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• Introducing CI Status : the build dashboard for Travis CI

  6 octobre 2014, par Matthieu Napoli — Development, Meta

  The Piwik team has been working on a new tool for developers : CI Status.

  CI Status is a dashboard displaying the latest build status for all your repositories set up on Travis-CI.org or Travis-CI.com. The usage is meant to be as simple as possible : just login using your GitHub account and enjoy.

  CI-status.com

  Give CI Status a try now at ci-status.com !

  

  On your server : Setup CI Status

  The application is open source (released under the GNU Affero General Public License) and developed on GitHub. You are encouraged to contribute to the GitHub project if you find any bug or if you want to add new features. Since it was developed with reusability in mind, you can also install and maintain the application on your own server.

  We hope you will find this tool as useful as we do !

• Unable to install ffmpeg-php on Ubuntu 14.04

  29 septembre 2014, par Balaraman L

  I downloaded FFmpeg (version 2.2.3) and compiled with —disable-yasm and —enable-shared configuration and installed.

  I then downloaded ffmpeg-php extension from here - http://sourceforge.net/projects/ffmpeg-php/files/ffmpeg-php/0.6.0/

  I was able to phpize and configure successfully.

  phpize output :

  Configuring for:
  
  PHP Api Version:         20121113
  
  Zend Module Api No:      20121212
  
  Zend Extension Api No:   220121212

  php —version output :

  PHP 5.5.9-1ubuntu4.4 (cli) (built: Sep  4 2014 06:56:34) 
  
  Copyright (c) 1997-2014 The PHP Group
  
  Zend Engine v2.5.0, Copyright (c) 1998-2014 Zend Technologies
  
      with Zend OPcache v7.0.3, Copyright (c) 1999-2014, by Zend Technologies

  But, when I try to make install my ffmpeg-php extension after successfully configuring, I am getting following error.

  Error log :

  /bin/bash /tmp/ffmpeg-php-0.6.0/libtool --mode=compile cc  -I. -I/tmp/ffmpeg-php-0.6.0 -DPHP_ATOM_INC -I/tmp/ffmpeg-php-0.6.0/include -I/tmp/ffmpeg-php-0.6.0/main -I/tmp/ffmpeg-php-0.6.0 -I/usr/include/php5 -I/usr/include/php5/main -I/usr/include/php5/TSRM -I/usr/include/php5/Zend -I/usr/include/php5/ext -I/usr/include/php5/ext/date/lib -I/usr/local/include/libavcodec/ -I/usr/local/include/libavformat/ -I/usr/local/include/libavutil/ -I/usr/local/include/libswscale/ -I/usr/local/include/libavfilter/ -I/usr/local/include/libavdevice/  -DHAVE_CONFIG_H  -g -O2 -Wall -fno-strict-aliasing   -c /tmp/ffmpeg-php-0.6.0/ffmpeg-php.c -o ffmpeg-php.lo 
  
  libtool: compile:  cc -I. -I/tmp/ffmpeg-php-0.6.0 -DPHP_ATOM_INC -I/tmp/ffmpeg-php-0.6.0/include -I/tmp/ffmpeg-php-0.6.0/main -I/tmp/ffmpeg-php-0.6.0 -I/usr/include/php5 -I/usr/include/php5/main -I/usr/include/php5/TSRM -I/usr/include/php5/Zend -I/usr/include/php5/ext -I/usr/include/php5/ext/date/lib -I/usr/local/include/libavcodec/ -I/usr/local/include/libavformat/ -I/usr/local/include/libavutil/ -I/usr/local/include/libswscale/ -I/usr/local/include/libavfilter/ -I/usr/local/include/libavdevice/ -DHAVE_CONFIG_H -g -O2 -Wall -fno-strict-aliasing -c /tmp/ffmpeg-php-0.6.0/ffmpeg-php.c  -fPIC -DPIC -o .libs/ffmpeg-php.o
  
  In file included from /usr/include/x86_64-linux-gnu/sys/stat.h:105:0,
  
                   from /usr/include/php5/main/php_streams.h:28,
  
                   from /usr/include/php5/main/php.h:396,
  
                   from /tmp/ffmpeg-php-0.6.0/ffmpeg-php.c:40:
  
  /usr/include/x86_64-linux-gnu/bits/stat.h:91:21: error: field 'st_atim' has incomplete type
  
       struct timespec st_atim;  /* Time of last access.  */
  
                       ^
  
  /usr/include/x86_64-linux-gnu/bits/stat.h:92:21: error: field 'st_mtim' has incomplete type
  
       struct timespec st_mtim;  /* Time of last modification.  */
  
                       ^
  
  /usr/include/x86_64-linux-gnu/bits/stat.h:93:21: error: field 'st_ctim' has incomplete type
  
       struct timespec st_ctim;  /* Time of last status change.  */
  
                       ^
  
  /usr/include/x86_64-linux-gnu/bits/stat.h:152:21: error: field 'st_atim' has incomplete type
  
       struct timespec st_atim;  /* Time of last access.  */
  
                       ^
  
  /usr/include/x86_64-linux-gnu/bits/stat.h:153:21: error: field 'st_mtim' has incomplete type
  
       struct timespec st_mtim;  /* Time of last modification.  */
  
                       ^
  
  /usr/include/x86_64-linux-gnu/bits/stat.h:154:21: error: field 'st_ctim' has incomplete type
  
       struct timespec st_ctim;  /* Time of last status change.  */
  
                       ^
  
  In file included from /usr/include/php5/main/php_streams.h:28:0,
  
                   from /usr/include/php5/main/php.h:396,
  
                   from /tmp/ffmpeg-php-0.6.0/ffmpeg-php.c:40:
  
  /usr/include/x86_64-linux-gnu/sys/stat.h:365:31: error: array type has incomplete element type
  
           const struct timespec __times[2],
  
                                 ^
  
  /usr/include/x86_64-linux-gnu/sys/stat.h:372:54: error: array type has incomplete element type
  
   extern int futimens (int __fd, const struct timespec __times[2]) __THROW;
  
                                                        ^
  
  In file included from /usr/include/php5/main/php.h:402:0,
  
                   from /tmp/ffmpeg-php-0.6.0/ffmpeg-php.c:40:
  
  /usr/include/php5/TSRM/tsrm_virtual_cwd.h:218:2: error: unknown type name 'time_t'
  
    time_t                         expires;
  
    ^
  
  /usr/include/php5/TSRM/tsrm_virtual_cwd.h:246:86: error: unknown type name 'time_t'
  
   CWD_API realpath_cache_bucket* realpath_cache_lookup(const char *path, int path_len, time_t t TSRMLS_DC);
  
                                                                                        ^
  
  /tmp/ffmpeg-php-0.6.0/ffmpeg-php.c: In function 'zm_startup_ffmpeg':
  
  /tmp/ffmpeg-php-0.6.0/ffmpeg-php.c:94:5: warning: implicit declaration of function 'avcodec_init' [-Wimplicit-function-declaration]
  
       avcodec_init();
  
       ^
  
  make: *** [ffmpeg-php.lo] Error 1

  How can I solve this ? Or is there any other php library which can be used to extract all metadata of a video like bit rate, frame rate etc ?

• Evolution of Multimedia Fiefdoms

  1er octobre 2014, par Multimedia Mike — General

  I want to examine how multimedia fiefdoms have risen and fallen through the years.

  
  
  

  Back in the day, the multimedia fiefdoms were built around the formats put forth by competing companies : there was Microsoft/WMV, Apple/MOV, and Real/RM as the big contenders. On2 always wanted to be a player in this arena but could never quite catch a break. A few brave contenders held the line for open source and also for the power users who desired one application that could handle everything (my original motivation for wanting to get into multimedia hacking).

  The computer desktop was the battleground for internet-based media stream. Whatever happened to those days ? Actually, if memory serves, Flash-based video streaming stepped on all of them.

  Over the last 6-7 years, the battleground has expanded to cover mobile devices, where Flash’s impact has… lessened. During this time, multimedia technology pretty well standardized on a particular stack, namely, the MPEG (MP4/H.264/AAC) stack.

  The belligerents in this war tried for years to effectively penetrate new territory, namely, the living room where the television lived. This had been slowgoing for years due to various user interface and content issues, but steadily improved.

  Last April, Amazon announced their entry into the set-top box market with the Fire TV. That was when it suddenly crystallized for me that the multimedia ecosystem has radically shifted. Now, the multimedia fiefdoms revolve around access to content via streaming services.

  Off the top of my head, here are some of the fiefdoms these days (fiefdoms I have experience using) :

  • Netflix (subscription streaming)
  • Amazon (subscription, rental, and purchased streaming)
  • Hulu Plus (subscription streaming)
  • Apple (rental and purchased media)

  I checked some results on Can I Stream.It ? (which I refer to often) and found a bunch more streaming fiefdoms such as Google (both Play and YouTube, which are separate services), Sony, Xbox 360, Crackle, Redbox Instant, Vudu, Target Ticket, Epix, Sony, SnagFilms, and XFINITY StreamPix. And surely, these are probably just services available in the United States ; I know other geographical regions have their own fiefdoms.

  What happened ?

  When I got into multimedia hacking, there were all these disparate, competing ecosystems. As a consumer, I didn’t care where the media came from, I just wanted to play it. That’s what inspired me to work on open source multimedia projects. Now I realize that I have the same problem 10-15 years later : there are multiple competing ecosystems. I might subscribe to fiefdoms X and Y, but am frustrated to learn that something I’d like to watch is only available through fiefdom Z. Very few of these fiefdoms can be penetrated using open source technology.

  I’m not really sure about the point about this whole post. Multimedia technology seems really standardized these days. But that’s probably just my perspective because I have spent way too long focusing on a few areas of multimedia technology such as audio and video coding. It’s interesting that all these services probably leverage the same limited number of codecs. Their differentiation comes from the catalog of content that each is able to license for streaming. There are different problems to solve in the multimedia arena now.