[Thunar-dev] A Standard for Thumbnailers

[Benedikt Meurer]

Erlend Davidson wrote:
>>> However, thunar-vfs-pixbuf-thumbnailer-1 is optimised for this purpose 
>>> (uses the jpg resizing trick mentioned on the xdg mailing list) and 
>>> takes just 0.1 seconds to convert the jpeg to a png - but I can't pipe 
>>> the output from dcraw into it.  For this reason would it be possible to 
>>> add an option to thunar-vfs-pixbuf-thumbnailer-1 which enables it to 
>>> take the input image from stdin?
>>>     
>> The thunar-vfs-pixbuf-thumbnailer doesn't use any special tricks, it
>> just a wrapper for GdkPixbuf routines. Check the source it's really simple.
> I see that now.  So GdkPixbuf is faster than convert?  Is it using that 
> DCT technique for resizing?

Checking my own source again... you should be able to store the
thumbnail as JPEG. thunar_vfs_thumb_factory_generate_thumbnail() will
also accept JPEGs and convert them to PNGs internally.

Benedikt