__vfe_get_format
*fmt = *__vfe_get_format(line, sd_state, MSM_VFE_PAD_SINK,
fmt = __vfe_get_format(line, sd_state, MSM_VFE_PAD_SINK, which);
sink_fmt = __vfe_get_format(line, sd_state, MSM_VFE_PAD_SINK,
format = __vfe_get_format(line, sd_state, fmt->pad, fmt->which);
format = __vfe_get_format(line, sd_state, fmt->pad, fmt->which);
format = __vfe_get_format(line, sd_state, MSM_VFE_PAD_SRC,