DCP-o-matic users September 2017

users@lists.dcpomatic.com

12 participants
10 discussions

by Jim Dummett

Hi all. Does anyone have any pointers on converting a 3D bluray to DCP? The bluray which is the source in this case has the 3D encoded as MVC. From my reading, this means the right eye picture is encoded as a separate stream (which is a delta from the left eye). Have ripped the bluray with MakeMKV which recognises that it's an MVC-3D stream. And the file it outputs appears to be the right size so I think MakeMKV is not dropping the extra stream or something like that. But I haven't found any software that can display both eyes at present. DCP-o-matic doesn't see it, and nor does Bino 3D player or VLC. I'm on Mac but can get hold of a Windows box if I need to. Anyone encountered this before? Many thanks, Jim

2 weeks, 2 days

[DCP-o-matic] Help Required

by Thangasamy Bagavathiappan

Dear Carl, I have downloaded software from https://dcpomatic.com/ . I don't know how to convert the attached image files into dcp format using your software. Could you please help me on this? I look forward to hearing from you soon on this. Thanks and Regards, Thangasamy Bagavathiappan *Managing Director * SWAMY MOVIES LTD Company Registration Number: NI625184 UK VAT Registration Number: 188 9009 61 Ireland VAT Registration Number: 3432326UH 10 Summer Meadows Mews Londonderry - BT47 6SG Ph No: +44 (0)2871310258 Mob No: +44 (0)7727064607 E-Mail: Thangasamy.Bagavathiappan(a)swamymovies.com <moviesswamy(a)gmail.com> Website: www.swamymovies.co.uk Disclaimer: This e-mail contains proprietary information some or all of which may be legally privileged. It is for the intended recipient only. If an addressing or transmission error has misdirected this e-mail, please notify the author by replying to this e-mail. If you are not the intended recipient you must not use, disclose, distribute, copy, print, or rely on this e-mail.

7 years, 7 months

[DCP-o-matic] issue with prores file (.mov) not automatically populating sound channels

by Billy Both

Hello, I love your program and works great with everything I’m doing for the Melbourne Film Festival that I’m presenting all the entries. The issue I’m having is a video that was sent in that is a ProRes/.mov video that is 7.1 sound is not automatically populating the sound channels for DCP-O-Matic. Can you help me with this issue? Billy Both Cocoa, FL, USA Sent from Mail for Windows 10 --- This email has been checked for viruses by AVG. http://www.avg.com

7 years, 7 months

Re: [DCP-o-matic] issue with prores file (.mov) not automaticallypopulating sound channels

by Carl Hetherington

Is there a file called "ffprobe.log" in your DCP-o-matic project folder? On Wed, 20 Sep 2017, Billy Both wrote: > > Typically when I load in a video, the audio channels have a green mark indicating which channel will be encoded where is needs to go. When I load in this video, it doesn’t show any > green marks except the center channel. When I analyze the audio, it only shows the center channel and non of the rest of the 7.1. > > > > Sent from Mail for Windows 10 > > > > From: Carl Hetherington > Sent: Wednesday, September 20, 2017 5:25 PM > To: Billy Both > Cc: Billy Both via DCPomatic > Subject: Re: [DCP-o-matic] issue with prores file (.mov) not automaticallypopulating sound channels > > > > On Wed, 20 Sep 2017 17:19:51 -0400 > > Billy Both via DCPomatic <dcpomatic(a)carlh.net> wrote: > > > > > Hello, > > > > > > I love your program and works great with everything I’m doing for the Melbourne Film Festival that I’m presenting all the entries. > > > > > > The issue I’m having is a video that was sent in that is a ProRes/.mov video that is 7.1 sound is not automatically populating the sound channels for DCP-O-Matic. Can you help me > with this issue? > > > > Hi Billy, > > > > Can you clarify what you mean by "not automatically populating"? I'm not quite clear on it. > > > > Kind regards, > > Carl > > > > > [icon-envelope-tick-green-avg-v1.png] > Virus-free. www.avg.com > >

7 years, 7 months

Re: [DCP-o-matic] DCPomatic

by Carsten Kurz

Am 18.09.2017 um 03:28 schrieb Joshua Achatz: > I see the 'scale to:' tab, but i don't see 1.78 as an option. i shouldn't leave it at 16:9? Which version of DOM are you using? 16:9 is the same as 1.78. I knew the Content->'Scale to fit menu' would come over us at one time... ;-) These two options 'Scale to fit' are basically shortcuts to fill the screen in an easy way - but they usually cause cropping in an uncontrolled way. They should go under the list of other ScaleTo options, but for some reason at the time, there was no space there for it. It's been a while, but I remember no one was really happy with that solution. Normally, DCP-o-matic detects the aspect ratio of footage automatically, if it is flagged correctly, and if there is no letterboxed content. So, in your case, DOM did probably select 16:9/1.78, and then all you need to do is to confirm the flat container under DCP as far as scaling/aspect ratio goes. Some people say that 150MBit/s is enough. Yes, may be, but, the 'standard' spec goes up to 250MBit/s, and, with 30fps, you could need a bit more. Chances are high your footage doesn't need it, but as 16:9 is 'near' full frame, and at 30fps, just choose 200MBIt/s and then forget about that setting. If you're picky, use 235MBit/s, but don't try 250! Yes, you need to crunch through the full file again if you changed the data rate, as that concerns every single frame from the beginning. DCP-o-matic should start encoding from scratch when you change the datarate, but it also could be a point for a nice little bug (I doubt it). - Carsten

7 years, 7 months

Re: [DCP-o-matic] DCPomatic

by Carsten Kurz

Am 17.09.2017 um 23:15 schrieb Joshua Achatz: > Thanks for your help. > > How do I scale it to 16:9/1.78 and choose a flat container? Sorry, I'm just totally new to this stuff. I assume you use 2.10.5? Under 'DCP' choose 'SMPTE' for Standard, container 'Flat' (1998*1080) and for framerate '30fps', 200MBit/s for data rate. Select your content in content list, then in the Content-> Video Tab -> Scale to: choose '1.78'. Reset all cropping values to 0 if there are any from previous experiments. You should see thin black bars left and right. Color conversion should automatically be set to rec709. In Prefs->General, you should have ticked 'Find integrated loudness, true peak and loudness range when analysing audio'. This will give you better numbers to estimate proper audio levels. Do you have a stereo or a surround/center based soundtrack? Peak values will only indicate wether there is clipping or not. As far as clipping goes, -2.6 is okay. However, this doesn't tell you wether your audio loudness is in the right ballpark for a cinema. Usually, this is not so critical for festivals, but, you should still try to be within the range that is common for cinema operations. Choose 'Audio'->Show graph of audio levels Do you have a listing of True Peak, Integrated loudness and loudness range on the bottom of that window? Tell us the value for 'Integrated loudness'. If there is no such value given, you probably performed the audio analysis before you ticked the advanded audio analysis in prefs. In that case, safe your project, exit DOM, got to the project folder, find and delete a folder 'analysis' within in. Restart DOM, reload your project, select 'Audio'->'Show graph of audio levels'. DOM should now take a bit longer to analyse the audio levels, and should show True Peak, Integrated loudness and loudness range. - Carsten

7 years, 7 months

[DCP-o-matic] DCPomatic

by Joshua Achatz

Hi Carl, I am using the DCP-omatic to convert my film for a festival. I'm having a bit of trouble and hope you can help me. It was shot in 30fps, but the programs says that is an unusual frame rate. Should I change it to 24, and if so, do I just change it under the DCP tab? I want to make sure the video quality won't be compromised. But it sounds like it's okay to leave it at 30, from what I've heard. The program is also advising that I create an SMPTE DCP instead of an interop, because of the frame-rate. What is the difference? Should I do that? Also, under the DCP tab, I set the container to 16:9, but the program is saying if possible to put it in scope or flat, but those aren't the right size of my film, and leave those black edges on the sides of the picture. Please help me if you could. I've been working on this for a few days, and have to complete it soon for it to show in the festival. Thank you! Josh

7 years, 7 months

[DCP-o-matic] activating on mac osX

by office＠mediacolors.com

hi all it seems that my mac os x doesn’t allow to use your downloaded program due to the fact that the origin isn’t the apple store. what can i do? thx for your support and wish you a pleasant weekend peter

7 years, 7 months

Re: [DCP-o-matic] process stop

by Carsten Kurz

Am 04.09.2017 um 13:03 schrieb Lennart Westman: > Well well, Carsten. > > This is probably the. So stupid of me. I am waiting for the audio analysis to terminate, and then I’ll do as you said. Many thanks. > Audio analysis can take quite long, especially for full length features and on slower machines. If you are absolutely sure about your audio format and levels, you may disable audio analysis in prefs, so you can continue faster in DOM. You can always perform the analysis later when choosing 'Show audio' levels in content or DCP. Audio levels and channel mappings, however, are quite important for DCP playout in cinemas, so you should never give out a DCP without having done an analysis. Unlike most other codec-only formats/containers, a DCP is more complex and more parameters have to be set properly, so a 'one-click-conversion' does not make much sense. - Carsten

7 years, 7 months

[DCP-o-matic] process stop

by Lennart Westman

Hi, I wonder if you might have any idea why a rendering process of an mp-4 to DCP stops after analyzing the audio? Kind regards Lennart Westman Composer, director and filmmaker +46 70 459 23 93 <http://www.lennartwestman.st/> seethrough black_small

7 years, 7 months

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DCP-o-matic users September 2017