[FFmpeg-devel] [PATCH] Extracting NTP timestamp from RTCP

Fred Rothganger frothga at sandia.gov
Thu Oct 31 01:32:15 CET 2013

On 10/30/2013 10:19 AM, Michael Niedermayer wrote:
> rtpctx->st can be NULL also probably should have a note in APIChanges 
> micro or minor version bump and docs in avformat.h

Here's another attempt.

It seems that start_time_realtime has almost no meaning when set by the 
user for encoding. rtpenc.c assumes that first_rtcp_ntp_time is always 
relative to the host machine's clock, so the only real option the user 
has is to accept the default.

I'm new to all this, so I'm probably missing something. My preferred 
semantics would be that setting start_time_realtime for encoding would 
cause the whole stream to appear to be generated at that point in time, 
regardless of when it is (past, present, future).

None of the above comments directly impacts the offered patch.

-- Fred
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