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• Expose the state of the jqXHR object as state() method on the data argument.

  18 mars 2013, par blueimp

  m js/jquery.fileupload.js Expose the state of the jqXHR object as state() method on the data argument.

• How to apply 2 filters drawtext and drawbox using FFMPEG

  9 juillet 2017, par user6972

  I’m having problems combining filters. I’m trying to take video from the camera, apply a timer on it and also overlay a box in the center. I can put a time code (local time and pts) using the -vf drawtext command no problems :

  ffmpeg -f video4linux2 -input_format mjpeg -s 1280x720 -i /dev/video0 \
  
  -vf "drawtext=fontfile=/usr/share/fonts/truetype/freefont/FreeSerif.ttf: \
  
  text='%{localtime} %{pts\:hms}':  fontcolor=white: fontsize=24: box=1: \
  
  boxcolor=black@0.8: boxborderw=5: x=0: y=0" -vcodec libx264 \
  
  -preset ultrafast -f mp4 -pix_fmt yuv420p -y output.mp4

  Then I have one that draws a small box using drawbox :

  ffmpeg -f video4linux2 -input_format mjpeg -s 1280x720 -i /dev/video0 \
  
  -filter_complex " drawbox=x=iw/2:y=0:w=10:h=ih:color=red@0.1": \
  
  -vcodec libx264 -preset ultrafast -f mp4 -pix_fmt yuv420p -y output.mp4

  I assumed I could combine these with the filter_complex switch and separate them using the semicolon like this

  ffmpeg -f video4linux2 -input_format mjpeg -s 1280x720 -i /dev/video0 -filter_complex "drawtext=fontfile=/usr/share/fonts/truetype/freefont/FreeSerif.ttf: text='%{localtime} %{pts\:hms}':  fontcolor=white: fontsize=24: box=1: boxcolor=black@0.8;drawbox=x=iw/2:y=0:w=10:h=ih:color=red@0.1": -vcodec libx264 -preset ultrafast -f mp4 -pix_fmt yuv420p -y output.mp4

  But it fails to find the input stream on the second filter :

  Input #0, video4linux2,v4l2, from ’/dev/video0’ :

  Duration : N/A, start : 10651.720690, bitrate : N/A

  Stream #0:0 : Video : mjpeg, yuvj422p(pc, bt470bg/unknown/unknown), 1280x720, -5 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc

  Cannot find a matching stream for unlabeled input pad 0 on filter Parsed_drawbox_1

  I tried to direct it to [0] like this :

  ffmpeg -f video4linux2 -input_format mjpeg -s 1280x720 -i /dev/video0 -filter_complex " \
  
  drawtext=fontfile=/usr/share/fonts/truetype/freefont/FreeSerif.ttf: \
  
  text='%{localtime} %{pts\:hms}':  fontcolor=white: fontsize=24: box=1: \
  
  boxcolor=black@0.8;[0] drawbox=x=iw/2:y=0:w=10:h=ih:color=red@0.1": \
  
  -vcodec libx264 -preset ultrafast -f mp4 -pix_fmt yuv420p -y output.mp4

  But it fails to put the box on the output.

  So I tried to split streams like this

  ffmpeg -f video4linux2 -input_format mjpeg -s 1280x720 -i /dev/video0 -filter_complex " \
  
  split [main][tmp];\
  
  [main] drawtext=fontfile=/usr/share/fonts/truetype/freefont/FreeSerif.ttf: \
  
  text='%{localtime} %{pts\:hms}':  fontcolor=white: fontsize=24: box=1: boxcolor=black@0.8 [tmp];\
  
  [main] drawbox=x=iw/2:y=0:w=10:h=ih:color=red@0.1 [tmp2]; [tmp][tmp2] overlay": \
  
  -vcodec libx264 -preset ultrafast -f mp4 -pix_fmt yuv420p -y output.mp4

  But my build doesn’t have the overlay filter complied with it. At this point I decided to stop and ask if I’m making this harder than it should be. The end result is I just want a timer and a box drawn on the video. Is there a better way or a formatting trick to do this ?

  Thanks

• php ffmpeg how can i get current video conversation percent [duplicate]

  7 juillet 2014, par user3710676

  This question already has an answer here :

  • ffmpeg Progress Bar - Encoding Percentage in PHP
    
    2 answers
    

  I have a video converting site. But another video converting sites can show current conversation percent to users. How can they do this ?