[FFmpeg-devel] [PATCH 2/2] avcodec/vorbisenc: Implement transient detection in Vorbis encoder

[Michael Niedermayer]

On Sun, Mar 26, 2017 at 08:58:33PM -0600, Tyler Jones wrote:
> The existing AAC psychoacoustic system is used to detect transients within the
> vorbis encoder. This is useful, in general, as an initial step in later utilizing
> a complex psychoacoustic model for the vorbis encoder, but more specifically
> allows the cacellation of pre-echo effects that frequently occur with this
> codec.
> 
> Signed-off-by: Tyler Jones <tdjones879 at gmail.com>
> ---
>  libavcodec/psymodel.c  |  1 +
>  libavcodec/vorbisenc.c | 60 ++++++++++++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 61 insertions(+)

This changes
make fate

stddev: 6521.39 PSNR: 20.04 MAXDIFF:55190 bytes:  1675800/  1675264
stddev: |6521.39 - 296| >= 30
Test vorbis-encode failed. Look at tests/data/fate/vorbis-encode.err for details.
make: *** [fate-vorbis-encode] Error 1

If the change is intended the reference must be updated

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

When the tyrant has disposed of foreign enemies by conquest or treaty, and
there is nothing more to fear from them, then he is always stirring up
some war or other, in order that the people may require a leader. -- Plato
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 181 bytes
Desc: Digital signature
URL: <http://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20170327/5d34fff3/attachment.sig>