[FFmpeg-devel] [PATCH] ffprobe/eac3/mlp/dca: add detection of spatial audio extensions

[Marth64]

Ack'd. Nice catch. Thank you!

On Thu, Feb 9, 2023 at 4:35 PM Michael Niedermayer <michael at niedermayer.cc>
wrote:

> On Wed, Feb 08, 2023 at 10:41:00PM -0600, Marth64 wrote:
> > Signed-off-by: Marth64 <marth64 at proxyid.net>
> > ---
> > Adds detection of spatial/object-based audio extensions in E-AC-3,
> > TrueHD, and DCA XLL (DTS). This includes Atmos, DTS:X, and IMAX formats.
> > Please let me know what I could improve, I'm learning still.
> > Thank you.
> [...]
> > @@ -1054,10 +1055,23 @@ static int parse_frame(DCAXllDecoder *s, const
> uint8_t *data, int size, DCAExssA
> >          return ret;
> >      if ((ret = parse_band_data(s)) < 0)
> >          return ret;
> > +
> > +    extradata_peek_pos = (get_bits_count(&s->gb) + 31) & ~31;
> > +    if (s->frame_size * 8 > extradata_peek_pos) {
> > +        unsigned int extradata_syncword = show_bits(&s->gb, 32);
>
> show_bits_long()
>
>
> [..]
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> The misfortune of the wise is better than the prosperity of the fool.
> -- Epicurus
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