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Circular Overlay of Video on Another Video using FFMPEG in Android


Circular Overlay of Video on Another Video using FFMPEG in Android

By : Beau Vrolyk
Date : November 21 2020, 07:01 PM
I wish did fix the issue. This is a bug caused by avfilter: slice processing for geq. You can:
Add -filter_complex_threads 1 (or -filter_threads 1 for any other readers using -vf instead of -filter_complex) to your command. Or use the previous commit: make distclean; git checkout 206b25f9f45a7a0e408338f9f6ab022ff2efb196 && ./configure --enable-gpl && make ffmpeg
code :


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Overlay streaming video on another video with ffmpeg

Overlay streaming video on another video with ffmpeg


By : Kofi N.
Date : March 29 2020, 07:55 AM
will help you I am running a robot that uses fmpeg to send straming video to letsrobot.tv You can see my bot on the website called patton II. I want to overlay a video HUD on the stream. , You already have one input, which is the webcam video:
code :
-f v4l2 -framerate 25 -video_size 640x480 -i /dev/video%s
-i /path/to/hud/stream
-filter_complex "[0:v][1:v]overlay[out]"
/usr/local/bin/ffmpeg -f v4l2 -framerate 25 -video_size 640x480 -i /dev/video%s \
-i /path/to/hud/stream \
-filter_complex "[0:v][1:v]overlay[out]" -map "[out]" \
-f mpegts -codec:v mpeg1video -s 640x480 -b:v %dk -bf 0 \
-muxdelay 0.001 %s http://%s:%s/hello/640/480/
Overlay a video on another video at specific time with FFmpeg

Overlay a video on another video at specific time with FFmpeg


By : anonymous
Date : March 29 2020, 07:55 AM
like below fixes the issue I am trying to overlay a video with another video. I followed the original command OP posted here. And it works, but it overlays the video from time 0: , Change PTS- to PTS+. Remove shortest=1. Add eof_action=pass:
code :
ffmpeg -i 720480.mp4 -i sdbug.mov -filter_complex "[1:v]setpts=PTS+10/TB[a];[0:v][a]overlay=enable=gte(t\,10):eof_action=pass,format=yuv420p[out]" -map "[out]" -map 0:a? -c:v libx264 -crf 18 -c:a copy new.mp4
FFMPEG Overlay 1080X1920 video over 1280X720 video at a particular vertical position

FFMPEG Overlay 1080X1920 video over 1280X720 video at a particular vertical position


By : user2749660
Date : March 29 2020, 07:55 AM
seems to work fine You have to pad the rescaled 720p video with the correct margins and then carry out the overlay.
ffmpeg -i 1080x1920.mov -i 1280x720.MOV -filter_complex "[1]scale=1080:-1,pad=1080:1920:0:1920-500-607[1v];[1v][0]overlay=0:0" -c:v libx264 -profile:v high444 -pix_fmt yuv420p -level 3.1 -y final.mp4
Problems in making Video from Lottie JSON File and Overlay it with original video using FFMPEG

Problems in making Video from Lottie JSON File and Overlay it with original video using FFMPEG


By : Nepherael
Date : March 29 2020, 07:55 AM
should help you out Here is your solution, Instead of using FFMPEG library, i used OpenGL for overlaying Lottie frames directly to the original video. So, this takes only one step while the use of FFMPEG takes two steps of processing.
So, this saves a lot of time of video processing. For instance, video of 30 seconds takes only 35-40 seconds for processing using OpenGL. I have used this link for reference, if anyone wants solution for this kind of situation,
Overlay on full video length when making video from images sequence using ffmpeg

Overlay on full video length when making video from images sequence using ffmpeg


By : user3341191
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Different resolution images causing the issue. Issue resolved after resizing images to same resolution.
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