[FFmpeg-user] A question on NVENC's A53CC support

[Carl Eugen Hoyos]

2018-08-17 14:01 GMT+02:00, Dennis Mungai <dmngaie at gmail.com>:
> According to this commit
> https://git.videolan.org/?p=ffmpeg.git;a=commit;h=5a88e8c3
> , A53CC support was added to the NVENC encoder.
>
> For lavc, its' also enabled by default:
> https://ffmpeg.org/pipermail/ffmpeg-devel/2016-September/199200.html

This commit enabled a53 by default for x264 and qsv, it is also
enabled by default for videotoolbox.

> Is it safe to assume that closed captioned support is enabled by
> default in the encoder, or is it necessary to pass the -a53cc flag
> to explicitly enable the feature?

(Did you try to pass the flag to the encoder?)

You cannot disable a53 for nvenc afaict.

Carl Eugen