jpeg_write_coefficients
Name
jpeg_write_coefficients -- Compression initialization for writing raw-coefficient data
Synopsis
void
jpeg_write_coefficients(j_compress_ptr
cinfo, jvirt_barray_ptr *
coeff_arrays);
Description
jpeg_write_coefficients() shall write the contents of the JPEG file as DCT
coefficients. The DCT coefficients shall be obtained from the array of virtual
block array descriptors pointed to be "coeff_arrays". The number of arrays
to be written is obtained from cinfo.num_components.
Note: The virtual arrays may not be realized before jpeg_write_coefficients()
is called. The virtual arrays requested from the compression object's memory
manager may be realized by calling jpeg_write_coefficients() as a side-effect.
