stereo_position 1122 libavfilter/af_surround.c stereo_position(mag_dif, phase_dif, &x, &y); stereo_position 1158 libavfilter/af_surround.c stereo_position(mag_dif, phase_dif, &x, &y); stereo_position 1193 libavfilter/af_surround.c stereo_position(mag_dif, phase_dif, &x, &y); stereo_position 1245 libavfilter/af_surround.c stereo_position(mag_difl, phase_difl, &xl, &yl); stereo_position 1246 libavfilter/af_surround.c stereo_position(mag_difr, phase_difr, &xr, &yr); stereo_position 1304 libavfilter/af_surround.c stereo_position(mag_difl, phase_difl, &xl, &yl); stereo_position 1305 libavfilter/af_surround.c stereo_position(mag_difr, phase_difr, &xr, &yr); stereo_position 1363 libavfilter/af_surround.c stereo_position(mag_difl, phase_difl, &xl, &yl); stereo_position 1364 libavfilter/af_surround.c stereo_position(mag_difr, phase_difr, &xr, &yr);