Re: [FFmpeg-devel] [PATCH v2] avformat/mpegts: set data broadcast streams as such

["Jan Ekström" <jeebjp@gmail.com>]

On Mon, Apr 11, 2022 at 1:50 PM Jan Ekström <jeebjp@gmail.com> wrote:
>
> From: Jan Ekström <jan.ekstrom@24i.com>
>
> Additionally, they should not be probed, as this is essentially
> various types of binary data.
>
> Signed-off-by: Jan Ekström <jan.ekstrom@24i.com>
> ---

Ping.

Basically this checks if we have an unknown stream with a private
stream type still at the end of the per-stream loop in PMT parsing,
and then cancels the stop of parsing that usually occurs as a PMT is
hit. Instead the logic will continue parsing further. When an SDT is
then found and a PMT for that program has already been received, it
will then stop header reading at that point.

I do agree that DVB/ETSI deciding to put this descriptor in the SDT is
unfortunate, but actually setting the stream to a non-unknown codec
actually leads to reduced probing time, as unknown streams get probed
within the stream, and such data streams are often of very low data
rate (and generally contain no A/V/S data which could be probed).

Jan
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