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

Dave Bevan dave.bevan at bbc.co.uk
Mon Mar 26 11:22:54 CEST 2012

-----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.

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