[FFmpeg-user] DOWN CONVERSION ISSUE: From MXF (1080i AVC Intra) - MBAFF "interlacing" to DVCPRO

[Clément Bœsch]

On Mon, Mar 26, 2012 at 10:33:07AM +0100, Tim Nicholson wrote:
> On 26/03/12 10:22, Dave Bevan wrote:
> > -----Original Message-----
> > From: ffmpeg-user-bounces at ffmpeg.org
> > [mailto:ffmpeg-user-bounces at ffmpeg.org] On Behalf Of Tim Nicholson
> > Sent: 26 March 2012 10:18
> > To: FFmpeg user questions and RTFMs
> > Subject: Re: [FFmpeg-user] DOWN CONVERSION ISSUE: From MXF (1080i AVC
> > Intra) - MBAFF "interlacing" to DVCPRO
> > 
> > On 26/03/12 09:57, Dave Bevan wrote:
> >>
> >> [...]
> >> ----------------------------------------------------------------------
> >> --
> >> -------------------------
> >> And you should also ensure you change colourspace too - HD is bt709 
> >> whereas SD is bt601. Add this to Tim's filter chain:
> >>
> >> ,colormatrix=bt709:bt601
> >>
> > 
> > I didn't think colormatrix was in git head yet.....
> > 
> > 
> > ----------------------------------------------------------------------
> > Ah... That'll be ffmbc vs ffmpeg then ;-)
> > 
> > Personally, for broadcast grade work (such as AVCi to DVCPRO), I would
> > switch from using ffmpeg to ffmbc - http://code.google.com/p/ffmbc/ - it
> > has much broader support for professional formats and for us in our
> > small part of the BBC, meets most of our professional requirements -
> > such as having colorspace conversion support etc, etc.
> > 
> > --Dave.
> 
> Although curiously at the moment ffmpeg has a couple of filters that I cannot
> live without that are not (yet?) in ffmbc......
> 
> Btw Clément has submitted a patch to include colorspace, and another one to

Nope I just did a review of the recently submitted colormatrix filter :)

> include mov timecode so the difference is shrinking.
> 

Yep, but need to be fixed as you pointed it out, but as usual time is the
biggest issue.

-- 
Clément B.
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