How to crossfade between 2 videos | Smooth fade in and out transition between 2 video files
Today, we show how to crossfade between videos. Crossfade is a smooth transition effect between videos where one video fades out and the other one fades in without a cut being visible. Parameters can of course be tuned to suit your individual needs.
EXAMPLES
ꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷ
❶ Crossfade between 2 videos, with:
Crossfade effect after 9 seconds
Crossfade duration 1 second
Small crossfading to black perceivable
Synchronous start video 1 and video 2
Sound of video 1 kept
→ ffmpeg -i input01.mp4 -i input02.mp4 -f lavfi -i color=black:s=1280x720 -filter_complex "[0:v]format=pix_fmts=yuva420p,fade=t=out:st=9:d=1:alpha=1[iv0];[1:v]format=pix_fmts=yuva420p,fade=t=in:st=9:d=1:alpha=1[iv1];[2:v]trim=duration=15[bg];[bg][iv0]overlay[bg1];[bg1][iv1]overlay[outv]" -map [outv] -map 0:a output01.mp4
with:
-i input01.mp4 -i input02.mp4 = Reads files «input01.mp4» and «input02.mp4» …
-f lavfi -i color=black:s=1280x720 = … and creates a black 1280x720 video…
-filter_complex = Starts a series of complex filters
[0:v]format=pix_fmts=yuva420p = … converts the input01.mp4 video ([0:v]) to format yuva420p …
fade=t=out:st=9:d=1 = … and creates a 1 second fade OUT effect (to black) after 9 seconds…
alpha=1 = … fading only the alpha channel (i.e. the transparency)…
[iv0] = … calling the resulting video [iv0]…
[1:v]format=pix_fmts=yuva420p = Converts now the input02.mp4 video ([1:v]) to format yuva420p …
fade=t=in:st=9:d=1:alpha=1 = … and creates a 1 second fade IN effect (to black) after 9 seconds, fading only the alpha channel (i.e. the transparency)…
[iv1] = … calling the resulting video [iv1]…
[2:v]trim=duration=15[bg] = Focuses now on the third input (the 1280x720 black video) and cuts it to 15 seconds calling the resulting video [bg]…
[bg][iv0]overlay[bg1] = … overlays now [iv0] on top of [bg] and calls the result [bg1]…
[bg1][iv1]overlay[outv] = … and overlays [iv1] on top of [bg1] and calls the result [outv]…
-map [outv] = Stitches back together the [outv] video result…
-map 0:a = … and the soundtrack of input video “input01.mp4” (0:a)…
output01.mp4 = … and outputs the result to file «output01.mp4»
❷ Crossfade between 2 videos
Crossfade effect after 9 seconds
Crossfade duration 1 second
No small crossfading to black perceivable
Delayed start video 2
→ ffmpeg -i input01.mp4 -i input02.mp4 -f lavfi -i color=black:s=1280x720 -filter_complex "[0:v]format=pix_fmts=yuva420p,fade=t=out:st=9.5:d=1:alpha=1,setpts=PTS-STARTPTS[iv0];[1:v]format=pix_fmts=yuva420p,fade=t=in:st=0:d=1:alpha=1,setpts=PTS-STARTPTS+9/TB[iv1];[2:v]trim=duration=15[bg];[bg][iv0]overlay[bg1];[bg1][iv1]overlay[outv]" -map [outv] -map 1:a output02.mp4
with:
-i input01.mp4 -i input02.mp4 = Reads files «input01.mp4»
and «input02.mp4» …
-f lavfi -i color=black:s=1280x720 = … and creates a black 1280x720 video…
-filter_complex = Starts a series of complex video filters...
[0:v]format=pix_fmts=yuva420p = … converts the input01.mp4 video ([0:v]) to format yuva420p …
fade=t=out:st=9.5:d=1:alpha=1 = … and creates a 1 second fade OUT effect (to black) after 9.5s fading only the alpha channel…
setpts=PTS-STARTPTS = … considering the start of the video (STARTPTS) as the 0 for timestamping…
[iv0] = … calling the resulting video [iv0]…
[1:v]format=pix_fmts=yuva420p = Converts now the input02.mp4 video ([1:v]) to format yuva420p …
fade=t=in:st=0:d=1:alpha=1 = … and creates a 1 second fade IN effect (to black) after 0 second, fading only the alpha channel (i.e. the transparency)…
setpts=PTS-STARTPTS+9/TB = … setting up the video to start after 9 seconds…
[iv1] = … calling the resulting video [iv1]…
[2:v]trim=duration=15[bg] = Focuses now on the third input (the 1280x720 black video) and cuts it to 15 seconds calling the resulting video [bg]…
[bg][iv0]overlay[bg1] = … overlays now [iv0] on top of [bg] and calls the result [bg1]…
[bg1][iv1]overlay[outv] = … and overlays [iv1] on top of [bg1] and calls the result [outv]…
-map [outv] = Stitches back together the [outv] video result…
-map 1:a = … and the soundtrack of input video “input02.mp4” (1:a)…
output02.mp4 = … and outputs the result to file «output02.mp4»
ꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷ
→ Catch up with the FFMPEG guy Channel
• ALL THE VIDEOS FROM THE CHANNEL
ꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷ
MUSIC
ꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷ
→ Bright Eyed Blues - Unicorn Heads
ꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷ
An FFMPEG question?
Ask the FFMPEG guy
ꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷꟷ
Watch video How to crossfade between 2 videos | Smooth fade in and out transition between 2 video files online without registration, duration hours minute second in high quality. This video was added by user The FFMPEG guy 14 October 2021, don't forget to share it with your friends and acquaintances, it has been viewed on our site 1,229 once and liked it 27 people.