From: Michael Niedermayer <michael@niedermayer.cc>
To: ffmpeg-devel@ffmpeg.org
Subject: Re: [FFmpeg-devel] [FFmpeg-cvslog] avcodec/utvideodec: add vlc multi support
Date: Fri, 15 Sep 2023 00:19:08 +0200
Message-ID: <20230914221908.GA2105706@pb2> (raw)
In-Reply-To: <20230906221930.ACB65410B57@natalya.videolan.org>
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On Wed, Sep 06, 2023 at 10:19:29PM +0000, Christophe Gisquet wrote:
> ffmpeg | branch: master | Christophe Gisquet <christophe.gisquet@gmail.com> | Sun Jul 9 12:56:35 2017 +0000| [da888b790af779a7489068c25f9e7ab8ac653d41] | committer: Paul B Mahol
>
> avcodec/utvideodec: add vlc multi support
>
> Faster decoding, by average 50% faster overall.
>
> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=da888b790af779a7489068c25f9e7ab8ac653d41
> ---
>
> libavcodec/utvideo.h | 1 +
> libavcodec/utvideodec.c | 92 ++++++++++++++++++++++++-------------------------
> 2 files changed, 46 insertions(+), 47 deletions(-)
>
> diff --git a/libavcodec/utvideo.h b/libavcodec/utvideo.h
> index 9da9329ff3..e5160aa394 100644
> --- a/libavcodec/utvideo.h
> +++ b/libavcodec/utvideo.h
> @@ -81,6 +81,7 @@ typedef struct UtvideoContext {
> ptrdiff_t slice_stride;
> uint8_t *slice_bits, *slice_buffer[4];
> int slice_bits_size;
> + void *buffer;
>
> const uint8_t *packed_stream[4][256];
> size_t packed_stream_size[4][256];
> diff --git a/libavcodec/utvideodec.c b/libavcodec/utvideodec.c
> index 1f00c58950..ab390be0fa 100644
> --- a/libavcodec/utvideodec.c
> +++ b/libavcodec/utvideodec.c
> @@ -46,7 +46,7 @@ typedef struct HuffEntry {
> } HuffEntry;
>
> static int build_huff(UtvideoContext *c, const uint8_t *src, VLC *vlc,
> - int *fsym, unsigned nb_elems)
> + VLC_MULTI *multi, int *fsym, unsigned nb_elems)
> {
before this patch the whole application finishes within 130ms
after this patch with teh short table
255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,24,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,24,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,23,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,
this times out eventually not exiting the first call
it always got stuck in many calls to add_level()
thx
[...]
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Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
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next parent reply other threads:[~2023-09-14 22:19 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20230906221930.ACB65410B57@natalya.videolan.org>
2023-09-14 22:19 ` Michael Niedermayer [this message]
2023-09-14 23:24 ` Paul B Mahol
2023-09-16 16:40 ` Michael Niedermayer
2023-09-17 8:40 ` Paul B Mahol
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