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• Can't find preset files

  1er juin 2012, par Bilthon

  this is a ffmpeg issue. I've got this error saying it could not find the hq preset file, then I read in the documentation that it looks for the preset files at 'PREFIX/share/ffmpeg' and also at '$HOME/.ffmpeg'. The thing is I'm calling ffmpeg from whithin a php file that calls a python script that finally executes the command something like 'commands.getstatusoutput(command)' so I was not sure who the user was.

  The solution ? I just used -fpre and my call now looks like this :

  /usr/local/bin/ffmpeg -i ../files/tmpvideos/myStream.flv -y -acodec libfaac -ab 96k -b 800k -maxrate 800k -minrate 600k -bufsize 800k -s 720x640 -vcodec libx264 -g 300 -r 20 -fpre /home/admin/.ffmpeg/libx264-hq.ffpreset -threads 0 ../files/tmpvideos/4647-60.mp4

  I created that directory under /home/admin and am 100% sure that there the file is there now, but still ffmpeg says :

  File for preset '/home/admin/.ffmpeg/libx264-hq.ffpreset' not found

  So I'm not sure why is it not working since I'm specifying the complete path now. Any ideas ?

  One reason that I'm thinking of, is that it maybe was not compiled correctly, like with all the flags and stuff. What I mean is that while some outputs out there looked like this :

  FFmpeg version SVN-r22976, Copyright (c) 2000-2010 the FFmpeg developers
  
    built on Apr 30 2010 12:03:12 with gcc 4.2.1-sjlj (mingw32-2)
  
    configuration: --enable-shared --enable-static --enable-memalign-hack
  
  --enable
  
  -libmp3lame --enable-libx264 --enable-gpl
  
    libavutil     50.14. 0 / 50.14. 0
  
    libavcodec    52.66. 0 / 52.66. 0
  
    libavformat   52.61. 0 / 52.61. 0
  
    libavdevice   52. 2. 0 / 52. 2. 0
  
    libswscale     0.10. 0 /  0.10. 0

  mine looks more like this :

  Output: FFmpeg version 0.6.1, Copyright (c) 2000-2010 the FFmpeg developers
  
    built on Nov 12 2010 16:32:38 with gcc 4.1.2 20080704 (Red Hat 4.1.2-48)
  
    configuration:
  
    libavutil     50.15. 1 / 50.15. 1
  
    libavcodec    52.72. 2 / 52.72. 2
  
    libavformat   52.64. 2 / 52.64. 2
  
    libavdevice   52. 2. 0 / 52. 2. 0
  
    libswscale     0.11. 0 /  0.11. 0

  No configuration stuff. What do u think ? could be that this ffmpeg was not compiled correctly so it will never find the presets ? I didn't compile it, so can't be sure.

  Thanks and sorry for the verbosity of the question.

  Nelson

• Révision 20648 : complément d’info dans les listes d’auteurs (webmestre et admin restreint) cf ht...

  16 juin 2013, par b b

• Does anyone find this useful ? - Compiling FFMPEG on Windows with Cywin and NDK r5 [closed]

  5 avril 2017, par protectedmember

  Does anyone find this information useful in anyway ?

  I’ve been trying to compile this thing for a while now and I know of the numerous posts floating around the internet offering help. I have read and tried most of the suggestions and wanted to colate my success into this single post for others to benefit from.

  Since I don’t have a blog, I thought it wouldn’t hurt to post on here instead.

  I have managed to compile FFMPEG 0.10.3 (Freedom) on Windows 7 (32 bit) using NDK r5 and Cygwin. The steps :

  1 - Download/install Cygwin in the root of your C drive. I’m not going to give instructions on this, it’s simple enough and there are plenty of tutorials on this.

  2 - Download NDK r5 from here and extract to the root of your C drive.

  3 - Download FFMPEG 0.10.3 from here and extract to the root of your C drive.

  4 - Open the file ’configure’ in the root of the FFMPEG directory in a text editor.

  5 - Comment out lines 2073, 2074 and 2075.

  6 - Below 2075, add the following line :

  TMPDIR=c :/cygwin/tmp

  7 - Download this script (thankyou roman10) and place it inside your FFMPEG root directory. Rename the file to

  build_android.sh

  8 - Open the script in a text editor and edit line 17 to read

  c :/android-ndk-r5

  9 - Click start > run and type "bash" (without the speech marks) and press enter.

  10 - Type the following and press enter :

  cd /cygdrive/c/ffmpeg-0.10.3

  11 - Type the following and press enter :

  dos2unix build_andoird.sh

  12 - Type the following and press enter :

  ./build_android.sh

  13 - Sit back and wait... libffmpeg.so will soon appear in your "c :\ffmpeg-0.10.3\android\" directory (where is defined in the bottom of the script from roman10’s blog). The default architecture is armv7-a.

  The script from roman10’s blog will actually compile quite a large shared object (.so) file. The compiler flags can be adjusted to suit your needs in the script from roman10’s blog.