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Lol I don't have time for that poo poo. Here is film vs digital argument: Do you want natural film grains and natural 14 ish stops dynamic range? Or do you want to be able to roll forever and save post production money? You can add film grain to digital but it can be costly on a feature film. You also get the grain if you get a film out but like anybody is doing that here.
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Mar 12, 2013 05:17
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it's on netflix and its good you should watch it
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Mar 12, 2013 05:21
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hey, how is 3d image saved on blu-ray? i imagine the normal image data is either left or the right eye and then there is some extra track that maybe encodes the differences between the main picture and the other eye? is there any software that can display (and change back and forth between) the other eye image for any given frame of a movie?
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Mar 12, 2013 10:26
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why can't digital sensors be better than film yet? just for the sake of argument, lets say our sensor is black and white, just records intensity. maybe it can handle 10 stops? why not have 3 pixels, one bare, one with dimming shade on it and third with even more dimmer. calibrate it so the middle of the 3 is exposed for the shot and then the brights and dims are captured all at once. like all the info of a HDR file but in one shot. then computers can use maths to work out a great movie from that
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Mar 12, 2013 10:31
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Wheany posted:hey, how is 3d image saved on blu-ray? http://en.wikipedia.org/wiki/Blu-ray_Disc#Blu-ray_3D According to this, it's just multiplexed Left and Right eye as 2 discrete video streams. I find it funny that they make a 3D blu-ray version seperate from the main movie since it claims it's done in such a way that an older blu-ray player should be able to play left eye only encodes.
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Mar 12, 2013 14:59
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echinopsis posted:why can't digital sensors be better than film yet? RED does this already. http://www.red.com/faqs/hdrx/overview Some people prefer film because you don't have to do anything to it to get the analog goodness of random grain, and slightly different colors/skintones. It's not about better, it's about artistic preference. pagancow fucked around with this message at 15:06 on Mar 12, 2013 |
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Mar 12, 2013 14:59
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pagancow posted:http://en.wikipedia.org/wiki/Blu-ray_Disc#Blu-ray_3D lisa "left-eye" encodez
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Mar 12, 2013 16:12
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Install Gentoo posted:lisa "left-eye" encodez
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Mar 12, 2013 16:26
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so i just tried to play a level 4.1 avc compliant .mp4 file on a late 2008 macbook pro and it kept dropping out when the bitrate spiked over 50mbps. loooooooooooooooooooool windows 7 doesn't have this problem.
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Mar 12, 2013 20:17
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pagancow posted:so i just tried to play a level 4.1 avc compliant .mp4 file on a late 2008 macbook pro and it kept dropping out when the bitrate spiked over 50mbps. is this because microsoft licensed a better built in decoder or what
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Mar 12, 2013 20:20
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This is because the GPUs inside older PCs can actually handle avc 4.1 video totally in hardware while the ones in the MBPs can't
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Mar 12, 2013 20:23
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who am i kidding, microsoft actually tests stuff to the spec instead of saying "yep our 5mbps itunes videos work"
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Mar 12, 2013 20:25
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its probably a driver thing
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Mar 12, 2013 20:26
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pagancow posted:who am i kidding, microsoft actually tests stuff to the spec instead of saying "yep our 5mbps itunes videos work" well yeah, some of their business actually depends on it
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Mar 12, 2013 20:30
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Apple: We're designed for the creatives *doesnt do poo poo with poo poo re: video*
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Mar 12, 2013 20:37
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pagancow posted:so i just tried to play a level 4.1 avc compliant .mp4 file on a late 2008 macbook pro and it kept dropping out when the bitrate spiked over 50mbps. 2008 was 5 years ago though HD-DVD was still around in 2008
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Mar 12, 2013 21:39
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pagancow posted:This is because the GPUs inside older PCs can actually handle avc 4.1 video totally in hardware while the ones in the MBPs can't the gpu itself probably can but apple was lazy as poo poo for a longass time and only supported hardware acceleration of h.264 video on very certain gpus and only in quicktimeX
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Mar 13, 2013 09:04
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death of osx prediction station
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Mar 13, 2013 13:23
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pagancow posted:so i just tried to play a level 4.1 avc compliant .mp4 file on a late 2008 macbook pro and it kept dropping out when the bitrate spiked over 50mbps. i thought level 4.1 meant 50 megabits per second was the upper limit?
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Mar 13, 2013 13:36
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~Coxy posted:the gpu itself probably can but apple was lazy as poo poo for a longass time and only supported hardware acceleration of h.264 video on very certain gpus and only in quicktimeX Just had a go at playing a 5.2 mbit 1080p h.264 .mp4 file in quicktimeX and something called "VTDecoderXPSService" was using 23-28% of a core, so hardware acceleration is definitely not working on System 10.8.2 with a NVidia GTX580.
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Mar 13, 2013 13:49
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I played that same AVC 4.1 file on a mac pro Xeon 2.66 quad core and it said it was using 154% cpu. mac os. goes past 100.
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Mar 13, 2013 14:45
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thats not osx specific. all linuxes do it
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Mar 13, 2013 14:47
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The funny thing too is when the file started skipping, the CPU usage DROPPED as if it was just like: https://www.youtube.com/watch?v=7x0tQeOXmtk
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Mar 13, 2013 14:48
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Linux isn't good at things like cpu scheduling.
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Mar 13, 2013 14:50
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what OS is good for those sorts of things?
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Mar 13, 2013 15:49
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windows is the best
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Mar 13, 2013 15:49
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lol windows has a terrible scheduler
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Mar 13, 2013 16:15
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polpotpi posted:what OS is good for those sorts of things? iOS is surprisingly good at video playback considering how terrible Quicktime and OS X is. Honestly dedicated video playback hardware is better because you cant screw it up. Turnkey solutions
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Mar 13, 2013 18:35
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JumpinJackFlash posted:lol windows has a terrible scheduler than Linux must be beyond terrible! (it is)
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Mar 13, 2013 18:36
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pagancow posted:iOS is surprisingly good at video playback considering how terrible Quicktime and OS X is.  whats the 30 hz psf mean
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Mar 13, 2013 21:10
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can we talk about webp? because it seems webp is pretty ownage. it supports lossless and lossy compression, with alpha, and animation. and it seems to do each better than jpeg, png and gif. and google might be able to use their high browser market share to actually give the format some chance of making it.
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Mar 13, 2013 21:54
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Wheany posted:can we talk about webp? because it seems webp is pretty ownage. it supports lossless and lossy compression, with alpha, and animation. and it seems to do each better than jpeg, png and gif. and google might be able to use their high browser market share to actually give the format some chance of making it. 20% share isnt enough to push adoption
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Mar 13, 2013 21:57
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Install Gentoo posted:20% share isnt enough to push adoption they already push them to chrome in their own services and if they do it in a non-retarded way (which is asking a lot of web "developers"), they use the Accept: header instead of User-Agent to detect who to push webp to
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Mar 13, 2013 22:15
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PsF is Partial Segmented Frame. HD-SDI was only designed for 29.976fps interlaced broadcast systems at first. PsF is a metadata flag to say to the hardware "I'm progressive material" Even if the device on the other end doesn't support PsF you will still be able to see something as it shoves it over 29.976 fps interlaced frames. http://en.wikipedia.org/wiki/Progressive_segmented_frame Wikipedia says Progressive, but i'm pretty sure its Partial.
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Mar 13, 2013 23:31
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I love dis thread
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Mar 14, 2013 03:22
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echinopsis posted:I love dis thread
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Mar 14, 2013 03:36
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oh hay a video thread i make display hardware this is pretty neat good thread there is a lot of poo poo in here i have to deal with to max sperg level at work
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Mar 14, 2013 03:42
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Wheany posted:can we talk about webp? because it seems webp is pretty ownage. it supports lossless and lossy compression, with alpha, and animation. and it seems to do each better than jpeg, png and gif. and google might be able to use their high browser market share to actually give the format some chance of making it. the best they could do with it right now is to convince mozilla to bake webp support into firefox, and considering firefox has supported webm since like day one I'm kind of surprised this hasn't happened yet hopefully the reason isn't because mozilla is hoping for animated png to catch on instead, because it won't
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Mar 14, 2013 03:47
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animated png is the correct solution. webp is never going to take off because gif, jpeg, and png already exist
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Mar 14, 2013 04:11
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kwinkles posted:oh hay a video thread i make display hardware this is pretty neat please tell me you do color space conversions correctly if you have to display one source at a different color space. this irks me about cheap DVD players/TVs
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Mar 14, 2013 04:57
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