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• video compression using ffmpeg not working save as empty file after conversion

  25 mars 2019, par HEMANTH KUMAR

  I’m using CodeIgniter and also installed FFmpeg

  I have converted the big size video to small size and it worked in localhost.

  On the live server it’s converting but saving has an empty file.

  $v = '/var/www/html/login/public/restaurants/171/items/'.$rowv->item_id.'/'.$rowv->image;              
  
  $info = pathinfo($rowv->image);
  
  $v2 ='/var/www/html/login/public/restaurants/171/items/'.$rowv->item_id.'/'.'demo'. '.' . $ext;
  
  
  
  
  
  $a = exec("ffmpeg -y -loglevel error -i ".$v." -vcodec libx264 -crf 28 -preset faster -tune film ".$v2);

• RTSP authentification through ffmpeg/ffplay doesn't work because of special symbols in the password

  26 octobre 2018, par Eugene Mart

  I have run into a problem while trying to receive a video from an IP-camera using ffplay.

  My rtsp request looks like this : rtsp ://login:M3%LOL$KEKfp@x.x.x.x/path/to/media.amp

  And ffplay/ffmpeg returns an 401 Unauthorized error code. I am absolutely sure that the credentials are correct. The problem is caused by the password (M3%LOL$KEKfp), which consists of special symbols like %, and #. Is there any way to make it work without changing the password ?

  I tried using quote marks like this ffplay "rtsp ://login:M3%LOL$KEKfp@x.x.x.x/path/to/media.amp", and it didn’t have any ideas ?

  PS : I’m using windows. Tried both CMD and PowerShell

• avcodec/sanm : better frame size detection for old codecs

  11 mars, par Manuel Lauss

  avcodec/sanm : better frame size detection for old codecs
  The size of the video frame (FOBJ) of the old codecs (ANIMv0/1/2) can
  
  very reliably be determined :
  
   ANIMv0/1 (=Rebel Assault 1) uses a 384x242 internal buffer for
  
    everything.  The codec parameters only describe the size and offset
  
    of the specific FOBJ on that buffer.
  
   ANIMv2 titles usually use one of the fullscreen codecs (37/47/48)
  
    as first FOBJ, and their dimensions can generally be trusted.
  
   RA2 uses 424x260 as internal buffer, use that if encountered :
  
    08PLAY.SAN does not use codec37 so we need to guess using the
  
    codec coordinates.
  
   ignore sizes smaller than 2x2 or larger than 800x600.
  
   some game videos have an initial fobj with either 1x1 or -1x-1
  
    pixels in size, ignore them with a warning (Full Throttle
  
    and the Rebel Assault 2 xxRETRY.SAN videos).
  Once a known/valid dimension set has been discovered, use it and
  
  don't change it for subsequent FOBJs, rather clamp the large frame
  
  to the determined dimensions.
  Tested with RA1, RA2, Full Throttle, Dig, Outlaws, SotE and MotS
  
  videos.
  Signed-off-by : Manuel Lauss <manuel.lauss@gmail.com>
  

  • [DH] libavcodec/sanm.c