Ffmpeg copy keyframe2/18/2023 ![]() framepts true: use the frame index for image names, otherwise, the index starts from 1 and increments 1 each time. framerate 60 -videosize 1920x1080 -i /dev/video0 -c:v copy -c:a aac -f flv. To extract I-frames, we can run the following command: ffmpeg -skipframe nokey -i test.mp4 -vsync vfr -framepts true out-02d.jpeg. We recommend that you use a stream bitrate of 4500 Kbps. Adjusting keyframe rate ffmpeg/v4l2 Logitech C920 to YouTube Live. ![]() ![]() The stream's current bitrate (6653.00 Kbps) is higher than the recommended bitrate. Here's an example of the command I'm running: ffmpeg -i input.mpg -acodec copy -vcodec copy -timecodeframestart 200 -vframes 210 -n ouput.mpg I've moved the timecodeframestart option before and after the other options with no change in results. ![]() We recommend that you use an audio stream bitrate of 128 Kbps. I have been trying to extract keyframes from video using ffmpeg 0.11.1. The resulting video always starts at the beginning of the original video. The audio stream's current bitrate (2.00 Kbps) is lower than the recommended bitrate. Note that ingestion errors can cause incorrect GOP (group of pictures) sizes. The current keyframe frequency is 6.0 seconds. the above code box and select Copy from the dropdown menu, then paste it where you want it to appear. Currently, keyframes are not being sent often enough, which will cause buffering. Also covers how to export video using ffmpeg. Extract only keyframes (I-frames) from video to images with console ffmpeg Raw ffmpeg-extract-keyframes.sh ffmpeg -ss < starttime > -i video.mp4 -t < duration > -q:v 2 -vf select 'eq (picttype\,PICTTYPEI)' -vsync 0 frame03d.jpg Sign up for free to join this conversation on GitHub."Please use a keyframe frequency of four seconds or less. I have quite good performance for 2-3 minutes, and then I get a warning message on Youtube that my Key Frame interval is currently at 6 seconds, and needs to be at 4 seconds: Code: Select all sudo raspivid -o -t 0 -vf -hf -fps 10 -b 6000000 | sudo ffmpeg/./ffmpeg -f lavfi -re -i anullsrc -f h264 -thread_queue_size 1024 -framerate 10 -probesize 100 -i -vcodec copy -acodec aac -g 20 -f flv rtmp://
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