Good info. I don't have compressor at work but I found the presentation tab. It seems the size presets in QT 7 have this on or off on different choices for 1920x1080. The top one in the list the normal and display size are 1920x1080 and the bottom choice of the same name yields 1920x1080 (1888 x 1062). Weird but now I know.
What's more peculiar is last night at home I saw a clear black border around the prores I baked with the
1920x1080 (1888 x 1062) and I've never seen that before. Right now I just checked a prores file I made at work that is clearly 1920x1080 (1888 x 1062) and it ama's into my SNDX 5.5.5 mac with no border like I saw last night at home on my mac SNDX 6.5.4. Like I said that was a first. I had always figured that the aperture setting in a .mov effected QT playback but nothing to do with the actual video essence of the file. Am I missing some potential setting on my home system relating to ama? It was a 2hour file that I made from a self contained DNX 175 .mov. The original DNX self contained QT ama's without any border as does the prores top choice for 1920x1080. Strangeness to me.
I continue to use QT7 because it's the most efficient way for me to export QT ref files and save as or in the case of prores export. I've checked the prores levels round trip back into avid and they are solid with little to no gamma shifts when ama'd back to. It may have it's short comings but at least it's the devil I know. I suppose I could use Sorenson but then I'd have to tinker with it as most of the presets are geared towards compression. Crap just give me a tape deck and I'll be fine. Frigging ones and zeros aren't to be trusted. And yes I know with tape it comes down to ones and zeros too but they seem more friendly when they are passing by a spinning head and showing me an SDI output.
---In avid-l2@yahoogroups.com, <cutandcover@...> wrote :
On Mon, Mar 16, 2015 at 4:15 PM, John Moore bigfish@... [Avid-L2] <Avid-L2@yahoogroups.com> wrote:Ironically just last night at home I made a ProResHQ file using QTPro 7 and I checked the bottom size choice for 1920x1080 which yields 1920x1080 (1888 x 1062). I use this all the time at work. When the file was done and I ama linked back to check it in Avid there was a border all around which I assume is the 1888 x 1062 is somehow overriding the ama link. I've never seen that before. I went back and checked the top 1920x1080 size preset choice and all was fine. I do this all the time and don't see the border on my Avid SNDX Ver 5.5.4 at work I just checked and all the files I've delivered at work show 1920x1080 (1888 x 1062) and there have been no problems.Ironically today I'm reading delivery specs regarding removing the CLAP atom from a ProResHQ 422 file and it seems it's dealing with the same issue. There is a JES Intensifier free software. This appears to be dealing the display aspect vs. the actual size of the file. I've never dealt with this before but I would think as long as I choose the upper 1920 x 1080 it should be okay. It seems to me they are concerned with the movie properties showing a slightly smaller display size vs. normal size. If both normal size and display size match at 1920x1080 I would think I'm sending a correct file. Can anyone shed some light on this new parameter.I remember that this was sort of the QT equivalent of the CRT K factor IIRC where the edges of the picture are cropped a bit which would hide some blanking issues etc... Am I correct that the display size is in essence cropping the picture in QT to avoid edge of the frame anomalies etc...I've been delivering ProResHQ 422 files with the 1920x1080 (1888 x 1062) setting and I haven't had any QC issues or rejections from this. Is this because of iTunes delivery specs that this network is repurposing the content on? Is an iTunes delivery effected by the 1920x1080 (1888 x 1062) more so than other digital deliveries?
Posted by: bigfish@pacbell.net
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