[FFmpeg-devel] [PATCH] avformat/rtsp: Add -first_rtcp_ntp_time_path option to write the first NTP time to a file.

[Jonathan Viney]

Hi,

The NTP time from the first RTCP packet is currently extracted in
libavformat/rtsp.c and stored in AVFormatContext.start_time_realtime.
However, there is no way to access this value when using ffmpeg from the
commandline.

This patch adds an option when using an RTSP input to write the value to a
file when it is received.

Eg:
ffmpeg -first_rtcp_ntp_time_path out.mp4.ntp -i rtsp://10.0.0.1/ -c copy
out.mp4

Regards,
-Jonathan.
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