[FFmpeg-user] Converting Rec.601 YV12 to Rec.709 for MPEG-2 encoding
krueger at lesspain.de
Mon Mar 11 19:00:09 CET 2013
On Mon, Mar 11, 2013 at 3:58 PM, Francois Visagie
<francois.visagie at gmail.com> wrote:
>> -----Original Message-----
>> From: ffmpeg-user-bounces at ffmpeg.org [mailto:ffmpeg-user-
>> bounces at ffmpeg.org] On Behalf Of Robert Krüger
>> Sent: 11 March 2013 16:39
>> To: FFmpeg user questions
>> Subject: Re: [FFmpeg-user] Converting Rec.601 YV12 to Rec.709 for MPEG-2
>> On Mon, Mar 11, 2013 at 2:49 PM, Carl Eugen Hoyos <cehoyos at ag.or.at>
>> > Francois Visagie <francois.visagie <at> gmail.com> writes:
>> >> What command line option/s do I need for converting
>> >> Rec.601-recorded YV12 to Rec.709 for MPEG-2 encoding?
>> > What is the difference between 601 and 709?
>> > I thought both are limited to values between 16 and 235.
>> Yes, but they use slightly different coefficients in rgb<->yuv
> Yes, that's my concern. Even if the conversion can't be done in ffmpeg, I
> need to know that it needs to be done externally.
it's probably -vf colormatrix=bt601:bt709
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