21
votes
How can I use ffmpeg to split MPEG video into 10 minute chunks?
Just use what is built into ffmpeg to do exactly this.
ffmpeg -i invid.mp4 -threads 3 \
-vcodec copy -f segment -segment_time 10:00 \
-reset_timestamps 1 \
cam_out_h264_%02d.mp4
...
- 1,368
20
votes
How can I use ffmpeg to split MPEG video into 10 minute chunks?
An Alternate more readable way would be
ffmpeg -i input.mp4 -ss 00:00:00 -to 00:10:00 -c copy output1.mp4
ffmpeg -i input.mp4 -ss 00:10:00 -to 00:20:00 -c copy output2.mp4
/**
* -i input file
* -...
- 301
14
votes
Accepted
FFMPEG - Interpolate frames or add motion blur
You can try
ffmpeg -i source.mp4 -filter:v tblend -r 120 result.mp4
or this from https://superuser.com/users/114058/mulvya
ffmpeg -i source.mp4 -filter:v minterpolate -r 120 result.mp4
There are ...
- 156
13
votes
Accepted
How can I stream my desktop/screen to /dev/video1 as a (fake) "webcam" on Linux?
Solved.
Steps to solve:
Unload previous v4l2loopback sudo modprobe -r v4l2loopback
git clone https://github.com/umlaeute/v4l2loopback/
make && sudo make install (if you're using secure boot, ...
- 351
13
votes
How can I use ffmpeg to split MPEG video into 10 minute chunks?
If you want to create really same Chunks must force ffmpeg to create i-frame on the every chunks' first frame so you can use this command for create 0.5 second chunk.
ffmpeg -hide_banner -err_detect ...
10
votes
Accepted
How can I remove the audio track of a media that I import into a Pitivi project?
From https://answers.launchpad.net/ubuntu/+source/pitivi/+question/132343:
Simple! Select your clip, click the Ungroup button in the timeline toolbar, select the video (not the audio), and delete ...
- 373
6
votes
FFMPEG - Interpolate frames or add motion blur
You can use Butterflow as it uses ffmpeg https://github.com/dthpham/butterflow
It's a command-line tool that can:
Increase a video's frame rate by rendering new frames based on motion
(pixel-...
6
votes
Accepted
trim and fade in/out video and audio with avconv (or different tool)
I finally found the time to try the answer suggested by @Mario G., but it seemed extremely cumbersome. I need to do this many dozens of times. I read the documentation of ffmpeg and found it much more ...
- 13.5k
4
votes
Accepted
How to stream a local video to webcam using ffmpeg?
Based on this AU Q&A titled: Is there any way ffmpeg send video to /dev/video0 on Ubuntu? you can do the following:
$ ffmpeg -re -i trial_video.mp4 -map 0:v -f v4l2 /dev/video1
slm♦
- 370k
4
votes
Accepted
ffmpeg: extract audio only from a media file using the best presets (2.0)
No, there is no better way.
When you copy the audio stream with -c:a copy, you are not doing any re-encoding, so you are getting the exact same quality in the source. The only way to improve the ...
- 1,490
3
votes
Accepted
What does (($count+1)) do in this script?
It increments the value of the variable count by one.
The line reads
count=$(($count+1))
This is an assignment to the variable count. The value that is assigned is an arithmetic expansion, $(( ... ...
- 334k
2
votes
Accepted
Video editor w/ stabilization?
As said here, you can use FFmpeg with vid.stab.
If your video is named input.mp4 execute those 2 steps:
ffmpeg -i input.mp4 -vf vidstabdetect=shakiness=10:accuracy=15:result="mytransforms.trf" -f ...
- 650
2
votes
FFMPEG - Interpolate frames or add motion blur
ffmpeg -i input.mp4 -filter:v "minterpolate=mi_mode=2" output.mp4
is for simple dynamic fast frame interpolation using a little bit of motion blur and calculations.
2
votes
simplest non-raid way of pooling nvme ssd drives on a single node - glusterfs?
GlusterFS seems like a pretty bad choice; you need none of the features it brings (that's why nobody uses it on single nodes, it makes no sense), and you get all of the performance and complexity ...
- 29.4k
2
votes
Accepted
Which video editor for Linux has the video speed control effect?
You can change the speed of parts of a video with Kdenlive.
However you can only set a specific speed for a specific part so if you want to have it slowly increase or decrease the speed you need to ...
- 4,248
1
vote
Accepted
Using ffmpeg to Compressed a Two Frame Video
Your question is answered in the ffmpeg examples. You can use something like this:
ffmpeg -loop 1 -framerate 1 -i banner.png -i audio.wav -map 0 -map 1 -c:v libx264 -crf 16 -c:a aac -b:a 92k -...
- 6,158
1
vote
correctly splitting an avi file
Many video codecs encode video frames in two or three different ways: I-frames, P-frames, and B-frames. In short, only I-frames hold enough data to make a video starting point. With -vcodec copy, the ...
- 1,503
1
vote
ffmpeg output.mp4 with size 0
When you see a problem with software you try to launch with php, take your command and launch it directly in a console/terminal and don't forget to replace all variables by the good information. Now ...
- 11
1
vote
trim and fade in/out video and audio with avconv (or different tool)
Trim:
ffmpeg -i input.mts -ss 00:00:20.0 -c copy -t 00:00:30.0 output.mkv
Seek 20 seconds -(i)n input.mkv (and discard, by default) let it play for 30 seconds and discard everything else from there. ...
- 109
1
vote
Hardware accelerated h.264 transcoding on i.MX6
In case no ready-to-use tool turns up:
Googling finds an open-source library called libimxvpuapi to access the i.MX6 VPU, including an example program for encoding (where the source frames are ...
- 32.4k
1
vote
Accepted
Incorrect scene change detection with avconv
First of all,
-vf needs to be specified after the input in order to affect it, and it seems to be the only reason avconv worked for the second command: it must have discarded your filter without even ...
- 1,857
1
vote
Accepted
FFMPEG glue MPEG TS
What parameters should be passed to make result movie smooth with the same quality ?
You probably need to regenerate the timestamps. Each clip has a separate timestamp stream, so when you concatenate ...
- 72.1k
1
vote
FFMPEG - Interpolate frames or add motion blur
I know that my question asked about converting video to a higher framerate with interpolated frames, so this answer can never be the "true" answer, but I have since found the Smooth Video Project (SVP)...
- 2,257
1
vote
FFMPEG - Interpolate frames or add motion blur
you can try with Slowmovideo.
look the demo: https://www.youtube.com/watch?v=YAVRnEg0Vps
- 11
1
vote
How can I use ffmpeg to split MPEG video into 10 minute chunks?
ffmpeg -i input.mp4 -force_key_frames expr:gte(t,n_forced*600) -f segment -segment_time 600 -reset_timestamps 1 -map 0 -segment_format_options movflags=+faststart output_%03d.mp4
To split the video ...
- 111
Only top scored, non community-wiki answers of a minimum length are eligible