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
---
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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 …
[View More]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
>
>
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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 …
[View More]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
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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 …
[View More]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
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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 …
[View More]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
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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
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 …
[View More]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
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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
Hi! I can´t add the archive of subtitles when I create the DCP, I wold like why happened this.
Thank you
Laura Gracia Márquez
Dirección de Fotografía
Fuera de Campo Films
C/ Llenguadoc, 56-60. Bajo 1ª. 08030 Barcelona
Tlf: 93 126 63 85 | Mvl: 646 365 123
www.fueradecampofilms.com
aux.foto(a)fueradecampofilms.com
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About 4 fps in a 12-core MacPro, configured with the default 24 threads.
We have seen much better speeds in this same configuration.
Tested with MKV and Prores sources, with some image modifications, and
no modifications at all. Also tried on a network, with the MacPro as
an encoding server and the laptop with the project not doing any JP2K
encoding. Slightly lower speed as expected. The server log at the
MacPro was giving about 5 seconds per frame, tha seems pretty high to
me.
I recently …
[View More]installed the latest test version 2.11.16, and trying to
troubleshoot I tried with the also installed stable version from late
December, with same speed result.
Are OSX packages statically compiled? or installing the newer test
version may have "damaged" some library shared with the older version?
Anyone else have or had a similar problem?
Thanks!
Manuel AC
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