[Ffmpeg-devel] Mpeg2-ts encoder uses fixed PES payload size

[Måns Rullgård]

Michael Niedermayer <michaelni at gmx.at> writes:

> Hi
>
> On Sat, Mar 03, 2007 at 07:06:39PM +0100, Luca Abeni wrote:
>> Hi all,
>> On Sat, 2007-03-03 at 18:56 +0100, Luca Abeni wrote:
>> [...]
>> > Ok, here is the patch. 
>> [...]
>> Sorry, I sent a wrong patch. Here is the correct one.
>
> i would prefer if the sdt placement frequency could be selected by the
> user instead of haveing a dummy muxer which doesnt place SDTs
> but mans is maintainer not me so its his decission ...
>
> if the placement becomes user selectable then we also must decide
> about  the units of the new parameter (sdt per time vs. sdt per
> bits) without looking at the mpeg spec i would guess per time is
> more correct

With a quick glance at the DVB specs, all I find about SI repetition
rates is a minimum interval of 25ms between repetitions.

BTW, why do we generate SDT at all?  It is a DVB extension, and would
only be useful to someone creating a transport stream for broadcast,
for which purpose the current lavf ts muxer is useless.  A proper DVB
transport stream also needs the other DVB SI tables, which we do not
create.

-- 
M?ns Rullg?rd
mans at mansr.com