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• System.load() is not loading the .so files though they are there

  22 février 2018, par Anuran Barman

  I am trying to load FFMPEG .so files from the /files folder of the application but System.load() is not loading them. My code look like this below :

  static {
  
          try {
  
              String[] libs={
  
                      App.getInstance().getFilesDir().getAbsolutePath()+"/sharedLibs/libavfilter.so",
  
                      App.getInstance().getFilesDir().getAbsolutePath()+"/sharedLibs/libswscale.so",
  
                      App.getInstance().getFilesDir().getAbsolutePath()+"/sharedLibs/libavformat.so",
  
                      App.getInstance().getFilesDir().getAbsolutePath()+"/sharedLibs/libffmpeg-jni.so",
  
                      App.getInstance().getFilesDir().getAbsolutePath()+"/sharedLibs/libswresample.so",
  
                      App.getInstance().getFilesDir().getAbsolutePath()+"/sharedLibs/libavutil.so",
  
                      App.getInstance().getFilesDir().getAbsolutePath()+"/sharedLibs/libavcodec.so"
  
              };
  
              for(int i=0;icode>

  If I remove them android studio logcat says library file not found specifying the exact location like /data/0/emulated/myPKGName/files/sharedLibs/.so so it is loading the so files but if I provide them it still shows UnsatisfiedLinkError error, like below :

  java.lang.UnsatisfiedLinkError: dlopen failed: library "libswscale.so" not found

  Why is it in turn searching for libswrescale.so file though that is already loaded from files folder ?

• "error C2400 : inline assembler syntax error in ‘opcode’" pxor compiling ffmpeg with mmx flag enabled

  4 octobre 2013, par Kristofer

  I'm trying to compile (visual studio 2005) ffmpeg with mmx flag enabled (HAVE_MMX) but get the following error :
  "error C2400 : inline assembler syntax error in ‘opcode’"
  And it's complaining about xpor_r2r

  Ideas ?

  [Update]
  Jester pointed out that it's probably a problem with the macro :

  #define         mmx_r2r(op,regs,regd) \
       __asm__ volatile (#op " %" #regs ", %" #regd)

  Directly using :
  __asm__ pxor mm7 mm7 works
  Adding volatile (as in the macro mentioned) gives the same error, syntax error as before in 'opcode' found 'data_type'.

  Just removing volatile from the macro does not work, instead gives error in 'opcode' found '('

  Removing the paranthesis instead gives error in 'opcode' found 'bad_token'

• flutter_ffmpeg - Can we trim a part of the video in flutter while recording

  16 février 2021, par Mayur Agarwal

  I am making a flutter app, in which a user can record a video and pause in between, and when the user pauses the video a clip is formed.
So if the 4 clips are there, then 4th clip can be removed from the video (according to the time of the last clip).
By a clip I just mean the time interval between two continuous pauses. The video is being recorded continuously.
There's a way to trim a video after it's being record, for example,

  


   ffmpeg -ss 00:01:00 -i input.mp4 -to 00:02:00 -c copy output.mp4


  


  But I think it's possible only when the video is recorded.

  


  So, Is there any way to to trim a video (using flutter_ffmpeg) or the last clip, while the recording is paused ?