Blu-ray HD movie screenshot thread... - Page 107 - AVS Forum | Home Theater Discussions And Reviews
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post #3181 of 4060 Old 08-11-2011, 07:59 PM
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It's definitely a shame about mplayer's RGB colorspace conversion issues for screenshots, since it's a rather nice tool otherwise.

I've been meaning to make a BD screenshot tool for quite some time, either as a new feature of BDInfo or as a separate tool, but I just haven't had the time to dedicate to it. I don't suppose it would be too hard to come up with a patch to mplayer's screenshot module, since I use essentially the same underlying software (i.e. ffmpeg's libavcodec) for my own workflow. However, in lieue of something nice to use, here is a very, very basic command-line tool (w/ source) that I just slapped together out of some of the code that I use which dumps all of the I-frames of an M2TS to PNG with a BT.709 YUV->RGB colorspace conversion at 0-255 levels through an intermediate YUV 4:4:4 chroma upscale which seems to mostly avoid chromatic aberrations in the resulting RGB:

http://media.cinemasquid.com/blu-ray...ns.v.0.0.1.zip

Basic command-line usage from the project folder:
Code:
mkdir temp
cd temp
..\\bdscreens x:\\bdmv\\stream\\00000.m2ts
You may or may not find this useful. The output PNG have only medium compression for timesaving considerations during the extraction process, so it's advisable to losslessly recompress the keepers again in PNG with a more aggressive setting (or make them into high-quality JPEG which can be quite satisfactory). It does not deinterlace, so should not be used with 1080i50/60 titles. Also, it does not work with encrypted files, so SlySoft AnyDVD HD or equivalent needs to be running in the background for off-the-shelf discs.

FYI, the output I-frame-only PNGs for your average 2 hour movie can consume between 20-30GB of disc space.
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post #3182 of 4060 Old 08-11-2011, 08:04 PM
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Looks like that would definitely be useful in some situations, but right now I'm more interested in taking screenshots of all frames during certain scenes, not just I-frames. Thanks, though.
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post #3183 of 4060 Old 08-12-2011, 05:09 AM
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thanks Cinema Squid ! Glad to hear you're still alive and kickin'

going to give it a try and hope to see a "final" version of these tool as soon as yo can!
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post #3184 of 4060 Old 08-12-2011, 07:11 AM
 
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post #3185 of 4060 Old 08-14-2011, 07:25 AM
 
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post #3186 of 4060 Old 08-15-2011, 08:24 AM
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16 screenshots from The Extraordinary Adventures of Adèle Blanc-Sec.
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post #3187 of 4060 Old 08-16-2011, 01:43 PM
 
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post #3188 of 4060 Old 08-17-2011, 05:45 AM
 
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post #3189 of 4060 Old 08-18-2011, 02:12 AM
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Screenshoots from [IT]Ransom




















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post #3190 of 4060 Old 08-18-2011, 08:03 AM
 
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post #3191 of 4060 Old 08-19-2011, 02:45 AM
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[IT] L'Orso

Original title: L'ours

















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post #3192 of 4060 Old 08-19-2011, 06:13 AM
 
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post #3193 of 4060 Old 08-21-2011, 07:19 AM
 
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post #3194 of 4060 Old 08-22-2011, 10:17 PM
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40 screen captures from Hobo with a Shotgun (2011) [Magnolia - US Region A]
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post #3195 of 4060 Old 08-23-2011, 02:19 PM
 
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post #3196 of 4060 Old 08-24-2011, 06:25 AM
 
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post #3197 of 4060 Old 08-25-2011, 06:57 AM
 
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post #3198 of 4060 Old 08-26-2011, 01:51 AM
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Screenshoots from [IT] Machete

Oh bytheway some screenshoot includes (semi-) naked woman.

Just to advise if you're work. Obviously nothing serious comparing with a normal program/film in TV but i prefer to underline that.




































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post #3199 of 4060 Old 08-27-2011, 07:23 AM
 
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post #3200 of 4060 Old 08-28-2011, 06:39 AM
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Rambo I First Blood (new edition "remastered)































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post #3201 of 4060 Old 08-28-2011, 05:24 PM
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Thanks Dark_zero!

LG B7 (OLED65B7P, 2017)
UHD: Philips BDP7501 | HD: PS3, WD TV Live
Denon AVR-890 (2009)
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post #3202 of 4060 Old 08-28-2011, 06:29 PM
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(EDIT: This comparison from SwissHD gives me a little more hope, though the difference isn't enough that I'll be jumping to import.)

It's tough to compare high-compression JPEGs, but the remaster seems to be a side-grade at best (compared to the Optimum BD, not Lionsgate's DNR mess). Some shots on the new one appear to have less detail and the color palette looks even more drab.















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post #3203 of 4060 Old 08-28-2011, 11:15 PM
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you're welcome msgohan

As far as i know, with media player classic home cinema there is no way to increase size of jpgs.
Or am i wrong?

thanks for posting these comparision
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post #3204 of 4060 Old 08-29-2011, 01:26 AM
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The Blues Brother (theatrical cut only, Multi-EU BD)




























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post #3205 of 4060 Old 08-30-2011, 05:30 AM
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Breakfast at Tiffanany's

(all in .png format)




































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post #3206 of 4060 Old 08-30-2011, 06:16 AM
 
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Some shots from THOR.




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post #3208 of 4060 Old 08-31-2011, 07:23 AM
 
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post #3209 of 4060 Old 09-01-2011, 06:54 AM
 
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post #3210 of 4060 Old 09-01-2011, 10:43 PM
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40 screen captures from The Big Lebowski (1998) [Universal - US Region ABC]
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