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 ...

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2
votes
1answer
77 views

ffmpeg - video with timer

I am currently working with the drawtext and drawbox filters to recreate a similar video appearance to what is shown below in the image. I am trying to see of a possible ways to add a count down timer ...
26
votes
1answer
35k views

How can I crop a video with ffmpeg?

I have an MP4 file of a screen recording that I need to crop down. How can I accomplish this without using expensive tools like Adobe Premier or Final Cut? I prefer ffmpeg because I have used it ...
1
vote
2answers
5k views

How do I recover truncated AVI/DV video?

Short version: I believe I have truncated but otherwise valid AVI/DV files that won't play in any player I've tried (Adobe Premiere, MPC HC, VLC). I assume the stream data is intact but truncated, and ...
8
votes
4answers
15k views

How to losslessly encode a jpg image sequence to a video in ffmpeg?

I have a large set of jpgs that I want to convert to a video losslessly (or, at the very least, very close to losslessly as long as the encoding time isn't much higher than otherwise). Naively, I ...
3
votes
1answer
147 views

ffmpeg drawtext filter - create transparent background with text

I am currently working with the drawtext filter. So far I have only been successful with drawtext option configurations to use the right font and place the text horizontally centered. How could i get ...
3
votes
1answer
5k views

Add an image in front of video using ffmpeg

I have many videos and I need to put an image in front of them for about 5 seconds, but adding it manually and rendering it each time would take really long, so I am asking if it is possible to do so ...
0
votes
2answers
3k views

Error FFMPEG when convert video to MP4 with baseline presset

I have this command in ffmpeg: ffmpeg -i '/var/www/sites/default/files/private/videos/original/reel para web en loop_2_2.mp4' -vf 'scale=640:480' -strict experimental -vco dec 'h264' -vpre ...
8
votes
4answers
5k views

How to get FFMPEG to join non-sequential image files? (skip by 3s)

I have a bunch of images, that follow this pattern. 0001.png 0004.png 0007.png 0010.png 0013.png 0016.png 0019.png ... They're in the correct order, but FFMPEG ignores anything after the first ...
6
votes
1answer
10k views

How do I change frame size, preserving width (using ffmpeg)?

I'm new to this StackExchange site, and to using the ffmpeg encoder. I have a video that is 720x480 (3:2) that I would like to change to 720x406 (16:9) to match the other videos I have for a site. I ...
4
votes
2answers
573 views

What is the difference between ffmpeg and ffmbc now?

Two years ago I've used ffmbc to encode videos to prores, but nowadays ffmpeg also supports prores and avchd. What is the difference between ffmpeg and ffmbc now?
4
votes
3answers
940 views

creating a lossless mp4 screencast

I'm trying to create a screencast for playback on the web. Would like to use h.264, webm, and ogg. The source files are in the Apple Animation codec, and they look perfectly accurate. However when I ...
1
vote
1answer
240 views

Correct lens distortion with ffmpeg

It seems to be possible to correct lens distortion with ffmpeg. According to the manual you can adjust K1 and K2 values. What this means? How to use it correctly? Example still image - captured with ...
3
votes
1answer
96 views

Video converted by FFMPEG has a different duration, why?

I convert videos using FFMPEG. My goal is to convert them to the MP4 container format (MPEG-4 Part 14) with AAC-encoded audio stream and MPEG-4 part 10-encoded video stream. I use the following line ...
1
vote
2answers
139 views

ffmpeg: mute first 2 seconds in all audio streams

Looking to edit a blip out of the beginning of a video/audio file: How can I use ffmpeg to only edit the first two seconds of the clip so that there's no longer that blip in the audio? How do I ...
1
vote
2answers
337 views

Why does quality degrade so much if just cutting video with ffmpeg?

I have tried to cut video with the following command ffmpeg -i "Вспомнить все (Total Recall, 1990).avi" -ss 01:07:29 -to 01:08:05 fight.avi Output: Input #0, avi, from '╨Т╤Б╨┐╨╛╨╝╨╜╨╕╤В╤М ╨▓╤Б╨╡ ...
0
votes
0answers
20 views

Crossfading audio at beginning and ending of video

The html5 video tag has a loop attribute. When playing a video in a continuous loop, it doesn't do this seamlessly. I hear cracks and pops at the beginning. With ffmpeg I am able to trim .05 seconds ...
0
votes
1answer
83 views

Can I run this in one command line (ffmpeg)

I used this command ffmpeg -i thevideo.mp4 -c:a copy -vf 'drawbox= : x=0 : y=0 : color=invert:enable=between(t\,11\,39)' output.mp4 but it runs very slow. So, I took another approach, I copy first ...