15. June 2012

What is YSoft SafeQ?

:-D

You can find more  Y Soft videos at Youtube.

17. April 2011

How to store video stream from Airlive camera

Airlive OD-325HD is quite good outdoor camera with night vision. This feature is quite useful when you need to monitor shop or outdoor areas.

OD-325HD camera is able to send video stream and images via TCP/IP.

How to dump image from the camera?

Wget can do all the magic.

wget "http://192.168.1.1/image.cgi?resolution=1280x1024" \
 --user=username\
 --password=somepass

What about video stream?

In this case we will need mencoder. This tool is able to read RTSP stream and store it into the file. I was playing with parameters until I found configuration for OD-325HD.

Note for Debian users: I suggest to use version from debian-multimedia.org. You can add following line into /etc/apt/sources.list:

deb http://www.debian-multimedia.org/ stable main

You can dump stream using following command:

mencoder  -v rtsp://username:somepass@192.168.1.1:554/video.mp4 \
 -rtsp-stream-over-tcp \
 -oac copy -ovc lavc -lavcopts vcodec=mpeg4 -o dump.avi

VLC plays stored video without problem. Note: Windows Media Player has some problems with playing this kind of data.

I found a lot of useful information at Covex page.

26. February 2011

Apps for Google Android – Video

Video recording from my talk about development of applications for Google Android is available at mojandroid.sk.

This video is available thanks to Fero Chovaňák.

5. January 2011

HTML5 native video

Do you want to embed video in your web site?

Oh, that’s easy. Just use video tag. :-)

Really? It’s little bit more complicated right now.

Stephanie Sullivan Rewis from W3Conversions explains details about HTML5 video and how to use fallbacks. She explains how to get rid of some quirks caused by modern web browsers.

Part 1: Understanding HTML5

Part 2: Getting started

Part 3: Maximizing HTML5 video access with Flash

Part 4: Flash with HTML5 fallback – choosing path

1. January 2011

WordPress – Raw HTML and problem with videos

When you want to embed video from Youtube or Vimeo in WordPress article you just enter URL of video into text.

There is one very useful plugin Raw HTML. This plugins allows you to include HTML content in post.

I was facing strange issue. When I turned on Raw HTML plugin then all embed videos stopped working. I was searching for cause of the problem. It seems that there is problem with priority of filter "wpautop" in Raw HTML code.

Original source from Raw HTML contains following code - raw_html.php - line: 139

add_filter( $tag, 'maybe_'.$func, 3 );

Some WordPress instances simply does not work with this value. I was playing with this priority value. I changed it to 8 and video started working again.

add_filter( $tag, 'maybe_'.$func, 8 );

Default installation of WordPress does not have this problem with Raw HTML plugin.

Now you can enjoy embed videos again.

15. December 2010

Codedependent – efekty

Jednou z veľkých výhod Flexu je možnosť používania efektov.

Dobré použitie efektov môže spríjemniť prácu s aplikáciou. Na tv.adobe.com sa nachádza séria videí pod názvom Codedependent, kde Chet Haase postupne ukazuje, ako použiť efekty.

Chet je naviac artorom knižky Flex 4 Fun.

12. December 2010

Aurora Borealis v Tromsø

Zdravím Mišúa a Maťu :-)

Aurora Borealis timelapse HD - Tromsø 2010 from Tor Even Mathisen on Vimeo.

27. October 2010

Najmenší film na svete

Fantastické.

Ako to natočili? Pomocou mobilu Nokia N8, mikroskopu a 3D tlačiarne.

Zdroj: John Nack

19. September 2010

Záznam z prednášky – Když něco rozeberem, tak leda debuggerem

Záznam z mojej minuloročnej prednášky z WebExpa 2009 – Když něco rozeberem, tak leda debuggerem. Ďakujem tímu WebExpa za spracovanie záznamu.

BTW: Nezabudnite sa zúčastniť aj WebExpa 2010, ktoré sa bude konať už za pár dní.

16. April 2010

Nahrávanie obrazovky pomocou Jing

Pokiaľ potrebujete jednoducho a rýchlo nahrať krátky screencast, môžete použiť napríklad Jing.

Pracuje sa s ním veľmi jednoducho. Vyberiete si región obrazovky, ktorý chcete zaznamenať a spustíte nahrávanie. Jing umožňuje kombinovať nahrávanie obrazovky s webkamerou.

Výsledok môžete uložiť napríklad do formátu MP4. Použivatelia WordPressu môžu vložiť toto video do stránky pomocou pluginu Flow Player for WordPress alebo video nahrať na Youtube.

Pomcou Jingu som vytvoril napríklad screencast k nástroju Screen a krátky tutoriál k používaniu Adobe Flash Builder 4.

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