View Full Version : Need a good lossless codec
2ZOD.COM
8th October 2003, 04:57
I'm currently using HuffyUV, but I get dropped frames when the screen goes blue for more than a few seconds, and iuVCR crashes. Other than that the codec is awesome. The website for the codec went down and the web page gives an error about how the teacher doesn't work there anymore. I wanted to contact the maker of it, but obviously, they're unreachable now. When that doesn't work I used Morgan MJPEG, it seems to work well, but I would really like a lossless codec.
So, any good suggestions?
BTW, the dropped frames isn't because my computer, it's an Athlon XP 2500+ with 512mb of PC3200 DDR, the cpu ussage is usually under 10% when capturing with HuffyUV.
Angelus
8th October 2003, 13:57
Actually I think it is your hardware...It may be your hard drive that is causing you to get so man dropped frames. I recently got a 200GB 7200 RPM drive with 8mb cache and now i can capture full NTSC resolution (720x480) with few or no dropped frames. My old hard drive was a lot slower and had less capacity. As for another lossless codec, i'm not sure.
Krismen
8th October 2003, 15:39
Hi
You can try AVImszh:
http://www.geocities.co.jp/Playtown-Denei/2837/prg/LCL223.ZIP
2ZOD.COM
9th October 2003, 04:04
That wouldn't make any sense for my hardware to cause the program to crash, because my "old" hard drive is a 7200rpm Maxtor, which can transfer about 30MegaBYTES/sec, seeing as how most video is under 10MegaBITS (8 time smaller than bytes) the hard drive would have nothing to do with it. If my hardware was failing like that anyway my computer would probably restart itself, and not just close the application.
Krismen..
Thanks, I'll try that stuff out. Judging by the bit I read from the readme file it looks like it's perfect. Thanks again.
Boulder
9th October 2003, 07:37
The dropped frames shouldn't be caused by that hardware. I used to do full PAL captures, compressed with HuffYUV, on a TB1400 and a 60GB 5400rpm hard drive. No drop frames unless the source was bad (=a VHS tape in a bad condition).
Piper
10th October 2003, 16:26
I'm curious, anyone actively using VBLE for routine captures? I had played with it for a while and was quite impressed. It's slower than Huffyuv, but not to the point where it was unusable. Using a YV12 codec for capturing is interesting as it can potentially reduce the number of colour conversions in AVS scripts. Depending of course which filters you're using.
Boulder
11th October 2003, 15:15
I remember that there were some unanswered questions raised, you know, MarcFD used to code-and-forget quite a lot:D
If you encode with CCE or TMPGEnc, YV12 is not the answer so I'm using MJPEG at the moment.
ppera2
11th October 2003, 15:58
Originally posted by Krismen
You can try AVImszh:
http://www.geocities.co.jp/Playtown-Denei/2837/prg/LCL223.ZIP
This is damn slow, not for capturing any reasonable res.
Piper
11th October 2003, 18:34
@Boulder
Why not use YV12 when encoding to TMPGEnc? I've found it works as well as ConvertToRGB() when using a Huffyuv YUY2 source. Is there something I overlooked?
Didée
12th October 2003, 03:22
Originally posted by Piper
I'm curious, anyone actively using VBLE for routine captures?
Yup, me.
- Didée
Boulder
12th October 2003, 10:23
Originally posted by Piper
@Boulder
Why not use YV12 when encoding to TMPGEnc? I've found it works as well as ConvertToRGB() when using a Huffyuv YUY2 source. Is there something I overlooked?
Well, I mostly use CCE these days and it wants the source in YUY2 so I don't need to do a colorspace conversion.
As you said, with TMPGEnc it's just the same whether you use YUY2 or YV12, the material is fed as RGB24 anyway. However, the filesize difference is very small as YUY2 compresses better than YV12 so that's not a strong point IMO.
Also the fact that PeachSmoother requires YUY2 makes the decision easy to me. I've also had lots of problems trying to capture to YV12 with the Hauppauge WDM drivers, green lines all over the video, so I've given up the idea. The BTWinCap drivers work fine with YV12 but as the sound is mono, that's a no-no:)
WildCelt
14th October 2003, 17:17
I was using vble for captures, and it wasn't going very well. Check here (http://neuron2.net/ipw-web/bulletin/bb/viewtopic.php?t=193) and here (http://neuron2.net/ipw-web/bulletin/bb/viewtopic.php?t=169) for the discussion about it (the vble stuff is about halfway through the first thread).
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