Hallo Group Members.
I have to render 1000 avi files to *.mp4 ones. For each file separatelly.
All of them should be rendered with the same kdenlive params: using 6000k/2pass/force Interlace.

Setting rendering process for each of 1000 files is tedious task.

Is there a way to set it up in automatic way, some batch loop:
for i in *.avi
do
kdenlive someProjectTemplate_6000k_2pass_forceInterlace $i $i.mp4
done

?
best regards,
Paul

I don't think this can be done in kdenlive - but I'm not certain. I'm sure it has been done using the command line tools ffmpeg or mencoder though. Seems pretty straight forward except for the 2 pass part which may complicate things a little.
Maybe see if anyone posts something here or google it.
Good Luck.

juzerek, cannot you simply use ffmpeg directly? You only want to transcode, right? This should be an easy task. I'd ask on freenode#ffmpeg for the precise ffmpeg flags because I always get them the wrong way round.

I'm interested in this myself. Someone got a link, where batch-rendering for ffmpeg is discribed?

Just throwing in some bookmarks. For specific needs see google or #freenode.
http://howto-pages.org/ffmpeg/
http://linux.byexamples.com/archives/295/convert-audio-encoding-format-with-ffmpeg/
http://www.linuxjournal.com/article/8517

Again thanks a lot Granjow,

after reading through your links I googled a littel by myself and here is my result, for anyone who has no idea about creating a shellscript(like I had none):

To automatically render all files in a folder - in my case m2ts-files - to another format - in my case .avi with codec mjpeg/mp3 - you have to

1) create a shell script file -> right mouseclick in nautilus "create document" -> "empty file"
2) rename it into "your preferred filename".sh (for me it was "m2ts2avi.sh")
3) make the file executable -> right click on it properties->permissions->allow executing file as program
4)open with texteditor
5)enter the script:

for f in *.m2ts;
do ffmpeg -i "$f" -f avi -acodec libmp3lame -ab 256k -ar 48000 -vcodec mjpeg -s 1920x1080 -b 30000k -deinterlace "${f%hdv.m2ts}.avi";
done

6) move the shell script file into the directory your sourcefiles are lying.
7) run the shell script file in a terminal

I personally don't know anything about this code but I can guess. And I guess f is a variable defined in the first line as all files ending with .m2ts.
The second line is what performs the action:
starting ffmpeg defining the input file as "f", means all files ending with .m2ts
at the back of the second line is the outputfilname defined.
beneath input and output lies the ffmpeg options I chose for converting
done :)