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• How to Add Gstreamer Plugin on Mac when installed from Tutorials

  31 juillet 2014, par Dave Collins

  I basically have two installs of gstreamer on my Mac OS X machine :
  The one that works perfectly was installed following this tutorial (http://docs.gstreamer.com/display/GstSDK/Installing+on+Mac+OS+X) and downloading and installing the Developer SDK and using XCode. All tutorials work well.

  I also have a local version installed with Homebrew but video playback does not work on that version (see SO : gstreamer gst-launch sample mac osx plays audio but not video)

  SO, I’m trying to install the FFMPEG plugin into the working xcode dev system so that I can use FFDEC_H263 in a project.

  I tried simply copying the related .SO files (e.g. libgstffmpg.so) from the homebrew (cellar) location to the

   /Library/Frameworks/GStreamer.Framework/Versions/0.10/lib/gstreamer-0.10/ 

  directory and changing permissions. However, that gives me a "Caught a segmentation fault while loading plugin file" error when building any code.

  I also noticed that in the Xcode directory mentioned above, all of the plugins have a related .a and .la files in the \static subdirectory... Those same files don’t exist in the homebrew version.

  So, what is the proper way to install a plugin when you’ve started with the developer SDK for Mac OSX ?

• ffmpeg can't find output directory under cygwin

  22 octobre 2015, par ljwobker

  I’m using the windows build of ffmpeg (details below), and when I try to transcode a video with the output file NOT in the local directory, it complains with the error message :

  /dtop/out.mp4: No such file or directory

  My cygwin mounts are as follows - I have not found any other application which doesn’t follow the mounts/links correctly...

  [lwobker:/dtop/vertigo]$ mount
  
  C:/Documents and Settings/lwobker/Desktop on /dtop type ntfs (binary)
  
  C:/cygwin/bin on /usr/bin type ntfs (binary,auto)
  
  C:/cygwin/lib on /usr/lib type ntfs (binary,auto)
  
  C:/cygwin on / type ntfs (binary,auto)
  
  C: on /cygdrive/c type ntfs (binary,posix=0,user,noumount,auto)

  Here’s what I’ve managed to figure out so far, leading me to believe that for some reason FFMPEG does not like following mount points or links in cygwin. But I’ll be damned if I can figure out why...

  if I do this, it WORKS :
  ffmpeg -i ./input.mp4 ./out.mp4

  if I do this, it WORKS (permission and mount/link check) :
  touch /dtop/out.mp4

  however, if I give a file location that is not in the current working directory or a subdirectory of the current working directory, it pukes :

  [lwobker:/dtop/vertigo]$ ffmpeg -i 00001.MTS /dtop/out.mp4
  
  ffmpeg version N-64919-ga613257 Copyright (c) 2000-2014 the FFmpeg developers
  
  <snip>
  
  Input #0, mpegts, from '00001.MTS':
  
    Duration: 00:01:41.63, start: 1.033367, bitrate: 10221 kb/s
  
    Program 1
  
      Stream #0:0[0x1011]: Video: h264 (High) (HDMV / 0x564D4448), yuv420p, 1440x1080 [SAR 4:3 DAR 16:9], 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
  
      Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, fltp, 256 kb/s
  
      Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090), 1920x1080
  
  /dtop/out.mp4: No such file or directory
  
  </snip>

  it also pukes if I give it /cygdrive/c/somefile.mp4 as an argument - it won’t find that either.

  Any ideas would be really appreciated. I had this working with a version of FFMPEG that I had compiled from source locally within cygwin, but when I moved machines I could not get it to recompile correctly so I’m hoping to figure this out so I can use the pre-compiled binaries for convenience...

  FFMPEG version details :

  [lwobker:/dtop/vertigo]$ ffmpeg
  
  ffmpeg version N-64919-ga613257 Copyright (c) 2000-2014 the FFmpeg developers
  
    built on Jul 23 2014 00:35:22 with gcc 4.8.3 (GCC)
  
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib
  
    libavutil      52. 92.101 / 52. 92.101
  
    libavcodec     55. 69.100 / 55. 69.100
  
    libavformat    55. 48.101 / 55. 48.101
  
    libavdevice    55. 13.102 / 55. 13.102
  
    libavfilter     4. 11.102 /  4. 11.102
  
    libswscale      2.  6.100 /  2.  6.100
  
    libswresample   0. 19.100 /  0. 19.100
  
    libpostproc    52.  3.100 / 52.  3.100
  
  Hyper fast Audio and Video encoder
  
  usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...
  
  
  
  Use -h to get full help or, even better, run 'man ffmpeg'

• running ffmpeg.exe command on golang windows

  27 février 2018, par Mehak Ayub Awan

  c:\goWorkSpace\src\github.com\tus\tusd\cmd\tusd\bin\ffmpeg.exe -y -i c:\goWorkSpace\src\github.com\tus\tusd\cmd\tusd\data\ac629d87f876835d3720059eb3e5d8a7.bin  -vcodec h264 "E:\MP4Files/27.02.2018/PM.mp4" 

  My command is working in cmd but not on exec.command using this :

  exec.Command("cmd", "-c",c:\goWorkSpace\src\github.com\tus\tusd\cmd\tusd\bin\ffmpeg.exe -y -i c:\goWorkSpace\src\github.com\tus\tusd\cmd\tusd\data\ac629d87f876835d3720059eb3e5d8a7.bin  -vcodec h264 "E:\MP4Files/27.02.2018/PM.mp4")