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• vcodec copy does not work when start/duration is messed up in video file

  25 janvier 2014, par anishsane

  My Video file shows below meta-data with ffprobe/ffmpeg :

  Duration: 00:44:27.52, start: 1333.760000, bitrate: 335 kb/s
  
    Stream #0.0(und): Video: h264 (Main), yuv420p, 640x480, 25 tbr, 90k tbn, 50 tbc

  Note : The file does not contain audio.

  I am trying to convert this video file to other video file, using ffmpeg/avconv.

  This works : (but encodes h.264 video to mpeg4)

  ffmpeg -i input.mp4 output.mp4

  & it generates output file of proper duration (44:27 - 1333 seconds = 22:14)

  This does not work :

  ffmpeg -i input.mp4 -vcodec copy output.mp4

  Generates file without video.

  The output contains :

  $ avconv -i input.mp4 -vcodec copy output.mp4
  
  
  
  avconv version 0.8.9-6:0.8.9-0ubuntu0.13.10.1, Copyright (c) 2000-2013 the Libav developers
  
    built on Nov  9 2013 19:09:46 with gcc 4.8.1
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
  
    Metadata:
  
      major_brand     : dash
  
      minor_version   : 0
  
      compatible_brands: iso6avc1mp41
  
      creation_time   : 2014-01-19 22:43:21
  
    Duration: 00:44:27.52, start: 1333.760000, bitrate: 335 kb/s
  
      Stream #0.0(und): Video: h264 (Main), yuv420p, 640x480, 25 tbr, 90k tbn, 50 tbc
  
      Metadata:
  
        creation_time   : 2014-01-19 22:43:21
  
  Output #0, mp4, to 'output.mp4':
  
    Metadata:
  
      major_brand     : dash
  
      minor_version   : 0
  
      compatible_brands: iso6avc1mp41
  
      creation_time   : 2014-01-19 22:43:21
  
      encoder         : Lavf53.21.1
  
      Stream #0.0(und): Video: ![0][0][0] / 0x0021, yuv420p, 640x480, q=2-31, 90k tbn, 90k tbc
  
      Metadata:
  
        creation_time   : 2014-01-19 22:43:21
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
  Press ctrl-c to stop encoding
  
  frame=    0 fps=  0 q=-1.0 Lsize=       0kB time=10000000000.00 bitrate=   0.0kbits/s    
  
  video:0kB audio:0kB global headers:0kB muxing overhead inf%

• Running an Terminal command inside a Directory

  22 janvier 2014, par user3220153

  I want to run and tell ffmpeg, a video converter, to combine an audio and video file to one video file. I want to do this in terminal so I can do this repeatedly and quickly.

  This works in Terminal :

  [directoryX]/ ffmpeg -i [directoryX]/sound.wav -i [directoryX]/movie.avi video_finale.mpg
  Pause

  But I do NOT want to keep specifying the directory in Terminal because there are many folders in which I need to do this. I would like to create a .command file, copy it and the ffmpeg application (very small), and past it in every folder that needs a video conversion. I would then run the .command file and it would execute the command mentioned above in the local folder. What is the best way to approach this ???

  This line in .command file does NOT work (inside the folder with ffmpeg, audio and video) :

  ffmpeg -i sound.wav -i movie.avi video_finale.mpg
  Pause

  I get :

  wireless-10-146-122-30:~ yagostucky$ /Volumes/TURBOLINEA/inFrontOfMe/footage/jan-19-2014/dollGhost_duke_act1_scene3_take1/batch.command ; exit;
  
  /Volumes/TURBOLINEA/inFrontOfMe/footage/jan-19-2014/dollGhost_duke_act1_scene3_take1/batch.command: line 1: ffmpeg: command not found
  
  /Volumes/TURBOLINEA/inFrontOfMe/footage/jan-19-2014/dollGhost_duke_act1_scene3_take1/batch.command: line 2: pause: command not found
  
  logout
  
  
  
  [Process completed]

• Centos : TERM environment Variable Not Set

  21 janvier 2014, par Architact

  I am working on a mobile application which allows users to upload videos, upon upload the videos are converted to mp4 format, I am using a shell script for that purpose, the script was working fine on our last server but we switched our server and now it has stopped working, the log files of apache are printing.

  [Tue Jan 21 00:57:37.003944 2014] [:error] TERM environment variable not set.
  
  [Tue Jan 21 00:57:37.148531 2014] [:error] ./script.sh: line 3: ffmpeg: command not found
  
  [Tue Jan 21 00:57:37.148794 2014] [:error] script.sh: line 4: ffmpeg: command not found

  The content of script.sh are

  #!/bin/bash -p
  
  clear
  
  ffmpeg -i $filename -strict experimental -ar 22050 converted.mp4<br />
  
  ffmpeg -itsoffset -1 -i  converted.mp4 -vframes 25 -filter:v scale="min(500\, iw):-1"  thumbnail.png

  I am calling the script form php using

  shell_exec("script.sh 52567afa374c61381399290.mp4");

  Any help would be greatly appreciated.

  Thanks