ReClock DirectShow filter : try it !

[telexxingou]

@ogo :
below your request when reading divx AC3 on cmedia wave render :
wformattag : 146
nchannels : 2
nsamplespersec:48000
nAvgBytePerSec:192000
nBlockAlign: 4
Fréquence : 1.00

hope it'll help you and me lol

ps :i'm french too , if you want to ICQ with me for testing or other , mail me to telexxingou@hotmail.com

A+: )

[Jorgosch]

I'm sad to report that on my computer Reclock does exactly... nothing.
I have a ATI Radeon8500 derivate and a SB Live! value.
Filter never loads. When I try to set Monitor 1 to TV, my system wreaks havoc and is totally unpredictable. Tried disabling TvOut, didn't help.
*sigh*

[Airw0lf]

Jorgosch - what are you using to play your media files? Not all players will be able to access reclock. In my case, I can't use PowerDVD to watch DVDs with ReClock. But if I use ZoomPlayer and specify that I want to use ReClock with DVD playback, then I am fine. You can also use windows media player with ReClock. In the new version you will notice the tray icon as soon as the filter loads, so it's easy to check up on. Lastly, some people are having trouble with the latest BSPlayer, so I would stay away from that for now.

[Jorgosch]

I had tried ZoomPlayer, Media Player 6.4, Media Player Classic, PowerDivXNextGen and PowerDVD.

[Jorgosch]

Ok, since I seemed to be the only one having problems, I had another, closer look at ZoomPlayer. It actually worked when I set the following options:
In -> Player Options -> Manual Filters :
- Button REFRESH LIST (Reclock appears in audio filters)
- Use custom audio in Media and DVD mode
- Manual Filters: Using Filter File (Was "Auto by extension" before).

Now I have to go and check the benefits, especially with my ac3filter... see ya :-)

[Airw0lf]

Jorgosch - yup, if you're watching a *DVD*, that's what you need to do in Zoom Player. PowerDVD flat out won't work as far as I can see. But for general .avi, .mpg files, reclock will activate itself in media player or zoom player...

[Jorgosch]

Well, it didn't activate by itself, that's what I've already told you.

[sillKotscha]

sidenote:

reclock works as well if *.cda tracks (music CD's) are played

[kallekill]

I'm having problem with a mpg-movie captured from tv at 29.97 fps. When I play it reclock resamples to 30fps but sometimes the audio repeats and you get desync sound of several seconds.

[LaFouine]

YES ! BRAVO !

With 0.99c I finnaly get no more sync problem in AC3 passtrough mode !
So great job ! Thank you very much !!

[ogo]

Next version of reclock will be out tonight (had no time yesterday to do it). It has many changes in sound to fix problems (AC3, ZoomPlayer in DVD mode) and add new features (frame rate cache, SMP support, better handling of files without video) ...

I'll do a review of your questions tomorrow

In the meantime, if you have problems send me your logs, and tell me in your email what is your nickname in the forum so i can respond you

[ms]

Hi,

First of all: reClock is great! Keep working on it.

I've read the discussion about SPDIF/AC3 output and reclock with great interest.
I have tried reclock with analog audio output and I was very happy about the results . The problem is the AC3 output. My external decoder mutes audio for about one second if a AC3-frame is dropped or duplicated. So SPDIF/AC3 output is useless for me . I thought about the problem of the impossibility to do a AC3 sampling rate conversion (without a complete ac3 decompression and compression).

I think there a 3 ways of playing a movie with AC3 digital output:

1. The "normal" Windows way: duplicating or dropping video frames to stay sync with the audio -> jerky playback

2. The "reclock way" : duplicating or dropping ac3 frames (yes, ac3 also has frames ) -> bad audio playback

3. My idea: adjust the framerate of the video to the exactly needed speed and play ac3 stream at the original audio speed.

I known that my way would need much more cpu power (because ajust means not only duplication oder dropping frames, it means rerendering the movie).
I have written a small programm in C++ which does framerate conversions with AVI files without jerky playback (because frames are interporlated). The algorithem runs fast enought to handle a realtime conversion and it is not optimized (MMX...). Of cause I loose a bit picture quality, but it is nearly not visible (tryed with DVD-source material).

Can that be a way to achieve smooth audio AND video playback ??

If you are interested, I can send you the EXE and/or source code.

Greetings

MS

PS. Sorry for my bad school english, I hope you unterstand what I mean...

[Jorgosch]

3. My idea: adjust the framerate of the video to the exactly needed speed and play ac3 stream at the original audio speed.

Excuse me if my question is silly but isn't this exactly the microsoft way? :-)

[ms]

3. My idea: adjust the framerate of the video to the exactly needed speed and play ac3 stream at the original audio speed.



Excuse me if my question is silly but isn't this exactly the microsoft way? :-)

No,it's different.

Example: Refresh rate of your screen is 75 Hz. You have a movie encoded at 24 FPS. But we need 25 FPS (because 25*3=75) to avoid tearing.
If we can not speed up the playback (because of the AC3 problem), we have 2 possibilities:

1. simply duplicate on frame -> jerky (windows way)
2. modify all 24 frames an insert a fitting 25th. ->smooth playback

The 2nd needs much cpu power. But it is possible to reduce the needed cpu power when you only recalcualte some frames (for example 2 before and 2 after the inserted frame).

MS

[Jorgosch]

See, and that's the reason I became a lawyer and not an engineer :-)))

[Sumster]

MS..

I think when ogo releases his next version tonight, you will see a solution to your problem. I noticed the same things as you, but ironically, if you use a more accurate audio-based clock so that just the framerate is adjusted, the stuttering disappears.

However, just slight changes in the framerate (eg. 23.976 to 24.05)according to the audio are enough to make playback completely smooth even if the framerate IS NOT a multiple of the refresh rate. I don't think the entire video stream has to be processed in order to achieve slight changes in framerate.

Just my two cents worth... OGO, can't wait until you next release!

-Sumster

[ogo]

Ok guys, version 0.99d is out on my website. Please see changelog for bug fixes and new features.

Sound internals have been reworked especially for AC3. It's still not good but better i think the PCM renderer is also better !

ms, this new version implements your point 3 but smarter than windows. Perhaps it is your solution See "slave reference clock to audio" setting in properties panel.
Frame rate interpolation would be a good idea, but would require another filter just before the video renderer. Quite a lot of work (i think video interpolation require motion estimation, etc ....)

Cheers!
OGO

Edit: i highly suggest you to install DX9 to use this version of ReClock

[Chibi Jasmin]

Thanx again for another version of your great tool...still working fine!

[Sumster]

OGO!

Amazing work! I upgraded to Catalyst 3.0 and DX 9 before using.... excellent! I've now tried my most difficult DIVX files and DVD's and no problems whatsoever! Absolutely smoooth video in Audio-Slave mode, despite framerate not being a multiple of refresh.

There are still one or two AC3 dropouts/repeats I can hear, and they are present in the LOG file as well. Likely due to my system doing things in the background rather than reclock (eg. I could manually create tons of them if I scrolled up and down the LOG file with a movie playing).

I tested it with both AC3 and DTS streams... no problems.

THANKS AGAIN! I would say this is worthy of a 1.0 label!

-Sumster

[kallekill]

Did a fast check with the latest Reclock and the repeating sound problem I had seems to be fixed. Didn't upgrade to directx 9 though, because I have heard that it is full of bugs and not ready to be released. A friend of mine had to reinstall windows after installing directx 9. just a word of warning.