The new version is up* and I did a quick benchmark:
ffmpeg-git-20151120-64bit-static$ ./ffmpeg -i a.mp4 -c:v libvpx-vp9 -b:v
1M -cpu-used 4 -threads 4 -c:a libvorbis b.webm
fps= 13
ffmpeg-git-20151124-64bit-static$ ./ffmpeg -i a.mp4 -c:v libvpx-vp9 -b:v
1M -cpu-used 4 -threads 4 -c:a libvorbis b.webm
fps= 17
Not sure if the multi-core command (4 cores, no HT) is correct but I get
like only 80% CPU usage on average.
*The commit date is also much newer:
libvpx$ git show -s --format=%ci 0134764
2015-10-08 14:05:25 -0700
$ git fetch
libvpx$ git show -s --format=%ci b16a164
2015-11-23 23:37:13 +0000
On 23.11.2015 19:51, D wrote:
John just told me that he's "[...] aware of the issue and it should be
built with 1.5 either by this time tomorrow or the next day". He also
wrote that the used VP9 version is just a few commits behind the v1.5
tag. I'm only wondering because
libvpx$ git show -s --format=%ci 0134764
2015-10-08 14:05:25 -0700
shows it's older (0134764 (without the g at the beginning)).
Anyway, thanks, John.
On 23.11.2015 14:34, D wrote:
Hi,
I just downloaded the latest build (http://johnvansickle.com/ffmpeg/
-> "build: ffmpeg-git-64bit-static.tar.xz") and when encoding with
VP9 (the new release has supposedly: "- Substantially improved VP9
encoding speed and quality"), it says:
...
[libvpx-vp9 @ 0x41f32e0] v1.4.0-1490-g0134764
...
I'm not sure but it looks like 0134764 (without the g at the
beginning) is indeed rather old:
$ git clone https://chromium.googlesource.com/webm/libvpx
$ cd libvpx
$ git checkout v1.5.0
libvpx$ git show -s --format=%ci 0134764
2015-10-08 14:05:25 -0700
When will ffmpeg use VP9 v1.5?
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