[Paraview] [EXTERNAL] Re: Screenshots to movies

Tue May 15 21:51:11 EDT 2018

Francesco,

There was a known bug/feature in the .avi writer in ParaView 5.4.1, where it wrote a version of .avi that was not compatible with the OS X Quicktime player (the OS X default) and the Windows Media player.  This has been corrected in ParaView 5.5.0.  (I just tested them on my MacBook.)

Alan

On 5/15/18, 4:42 PM, "Francesco Poli" <invernomuto at paranoici.org> wrote:

    On Tue, 15 May 2018 13:11:59 -0400 Utkarsh Ayachit wrote:

    > ffmeg is your friend on linux. It needs a little figuring things out, but
    > both resizing images and then converting them to videos is possible.

    ParaView used to also be able to save animations as MJPEG AVI
    (.avi) files.

    Unfortunately, the version currently in Debian GNU/Linux (unstable and
    testing) seems to have a regression and is unable to save .avi files.
    See my [bug report](https://bugs.debian.org/892293) on the Debian BTS...

    My current workaround is:

     → save animations as PNG images

     → convert them with

       $ ffmpeg -f image2 -framerate 5 -i input.%04d.png \
                -vcodec mjpeg -pix_fmt yuv420p -q:v 3 output.avi

    Please note that ParaView used to save .avi files with pixel format
    yuvj422p (until it stopped doing so, because of the above mentioned
    regression), but I started to use pixel format yuv420p, to work around
    a [bug](https://bugs.debian.org/863663) in GStreamer.
    With this pixel format the animation may be correctly played by
    GStreamer on GNU/Linux and hence, when embedded in a PDF page, by
    pdf-presenter-console on GNU/Linux, as well as by Acrobat Reader DC on
    Windows...

    If anyone knows any better strategy, comments are welcome!

    -- 
     http://www.inventati.org/frx/
     There's not a second to spare! To the laboratory!
    ..................................................... Francesco Poli .
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