AVI Failures during Produce

RonH

Contributor Location: Norway (from Australia) Joined: Sep 05, 2011 10:13 Messages: 364 Offline

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Aug 07, 2012 11:16

Just recently, I completed a 30 minute project which included some slides, text, MPEG2 videos and one short AVI video which came from a small camera. The project played OK on the pc from the Timeline but, when I produced the Movie Clip mpg, at the start of this clip (which followed a still slide) the movie was not correctly produced for the first few seconds eg a lot of erratic 'black screen' as it seemingly corrected. I converted the AVI to MPEG2 and the complete movie produced correctly.

So I get the result I want but what could be the reason? I have a good i7 processor (Intel i7-2630QM CPU @ 2.00GHz), 8GB memory and stacks of HD space. The graphics include Radeon (TM) HD 6770M (HP). Not the most powerful set up but usually OK with very few failures. CYa Ron (W10/i5gen8/Nvidia)
Someone famous once said: "We only have the 4th dimension of 'time' so that everything does not all happen at once"

James Dotson

Senior Contributor Location: Tennessee Joined: Aug 24, 2009 20:40 Messages: 3066 Offline

Aug 08, 2012 01:28

Just sounds like an encoding error. A second try at AVI may have also produced a good video, possibly. AVI is uncompressed and takes a lot of resources to produce. It is hard to say exactly what happened in your case. Another computer process may have interfered. Maybe just a glitch in PD. __________________________________
CORNBLOSSOM

RonH

Contributor Location: Norway (from Australia) Joined: Sep 05, 2011 10:13 Messages: 364 Offline

Aug 08, 2012 03:26

Quote: ... A second try at AVI may have also produced a good video ...

Thanks for reply.
I tried to Produce the Timeline on at least 3 occasions, making a few changes to text/transition of the photo preceeding the AVI movie but with no improvement. Interestingly the AVI is just 20MB but when I Produced this in PD10 to an mpg the mpg file size was 48MB.
I think it must be somehow due to the pc resources as you suggest. I could easily Produce the AVI to an mpg file as a stand alone production. Will check again next time I get to use an AVI file.
Ron CYa Ron (W10/i5gen8/Nvidia)
Someone famous once said: "We only have the 4th dimension of 'time' so that everything does not all happen at once"

Dafydd B

Senior Contributor Joined: Aug 26, 2006 08:20 Messages: 11973 Offline

Aug 08, 2012 06:09

Hi RonH ,
Please search for information on the net regarding "avi".
http://en.wikipedia.org/wiki/Audio_Video_Interleave

From what you've written the compression codec used in the avi file/by the camera produced a highly compressed small file. This is not unusual. The mpeg file you produced is larger as the compression codec it uses was not so targeted and is aimed at a compression level set some years ago for DVD production and conforms to the MPEGroup requirements. If you use a software called MediaInfo you'd be able to ascertain what codec was used in the avi file. Reading and decompressing a file requires you to have the right codec on your system. Converting that compressed file into another format takes a lot of resources and can slow your computer down. Your best approach (my suggestion) in those circumstances would be to check the "write to folder" option as well as the "burn to disc". You will split the process and ease the strain on your PC.

Dafydd

This message was edited 1 time. Last update was at Aug 08. 2012 06:12

RonH

Contributor Location: Norway (from Australia) Joined: Sep 05, 2011 10:13 Messages: 364 Offline

Aug 08, 2012 08:53

Thanks for that info, Dafydd ... interesting reading.
Ron CYa Ron (W10/i5gen8/Nvidia)
Someone famous once said: "We only have the 4th dimension of 'time' so that everything does not all happen at once"