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WebP Discussion
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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
1月22日
Issue 628 in webp: artefact in reducewebp
Updates: Status: Accepted Comment #4 on issue 628 by ygu...@google.com: artefact in reducewebp https:
未読、
Issue 628 in webp: artefact in reducewebp
Updates: Status: Accepted Comment #4 on issue 628 by ygu...@google.com: artefact in reducewebp https:
1月22日
Miku AuahDark
,
Yannis Guyon
5
2023/12/25
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-
未読、
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-
2023/12/25
Julian Lugod
, …
Vincent Rabaud
7
2023/12/22
Extracting Animated Webp
The frames are dumped, not recompressed. The size reduction you are seeing is probably because: - you
未読、
Extracting Animated Webp
The frames are dumped, not recompressed. The size reduction you are seeing is probably because: - you
2023/12/22
prasannatsmkumar
, …
James Zern
15
2023/12/20
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
未読、
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
2023/12/20
jz… via monorail
2023/12/18
Issue 627 in webp: libwebp 1.4.0
Status: Accepted Owner: jz...@google.com Labels: Type-Task Priority-Medium New issue 627 by jz...@
未読、
Issue 627 in webp: libwebp 1.4.0
Status: Accepted Owner: jz...@google.com Labels: Type-Task Priority-Medium New issue 627 by jz...@
2023/12/18
nolan… via monorail
,
jz… via monorail
3
2023/12/18
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
未読、
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
2023/12/18
Ritwik Ghosal
,
Vincent Rabaud
2
2023/12/18
BistEntropyRefine and FinalHuffmanCost
Symbols follow statistics that are stored in histogram (called population in the code). There is a
未読、
BistEntropyRefine and FinalHuffmanCost
Symbols follow statistics that are stored in histogram (called population in the code). There is a
2023/12/18
peiwei zhang
,
Vincent Rabaud
3
2023/12/11
I have some questions about lossless compression for webp.
The transforms, as defined in the specification at https://chromium.googlesource.com/webm/libwebp/+/
未読、
I have some questions about lossless compression for webp.
The transforms, as defined in the specification at https://chromium.googlesource.com/webm/libwebp/+/
2023/12/11
peiwei zhang
, …
Vincent Rabaud
5
2023/12/11
Hello, I have some question of webp.
1: indeed, the image is transformed to lower its entropy, before entropy coding 2:
未読、
Hello, I have some question of webp.
1: indeed, the image is transformed to lower its entropy, before entropy coding 2:
2023/12/11
Etienne Loiseau
, …
David Strom
5
2023/12/06
Webp in gmail / transparency issues
This is pretty ridiculous! I go through so much effort to make our emails gmail darkmode compatible -
未読、
Webp in gmail / transparency issues
This is pretty ridiculous! I go through so much effort to make our emails gmail darkmode compatible -
2023/12/06
pr...@lucmiteran.com
, …
James Zern
3
2023/12/04
On Fri, Nov 24, 2023 at 1:58 AM 'Vincent Rabaud' via WebP Discussion <webp-discuss@
未読、
On Fri, Nov 24, 2023 at 1:58 AM 'Vincent Rabaud' via WebP Discussion <webp-discuss@
2023/12/04
lingy… via monorail
, …
jz… via monorail
5
2023/12/04
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
未読、
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
2023/12/04
FAMASoon ch
, …
Corentin Le Molgat
8
2023/11/27
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
未読、
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
2023/11/27
jongr… via monorail
, …
jgran… via monorail
5
2023/11/22
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[
未読、
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[
2023/11/22
Aum Vaghela
,
James Zern
2
2023/11/20
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
未読、
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
2023/11/20
wjf56… via monorail
, …
James Zern
4
2023/11/15
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.
未読、
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.
2023/11/15
m st
,
James Zern
2
2023/11/07
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, > >
未読、
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, > >
2023/11/07
Ritwik Ghosal
,
Vincent Rabaud
2
2023/11/06
Inverse transform in Decoder
Hi, ProcessRows is called whenever a row is finished and it is a multiple of NUM_ARGB_CACHE_ROWS,
未読、
Inverse transform in Decoder
Hi, ProcessRows is called whenever a row is finished and it is a multiple of NUM_ARGB_CACHE_ROWS,
2023/11/06
Jonny Grant
, …
James Zern
6
2023/10/30
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
未読、
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
2023/10/30
lipen… via monorail
, …
ygu… via monorail
14
2023/10/24
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::
未読、
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::
2023/10/24
lipen… via monorail
,
ygu… via monorail
4
2023/10/24
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
未読、
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
2023/10/24
wangz… via monorail
, …
jz… via monorail
7
2023/10/19
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.
未読、
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.
2023/10/19
Sebastian C.
, …
James Zern
3
2023/10/19
Security Issue in Webptools latest
On Thu, Oct 19, 2023 at 2:49 AM 'Vincent Rabaud' via WebP Discussion <webp-discuss@
未読、
Security Issue in Webptools latest
On Thu, Oct 19, 2023 at 2:49 AM 'Vincent Rabaud' via WebP Discussion <webp-discuss@
2023/10/19
jongr… via monorail
, …
j… via monorail
9
2023/10/19
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
未読、
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
2023/10/19
James Zern
2023/10/11
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
未読、
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
2023/10/11
jksty… via monorail
, …
jz… via monorail
7
2023/10/10
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.
未読、
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.
2023/10/10
Victor Loh
,
James Zern
2
2023/10/06
Streaming webp encoder?
Hi Victor, On Mon, Sep 25, 2023 at 12:48 AM Victor Loh <foz...@gmail.com> wrote: I was looking
未読、
Streaming webp encoder?
Hi Victor, On Mon, Sep 25, 2023 at 12:48 AM Victor Loh <foz...@gmail.com> wrote: I was looking
2023/10/06
Sofia Young
,
James Zern
2
2023/10/06
LibWebP Vulnerability
Hi, On Fri, Oct 6, 2023 at 11:23 AM Sofia Young <sofia...@infotrustllc.com> wrote: Hello, my
未読、
LibWebP Vulnerability
Hi, On Fri, Oct 6, 2023 at 11:23 AM Sofia Young <sofia...@infotrustllc.com> wrote: Hello, my
2023/10/06
James Zern
,
keng deng
4
2023/10/06
[ANN] libwebp 1.3.2
Hi, On Fri, Oct 6, 2023 at 3:41 AM keng deng <deng...@gmail.com> wrote: Hi, https://blog.
未読、
[ANN] libwebp 1.3.2
Hi, On Fri, Oct 6, 2023 at 3:41 AM keng deng <deng...@gmail.com> wrote: Hi, https://blog.
2023/10/06
Eric Melse
,
James Zern
2
2023/10/06
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/
未読、
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/
2023/10/06