Thanks to all people involved,
I just read about this new video format in the making/released [0].
Of course, I am not asking to support this, as this seems like the future, and not the present, but being a complete noob on video formats and codecs, I would like to know if someone more knolegeble has some insight about this and if it is something to keep in mind/someone has tested it and has experiences to share/client and vendor support?
-- Jaime
[0] url: https://blog.mozilla.org/blog/2018/07/11/royalty-free-web-video-codecs/
On Fri, Jun 29, 2018 at 6:46 PM, Brion Vibber bvibber@wikimedia.org wrote:
Awesome sauce. Thanks Moritz!
-- brion
On Fri, Jun 29, 2018 at 7:39 AM Moritz Muehlenhoff < mmuhlenhoff@wikimedia.org> wrote:
Hi all,
On Thu, Jun 28, 2018 at 01:54:18PM -0700, Brion Vibber wrote:
Current state on this:
- still hoping to deploy the libvpx+ffmpeg backport first so we start
with
best performance; Moritz made a start on libvpx but we still have to resolve ffmpeg (possibly by patching 3.2 instead of updating all the
way
to
3.4)
I've completed this today. We now have a separate repository component for stretch-wikimedia (named component/vp9) which includes ffmpeg 3.2.10 (thus allowing us to follow the ffmpeg security updates released in
Debian
with a local rebuild) with backported row-mt support and linked against libvpx 1.7.0.
I tested re-encoding
Pitts_Todeswand_2017_-_Jagath_Perera.webm
(which is a nice fast-paced test file) from VP8 to VP9, which results in a size reduction from 48M to 31M.
When using eight CPU cores on one of our video scaler servers, enabling row-mt gives a significant performance boost; encoding time went down from 5:31 mins to 3:36 mins.
All the details can be found at https://phabricator.wikimedia.org/T190333#4324995
Cheers, Moritz
On Mon, Jul 23, 2018, 5:14 AM Jaime Crespo jynusx@gmail.com wrote:
Thanks to all people involved,
I just read about this new video format in the making/released [0].
Of course, I am not asking to support this, as this seems like the future, and not the present, but being a complete noob on video formats and codecs, I would like to know if someone more knolegeble has some insight about this and if it is something to keep in mind/someone has tested it and has experiences to share/client and vendor support?
AV1 is very much on my radar! It's the successor to VP8 and VP9, with encoding techniques borrowed from Xiph's Daala and Cisco's Thor.
Client support is not yet widely rolled out, but there's broad industry support in the working group with the exception of Apple. Until AV1 reaches general usage many of the same companies are pushing VP9, including Microsoft which now fully supports VP9/Opus in Edge.
I haven't integrated AV1 playback to ogv.js yet for Safari but it's worth trying; the bitstream format is frozen and the codec library is being improved.
Somewhere a year or two down the road we will likely want to support AV1 for its even better compression, but have to wait for things to shake out first... it'll be even more demanding on the CPU so chunked encoding to better utilize our server farm would be good to have ready before that switch.
-- brion
-- Jaime
[0] url: https://blog.mozilla.org/blog/2018/07/11/royalty-free-web-video-codecs/
On Fri, Jun 29, 2018 at 6:46 PM, Brion Vibber bvibber@wikimedia.org wrote:
Awesome sauce. Thanks Moritz!
-- brion
On Fri, Jun 29, 2018 at 7:39 AM Moritz Muehlenhoff < mmuhlenhoff@wikimedia.org> wrote:
Hi all,
On Thu, Jun 28, 2018 at 01:54:18PM -0700, Brion Vibber wrote:
Current state on this:
- still hoping to deploy the libvpx+ffmpeg backport first so we start
with
best performance; Moritz made a start on libvpx but we still have to resolve ffmpeg (possibly by patching 3.2 instead of updating all the
way
to
3.4)
I've completed this today. We now have a separate repository component for stretch-wikimedia (named component/vp9) which includes ffmpeg
3.2.10
(thus allowing us to follow the ffmpeg security updates released in
Debian
with a local rebuild) with backported row-mt support and linked against libvpx 1.7.0.
I tested re-encoding
Pitts_Todeswand_2017_-_Jagath_Perera.webm
(which is a nice fast-paced test file) from VP8 to VP9, which results
in
a size reduction from 48M to 31M.
When using eight CPU cores on one of our video scaler servers, enabling row-mt gives a significant performance boost; encoding time went down from
5:31
mins to 3:36 mins.
All the details can be found at https://phabricator.wikimedia.org/T190333#4324995
Cheers, Moritz
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