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• *Desperately* Trying to create a cmd batch script (.bat) to break up and convert many mp4 videos using ffmpeg

  8 septembre 2015, par bobafetta

  I have a ton of videos I need to convert from mp4 to wmv using ffmpeg and break up each file into 10 minute segments, but I am a total cmd scripting newb (in fact, I am a scripting newb :)

  After spending six hours trying to find an answer, I thought I would bring it to you guys.

  The code I have is working a little bit, but I need to be able to read data coming from the command line and send it back into the script for evaluation. I am not sure what code ffmpeg will spit out when it is done processing a video file (when the timestamp reaches an end), but this FOR loop just keeps on trying to create new file segments even though the video is over. This is what I saw when it tried to create a new file, so I think it might work to search for this :

  frame= 0 fps=0.0 q=0.0 Lsize= 1kB time=00:00:00.00 bitrate=N/A

  This is the code I have come up with so far (Don’t laugh :)

  @echo off
  
  setlocal ENABLEEXTENSIONS
  
  setlocal ENABLEDELAYEDEXPANSION
  
  
  
  for %%a in ("*.mp4") do (
  
  set hour=00
  
  
  
  for /L %%i IN (1,1,10) do (
  
  :Beginning
  
      set /a start=%%i-1
  
          set end=%%i
  
          if !start! lss 10 set start=!start!0
  
          if !end! lss 10 set end=!end!0
  
          ffmpeg -ss !hour!:!start!:00 -i "%%a" -b:v 1500k -vcodec msmpeg4 -acodec wmav2 -t !hour!:!end!:00 "Converted\%%~na-!hour!-!start!-!end!.wmv"
  
          if end==60 CALL :Increment
  
      )   
  
  )
  
  
  
  :Increment
  
      set /a !hour!+1
  
      set %%i=1
  
      GOTO :Beginning
  
  pause

  Based on reading this thread was thinking something like this might go in the code, but not sure what to do with it :

  set "dosstring=%*"
  
  
  
  echo.!dosstring!|findstr /C:"frame=    0 fps=0.0 q=0.0 Lsize=       1kB time=00:00:00.00 bitrate=N/A" >nul 2>&1

  Thanks so much for you help !

• ffmpeg for x264 core 136 lib in iOS [on hold]

  23 août 2013, par 官承翰

  I want to develop a service (written in php) to provide mobile platforms(iOS/android/..etc) or desktop PCs to stream videos.

  I have tried a lot and found.

  My iPhone4 didn't support core 136 lib based on x264...it would crash or freeze when I tried playing it.

  Here is my question :

  Can ffmpeg decode video so that iOS can play ?
  Or is there another way to solve it ?
  I am new to these things...

  Thanks in advance

• ffmpeg for x264 core 136 lib in iOS [closed]

  23 août 2013, par 官承翰

  I want to develop a service (written in php) to provide mobile platforms(iOS/android/..etc) or desktop PCs to stream videos.

  I have tried a lot and found.

  My iPhone4 didn't support core 136 lib based on x264...it would crash or freeze when I tried playing it.

  Here is my question :

  Can ffmpeg decode video so that iOS can play ?
  Or is there another way to solve it ?
  I am new to these things...

  Thanks in advance