[FFmpeg-user] decoding jpeg2000 problem

Carles Vila cvilad at gmail.com
Fri Sep 4 13:39:16 CEST 2015

On 4 September 2015 at 12:17, Carl Eugen Hoyos <cehoyos at ag.or.at> wrote:

> Carles Vila <cvilad <at> gmail.com> writes:
> > I've run into a problem when converting a j2c image
> > sequence to ProRes.
> Sorry, I thought the artefacts are intended...
> You need to use ffmpeg -vcodec libopenjpeg -i frm%6d.j2c
> to use the libopenjpeg decoder.
> I updated the ticket, Carl Eugen
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Hi Carl Eugen,

Thanks for the reply. I've tested the -vcodec libopenjpeg and indeed the
quantization artifacts are gone! But it fails to do the xyz->rgb
conversion. (Without this option it does the conversion autamatically) Any
option to force it? Anyway I'm going to update to the latest version.

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