[FFmpeg-user] PCR not copied

[Garrett Stair]

When copying an H.264 encoded MPEG2-TS file using command:

ffmpeg -rtsp_transport tcp -i <rtsp://ip/input.ts> -map 0 -f mpegts -c:v copy <output.ts>

the resulting output file has a PCR rate much greater than every 100-ms.

If the file is re-encoded, the PCR is set correctly. I do not want to re-encode the video, just copy it. If I am not specifying a change, then why does ffmpeg make a change?