This IS the Avid L2: Re: [Avid-L2] Does AME Process a QT Ref with multiple encodes in sync?

Friday, April 29, 2016

Re: [Avid-L2] Does AME Process a QT Ref with multiple encodes in sync?

After using the Help menu and a link to a tutorial on "Parallel Encoding" I found that the default preference in Adobe Media Encoder is to have what Adobe call Parallel Encoding on so if a source has multiple outputs assigned to it they will encode in parallel. Curiously what appeared to have been encoding in sync based on the output preview windows today shows a definite difference in encoding progress. Withe the XD Cam 50 export taking much longer than the H_264 and the preview windows video reflects this. Not much has changed in my presets so I don't know why things looked to be in perfect encoding sync the other day and not now. I did find my H_264 preset I had made wasn't set to add pulldown the other day so maybe that explains the difference today but that seems unlikely.

Now if I could only find a way to make AME generate 30 DF time code on the file it's adding pulldown to. As it stands I end up with non drop 30 frame code on the exports. I can use QT change to change this to 30 DF and I can also set any time code window AME inserts to 30 df code but the actual time code in the file is 30 NDf code regardless of what I set in the effects tab for the time code window insert. Not the biggest problem but it would be nice to find a way to do that. In cases where I'm not generating .movs I don't have a convenient method to modify the resulting time code. This is especially problematic if delivering an XDCam 50.mxf file when it's not wrapped in QT .mov.

---In avid-l2@yahoogroups.com, <bigfish@...> wrote :

That's good to know. In the words of Dave Bargin what is the "Spirit" of this preference? I have only used the basics in AME is there a compelling reason to choose simultaneous over sequential rendering? I could see wanting a particular file to be done first if time is of the essence. In what I'm calling sequential mode does AME process in the order the various encode presets appear in the window from top to bottom? Could simultaneous mode be more overall time efficient? I'm going to check the help menu but any further enlightenment would be appreciated.

---In avid-l2@yahoogroups.com, <speckydave@...> wrote :

Processing multiple files simuktaneously is a user preference in AME that can be switched off.

Sent from my mobile phone - please excuse spellung.

On 28 Apr 2016 4:20 a.m., "John Moore bigfish@... [Avid-L2]" <Avid-L2@yahoogroups.com> wrote:

In adding pulldown with Adobe Media Encoder 2014 I'm using an RGB level QT Ref out of Avid with 16 channels of audio. I am baking out to 59.94i from the 23.976 QT Ref of DNX 175X material. I have built a preset with 16 channels of audio going to XDCam 50 422 in a .mov. I also made an H_264 preset with just 2 channels of audio. I'm hoping that will just take the first two audio channels of the 16 in the QT ref and not do a mult of all the tracks. I will be curious to see how that actually works. I added the two presets to the QT Ref file and I noticed when I started encoding I see two windows in the output window which are the two preset outputs. I notice they seem to be running in sync. Is that typical of how AME handles multiple outputs? I had expected it to process one file and then the other but it seems to be working in tandem in sync. I would think the encoding time going to XDCam 50 would be different than going to H_264 but the two windows are in perfect sync. It seems like it's overall encode time will be less than if I did the two files consecutively but I"m not totally sure of that. Last night when I did just an XD Cam 50 of the same show it took about 48 minutes and now it's taking about 75 minutes so that seems a bit more efficent assuming the H_264 encode would take about the same time as the XDCam 50.

John Moore Barking Trout Productions Studio City, CA bigfish@...