All Questions
Tagged with command-line video
184
questions
0
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0
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12
views
How do you create an ffmpeg lossless image without re-encoding?
I'm using the command below but not sure if it’s really lossless and without re-encoding? Is there specific command to create lossless image and without re-encoding? I'm new to this.
ffmpeg -lavfi &...
- 11
2
votes
1
answer
106
views
What a correct playlist.m3u8 should contain, or should look like?
24/06/2024: [Presentation of the problem]
I had dowloaded some videos from the Internet, few years ago.
I obtained many files:
a series of files in .ts
a single file playlist.m3u8
In my example:
A ...
- 57
0
votes
1
answer
58
views
How to solve a final pb when merging a series of .ts file with concat command of FFmpeg?
I had dowloaded some videos from the Internet, feaw years ago…
I obtained many files: a series of files in .ts
In my example: a series of 306 files named from segment1_4_av.ts to segment306_4_av.ts
A ...
- 57
1
vote
1
answer
51
views
why don't work old batch ffmpeg extraestereo command in new version?
I use this batch command for years in ffmpeg, but from update to the last version don't work and don't see in documentation whats the problem.
ffmpeg -i C:\Pelis\video.mkv -vcodec copy -map 0:a -map 0:...
- 11
0
votes
1
answer
37
views
How to use ffmpeg speedup video specific time range in one line ffmpeg cli
I try following splited cli, they work well
ffmpeg -i "$input_file" -filter_complex "[0:v]trim=start=0:end=10,setpts=PTS/10[v1];[0:a]atrim=start=0:end=10,asetpts=PTS/10[a1]" -map &...
- 101
0
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0
answers
119
views
FFMpeg removes the video stream unintentionally
I used the following ffmpeg command to downscale a video. But surprisingly the output did not have any video stream, just an audio-only output.
ffmpeg -y -i "input.mov" -c:v libx264 -vf ...
- 123
0
votes
0
answers
158
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FFMpeg creates image from a timestamp but not from another timestamp
While trying to create an image from a video, the following command does not create any output and completes with the warning
Command with timestamp 7 sec:
ffmpeg -ss 00:00:7.0 -i "input.mp4"...
- 123
0
votes
0
answers
66
views
FFMpeg series thumbnails created less than expected
I have the following ffmpeg command to create a 576p video, and series thumbnails at an interval of every 2 seconds.
ffmpeg -hwaccel cuvid -hwaccel_output_format cuda -i input_video.mp4 \
-vf "...
- 123
0
votes
0
answers
149
views
Ffmpeg: color related commands
I use hlae+ffmpeg for recording and for parameters of recording i set: -c:v ffv1 -pix_fmt gbrap16le -coder -2 -g 1 -threads 4 -context 1 -slices 30 -slicecrc 1 -level 3 -fps_mode passthrough -...
- 1
0
votes
1
answer
375
views
Send info from ffmpeg to text file & then parsing into a new file
I am trying to scan a directory of .mkv files and output the volume information to out.txt and then parse out.txt for volume_max and send it to log.txt using
for %i in (*.mkv) do ffmpeg -i "%i&...
- 3
2
votes
2
answers
705
views
How can I setup ffmpeg to continuously produce 1 second videos from piped jpgs?
I am using ffmpeg on Ubuntu 22.04 to create 1 second mp4 videos from piped jpgs. The only issue that I have is that ffmpeg stops executing after the first set of jpgs is piped in. I need ffmpeg to ...
- 23
2
votes
1
answer
1k
views
ffmpeg nvenc throws an error after I modified an x264 command
I'm trying to convert this command to work on nvenc hvec video encoder to just make it faster and utilize my 3060:
ffmpeg -i video.mkv -i logo.png -filter_complex "[1]format=rgba,...
- 25
1
vote
0
answers
91
views
Going round in circles with ffmpeg concat and filter_complex
Since I've 'flipped' my classroom I'm trying to work out the ffmpeg command that will concat a set of m4a audio files with a set of matching static PNGs to create a pre-recorded talk.
I have no issues ...
- 11
1
vote
0
answers
758
views
Generate a video with an image every 5 seconds using ffmpeg
I want to create a video from command line with some images like those:
-rw-r--r-- 1 dt dt 3360622 Sep 4 23:57 IMG_0670.jpg
-rw-r--r-- 1 dt dt 2949398 Sep 4 23:57 IMG_0671.jpg
-rw-r--r-- 1 ...
1
vote
0
answers
896
views
FFMpeg autorotate video and image output
I have a video which I'm trying to downscale to a video output, and also create a thumbnail image at every 2 seconds using a single FFMpeg command(hardware accelerated). Following is the command:
...
- 123
0
votes
0
answers
705
views
FFMPEG command to create subtitles isn't using the right font
I'm trying to use python to run an ffmpeg command to add subtitles onto a video, using an srt file.
I tried the following:
ffmpeg -y -i output.mp4 -vf subtitles=testsrt.srt:force_style='Fontname=...
1
vote
0
answers
176
views
is there a way to change dynamic the water mark text color when using ffmpeg depending on the background color when recording a video file?
This command in the command prompt window is working fine and recording the entire screen:
ffmpeg -f gdigrab -framerate 24 -i desktop -preset ultrafast -pix_fmt yuv420p out.mp4
this command prompt ...
- 163
-1
votes
1
answer
749
views
Two video overlays another with FFMPEG
I'm a new user of FFmpeg, and I want to insert a logo on two videos (one video overlay another) with one command.
FFmpeg command (ok):
ffmpeg -stream_loop -1 -i background.mp4 -i input.mp4 -i logo....
- 145
1
vote
1
answer
66
views
VIdeo overlays another incorrectly - background is over overlay
I'm a new user of FFmpeg, and I want to insert a logo on two videos (one video overlay another) with one command.
FFmpeg command (ok):
ffmpeg -stream_loop -1 -i background1080p.mp4 -i input1080p.mp4 ...
- 145
-1
votes
2
answers
164
views
How to delete all files in all subdirectories while keeping the biggest file in each subdirectory under Linux? [duplicate]
This is my first question, thank you for allowing me to ask and for reading my question!
I am under Ubuntu 22.04 w. GNOME Shell and the bash shell.
I have a folder with over 800 subdirectories.
Each ...
- 11
0
votes
1
answer
212
views
What is the difference between these 2 FFMPEG commands?
I am trying to take 5 static images named (1,2,3,4 and 5.jpg) and turn them in a 25 second video with each image being 5 seconds long.
ffmpeg -y -r 25 -loop 1 -t 5 -i 1.jpg -s 1080x1920 video1.mp4
...
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2
votes
1
answer
9k
views
Using ffmpeg to download m3u8 video in two ways resulting in two vastly different sizes; Why?
I'm trying to download a m3u8 playlist (which contains 1.ts, 2.ts,..., xxx.ts) via ffmpeg. I'm doing it in two different ways:
Directly download:
ffmpeg -i "https://filelocation/chunked/myfile....
- 21
-1
votes
1
answer
477
views
How can I burn in .ass file and a watermark to a video file using ffmpeg simultaneously?
I want to add subtitles and a watermark to a video using ffmpeg. For now, I'm using Handbrake to burn in the subtitles and later I execute an ffmpeg command to add a watermark from png file.
The ...
- 25
0
votes
0
answers
669
views
combine N_m3u8DL-RE & SubtitleEdit mkvmerge using CMD
How do I combine N_m3u8DL-RE with SubtitleEdit using CMD
I want to Download a video file with N_m3u8DL-RE, but before merging, I want to use the
SubtitleEdit /convert video.nl.srt srt /...
- 1
0
votes
1
answer
390
views
Where does completed file go by default when merging audio and video files together using ffmpeg?
So I merged an audio and video file together earlier using ffmpeg. I Did a full search on my hardrive for outPutFile.mp4 and it was nonexistant.
Now I'm running another, slightly altered command using ...
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1
vote
0
answers
173
views
How to get exact timecode splitting using ffmpeg commands
I have a file called ffmpeg.cmd which has inpoints and outpoints.
file 'testA.webm'
inpoint 00:02:11.032
outpoint 00:02:36.900
file 'testA.webm'
inpoint 00:09:06.100
outpoint 00:09:43.799
If I run ...
- 121
1
vote
1
answer
2k
views
Is it possible on FFMPEG to send RTSP raw frames to pipe and write video segments by time to the disk?
I'm trying to receive RTSP frames to be processed by OpenCV, via ffmpeg using python. This is ok.
However I also need to write this video to disk one video each minute. This last part is the problem.
...
0
votes
0
answers
100
views
FFMPEG request is slow
I need to concatenate images to a video. Images contain black and white pixels, but I need to save quality of them as much as possible with saving space of disk. So, I don't need to use .mov.
And ...
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1
vote
1
answer
307
views
FFmpeg command not producing desired video duration from image sequence
I have a set of 5 images and I want to use FFmpeg to create a video sequence from them. I am using the following command to achieve this:
ffmpeg -pattern_type glob -i '*_0[0-5].png' -r 25 -t 8 -c:v ...
2
votes
1
answer
763
views
How to map ffmpeg multiple outputs to pipes
I'm working on a transcoder backend to a project that intends to serve static mpeg-dash manifests and files for a frontend player. And I'm trying to figure out how I can get multiple outputs into ...
- 31
1
vote
0
answers
445
views
ffmpeg input/output error when using mac system temp file path
I've got an ffmpeg command that is supposed to output a thumbnail for a given video at a resolution of [W]x720.
The input videos are uploaded and stored temporarily in the /var/folders directory on OS ...
- 131
0
votes
1
answer
254
views
Combine 2 FFMPEG commands - 1. Create a video loop and 2. Add track to loop X times / Add track to loop duration of video loop
I have these 2 commands for FFMPEG, but can't work out how to use the output from the first command and link into the 2nd one, and use them as a single process. I have the following:
Loop video for ...
- 1
0
votes
0
answers
223
views
How to cut 1 video into many different videos with different lengths? ( FFMPEG)
I need to cut a video with a length of several minutes into many different videos, In all but the videos cut from the original video will have different short lengths. what do i need to do?
This is ...
- 145
0
votes
0
answers
869
views
ffmpeg command into batch command
I was trying to get an command I use and have to apply to batch list of files instead of doing it for each file.
Command I use for ffmpeg (has to keep -i and -c) - ffmpeg -i in.ts -c copy out.mp4
How ...
- 11
1
vote
0
answers
918
views
need help for proper commands in libplacebo filter
Before you comment guys, let me ask if libplacebo filter only works with vulkan/cuda and not dxva2? Because i've already seen so many examples how to use the libplacebo with vulkan/cuda and as for me, ...
0
votes
0
answers
710
views
Copy all FFMPEG streams and metadata except the first video stream
I have some "voice memos" that were recorded through the video camera app. They have huge video streams, but I just want the audio.
How can I copy all streams via ffmpeg except the first ...
- 179
1
vote
1
answer
210
views
Split folder of multipage TIFFs into frames and join into movie on MacOS command line
I'm using a FLIR Boson thermal imaging camera, whose 'video' output consists of sequences of 'one-second long' multipage TIFF files.
The frame rate is variable, but averages 8.6 fps. So, each TIFF can ...
- 11
0
votes
0
answers
898
views
ffmpeg output with assumed duration 0 on Android
I noticed that videos generated by FFMPEG have a duration of 0 on Android even when I try a full clone.
I tried the following commands, but the only one that had any effect was with -movflags ...
- 13
1
vote
0
answers
97
views
ffmpeg, put 5000 trimmed inputs and filter complex into file?
I have a huge monolithic ffmpeg command and unfortunately I am not able to run it because "the command line is too long." I'm on Windows 10. The exact input command and output can be seen ...
- 1,610
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
2k
views
FFmpeg command line options
I have found a command on this blog which works great to encode videos using H.265/HEVC in an Apple-compatible way:
ffmpeg -i input -c:v libx265 -preset fast -crf 28 -tag:v hvc1 -c:a aac -ac 2 -b:a ...
- 103
5
votes
1
answer
10k
views
How do i convert animated webp to Video?
Goal :
convert Webp to mp4
what i have tried :
ffmpeg -i filename.webp filename.mp4
it's clearly not the good code. can anyone show me the way
it can be with anything like imagemagick, sharp
- 51
0
votes
1
answer
1k
views
ffmpeg adding subtitles with options
Hi I'm having trouble adding options to subtitles: I can only add 1 attribute.
ffmpeg -i "video.mp4" -vf 'subtitles=subtitles.srt:force_style=Fontname=Z003,PrimaryColour=&HCCFF0000' -y &...
0
votes
1
answer
2k
views
"Cannot find matching stream" error while using FFMPEG filter_complex to mute selected audio channel
ffmpeg -i stereoaudio.wav -filter_complex "[0:a]atrim=start=0:duration=5[a1];[0:a]atrim=start=5:duration=17,asetpts=PTS-STARTPTS[b2];[b2]pan=stereo|c1=c1[c3];[a1][c3]concat=n=3:v=0:a=1[d4];[0:a]...
- 13
0
votes
0
answers
510
views
Extracting a video via ffmpeg command line is not precise [duplicate]
I am trying to extract a video clip from an mkv file, but its not accurate. I played my mkv file and noted the point e.g. starting 00:06:20 till 10 seconds. Now I executed a command like this
ffmpeg -...
- 1,629
1
vote
1
answer
452
views
Fade in/out PNG watermark overlay on video
I have an FFmpeg command in a script that crossfades a main video with an outro and then overlays a semi-transparent PNG watermark on top of it.
ffmpeg -y -i "$1" -i "outro.mp4" -i ...
- 13k
0
votes
1
answer
1k
views
ffmpeg hls segment name outputting full file path for %03d
i am trying to create a batch video converter for windows to convert some of my mkv media to hls the issue i am having is when i try and get segments name index001.ts / index002.ts it does not work ...
- 13
0
votes
1
answer
2k
views
Pattern_Type Glob or other *.JPG wildcard input file support for Windows 10?
I am using Windows 10 with "ffmpeg version 4.4-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers built with gcc 10.2.0 (Rev6, Built by MSYS2 project)".
I am writing a ...
- 13
0
votes
1
answer
403
views
ffmpeg split JPEG-encoded MOV video into frames without reencoding
I have a MOV video file from an old digital camera where the video stream is just a series of JPEGs. I'm trying to extract those JPEGs without reencoding them (or at least come as close to the ...
- 175
0
votes
1
answer
460
views
VLC Command Line: --clone-vout-list not working as expected - Open 2 OpenGL Windows
i would like to play a video with VLC on 2 monitors simultaneously. In the command line help the following is described about cloning:
Clone video filter (clone) Duplicate your video to multiple ...
