Re: Compressed SVG? (and a couple of announcements)

On Wed, Oct 8, 2014 at 1:02 PM, Robert O'Callahan <robert@ocallahan.org>
wrote:

> On Tue, Oct 7, 2014 at 11:10 PM, Behdad Esfahbod <behdad@google.com>
> wrote:
>
>> On Tue, Oct 7, 2014 at 10:37 PM, Robert O'Callahan <robert@ocallahan.org>
>> wrote:
>>
>>> On Tue, Oct 7, 2014 at 1:36 AM, Behdad Esfahbod <behdad@google.com>
>>> wrote:
>>>
>>>> Robert, Jonathan, are you willing to support this in Firefox?
>>>>
>>>
>>> I'm not sure what exactly your proposal is. As I understand it, you're
>>> proposing to allow each SVG document to be optionally, independently
>>> compressed via zlib.
>>>
>>
>> I was thinking gzip instead of zlib, since gzip-compressed svg is in
>> common use as sgvz.
>>
>>
>>> How does the UA distinguish compressed documents from not-compressed
>>> documents?
>>>
>>
>> If the data stream starts with 0x1f 0x8b (gzip signature), then process
>> as svgz, otherwise process as svg.
>>
>
> That sounds reasonable.
>
> The gzip header contains the uncompressed data size.
>

Great point.  Thanks Rob.  The *last* four bytes of the gzip-compressed
data is the uncompressed size.


Doesn't that mean concerns about knowing the uncompressed size are already
> addressed?
>

I hope so.  Sairus, Leonard, does that address your concerns?

Rob
>

Received on Friday, 10 October 2014 06:31:15 UTC