[FFmpeg-user] AES Enc with segmenter

Dennis Mungai dmngaie at gmail.com
Fri Nov 30 22:27:40 EET 2018

Go through the output of:

ffmpeg -h muxer=hls

What build of FFmpeg are you using? Note that on this mailing list, only
git head is supported.


On Fri, 30 Nov 2018 at 22:19, bra vo <br4v0n3t at gmail.com> wrote:

> I would like to segment a live mpegts udp stream into hls and there are two
> constraints:
> 1) Subtitles must be copied (dvbsub) to output; (If it can be converted to
> webvtt it would be awesome)
> 2) The segments must be encrypted with AES128 and the playlist should
> contains the URI to the key.
> Well, the issue is that I can't achieve both at the same time. If I use the
> ffmpeg hls muxer, it encrypt the chunks with AES but do not copy subtitles
> to the output and throws an error: [webvtt @ 0x561100fa5700] Exactly one
> WebVTT stream is needed.
> Ok, then let's give the generic segmenter muxer a try. Good, it can copy
> the subtitles to the hls output. Question is, how can I  encrypt the
> segments on the fly and properly add te key URI to the manifest using this
> generic segmenter? (Remember it's a live content)
> Thanks!
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