To call ffmpeg in a loop


Login or Register for Dates, Times and to Reply

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting To call ffmpeg in a loop
# 1  
To call ffmpeg in a loop

Hello, I was inquiring myself if it's possible to call ffmpeg in loop, an in each iteration, ffmpeg will pick one of the files in a directory and produce a new with a slightest different name. Can be as simple as a '*' in the beginning of the file name.

I know how to use ffmpeg to do the modifications that I want, my doubts are how to read all files through the loop, and how to tell ffmpeg that the output file name should be the same as the input plus some modification.

Thanks for your time.
# 2  
Please become accustomed to provide decent context info of your problem.

It is always helpful to carefully and detailedly phrase a request, and to support it with system info like OS and shell, related environment (variables, options), preferred tools, adequate (representative) sample input and desired output data and the logics connecting the two including your own attempts at a solution, and, if existent, system (error) messages verbatim, to avoid ambiguities and keep people from guessing.
# 3  
Hello colt,


You can certainly make a loop based on a list of files read from a single or multiple directories dependant on your need. You then just need to call ffmpeg referring to each file in turn.

I have a few to questions pose in response first:-
  • Is this homework/assignment? There are specific forums for these.
  • What have you tried so far?
  • What output/errors do you get?
  • What OS and version are you using?
  • What are your preferred tools? (C, shell, perl, awk, etc.)
  • What logical process have you considered? (to help steer us to follow what you are trying to achieve)
Most importantly, What have you tried so far?

There are probably many ways to achieve most tasks, so giving us an idea of your style and thoughts will help us guide you to an answer most suitable to you so you can adjust it to suit your needs in future.


We're all here to learn and getting the relevant information will help us all.


Kind regards,
Robin
Login or Register for Dates, Times and to Reply

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #389
Difficulty: Medium
Rocky Mountain BASIC (RMB) is a dialect of the BASIC programming language created by AIX.
True or False?

8 More Discussions You Might Find Interesting

1. Windows & DOS: Issues & Discussions

Ffmpeg

Hello everyone, I am new here so forgive me if this is in the wrong place. I am new to shell script and am trying to write a script to use with a program called ffmpeg. Would this be something I could get help with here? set /p VIDEO=Enter full name of video file on desktop: md... (7 Replies)
Discussion started by: junorich
7 Replies

2. Shell Programming and Scripting

How to call a string by string from a file to use in for loop?

Hi, I have a below sql query. select * from table where name in ('${name}); I have a requirement to automate this as here i need to pass the string value name from txt file. The text file contains the differnet special characters and i have some 200 names in the text file as follows. 3"... (3 Replies)
Discussion started by: Samah
3 Replies

3. Shell Programming and Scripting

How to call a stored procedure inside a loop?

How to call a stored procedure inside a loop export PATH=$ORACLE_HOME/bin:$PATH ORACLE_SID=xxxx; export ORACLE_SID ORAENV_ASK=NO TODAY_DATE=$(date +"%Y%m%d") LOGFILE=/var/opt/gogd/cust/scripts/${TODAY_DATE}_sap_cust_rel.log echo 'Connected' PARCUST=sap_cust_rel.par sqlldr... (1 Reply)
Discussion started by: ashwanth
1 Replies

4. Shell Programming and Scripting

Running ffmpeg in loop seems to change reading from file

Hi everyone, I am fairly new to shell scripting. I want to read in numbers from a file (one number per line). This works perfectly fine while read CurrentLine do echo $CurrentLine done < myfile and yields the correct output: 272 745 123 If I however run a ffmpeg... (2 Replies)
Discussion started by: Thriceguy
2 Replies

5. UNIX for Advanced & Expert Users

System call failed with 127 .. after 500 times when called in loop

Hi Experts, I have a code like this. ===== #include.... int main() { int count = 0; while(1){ printf("\n Interation number is: %d \n ",count); rv = system(" test.sh > log.txt " ); if (-1 == rv) { printf("Could not generate static log: error... (12 Replies)
Discussion started by: binnyjeshan
12 Replies

6. Shell Programming and Scripting

call a function in for loop

Hi all, I am trying to call a function in for loop in the below format #!/bin/bash abc() { commands } for (( i=0; i<=10; i++ )) do abc done The error i am getting when trying to execute: syntax error: unexpected end of file canany one help me where i am going wrong?? (5 Replies)
Discussion started by: gsr_kashyap
5 Replies

7. Shell Programming and Scripting

Call a infinite loop

Hi All, I need to run an infinite loop. requirement below: function1 --> creates a file file1 function2 ---> need to call if the file creates i am running these both function via a script --> script.sh i need to run the function1 first and if the file file1 creates then need to run the... (3 Replies)
Discussion started by: satyaranjon
3 Replies

8. Shell Programming and Scripting

how to call shell script from pl/sql loop

Hello, I am doing a shell script which contain a pl/sql loop to search for 3 values, i would like to call another shell script inside this sql loop each time it find the values. so how can i call shell script from pl/sql using its variables, any idea? Here is idea about the code: my... (1 Reply)
Discussion started by: rosalinda
1 Replies

Featured Tech Videos