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| rmanal |
| Posted: Jan 15 2012, 10:38 AM |
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Advanced Member
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Hello,
I have a DV file with size 720x480 but with SAR: 3/2, PAR: 8/9, DAR=PAR*SAR:4/3.
But when I open it in VD it displays a 720*480 file with square pixel: so how to tell VD to use SAR and PAR informations instead of resizing the file with another method inducing a degradation of the quality?
Thank you
Rmanal |
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| stephanV |
| Posted: Jan 15 2012, 10:41 AM |
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Spam killer ;)
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You can't. Signalling DAR/PAR is up to the codec. You will have to set this manually when you export in the codec settings..
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useful links:
VirtualDub, Input plugins and filters, AviSynth, AVI-Mux GUI, AC3ACM by fcchandler, VirtualDub FAQ |
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| rmanal |
| Posted: Jan 15 2012, 05:12 PM |
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Advanced Member
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OK thank you. It could be an improvement as this information is essential in the visualization of the video.
Nevertheless I don't how to set it manually: could you give me an exemple please, with one codec?
Thank you |
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| stephanV |
| Posted: Jan 15 2012, 07:24 PM |
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Spam killer ;)
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| QUOTE | | OK thank you. It could be an improvement as this information is essential in the visualization of the video. |
It is not possible to make it because VirtualDub does not control codec settings.
| QUOTE |
Nevertheless I don't how to set it manually: could you give me an exemple please, with one codec? |
Depends on what codec you are using.
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useful links:
VirtualDub, Input plugins and filters, AviSynth, AVI-Mux GUI, AC3ACM by fcchandler, VirtualDub FAQ |
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| rmanal |
| Posted: Jan 16 2012, 06:30 PM |
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For codec exemple, DIVX? |
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| stephanV |
| Posted: Jan 16 2012, 08:26 PM |
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Spam killer ;)
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Video Tab > Format Out
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useful links:
VirtualDub, Input plugins and filters, AviSynth, AVI-Mux GUI, AC3ACM by fcchandler, VirtualDub FAQ |
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| rmanal |
| Posted: Jan 18 2012, 07:35 AM |
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Advanced Member
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OK but in a DV file we have SAR= 3/2, PAR= 8/9. And in this video tab we can only set a PAR. So how to also set the SAR in order to retrieve a correct 4/3 file format?
Thank you |
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| stephanV |
| Posted: Jan 18 2012, 05:27 PM |
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Spam killer ;)
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What you mean with SAR is just horizontal resolution divided by the vertical resolution. There is no reason to explicitly set that.
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useful links:
VirtualDub, Input plugins and filters, AviSynth, AVI-Mux GUI, AC3ACM by fcchandler, VirtualDub FAQ |
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| rmanal |
| Posted: Jan 21 2012, 10:22 AM |
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Advanced Member
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SAR is the stockage aspect ratio, in the case of DV it is equal to 1.5: if you don't take it into account how to retrieve a 4/3 ratio? |
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| stephanV |
| Posted: Jan 21 2012, 01:45 PM |
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Spam killer ;)
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That value isn't storedin DV either. Again, it's horizontal devided by vertical resolution. (720/480=1.5)
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useful links:
VirtualDub, Input plugins and filters, AviSynth, AVI-Mux GUI, AC3ACM by fcchandler, VirtualDub FAQ |
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| rmanal |
| Posted: Jan 21 2012, 07:01 PM |
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Advanced Member
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Posts: 153
Member No.: 11636
Joined: 28-August 04
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OK I have said a stupid thing.
Thank you for your help. |
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