From: Christophe Gisquet <christophe.gisquet@gmail.com>
To: FFmpeg development discussions and patches <ffmpeg-devel@ffmpeg.org>
Subject: Re: [FFmpeg-devel] [PATCH 1/7] proresdec2: port and fix for cached reader
Date: Fri, 8 Sep 2023 10:20:20 +0200
Message-ID: <CAPYFPM3UUJG0q0djM3YxbeR9BOsLUVe9PQJRb1fZP9q_KMmPMw@mail.gmail.com> (raw)
In-Reply-To: <20230908081508.510-1-christophe.gisquet@gmail.com>
Le ven. 8 sept. 2023 à 10:15, Christophe Gisquet
<christophe.gisquet@gmail.com> a écrit :
>
> Summary of changes
git send-email --cover-letter apparently didn't let me edit one, so here goes.
This patchset requires my previous one improving the cached bitstream
reader, and serves as its justification. It, basically, moves to using
VLC wherever possible, and in particular when codewords are
sufficiently short/there's some kind of well-behaved laplacian
distribution for codewords that make VLCs efficient.
Total speedup is around 40% here.
--
Christophe
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next prev parent reply other threads:[~2023-09-08 8:20 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-08 8:15 Christophe Gisquet
2023-09-08 8:15 ` [FFmpeg-devel] [PATCH 2/7] proresdec2: store precomputed EC parameters Christophe Gisquet
2023-09-08 8:39 ` Andreas Rheinhardt
2023-09-08 8:15 ` [FFmpeg-devel] [PATCH 3/7] proresdec2: use VLC for level instead of EC switch Christophe Gisquet
2023-09-08 8:44 ` Andreas Rheinhardt
2023-09-08 9:58 ` Andreas Rheinhardt
2023-09-10 15:28 ` Christophe Gisquet
2023-09-10 15:41 ` Andreas Rheinhardt
2023-09-10 15:56 ` Christophe Gisquet
2023-09-08 8:15 ` [FFmpeg-devel] [PATCH 4/7] proresdec2: offset VLCs by 1 to avoid 1 add Christophe Gisquet
2023-09-08 8:15 ` [FFmpeg-devel] [PATCH 5/7] proresdec2: use VLC for small runs and levels Christophe Gisquet
2023-09-08 8:15 ` [FFmpeg-devel] [PATCH 6/7] proresdec2: remove a useless DC codebook entry Christophe Gisquet
2023-09-08 9:08 ` Andreas Rheinhardt
2023-09-08 8:15 ` [FFmpeg-devel] [PATCH 7/7] prores: use VLC LUTs Christophe Gisquet
2023-09-08 9:20 ` Andreas Rheinhardt
2023-09-08 9:58 ` Christophe Gisquet
2023-09-08 8:20 ` Christophe Gisquet [this message]
2023-09-08 8:30 ` [FFmpeg-devel] [PATCH 1/7] proresdec2: port and fix for cached reader Andreas Rheinhardt
2023-09-08 8:34 ` Andreas Rheinhardt
2023-09-11 20:54 ` Christophe Gisquet
2023-09-08 8:36 ` Andreas Rheinhardt
2023-09-08 21:00 ` Michael Niedermayer
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