Thursday, August 21, 2014

[ffmpeg] ffmpeg-2.2 patch for relocation R_X86_64_PC32 against symbol error


ffmpeg-2.2 patch for relocation R_X86_64_PC32 against symbol error when compile in x64-bit

Patch Link:

Download: V1.0

Scope of Issue:

When ffmpeg is built for static library and this compiled static library is linked with another dynamic library then the final linking failed with error --

ffmpeg/libavcodec/libavcodec.a(xx_yyyy.o): relocation R_X86_64_PC32 against symbol `ff_xx_yy_zz_qq' can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: final link failed: Bad value
collect2: ld returned 1 exit status


x64-bit Linux, Unix, may be windows 64-bit

How to fix:

Use the ffmpeg-2.2.patch in your FFmpeg-n2.2 release source.

How to apply patch:

  1. Copy the downloaded patch to your FFmpeg-n2.2 folder.
  2. Test the patch compatibility with your ffmpeg source by --
patch --dry-run -p1 -i  ffmpeg-2.2.patch
giving this command inside your ffmpeg source folder.
  1. If the test returns no fail patch file then you are good to patch.
  2. Now patch by following command --
patch -p1 -i ffmpeg-2.2.patch
  1. Now enjoy linking with your any other project library !!
Note: I am not in blame for any other issue and any other copyright law , if ffmpeg have any for this. This is only a remedy for the group who suffers from this compilation errors.

Wednesday, August 13, 2014

[eAskGitHub]Simple C++ console for all github repo release API


Simple console for all github repo release API.


It is a c++ application with a binary. It is created to make the life simple for github repository API user. It uses curl.


1. It can receive any lenght of response from github.
2. It has it's own simple JSON parser method.
3. It is powerfull tool to know your github release download count.
4. Makefile application.


1. Need libcurl.
2. Need Centos/Linux.
3. Not tested with windows(Hopefully it will work after windows curl library installation).


1. Implement every API of [GitHub API](


In console just give command -


Then just follow the hints available on console or answer the querry.

Test Result:


Welcome to github metadata fetcher eAskGitHub v1.0 !!
It's a very simple command line app who will try to
fill your all want for github metadata(THE API).

Please enter github username: robelsharma
Please enter your one repository name: videoconference
Your querry Succeeded :)
Project Title:=>  Chat and Video call simultaneously
Creators' Login Name:=>  robelsharma
User Privilege:=>  User
Are you an Admin for this site?:=> No
Create Date:=>  2014-08-09T08:04:29Z
Publish Date:=>  2014-08-09T08:15:36Z
Project Binary:=>
Uploader Login Name:=>  robelsharma
User Privilege:=>  User
Are you an Admin for this site?:=> No
Binary Package Type:=>  application/zip
|Downloaded: 6 times|
Create Date:=>  2014-08-11T05:50:48Z
Binary Package updated at:=>  2014-08-11T05:50:54Z
Download Link:=>

Want to continue ?(y/n):n

Friday, August 8, 2014

Jabsimul with SASL Integration is a benchmarking tool for Jabber/XMPP Servers which have SASL authentication


Jabsimul with SASL Integration is a benchmarking tool for Jabber/XMPP Servers which have SASL authentication.
It also has the support for *starttls*.

Special Note:

The SASL and starttls implementation is mine. Other than this project is not mine.


I have implemented the protocol named XEP-0034: SASL Integration.

Extra Feature:

Other then jabsimul benchmark feature it has the extra feature of XMPP SASL authentication. I have enabled the SASL plain mechanism of authentication for xmpp login.

With that now you can have the benchmark of jabsimul with SASL authentication.

As list:

1. Implemented “XMPP TLS” from
2. Implemented “SASL AUTH” from

Source code is available in here .


First start a TCP connection to the XMPP server. Then convert this TCP connection to TLS with *starttls* schema request.
Then select the *SASL* auth mechanism and start the the XMPP communication with TLS. The TLS connection holds when the SASL mechanism complete a successful handshake.

1. Protocol Messaging Details with sequence -


<stream:stream to="" xmlns="jabber:client" xmlns:stream="">


<stream:stream xmlns:stream='' xmlns='jabber:client' id='ojTsAaoSvVKdKfmW' from=''  version='1.0'>
  <starttls xmlns="urn:ietf:params:xml:ns:xmpp-tls"><required/></starttls>
  <mechanisms xmlns="urn:ietf:params:xml:ns:xmpp-sasl">

<starttls xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>

<proceed xmlns='urn:ietf:params:xml:ns:xmpp-tls'/>

Implementation details are available [here](

How To's:

cd jabsimul/jab_simul/
vi jab_simul.xml

Change *<server>jabber.localhost</server>* to your XMPP server address. Fill the xml file with you necessary configuration.

Compile it:


Now you can execute it: