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• Error : ffmpeg -php with centos 6.4

  3 août 2013, par Kamoliddin Usmonov

  I have problem with ffmpeg on centos 6.4.
  FFmpeg is working, but FFmpeg -php not working. When I check ffmpeg -php error

  ffmpeg version N-55188-gbdccfc3 Copyright (c) 2000-2013 the FFmpeg developers
 built on Aug  3 2013 01:16:57 with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-3)
 configuration: --enable-gpl --enable-libfdk_aac --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree
 libavutil      52. 40.100 / 52. 40.100
 libavcodec     55. 19.100 / 55. 19.100
 libavformat    55. 12.102 / 55. 12.102
 libavdevice    55.  3.100 / 55.  3.100
 libavfilter     3. 82.100 /  3. 82.100
 libswscale      2.  4.100 /  2.  4.100
 libswresample   0. 17.103 /  0. 17.103
 libpostproc    52.  3.100 / 52.  3.100

  Unrecognized option 'php'.
 Error splitting the argument list: Option not found

  php -r 'phpinfo();' | grep ffmpeg

  PHP Warning : PHP Startup : Unable to load dynamic library '/usr/lib/php/modules/ffmpeg.so' - /usr/lib/php/modules/ffmpeg.so : cannot open shared object file : No such file or directory in Unknown on line 0
  PHP Warning : PHP Startup : Unable to load dynamic library '/usr/lib/php/modules/ffmpeg.so' - /usr/lib/php/modules/ffmpeg.so : cannot open shared object file : No such file or directory in Unknown on line 0
  PHP Warning : PHP Startup : Unable to load dynamic library '/usr/lib/php/modules/ffmpeg.so' - /usr/lib/php/modules/ffmpeg.so : cannot open shared object file : No such file or directory in Unknown on line 0
  /etc/php.d/ffmpeg.ini,

  Please help me ! Beforehand thanks =)

• Ffmpeg to add watermark and username to videos like tiktok

  8 avril 2024, par hazem khairy

  I am trying to use ffmpeg to add watermark and username (dynamic input) to videos same as tiktok.

  


  Currently I have the following command which adds an image to video but the transition is moving from left to right, my goal to make it appear in random positions as tiktok, and also to add username under the logo but not sure how to make it happen.

  


  ffmpeg -i testvideo.mp4 -i logo.png -filter_complex "[1][0]scale2ref=w=iw/10:h=ow/mdar[logo][main];[main][logo]overlay=x='mod(t\,10)/10*W':y='if(lt(mod(t+2\,8)\,4)\,H-h-H*20/100\,H*20/100)'" -vcodec libx264 -crf 28 -preset faster -tune film  output_video_test.mp4


  


  I tried to use rand() function but received the following error

  


  Unknown function in 'rand(...)'


  


  How can I make log appear in random places and add dynamic user input (username) same as tiktok using ffmpeg ?
And if not possible can I achieve the end goal with other technology ?

  


• What does A->A and VV->V etc. mean in the `ffmpeg -filters` command output ?

  8 janvier 2024, par Lance

  I am seeing this :

  


  Filters:
  T.. = Timeline support
  .S. = Slice threading
  ..C = Command support
  A = Audio input/output
  V = Video input/output
  N = Dynamic number and/or type of input/output
  | = Source or sink filter
... abench            A->A       Benchmark part of a filtergraph.
..C acompressor       A->A       Audio compressor.
... acontrast         A->A       Simple audio dynamic range compression/expansion filter.
... acopy             A->A       Copy the input audio unchanged to the output.
... acue              A->A       Delay filtering to match a cue.
... acrossfade        AA->A      Cross fade two input audio streams.
...
TSC colormap          VVV->V     Apply custom Color Maps to video stream.
TS. colormatrix       V->V       Convert color matrix.
TS. colorspace        V->V       Convert between colorspaces.
TSC colortemperature  V->V       Adjust color temperature of video.
TSC convolution       V->V       Apply convolution filter.
TS. convolve          VV->V      Convolve first video stream with second video stream.
...


  


  A few questions :

  


  


  1. What does this part of the filters intro mean ?

     


      A = Audio input/output
 V = Video input/output
 N = Dynamic number and/or type of input/output
 | = Source or sink filter


     


  


  2. What does the A->A and VVV->V (and any combination of 1+ A or 1+ V) mean ?

     


  


  3. Where do the N and | show up, I don't see it anywhere...

     


  


  


  I am hoping to convert this CLI data output to JSON, but don't know what those mean.