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• PHP script to close the ffmpeg session

  14 octobre 2016, par Kiran Kumar S

  We’ve made a PHP script to run the ffmpeg on a Windows 7 machine in background as below :

  <?php
  
  date_default_timezone_set('Asia/Kolkata');
  
  $date = date('dmY_His', time());
  
  $outputdst = ("C:/Users/test/Desktop/$date");
  
  $cmd = "ffmpeg -f dshow -i video=screen-capture-recorder -r 15 -t 360 $outputdst.avi ";
  
  
  
  $WshShell = new COM("WScript.Shell");
  
  $WshShell->Run($cmd, 0, false);
  
  ?>

  The script is able to start the screen recording. Now the issue is if I kill the process, then the recorded file is not playing. How to stop ffmpeg without corrupting the recorded file ?

• Batch script to convert all avi to mp4 and delete after conversion using HandBrake command line

  26 février 2014, par RarLines

  So easy and cool batch question. Sorry for this ultimate newbie question  !

  I've a folder which contains hundreds of videos like that :

  Video001 - Introduction.avi
  
  Video002 - History of Stack Overflow.avi
  
  Video003 - Before Asking.avi
  
  ...
  
  Video999 - Conclusion.avi

  I need re-encode all of them with x264 codec. Ffmpeg is very slow so I tried to use HandBrake. There is a command line edition of HB and great default presents. I could write this command for converting only one file with "Normal" present :

  HandBrakeCLI.exe -i "Video001 - Introduction.avi" -o "Video001 - Introduction.mp4" -Z Normal

  My question : How can I convert all of them in folder and delete after conversion process ? Thank you !

  Note : If you think ffmpeg is better solution I can give my fav present. Handbrake says about Normal present :

  Normal:  -e x264  -q 20.0 -a 1 -E faac -B 160 -6 dpl2 -R Auto -D 0.0 --audio-copy-mask aac,ac3,dtshd,dts,mp3 --audio-fallback ffac3 -f mp4 --loose-anamorphic --modulus 2 -m --x264-preset veryfast --h264-profile main --h264-level 4.0

• Python script creates too short video using ffmpeg

  25 mai 2014, par Majzlik

  I use python script to create multiple pictures and call ffmpeg to create video. But there is a problem, because ffmpeg use just few pictures (about 7 - 10 from 160), but throws no error. I’ve tried the same command from commandline and video was correct. I’m calling ffmpeg this way :

  ffmpeg_call = ["ffmpeg", "-r", str(FPS), "-b", "16777216", "-y", "-i", "./sample_%05d.png", FILEOUTNAME + ".mp4"]
  
  subprocess.call(ffmpeg_call)

  and this was command in commandline :

  ffmpeg -r 25 -b 16777216 -y -i ./sample_%05d.png animation.mp4

  I’ve printed these commands to compare and they were the same, so there has to be problem in ffmpeg + python cooperation. Don’t you know, how to fix it ?

  UPDATE :

  this is log from ffmpeg :

  ffmpeg version 0.8.10-4:0.8.10-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav     developers
  
    built on Feb  6 2014 20:56:59 with gcc 4.6.3
  
  *** THIS PROGRAM IS DEPRECATED ***
  
  This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
  
  Input #0, image2, from '/tmp/tmpRKxT6s/ampgraph/tmp/sample_%05d.png':
  
  Duration: 00:00:00.44, start: 0.000000, bitrate: N/A
  
  Stream #0.0: Video: png, pal8, 640x480, 25 fps, 25 tbr, 25 tbn, 25 tbc
  
  Incompatible pixel format 'pal8' for codec 'mpeg4', auto-selecting format 'yuv420p'
  
  [buffer @ 0x19e18a0] w:640 h:480 pixfmt:pal8
  
  [avsink @ 0x19ee1c0] auto-inserting filter 'auto-inserted scaler 0' between the filter 'src' and the filter 'out'
  
  [scale @ 0x19e2fc0] w:640 h:480 fmt:pal8 -> w:640 h:480 fmt:yuv420p flags:0x4
  
  Output #0, mp4, to './ampgraph/animation.mp4':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #0.0: Video: mpeg4, yuv420p, 640x480, q=2-31, 200 kb/s, 25 tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
  Press ctrl-c to stop encoding
  
  frame=   11 fps=  0 q=2.5 Lsize=      46kB time=0.44 bitrate= 859.1kbits/s    
  
  video:45kB audio:0kB global headers:0kB muxing overhead 1.906569%