[Rock-dev] Avi export for log files

[Matthias Goldhoorn]

To add one other library i trow this software into the pool:

http://spacegit.dfki.uni-bremen.de/dfki-image-processing/video_writer

This is not used too for a longer time but worked in the past.
I only adapted this once, not sure if this still work,

I think there is a lot of intreest in an generiv video-exporter but a 
usal there are no real rescources availible for such  an "helper tool".

Feel free to inplement/extend something in coop with us developers.

Greetings,
Matthias

On 24.06.2013 13:16, Fabian Franzen wrote:
> Hmm, i am not sure if this is the optimal solution... When I create a
> presentation quickly at 1 o'clock in the morning i normally doesn't want
> to look up ffmpeg commands or write a script to connect some exisiting
> tasks to do video encoding. ;-)
>
> I took a quick lock at the source code and noticed that rock-export
> uses the frame helper to export the images using opencv. OpenCV also
> provides a nice way to export and encode multiple pictures as mpg or
> h264 video...
>
> Is there interest in a patch for rock-export that adds a way to
> directly export camera pictures to an h264 or mpg avi? If there is some
> interest, then i will try to add it ;-)
>
> Regards,
> Fabian
>
> Am 2013-06-21 08:32, schrieb Steffen Planthaber:
>> Hi,
>>
>>   After you got the export of several frames, from rock-export giving
>> i.e. --start 0 --end 100, you can use ffmpeg to put them together in
>> any format. ffmpeg (mplayer) supports it by using the "image2" format
>> as input for ffmpeg:
>>
>>   $>  ffmpeg -f image2 image%02d.png out.mpg
>>
>>   puts together all images with a two digit number image01.png,
>> image02.png
>>
>>   You'll need leading zeros for a correct order in the video.
>>   I don't knot the output filename of rock-export, but the "%02d" is
>> for two digit numbers, %03d for three.
>>
>>   For bitrates, resolution and stuff see the ffmpeg manual.
>>
>>   Best,
>>   Steffen
>>
>>   Am 21.06.2013 00:35, schrieb Fabian Franzen:
>>
>>> Hi,
>>>
>>> is it possible in rock to convert/export a log file with frames to a
>>> movie file format like MPEG or avi? If looked around in rock and today
>>> and the only way I found is via the png/jpeg export of rock-export...
>>> I have tried that command with my log file but no pictures was
>>> created...
>>>
>>> My idea was to export a camera log of avalon for the open campus day.
>>> I finally used some non rock log files for this, but I can't belive
>>> that there is no easy way for rock log files....
>>>
>>> Regards
>>> Fabian
>>>
>>> _______________________________________________
>>> Rock-dev mailing list
>>> Rock-dev at dfki.de
>>> http://www.dfki.de/mailman/cgi-bin/listinfo/rock-dev [1]
>> --
>>   Steffen Planthaber
>>   Weltraumrobotik
>>
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-- 
  Dipl.-Inf. Matthias Goldhoorn
  Space and Underwater Robotic

  Universität Bremen
  FB 3 - Mathematik und Informatik
  AG Robotik
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