Google and the <video> tag

Though H.264 plays an important role in video, as our goal is to enable open innovation, support for the codec will be removed and our resources directed towards completely open codec technologies.

From HTML Video Codec Support in Chrome

Well that sucks.

Gruber asks a few “simple questions” here. Aside from the question of hypocrisy w.r.t. Flash bundling, I think his points are more than neutralized by these ten questions:

You are a proponent of Apple using its influence to diminish the importance of Flash for the web. Yet, when Google makes similar moves to rid the web of a similarly closed and patented, albeit different type of technology, you do not support them. Why is Apple promoting an open web a good thing, but Google promoting an open web a bad thing?

I think that if Google pulled Flash support from Chrome there would be no question that Google were on the side of the angels (although it would still be a dumb thing to do), but since there’s no hint of this it seems purely like a cynical move to hurt Apple’s anti-Flash campaign which will damage HTML5 <video> adoption. I think you can make the argument that HTML5 <video> adoption with H264 as the defacto standard codec is a Bad Thing.

Anyway it’s a bigger mess now than it was before Google decided to do this. Ultimately it will come down to “what will let the most people see the most porn using the most devices?”

Postscript: “standards”

One of the arguments made in favor of WebM/VP8 is that it can be part of the W3C standard, unlike H264, because it’s not encumbered by license fees. The problem here is that WebM/VP8 almost certainly is encumbered (as was GIF in earlier days), it just hasn’t been sued yet because no-one uses it. But this is beside the point — the CSS font-family property supports any font, and almost all the fonts that anyone cares about are encumbered (i.e. subject to royalties, copyright, and so on). Just as CSS font-family can specify a non-free non-open-source font, there’s no reason why a video tag can’t point to an arbitrarily encoded video.

To put it another way:

There’s no conflict between the HTML specification being open and royalty-free and H264 video playback being supported in HTML5 video tags as long as the codec doesn’t need to be implemented by the browser. Just as a slab of text with font-family “Verdana” won’t necessarily display on every browser correctly (if the font is not installed) it would follow that not every video will play back in every browser.

As a practical matter, it would be nice if serving a page with video were as simple an affair as possible. E.g. figuring out which video to serve didn’t involve sniffing the browser, operating system, and so forth; better yet, if one video format worked everywhere. As a practical matter right now H264 is the best candidate. VP8/WebM will never be the best candidate because by the time there’s a critical mass of hardware support out there it will be obsolete. This is a stupid, stupid fight.

And yet one more thing:

It’s interesting that the companies still in favor of h264 (Apple, Microsoft) are precisely those companies who do not implement the codec in the browser. Apple and Microsoft both implement h264 as a plugin architecture at OS level rather than a plugin at browser level (a much worse thing — see this excellent piece that daringfireball brought to my attention).

Is a it a font or an image file format?

The flipside of my argument that H264 should be considered analogous to a font is that, generally speaking, text is still legible when presented in the wrong font. By that argument H264 is more like an image format (JPG, PNG, etc.). If we accept this argument — which I’d say is the most h264-hostile stance (within reason) to take with respect to video codecs — then consider that most browsers simply let you display pretty much any image that’s convenient inside an <img> tag (sometimes badly, as per Internet Explorer’s notorious mishandling of PNG files over the years), generally by using the underlying OS’s APIs for handling images, which is exactly what I’d suggest the idealistic and pragmatic approach for video ought to be.

Would it be great if there were one codec out there that worked everywhere that web developers could target? Sure. But that doesn’t mean not supporting video codecs that happen to be around anyway, just as I can click on a PSD or TIFF in Safari and see it in the browser.

Ultimately, Google’s stance would have web browsers simply refuse to play back content with non-standards-based content (unless it’s Flash). What kind of “principled” or “non-evil” position is that? Again, if Google were to drop Flash support and make the argument that HTML5 is “the platform”, then it could make some kind of argument about consistency, but that’s not it. Google is making Flash part of “the platform” but not H264.

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