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• Adding the Transform video filter to ffmpeg

  1er août 2016, par aaeim

  first off I’m new to ffmpeg, and stackoverflow. so sorry If I’m doing something wrong.

  Earlier I commented on a post related to this but it got deleted because it was not an answer or something. So I’m asking my own question here.

  I followed this instructions https://trac.ffmpeg.org/wiki/CompilationGuide/Ubuntu

  up untill Unzipping the ffmpeg file. Then I followed the facebook instructions

  1. Checkout the source for ffmpeg
  2. Copy vf_transform.c to the libavfilter subdirectory in ffmpeg source
  3. Edit libavfilter/allfilters.c and register the filter by adding the line : REGISTER_FILTER(TRANSFORM, transform, vf) ; in the video filter registration section
  4. Edit libavfilter/Makefile and add the filter to adding the line : OBJS-$(CONFIG_TRANSFORM_FILTER) += vf_transform.o in the filter section
  5. Configure and build ffmpeg as usual

  and finally I ran the remaining instructions from the compilation guide.

  I did the whole process a couple times but The result is always the same when I try to test.

  ffmpeg version N-80901-gfebc862 Copyright (c) 2000-2016 the FFmpeg developers
  
    built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
  
    configuration: --extra-libs=-ldl --prefix=/opt/ffmpeg --mandir=/usr/share/man --enable-avresample --disable-debug --enable-nonfree --enable-gpl --enable-version3 --enable-libopencore-amrnb --enable-libopencore-amrwb --disable-decoder=amrnb --disable-decoder=amrwb --enable-libpulse --enable-libfreetype --enable-gnutls --enable-libx264 --enable-libx265 --enable-libfdk-aac --enable-libvorbis --enable-libmp3lame --enable-libopus --enable-libvpx --enable-libspeex --enable-libass --enable-avisynth --enable-libsoxr --enable-libxvid --enable-libvidstab
  
    libavutil      55. 28.100 / 55. 28.100
  
    libavcodec     57. 48.101 / 57. 48.101
  
    libavformat    57. 41.100 / 57. 41.100
  
    libavdevice    57.  0.102 / 57.  0.102
  
    libavfilter     6. 47.100 /  6. 47.100
  
    libavresample   3.  0.  0 /  3.  0.  0
  
    libswscale      4.  1.100 /  4.  1.100
  
    libswresample   2.  1.100 /  2.  1.100
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Unknown filter 'transform'.

  I’m on elementary OS.
  Thx and sorry if the post is all wrong.

• avformat/hlsenc : save the EXT-X-DISCONTINUITY from old list

  7 décembre 2016, par Steven Liu

  avformat/hlsenc : save the EXT-X-DISCONTINUITY from old list
  when use fix ticket 2nd problem.
  command line test step :
  
  rm -rf output* ;./ffmpeg  -i /Movies/objectC/facebook.mp4 -an -c:v copy
  
   f hls -hls_time 4 -hls_list_size 5 -hls_flags +delete_segments
  
   hls_flags +append_list -hls_flags +omit_endlist -hls_flags
  
  +discont_start -t 50 output.m3u8
  
  ./ffmpeg -i /Movies/objectC/facebook.mp4 -an -c:v libx264 -g 4 -f hls
  
   hls_time 4 -hls_list_size 5 -hls_flags +delete_segments -hls_flags
  
  +append_list -hls_flags +omit_endlist -hls_flags +discont_start -t 5
  
  output.m3u8
  
  ./ffmpeg -i /Movies/objectC/facebook.mp4 -an -c:v libx264 -g 4 -f hls
  
   hls_time 4 -hls_list_size 5 -hls_flags +delete_segments -hls_flags
  
  +append_list -hls_flags +omit_endlist -hls_flags +discont_start -t 5
  
  output.m3u8
  result :
  
   #EXTM3U
  
   #EXT-X-VERSION:3
  
   #EXT-X-TARGETDURATION:5
  
   #EXT-X-MEDIA-SEQUENCE:6
  
   #EXTINF:4.120000,
  
   output6.ts
  
   #EXT-X-DISCONTINUITY
  
   #EXTINF:4.000000,
  
   output7.ts
  
   #EXTINF:0.960000,
  
   output8.ts
  
   #EXT-X-DISCONTINUITY
  
   #EXTINF:4.000000,
  
   output9.ts
  
   #EXTINF:0.960000,
  
   output10.ts
  Signed-off-by : Steven Liu <lq@chinaffmpeg.org>
  

  • [DH] libavformat/hlsenc.c

• Revision 53928 : Ajout de la possibilité de ne pas afficher les photos de profil sous le ...

  1er novembre 2011, par yffic@… — Log

  Ajout de la possibilité de ne pas afficher les photos de profil sous le bouton facebook like