Friday, September 23, 2016

RE: [Avid-L2] Issues with AVCHD100 files

 

Good thing to check.  Thanks for the idea.  It's 1080p 23.98 footage but I know there's a little lack of discipline.

 

Dave Spraker

 

Principal, spraker.tv

 

dave@spraker.tv
(503) 897-0250

 

From: John Pale [mailto:pale.edit@gmail.com]
Sent: Friday, September 23, 2016 12:50 PM
To: Avid-L2@yahoogroups.com; Dave Spraker <avid@spraker.tv>
Cc: Dom Q. Silverio <domqsilverio@gmail.com>; johnrobmoore <bigfish@pacbell.net>
Subject: Re: [Avid-L2] Issues with AVCHD100 files

 

What frame rate?  I've worked on systems that would play 23,976 just fine but choke on higher Frame rates.  Also would be a problem if the footage did not match project frame rate and required a motion adapter

On Friday, September 23, 2016, 'Dave Spraker' avid@spraker.tv [Avid-L2] <Avid-L2@yahoogroups.com> wrote:

 

Thanks to everyone who responded.  No Avid hardware so no hardware acceleration.

 

I didn't see the system working before, but they swear it worked fine and then something changed.

 

The mystery continues…

 

Dave Spraker

 

Principal, spraker.tv

 

dave@spraker.tv
(503) 897-0250

 

From: Avid-L2@yahoogroups.com [mailto:Avid-L2@yahoogroups.com]
Sent: Thursday, September 22, 2016 6:45 PM
To: avid-l2 <Avid-L2@yahoogroups.com>; johnrobmoore <bigfish@pacbell.net>
Subject: Re: [Avid-L2] Issues with AVCHD100 files

 

 

If I remember correctly, the early versions would have a sticker in the back indicating the board is installed. Later models would have "AVC-Intra" printed in front, top right.

https://www.bhphotovideo.com/images/images2000x2000/Avid_9900_65256_00_STAND_ALONE_HARDWARE_KIT_851230.jpg


Dom Q. Silverio

 

On Thu, Sep 22, 2016 at 9:40 PM, bigfish@pacbell.net [Avid-L2] <Avid-L2@yahoogroups.com> wrote:



I purchased my NitrisDX in 2012 but never new the AVC board was anything but an option.  Is that something that appears in the Hardware Tab to check?



---In Avid-L2@yahoogroups.com, <domqsilverio@...> wrote :

Avid recommends at least an 8 core to play a single stream of AVC-I.

The Nitris DX has a hardware based AVC-I codec installed allowing better performance with lower spec computers. The board was optional in early versions of DX. I think it became standard later on.


Dom Q. Silverio

 

On Thu, Sep 22, 2016 at 8:18 PM, Shane Ross shanerosseditor@... [Avid-L2] <Avid-L2@yahoogroups.com> wrote:

 

Trying to play back AMA linked AVCHD files?  Yeah, no wonder you are having problems. That is a highly complex format that needs a lot of resources to play back smoothly. Resources Avid isn't designed to utilize, like Cuda acceleration via an Nvidia graphics card, and tons of RAM. Even with apps that do utilize those, like Premiere Pro and Resolve, playback might still skip. It takes a lot to decode that on the fly 

 

So transcode the footage in Avid. Always best. 

Shane

 

Sent from my pocket calculator. 


On Sep 22, 2016, at 2:41 PM, 'Dave Spraker' avid@... [Avid-L2] <Avid-L2@yahoogroups.com> wrote:

 

L'ers –

 

Helping a customer who is having trouble playing back AVCHD 100 files shot on a Panasonic Pro camera.  It's my first exposure to the system but supposedly it used to work fine and now doesn't.

 

System specs: 3-4 year old HP z420, Win 7, 16GB RAM, Media Composer 7.0.6, G-Tech SAS connected storage (about 140 MB/sec) and an AJA Kona LHi

 

What I know:

 

            - there is a 942-memory training error that come up during boot, but that has supposedly been there for a while, trying to swap out half the RAM (two pairs of two different 4GB HP revs)

 

            - when playing the AVCHD 100 footage in a sequence the video will stutter and freeze, the audio will stutter and repeat pieces short phrases

           

            - watching the system resources it uses about 8GB of RAM but will go all the way up 100% of CPU

 

            - transcode the footage to DNxHD 115 and it plays fine

 

            - did the usual new project/user/bin/sequence check

 

When schedules allow I will reload the OS and start from scratch.  But any ideas/suggestions in the meantime are appreciated.

 

Thanx,

 

Dave Spraker

 

Principal, spraker.tv

Shared Storage Solutions  |  Consulting  |  Sports Audio

www.spraker.tv

 

1100 SE 12th Ave., Suite #312

Portland, OR 97214

 

dave@...
(503) 897-0250

 

 

 

 

 

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