I'm looking for a way to record a video UDP stream using ffmpeg but in 10mn chunks.
I currently use the following to get 10mn of video (with h264 transcoding).
"ffmpeg -i udp://239.0.77.15:5000 -map 0:0 -map 0:1 -s 640×360 -vcodec libx264 -g 100 -vb 500000 -r 25 -strict experimental -vf yadif -acodec aac -ab 96000 -ac 2 -t 600 -y /media/test.m4 "
My problem is that using command line ffmpeg needs time to resync with the udp stream loosing 2 seconds of video each time. Is it normal ?
Any idea if there is a way to do it in command line or should I tried to use the ffmpeg API ?
Thanks in advance
Best Answer
Ok found it.
Recently ffmpeg add a segmenter, here is the syntax:
-f segment
: tell ffmpeg to use the segmenter-segment_time
: chunk size in secondYou can use autoincrement file name with something like %03d (000,001,002,003...).
Here is my line to transcode a UDP MPEGTS stream, into H264+AAC and save it to file chunk (60 seconds):