[FFmpeg-devel] [PATCH] Google WebP support

[Rob]

On 11 October 2010 07:51, Mike Melanson <mike at multimedia.cx> wrote:
> On 10/10/2010 10:34 PM, Pascal Massimino wrote:
>>
>> In decreasing order of concern:
>>
>> * i dont' see the handling / validation of metadata in img2 (which
>> is the primary goal of wrapping vp8 in RIFF).
>> * how to handle alpha as a separate layer (that is: alpha is present in
>> another chunk)?
>
> VP8/WebP doesn't present an alpha channel. There are no current, public
> plans to support this.

http://googlecode.blogspot.com/2010/09/webp-new-image-format-for-web.html

Search for 'transparency'.

Regards,
Rob