For video streams, wait for a video keyframe before rotating the file (record_interval).
For video streams, wait for a video keyframe before rotating the file (record_interval).

Fixes https://github.com/sergey-dryabzhinsky/nginx-rtmp-module/issues/335

sergey-dryabzhinsky/nginx-rtmp-module,sergey-dryabzhinsky/nginx-rtmp-module,sergey-dryabzhinsky/nginx-rtmp-module