I have ffmpeg streaming video cameras to HLS. Intention is to keep a long history of video footage to "scroll back" should a security incident occur.
It's working so long as the ffmpeg encoding process is never interrupted, but, anytime anything happens to the ffmpeg encoder, all the history gets lost in the browser, even when the video files are verified to be present. In the below incantation: $START is the number of the last segment found, +1. $CAMERA is the name of the camera. EG: "SouthView" The idea is that if the encoding script is restarted (EG: after a system reboot) that it should continue encoding where the previous instance of the script left off. The new ffmpeg instance does start creating the next .ts files starting at $START and doesn't overwrite the previous ones. HOWEVER, I'm aware of at least two issues: 1) The .m3u8 file generated by the new instance doesn't refer to the previous .ts files, so access to them is lost, and 2) ffmpeg no longer deletes the older .ts files as they age out. ffmpeg \ -i "rtsp://$IP//user=admin&password=&channel=1&stream=1" \ -vf scale=1280x720 \ -c:v libx264 \ -crf 21 -preset slow \ -an \ -framerate 10 \ -f hls \ -truncate 0 \ -start_number $START \ -segment_time 60 \ -hls_list_size 1440 \ -hls_flags delete_segments \ -hls_delete_threshold 1 \ /ngpool/video/www/$CAMERA.stream.m3u8; I've verified that, if I take the previous .m3u8 file and merge it with the new one, that the previous history is accessible from the browser - so the problem is solely that the new ffmpeg instance is writing a .m3u8 file that doesn't refer to the previous .ts files. Is there an option to tell ffmpeg to continue updating the .m3u8 file and consider the already existing .ts files so that access to the video camera history from the browser is preserved? Thanks _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".