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• Unable to upload video from iPhone with paperclip-ffmpeg in Ruby on Rails

  13 mai 2015, par sank

  When I upload a video from an iPhone, I’m getting the following error :

  Command :: PATH=/usr/bin/:$PATH; file -b --mime '/tmp/6da355e988ec841811d8803dfd5cf44c20150513-8103-b4lkam.MOV'
  
  [paperclip] Content Type Spoof: Filename IMG_2637.MOV (["video/quicktime"]), content type discovered from file command: inode/x-empty. See documentation to allow this combination.
  
  (0.6ms)  ROLLBACK
  
  Completed 400 Bad Request in 58ms (Views: 0.9ms | ActiveRecord: 5.0ms)

  (This works perfectly when I upload the same video from desktop.)

  I used gems "paperclip", "~> 4.1" and "paperclip-ffmpeg".

  In my video model :

  validates_attachment_content_type :student_video, content_type: /\Avideo\/.*\Z/

  also tried out

  validates_attachment_content_type :student_video, :content_type => ['video/x-   
  
  #                                        msvideo', 'video/avi', 'video/quicktime', 'video/3gpp', 'video/x-ms-
  
  #                                        wmv', 'video/mp4', 'flv-application/octet-stream', 'video/x-
  
  #                                        flv', 'video/mpeg', 'video/mpeg4', 'video/x-la-asf', 'video/x-ms-asf']

  But I’m getting the same error.

• ffmpeg armv7s compile segmentation fault

  13 mai 2015, par Sergey92zp

  I use https://github.com/kewlbear/FFmpeg-iOS-build-script to compile ffmpeg,
  but when i try to compile, for armv7s architecture i have next error

  all other archs compile fine

  clang : error : unable to execute command : Segmentation fault : 11 clang :
  error : clang frontend command failed due to signal (use -v to see
  invocation) Apple LLVM version 6.1.0 (clang-602.0.49) (based on LLVM
  3.6.0svn) Target : arm-apple-darwin14.3.0 Thread model : posix clang : note : diagnostic msg : PLEASE submit a bug report to
  http://developer.apple.com/bugreporter/ and include the crash
  backtrace, preprocessed source, and associated run script. clang :
  note : diagnostic msg :

  ---

  PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT : Preprocessed
  source(s) and associated run script(s) are located at : clang : note :
  diagnostic msg :
  /var/folders/zk/wj2cn08s26x64nlzk3_kjnv80000gn/T/vp8-c6ec27.c clang :
  note : diagnostic msg :
  /var/folders/zk/wj2cn08s26x64nlzk3_kjnv80000gn/T/vp8-c6ec27.sh clang :
  note : diagnostic msg :

  ******************** make : * [libavcodec/vp8.o] Error 254 make : * Waiting for unfinished jobs.... CC libavcodec/wmv2enc.o

  Couple months ago all compiled without any errors.
  Tried on couple versions of ffmpeg

  Here is Clang -v

  Apple LLVM version 6.1.0 (clang-602.0.49) (based on LLVM 3.6.0svn)
  Target : x86_64-apple-darwin14.3.0 Thread model : posix

  and xcode version is Version 6.3.1 (6D1002)

• Segmentation Fault when running ffmpeg+sdl program

  23 juin 2015, par user2270995

  I started with Dranger’s tutorials on building a video player using FFMPEG and SDL. The code tutorial4 compiles fine but when i run it i get a segmentation fault error. here’s the code for tutorial4.

  I am using gcc

  Apple LLVM version 6.1.0 (clang-602.0.49) (based on LLVM 3.6.0svn)
  
  Target: x86_64-apple-darwin14.3.0
  
  Thread model: posix 

  on Mac 10.10.3.

  Here’s GDB Backtrace :

   Program received signal SIGSEGV, Segmentation fault.
  
  [Switching to Thread 0x1813 of process 84136]
  
  0x00007fff955d4432 in stack_not_16_byte_aligned_error ()
  
  from /usr/lib/system/libdyld.dylib
  
  (gdb) backtrace 
  
  #0  0x00007fff955d4432 in stack_not_16_byte_aligned_error ()
  
  from /usr/lib/system/libdyld.dylib
  
  #1  0x000000010a2f1ee0 in ?? ()
  
  #2  0x0000000101341008 in ?? () from /usr/local/lib/libSDL-1.2.0.dylib
  
  #3  0x00000000000005d0 in ?? ()
  
  #4  0x00000001013362e9 in RunThread () from /usr/local/lib/libSDL-1.2.0.dylib
  
  #5  0x00000001013362e2 in RunThread () from /usr/local/lib/libSDL-1.2.0.dylib
  
  #6  0x00007fff8d1d4268 in ?? () from /usr/lib/system/libsystem_pthread.dylib
  
  #7  0x0000000000006f23 in ?? ()
  
  #8  0x000000010a2f2000 in ?? ()
  
  #9  0x000000010a2f1f50 in ?? ()  
  
  #10 0x00007fff8d1d41e5 in ?? () from /usr/lib/system/libsystem_pthread.dylib
  
  #11 0x0000000000000000 in ?? ()
  
  (gdb) 

  Backtrace for another SIGSEGV :

  Program received signal SIGSEGV, Segmentation fault.
  
  [Switching to Thread 0x15eb of process 11453]
  
  0x00000001012c9475 in av_log_format_line ()
  
  from /usr/local/lib/libavutil.54.dylib
  
  (gdb) bt
  
  #0  0x00000001012c9475 in av_log_format_line ()
  
  from /usr/local/lib/libavutil.54.dylib
  
  #1  0x00000001012f7338 in av_pix_fmt_descriptors ()
  
  from /usr/local/lib/libavutil.54.dylib
  
  #2  0x00000018012f7358 in ?? ()
  
  #3  0x000000010a2f3010 in ?? ()
  
  #4  0x000000010a2f2c10 in ?? ()
  
  #5  0x000000010011d65a in ?? () from  /usr/local/lib/libavformat.56.dylib
  
  #6  0x000000010a2f3900 in ?? ()
  
  #7  0x0000000000000018 in ?? ()
  
  #8  0x0000000000000018 in ?? ()
  
  #9  0x000000010011d65a in ?? () from /usr/local/lib/libavformat.56.dylib
  
  #10 0x000000010a2f3900 in ?? ()
  
  #11 0x910016d093cdc267 in ?? ()
  
  #12 0x000000010a2f3eb0 in ?? ()
  
  #13 0x00000001012c96e8 in av_log_default_callback ()
  
  from /usr/local/lib/libavutil.54.dylib
  
  #14 0x0000000000000000 in ?? ()
  
  (gdb) 

  The call to SDL_WaitEvent in main method is where these errors occur in my debugging.

  for(;;) {
  
  SDL_WaitEvent(&event);
  
  switch(event.type) {
  
  case FF_QUIT_EVENT:
  
  case SDL_QUIT:
  
    is->quit = 1;
  
    SDL_Quit();
  
    return 0;
  
    break;
  
  case FF_REFRESH_EVENT:
  
    video_refresh_timer(event.user.data1);
  
    break;
  
  default:
  
    break;
  
   }
  
  }

  is this related to pthread library or sdl And how do i resolve it ?