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• Run through files and applying filter for similar names BATCH and FFMPEG

  25 January 2023, by Edgar Ferreira

  I want to be able to run a script in a folder that contains different angles of a video for example: 0007A,0007B,0008A,0008B. I was able to create it by writing the group of videos but I have like 300 different pairs of those video files and I would like to automatize it, here the one I created using 4 angles:

  


  set n=%1
set i=
set /p savingFolder=Please specify URL of the folder to save the files to:
:loop
set i=%i%!
SET /p groupOfVideos=Please write the group of videos you want me to process:
ffmpeg -i %groupOfVideos%E.avi -i %groupOfVideos%F.avi -i %groupOfVideos%G.avi -i %groupOfVideos%H.avi                          -filter_complex "[0:v][1:v]hstack=inputs=2[top]; [2:v][3:v]hstack=inputs=2[bottom]; [top][bottom]vstack=inputs=2[v]" -map "[v]" -c:v libx264 -pix_fmt yuv420p %groupOfVideos%Z.avi

if i == n GOTO end
move /Y %groupOfVideos%Z.avi %savingFolder%
GOTO loop


  


  As You can see, the loop is created to go back to the question and asks for the next group of video to execute the command with ffmpeg. This time I just would like to include this maybe in a for so each time the for runs gets the pair and then execute the ffmpeg command without asking anything. I have two days thinking on this but maybe I'm looking in a different way.

  


  ECHO OFF
SETLOCAL ENABLEDELAYEDEXPANSION
for %%G in (*A.mp4) do (
set /p MP4A='file %%G'
if exist %MP4A:~0,4%B.mp4 (
set /p MP4B=%MP4A:~0,4%B.mp4        
)
ffmpeg -i %MP4A% -i %MP4B% -filter_complex hstack=inputs=2 -c:v libx264 -pix_fmt yuv420p     %MP4A:~0,4%L.mp4   
pause
)


  


• how to know quicktime how many sequential mts files in avchd folder?

  19 February 2019, by cool jobs

  My question is not based on programming code , but it will be related on programming API .
  problem is , avchd folder have many MTS file there are ..
  when INDEX.BDM file open then show up there are how many clips there is in .. how to know quicktime player this ??
  i really want to make clips( consist of MTS files ) group based on seperated folder .. related with continues MTS files ..

  #!/bin/bash 
  
  /usr/local/bin/mediainfo --fullscan 00000.MTS |  grep "Frame count" | head -n 1 | cut -d':' -f2

  why i ask this , junked MTS file have several frame counts , so can not make clips group , and create and modified time based porgramming logic
  also not perfact ..

  help me how to get clips mts member .

• OpenCV VideoWriter ffmpeg again and again

  9 June 2015, by Michael Hecht

  I know this question was asked hundred of times, nevertheless I got problems.

  I’m working on a new windows (2010 server) systen, installed Python 2.7.9 and OpenCV 2.4.10. I copied opencv_ffmpeg.dll to Python27\opencv_ffmpeg2410.dll. I also installed K-Lite video codecs. If I try to save a video with VideoWriter (MJPG), I get always a file with size 5682 bytes which is not playable. On my old system the same python code works, but over the years I installed several versions of drivers and ffmpeg and whatever. So is there a systematic way to get VideoWriter working if you are on a freshly installed system?