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Old 14th May 2005, 16:05   #1  |  Link
cedocida
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Announcement: New open source DV codec (VfW)

Cedocida DV Codec
===================

*** Current version is 0.2.3 (2012-Sep-27) ***
Official Homepage is here:
Cedocida DV Codec

Latest Binary is here:
http://www.cithraidt.de/cedocida/ced..._0.2.3_bin.zip

Features:
- supports encoding and decoding of: DV, DVCPRO25, DVCPRO50
- supported formats for in- and output: RGB, YUY2, YV12 (PAL-DV / MPEG2-I / MPEG2-P)
- direct YUV-4:2:0 output when using "YV12 PAL-DV" option
- optional forcing of selected input and output format
- settings for picture quality and compression methods

New in Version 0.2.3:
- added support for DVCPRO25 and DVCPRO50
- reworked VfW driver code
- fixed settings on Win7 x64

Last edited by cedocida; 3rd October 2012 at 11:00. Reason: new version 0.2.3
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Old 14th May 2005, 16:54   #2  |  Link
Guest
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Thank you for your generous contribution! Open source codecs are always very gratefully and enthusiastically received.

Can you please advise about the schedule for NTSC support?
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Old 14th May 2005, 19:46   #3  |  Link
communist
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Great stuff

Any possibility for a binary?
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Old 14th May 2005, 21:51   #4  |  Link
guada 2
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The good ideas are always the welcome.

Thank you.
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Old 15th May 2005, 17:56   #5  |  Link
WorBry
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Cant get it to install. Right click > Install on the cedocida_DVSD in the Release folder throws up an error:

"Setup cannot copy the file Cedocida.dll"

and

"Ensure that the location specified below is correct, or change it and insert 'Cedocida DV Video Codec' in the drive you specify"

I dont understand this statement.

The auto-selected path was "C:\Program Files\cedocida_0.1.5\Release" and I cant see a Cedocida.dll file elswhere in the directory.

Also, if I do manage to install it, can I assume that it will be possible to disable the codedc and swap it for other DV codecs using VCSwap?

Thanks.
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Old 15th May 2005, 18:58   #6  |  Link
cedocida
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@neuron2
Quote:
Can you please advise about the schedule for NTSC support?
hmm, it is on the top of my todo list but i can't promise that it will be available in the next weeks. The core encoder is the same, but the 4:1:1 color format and the position of blocks/superblocks is different and has to be written.

@communist
Quote:
Any possibility for a binary?
because of patent/license issues i will not publish a binary on my Homepage. Hope you find someone who can compile it for you.

@WorBry
Do you have compiled the source? The file cedocida.dll is not part of the zip-file and will be created if you compile the sourcecode. The installation is the same as by the panasonic-codec. If you can swap this one, it should also work with cedocida-codec.
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Old 15th May 2005, 19:08   #7  |  Link
WorBry
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I've never compiled anything before, so I think I'll pass on this one. Thanks anyway.
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Old 15th May 2005, 20:08   #8  |  Link
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neuron2 to the rescue! Here's the compiled DLL and an INF file:

http://neuron2.net/misc/cedocida015.zip

I tested it just a little but it appears to be working.

Last edited by Guest; 15th May 2005 at 20:12.
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Old 15th May 2005, 21:56   #9  |  Link
guada 2
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" neuron2 to the rescue! " ( NEURON2 )

Good work "brother" Neuron2
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Old 16th May 2005, 12:18   #10  |  Link
WorBry
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Thanks Neuron2. First impressions with a few Pal Type II DV test clips - good quality decoding and appears to be free from the slight "color bleed" that I have observed with every other DV software codec bar Matrox and Sony. My main interest is in compressibility on (filtered) conversion to MPEG4 (DivX Fusion, mostly)and VP6. Until now the Sony DV codec has been my preferred decoder but it upsamples to RGB and requires luma shift adjustment after conversion to YUV color space. I'll run some bitrate vs quality metric comparisons with Cedocida as decompressor when I have a moment. Thanks again A.Dittrich and Neuron2. Where would us users be without your inventiveness.

PS - confirmed that Cedocida can swapped with other DV codecs without any problems using VCSwap.

Last edited by WorBry; 16th May 2005 at 12:26.
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Old 17th May 2005, 18:38   #11  |  Link
communist
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First of all thanks for the great codec

Works fine here - except YV12-Output via AviSynth. Wether keeping the default or forcing the codec to output YV12 (PAL-DV and both MPEG variants) gives me weird colors. Can anyone confirm this? Adding SwapUV() corrects the problem.

Forcing other colorspaces works fine with AviSynth and Info() reports them as such correctly.

/Edit here is sample of the file I'm trying to frame-serve

Last edited by communist; 17th May 2005 at 18:42.
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Old 17th May 2005, 19:16   #12  |  Link
WorBry
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Communist,
Yes, I can confirm the weird colors (blue hue) you describe when frame serving Pal Type II DV clips loaded in AVISynth as AVISource, but only with the default codec settings. Selecting "force output format" corrects this, irrespective of the selected color space (RGB, YUY2 or YV12).
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Old 19th May 2005, 08:18   #13  |  Link
cedocida
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Your right, i also can confirm this bug.
As you allready said, it's a color swap of U and V component. It should only affect the YV12 output modes. I will release a fix at the weekend.
Thanks for your reports and to Neuron2 for providing the binary.
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Old 21st May 2005, 08:12   #14  |  Link
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How does it compare to the ffdshow DV decoder?

I reencoded something to mpeg2 (avisource was type II dv) for a DVD and the filesize was slightly smaller with this new codec. 1768679 instead of 1770134 KB. The quality looks great on my PC's monitor. I still have to see how it looks on my tv.
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Old 22nd May 2005, 15:20   #15  |  Link
cedocida
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*** released new version 0.1.6 with NTSC support ***
now it's a fully working DV Codec.

Sourcecode available here: Cedocida DV Codec (sourcecode)

changes:
- add: encoding and decoding of NTSC video
- fixed: bug concerning U-V-color-swap of YV12 encoding/decoding

some remarks on "YV12 (DV)" input/output option in combination with NTSC video: this format is direct data to or from the compression algorithm and will not be converted, shifted or interpolated. Because NTSC DV uses a 4:1:1 sampling grid, you will see weird color when viewed with a normal YV12 program which assumes 4:2:0 - this is no bug. If you need YV12 format, use the option "YV12 (MPEG2 *)".

- Andreas -
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Old 22nd May 2005, 16:58   #16  |  Link
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Binary is here:

http://neuron2.net/misc/cedocida016.zip
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Old 22nd May 2005, 17:35   #17  |  Link
SeeMoreDigital
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Quote:
Originally posted by neuron2
Binary is here:

http://neuron2.net/misc/cedocida016.zip
What a nice man!

What do you think of this new codec?


Cheers
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Old 22nd May 2005, 18:32   #18  |  Link
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Andreas is the guy to praise! I'm making the binaries for myself so why not stick them in my misc dir for everybody?

This NTSC version just came out so I will hold off commenting until I test it. So far, so good, however!
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Old 31st May 2005, 21:37   #19  |  Link
Longinus
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Hello!
Your codec is really nice, we really needed a good open-source DV Codec..
The only thing I noticied is that it creates more artifacts than the Canopus codec, for instance (even in the high quality mode).

It's just me, or did you noticied it too?
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Old 1st June 2005, 10:32   #20  |  Link
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I found the quality to be very good. Thanks to Andreas and to Neuron2 for the compile!
My experience is with PAL, I created a high quality DVD (KDVD actually) from my DV footage. The final filesize was slightly smaller than when I used the ffdshow dv codec, I noticed. I didn't see any more artifacts than with ffdshow - I didn't see any actually.
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