I am currently cutting a video and after it is cut I am adding an layer of text like this:
$cut_video_cmd = 'ffmpeg -i "'.$video_path.'" -vf scale=640:-1 -ss 30 -t 10 "'.$video_path.'"';
$add_text_to_video_cmd = 'ffmpeg -i "'.$video_path.'" -vf drawtext="fontfile='.public_path('assets/fonts/Roboto-Regular.ttf').': \
text=\'Stack Overflow\': fontcolor=white: fontsize=24: box=1: boxcolor=black#0.5: \
boxborderw=5: x=(w-text_w)/2: y=(h-text_h)/2" -codec:a copy "'.$video_path.'.overlay.mp4"';
It works great, but I am wondering if there is a way to combine these two commands? Or any way to simplify this process? I am failing to figure this out.
Thanks a lot for any help!
Chain linear filters with a comma. Simplified example of your command:
ffmpeg -i input -ss 30 -t 10 -vf scale=640:-2,drawtext -codec:a copy output
Related
I am adding a 1.mp4 on a video 2.mp4, and i want to add a mask on overlay video(1.mp4)
I want to apply this mask on 1.mp4
I'm using chrome key right now
ffmpeg -t 5 -r 30 -f lavfi -i color=c=black:s=640x360
-i 1.mp4
-i mask2.png
-i 2.mp4
-filter_complex "
[1:v]scale=500x281[v1];
[2]scale=500x281[mask];
[v1][mask]overlay, chromakey=0x00FF00:0.25:0.08 [v2];
[3:v]scale=640x360[v3];
[0][v3]overlay [out1];
[out1][v2]overlay=0:0"
-y output.mp4
But it also removes color from videos.
I'm not sure but i think it can be done by negate
also i don't need audio command, i already done that part
Thanks
ffmpeg -i foo.mp4 -filter_complex "fade=d=0.5, reverse, fade=d=0.5, reverse" output.mp4
can be used to fade in and out foo.mp4 video. (we do not care about audio). According to https://video.stackexchange.com/questions/19867/how-to-fade-in-out-a-video-audio-clip-with-unknown-duration
It's good but only works in the simple situation of 1 input video, and 1 output. Now, how can I apply the fade in and out effect in the following more complex situation? I'm trying to concat a.jpg (a picture) with bar.mp4. I want only the bar.mp4 portion to fade in and out.
ffmpeg -loop 1 -t 2 -framerate 1 -i a.jpg -f lavfi -t 2 -i anullsrc -r 24 -i bar.mp4 -filter_complex "[0][1][2:v][2:a] concat=n=2:v=1:a=1 [vpre][a];[vpre]fps=24[v]" -map "[v]" -map "[a]" out.mp4 -y
Of course, I could first create a temporary temp.mp4 from bar.mp4 by running the first command, then input temp.mp4 in my second command. This involves an extra step and extra encoding. Could anyone help fix the commands or suggest something even better?
Use
ffmpeg -loop 1 -t 2 -framerate 24 -i a.jpg -f lavfi -t 2 -i anullsrc -r 24 -i bar.mp4 -filter_complex "[2:v]fade=d=0.5, reverse, fade=d=0.5, reverse[v2];[0][1][v2][2:a] concat=n=2:v=1:a=1 [v][a]" -map "[v]" -map "[a]" out.mp4 -y
I am trying to stitch multiple images with some zoom-pan happening on the images to create a video.
Command:-
ffmpeg -f lavfi -r 30 -t 10 -i \
color=#000000:1920x1080 \
-f lavfi \
-r 30 -t 10 \
-i aevalsrc=0 \
-i "image-1.png" \
-i "image-2.png" \
-y -filter_complex \
"[0:v]fifo[bg];\
[2:v]setpts=PTS-STARTPTS+0/TB,scale=4455:2506:force_original_aspect_ratio=decrease,zoompan=z='min(zoom+0.0015,2.5)':x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)':d=150:fps='30':s='1920x1080'[v2];\
[bg][v2]overlay=0:0:enable='between(t,0, 5)'[bg];\
[3:v]setpts=PTS-STARTPTS+5.07/TB,scale=3840:2160:force_original_aspect_ratio=decrease,zoompan=z='min(zoom+0.0015,2.5)':x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)':d=150:fps='30':s='1920x1080'[v3];\
[bg][v3]overlay=0:0:enable='between(t,5, 10)'[bg];\
[1:a]amix=inputs=1:duration=first:dropout_transition=0" \
-map "[bg]" -vcodec "libx264" -preset "veryfast" -crf "15" "output.mp4"
The output is not as expected, it only zooms only on the first image, the second image is just static.
FFMPEG version - 4.1
Use
ffmpeg -f lavfi -i color=#000000:1920x1080:r=30:d=10 \
-f lavfi -t 10 -i anullsrc \
-i "image-1.png" \
-i "image-2.png" \
-filter_complex \
"[2:v]scale=4455:2506:force_original_aspect_ratio=decrease,zoompan=z='min(zoom+0.0015,2.5)':x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)':d=150:fps=30:s='1920x1080'[v2];\
[bg][v2]overlay=0:0:enable='between(t,0,5)'[bg];\
[3:v]scale=3840:2160:force_original_aspect_ratio=decrease,zoompan=z='min(zoom+0.0015,2.5)':x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)':d=150:fps=30:s='1920x1080',setpts=PTS+5/TB[v3];\
[bg][v3]overlay=0:0:enable='between(t,5,10)'[bg];\
-map "[bg]" -map 1:a -vcodec libx264 -preset veryfast -crf 15 -y "output.mp4"
For lavfi sources, it's best to set frame rate and duration where applicable within the filter.
Since you're not looping the images, -t won't have any effect. Since zoompan will set fps in its output, you can skip input rate setting. And since it's a single image, setpts before zoompan has no relevance. It should be set only on the zoompan whose timestamps need to be shifted.
Since you've only one audio, no point sending it to amix - there's nothing to mix with! Just map it directly.
Im currently trying to combine trim and delogo together, looked over a few tutorials but i just have no clue.
trim:
ffmpeg -i input.mp4 -ss 00:00:05 -t 00:00:10 -async 1 ouput.mp4
delogo:
ffmpeg -i input.mp4 -vf "delogo=x=1075:y=9:w=170:h=52" -c:a copy ouput.mp4
I want to combine these two commands so i can run one execution which will do both within, instead of 2 separate commands
As simple as
ffmpeg -i input.mp4 -ss 5 -t 10 -vf "delogo=x=1075:y=9:w=170:h=52" -c:a copy ouput.mp4
This question already has answers here:
FFmpeg command for crossfading between 5 videos .How to manage setpts=PTS-STARTPTS?
(2 answers)
Closed 3 years ago.
Im trying to join 3 videos together with a crossfade effect.
I can get this working for 2 videos (sourced from stackoverflow but cant find the link):
ffmpeg -y -i part1.mp4 -i part2.mp4 -f lavfi -i color=black:s=1920x1080 -filter_complex \
"[0:v]format=pix_fmts=yuva420p,fade=t=out:st=10:d=1:alpha=1,setpts=PTS-STARTPTS[va0]; \
[1:v]format=pix_fmts=yuva420p,fade=t=in:st=0:d=1:alpha=1,setpts=PTS-STARTPTS+10/TB[va1]; \
[2:v]trim=duration=20[over]; \
[over][va0]overlay[over1]; \
[over1][va1]overlay=format=yuv420[outv]" \
-vcodec libx264 -map [outv] merged.mp4
But cant work out how to make this work for 3 videos.
I don't need any audio. Any ideas?
Cheers,
ffmpeg-concat is the easiest way to accomplish what you want and allows you to use a bunch of sexy OpenGL transitions, with the default being crossfade.
ffmpeg-concat 0.mp4 1.mp4 2.mp4 -o out.mp4
ffmpeg-gl-transition is a more complicated custom ffmpeg filter which allows you to use GLSL to smoothly transition between two video streams. This filter is significantly easier to use and customize than the alternatives listed here.
./ffmpeg -i 0.mp4 -i 1.mp4 -filter_complex "gltransition=duration=4:offset=1.5" out.mp4
ok so im not sure if this is the best way to do this but i got it working:
ffmpeg -y -i part1.mp4 -i part2.mp4 -i part3.mp4 -f lavfi -i color=black:s=1920x1080 -filter_complex \
"[0:v]format=pix_fmts=yuva420p,fade=t=out:st=10:d=1:alpha=1,setpts=PTS-STARTPTS[v0]; \
[1:v]format=pix_fmts=yuva420p,fade=t=in:st=0:d=1:alpha=1,fade=t=out:st=10:d=1:alpha=1,setpts=PTS-STARTPTS+10/TB[v1]; \
[2:v]format=pix_fmts=yuva420p,fade=t=in:st=0:d=1:alpha=1,fade=t=out:st=10:d=1:alpha=1,setpts=PTS-STARTPTS+20/TB[v2]; \
[3:v]trim=duration=30[over]; \
[over][v0]overlay[over1]; \
[over1][v1]overlay[over2]; \
[over2][v2]overlay=format=yuv420[outv]" \
-vcodec libx264 -map [outv] merge.mp4