ReClock DirectShow Filter
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What
is it ?
The purpose of ReClock is to definitely get rid of jerky playback of AVI and
MPEG material on a PC (or a HTPC driving a TV, a flat panel, or a video-projector).
It's a DirectShow filter which is loaded in place of the default directsound
audio renderer.
It provides a new reference clock that is locked to the video card hardware
clock, in order to ensure that frames are played at the exact speed of what
is expected by the video card vertical sync.
It also provides a frame rate adaptator for media files that do not match a
multiple of the video card refresh rate (ex: playback of 23,976fps IVTC NTSC
on a PAL TV).
The
combination of the two will give you the true experience of smooth playback
with your PC.
Finally it is an audio renderer with hardware or software rate adaptation in
real-time, multi-channel audio, audio timestretching (pal speedup compensation)
and dynamic range compression capabilities.
For a full description of ReClock, please read carefully the README file in
the distribution. There is also a little FAQ at the bottom of the page that
answers common questions.
Known
problems and issues:
* Graphedit cannot save a graph with ReClock when ReClock is selected
as active reference clock
* Morgan Stream Switcher
does not work with ReClock (won't load if ReClock is used)
* Vsync correction will not activate when playback of DVD use DXVA mode
Planned evolutions:
* On the fly AC3 encoding
* Internal audio stream switcher
Changelog and download:
If
you are intrepid enough you can try the last beta version available (currently
1.7 beta 4 here).
If not, please use one official stable version below.
22/12/2005 - Version 1.6 available here
* you can
now allow ReClock to load only with some players/applications. See advanced
settings in config app
* the VBS notification
script now receive the file name or the DVD mode if playing a DVD
* added a new audio renderer based on "kernel streaming". This renderer access
directly your audio card using a WDM interface, and thus completely bypass Windows
internal handling of audio that can alter sound quality (directsound resampling,
etc...). See config app
* added an indication in "renderers infos" box that indicate if reclock did
alter the audio bitstream (for example to resample, timestrech audio or modify
dynamic range)
* the old low quality sound resampler has been replaced with a new one that
can achieve much better quality. You can now choose between 4 resampling modes
(low quality will use little CPU, higher quality will use more CPU). See config
app
* audio time stretching support coming from WinDVD have been dropped, since
ReClock now have builtin timestretching code that yields better audio quality
and is more CPU efficient
* the audio compressor, resampler and timestreching code are now plugins (DLL)
that are loaded by ReClock at startup. This is more GPL compliant since ReClock
does not need a single line of GPL code to be compiled, and you can now alter
those plugins using the source distribution given with ReClock
* you can now bypass the monitor detection in multi-head environnement. It can
be automatic as in version 1.4 or you can force ReClock to think it is running
on a specified monitor. See config app
* tray icon can be disabled with config app
* built-in framerate estimator is now compatible with Trimension DNM (WinDVD
feature)
* improved builtin framerate estimator (less sensitive to cpu load, works better
with NTSC DVD)
* added new choices in adaptation menu
* ReClock will no more display a crash dialog when the code responsible of the
crash was not in ReClock itself (too many people associated those crashes with
problems in ReClock). Crash data will be silently logged anyway, and error will
be reported as if ReClock was not loaded
* fixed problem in video card detection at startup in multi-monitor config
* fixed bugs that would lead to a crash when video card detection goes wrong
at startup or when resolution change
* fixed a bug in automatic monitor tracking (would not detect that the player
window was dragged to another monitor)
* fixed a bug in refresh rate detection that could be false sometimes with some
NVidia cards
* fixed a bug in crash situation when the crash dialog that would not always
appear leaving the player in some zombie state
* fixed a bug in PCM 32 bits sound handling that would distort sound in some
rare cases
* fixed a bug that could cause a crash if event notification was enabled and
player was in disabled players list
* reduced dramatically memory footprint of ReClock especially when multichannel
audio is played
* compiled with VS2005 and latest SDKs
* other various bugfixes
22/12/2005
- Version 1.5 not available
* never
released - beta only
25/04/2004
- Version 1.4 available here
* improved multi-head display support. If Windows is configured to
make use of more than
one monitor, reclock will automatically identify on which monitor the playback
window is open, and will correct the clock of the video card attached to this
monitor. As it is no longer necessary to select an adapter in configuration
app this setting have been removed
* experimental support for time stretching (alteration of audio track speed
without pitch modification). This support requires WinDVD 5 to be installed,
because ReClock will make use of a WinDVD DMO filter to achieve this. Now you
can alter playback speed of a movie without hearing a pitch change! There is
also an option to correct the pitch of PAL DVD in order to counteract the "PAL
speedup" problem. See config app and properties panel for settings
* improved VBS notification with new events (STOP and QUIT) and multi-monitor
support. See RunEvent.sample.vbs to modify your script accordingly
* you can now specify by which percentage ReClock is allowed to slowdown or
speedup the played media. Defaults are 1% slowdown, 5% speedup
* when ReClock can not find a good media adaptation because refresh rates do
not match, it can now be allowed to try other values that will improve playback
anyway. The general rule is that if refresh rate x2 or x3 is compatible with
the frame rate, then we modify playback speed to better match frame rate (for
example play 23,976fps on 60hz at 24 fps which is 60/2.5). Vsync correction
will also be enabled and functionnal, but instead of operating on each frame
it will operate on each frame out of 2 or 3
* when builtin framerate and DirectShow framerate estimation do not give the
same result, ReClock will now use the result of builtin estimation which is
always accurate
* you can now prevent ReClock from loading with some players/applications. See
advanced settings in config app
* you can now force ReClock to be loaded in PowerDVD 5 (not tested with PowerDVD
4). See config app
* fixed bugs in the event notification that could cause reclock to not take
in account settings put by powerstrip, thus corrupting the timings database.
See RunEvent.sample.vbs to modify your script accordingly
* improved compatibility with video cards. In case ReClock is not compatible
with your card, it will not lock up anymore, but will notify you with an error
message inviting you to update drivers or uninstall ReClock
* improved NTSC DVD framerate detection (reclock was hesitating sometimes between
23.976 and 29.970 fps during high CPU load or chapter change)
* improved startup time (faster video hardware calibration)
* improved video hardware clock tracking
* improved option "Give high CPU priority to player" (will improve Vsync stability)
* ReClock will now produce more detailed information in c:\reclock_log.txt in
case of a crash. This will help me to investigate problems
* fixed a display corruption problem that could happen when using "Show Vsync"
* fixed issues with WMP9
* fixed flickering tray icon problem when opening Matroska media files
* fixed problems with vsync correction that could get confused by subtitles
and closed captions
* fixed a freeze introduced in 1.3 that could occur at startup
* fixed a problem in DirectSound handling
* fixed a rare problem where tray icon would not show and player would not quit
properly
* fixed a rare crash on player exit (would show with Media Player Classic sometimes)
* added a workaround for a bug in M-audio soundcards drivers that stopped playback
after 2800 seconds
* fixed an error in a formula given in the paragraph "How to optimize SPDIF
output" of the readme (thanks to Mars1 !)
* revamped the configuration application to occupy less space on screen (useful
when in TV mode)
* updated the NSIS installer for smaller setup size and setup corruption checkup
* DirectX 9 is now required to run ReClock
23/12/2003
- Version 1.3 available here
* depending on how the DirectShow graph was built, ReClock could
sometimes no detect that a video stream was present in the file. Thus it could
not determine frame rate in this case. Fixed
* fixed a problem with seeking not working with Elecard demuxer and HD MPEG2
files. There is still a problem with sound but this bug is not caused by ReClock
* compatibility with more video chipsets (should work with EPIA based hardware
now)
10/10/2003
- Version 1.2 available here
* changed the way media frame rate detection work. It can use DirectShow
builtin methods (like before), or internal methods based on frame presentation
to the video renderer (as DirectShow is not always accurate). Internal methods
being based on the VSync monitor, it is now enabled and can not be disabled.
I will not use the term "Vsync monitor" anymore, but "Vsync correction" for
the part of it that control the frame presentation to the video renderer. See
config app and readme for details
* features that are provided by the former VSync monitor are disabled on Win9x,
until i find why they crash on this OS. So you won't have DVD frame rate detection
or VSync correction on win9x systems
* VSync correction can now be enabled/disabled separately for VMR9 and other
video renderers (as VMR9 has some sort of identical mechanism that can fight
against ReClock). See config app
* added support for audio cards (like Vortex2) that don't support new WaveFormatExtensible
multichannel audio format. See "accept old multichannel formats" in config app
* ReClock can now be loaded in place of the default DirectSound/WaveOut Microsoft
audio renderers, even if the application request to load one of those. This
allow more players to use ReClock even if they don't want to (like Windows Media
Player for DVD, or Windows Media Center Edition). Be careful with this option
because it will tweak the registry, so you'd better use it only on a dedicated
PC. See config app to enable this feature. Also i had to remove the Enable/Disable
ReClock quick access menus that are incompatible with this modification
* properties panel now give informations about video size and format
* hopefully fixed audio dropouts that could occur when starting playback especially
with DVD
* fixed a random and nasty freezing problem that would happen when playing a
DVD (especially a NTSC DVD). As a consequence, frame rate detection for PAL
& NTSC DVD's is now based on internal methods only, so DXVA will be a problem
if you use it
* fixed another even more ugly freezing problem that could randomly happen just
after starting playback (especially with a DVD)
* fixed a bug that was causing garbled sound in PCM IEEE float format (especially
with .ogm files and also with AC3Filter)
* fixed DVD default frame rate entered in config app that was not working since
version 1.1
* fixed unwanted sound skips or pauses that could happen during playback while
switching between different frame rates that were compatible with the current
refresh rate (for example between 23.976 and 29.970 during NTSC DVD playback
at 120hz)
* added more media speed settings
* updated the readme with new informations (worth reading)
20/07/2003
- Version 1.1 available here
* ReClock does now support the full range of PCM
audio formats (8/16/24/32 bits PCM, and IEEE float PCM), with dynamic range
compression available in all modes (except SPDIF of course)
* you now have the choice to use either DirectDraw (like in pre 0.99k versions)
or Direct3D (version 0.99k and later) to gather clock information from the video
card. See config app for the settings
* the green tray icon will now flash between green/red when the clock correction
is not yet stable (until stability goes under 10 ppm). This warns you that playback
is not yet smooth
* modified ReClock to help HTPC users to obtain better results in SPDIF mode.
The FAQ on my website will be updated soon on how to do this (using Powerstrip)
- the properties panel now display the real video refresh rate detected by ReClock
(which should be very close to the refresh rate displayed by Powerstrip)
- changed automatic media speed adaptation, which is now based on this real
video refresh rate
- in SPDIF mode, ReClock will now display how many AC3 frames were dropped or
repeated
* automatic frame rate detection for NTSC DVDs (should detect 23.976 and 29.970
material), and more media files types (MPEG2 for example). You need to activate
the Vsync monitor for this detection to work
* ReClock will now give you an estimation of a media frame rate when it can
not determine it exactly (this will help you to choose frame rate manually)
* ReClock can now notify events to external applications using a Windows script
provided in the distribution (for example to change the monitor refresh rate
with Powerstrip). See RunEvent.sample.vbs in the ReClock install directory for
more explanations and a sample. To use it, rename it to RunEvent.vbs, modify
it for your needs, and don't forget to enable notifications in the config app
* solved a video refresh rate detection problem with GeForce2 Go chipset
* changed the video mode change detection method (when you change resolution
and/or refresh rate). This suppress the delay
* fixed a bug with properties not displaying properly in ZoomPlayer with multiple
audio streams
* added some sanity checks (some users report division by zero errors)
* updated the NSIS installer (old one was having trouble with big hard disks)
06/07/2003
- Version 1.00 available here
*
you can now choose if ReClock will be used as default audio renderer or not
with the config app. If you do not choose to use it as default renderer you
will have to specifically choose ReClock in your player (ZoomPlayer and Media
Player Classic can do that)
*
improved sound handling in PCM mode
* tweaked again pre-buffering time and latencies to be compatible with most
sound cards. Values are now 500ms, 20% latency for PCM and 5% for SPDIF
* better automatic media adaptation. ReClock will now try to make a speed match
for more "exotic" refresh rates
* improved system clock correction algorithm especially when a huge correction
is needed (for example when you create resolutions with a non round refresh
rate with Powerstrip)
* vsync monitor should now be compatible with win98/me
* vsync correction is now desactivated when "slave reference clock to audio
clock" is used, since it is useless in this case
* added new buttons in the config app to clean-up manually entered refresh rates
database and video timings database
* other minor improvements
01/05/2003
- Version 0.99k available here
* this version contains major changes and numerous bug fixes related with
crashing/freezing. To solve those problems, i had to switch to the Direct3D
API instead of DirectDraw to gather clock informations from the video card.
It helped solving those specific bugs :
- TheaterTek Player freezing with ReClock as SPDIF renderer
- crash with Overlay Mixer renderer and a DVD played with Cinemaster decoder
filter
- crash/lockup using the vsync monitor on Radeon videocards (instant lockup
with all players, all files)
- lockup sometimes during DVD playback (leaving menus or going back to menus)
* fixed memory leaks (thanks Gabest !)
* fix for sound muted
in SPDIF mode with Cinemaster audio decoder
* fix for crashing when changing resolution/refresh rate while reclock was playing
* fix for garbled display with vsync monitor and NTSC DVD playback
* vsync monitor is now disabled when using BSPlayer which is incompatible with
it (BSPlayer use a specific renderer filter)
* improvements to the vsync monitor. As it's no more considered experimental,
it is now enabled by default :)
* restricted media subtypes registered by the renderer (should speed up opening
files)
* logging is now disabled by default
* changed default audio pre-buffering time from 500 to 250mS
* many other things i don't remember
27/04/2003
- Version 0.99j available here
* finally fixed the problem with C-Media based soundcards and SPDIF
! To make SPDIF work, check "Use waveOut for SPDIF" in config app, and in the
C-Media mixer app, remember to enable SPDIF output and choose 2 channels mode
(just as you would do to enable SPDIF in WinDVD). I also suggest you to use
the latest reference drivers (6.43) available here
* The VSYNC monitor can now be controled directly from keyboard :
- SHIFT+CTRL+ALT+F9 will show/hide the monitor
- SHIFT+CTRL+ALT+F10 will enable/disable the tearing test mode
- SHIFT+CTRL+ALT+F11 and F12 will allow you to control the whished VSYNC position
window
* you can now lock "media adaptation" in the properties panel with a checkbox.
This prevent ReClock to choose a media speed if you don't want to
* as a workaround for the "no sound at all during playback" issue i have removed
some code introduced in version 0.99h that handled sound desync problems. I'll
put it back when i'll found a solution without side effects
* tray icon colors could be confusing sometimes. Now "green" truly means "all
is fine", "yellow" means "check you refresh rate", and "red" means "i didn't
found framerate"
* fixed a bug that could cause automatic media speed adaptation to be wrong
in some rare cases
* other small adjustements on reference clock implementation
30/03/2003
- Version 0.99i available here
* fixed no sound problem with ac3filter 0.66b,
and sound cutting problems with some media files
* completely rewrote the Vsync monitor. It is improved and now compatible with
DVD playback but still experimental. See configuration app and readme for more
informations
* added a switch to give high priority to the media player. It gives good result
on my system when i want to play a video with some background tasks
* fixed the properties panel truncation problem with large fonts enabled
* the renderer information is now correct in all cases (was wrong for example
in ZoomPlayer)
* fixed some problems when audio format was dynamically changed during playback
* more accurate informations in "media adaptation" group box
* other things i don't remember
15/03/2003
- Version 0.99h available here
* experimental and limited support for the correction of vertical sync and frame
arrival synchronisation issues that would give jerky playback sometimes. Please
see README for instructions
* more clever media speed auto adaptation (not milited to PAL/CINEMA/NTSC).
Any media with a refresh rate of X +/- 2% will be reclocked if X is a multiple
of the monitor refresh rate.
* you can now specify a default frame rate in configuration app for files on
which ReClock does not find frame rate.
* rewrote the sound sample drop/repeat algorithm. Hope it's better than previous
version
* fixed sound pitch or desync issues with some funny audio streams
* fixed sound volume knob not working in BSPlayer (and surely other players
as well)
* fixed a problem with input pin search by name (related to graph problems with
ZoomPlayer)
* fixed another problem with graph load/save in graphedit (you may need to remake
your ZoomPlayer graphs)
* experimental compatibility with Radeon interlaced modes used to drive directly
a PAL TV through SCART using VGA output (please see here)
* fixed a crash that could occur while reading a NTSC DVD
* no more creation of empty logfile when logging is disabled
14/02/2003
- Version 0.99g available here
* mostly fixed sound skipping problems when CPU is occupied with other tasks
* made sound pre-buffer size a setting in the configuration app. Default value
is 500ms (was 250ms in version 0.99f). Using a lower value will make seeking
faster but will make sound more prone to skipping. Also, latencies values are
now expressed in percentage of pre-buff time instead of ms. Installer of this
version will put default values of 20% (100ms)
* smoother clock correction code (hope nothing is broken ...)
* added a "mute sound" checkbox in properties to help handle multiple audio
streams (Morgan Stream Switcher does not work with ReClock)
* fixed a crash when seeking with PowerDVD audio decoder build 2417
* changed video card refresh rate detection code to better accomodate exotic
refresh rates created with PowerStrip
* fixed some sound skipping problems with SPDIF when using DirectSound only
* changed debug logging. Was causing CPU hog in some cases thus perturbing sound
(maybe because of some virus scanners that were scanning all the log each time
a line was added)
25/01/2003
- Version 0.99f available here
* fixed incompatibility in SPDIF mode with latest PowerDVD audio decoder (build
2417) and TheaterTek audio Decoder (Cinemaster)
* fixed the graphedit load/save problem (loading was not possible). However
the fix make ReClock incompatible with Media Player Classic when you use the
built-in audio switcher (ReClock won't load). If you use such a configuration,
please update MPC to version 6.4.2.2 or later which correct this
* fixed muted sound problem when streaming with DX9 and DirectSound
* added a configuration app which add many new features:
- you now have the choice to use either WaveOut or DirectSound for PCM or SPDIF
audio. For users with problems with SPDIF this may be a solution. For WaveOut
"hardware resampling" is not available
- you can choose what audio device is used for both WaveOut and DirectSound
- you can tune the maximum latencies for PCM and SPDIF output
- you can choose what video device is used for the video clock
- you can specify what default frame rate to use when reading NTSC DVD for which
the frame rate has not been entered
- you can enable/disable logging
* added a group box with video (overlay, VMR, etc...) and audio (WaveOut, DirectSound)
renderer informations
* small other fixes
16/01/2003
- Version 0.99e available here
* fixed problems with sound in AC3 SPDIF mode
(playback stopping, garbled sound when seeking media, sound desync)
* fixed a possible crash condition with DVD playback
* small other fixes
14/01/2003 - Version 0.99d available here
* now compiled using Direct 9.0 SDK but still compatible with DX8.
By the way i *HIGHLY* suggest you to upgrade your system to DirectX 9.0. I spent
many hours trying to figure out a bug using DirectX 8.1 which indeed was a DX
bug fixed by DirectX 9.0.
* the setting "disable clocks correction" has been renamed to "slave reference
clock to audio" and the code for this has been rewritten both for PCM and SPDIF.
Using this setting, ReClock will act much like the default audio renderer (ie
it will make its clock run in sync with audio), but with a much smoother clock
adjustement technique. It should allow a better playback of media files in AC3
SPDIF mode. But remember that using this setting will remove the anti-jerk capability
of ReClock (because the reference clock is no more synced to video hardware).
* the latency or fullness indicator of the properties panel has been replaced
by a sync indicator (0ms means audio is in sync, <0ms means audio is late, etc...)
for both AC3 and PCM output
* added video stream detection. Now, when no video is detected, reference clock
is slaved to audio, no speed adaptation is performed, and no sound resampling
is made. This ensure audio files are played properly without any artifacts.
* rewritten most of the sound buffering stuff. The SPDIFLatencyMin/Max registry
settings are gone. They are replaced by MaxLatencyPCM (for PCM) and MaxLatencySPDIF
(for AC3 SPDIF). Those latency settings are the maximum desync allowed for the
sound (in units of mS)
* pitch problem with sound wasn't completely gone with previous version. Should
be better now (but still not perfect)
* at last fixed the looping sounds problem with DVD playback (with ZoomPlayer
for example)
* added a frame rate cache in registry. ReClock will now retain manually entered
frame rates. Does also work for NTSC DVD
* added support for multiprocessor systems
* fixed a minor problem with the DRC when playing a new file
* changed tray icon colors behaviour (see readme)
* fixed a possible crash when hardware support was not sufficient to run ReClock
* fixed a crash with BSPlayer
09/01/2003
- Version 0.99c available here
* added a tray icon to display properties and change settings. Useful
on media players that do not give access to filters properties (like Windows
Media Player)
* fixed the pitch problem with sound when starting playback of a file (especially
DVD), or when seeking, or when changing speed. Also, sound clock correction
is now much smoother
* fixed refresh problems in property page
* changed the way frame rate automatic speed adaptation is made when AC3 SPDIF
is used. No media near 24 fps will be speeded up to 25 fps if refresh rate is
a multiple of 25 hz, because this was causing too much audio skips on SPDIF
output. The new rules for AC3 SPDIF are: near 24fps go to 24fps, near 25fps
go to 25fps, near 30fps go to 30fps
* fixed a registry load/save problem when multiple user accounts where using
ReClock on win2k/XP
* should be compatible with more soundcards in AC3 SPDIF mode
* added menu entries to enable/disable ReClock as a DirectShow filter
* added menu entries to enable/disable ReClock logging in c:\reclock_log.txt
* added "nearest integer frame rate" adaptation (ex: playing 23,976fps file
at 24fps or 25,002fps at 25fps)
* added registry tweaks to change the min/max latency in AC3 SPDIF mode. See
SPDIFLatencyMin and SPDIFLatencyMax in HKEY_CURRENT_USER/Software/ReClock/Config.
You can set values between 1 and 9 (one unit is 32ms). Default values are 1/4
* in AC3 SPDIF mode, "fullness" is now replaced by a latency indicator in the
properties page
* added a Donate button via Paypal :)
02/01/2003
- Version 0.99b available here
* corrected a huge memory leak in AC3 rendering mode
* made a workaround for a bug in the latest XViD decoder filter ("invalid floating
point operation")
* removed automatic frame rate detection for NTSC DVD, because i found no way
to distinguish 23,976fps and 29,97fps content. So it's better to let the user
choose
* other minor corrections
31/12/2002
- Version 0.99 available here
* added automatic frame rate detection for PAL & NTSC DVD discs.
Not tested for NTSC (i don't have any NTSC disc)
* experimental support for AC3 pass trough (using waveout interface). As AC3
cannot be resampled, i had to find another way to resync audio with video. This
version repeats or drop AC3 frames sometimes in order to stay in sync.
* once again changed registry format and clock estimation code to allow more
videocards to work (ATI Rage Fury)
* divided sound latency by 2 (allow faster seeking)
* startup of media files should be faster
* no more waiting when opening a new file when the media player is already open.
Very apparent when dragging a list of mp3 on WMP
* less reference clock jitter when clock correction is disabled
* successfully tested on win98
* fixed a lockup that occurred on slower PCs during clock estimation (<=800mhz)
* fixed another threading/deadlock issue that was occuring while opening a media
(DirectShow is a real nightmare you know)
* fixed a serious bug with DVD media that could cause the clock to stay uncorrected
* fixed a bug introduced in 0.98c that was cutting sound in some cases
28/12/2002
- Version 0.98c available here
* fixed another threading/deadlock issue.
It should solve some of the problems reported
22/12/2002
- Version 0.98b available here
* fixed a bug with Radeon videocards,
when ReClock confused NTSC and PAL in TV mode giving bad clock correction (this
could happen with other videocards too)
* updated the manual about tips on how to use ReClock with dual head videocards
(Radeon for example)
* fixed potential registry load/save problems
18/12/2002 - Version 0.98 available here
* tweaked the DRC and added some settings (light -same as 0.97-, normal, and
strong)
* fix for bug "playing an AC3 file without video in graphedit with AC3filter
give bad sound"
* fix for noises, clicks, or pops while seeking a media file
* fixed another threading/deadlock issue
* less cpu overhead in sound processing with hardware resampling
* the looping sound when accessing root menu on DVDs with Intervideo DVD Decoder
was not a ReClock issue. It has been fixed at least with Media Player Classic
(thanks Gabest) starting with version 6.4.1.3. BTW Media Player Classic is my
prefered player with ReClock, because it's simple, efficient, reliable, full
featured, and allow to use ReClock to resync DVD's
* other small bugfixes
* as ReClock use some modified GPL'ed source code, i now release them in the
package, and mention them in the about box
15/12/2002 - Version 0.97 available here
* added a checkbox to disable clocks correction. This disable all clock adaptation
capabilities of reclock. This way you see what are the effects of reclock on
video
* again rewritten completely the video clock frequency estimation code to work
around badly implemented video drivers (i815, Matrox) or drivers confused by
other software that touch videocards internals (TVTool with GeForce2/3/4). This
code has been tested successfully on GeForce and Matrox cards (thanks Jasmin
!)
* more accurate system clock correction
* fix for looping sound when accessing root menu on DVDs with CyberLink DVD
Decoder (for example in Media Player Classic)
However problem still exist with Intervideo DVD Decoder
* fix for freeze when changing resolution and/or refresh rate
* logging: this version will log in c:\reclock_log.txt. If you found a bug please
send me this log with your bug report. I'll remove logging in 1.0
11/12/2002 - Version 0.96c available here
* fix for non playable audio files (11025hz, 16 bits, mono), or audio files
that could have channels swapped
* fix for inaccurate video clock frequency estimation on slow computers, or
video cards with bugs in drivers (i815)
* should have less DirectSound overhead
* drc/hardware resampling are now save/retrieved in registry as global settings.
They no longer depends on each resolution/refresh rate
* comestic fixes
10/12/2002 - Version 0.96b available here
* fix for AC3Filter this time in 2 channels
mode
* fix for incorrect volume/pan restore when switching between hardware and software
resample
09/12/2002 - Version 0.96 available here
* added a combo box to enter manually
framerate when it cannot be detected
* added an option to do sound resampling with hardware insted of software
* really fixed (cross fingers) multi channel sound with Intervideo DVD Audio
Decoder
08/12/2002 - Version 0.95c available here
* fixed multi channel sound with Intervideo
DVD Audio Decoder
07/12/2002 - Version 0.95b available here
* fixed a deadlock bug that occured when
playing with sounds options within Media Player Classic
* fixed another bug when rate change based on frame rate was permitted when
frame rate was unknown
07/12/2002 - Version 0.95 available here
* added support for more than 2 channels
(multi-channel). ReClock can now render sound with 4 speakers, or 5.1 channels,
or whatever combination you want with more than 2 channels
06/12/2002 - Version 0.94 available here
* added dynamic range compression for
sound! You can enable or disable it with the properties panel. There is some
tweaking to do but it work quite nicely right now. DRC is not available on 8
bits sound (who cares ?)
* you can now change resolution or refresh rate while ReClock is running (for
tvtool users). It will then adapt to the new video clock rate properly
* revamped completely the sound correction code. This fix many problems (garbled
sound sometimes with some 1 channel 8 or 16 bits media, sound becoming crazy
when using manual override, etc...)
* fixed bug when rate change based on frame rate was permitted when frame rate
was unknown
* disabled ReClock on PC on which system clock is based on a processor counter
(ie multiprocessor systems)
03/12/2002 - Version 0.93
* more precise clock, and better ppm indicator
* added a workaround for microsoft bug Q274323 (http://support.microsoft.com/default.aspx?scid=KB;en-us;q274323)
* fixed a bug in clock compensation (only shows with some video cards)
* added more manual overrides
* combobox for manual overrides now retains its settings when you reopen properties
panel
02/12/2002 - Version 0.92 (first release)
* implemented missing volume/balance controls
on filter (IBasicAudio interface)
* 8 bits sound support
* better range for resampler (support playing from 0.1x to 10x)
* added a combobox for manual override in 'media adaptation' group box
* better system clock sync after reload from registry
* small bug fixes
Little FAQ:
Q: How can i use ReClock with a dual head videocard ?
A: First of all, if you have a dual head video card (a card capable to display
different images on your monitor and on your TV at the same time like a Radeon
for example), setup your TV as the primary display. Don’t use cloning, or theater
mode. Then activate TV-out.
If your card needs a utility (like TV Tool), launch it and activate TV-out.
Then, launch your media player and open a media file, and check that the hardware
video refresh rate detected by ReClock is:
- 50 Hz if your TV is in PAL
- 60 Hz if your TV is in NTSC
If the refresh rate detected by ReClock is not equal to the refresh rate of
your TV, then either your TV is not your primary display, or ReClock is not
compatible with your video card.
Important notice: if you need to adjust the size or the position of the TV image
with the control panel of your video card (or TV Tool), remember to quit and
restart your media player after you have made your adjustments, because ReClock
will need to estimate how the hardware video clock has been affected. If you
don’t do that, you will experience jerky playback.
As of now ReClock is known to work fine with the following cards:
- GeForce 2/3 cards with TV Tool, or with built-in drivers
- Radeon cards with built-in TV-out
Q: Why is hardware resampling not recommended ?
A: Because some sound cards have limited support for frequency ranges in
hardware resampling (the Hercules Fortissimo II for example). But if your sound
card can handle it properly, it will give you optimum quality sound.
Q: Is Reclock compatible with Win 98 ?
A: It has been reported that versions 0.98b and higher do work correctly on
Win Me. They should work on Win 98. However VSync correction is not yet possible
on Win 98.
Q: How can i use ReClock
with my DVDs ?
A: Either use Media Player Classic or ZoomPlayer. Media Player Classic will
automatically use ReClock. In Zoom Player 3, go to options->DVD, then choose
"Customized", and select "Reclock Audio Renderer" in the
audio renderers list.
Q: Which DVD filters are
compatible with ReClock ?
A: Most of them should be. I have tested AC3Filter, WinDVD, PowerDVD, NVDVD,
Elecard, and Cinemaster filters successfully
Q: ReClock does not load
with BSPlayer ?
A: Maybe it's desactivated. Go to Options->Preferences->Audio. In Output device,
either select "default" or "Reclock audio renderer".
Q: ReClock does not load
with ZoomPlayer 3 when i play a DVD ?
A: Go to options->DVD, then choose "Customized", and select "Reclock
Audio Renderer" in the audio renderers list
Q: How can I optimize playback
with SPDIF output ?
A: A method is given in the readme.
Q: ReClock does not load
with ZoomPlayer 3 when i play a DIVX ?
A: Go to Player options->Manual filters, then highlight "ReClock Audio Renderer"
in the "Custom Audio Devices list", and don't forget to check "Custom
Media Audio".
Q: My DIVX has more than
one audio track, and reclock play all the tracks at the same time giving multiple
icons in the system tray. What can i do ?
A: You will need to use either Zoom Player 3 or Media Player Classic. In Media
Player Classic, go to Options->Audio and check "Enable built-in audio
switcher filter". Zoom Player will automatically select only one stream
(you can then switch audio tracks with the right-click menu).
Q:
Which video cards are compatible with ReClock ?
A: Help me to construct the list! ReClock is at least known to work on Matrox
G200, GeForce2/3/4, Intel i815, ATI Radeon, Xabre, Voodoo 5500, and ATI Rage
128
Q:
Which video cards are incompatible with ReClock ?
A: The Voodoo 3 is known to have problems
Q:
I get the following error : "Load library (C:Program File/Reclock.Reclock.ax)
failed >> GetLastError returns 0x0000001f"
A: You must install DirectX 8.1 or later to run ReClock
(c) OGO 2002/2006 Contact
: see the readme in the distribution to get my e-mail adress or contact me in
the forums of www.doom9.org or www.avsforum.com