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

[Tim Nicholson]

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
include mov timecode so the difference is shrinking.


-- 
Tim