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Snippet: FLV video encode

By rui, on August 28th, 2009

Using mencoder in Linux, we can convert any video to FLV and embed it in a web page with Flowplayer. In this sample video is encoded at 320×240 300 kbps and audio at 56kbps:

# mencoder -forceidx -of lavf -oac mp3lame -lameopts abr:br=56 -srate 22050 -ovc lavc -lavcopts vcodec=flv:vbitrate=300:mbd=2:mv0:trell:v4mv:cbp:last_pred=3 -vf scale=320:240 -o out.flv . . . → Read More: Snippet: FLV video encode

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Snippet: Join PDFs with pdftk

By rui, on June 28th, 2009

With pdftk we can (as well as a lot of other PDF-related operations) join PDFs in Linux, wich is something very useful. This is one example:

# pdftk file1.pdf file2.pdf file3.pdf cat output file_output.pdf

For windows there is also Pdftk Builder, with a graphical interface.

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Snippet: Hacer un screencast con Byzanz

By rui, on June 14th, 2009

Esta herramienta nos permite generar screencasts (grabaciones de nuestro escritorio) en formato GIF animado (sin sonido, claro). Por ejemplo, para generar un screencast de 60 segundos, y que espere 2 segundos para empezar a grabar:

# byzanz-record -c -d 60 –delay 2 screencast.gif

La -c es para que grabe el movimiento del cursor.

Hay . . . → Read More: Snippet: Hacer un screencast con Byzanz

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