[Gdal-dev] reproject a big ecw

["SAEZ Laurent - CETE Méditerr./DI/ETER"]

Hi,

I've a big problem with gdalwarp.
I've to reproject a big ecw from the NTF - Lambert II étendu to the RGF93 - Lambert 93.
The ecw source file is about 7 Go. The final file will be also in ecw format.
I use FWTools 1.3.9 on Windows XP SP2 with 2 Go of RAM.
I have to make an intermediate file in ENVI hdr format because it seems that gdalwarp can't creat ecw files.
I use the syntax below to do the job :

gdalwarp --DEBUG ON --config GDAL_CACHEMAX 400 -wm 400 -rn -tr 0.5 0.5 -of EHdr -co "INTERLEAVE=BIL" -s_srs "+proj=lcc +a=6378249.2 +b=6356515.0 +lat_0=46d48'0.0N +lon_0=2d20'14.025E +lat_1=45d53'56.108N +lat_2=47d41'45.652N +x_0=600000.0 +y_0=2200000.0 +nadgrids=NTF2RGF93.gsb +units=m +wktext"  -t_srs EPSG:2154 "G:\34-2005-LA2E-C10.ecw" "I:\34-2005-L93-C10.bil"

The job is stopped with the following message :
ECWDataset: RasterIO(42565,10965,8846,5773 -> 8846x5773) - doing interleaved rea
d.
GDAL: GDALWarpKernel()::GWKNearestNoMasksByte()
Src=42565,10965,8846x5773 Dst=43937,11385,8788x5692
ERROR 2: Failed to allocate 153230412 byte source buffer.
GDAL: GDALClose(G:\34-2005-LA2E-C10.ecw)
GDAL: GDALClose(I:\34-2005-L93-C10.bil)
GDAL: GDALDeregister_GTiff() called.

What am I doing wrong ?

Thanks