VP8 (Webm) Codec SDK "Eider" Released

[tuqueque]

http://blog.webmproject.org/2012/05/vp8-codec-sdk-eider-released.html

I'd like to see ffmpeg builds (Windows) with this version for some testing... I'm using in most of my work the Webm format now.

[benwaggoner]

http://blog.webmproject.org/2012/05/vp8-codec-sdk-eider-released.html

I'd like to see ffmpeg builds (Windows) with this version for some testing... I'm using in most of my work the Webm format now.
And I'm curious - what are you using WebM for?

I've not found any practical use cases where H.264 doesn't offer substantial advantages, and would love to hear if someone has.

[tuqueque]

Hi benwaggoner

I'm all about open standards. I love Vorbis for my music and I used a lot the ogg Theora format when it was the only real open video codec out there, even when the quality was far from ideal...

But I'm very pleased with webm's results. Subjectively, I put it's quality equal or slightly superior to XviD/DivX... Which is very acceptable for me. You're right that is inferior to AVC, but is not that far behind. I think is matter of time before you can compare the two and get fairly similar results (I know webm will never surpass AVC's quality, though).

I use ffmpeg for webm compression, and after you get a good idea about how to squeeze the last bit of quality, you get a darn good webm file.

To give you an example... This is more or less the CL parameters I set when I use ffmpeg for webm compression: (2-pass compression for the best possible quality)

ffmpeg -i [INPUT FILE] -pass 1 -passlogfile pass.log -vcodec libvpx -level 100 -profile 0 -quality best -qmin 1 -qmax 63 -vp8flags altref -arnr_max_frames 8 -arnr_strength 3 -rc_lookahead 24 -keyint_min 64 -g 256 -threads 4 -slices 2 -b:v 512k -acodec libvorbis -ac 2 -q:a 0 [OUTPUT NAME].webm && ffmpeg -i [INPUT FILE] -pass 2 -passlogfile pass.log -vcodec libvpx -level 100 -profile 0 -quality best -qmin 1 -qmax 63 -vp8flags altref -arnr_max_frames 8 -arnr_strength 3 -rc_lookahead 24 -keyint_min 64 -g 256 -threads 4 -slices 2 -b:v 512k -acodec libvorbis -ac 2 -q:a 0 -y [OUTPUT NAME].webm

You can download the lastest ffmpeg (Windows) builds from: http://ffmpeg.zeranoe.com/builds/

I use webm videos for compressing general video, animation work, and I use it for my teaching classes examples (3D Animation software at the university).

Anyway... I hope you get interested in testing from time to time this format :).

[pandy]

hi tuqueque, no offense but we have previously discussion (few months - few tens months ago) - WebM is not open standard - in fact it is semi-closed semi-standard with open source for code. Google have great opportunity in past to make this codec as open standard but was not interested. Sad to say but currently WebM seems to be even less interesting than before (nowadays WebM per se is not industry standard and it is limited only to PC world - mostly YT).

All of this is my personal opinion and I'm not interested in starting flame about WebM vs H.264.

[tuqueque]

It's cool pandy :), I don't want to start flaming either...

Though I'd like to see the discussion about WebM not being an open standard (I'm a little ignorant on the details regarding open standards, to be honest), So I'm interested in reading other's opinions... If you could share a link to the thread, that'd be cool. Thanks.

[pandy]

It's cool pandy :), I don't want to start flaming either...

Though I'd like to see the discussion about WebM not being an open standard (I'm a little ignorant on the details regarding open standards, to be honest), So I'm interested in reading other's opinions... If you could share a link to the thread, that'd be cool. Thanks.

No problemo senior!

Good start is:
http://x264dev.multimedia.cx/archives/292
http://x264dev.multimedia.cx/archives/377
http://x264dev.multimedia.cx/archives/486
http://x264dev.multimedia.cx/archives/541