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1–30 of 1565
Welcome to webp-discuss
This is the place to ask everything about WebP, the image compression format.
Main page:
https://developers.google.com/
speed/webp/
Bug tracker:
https://bugs.
chromium.org/p/webp/issues/
list
Discussions are rather technical most of the time, but not always!
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ste.k… via monorail
, …
ygu… via monorail
5
Jan 22
Issue 628 in webp: artefact in reducewebp
Updates: Status: Accepted Comment #4 on issue 628 by ygu...@google.com: artefact in reducewebp https:
unread,
Issue 628 in webp: artefact in reducewebp
Updates: Status: Accepted Comment #4 on issue 628 by ygu...@google.com: artefact in reducewebp https:
Jan 22
Miku AuahDark
,
Yannis Guyon
5
12/25/23
Legal Questions on Reimplementing Single-File WebP Image Decoder
Based on these conversation, I'll do the following for my reimplementation: License it under BSD-
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Legal Questions on Reimplementing Single-File WebP Image Decoder
Based on these conversation, I'll do the following for my reimplementation: License it under BSD-
12/25/23
Julian Lugod
, …
Vincent Rabaud
7
12/22/23
Extracting Animated Webp
The frames are dumped, not recompressed. The size reduction you are seeing is probably because: - you
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Extracting Animated Webp
The frames are dumped, not recompressed. The size reduction you are seeing is probably because: - you
12/22/23
prasannatsmkumar
, …
James Zern
15
12/20/23
WebP support added to OpenCV
Hi, On Wed, Dec 20, 2023 at 9:15 AM Jason Beach <jason....@gmail.com> wrote: I know is this
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WebP support added to OpenCV
Hi, On Wed, Dec 20, 2023 at 9:15 AM Jason Beach <jason....@gmail.com> wrote: I know is this
12/20/23
jz… via monorail
12/18/23
Issue 627 in webp: libwebp 1.4.0
Status: Accepted Owner: jz...@google.com Labels: Type-Task Priority-Medium New issue 627 by jz...@
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Issue 627 in webp: libwebp 1.4.0
Status: Accepted Owner: jz...@google.com Labels: Type-Task Priority-Medium New issue 627 by jz...@
12/18/23
nolan… via monorail
,
jz… via monorail
3
12/18/23
Issue 624 in webp: Webp encoding cli auto rotates certain output photos seemingly randomly.
Updates: Status: Done Comment #2 on issue 624 by jz...@google.com: Webp encoding cli auto rotates
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Issue 624 in webp: Webp encoding cli auto rotates certain output photos seemingly randomly.
Updates: Status: Done Comment #2 on issue 624 by jz...@google.com: Webp encoding cli auto rotates
12/18/23
Ritwik Ghosal
,
Vincent Rabaud
2
12/18/23
BistEntropyRefine and FinalHuffmanCost
Symbols follow statistics that are stored in histogram (called population in the code). There is a
unread,
BistEntropyRefine and FinalHuffmanCost
Symbols follow statistics that are stored in histogram (called population in the code). There is a
12/18/23
peiwei zhang
,
Vincent Rabaud
3
12/11/23
I have some questions about lossless compression for webp.
The transforms, as defined in the specification at https://chromium.googlesource.com/webm/libwebp/+/
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I have some questions about lossless compression for webp.
The transforms, as defined in the specification at https://chromium.googlesource.com/webm/libwebp/+/
12/11/23
peiwei zhang
, …
Vincent Rabaud
5
12/11/23
Hello, I have some question of webp.
1: indeed, the image is transformed to lower its entropy, before entropy coding 2:
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Hello, I have some question of webp.
1: indeed, the image is transformed to lower its entropy, before entropy coding 2:
12/11/23
Etienne Loiseau
, …
David Strom
5
12/6/23
Webp in gmail / transparency issues
This is pretty ridiculous! I go through so much effort to make our emails gmail darkmode compatible -
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Webp in gmail / transparency issues
This is pretty ridiculous! I go through so much effort to make our emails gmail darkmode compatible -
12/6/23
pr...@lucmiteran.com
, …
James Zern
3
12/4/23
On Fri, Nov 24, 2023 at 1:58 AM 'Vincent Rabaud' via WebP Discussion <webp-discuss@
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On Fri, Nov 24, 2023 at 1:58 AM 'Vincent Rabaud' via WebP Discussion <webp-discuss@
12/4/23
lingy… via monorail
, …
jz… via monorail
5
12/4/23
Issue 626 in webp: When using the -quality 100 parameter to process webp images, the output result size is too large and does not meet expectations.
Comment #4 on issue 626 by jz...@google.com: When using the -quality 100 parameter to process webp
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Issue 626 in webp: When using the -quality 100 parameter to process webp images, the output result size is too large and does not meet expectations.
Comment #4 on issue 626 by jz...@google.com: When using the -quality 100 parameter to process webp
12/4/23
FAMASoon ch
, …
Corentin Le Molgat
8
11/27/23
How to contribute this?
Thank you all. I now understand how to format it. I will try it! Thank you so much. 2023年11月27日月曜日 18
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How to contribute this?
Thank you all. I now understand how to format it. I will try it! Thank you so much. 2023年11月27日月曜日 18
11/27/23
jongr… via monorail
, …
jgran… via monorail
5
11/22/23
Issue 622 in webp: BuildHuffmanTable check bounds of offset[] and sorted[] array
Comment #4 on issue 622 by jgran...@gmail.com: BuildHuffmanTable check bounds of offset[] and sorted[
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Issue 622 in webp: BuildHuffmanTable check bounds of offset[] and sorted[] array
Comment #4 on issue 622 by jgran...@gmail.com: BuildHuffmanTable check bounds of offset[] and sorted[
11/22/23
Aum Vaghela
,
James Zern
2
11/20/23
How to add Animated Webp Support to your wordpress setup?
Hi, On Mon, Nov 20, 2023 at 1:34 PM Aum Vaghela <aumvagh...@gmail.com> wrote: Is it
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How to add Animated Webp Support to your wordpress setup?
Hi, On Mon, Nov 20, 2023 at 1:34 PM Aum Vaghela <aumvagh...@gmail.com> wrote: Is it
11/20/23
wjf56… via monorail
, …
James Zern
4
11/15/23
Issue 625 in webp: Can webpjs decode animated webp?
Hi, On Wed, Nov 15, 2023 at 5:26 PM wjf56… via monorail <monorail+noreply+v2.2633858171@chromium.
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Issue 625 in webp: Can webpjs decode animated webp?
Hi, On Wed, Nov 15, 2023 at 5:26 PM wjf56… via monorail <monorail+noreply+v2.2633858171@chromium.
11/15/23
m st
,
James Zern
2
11/7/23
What is the best way to subscribe to new version / or new security issue (security alert)?
Hi, On Tue, Nov 7, 2023 at 12:56 AM m st <mart...@gmail.com> wrote: > > Hi, > >
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What is the best way to subscribe to new version / or new security issue (security alert)?
Hi, On Tue, Nov 7, 2023 at 12:56 AM m st <mart...@gmail.com> wrote: > > Hi, > >
11/7/23
Ritwik Ghosal
,
Vincent Rabaud
2
11/6/23
Inverse transform in Decoder
Hi, ProcessRows is called whenever a row is finished and it is a multiple of NUM_ARGB_CACHE_ROWS,
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Inverse transform in Decoder
Hi, ProcessRows is called whenever a row is finished and it is a multiple of NUM_ARGB_CACHE_ROWS,
11/6/23
Jonny Grant
, …
James Zern
6
10/30/23
Building fuzzer error libwebpmux.a', needed by 'advanced_api_fuzzer'. Stop
On Thu, Oct 26, 2023 at 2:01 PM Jonny Grant <jongr...@gmail.com> wrote: On Friday, 20 October
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Building fuzzer error libwebpmux.a', needed by 'advanced_api_fuzzer'. Stop
On Thu, Oct 26, 2023 at 2:01 PM Jonny Grant <jongr...@gmail.com> wrote: On Friday, 20 October
10/30/23
lipen… via monorail
, …
ygu… via monorail
14
10/24/23
Issue 15 in webp2: Use atomic add if hook_ is null in ProgressWatcher::AdvanceBy symbol
Comment #13 on issue 15 by ygu...@google.com: Use atomic add if hook_ is null in ProgressWatcher::
unread,
Issue 15 in webp2: Use atomic add if hook_ is null in ProgressWatcher::AdvanceBy symbol
Comment #13 on issue 15 by ygu...@google.com: Use atomic add if hook_ is null in ProgressWatcher::
10/24/23
lipen… via monorail
,
ygu… via monorail
4
10/24/23
Issue 18 in webp2: Cannot submit a patch to review in the refs/for/main
Updates: Status: WontFix Comment #3 on issue 18 by ygu...@google.com: Cannot submit a patch to review
unread,
Issue 18 in webp2: Cannot submit a patch to review in the refs/for/main
Updates: Status: WontFix Comment #3 on issue 18 by ygu...@google.com: Cannot submit a patch to review
10/24/23
wangz… via monorail
, …
jz… via monorail
7
10/19/23
Issue 619 in webp: Error when compiling under windows arm64
Comment #5 on issue 619 by jz...@google.com: Error when compiling under windows arm64 https://bugs.
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Issue 619 in webp: Error when compiling under windows arm64
Comment #5 on issue 619 by jz...@google.com: Error when compiling under windows arm64 https://bugs.
10/19/23
Sebastian C.
, …
James Zern
3
10/19/23
Security Issue in Webptools latest
On Thu, Oct 19, 2023 at 2:49 AM 'Vincent Rabaud' via WebP Discussion <webp-discuss@
unread,
Security Issue in Webptools latest
On Thu, Oct 19, 2023 at 2:49 AM 'Vincent Rabaud' via WebP Discussion <webp-discuss@
10/19/23
jongr… via monorail
, …
j… via monorail
9
10/19/23
Issue 621 in webp: BuildHuffmanTable could replace assert with if() for safety
Comment #8 on issue 621 by j...@jguk.org: BuildHuffmanTable could replace assert with if() for safety
unread,
Issue 621 in webp: BuildHuffmanTable could replace assert with if() for safety
Comment #8 on issue 621 by j...@jguk.org: BuildHuffmanTable could replace assert with if() for safety
10/19/23
James Zern
10/11/23
Re: How to get moderator permission to delete conversation
Hi, On Sun, Oct 8, 2023 at 11:40 AM Vanessa Cristina <vc65...@gmail.com> wrote: How to get the
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Re: How to get moderator permission to delete conversation
Hi, On Sun, Oct 8, 2023 at 11:40 AM Vanessa Cristina <vc65...@gmail.com> wrote: How to get the
10/11/23
jksty… via monorail
, …
jz… via monorail
7
10/10/23
Issue 623 in webp: Error when compiling under m1 mac
Comment #6 on issue 623 by jz...@google.com: Error when compiling under m1 mac https://bugs.chromium.
unread,
Issue 623 in webp: Error when compiling under m1 mac
Comment #6 on issue 623 by jz...@google.com: Error when compiling under m1 mac https://bugs.chromium.
10/10/23
Victor Loh
,
James Zern
2
10/6/23
Streaming webp encoder?
Hi Victor, On Mon, Sep 25, 2023 at 12:48 AM Victor Loh <foz...@gmail.com> wrote: I was looking
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Streaming webp encoder?
Hi Victor, On Mon, Sep 25, 2023 at 12:48 AM Victor Loh <foz...@gmail.com> wrote: I was looking
10/6/23
Sofia Young
,
James Zern
2
10/6/23
LibWebP Vulnerability
Hi, On Fri, Oct 6, 2023 at 11:23 AM Sofia Young <sofia...@infotrustllc.com> wrote: Hello, my
unread,
LibWebP Vulnerability
Hi, On Fri, Oct 6, 2023 at 11:23 AM Sofia Young <sofia...@infotrustllc.com> wrote: Hello, my
10/6/23
James Zern
,
keng deng
4
10/6/23
[ANN] libwebp 1.3.2
Hi, On Fri, Oct 6, 2023 at 3:41 AM keng deng <deng...@gmail.com> wrote: Hi, https://blog.
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[ANN] libwebp 1.3.2
Hi, On Fri, Oct 6, 2023 at 3:41 AM keng deng <deng...@gmail.com> wrote: Hi, https://blog.
10/6/23
Eric Melse
,
James Zern
2
10/6/23
An animated AVIF file will not run like a GIF would do.
Hi, This group is focused on WebP. Would you mind posting this to https://github.com/AOMediaCodec/
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An animated AVIF file will not run like a GIF would do.
Hi, This group is focused on WebP. Would you mind posting this to https://github.com/AOMediaCodec/
10/6/23