David Tavarez's Home at davidtavarez.com http://www.davidtavarez.com Just another weblog... Tue, 22 Dec 2009 00:57:27 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 Giving an opportunity to OpenSuse http://www.davidtavarez.com/archives/giving-an-opportunity-to-opensuse/ http://www.davidtavarez.com/archives/giving-an-opportunity-to-opensuse/#comments Tue, 22 Dec 2009 00:52:53 +0000 david http://www.davidtavarez.com/?p=493 After trying Kubuntu 9.10 and Fedora 12, I'm going to try with OpenSuse 11.2; I really love KDE 4 but is too heavy. Fedora 12 is OK, but I could not understand why I (as a regular user) need SELinux active with almost all blocked, and YES I Do deactivate SELinux, but always was something new (tmp files, iptables, kernel reports...).

After few reviews, I decided to try with OpenSuse 11.2 and this is my desktop:

OpenSUSE 11.2

OpenSUSE 11.2

]]> http://www.davidtavarez.com/archives/giving-an-opportunity-to-opensuse/feed/ 0 Face detection using PHP http://www.davidtavarez.com/archives/face-detection-using-php/ http://www.davidtavarez.com/archives/face-detection-using-php/#comments Mon, 21 Dec 2009 15:33:53 +0000 david http://www.davidtavarez.com/?p=489 Recently I heard about OpenCV and some applications for AI using this library. This is a interesting topic and very powerful. There is many examples in C, C++ and Python, but I really surprised because I found 2 implementations in PHP.

First of all, What Face Detection/Recognition is?

Is a computer technology that determines the locations and sizes of human faces in arbitrary (digital) images. It detects facial features and ignores anything else, such as buildings, trees and bodies.

How to do this in PHP?

OpenCV wrapper to detect faces with PHP. The extension offers the two new functions: face_count() and face_detect(). In princible, they differ only by their return value. The first returns only the number of faces found on the given image and the other an associative array of their coordinates. face_count() serves only to save the loops for counting. Examples:
OpenCV in PHP example 1
OpenCV in PHP example 2

Face detection in pure PHP (without OpenCV). This is a PHP Class to face recognition without OpenCV, it use an data file, but not external libraries. We can use it with few code:

 
$detector = new Face_Detector('detection.dat');
$detector->face_detect('maurice_svay_150.jpg');
$detector->toJpeg();
 

Example:
Example FaceDetection

Enjoy it!

]]> http://www.davidtavarez.com/archives/face-detection-using-php/feed/ 1 Google Chrome for Linux (Official beta) http://www.davidtavarez.com/archives/google-chrome-for-linux-official-beta/ http://www.davidtavarez.com/archives/google-chrome-for-linux-official-beta/#comments Tue, 08 Dec 2009 18:22:19 +0000 david http://www.davidtavarez.com/?p=486 Hello everybody out there using Linux -

Google Chrome is go for beta on Linux! Thanks to the many Chromium and WebKit developers who helped make Google Chrome a lean, mean browsing machine. Here are a few fun facts from us on the Google Chrome for Linux team:

60,000 lines of Linux-specific code written
23 developer builds
2,713 Linux-specific bugs fixed
12 external committers and bug editors to the Google Chrome for Linux code base, 48 external code contributors

]]> http://www.davidtavarez.com/archives/google-chrome-for-linux-official-beta/feed/ 0 Application crashed with an unhandled SIGSEGV Adobe Air (Linux) http://www.davidtavarez.com/archives/application-crashed-with-an-unhandled-sigsegv-adobe-air-linux/ http://www.davidtavarez.com/archives/application-crashed-with-an-unhandled-sigsegv-adobe-air-linux/#comments Sun, 06 Dec 2009 03:30:42 +0000 david http://www.davidtavarez.com/?p=484 If you are trying to install any Adobe Air application on Linux and when you run airappinstaller you are getting this error:

Application crashed with an unhandled SIGSEGV
Crashlog has been dumped in /tmp/airCrashLogs/1205_2233_5vRnKP

Try

rm -fr /etc/opt/Adobe/certificates/crypt/

After installing Adobe Air, and run the airappinstaller as root.

]]> http://www.davidtavarez.com/archives/application-crashed-with-an-unhandled-sigsegv-adobe-air-linux/feed/ 2 FFmpeg for Windows with AMR Support http://www.davidtavarez.com/archives/ffmpeg-for-windows-with-amr-support/ http://www.davidtavarez.com/archives/ffmpeg-for-windows-with-amr-support/#comments Fri, 04 Dec 2009 13:42:24 +0000 david http://www.davidtavarez.com/?p=480 FFmpeg is a complete, cross-platform solution to record, convert and stream audio and video. It includes libavcodec - the leading audio/video codec library.

This build is not mine, I found it on internet, but I wanted to share it because is very complete, so just Download ffmpeg now. This build is perfect to encode/decode video from mobiles. You can decode MP4 and 3GPP very easy.

This compilation is done using GCC 4.3.0 20080305 / MinGW 20080502 for Win32. The GCC-built archives of statically-linkable external libraries used in this compilation are available for download at Komeil’s SkyDrive FFmpeg libraries trunk. Also you can find direct download links to each static library in “Build Version” column of “External Libraries” table below. Once downloaded successfully, you need to extract them right into your “MinGW” folder, since the CAB archives include LIB (containing .a library files) and INCLUDE (containing .h header files) directories fittingly. Please note FFmpeg is a stand-alone portable executable, and these libraries are provided for experimentalists interested in compiling FFmpeg by themselves.

Configuration: --enable-memalign-hack --extra-cflags=-fno-common --enable-static --disable-shared --disable-debug --enable-gpl --enable-nonfree --enable-avfilter --enable-avfilter-lavf --enable-avisynth --enable-postproc --enable-pthreads --enable-libamr-nb --enable-libamr-wb --enable-libgsm --enable-libfaac --enable-libfaad --enable-libmp3lame --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libx264 --enable-libxvid

Supported File Formats

This is the list of all media formats FFmpeg SVN-r17988-Komeil can decode from and/or encode to:

Name Description Decode Encode
3g2 3GP2 format X
3gp 3GP format X
4xm 4X Technologies format X
IFF IFF format X
ISS Funcom ISS format X
MTV MTV format X
RoQ raw id RoQ format X X
aac raw ADTS AAC X
ac3 raw AC-3 X X
adts ADTS AAC X
aiff Audio IFF X X
alaw PCM A-law format X X
amr 3GPP AMR file format X X
apc CRYO APC format X
ape Monkey’s Audio X
asf ASF format X X
asf_stream ASF format X
ass SSA/SS format X X
au SUN AU format X X
avi AVI format X X
avm2 Flash 9 (AVM2) format X
avs AVISynt X
bethsoftvid Bethesda Softworks VID format X
bfi Brute Force & Ignorance X
c93 Interplay C93 X
cavsvideo raw Chinese AVS video X
crc CRC testing format X
daud D-Cinema audio format X X
dirac raw Dirac X X
dnxhd raw DNxHD (SMPTE VC-3) X X
dsicin Delphine Software International CIN format X
dts raw DTS X X
dv DV video format X X
dvd MPEG-2 PS format (DVD VOB) X
dxa DXA X
ea Electronic Ars Multimedia Format X
ea_cdata Electronic Arts cdata X
eac3 raw E-AC-3 X X
f32be PCM 32 bit floating-point big-endian format X X
f32le PCM 32 bit floating-point little-endian format X X
f64be PCM 64 bit floating-point big-endian format X X
f64le PCM 64 bit floating-point little-endian format X X
ffm FFM (FFserver live feed) format X X
film_cpk Sega FILM/CPK format X
flac raw FLAC X X
flic FLI/FLC/FLX animation format X
flv FLV format X X
framecrc framecrc testing format X
gif GIF Animation X
gsm raw GSM X
gx GXF format X X
h261 raw H.261 X X
h263 raw H.263 X X
h264 raw H.264 video format X X
idcin id Cinematic format X
image2 image2 sequence X X
image2pipe piped image2 sequence X X
ingenient raw Ingenient MJPEG X
ipmovie Interplay MVE format X
ipod iPod H.264 MP4 format X
lmlm4 lmlm4 raw format X
m4v raw MPEG-4 video format X X
matroska Matroska file format X X
mjpeg raw MJPEG video X X
mlp raw MLP X
mm American Laser Games MM format X
mmf Yamaha SMAF X X
mov MOV format X
mov,mp4,m4a,3gp,3g2,mj2 QuickTime/MPEG-4/Motion JPEG 2000 format X
mp2 MPEG udio layer 2 X
mp3 MPEG audio layer 3 X X
mp4 MP4 format X
mpc Musepack X
mpc8 Musepack SV8 X
mpeg MPEG-1 System forma X X
mpeg1video raw MPEG-1 video X
mpeg2video raw MPEG-2 video X
mpegts MPEG-2 transport stream format X X
mpetsraw MPEG-2 raw transport stream format X
mpegvideo raw MPEG video X
mpjpeg MIME multipart JPEG format X
msnwctcp MSN TCP Webcam stream X
mulaw PCM mu-law format X X
mvi Motion Pixels VI format X
mxf Material eXchange Format X X
mxf_d10 Material eXchange Format, D-10 Mapping X
nc NC camera feed format X
nsv Nullsoft Streaming Video X
null raw null video format X
nut NUT format X X
nuv NuppelVideo format X
ogg Ogg X X
oma Sony OpenMG audio X
psp PSP MP4 format X
psxstr Sony Playstation STR format X
pva TechnoTrend PVA file and stream format X
r3d REDCODE R3D format X
rawvideo raw video format X X
rcv VC-1 test bitstream X
redir Redirector format X
rl2 RL2 format X
rm RealMedia format X X
rpl RPL/ARMovie format X
rt RTP output format X
rtsp RTSP input format X
s16be PCM signed 16 bit big-endian format X X
s16le PCM signed 16 bit little-endian format X X
s24be CM signed 24 bit big-endian format X X
s24le PCM signed 24 bit little-endian format X X
s32be PCM signed 32 bit big-endian format X X
s32le PCM signed 32 bit little-endian format X X
s8 PCM signed 8 bit format X X
sdp SDP X
shn raw Shorten X
siff Beam Software SIFF X
smk Smacker video X
sol Sierra SOL format X
svcd MPEG-2 PS format (VOB) X
swf Flash format X X
thp THP X
tiertexseq Tiertex Limited SEQ format X
tta True Audio X
txd Renderware TeXture Dictioary X
u16be PCM unsigned 16 bit big-endian format X X
u16le PCM unsigned 16 bit little-endian format X X
u24be PCM unsigned 24 bit big-endian format X X
u24le PCM unsigned 24 bit little-endian format X X
u32be PCM unsigned 32 bit big-endian format X X
u32le PCM unsigned 32 bit little-endian format X X
u8 PCM unsigned 8 bit format X X
vc1 raw VC-1 X
vc1test VC-1 test bitstream format X
vcd MPEG-1 System format (VCD) X
vfwcap VFW video capture X
vmd Sierra VMD format X
vob MPEG-2 PS format (VOB) X
voc Creative Voice file format X X
vqf Nippon Telegraph and elephone Corporation (NTT) TwinVQ X
wav WAV format X X
wc3movie Wing Commander III movie format X
wsaud Westwood Studios audio format X
wsvqa Westwood Studios VQA format X
wv WavPack X
xa Maxis XA File Format X
yuv4mpegpipe YUV4MPEG pipe format X X

Happy decoding/encoding!

]]> http://www.davidtavarez.com/archives/ffmpeg-for-windows-with-amr-support/feed/ 2 Twitter Updates for 2009-11-17 http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-17/ http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-17/#comments Tue, 17 Nov 2009 11:00:00 +0000 david http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-17/
  • RT @arroba101: Escucha @DahianaJ por @arroba101 a través de http://arroba101.com #apoyalolocal #
  • RT @psanders: Para #sermasproductivo necesitas mantener tu mente sana. #
  • @Nehemoth habria que ver las peliculas de Disney que son ricas en contenido y efectos... por cierto, me gusta tu blog :) in reply to Nehemoth #
  • @ingluisjimenez @c0olcast gracias al apoyo a la iniciativa "Apoya lo Local!" http://microuri.com/ne :D #apoyalolocal in reply to ingluisjimenez #
  • @twitteliax cuando puedas date un vuelta por aquí http://microuri.com/ne y #apoyalolocal ;) #
  • @twitteliax @ingluisjimenez @c0olcast gracias por el apoyo a la iniciativa, acabo de publicar un "plan de acción" http://microuri.com/ne #
  • @rockrd @psanders @tutico @titoyees @himself @ANIMEN @eBretton @junihh @cepichardo @cchez esperando sus comentarios n http://microuri.com/ne #
  • @seodominicana estás detrás de algún proxy? in reply to seodominicana #
  • @ANIMEN muchas gracias por el comment :) in reply to ANIMEN #
  • working again luego de 0 segundos de reposo :( #
    • ]]>     http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-17/feed/ 0     Twitter Updates for 2009-11-16 http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-16/ http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-16/#comments Mon, 16 Nov 2009 11:00:00 +0000 david http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-16/
  • buen dia a todos... listo para el trabajo... espero que tengan un gran dia :) #
  • Apoya lo Local! Destacando proyectos e iniciativas locales... http://microuri.com/ne #apoyalolocal #
    • ]]>     http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-16/feed/ 0     Twitter Updates for 2009-11-15 http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-15/ http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-15/#comments Sun, 15 Nov 2009 11:00:00 +0000 david http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-15/
  • @rodrigopolo leyendo la respuesta, muchas gracias por toda la información :) #
  • @aecsocial de verdad gracias por usar http://microuri.com/ie :) in reply to aecsocial #
  • una gran ayuda de @rodrigopolo + motivación + inspiración = Larga Noche de Programación!! :D #
  • @rodrigopolo muchas gracias por la ayuda, hoy mismo pruebo todo, mañana te estoy dando respuestas.... repito, gracias de verdad :) in reply to rodrigopolo #
  • síp... mientras la mayoría estará esta noche en la calle bebiendo, yo estaré en casa programando... jejeje :) #
    • ]]>     http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-15/feed/ 0     Twitter Updates for 2009-11-14 http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-14/ http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-14/#comments Sat, 14 Nov 2009 11:00:00 +0000 david http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-14/
  • @aecsocial felicidades @juancarlosmen es un gran profesor con un deseo enorme siempre de ayudar a sus estudiantes, gran hombre! in reply to aecsocial #
  • @aecsocial apoyemos lo nuestro, utilizen el acortador de url de @wm3ndez -> http://www.microuri.com/ :) in reply to aecsocial #
  • @Joelyabreu tomate un redbull con un advil! jejej :) que te mejores, linda in reply to Joelyabreu #
  • @rodrigopolo cuando puedas me confirmas si te llegó una correspodencia que te envié ayer, gracias. #
  • Jon "maddog" Hall en "Cómo hacer dinero con el software libre" #cpartymx http://tv.campus-party.org/ (via @boxbyte) #
  • decidido, me cambio de php a python como arma principal... #
  • @alexeitd sube las fotos a @putintwt http://putintwt.com/ :) in reply to alexeitd #
  • ya que Office 2007 puede correr en Wine (http://microuri.com/8d), talvés ¿me anime a comprarlo? #
  • @wm3ndez no tienes buscador en tu blog :p #
  • llevo 2 horas y 15 minutos esperando a que SQLServer 2008 terminé de actualizarme 742,120 registros utilizando un función escalar... #
  • @titoyees nunca he corrido Office, no voy a pagar por él pero tampoco voy a piratearlo :p in reply to titoyees #
  • @titoyees eso no lo niego, Office es lo maximo! pero es super caro! realmente OpenOffice se ve como un feto delante de Office 2007 u 2008 in reply to titoyees #
  • @wm3ndez jejejejej lol in reply to wm3ndez #
  • @titoyees la versión 2007 al menos? genial! gracias por el tip... en la pucmm dan gratis la 2003, pero para usar office 2003 uso openoffice in reply to titoyees #
  • @Nehemoth para urls largas, usa @microuri el acortador de url escrito @wm3ndez [apoyemos lo local] http://www.microuri.com/ in reply to Nehemoth #
  • a ver si iniciamos una campaña: "Apoyemos lo Local" o algo así... para motivar y activar el talento de los desarrolladores dominicanos... #
  • @Nehemoth @wm3ndez ahi tienes una sugerencia... otra cosa, ya crea una interfaz friendly! jejeje lol in reply to Nehemoth #
  • @wm3ndez lo genial es que todo aquel que quiera podrá vender su códugi a través de http://2dollarscode.com in reply to wm3ndez #
  • @Susana_Rod pronto podrás subir videos a twitter de manera más rápida y simple utilizando http://putintwt.com/ desarrollado por un servidor in reply to Susana_Rod #
  • @marceloferreiro de mi parte, nuevo es mi articulo en maestrosdelweb y un encoder de video con ffmpeg+php que me esta dando dolor de cabeza in reply to marceloferreiro #
  • @Susana_Rod felicitame a @juancarlosmen por favor :D in reply to Susana_Rod #
  • Sudamérica + África = T-Rex (WTF?) http://is.gd/4Up9v (via @daetherius) #
  • @psanders si, bastate :p in reply to psanders #
  • @Nehemoth jejejejjej lol in reply to Nehemoth #
  • @wm3ndez ejejeje balbaro! jejej lol in reply to wm3ndez #
  • @junihh jejejej siii! hay problemas!!!! farmville deberia desaparecer! jeje in reply to junihh #
  • ¿el software propietario garantizar la seguridad del mismo? Si fuera cierto Microsoft debería ser el sistema más seguro del mundo y no lo es #
  • ¿el software propietario garantiza la seguridad del mismo? si eso fuera cierto Windows debería ser el sistema más seguro y no lo es :p #
  • @hectorvaldz que mal... todos hemos pasado por eso :p in reply to hectorvaldz #
  • @ROCKRD Hamlet Batista parece un típico vendedor de talleres de emprendimiento barato... in reply to ROCKRD #
  • @ROCKRD ""...crear nuevas flujos de efectivo a muy bajo costo con inmensa facilidad..." inmensa facilidad??!!! jejejjejej lol in reply to ROCKRD #
  • emprender un negocio en internet que sea exitoso no es para nada fácil, aun dominando los principios y herramientas #
  • @rodrigopolo y yo aun esperando respuesta :P jeje in reply to rodrigopolo #
  • When you work for others, you are at their mercy. They own your work; they own you. Your creative spirit is squashed... #
  • @cvander espero estar en alguna de esas listas... al menos en "desconocidos" jejejejej lol in reply to cvander #
  • @hectorvaldz aún en producción?!!! in reply to hectorvaldz #
  • @hectorvaldz después amanezco pogramándo :p in reply to hectorvaldz #
  • @hectorvaldz jejejejejejjejejjejeje debiste decirme antes, para cruzar por ayá! in reply to hectorvaldz #
    • ]]>     http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-14/feed/ 0     Twitter Updates for 2009-11-13 http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-13/ http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-13/#comments Fri, 13 Nov 2009 11:00:00 +0000 david http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-13/
  • ¿Microsoft robando código GPL de su CodePlex? http://bit.ly/2M27p4 #
  • @betacar excelente punto, coincido totalmente. in reply to betacar #
  • @alopezvalerio hasta bien suena: "Llévatelo @jack!" in reply to alopezvalerio #
  • qusieria tener una vida normal... al menos, días normales... pero no, rayos!, tenía que ser diferente a los demás... #
  • @CV31 great game last night, felicidades!... los dominicanos somos buenos en todo! :) in reply to CV31 #
  • @Joelyabreu gracias :) in reply to Joelyabreu #
  • @Mite_Nishio cuando leia tus articulos en el periodico nunca imaginé que veias la lucha libre ejejej ¿aun sigues escribiendo? in reply to Mite_Nishio #
  • All your dreams can come true if you have the courage to pursue them... #
  • @CristyCoste genial :D cualquier cosa cuenta conmigo in reply to CristyCoste #
  • @tuitico ni yo in reply to tuitico #
  • @JorgeMudry CodeIngniter :) in reply to JorgeMudry #
  • @hipolitodelgado Viernesss!!! jejjejej lol in reply to hipolitodelgado #
  • @psanders síp... y ¿qué cuentas? ¿cómo anda todo? in reply to psanders #
    • ]]>     http://www.davidtavarez.com/archives/twitter-updates-for-2009-11-13/feed/ 0