Search Results
| Search type | Search syntax |
|---|---|
| Tags | [tag] |
| Exact | "words here" |
| Author |
user:1234 user:me (yours) |
| Score |
score:3 (3+) score:0 (none) |
| Answers |
answers:3 (3+) answers:0 (none) isaccepted:yes hasaccepted:no inquestion:1234 |
| Views | views:250 |
| Code | code:"if (foo != bar)" |
| Sections |
title:apples body:"apples oranges" |
| URL | url:"*.example.com" |
| Saves | in:saves |
| Status |
closed:yes duplicate:no migrated:no wiki:no |
| Types |
is:question is:answer |
| Exclude |
-[tag] -apples |
| For more details on advanced search visit our help page | |
Results tagged with ffmpeg
Search options not deleted
user 17189
FFmpeg is a free software project that produces libraries and programs for handling multimedia data. The most notable parts of FFmpeg are libavcodec, an audio/video codec library used by several other projects, libavformat, an audio/video container mux and demux library, and the ffmpeg command line program for transcoding multimedia files.
2
votes
Accepted
ffplay - Live capture video gradually lags behind
So I solved this by simply adding an audio stream instead of having "none" selected. Doing this makes -framedrop (default) work properly. I left the master clock as default as well (audio) instead o …
- 81
2
votes
1
answer
2k
views
ffplay - Live capture video gradually lags behind
I have a Magewell capture device that I'm trying to preview with ffplay. It works great, except over time the video will become choppy and lag behind the actual live feed. Right clicking on the ffpl …
- 81
0
votes
1
answer
3k
views
ffplay - Is there a way to display a video and spectrogram in the same output?
I'm trying to analyze a spectrogram while simultaneously checking the video, without having to switch between them. Something like this, but with the video combined in the same output:
The idea is …
- 81
1
vote
1
answer
2k
views
Delaying video overlay in ffmpeg without frame drops
When I do this, ffmpeg complains about buffer overflow and the 2nd video drops tons of frames. How do I prevent the frame drops? … ffmpeg -y -loop 1 -i ~/Desktop/FP2.tiff -i ~/Desktop/fp.mov -itsoffset 2 -i ~/Desktop/fp.mov -lavfi \
"[0:v]fps=60[bg]; \
[bg][1:v]overlay=10:(main_h/2)-(overlay_h/2):format=rgb[v1]; \
[v1][2:v]overlay …
- 81
0
votes
1
answer
904
views
How do I remove excess video duration in ffmpeg when using lavfi?
ffmpeg -y -framerate 60 -loop 1 -ss 0 -t 21 -i ~/Desktop/FP2.tiff -ss 0 -t 21 -i ~/Desktop/fp.mov -lavfi \
"[0]fade=t=in:st=0:d=1,fade=t=out:st=20:d=1,trim=end=21[bg]; \
[1:v]setpts=(PTS-STARTPTS)+1/TB …
- 81
1
vote
2
answers
290
views
Can ffmpeg downsample pixels perfectly?
I've tried all the swsflags options and figure the answer is no, but it can't hurt to ask just in case. For example: downsample from 1920x1080 to 960x540, then upsample back to 1080 using the neighbo …
- 81
0
votes
1
answer
1k
views
ffmpeg fade to specific color values over time
I have a background image that I'm trying to fade to specific color values using this filter: lutrgb=enable='gte(t,3)':'r=0.3*val:g=0.3*val:b=0.3*val'
This almost works, but it changes the values ins …
- 81
0
votes
1
answer
612
views
Can you encode intra-frame videos from inter-frame without loss?
I'm aware of the differences between intra and inter, but I'm not the most savvy about reencoding them after the fact. Is encoding with intra from an inter-coded video the same as if you originally u …
- 81