| 28 Jul 2005 02:02 am |
whoisit98 Guest | Guys, I been trying all the techniques on this forum to try and get my Vivitar DVR390H to play divx files converted to its format, I have been able to get the thumbnail to appear when in MP4S codec, but it wont play, I dont know if I need the video to be in M4S2, or if its the audio thats the problem... when I try a divx to convert it to asf, it wont convert..
Any help much appreciated...
PS: I’m trying power video converter now... but looks like it needs a crack...
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| 29 Jul 2005 10:59 am |
metoo Guest | I am trying 3gp_converter .I get a good picture but an annoying background sound.
I set acodec as adpcm_ima_wav
Can anyone tell me if the IMA ADPCM encoder of ffmpeg has a bug?
Thanks
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| 03 Aug 2005 11:33 pm |
whoisit98 Guest | meetoo : have u got a vivitar dvr also? if so then I guess its just the audio that isnt working properly on mine, but then again i tried a clip that had no audio...
anyone else got the vivitar?
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| 04 Aug 2005 02:09 pm |
naz Guest | hi how the hell do plays films on the cam? just give me simple instructions please.:-)
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| 04 Aug 2005 02:10 pm |
naz Guest | i hav this cam 2 but i wach films in it. how do i do it?
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| 04 Aug 2005 02:15 pm |
naz Guest | heres my email so if u guys find out u can tell me thanx :-) amigoss@hotmail.co.uk
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| 04 Aug 2005 05:14 pm |
Spin Guest | I have the AIPTEK IS-DV
Kingbee’s tutorial worked PERFECT!
HOWEVER...
...One very slight problem, and I haven’t tried plugging the camera into a television yet, but the 640x480 on the camera screen looks very pixeled.
I wonder if I can improve it.
I have used Ulead Media Studio 7.0 to create a perfect 640x480 ASF file, but no workinbg audio. Only the video plays on the camera.
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| 04 Aug 2005 06:31 pm |
Spin Guest | AIPTEK IS-DV
Okay, I still keep getting poor video quality for a 640x480 format. Too pixelualyed looking. I know the camera does better than that.
So I tried a few things. I know that the camera puts out 11.025kHz 4 bit mono So I tried that setting. I tried PCM and IMA ADPCM and there is no difference. I changes the RealMagic settings to 1172kbps (instead of the 50kbps) and still no difference. I tried Constant and Bilinear and no dofferenfce.
I tried all of the above in VirtualDub and in Uleda Media Studio and still no difference.
I get good sound and crappy video.
My final conclusion, RealMagic works perfect, but somehow the VIDTOASF.EXE is losing picture quality during the translation.
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| 04 Aug 2005 07:31 pm |
Jodoman Guest | Well Well Well......
By following the guide, I get
Shitty Sound(with bumps and screeches, etc)
and Great video (aside from the occasional psychadelic frame)
if ima adpcm and pcm sounds work the same in the camera, then why the hell dont we just use WME to encode on the native iso mpeg 4 codec as opposed to hacking and ripping?
Maybe we all are using downloaded simpsons episodes with crappy bitrates. Maybe someone should rip a dvd scene and encode it. See if that makes a difference. Im just tossing ideas here, but i dont have time to do them. Post back if any of them work.
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| 04 Aug 2005 08:09 pm |
Spin Guest | RIPPED SCENE...
http://mysite.verizon.net/vze3nvj6/Blender/aiptek.zip
See if this works on your camera. It works on mine, but still has the pixel looking quality.
OH, for some reason I can’t see video on my PC, but I DO see video in the camera.
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| 05 Aug 2005 08:39 am |
The Kingbee Guest | Hello all, its good to see this thread is still alive. To answer the question many of you have about the picture quality.
I have come to the conclusion that no matter the source or the bitrate (unless it was really bad to begin with) the video will look slighty pixlelated.
This seems to be because we are adding externally created video to the camera for playback. Unlike most PC media players that resize the actuall dimensions of the video, the camera does not seem to do this. It seems to just playback the video as is if there is more pixle information (640x480 vs. 320x240) then pixture looks a little better despite the small size of the screen.
Unfortunatley I do not think increasing the resolution beyond 640x480 will make any difference because the camera’s (most I assume) do not nativley record in a higher resolution. (Don’t hold me to this, as I have not actually tested this)
I hope I didn’t lose any one with my post, hopefully it cleared up some things.
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| 05 Aug 2005 09:58 am |
Spin Guest | The Kingbee I am working in this too. I have been rippiing de-muxing and burning for years.
My idea is, if the camera can record the ASF (in realtime infact), then the ASF be downloaded and upload to the camera, the PC surely can do the same thing, somehow.
How can a piece of $97 crap Aiptek camera (mine is CRAP! falling apart already) churn out the ASF file And my $700 PC can’t do that?
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| 05 Aug 2005 12:21 pm |
The Kingbee Guest | Spin my only guess is that the creation of the ASF is done purely by hardware. And as you probably already know hardware is ALWAYS faster the software. It’s kinda like how PC’s needed a hardware DVD decoder back when the format was new and PC’s hadn’t yet reached 1Ghz. The processor load was was too much for a software decoder. Now a days its not a problem for software, and many modern graphics card have native MPEG-2 decoder built in.
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| 05 Aug 2005 12:50 pm |
Spin Guest | "hardware DVD decoder” I remember those days.
I find that if I change the quantizer MAX to 4 it does a better job, but not perfect yet.
I am getting there.
I have a perfect picture when using Windows WMV encoder, but no sound at all, because Windows codec for that doesn’t have 11kHz 4bit option.
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| 05 Aug 2005 01:38 pm |
naz Guest | wat u actualy made it work but crapy?
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| 05 Aug 2005 01:39 pm |
naz Guest | i realy suck at this im getting no wer my cam says no files to play we ther is
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| 05 Aug 2005 01:41 pm |
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| 05 Aug 2005 02:37 pm |
Spin Guest | DOWNLOAD THIS VIDEOCLIP....
http://mysite.verizon.net/vze3nvj6/Blender/AiptekClip.zip
Tell us what happens on your camera.
Tell us what brand of camera you have.
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| 05 Aug 2005 10:11 pm |
Jodoman Guest | well.... the solution is quite simple. ASF CONVERTER SUCKS!
We need to use another program that makes asf files, but also provides the codec. This leads us back to square one: using WME. We can encode on the native ISO MPEG 4 codec AND create an asf file (officially, it is WMV, but by changing the extension by compressing the video into a zip file and renaming it as X.asf, we do our own asf conversion). It works fine. However, as we all know, WME does not allow any audio codecs besides WMA. The solution is to find a program that can multiplex (merge sound with video) the asf video with the wav codec. This is necessary to bypass the faulty asf converter provided by
Bill Gates, Inc. BTW, Instead of multiplexing audio, we could also just use the WMA codec, and try to change the codec by hacking it through XVI32 and replacing whatever WMA is with a wav codec. Im not sure how to do that, though, because I lack experience in hexidecimal and text encoding. But would it be possible? Someone should know.
Another solution would be finding a program that allows asf/WMV conversion by using the needed codecs. But thats a looooong shot. Like the Devil Rays winning the Pennant.
In response to Kingbee about hardware decoding:
At some point, we have to consider the chicken and the egg paradox. On one hand, dvds were decoded by hardware, but on the other, they were made through software. I believe 100% that if the asf files we need to convert exist, it is possible to convert them. Its just a matter of how. Because even hardware is run by software 
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| 05 Aug 2005 10:38 pm |
Spin Guest | Jodoman,
You said it! We know what we want, but can’t get it so easily.
I have tinkered with an ASF file created by the camera (using Hex Edit), and I see a few things in there.
All we need to do is convert the audio somehow. I thought of hacking with Windows' audio settings by maybe adding the option (or profile that we need), actually forcing it, but I don’t know how to do that. Possibly add a few other entries into RegEdit or something like that?
Its just an ASF file. I even recorded a 1/2 second of bare bones video just to see what HexEdit reveals. I don’t know...
There has got to be some brainiac out there to fix this crap. The camera is probably not worth the hassle. I’ll buy one that uses quicktime, I hear they are better.
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