reported by Christian Jacobsen).
- Enabled generating a core dump if VDR is run with a different user id (thanks
to Ville Skyttä).
- Fixed handling the "Blue" key in the "Schedule" menu for the current channel
(thanks to Rolf Ahrenberg).
- Renamed the Makefile target 'plugins-clean' to 'clean-plugins' (suggested by
Sebastian Frei).
- Made all font and image data 'const' (thanks to Darren Salt).
- Fixed scrolling with Up/Down in case there are non-selectable items at the
beginning or end of the menu (reported by Helmut Auer).
- Added cSkin::GetTextAreaWidth() and cSkin::GetTextAreaFont(), so that a plugin
that wants to do special text formatting can do so (thanks to Alexander Rieger).
|
|
- Fixed handling second audio and Dolby Digital PIDs for encrypted channels
(was broken in version 1.3.37).
- Improved TS/PES conversion to better handle lost TS packets (thanks to
Reinhard Nissl).
- Limited the frequency of log messages from the cRepackers.
- Now using the gettid() syscall to get a thread's pid, so that we get a
useful value on NPTL systems (suggested by Johannes Stezenbach).
- Fixed the RCU remote control handling to avoid problems with NPTL (thanks
to Andreas Share for reporting a lockup with the RCU on NPTL systems).
- When displaying the amount of free disk space, the space consumed by
recordings that have been "deleted" but not yet actually "removed" is now
taken into account (suggested by Christian Vogt).
- Now avoiding unnecessary disk access when checking if there are deleted
recordings that need to be removed (reported by Carsten Koch).
- Fixed handling the DELETEDLIFETIME when removing deleted recordings. Now
a deleted recording is retained at least DELETEDLIFETIME seconds before
actually removing it.
The value of DELETEDLIFETIME has been changed to 300. So after (possibly
inadvertently) deleting a recording, there will be at least 5 minutes
in which it can be recovered (unless a new recording immediately requires
the disk space). The count starts again at 0 every time VDR is started.
- Fixed a possible crash when displaying the "Low disk space!" message from
a background thread (thanks to Christof Steininger).
- Fixed handling OSD areas that have invalid sizes (thanks to Marco Schlüßler).
- Added a mutex to AssertFreeDiskSpace() to make sure calls from foreground
and background threads won't interfere.
- The main menu now dynamically updates its contents in case an instant
recording or replay stops, etc.
- The version number of EPG events is now also stored in the epg.data file
(thanks to Kendy Kutzner).
- EPG events that are no longer in the currently broadcasted data stream are
now automatically deleted.
- Removed an invalid access to Event->schedule in cSchedule::DelEvent().
- Modified cSchedule::Cleanup() (events are always sorted by time).
- Schedules are now cleaned up once every hour (not only at 05:00).
- The "Schedule" and "What's on now/next?" menus are now updated if a timer
is set or modified.
- cTimer no longer has its own 'schedule' member, it rather uses that of the
event it has been set to.
- The "Red" button in the "Schedule", "What's on now/next?" and "Event" menus
now immediately creates a timer for the selected event and marks it with 'T'.
If the event is already marked with 'T', the "Red" button opens the "Edit
timer" menu for that timer.
- Removing deleted recordings is now done in a separate thread.
- Dropped the unused "stop recording on primary interface" stuff.
- Converting a grabbed image to JPEG is now done with the new function
RgbToJpeg() (see tools.h).
- The SVDRP command GRAB now determines the image type (JPEG or PNM) from the
extension (".jpg", ".jpeg" or ".pnm") of the given file name. The explicit
'jpeg' or 'pnm' parameter is still accepted for backward compatibility, but
has no meaning any more.
- The function cDevice::GrabImage() no longer writes the grabbed image to a
file, but rather returns a pointer to the image in memory. The wrapper
function cDevice::GrabImageFile() can be used to write the grabbed image
directly to a file. Plugins that used the old version of cDevice::GrabImage()
need to be adapted to the new interface.
- The new class cBase64Encoder (see tools.h) can be used to encode data in
base64 (thanks to Bob Withers for publishing his Base64 class).
- The SVDRP command GRAB now writes the image data to the SVDRP connection
(encoded in base64) if the given file name consists of only the file
extension (".jpg", ".jpeg" or ".pnm"), or if only "-" is given as file
name (based on a suggestion from Darren Salt).
A simple way of viewing a grabbed image on a remote host is:
svdrpsend.pl -d <hostname> 'grab -' | sed -n -e 's/^216-//p' -e '1ibegin-base64 644 -' -e '$a====' | uudecode | display -
- The new command line option '-g' must be given if the SVDRP command GRAB
shall be allowed to write image files to disk. The parameter to this option
must be the full path name of an existing directory, without any "..", double
'/' or symlinks. By default, or if "-g- is given, grabbing to files is
not allowed any more because of potential security risks.
- Modified the way the SVDRP command GRAB writes the grabbed image to a file
to avoid a security hole (CAN-2005-0071, reported by Javier Fernández-Sanguino
Peña):
+ The file handle is now opened in a way that it won't follow symbolic links
(suggested by Darren Salt).
+ The given file name is now canonicalized, so that it won't contain any
".." or symlinks (suggested by Darren Salt).
+ Grabbing to files is limited to the directory given in the the command
line option '-g'. By default grabbing to files is not allowed any more.
- Updated the Greek OSD texts (thanks to Dimitrios Dimitrakos).
- Changed all "illegal" to "invalid" in error messages (there's nothing "illegal"
in VDR ;-).
- When started as user 'root' VDR now switches to a lesser privileged user id,
keeping the capability to set the system time (based on a patch from Ludwig
Nussel). By default the user id 'vdr' is used, which can be changed through
the new command line option '-u'. Note that for security reasons VDR will no
longer run as user 'root' (unless you explicitly start it with '-u root',
but this is not recommended!). The 'runvdr' script has been changed to
use the '-u' option.
- Changed the API of the functions cStatus::Recording() and cStatus::Replaying(),
so that they can provide the full file name of the recording. Plugins that use
these (or the related cStatus::Msg...() functions) need to be adapted
(suggested by Andreas Brugger).
- The DVB devices now retune (and, if applicable, resend the DiSEqC data) if
the lock is lost (based on a patch from Reinhard Nissl).
- Fixed handling multi byte key sequences in cKbdRemote (based on a patch from
Jürgen Schneider).
- Removed unused variables in skinclassic.c and skinsttng.c (thanks to Marco
Schlüßler).
- Made the static cControl functions thread safe (thanks to Patrick Fischer).
- Fixed initializing pthread_mutexattr_t and pthread_rwlockattr_t to avoid
warnings with g++ 4.1.0 (thanks to Ville Skyttä).
- Fixed incrementing the 'state' variables in the repacker classes in remux.c
to avoid warnings with g++ 4.1.0 (reported by Ville Skyttä).
- The Makefile now reports a summary of failed plugins (thanks to Udo Richter).
- The cTimer constructor can now take an optional cChannel (suggested by
Patrick Fischer).
- Fixed setting the main thread id if VDR is running as a daemon.
- Fixed handling TS packets in cTS2PES (thanks to Reinhard Nissl).
- Added cTimer::SetPriority() to set a timer's priority (suggested by Kendy Kutzner).
- Added cMenuEditStrItem::InEditMode() (suggested by Christian Wieninger).
- Now using FE_READ_STATUS to read the current frontend status (suggested by
Holger Wächtler).
- The "Menu" key now behaves consistently. If there is anything on the OSD, it
is closed when the "Menu" key is pressed, and if there is nothing on the OSD,
the "Menu" key opens the main menu (suggested by Luca Olivetti).
- The new option "Setup/OSD/Timeout requested channel info" can be used to turn
off the automatic timeout of the channel display in case it was invoked by
a press of the "Ok" key (suggested by Thiemo Gehrke).
- A message is now given when an instant recording is started (suggested by
Helmut Auer). Actually the code was already there, just commented out - don't
remember why it wasn't active...
- Removed an obsolete "Summary" text from i18n.c and preceded all key definition
texts with "Key$" to avoid duplicates (reported by Lucian Muresan).
- Preceded all button texts with "Button$".
- Removed obsolete "Eject", "Language" and "scanning recordings..." texts.
- Added missing #include "thread.h" to dvbspu.c (reported by Gavin Hamill).
- Disabled the use of "fadvise" in cUnbufferedFile because there have been
several reports that it causes more problems than it solves (suggested by
Petri Hintukainen). If you want to use "fadvise", you can activate the line
//#define USE_FADVISE
in tools.c.
- Removed unused 'offset' member from cOsdItem.
- In the "Channels" menu the numeric keys now position the cursor to the channel
with the given number (see MANUAL, section "Remote Control Keys", note (3) for
details).
- The "Mark/Move" function in the "Channels" menu now also works in the non-numeric
sort modes.
- The default cOsdObject::Show() now automatically calls cOsdMenu::Display() if
this is a menu.
- The new "Info" key brings up information on the currently viewed programme
or recording. For a live programme this is the same as "Schedule/Ok", i.e. the
description of the current EPG event. For a recording this is the same as shown
by the "Info" button in the "Recordings" menu. Plugins that implement players
can overwrite their cControl::GetInfo() function to show their own info (see
PLUGINS.html for details). Pressing the "Info" key again while the info is
displayed will close the OSD. In order to assign this new key to an existing
remote control setup, the remote.conf file needs to be deleted and VDR has
to be restarted to go through the process of learning the remote control keys.
- Any cReceivers still attached to a cDevice when that device switches to a
different transponder are now automatically detached (suggested by Patrick
Fischer).
- The "flags" of a timer are now handled as an unsigned integer value. In order
to do this, the interface of cMenuEditBitItem also had to be changed.
- In string entry fields (like, e.g., the file name of a recording) the characters
can now be entered by pressing the numeric keys, the same way as on a
telephone keypad (based on the "Easy Input" patch from Marcel Schaeben).
- Fixed the "Day" field of the "Edit timer" menu when pressing '0' to switch
from "single shot" to "weekly", followed by the "Right" key (reported by
Andreas Böttger).
- The file 'ca.conf' is obsolete and has been removed.
- Revised all descriptions regarding CICAM.
- Adapted c(Dvb)Device::ProvidesCa() to the dynamic CA handling.
- Added a mutex to synchronize cDevice::PlayPesPacket() and SetCurrentAudioTrack()
(thanks to Reinhard Nissl).
- Added a SleepMs() in cRecorder::Action() to avoid a busy loop (thanks to Ingo
Schneider).
- Cleaned up some trailing white space.
|
|
- Removed an unused variable from cTimer::GetWDayFromMDay() (thanks to Wayne Keer
for reporting this one).
- Some more changes to the 'childTid' handling in cThread (based on suggestions by
Stefan Huelswitt).
- Fixed the spelling of 'canceling' (thanks to Wayne Keer for reporting this one).
- Re-introduced a sleep to cDvbPlayer::Action() to avoid high CPU load in still
picture mode (thanks to Reinhard Nissl for reporting this one).
- Fixed a possible race condition in generating the DVB device names (thanks to
Rainer Zocholl for reporting this one).
- Changed the way PES packets are played to allow replay of AC3 sound over the
full featured DVB cards (partially based on a patch from Werner Fink).
+ The new function cDevice::PlayPes() is now called with the complete PES data
stream and calls PlayVideo() and PlayAudio() as necessary.
+ cDevice::PlayVideo() is now only called with actual video PES packets.
+ cDevice::PlayAudio() is now called with the actual audio PES packets, which
can be either "normal" audio or AC3 data. You need at least firmware version
0x261d to replay AC3 sound over a full featured DVB card. This function now
has an 'int' return value.
+ PlayAudio() of derived cDevice classes shall no longer call the base class
function. It shall just play the given data as audio.
+ cPlayer::PlayVideo() and cPlayer::PlayAudio() are now obsolete and have been
replaced with cPlayer::PlayPes().
+ All StripAudioPackets() functions are now obsolete. The functionality has been
moved into cDevice::PlayPes(), where only the video and audio packets that are
actually required will be processed.
+ All audio track handling is now done by cDevice; cTransfer and cDvbPlayer no
longer care about audio tracks. cPlayer, however, still has the virtual hooks
for audio track handling in order to allow plugins to implement players that
have their own idea about this.
+ cChannel::[AD]pid[12]() have been replaced with cChannel::[AD]pid(int i) to
allow access to all available PIDs.
- Escaped the '-' and 'ö' characters in the man pages (thanks to Darren Salt for
pointing this out).
- Completed the Italian OSD texts (thanks to Sean Carlos).
- Fixed setting 'synced' in cRemux when recording radio channels (thanks to
Laurence Abbott).
- Removed the LOCK_THREAD from the LIRC thread (thanks to Ludwig Nussel).
- Fixed genfontfile.c (sometimes the character width was wrong, and the codes were
shifted one too far to the left).
- Fixed the character width and shifted the codes one to the right in all font
files.
- Renamed font???.c to font???-iso8859-1.c for symmetry.
- Switched the character set to iso8859-15 for English, German and Finnish (thanks
to Andreas Brugger for reporting the missing Euro sign in iso8859-1).
- Added 'channels.conf.terr' entries for Lübeck (thanks to Stefan Hußfeldt).
- Fixed a race condition in starting a thread (thanks to Reinhard Nissl for
reporting this one).
- Replaced non-threadsafe library functions with their threadsafe versions (thanks
to Rainer Zocholl for pointing this out).
- Other non-threadsafe functions have been replaced by threadsafe classes that hide
the actual buffering. In particular these are:
readdir() -> cReadDir
readline() -> cReadLine
- Several formerly non-threadsafe functions now have a return type of cString:
cChannel::ToText()
tChannelID::ToString()
cEvent::GetDateString()
cEvent::GetTimeString()
cEvent::GetEndTimeString()
cEvent::GetVpsString()
cMark::ToText()
cTimer::ToText()
cSource::ToString()
cTimer::PrintDay()
cTimer::PrintFirstDay()
PrefixVideoFileName()
IndexToHMSF()
ChannelString()
strescape()
AddDirectory()
itoa()
WeekDayName()
DayDateTime()
When using these functions in a 'const char *' context there is nothing special
to consider, except that you can no longer have a pointer to the return value,
as in
const char *date = DayDateTime();
Although this will compile without error message, the resulting 'date' will not
be valid after this line. Use this instead:
cString date = DayDateTime();
In a 'const void *' context (as in printf() etc.) the result needs to be
dereferenced with a '*', as in
printf("%s", *DayDateTime());
to make it a 'const char *'.
- Removed delay_ms(), using cCondWait::SleepMs() instead.
- Replaced time_ms() with a threadsafe and non-overflowing cTimeMs (thanks to Rainer
Zocholl for pointing out this problem).
- Added cDevice::mutexReceiver to avoid a race condition when attaching/detaching
receivers from different threads.
- The new remote control button "Audio" can be used to switch between different
audio tracks. The "Green" button in the "Main" menu has been changed from "Language"
to "Audio", since it now also controls switching between normal and Dolby Digital
audio tracks (see MANUAL for details).
- The description of the audio tracks is now taken from the "component descriptors"
that are broadcast in the EPG data. However (as no big surprise), not all channels
actually provide useful data here, so there are now some additional EPG bugfixes,
which can be activated by setting the "EPG bugfix level" to 3.
- The format of the 'epg.data' files has been extended by the new tag 'X', which
contains the stream components of an event (see man vdr(5) for details).
- The cStatus class now has the new member function SetAudioTrack(), which can be
used to get notified when the audio track has been switched, and the new member
function SetAudioChannel() which is called when the audio channel is changed.
- Skins need to implement the new cSkinDisplayTrack class to display the audio
track menu.
- The ST:TNG skin now displays the current audio track description (if any) at the
botton left side.
- The new setup option "DVB/Audio languages" can be used to control which audio
language shall be selected in case a channel broadcasts in different languages
(see MANUAL for details).
- The "Left" and "Right" keys in the "Audio" menu can be used to switch between
the left and right stereo channels in case there are different audio tracks
in these channels (see MANUAL for details).
- Fixed a possible race condition in cDevice::Action() (thanks to Mattias Grönlund).
- Fixed the default quality value when grabbing a JPEG image (thanks to Patrick
Gleichmann).
- Fixed deleting a menu item in case the next item is not selectable (thanks to
Dino Ravnic).
- Implemented displaying mandatory subtitles in the SPU decoder (thanks to Marco
Schlüßler).
- The setup option "Recording/Record Dolby Digital" has been renamed and moved to
"DVB/Use Dolby Digital". It now controls whether Dolby Digital is recorded and
whether an available DD audio track will appear in the "Audio" menu.
- Added support for circular polarization (thanks to Jonan Santiago).
- Thanks to Werner Fink, Reinhard Nissl, Sascha Volkenandt and Bjørnar Nilsen for
their support in testing and fine tuning this version.
|
|
- Fixed detecting transponder lock in cDvbTuner (based on a patch from Stefan
Meyknecht).
- What was previously marked with WAIT_FOR_LOCK_AFTER_TUNING is now permanently
active and uses a cCondVar to signal when a transponder is locked.
- Added some missing 'const' to cChannel.
- Added a sample setup for 'DisiCon-4 Single Cable Network' to 'diseqc.conf'
(thanks to Oliver Endriss).
- Fixed attaching a cPlayer to a cDevice, so that 'Operation not permitted'
errors don't occur any more (thanks to Marco Schlüßler).
- Fixed a case where the resultBuffer in cRemux ran full before getting a sync.
- Removed the usleep() call from cDvbPlayer::Action() to make VDR run on NPTL
systems (thanks to Alfred Zastrow). The NPTL check at startup has also been
removed.
- Taking the complete size of available data into account when deciding whether
to clear the transfer buffer to avoid overflows (thanks to Reinhard Nissl).
- Updated Romanian language texts and the iso8859-2 fonts (thanks to Lucian Muresan).
- Now actually using the iso8859-15 fonts (thanks to Lucian Muresan).
- Some minor code cleanups (thanks to Prakash K. Cheemplavam).
- Fixed missing cleanup at program exit in case there is a problem with a plugin
(thanks to Mattias Grönlund for pointing this out).
- Increased the required free buffer space in the resultBuffer of cRemux to
2 * IPACKS to avoid a buffer overflow in case a cTS2PES writes one complete
packet and then (within processing the same TS packet) wants to write another
small packet.
- Removed the signal handler and WakeUp() call from cThread (it is no longer
needed).
- Added some checks when canceling a thread and removed the usleep() in
cThread::Start() (suggested by Ludwig Nussel). Also removed 'running' from
cThread and using only childTid to indicate whether a thread is actually
running.
- Added cCondWait::Sleep() and using it to replace all usleep() calls (based
on a suggestion by Werner Fink).
- Only assigning events to timers if the related schedule has actually been
modified.
- When searching for the present event, the running status is now only taken
into account if the event has been "seen" within the past 30 seconds.
This avoids shortly seeing the wrong events in the channel display when
switching to a channel that hasn't been tuned to in a while.
|
|
- Some corrections to the French OSD texts (thanks to Olivier Jacques).
- Fixed some missing commas in i18n.c (thanks to Dimitrios Dimitrakos for
reporting this problem).
- Some corrections to the Finnish OSD texts (thanks to Niko Tarnanen and Rolf
Ahrenberg).
- Completed the Italian OSD texts (thanks to Antonio Ospite).
- Fixed breaking off replay in case the user hits "Play" or "Pause" too soon after
going into "Pause live video" mode (thanks to Karim Afifi for reporting ths one).
- Some corrections to the Catalanian OSD texts (thanks to Jordi Vilà).
- Single event timers are now deleted if the recording they are doing is
deleted before the timer ends.
- Fixed an uninitialized variable in cDisplayChannel (thanks to Stefan Huelswitt).
- Fixed a possible access of invalid file handles in cSIProcessor::Action()
(thanks to Stefan Huelswitt).
|
|
- Modified LIRC interface to better handle repeat function.
- Faster OSD by first writing into a bitmap and then sending the entire bitmap
to the DVB driver at once (requires the patch 'dvb.c.071.diff' to be applied
against the version 0.71 DVB driver file 'dvb.c').
- When switching channels the channel is now immediately displayed, and the
current/next information is shown as soon as it becomes available.
- No longer displaying the year in the 'Recordings' menu to saves space for the
title.
- The 'Recordings' menu now displays a '*' to indicate new recordings.
- Added the description of the timers.conf file to the FORMATS file (thanks to
Bastian Guse).
- Displaying as much as possible of the current/next info (dropping characters
that would display only partially).
- In normal viewing mode the '0' key now toggles between the current and the
previous channel.
|