Thursday, December 22, 2011

Re: [Avid-L2] AMA sequence export to QT fail

 

Hahaha.. I agree it should work, but I am interested in possible answers in
why it doesn't...and whether it's an Avid problem or a QuickTime problem.

On Thursday, December 22, 2011, Roger <rogershuff@yahoo.co.uk> wrote:
> I think that's right - we're asking the poor application to do too much.
>
> On 22 Dec 2011, at 13:52, electropura212 wrote:
>
>> One thing you are not taking into account is that you are mixing Long GOP
>> footage (HDV) with regular I frame footage. You are asking the software
to
>> do several conversions at once. In addition to doing your transcode to
>> your new codec, Avid (or QuickTime ?) must figure out the cadence and
>> create the frames that don't really exist in the source footage.
>>
>> Curious if it works any better if you just transcode the HDV footage
first.
>> Leave the others in their original format.
>>
>> On Thursday, December 22, 2011, Roger <rogershuff@yahoo.co.uk> wrote:
>> > I just tried this (mix of AMA 1080i50, AMA 720p25 and SD 25i) and it
>> failed, as you say. I transcoded to 1080i DNXHD120 and the exports were
>> fine.
>> >
>> > On 21 Dec 2011, at 17:54, Jay Mahavier wrote:
>> >
>> >> Ok, so now that I've got this sequence cut together using clips that
are
>> in MCv6 using AMA I need to get it out to a QT. Preferably PhotoJPEG high
>> quality. But when I try to export it fails. Some of the AMA source is
Apple
>> Intermediate. Some h.264. Some HDV. Some PhotoJPEG. Some is SD, some is
HD,
>> etc etc. The audio is a mix of audio from the AMA clips and some imported
>> MXF audio.
>> >>
>> >> So I thought it may be one of the codecs of the source clips. So I
start
>> dumping various sources from the sequence and it almost always ends up
>> failing. The only thing that seems to help is breaking it down in to 1
min
>> pieces. And then it sometimes will export.
>> >>
>> >> Now if I do a video/audio mixdown then it's all ok. Is there a know
bug
>> with exporting from sequences with AMA sources in them that I missed? Or
am
>> I just doing something wrong?
>> >>
>> >> So far I'm very underwhelmed with AMA. Extremely underwhelmed.
>> >>
>> >> Thank you,
>> >> Jay
>> >>
>> >>
>> >
>> > With best wishes,
>> > Roger Shufflebottom
>> > rogershuff@yahoo.co.uk
>> > +44 7973 543 660
>> >
>> >
>> >
>> >
>> >
>> >
>> > [Non-text portions of this message have been removed]
>> >
>> >
>> >
>> > ------------------------------------
>> >
>> > Search the official Complete Avid-L archives at:
>> http://archives.bengrosser.com/avid/
>> > Yahoo! Groups Links
>> >
>> >
>> >
>> >
>>
>> [Non-text portions of this message have been removed]
>>
>>
>
> With best wishes,
> Roger Shufflebottom
> rogershuff@yahoo.co.uk
> +44 7973 543 660
>
>
>
>
>
>
> [Non-text portions of this message have been removed]
>
>
>
> ------------------------------------
>
> Search the official Complete Avid-L archives at:
http://archives.bengrosser.com/avid/
> Yahoo! Groups Links
>
>
>
>

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