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• Live Video Streaming from android device to server [on hold]

  23 octobre 2013, par Android_sp

  hey friends i want your help

  i search a lot and study lots of code available for streaming for android but yet i can't get clear idea for me. i want simple one thing to pass stream from android device to wowza server in H.264 encoding for video and AAC for Audio.

  here some links which i already serf :

  Which not anwser :Link 1

  i also refer this most popular question from our site : Link 2

  but this useful but at some level ..

  1) Native side by using FFmpeg library i can able to send video stream but can't find a way how to encode video in H.264 format : Downloaded from here

  2) SPYdroid demo i found but from this i can send video stream to particular server :
  Downloaded from Here

  so guys if you know some thing please help me so i can find a way.

• c FFmpeg undefined refference error [duplicate]

  14 août 2017, par galagala

  This question already has an answer here :

  • What is an undefined reference/unresolved external symbol error and how do I fix it ?
    
    28 answers
    

  I want to write my own video player, so I am trying to use FFmpeg with C.
  I am using Ubuntu 16.04.3 LTS and compile FFmpeg following this tutorial https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu

  after that I did add libavcodec.a to linker setting list and the source code path to search directory (using codeblocks)

  but my code still get error : undefined refference to "avcodec_register_all()"

  #include 
  
  #include "libavcodec/avcodec.h"
  
  int main()
  
  {
  
      avcodec_register_all();
  
      return 0;
  
  }

  after that, I search the libavcodec folder
  I did find avcodec.h and void avcodec_register_all(void) defined in it
  but I couldn’t find avcodec.c in the folder

  Is that normal ? and is that the reason why I got undefined reference error ?
  how to fix it ?

• undefined reference to pl_log_create_341 whenever I try to compile ffmpeg and mpv under Arch Linux [closed]

  3 février 2024, par Mike Nguyen

  Ever since yesterday, I have been struggling to compile ffmpeg, and to a further extent, mpv, on Arch Linux due to the following error that is probably unique to my install :

  


  /usr/bin/ld: libavfilter/libavfilter.so: undefined reference to pl_log_create_341 collect2: error: ld returned 1 exit status make: *** [Makefile:133: ffplay_g] Error 1 make: *** Waiting for unfinished jobs.... /usr/bin/ld: libavfilter/libavfilter.so: undefined reference to pl_log_create_341'
collect2 : error : ld returned 1 exit status
make : *** [Makefile:133 : ffprobe_g] Error 1
/usr/bin/ld : libavfilter/libavfilter.so : undefined reference to pl_log_create_341' collect2: error: ld returned 1 exit status make: *** [Makefile:133: ffmpeg_g] Error 1

  


  I was trying to install mpd on my system, but pacman forced me to remove a ton of essential packages relating to multimedia, Qt, etc. I have since been able to reinstall most of these packages.

  


  However, my ffmpeg has been corrupted (as well as mpv failing to start) due to another error that apparently no one else has been getting (I have searched Google for this) :

  


  symbol lookup error: /usr/lib/libavfilter.so.9: undefined symbol: pl_tone_map_auto

  


  I have both libavfilter.so.9.12.100 and libavfilter.so.9.13.100 in my /usr/lib directory, and I am forced to run sudo ln -s /usr/lib/libavfilter.so.9.12.100 /usr/lib/libavfilter.so.9 every time I run pacman.

  


  I have spent countless hours browsing the web about what solutions are available, but as I said, I seem to be the only one getting these errors.

  


  Whether it's installing ffmpeg-git via the AUR, or removing and reinstalling mpv, nothing seems to fix the problem. And no one else is having this problem.

  


  I might be forced to do a clean install of Arch Linux, but I don't have the time for it.