Friday, December 2, 2011

[Avid-L2] Re: Pix240 DnxHD via MXF

 

Could you elaborate on the loss of audio issue. If I transcode an XDCamEx clip to say dnx doesn't the audio also get transcoded into a .mxf file in the AvidMediaFiles folder? I'm very curious what's going on.

--- In Avid-L2@yahoogroups.com, "bouke" <bouke@...> wrote:
>
> Ah, that i did not know.
> (I thought AMA always re-encoded / rendered...)
>
> You learn something new every day.
> (Like not trashing your original XDcamEX files after transcoding to DNxHD,
> as you will loose your sound. Another T-shirt for Bouke... (who knew this,
> but just got home tired and needed a fast cleanup. Now to call the client
> for the backup...)
>
> Bouke
>
> VideoToolShed
> van Oldenbarneveltstraat 33
> 6512 AS NIJMEGEN
> The Netherlands
> +31 24 3553311
> www.videotoolshed.com
> For large files:
> http://dropbox.yousendit.com/BoukeVahl998172
>
> ----- Original Message -----
> From: "pleasecallmebob" <SurferRob@...>
> To: <Avid-L2@yahoogroups.com>
> Sent: Friday, December 02, 2011 5:31 PM
> Subject: [Avid-L2] Re: Pix240 DnxHD via MXF
>
>
> > Codecs external to Media Composer - H.264... will need to be transcoded so
> > they are managed media. These use a codec external to Media Composer,
> > which reduces the playback performance. These are know as Sample Mapped.
> >
>
> Make that Sample Provider.
>
> --- In Avid-L2@yahoogroups.com, "pleasecallmebob" <SurferRob@> wrote:
> >
> > AMA link to the QT file. Select it and Right Click, Consolidate/Transcode.
> >
> > The Consolidate/Transcode Dialog opens, select consolidate.
> >
> > Done, pretty easy if you ask me.
> >
> > Codecs that are part of Media Composer - DNxHD, XDCAM. DVCProHD....
> > use the codec internal to Media Composer for the decode and can be
> > consolidated. These are known as Sample Mapped Codecs.
> >
> > Codecs external to Media Composer - H.264... will need to be transcoded so
> > they are managed media. These use a codec external to Media Composer,
> > which reduces the playback performance. These are know as Sample Mapped.
> >
> > Bob
> >
> >
> > --- In Avid-L2@yahoogroups.com, "bouke" <bouke@> wrote:
> > >
> > > Bobby my boy,
> > > How does one consolidate a QT if it's not into Avid already?
> > > You mean trough AMA or what?
> > >
> > > Bouke
> > >
> > > VideoToolShed
> > > van Oldenbarneveltstraat 33
> > > 6512 AS NIJMEGEN
> > > The Netherlands
> > > +31 24 3553311
> > > www.videotoolshed.com
> > > For large files:
> > > http://dropbox.yousendit.com/BoukeVahl998172
> > >
> > > ----- Original Message -----
> > > From: "pleasecallmebob" <SurferRob@>
> > > To: <Avid-L2@yahoogroups.com>
> > > Sent: Thursday, December 01, 2011 10:08 PM
> > > Subject: [Avid-L2] Re: Pix240 DnxHD via MXF
> > >
> > >
> > > Just consolidate the clip. This will unwrap the DNxHD media from QT and
> > > wrap
> > > it as OPAtom MXF.
> > >
> > > Bob
> > >
> > > --- In Avid-L2@yahoogroups.com, "bouke" <bouke@> wrote:
> > > >
> > > > A fast import should be possible.
> > > > However, more elegant, you can use FFmpeg to extract the raw DNX and
> > > > Wave
> > > > files, then use WriteAvidMXF to create Avid compatible MXF.
> > > > (Both are free available from SourceForge)
> > > > Then you just MediaTool in your clips.
> > > >
> > > > I've tested this with a sample clip i got from a Pix recorder, and it
> > > > works
> > > > just fine.
> > > >
> > > >
> > > > Bouke
> > > >
> > > > VideoToolShed
> > > > van Oldenbarneveltstraat 33
> > > > 6512 AS NIJMEGEN
> > > > The Netherlands
> > > > +31 24 3553311
> > > > www.videotoolshed.com
> > > > For large files:
> > > > http://dropbox.yousendit.com/BoukeVahl998172
> > > >
> > > > ----- Original Message -----
> > > > From: "chris magid" <chris_rtvf@>
> > > > To: <Avid-L2@yahoogroups.com>
> > > > Sent: Thursday, December 01, 2011 7:33 PM
> > > > Subject: [Avid-L2] Pix240 DnxHD via MXF
> > > >
> > > >
> > > > > Have DnxHD 220x quicktimes as captured by a Pix240 at 1080p23.98.
> > > > >
> > > > > Performance is sluggish through AMA on a maxed out z800 based
> > > > > Symphony
> > > > > Nitris DX.
> > > > >
> > > > > Thinking I would gain some performance and probably have a smoother
> > > > > workflow if I could re-wrap these as MXF files and drop them into a
> > > > > traditional Avid Media Files Folder.
> > > > >
> > > > > What would be the best or proper workflow to do so?
> > > > >
> > > > > Is there an application anyone really likes to streamline the
> > > > > process?
> > > > >
> > > > > Once they are in the Media Files folder should I be able to drag
> > > > > from
> > > > > the
> > > > > media tool to a bin and create master clips?
> > > > >
> > > > > Am I correct in assuming that if I elect to AMA the QT files and
> > > > > then
> > > > > transcode to DNXHD at the bin level it would actually re-compress
> > > > > the
> > > > > files and not just rewrap? Think that would require a level of
> > > > > intelligence/detection not in Symphony/Composer.
> > > > >
> > > > > Think I remember doing something similar many moons ago.
> > > > >
> > > > >
> > > > >
> > > > > C. A. Magid
> > > > > RTVF
> > > > >
> > > > > [Non-text portions of this message have been removed]
> > > > >
> > > > >
> > > >
> > >
> >
>

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