All Questions
60
questions
0
votes
1
answer
455
views
combine two ffmpeg -vf filters into one in Windows batch file
I have two video filters that work as long as I use them in separate batch files and I can't find a way to combine them. The first filter resizes JPG images and then creates a slideshow of them incl. ...
- 13
1
vote
1
answer
1k
views
create slideshow video using ffmpeg and batch file (Windows) and have all images resized to 1080 height and crossfaded
I'm trying to create a 1920x1080 slideshow from images in a folder using a batch file and ffmpeg. The batch file references a txt file containing the list of files to be concatenated. The images have ...
- 13
0
votes
1
answer
203
views
FFmpeg&FFPlay: Option `start`&`end` of filter `trim` have trouble parsing time duration string but `-ss`&`-to` works perfectly
I'm tring to preview cut video before process it on Windows, this Cut.bat is what I tried:
@echo off
@cd/d %~dp0
REM Entered by user
set startTime1=5
REM Entered by user
set startTime2=00:05
REM ...
- 285
0
votes
0
answers
110
views
audio and video not correctly sync after concatenation
totally new to video editing in general and in need of some help =)
command that I'm using (windows batch):
(echo file cucca.jpg.mp4 & echo file cucca.fade.mp4 & echo file cucca.jpg.mp4)>...
- 101
2
votes
0
answers
2k
views
FFmpeg -shortest not working when using -filter_complex with audio and video filters
Pretty much the exact same issue was described here several years ago, but the 'solution' given, while it works, is more inconvenient and doesn't explain why the actual command in question does not ...
- 2,428
1
vote
0
answers
240
views
FFMPEG is throwing Not enough memory resources on Azure VM
I have 500 MB video file which I am converting to MP4 format.
My laptop is i7 and 16 GB Memory and ffmpeg is able to convert the file.
Command used is as follows:
ffmpeg.exe -i "a.mp4" -c:v ...
- 11
1
vote
1
answer
2k
views
ffmpeg about fps, q and interlaced
My command without sound:
ffmpeg -f dshow -rtbufsize 2147.48M -video_size 640x480 -i video="Roxio Video Capture USB" -c:v libx264 -pix_fmt yuv422p -preset ultrafast -bufsize 3968k -crf 0 R:/...
- 11
0
votes
1
answer
120
views
What is a MOJO codec and how can it be used with ffmpeg
NComputing VCast has this MOJO format that can play fast on their thin clients.
As described here: https://support.ncomputing.com/portal/en/kb/articles/vcast-what-is-the-difference-between-web-media-...
- 976
1
vote
1
answer
2k
views
Change aspect ratio with ffmpeg without specifying width or height?
I have a video that's 1920 x 1080 (16:9) and it looks stretched horizontally, because it should be 4:3.
That could be solved by converting it to a file that's 1440 x 1080, but in this case, the exact ...
- 551
0
votes
1
answer
7k
views
Very Slow ffmpeg Encoding Command
I'm using the following ffmpeg command to take a 4K (3840x2160) video (between 5 and 10 minutes), trim it down to 21 seconds, flip it horizontally (across the vertical axis) and switch the red and ...
- 1,620
0
votes
1
answer
850
views
How to set batch file output to be the same as the bat file directory
I've created a .bat file that I can use to drag and drop an mp4 video file onto it to convert reddit videos format to a format supported by whatsapp. All this using ffmpeg
Here's the code of the .bat ...
2
votes
1
answer
13k
views
Unable to open ffmpeg mpegts stream on a UDP port on Windows
I am trying to display a stream from ffmpeg in a video player.
Originally it was a camera input, but the issue is the same for video files and screen captures.
The code I'm using is a variant of ...
- 21
1
vote
1
answer
500
views
"Error initializing" frei0r filter even though it is enabled
I just installed ffmpeg with the frei0r library from gyan.dev but I don't seem to be able to use it for some reason (this is on Windows).
When using this exact command:
ffmpeg -i input.mp4 -filter:v ...
- 2,428
1
vote
1
answer
681
views
ffmpeg fails when executing example command to convert using VP8
I am following the tutorial here, and executing the first example command yeilds an error.
The ffmpeg version I have has libvpx and libvorbis enabled.
When I run this command: ffmpeg -i aaa.mp4 -c:v ...
- 327
7
votes
1
answer
4k
views
How to copy unsupported data streams with ffmpeg?
Briefing
I have some .wmv files (actually, my full batch file deals with multiple filetypes) with weird data streams that are needed for an external program to recognize them.
I'm trying to remove ...
- 329