[gdal-dev] gdalwarp question

[Billy Newman]

 If I do not provide a source spatial reference to gdalwarp will the
information in the geotiff be used instead?  ie. gdalwarp -t_srs
'EPSG:4326' input.tif output.tif?

I do not have a real example because I do not have the file I am working
with on this computer.  But an example gdalinfo would be:

PROJCS["NAD27 / UTM zone 11N",
    GEOGCS["NAD27",
        DATUM["North_American_Datum_1927",
            SPHEROID["Clarke 1866",6378206.4,294.978698213901]],
        PRIMEM["Greenwich",0],
        UNIT["degree",0.0174532925199433]],
    PROJECTION["Transverse_Mercator"],
    PARAMETER["latitude_of_origin",0],
    PARAMETER["central_meridian",-117],
    PARAMETER["scale_factor",0.9996],
    PARAMETER["false_easting",500000],
    PARAMETER["false_northing",0],
    UNIT["metre",1]]

So would my above example work when trying to convert this projection to
EPSG:4326, or do I need to specify the source spatial reference and/or
other parameters.

Thanks
Billy
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