[Libav-user] H264 SEI Information from libavcodec/libavformat

[Brad Hards]

On Friday, 25 June 2021 6:00:24 PM AEST Alan Johnson wrote:
> Is there anyway to add a h264 NAL (SEI Timecode) unit to an existing 
stream
> without access libavcodec source (i.e. only linking against the DLL)?
I don't think so. 

AFAICT, the H.264 encoders don't support SEI writing in any released 
version. It should work in nvenc as of the next release. Others are a work 
in progress.

Brad


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