Re: [FFmpeg-user] FFMpeg Exr Encoder

[Martin Vignali]

2018-05-12 9:06 GMT+02:00 Paul B Mahol :

> On 5/11/18, Matthew.Alexander - The Empire Post
>  wrote:
> > Hi,
> >
> >
> > I've been trying to use ffmpeg to speed up processes here at work,
> however
> > it has come to my attention that ffmpeg does not have an encoder for exr,
> > all I want to do right now is take existing EXRs and half the resolution,
> > however this doesn't seem to work.
> >
> >
> > Any tips?
> >
> >


FFmpeg doesn't have an exr encoder yet.
The most difficult part, is to add float/half pixel format in ffmpeg,
before adding an exr encoder.
(for now ffmpeg exr decoder, decode data in 16bit (int) not in float)

Martin
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Re: [FFmpeg-user] FFMpeg Exr Encoder

[Paul B Mahol]

On 5/11/18, Matthew.Alexander - The Empire Post
 wrote:
> Hi,
>
>
> I've been trying to use ffmpeg to speed up processes here at work, however
> it has come to my attention that ffmpeg does not have an encoder for exr,
> all I want to do right now is take existing EXRs and half the resolution,
> however this doesn't seem to work.
>
>
> Any tips?
>
>
> The Code i'm using:
>
> ffmpeg -i JumbleFalls_419_C001_Reverse_bg_FinalImage.%4d.exr -c:v copy -s
> 0x0 test.%4d.exr

That is very pointless command.
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Re: [FFmpeg-user] FFMpeg Exr Encoder

[Gonzalo Garramuño]

El 10/05/18 a las 22:38, Matthew.Alexander - The Empire Post escribió:

Hi,


I've been trying to use ffmpeg to speed up processes here at work, however it 
has come to my attention that ffmpeg does not have an encoder for exr, all I 
want to do right now is take existing EXRs and half the resolution, however 
this doesn't seem to work.


Any tips?


Don't use ffmpeg, but use OpenImageIO (oiio) or ImageMagick.
If you don't find binaries around, you can check out my viewer (mrViewer 
with binary releases at sourceforge) that comes with a copy of oiiotool 
and ImageMagick's convert.


--
Gonzalo Garramuño

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[FFmpeg-user] FFMpeg Exr Encoder

[Matthew . Alexander - The Empire Post]

Hi,


I've been trying to use ffmpeg to speed up processes here at work, however it 
has come to my attention that ffmpeg does not have an encoder for exr, all I 
want to do right now is take existing EXRs and half the resolution, however 
this doesn't seem to work.


Any tips?


The Code i'm using:

ffmpeg -i JumbleFalls_419_C001_Reverse_bg_FinalImage.%4d.exr -c:v copy -s 0x0 
test.%4d.exr


Regards,
Matthew.

Matthew Alexander: IT & IO
The Empire Post

36 Agnes St, Fortitude Valley 4006, Qld
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