[FFmpeg-devel] [PATCH] g722: Add a trellis encoder
Fri Dec 3 20:03:52 CET 2010
On Wed, Dec 01, 2010 at 02:03:17PM +0200, Martin Storsj? wrote:
> On Wed, 1 Dec 2010, Martin Storsj? wrote:
> > Now that most (all?) issues with the normal adpcm trellis encoder have
> > been sorted out, here's an updated version of the g722 trellis encoder,
> > with all the changes from the adpcm trellis encoder incorporated.
> As Tomas H?rdin suggested on irc, the lower and upper subbands could be
> optimized totally independently from each other with a separate trellis. I
i thought i had suggested that ages ago alraedy ...
> implemented this, making it run faster and giving better output.
> (Previously, I ran one trellis, where each combination of lower and upper
> subband codewords were tested as a whole, but still by summing their ssds.
> Since they don't affect each other, they can be optimized separately.)
> Thus, updated patch attached.
> // Martin
> g722.c | 198 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 198 insertions(+)
> 5b8d7fe6a920fa9d2b3686802f2d9ebd1edb7be2 0001-g722-Add-a-trellis-encoder.patch
> From 19b65df2f43c427beb64cb57095e31ed8ca58f1c Mon Sep 17 00:00:00 2001
> From: Martin Storsjo <martin at martin.st>
> Date: Fri, 10 Sep 2010 15:55:52 +0300
> Subject: [PATCH] g722: Add a trellis encoder
> It is to a large extent built similarly to the normal adpcm trellis
> libavcodec/g722.c | 198 +++++++++++++++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 198 insertions(+), 0 deletions(-)
we need a maintainer for g722.c
if you volunteer then i think i dont have to review this :)
Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
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