Recursive (Into subdirectories) ffmpeg generate jpg from video Post: 302984560

Sponsored Content

Top Forums Shell Programming and Scripting Recursive (Into subdirectories) ffmpeg generate jpg from video Post 302984560 by rbatte1 on Thursday 27th of October 2016 09:04:09 AM

10-27-2016

Moderator

Breaking this up for clarity, you have this:-

Code:

#!/bin/bash

for i in `find /home/videos/ -name "*.mp4" -print0 | xargs -0`
do
   ffmpeg -loglevel panic -y -i "$i" -frames 1 -q:v 5 -vf "select=not(mod(n\,400)),scale=-1:250,tile=3x2" "${i%}.jpg"
   echo "$i"
done

If you want to extract the section of the name you are after, you could do something based on this:-

Code:

#!/bin/bash

for i in `find /home/videos/ -name "*.mp4" -print0 | xargs -0`
do
   ffmpeg -loglevel panic -y -i "$i" -frames 1 -q:v 5 -vf "select=not(mod(n\,400)),scale=-1:250,tile=3x2" "${i%}.jpg"
   echo "$i"
   echo "You are starting with ${i}"
   i="${i#/home/videos/}"
   echo "You have removed the leading /home/videos to leave you with ${i}"
   i="${i%/*}"
   echo "You have removed everything after the next slash to leave you with ${i}"
done

Does that help?

Robin

This User Gave Thanks to rbatte1 For This Post:

rbatte1

View Public Profile for rbatte1

Visit rbatte1's homepage!

Find all posts by rbatte1

7 More Discussions You Might Find Interesting

1. OS X (Apple)

Video grab using ffmpeg?

Does anyone know how to grab video (screen) on Terminal using ffmpeg (not X11). I have written a unix library and I'd like to make a short movie (demo) of it. Tried: I already own SNapz Pro2 but it hangs the system (I have an old Powerbook 15" PPC). I guess my system is too slow for version...

2. AIX

recursive archive directories and subdirectories

Hi everyone, Maybe this is simple question for many of you, but I get confused.:confused: How to archive a parent directory which contains some subdirectories and some files? I have searched this forum, there are some commands like tar,etc, I tried but can not be implemented in my system....

3. UNIX for Dummies Questions & Answers

Touch all files and subdirectories (recursive touch)

I have a folder with many subdirectories and i need to set the modified date to today for everything in it. Please help, thanks! I tried something i found online, find . -print0 | xargs -r0 touch but I got the error: xargs: illegal option -- r

4. Shell Programming and Scripting

Rename all ".JPG" files to ".jpg" under all subfolders...

Hi, Dear all: One question ! ^_^ I'm using bash under Ubuntu 9.10. My question is not to rename all ".JPG" files to ".jpg" in a single folder, but to rename all ".JPG" files to ".jpg" in all subfolders. To rename all ".JPG" to ".jpg" in a single folder, for x in *.JPG; do mv "$x"...

5. UNIX for Advanced & Expert Users

trim 165 MB video clip with ffmpeg (only last 3 minutes)

Hi original video clip > ls -alh reallynotpr0n.flv -rw-r--r-- 1 jonny staff 165M Nov 18 19:57 reallynotpr0n.flvtrying to cut only last 3 minutes of the clip out. > ffmpeg -i reallynotpr0n.flv -vcodec copy -acodec copy -ss 00:52:00 -t 00:03:48 trimmed_video.avi ffmpeg version 0.7.7,...

6. UNIX for Dummies Questions & Answers

recursive copy into a directory and all its subdirectories...

I want to copy a file from the top directory into all the sub-folders and all of the sub-folders of those sub-folder etc. Does anyone have any idea how to do this? Thanks in advance of any help you can give.

7. UNIX for Advanced & Expert Users

Ffmpeg (avconv) + crtmpserver Linux streaming video, no player to play it

Hello Linux experts, I'm working on live video streaming project, and my job is to create video streaming server using Ubuntu 13.04 Here is what I've done so far: 1. Installed crtmpserver from Ubuntu's repositories. 2. Installed ffmpeg To test the server i use webcam as source of video,...

LEARN ABOUT DEBIAN

pfsoutffmpeg

pfsoutffmpeg(1) 					      General Commands Manual						   pfsoutffmpeg(1)

NAME

       pfsoutffmpeg - Read pfs frames from stdin and forward them to ffmpeg program

SYNOPSIS

       pfsoutffmpeg [--help] <ffmpeg options> output_file

DESCRIPTION

       This command is a wrapper for ffmpeg program and can be used to write pfs frames to a compressed video.

       Check the examples section to for sample usage and see manual of ffmpeg for further information.

       Note  that  the	usage  of '-f' switch (input format specifier) and '-i' switch (input file specifier) of the ffmpeg program is implemented
       inside the script and is therefore not allowed.

EXAMPLES

       pfsinrgbe frame%04d.hdr --frames 100:2:200 | pfstmo_reinhard02 -s
	      | pfsgamma -g 1.7 | pfsoutffmpeg -qscale 4 test.avi

	      1. Read HDR frames in RGBE format with the following names:
		 frame0100.hdr, frame0102.hdr, frame0104.hdr,... frame0200.hdr

	      2. Apply local tone mapping operator to each frame (Reinhard2002
		 model, part of the PFSTMO package)

	      3. Apply gamma correction to each tone mapped frame

	      4. Compress frames to test.avi animation

SEE ALSO

       ffmpeg(1) pfsin(1) pfstmo_reinhard02(1) pfsgamma(1)

BUGS

       Frames smaller than 512x384 can cause broken pipe error, due to bug in ppm pipe reading routine in ffmpeg.

       Please report bugs and comments to Rafal Mantiuk <mantiuk@mpi-sb.mpg.de> or Grzegorz Krawczyk <krawczyk@mpi-sb.mpg.de>.

																   pfsoutffmpeg(1)