[FFmpeg-user] unable to play recorded HEVC/H.265 video, possible bug in ffmpeg muxer or demuxer?

[Anton Sviridenko]

As no one has answered my post in libav-user list

http://ffmpeg.org/pipermail/libav-user/2017-November/010762.html

trying to get some help here.

Short description:
There is an IP camera from Dahua that can stream video encoded by HEVC.
I am able to view RTSP live stream using ffplay,
but when I record this video I am unable to playback it,

$ ffmpeg -i rtsp://admin:admin@192.168.86.113:554/cam/realmonitor?channel=1\&subtype=1
-c copy -vbsf hevc_mp4toannexb ~/temp/testhevc.mkv

ffplay and all other ffmpeg-based players print same errors:

hevc: No start code is found.
hevc: Error splitting the input into NAL units.

All important info (ffmpeg version and output, sample video) is
available if you follow link above