sflrwave2 (2.0-git)
2-D FFT-based (point src) wave propagation and its adjoint

        sflrwave2 < data.rsf > image.rsf src=src.rsf snaps=snaps.rsf left=left.rsf right=right.rsf adj=n timer=n verb=n snap=0 pad1=1 nt= dt= nt= dt=

bool adj=n [y/n]
if n, modeling; if y, migration
float dt=
time sampling
file left=
auxiliary input file name
int nt=
time samples
int pad1=1
padding factor on the first axis
file right=
auxiliary input file name
int snap=0
interval for snapshots
file snaps=
auxiliary output file name
file src=
auxiliary input file name
bool timer=n [y/n]

bool verb=n [y/n]