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DS Misc > BatchDPG Settings Compilation

#87728 - mrsaturn - Thu Jun 15, 2006 7:56 am

First of all, a huge thanks to LS5 for making this awesome process. Video on the DS is now truly worthwhile.

For those of us that use BatchDPG, I think we should post all the settings we use during the transcoding/encoding steps. I would love to have a solid group of settings, but I honestly don't really know what I'm doing.

Anyway, I will share what I HAVE learned.

Go into the moonshell directory (shell), open up global.ini and modify these settings:
Dithering=0
GOPSkip=0

I'm currently just encoding Xvids, haven't had a need to transcode anything yet. Would it make sense to transcode to a certain format before going to DPG?

My settings for dpg encode are:
FPS: 15
Width: 256
Height: 192
Audio bitrate: 64
Video Bitrate: 352
Max Video:352
Mono

I hope there are better settings that this!

#87731 - Dwedit - Thu Jun 15, 2006 8:35 am

Going to DPG IS transcoding to mpeg-1.
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#87791 - mrsaturn - Thu Jun 15, 2006 6:52 pm

Makes sense! So the previous format makes absolutely no difference?

#87792 - Darkflame - Thu Jun 15, 2006 6:58 pm

Compressing from a compressed file will always make stuff look worse, so starting from the least compressed file possible will yeild the best results.
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#87815 - HyperHacker - Thu Jun 15, 2006 7:44 pm

Video compressions are generally lossy, so if you take a video compressed in Format X, it's already lost some quality. In the conversion to DPG it will lose some more. So it makes no sense to convert it to Format Y and lose even more quality beforehand. If the encoder doesn't understand Format X, and Format Y is lossless, then sure, go ahead. Otherwise you're just wasting CPU power.

(Side note: This is why audio encoding programs warn you about encoding from MP3 or OGG to one of these, as these are lossy formats.)
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#87818 - mrsaturn - Thu Jun 15, 2006 7:51 pm

Oh okay. I should have drawn some parallels to audio transcoding, I'm fairly well-versed with that. What would you say is the best framerate? I'm around 16 right now, I tried 24 and the video froze after a few seconds.

#87826 - tepples - Thu Jun 15, 2006 8:05 pm

HyperHacker wrote:
So it makes no sense to convert it to Format Y and lose even more quality beforehand. If the encoder doesn't understand Format X, and Format Y is lossless, then sure, go ahead.

Unless it's Huffyuv, which I like to use as an intermediate format after a VirtualDub job, and which dpgenc understands, but which (unfortunately) the most recent version of BatchDPG that I tried does not understand.
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