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• cinepakenc : add option handling for flexibility

  27 juin 2017, par addr-see-the-website@aetey.se

  cinepakenc : add option handling for flexibility
  Now it is possible to adjust compression speed vs R/D when needed
  
  and also skip vintage player compatibility at will.
  Signed-off-by : Diego Biurrun <diego@biurrun.de>
  

  • [DBH] libavcodec/cinepakenc.c

• cinepakenc : fixes and improvements

  27 juin 2017, par addr-see-the-website@aetey.se

  cinepakenc : fixes and improvements
  version 2013-02-08 Rl
  
   fixes/optimization in multistrip encoding and codebook size choice,
  
    quality/bitrate is now better than that of the binary proprietary encoder
  version 2013-02-12 Rl
  
   separated codebook training sets, avoided the transfer of wasted bytes,
  
    which yields both better quality and smaller files
  
   now using the correct colorspace (TODO : move conversion to libswscale)
  version 2013-02-14 Rl "Valentine’s Day" version :
  
   made strip division more robust
  
   minimized bruteforcing the number of strips,
  
    (costs some R/D but speeds up compession a lot), the heuristic
  
    assumption is that score as a function of the number of strips has
  
    one wide minimum which moves slowly, of course not fully true
  
   simplified codebook generation,
  
    the old code was meant for other optimizations than we actually do
  
   optimized the codebook generation / error estimation for MODE_MC
  version 2013-04-28 Rl
  
   bugfixed codebook optimization logic
  version 2014-01-20 Rl
  
   made the encoder compatible with vintage decoders
  
    and added some yet unused code for possible future
  
    incremental codebook updates
  
   fixed a small memory leak
  version 2014-01-21 Rl
  
   believe it or not, now we get even smaller files, with better quality
  
    (which means I missed an optimization earlier :)
  Signed-off-by : Diego Biurrun <diego@biurrun.de>
  

  • [DBH] libavcodec/cinepakenc.c

• Add watermark to video using ffmpeg in php not working

  13 juillet 2017, par Remya

  I need to watermark a mp4 video , Currently i am using this code, but it is not working , please solve this

  <?php $msg = exec('/usr/local/bin/ffmpeg -i uploads/videos/profile/movie.mp4 -vf "movie=logo.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:10 [out]" uploads/videos/profile/output.mp4 2>&1', $output); var_dump($output);?>

  The error shows

  array (size=27)  0 => string 'FFmpeg version SVN-r26402, Copyright (c) 2000-2011 the FFmpeg developers' (length=72)  1 => string '  built on Jan 14 2016 22:33:21 with gcc 4.4.7 20120313 (Red Hat 4.4.7-16)' (length=74)  2 => string '  configuration: --enable-libmp3lame --enable-libvorbis --disable-mmx --enable-shared --enable-libx264 --enable-libtheora --enable-libfaac --enable-avfilter --enable-gpl --enable-nonfree --enable-x11grab --enable-libxvid' (length=220)  3 => string '  libavutil     50.36. 0 / 50.36. 0' (length=35)  4 => string ' libavcore      0.16. 1 /  0.16. 1' (length=35)  5 => string '  libavcodec    52.108. 0 / 52.108. 0' (length=37)  6 => string '  libavformat   52.93. 0 / 52.93. 0' (length=35)  7 => string '  libavdevice   52. 2. 3 / 52. 2. 3' (length=35)  8 => string '  libavfilter    1.74. 0 /  1.74. 0' (length=35)  9 => string '  libswscale     0.12. 0 /  0.12. 0' (length=35)  10 => string 'Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'uploads/videos/profile/movie.mp4':' (length=75)  11 => string '  Metadata:' (length=11)  12 => string '   major_brand     : isom' (length=26)  13 => string '    minor_version   : 512' (length=25)  14 => string '    compatible_brands: isomiso2avc1mp41' (length=39)  15 => string '    creation_time   : 1970-01-01 00:00:00' (length=41)  16 => tring '    encoder         : Lavf53.24.2' (length=33)  17 => string '  Duration: 00:00:05.31, start: 0.000000, bitrate: 1589 kb/s' (length=60)  18 => string '    Stream #0.0(und): Video: h264, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 1205 kb/s, 25 fps, 25 tbr, 12800 tbn, 50 tbc' (length=117)  19 => string '    Metadata:' (length=13)  20 => string '      creation_time   : 1970-01-01 00:00:00' (length=43)  21 => string '    Stream #0.1(und): Audio: aac, 48000 Hz, 5.1, s16, 384 kb/s' (length=62)  22 => string '    Metadata:' (length=13)  23 => string '      creation_time   : 1970-01-01 00:00:00' (length=43)  24 => string '[buffer @ 0x1e95f70] w:1280 h:720 pixfmt:yuv420p' (length=48)  25 => string 'No such filter: 'movie'' (length=23)  26 => string 'Error opening filters!' (length=22)