[FFmpeg-devel] [PATCH 2/5] avutil/mpegts_audio_desc_metadata: add helper function for AC3 descriptor 0x6a

[Kieran Kunhya]

On Wed, 5 Aug 2020 at 12:54, <lance.lmwang at gmail.com> wrote:

> On Wed, Aug 05, 2020 at 11:14:39AM +0100, Kieran Kunhya wrote:
> > On Tue, 28 Jul 2020 at 16:31, <lance.lmwang at gmail.com> wrote:
> >
> > > From: Limin Wang <lance.lmwang at gmail.com>
> > >
> > > Signed-off-by: Limin Wang <lance.lmwang at gmail.com>
> > > ---
> > >
> >
> > Hi,
> >
> > There is already libdvbpsi or bitstream for these kind of applications,
> it
> > should not go in FFmpeg, nor in public API.
>
> The major goal of the patchset is to support the audio descriptor(AC3)
> pass through
> as some fields are needed by some IRDs.
>
> I have no clues how to use libdvbpsi or bitstream library to achieve that,
> please
> give comments.
>

Why does it need to be public api?
The flaw with this method is that PSI is a separate data stream that
doesn't fit within AVPacket or AVFrame etc, so it's a hack to just add it
to AVPacket.

Kieran